Conditions: Preeclampsia Postpartum
Allocation: RANDOMIZED | Intervention model: CROSSOVER
Enrollment: 11
Healthy volunteers: no

Brief summary:
Women who develop preeclampsia during pregnancy are more likely to develop and die of cardiovascular disease later in life, even if they are otherwise healthy. The reason why this occurs is unclear but may be related to blood vessel damage and increased inflammation that occurs during the preeclamptic pregnancy and persists postpartum. The purpose of this investigation is to determine the mechanisms contributing to this lasting blood vessel damage and to test whether taking a medication that blocks angiotensin II receptors (losartan) decrease these negative effects in women who have had preeclampsia. Identification of these mechanisms and treatment strategies may lead to better clinical management,of cardiovascular disease risk in these women.

In this study we use the blood vessels in the skin as a representative vascular bed. Using a minimally invasive technique (intradermal microdialysis for the local delivery of pharmaceutical agents) we examine the blood vessels in a nickle-sized area of the skin in women who have had preeclampsia. We make these measurements after the subjects take a placebo and after they take losartan (an angiotensin II receptor blocker) to test whether this treatment improves vascular function in these women. As a compliment to these measurements, we also draw blood from the subjects and isolate the inflammatory cells to test how sensitive their inflammatory responses are following the placebo and the losartan treatment.

Detailed description:

Arms:
arm 1: 6 weeks of daily (50mg/day) oral losartan potassium tablet arm 2: 6 weeks of daily oral placebo tablet

Interventions: intervention 1: Losartan Potassium intervention 2: Placebo
Intervention descriptions: intervention 1: subjects ingest 50mg losartan potassium tablet daily for 6 weeks intervention 2: subjects ingest placebo tablet daily for 6 weeks

Protocol document:
Prot_SAP_000.pdf: 
Document: Study Protocol and Statistical Analysis Plan  
Study Title: Angiotensin II Receptor Inhibition to Improve Microvascular Function in 
Women Who Have Had Preeclampsia 
NCT# 04632589 
Document Date(s): 
 
Updated and approved by IRB 7/19/2024 
Downloaded 6/2/2025 


Losartan for Vascular Function after Preeclampsia
PI:
Anna Reid-Stanhewicz
IRB ID #: 202006148
Project Details
I. Project Introduction
I.1
Project to be reviewed by:
IRB-01
I.2
Project Title:
Angiotensin II Receptor Inhibition to Improve Microvascular Function in Women who have had Preeclampsia
I.3
Short Title (optional):
Losartan for Vascular Function after Preeclampsia
I.4
Provide a short summary of the purpose and procedures of the study proposed in this IRB application.
DO NOT include information on studies not proposed in this application.
Use LAY terminology only. This must be easily understandable by IRB community members and nonscientists.
DO NOT cut and paste technical abstracts from funding applications that may not be understood by a general audience.
Women who develop preeclampsia during pregnancy are more likely to develop and die of cardiovascular disease later in life, even if they are
otherwise healthy. The reason why this occurs is unclear but may be related to blood vessel damage and increased inflammation that occurs
during the preeclamptic pregnancy and persists postpartum. The purpose of this investigation is to determine the mechanisms contributing to
this lasting blood vessel damage and chronic inflammation, and to test whether taking a medication that blocks angiotensin II receptors
(losartan) decrease these negative effects in women who have had preeclampsia. Identification of these mechanisms and treatment strategies
may lead to better clinical management of cardiovascular disease risk in these women.
In this study we are recruiting women who have had preeclampsia in the past 5 years. We use the blood vessels in the skin as a representative
vascular bed. Using a minimally invasive technique (intradermal microdialysis for the local delivery of pharmaceutical agents) we examine
the blood vessels in a nickle-sized area of the skin in women who have had preeclampsia. We make these measurements after the subjects
take a placebo and after they take losartan (an angiotensin II receptor blocker) to test whether this treatment improves vascular function in
these women. Because losartan can have dangerous effects on a fetus, women enrolled in this study will be required to use an effective form
of birth control [hormonal patch, implant or pill; intrauterine device; consistent use of barrier contraceptive; or prior medical procedure to
prevent pregnancy (i.e. tubal ligation or vasectomy in current partner)]. As a compliment to these measurements, we also draw blood from the
subjects and isolate the inflammatory cells to test how sensitive their inflammatory responses are following the placebo and the losartan
treatment.
A modification was submitted changing the eligibility requirements from having preeclampsia within the past 2 years, to within the past 5
years. This modification was made to help with recruitment for the study. Women who are breastfeeding are excluded from this study. Since
many women are breastfeeding during those first 2 years after delivery, it reduced those that were eligible for the study. We changed it to
delivering within the past 5 years to match the other preeclampsia studies in our lab (IRB #202203433, 202303202, 202303799).
I.5
Specify your research question(s), study aims or hypotheses (do not indicate "see protocol")
AIM: To determine the effect of systemic AT1R inhibition (oral losartan) on in vivo and in vitro measures of inflammation and endothelial
function in women who have had preeclampsia (PE) . Utilizing a chronic (6 week) losartan intervention coupled with intradermal
microdialysis and assessment of the inflammatory response to ang II stimulation in peripheral blood mononuclear cells (PBMC), we will test
the hypotheses that therapeutic doses of the AT1R inhibitor augment endothelium-dependent dilation and reduce inflammation in PE.
HYPOTHESES
1: Chronic oral losartan therapy will augment endothelium-dependent dilation in PE by increasing nitric oxide-dependent dilation.
2: Chronic oral losartan therapy will attenuate exaggerated ang II sensitivity in PE.
3: Chronic oral losartan therapy will reduce circulating inflammatory cytokines, and attenuate the exaggerated inflammatory response to ang
II stimulation in PBMCs from PE.
NOTE: This IRB protocol encompasses the projects of aim 3 in the attached NIH K99/R00 award. Aim 2 has been completed and aim 1 is
approved under HawIRB #201909818.
I.6
Background and significance and/or Preliminary studies related to this project.
(do not indicate "see protocol")
Angiotensin II Sensitivity Contributes to Endothelial Dysfunction Following Preeclampsia: Women with a history of preeclampsia have an
exaggerated presser response to systemic infusion of Ang II. Similarly, compelling in vivo pilot data from our lab demonstrates that this
increased sensitivity to Ang II is present in the microcirculation and contributes to endothelial dysfunction postpartum in formerly
preeclamptic patients. Ang II mediates several events of the inflammatory process including activation of the vascular endothelium; and
AT1R activation plays a large role in the pathophysiology of concurrent inflammatory reactions through this direct action on local vascular
cells. Inhibition of Ang II, either through ACE inhibition or AT1-receptor antagonism, reduces tissues inflammation and oxidative injury.
Reciprocally, inhibition of inflammatory mediators such as IL-17 producing T cells blunts the pressor response to systemic Ang II infusion in
animal models of hypertension. Collectively, increased sensitivity to Ang II coupled with the role of Ang II signaling in chronic
inflammation, suggests that these factors are likely reciprocal, and contribute to microvascular dysfunction and elevated CVD risk in women
who have had preeclampsia.
AT1 Receptor Inhibition Is a Viable Intervention Strategy to Mitigate CVD Risk Following Preeclampsia: The clinical symptoms of
preeclampsia (high blood pressure, proteinuria, edema, etc.) typically resolve within 12 weeks post-partum. However, despite this absence of
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clinical CVD, women who have had preeclampsia demonstrate attenuated endothelium-dependent dilation, augmented ang II sensitivity, and
elevated inflammation, indicating the need for early intervention. Aside from its primary antihypertensive effects, AT1R inhibition prevents
the production of inflammatory mediators and reduces biomarkers of inflammation in populations with known CVD. Similarly, chronic AT1R
inhibition improves endothelium-dependent dilation in patients with vascular dysfunction independent of reduction in blood pressure. Given
that women who have had preeclampsia have a greater sensitivity to ang II, AT1R inhibition may be a mechanistically specific intervention
strategy to reduce inflammation and ameliorate endothelial dysfunction in this population. However, to date, no human studies have
mechanistically examined this specific pharmacotherapy in women who have had preeclampsia.
I.7
Literature cited / references (if attaching a grant or protocol enter N/A).
NA
II. Research Team
II.1
Principal Investigator
Name
E-mail
College
Anna Reid-Stanhewicz anna-stanhewicz@uiowa.edu College Lib Arts and Sciences
II.2
Team Members
UI Team Members
Name
E-mail
College
Contact Key
Prsn
UI
COI
VAMC
COI
Consent Process
Involvement
Deactivated
Anna Reid-Stanhewicz, PHD
anna-
stanhewicz@uiowa.edu
College Lib Arts and
Sciences
Yes
Yes
No
Yes
No
Adam Corkery, PHD
adam-
corkery@uiowa.edu
College Lib Arts and
Sciences
No
Yes
No
Yes
No
Vincenzo Dimarco, High School vincenzo-
dimarco@uiowa.edu
College of Liberal
Arts and Sciences
No
No
No
No
No
Alyssa Engels, High School
alyssa-engels@uiowa.edu College of Liberal
Arts and Sciences
No
No
No
No
No
Ashley Faber, High School
ashley-m-
faber@uiowa.edu
No
No
No
No
No
Katharine Geasland, BSN
katharine-
geasland@uiowa.edu
Inst Clinical &
Translational
No
No
No
No
No
Claire Goebel, BA
claire-goebel@uiowa.edu College Lib Arts and
Sciences
No
No
No
Yes
No
Diana Jalal, MD
diana-jalal@uiowa.edu
Carver College of
Medicine
No
Yes
No
No
No
Isabel Klimowicz, High School isabel-
klimowicz@uiowa.edu
College of Liberal
Arts and Sciences
No
No
No
No
No
Ruda Lee, MS
ruda-lee@uiowa.edu
Graduate College
No
No
No
Yes
No
Maddie Marino, High School
madalyn-
marino@uiowa.edu
College of Liberal
Arts and Sciences
No
No
No
No
No
Grace Maurer, MS
grace-maurer@uiowa.edu Graduate College
No
No
No
Yes
No
Leah Patton, High School
leah-patton@uiowa.edu
College of Liberal
Arts and Sciences
No
No
No
No
No
Gary Pierce, PHD, MS
gary-pierce@uiowa.edu
College Lib Arts and
Sciences
No
Yes
No
No
No
Bomi Ryang, BS
bomi-ryang@uiowa.edu
College of
Pharmacy
No
No
No
No
No
Kelsey Schwartz, BS
kelsey-
schwartz@uiowa.edu
Carver College of
Medicine
No
No
No
Yes
No
Nikolas Soofi, High School
nikolas-soofi@uiowa.edu College of Liberal
Arts and Sciences
No
No
No
No
No
Amy Marie Stroud, MSN
amy-stroud@uiowa.edu
Carver College of
Medicine
No
Yes
No
No
No
Olivia Taeger, High School
olivia-taeger@uiowa.edu College of Liberal
Arts and Sciences
No
No
No
No
No
Lizzy Wetzel, High School
elizabeth-
wetzel@uiowa.edu
UIHC University
Hospital
No
No
No
No
No
Ellie Wilson, High School
ellie-wilson@uiowa.edu
College of Liberal
Arts and Sciences
No
No
No
No
No
Non-UI Team Members
Name Institution Location FWA Role DHHS Contact Key Prsn UI COI VAMC COI Consent Process Involvement Email
Nothing found to display.
II.3
The Principal Investigator of this study is:
Faculty
II.5
Select research team member who is the primary contact for study participants.
Claire Goebel
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II.6
Identify the key personnel. The system will automatically designate the PI and all faculty members on the project as “key personnel.” For
information about other team members who should be designated as “key personnel” please click on the help information.
Name
Is Key Personnel
Anna Reid-Stanhewicz, PHD
Yes
Adam Corkery, PHD
Yes
Vincenzo Dimarco, High School
No
Alyssa Engels, High School
No
Ashley Faber, High School
No
Katharine Geasland, BSN
No
Claire Goebel, BA
No
Diana Jalal, MD
Yes
Isabel Klimowicz, High School
No
Ruda Lee, MS
No
Maddie Marino, High School
No
Grace Maurer, MS
No
Leah Patton, High School
No
Gary Pierce, PHD, MS
Yes
Bomi Ryang, BS
No
Kelsey Schwartz, BS
No
Nikolas Soofi, High School
No
Amy Marie Stroud, MSN
Yes
Olivia Taeger, High School
No
Lizzy Wetzel, High School
No
Ellie Wilson, High School
No
III. Funding/Other Support
III.1
Select all sources of funding and/or support that will be applied to this research (select all that apply):
III.2
Funding Sources
Source Entered as Text DSP Link
Type
Source
Project Title Nam
Source is entered as text no
Federal Agency US Department of Health & Human Services, National Institutes of Health
Role of
Angiotensin
II and
Chronic
Inflammation
in Persistent
Microvascular
Dysfunction
Following
Preeclamptic
Pregnancy
Ann
Stan
* new source name
III.3
Does any member of the research team have a financial conflict of interest related to this project according to the Conflict of Interest in
Research policy? If yes, please indicate which members below.
Name
Has Conflict of Interest
Anna Reid-Stanhewicz, PHD
No
Adam Corkery, PHD
No
Vincenzo Dimarco, High School
No
The funding award (contract/grant) has been routed through the Division of Sponsored Programs (DSP)
University of Iowa Center for Advancement (UICA)
Howard Hughes Medical Institute (private foundation)
Fellowship Award
In Kind Donations
PI Discretionary
Departmental
UI Institutional Grant/Award
PI Personal Funds (students only)
No Funding (students only)
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Alyssa Engels, High School
No
Ashley Faber, High School
No
Katharine Geasland, BSN
No
Claire Goebel, BA
No
Diana Jalal, MD
No
Isabel Klimowicz, High School
No
Ruda Lee, MS
No
Maddie Marino, High School
No
Grace Maurer, MS
No
Leah Patton, High School
No
Gary Pierce, PHD, MS
No
Bomi Ryang, BS
No
Kelsey Schwartz, BS
No
Nikolas Soofi, High School
No
Amy Marie Stroud, MSN
No
Olivia Taeger, High School
No
Lizzy Wetzel, High School
No
Ellie Wilson, High School
No
IV. Project Type
IV.1
Do you want the IRB to give this project
Regular (expedited or full board) review
IV.2
Enter the date you will be ready to begin screening subjects/collecting data for this project. (If you do not have a specified date, add
"upon IRB approval")
upon IRB approval
IV.3
Are you requesting a waiver of informed consent/authorization (subjects will not be given any oral or written information about the
study)?
No
V. Other Committee Review
V.1
Does this project involve any substance ingested, injected, or applied to the body?
Do not answer yes, if the involvement includes a device, wire, or instrument
Yes
V.1.a
What is/are the substance(s):
Note: All of the following research agents used with microdialysis have been approved by the FDA for this study under IND# 124,294. A
modification to this IND has been submitted to include oral losartan.
Acetylcholine, Powder
Angiotensin II, Powder
NG-nitro-L-arginine methyl ester, Powder
Norepinephrine, Powder
Sodium Nitroprusside, Powder
Lactated Ringer’s, Liquid
Losartan, Tablet
Placebo, Tablet
V.1.b
Are any of these substances defined as a Schedule I - V Controlled Substance?
No
V.2
Are any contrast agents used for any purpose in this study?
No
V.4
Are all drugs or substances in this study being used within the FDA approved population (i.e., children, adults)?
Yes
V.5
Are all drugs or substances in this study being used within the FDA approved indication (i.e., disease, condition)?
No
V.6
Are all drugs or substances in this study being used within the FDA approved dose?
No
V.7
Are all drugs or substances in this study being used within the FDA approved route of administration?
No
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V.8
Drugs used in study that are not FDA approved for the population, indication, dose, or route of administration
Ng-nitro-L-arginine-methyl ester (L-NAME) ()
Name of Sponsor
Anna Stanhewicz
Investigator's Brochure Version
NA
Investigator's Brochure Date
NA
Who is supplying the drug
Tocris
Who is dispensing the drug
PI/Research Team
Where will the drug be stored
118 PSRB
IND#
124,294
Dose
<0.01mg
Route of administration
intradermal microdialysis
losartan ()
Name of Sponsor
Anna Stanhewicz
Investigator's Brochure Version
NA
Investigator's Brochure Date
NA
Who is supplying the drug
NuCara Pharmacy
Who is dispensing the drug
PI/Research Team
Where will the drug be stored
NA - individual prescriptions obtained from NuCara, dispensed to participant
immediately
IND#
124,294
Dose
50mg/day for 6 weeks
Route of administration
oral
lactated Ringer's solution ()
Name of Sponsor
Anna Stanhewicz
Investigator's Brochure Version
NA
Investigator's Brochure Date
NA
Who is supplying the drug
VWR
Who is dispensing the drug
PI/Research Team
Where will the drug be stored
118 PSRB
IND#
124,294
Dose
NA
Route of administration
intradermal microdialysis
acetylcholine ()
Name of Sponsor
Anna Stanhewicz
Investigator's Brochure Version
NA
Investigator's Brochure Date
NA
Who is supplying the drug
USP
Who is dispensing the drug
PI/Research Team
Where will the drug be stored
118 PSRB
IND#
124,294
Dose
<0.01
Route of administration
intradermal microdialysis
sodium nitroprusside ()
Name of Sponsor
Anna Stanhewicz
Investigator's Brochure Version
NA
Investigator's Brochure Date
NA
Who is supplying the drug
USP
Who is dispensing the drug
PI/Research Team
Where will the drug be stored
118 PSRB
IND#
124,294
Dose
<0.01mg
Route of administration
intradermal microdialysis
norepinephrine ()
Name of Sponsor
Anna Stanhewicz
Investigator's Brochure Version
NA
Investigator's Brochure Date
NA
Who is supplying the drug
Tocris
Who is dispensing the drug
PI/Research Team
Where will the drug be stored
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IND#
124,294
Dose
<0.01mg
Route of administration
intradermal microdilaysis
angiotensin II ()
Name of Sponsor
Anna Stanhewicz
Investigator's Brochure Version
NA
Investigator's Brochure Date
NA
Who is supplying the drug
Tocris
Who is dispensing the drug
PI/Research Team
Where will the drug be stored
118 PSRB
IND#
124,294
Dose
<0.01mg
Route of administration
intradermal microdialysis
V.9
Will any subject be asked to undergo a diagnostic radiation procedure (including radiographic, nuclear medicine, DEXA)?
No
V.14
Will any subject be asked to undergo a radiation therapy procedure (including external beam therapy, brachytherapy, or nuclear medicine
therapy)?
No
V.20
Does this project involve the deliberate transfer of recombinant or synthetic nucleic acid molecules, or DNA or RNA derived from recombinant
or synthetic nucleic acid molecules, into one or more human research participant?
No
V.21
Will any portion of this project be conducted in the CRU, or does it use any CRU resources?
Yes
V.22
Will this project use:
any resource/patients of the Holden Comprehensive Cancer Center
involve treatment, detection, supportive care, or prevention of cancer
No
V.25.a
Will the study involve any of the following activity at UI Health Care, even if subjects or their insurance will not be billed for the item or service,
and regardless of the study funding source (including studies with departmental or no funding)?
Procedures, tests, examinations, hospitalizations, use of Pathology services, use of clinic facilities or clinical equipment, or any patient
care services, including services conducted in the Clinical Research Unit; or
Physician services or services provided by non-physicians who are credentialed to bill (ARNPs, Physician Assistants, etc.)
Yes
V.25.b
Will there be any procedures or services that may happen as part of a subject’s regular medical care and as part of the study?
No
V.25.c
Will any study equipment or devices be supplied by a study sponsor?
No
V.25.e
Is there or will there be an internal budget for this study?
No
V.25.f
Is there or will there be an external budget for this study?
Yes
V.26
The study involves Department of Nursing Services and Patient Care nursing, nursing resources or evaluates nursing practices at UI
Health Care.
No
V.27
Will the study involve the use of the I-CTMS (OnCore) for clinical trial data management? Select yes if any or all of the following apply:
Any study required to register subjects in EPIC are encouraged to use the I-CTMS
Best practice is to use the I-CTMS for any new study that involves subject tracking or sponsor invoicing
Note: This question is for non-oncology studies only. For oncology studies use existing HCCC OnCore processes by selecting V.22
No
VI. Subjects
VI.1
How many adult subjects do you expect to consent or enroll for this project?
20
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VI.2
What is the age of the youngest adult subject?
18.0
VI.3
What is the age of the oldest adult subject?
50.0
VI.4
What is the percentage of adult male subjects?
0
VI.5
What is the percentage of adult female subjects?
100
VI.6
How many minor subjects do you expect to consent or enroll for this project?
0
VI.13
Describe EACH of your subject populations
Include description of any control group(s)
Specify the Inclusion/Exclusion criteria for EACH group
INCLUSION CRITERIA: In this study we are recruiting women who have had preeclampsia in the past 5 years. Post-partum women, 18 years or
older, who have delivered within 5 years of the study visit and who have had a preeclamptic pregnancy diagnosed by their obstetrician and
confirmed according to the American College of Obstetricians and Gynecologists criteria for preeclampsia. [This information will be self-reported
by the subjects.] Because losartan can have dangerous effects on a fetus, women enrolled in this study will be required to use an effective form of
birth control [hormonal patch, implant or pill; intrauterine device; consistent use of barrier contraceptive; or prior medical procedure to prevent
pregnancy (i.e. tubal ligation, or vasectomy in current partner)].
EXCLUSION CRITERIA: We exclude participants for skin diseases, current tobacco use, diagnosed or suspected hepatic or metabolic disease
including chronic kidney disease (CKD) defined as reduced eGFR < 60 mL/min/1.73m2, statin or other cholesterol-lowering medication, current
antihypertensive medication, history of hypertension prior to pregnancy, history of gestational diabetes, currently pregnant or planning to become
pregnant in the next 6 months, currently breastfeeding, body mass index <18.5 kg/m2, allergy to materials used during the experiment.(e.g. latex),
known allergies to study drugs.
VI.14
Provide an estimate of the total number of subjects that would be eligible for inclusion in each of your study populations (include your control
population if applicable)
We will recruit subjects from Johnson and surrounding counties in Iowa. According to the Iowa Department of Public Health, Johnson county has a
live birth rate of 11.7/1,000 residents or ~1,750 live births per year. Surrounding counties range from 9.6-12 live births/1,000, adding ~4,000
additional live births annually within the geographical area of reach. Assuming an average rate of 7% for preeclampsia incidence, approximately
400 women would be eligible to participate in the preeclamptic group each year. We will recruit women within 5 years postpartum so we estimate
that there are approximately 2,000 eligible participants in our geographic area at any given time.
VI.15
Describe how you will have access to each of your study populations in sufficient number to meet your recruitment goals.
We will advertise for participants by posting fliers in the community and in clinicians offices where permission has been granted (see attached
flier). We will also post this flier in digital spaces such as on Facebook, Instagram, twitter, and Iowa City Mom's blog (see IC Mom Ad).
Participants will be recruited from the University of Iowa and Iowa City, Iowa by mass email (see attached mass email text) and the Noon News
(see attached Noon news posting) a newsletter available on campus at UIHC. We will also recruit participants through Research Match. Lastly, we
will recruit participants through the Maternal Fetal Tissue Bank (IRB#200910784). We will obtain the contact information and pregnancy history of
the registry participants and reach out to eligible volunteers with the approved recruitment materials (email, flyer, phone call).
All individuals interested in participating will be directed to contact research staff by phone or email. All individuals interested in the study will be
invited to complete the RedCap eligibility survey sent via email. If an individual appears to be eligible for the study based on their RedCap
Eligibility survey responses, a member of the research team will contact them via phone or email to tell the individual more about the study, answer
any questions, and perform a phone screening to determine eligibility.
VI.16
Do you plan to recruit/enroll non-English speaking people?
No
VI.18
Do you propose to enroll any of the following in this study as subjects?
Employee of the PI or employee of a research team member
Individual supervised by PI or supervised by member of research team
Individual subordinate to the PI or subordinate to any member of the research team
Student or trainee under the direction of the PI or under the direction of a member of the research team
No
VI.20
Will subjects provide any information about their relatives?
No
VI.23
Will anyone (other than the subject) provide you with information about the subject (e.g. proxy interviews)?
No
VI.26
Is this project about pregnant women?
No
VI.27
Will this project involve fetuses?
No
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VI.28
Does this project involve adult subjects who may be incompetent or have limited decision-making capacity on initial enrollment into the study?
No
VI.32
Does this project involve subjects whose capacity to consent may change over the course of the study?
No
VI.37
Does this project involve prisoners as subjects?
No
VII.A. Project Description (A)
VII.A.1
Where will project procedures take place (check all that apply)?
CRU
Other UI campus site - 118 Pharmaceutical Sciences Research Building (PSRB)
VII.A.2
Is this project also being conducted by other researchers at their own sites (e.g. a multi-site collaborative project)?
No
VII.B. Project Description (B)
VII.B.1.
Does this project involve any of the following (Check all that apply):
VII.B.1.a
Does this project involve any of the following (Check all that apply):
Interventional – Includes Clinical (or Treatment) trial, Physiology intervention/study, Behavioral intervention/study, Diagnostic
Trial.
Clinical (or Treatment) trial – A prospective biomedical or behavioral research study of new treatments, new drug or combinations of
drugs, new devices, or new approaches to surgery or radiation therapy. (NIH and ClinicalTrials.gov & FDA) The University of Iowa
requires a freestanding protocol.
Physiology intervention/study – A pharmacologic or measurement study aimed at understanding basic mechanisms of disease and/or
of normal human physiology, often without any therapeutic intent (though a clinical trial could include such components, often labeled
as “translational” or “basic science” aims.) Measurements in such studies could include, but are not limited to, a blood draw, EKG,
EEG, MRI, auditory or sensory testing, checking vital signs, DEXA scans, eye tracking, specimen collection, exercise, fasting, special
diets, etc.
Behavioral intervention/study – May be used to refer to studies of individual or group behavior. This option does not include drugs,
biologics, or devices but could include psychotherapy, lifestyle counseling, behavior modification, etc.
Diagnostic trial – Protocol designed to evaluate one or more interventions aimed at identifying a disease or health condition
(ClinicalTrials.gov & FDA)
Observational
Expanded Access – A process regulated by the Food and Drug Administration (FDA) that allows manufacturers to provide investigational
new drugs to patients with serious diseases or conditions who cannot participate in a clinical trial. Examples of expanded access include
non-protocol access to experimental treatments, including protocol exception, single-patient IND, treatment IND, compassionate use,
emergency use, continued access to investigational drug, and parallel track (ClinicalTrials.gov & FDA).
Registry – The collection and maintenance of data (not including biologic samples) in which: (1) the individuals in the registry have a
common or related condition(s), and/or (2) the individuals in the registry are interested in being contacted for future studies by
investigators other than those listed in Section II of this project.(UI Guide)
Repository – The collection, storage, and distribution of human biologic samples and/or data materials for research purposes. Repository
activities involve three components: (i) the collection of data and/or specimens such as blood, tissue, saliva, etc.; (ii) the storage of data or
specimens, and data management function; and (iii) the sharing of data/specimens with recipient investigators other than the original
investigators. (paraphrased from OHRP)
Other
Phase I trials – include initial studies to determine the metabolism and pharmacologic actions of drugs in humans, the side effects
associated with increasing doses, and to gain early evidence of effectiveness; may include healthy participants and/or patients
(ClinicalTrials.gov & FDA)
Phase II trials – include controlled clinical studies conducted to evaluate the effectiveness of the drug for a particular indication or
indications in patients with the disease or condition under study and to determine the common short-term side effects and
risks(ClinicalTrials.gov & FDA)
Phase III trials – include expanded controlled and uncontrolled trials after preliminary evidence suggesting effectiveness of the
drug has been obtained, and are intended to gather additional information to evaluate the overall benefit-risk relationship of the drug
and provide an adequate basis for physician labeling(ClinicalTrials.gov & FDA)
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VII.B.1.c
What is the last date the final subject/participant will undergo an intervention (i.e. the last study visit by any subject) as required by the
protocol?
08/31/2024
VII.B.2
Does this project involve a drug washout (asking subject to stop taking any drugs s/he is currently taking)?
No
VII.B.6
Will any subjects receive a placebo in this study when, if they were not participating, they could be receiving an FDA-approved treatment
for their condition?
No
VII.B.11
Is there a separate, written protocol that will be submitted in addition to this IRB New Project form? (Note: a grant application is not considered
to be a protocol)
No
VII.B.18
Does this project involve testing the safety and/or efficacy of a medical device?
No
VII.C. Project Description (C)
VII.C.1
Does this project involve any research on genes or genetic testing/research?
No
VII.D. Project Description (D)
VII.D.1
Check all materials/methods that will be used in recruiting subjects (you will need to attach copies of all materials at the end of the application):
Website - https://microvascularphys.lab.uiowa.edu/research-studies https://clinicaltrials.uihealthcare.org/studies/angiotensin-ii-receptor-
inhibition-improve-microvascular-function-women-who-have-had https://iowacity.momcollective.com/
https://www.facebook.com/iowacitymoms/ https://www.instagram.com/iowacitymoms/ https://twitter.com/AnnaStanhewicz?t=x574TViYU-
Nuc9ryBH8Mdw&s=09
Letter -
Advertisements -
Posters -
E-mail -
Existing Registry/database - We will recruit participants through the Maternal Fetal Tissue Bank (IRB#200910784). We will obtain the
contact information and pregnancy history of the registry participants and reach out to eligible volunteers with the approved recruitment
materials (email, flyer, phone call).
Research Match.org -
VII.D.1.a
Will any of the materials/methods below be used by researchers (or their colleagues) to recruit subjects into this study?
the potential subject is a patient OR
use of any information considered to be Protected Health Information (PHI) OR
review of patient/clinic records be used in recruiting subjects
Yes
VII.D.1.b
Describe source of records
Patient EPIC records will be reviewed and screened for suitability. Potential subjects name, contact information, age, and pregnancy history
will be reviewed. This will be accomplished by starting with a TriNetX exchange utilizing ICD9 and 10 codes and inclusion criteria to obtain
MRN.
VII.D.1.c
Select all Private Identifiable Information (PII) or Protected Health Information (PHI) accessed and used for this study (select all that
apply)
Identify types of PHI accessed
Type of PHI
Data source
Name
Street address
City
County
Precinct
Zip code
Geocodes smaller than state
Date of birth, ages > 89 years of age
Diagnosis dates
Procedure dates
Admission or discharge dates
Telephone numbers
Phase IV trials – studies of FDA-approved drugs to delineate additional information including the drug’s risks, benefits, and
optimal use(ClinicalTrials.gov & FDA)
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Type of PHI
Data source
Fax numbers
E-mail addresses
Social Security number
Medical record number
Health plan beneficiary or account numbers
Certificate/license numbers
Vehicle identifiers and serial numbers or license numbers
Device identifiers or serial numbers
Web URLs
Internet Protocol (IP) address numbers
Biometric identifiers including finger/voice prints
Full face photographic images or any comparable images
None of the above
VII.D.2.a
List ALL of the variables, including any identifiers not previously entered or links to identifiers you plan to obtain/use for purposes of this
study. (The information accessed should be the minimum data variables necessary for performing the desired analysis.)
Name, age, pregnancy history (including preeclampsia diagnoses in the past 5 years), pregnancy status, and current medication use. We will
also need to look at data elements that correspond with our exclusion criteria including skin diseases, current tobacco use, diagnosed or
suspected hepatic or metabolic disease including chronic kidney disease (CKD) defined as reduced eGFR < 60 mL/min/1.73m2, statin or
other cholesterol-lowering medication, current antihypertensive medication, history of hypertension prior to pregnancy, history of gestational
diabetes, currently pregnant or planning to become pregnant in the next 6 months, currently breastfeeding, body mass index <18.5 kg/m2,
allergy to materials used during the experiment.(e.g. latex), known allergies to study drugs.
VII.D.3
Describe why you could not practicably recruit subjects without access to and use of the information described above
The study requires the subject to meet very specific inclusion/exclusion criteria on their diagnosis. It is easier on the subject to determine this
by reviewing their medical records. It will save the subject the time and effort coming to the study site just to learn the do not qualify based
on current information.
VII.D.4
Describe why you could not practicably obtain authorization from potential subjects to review their patient or clinic records for
recruitment purposes.
Without reviewing the medical record information pertaining to inclusion/exclusion criteria we would not be able to identify subjects who
may qualify. By reviewing the potential subject’s medical record and identifying possible inclusion/exclusion criteria, the study team will be
able to determine if a subject has a possibility of qualifying which may save the subject and study team the time and effort to participate in a
visit that may result in the subject not qualifying. Also, it would not be practicable to approach all individuals presented at the clinic to ask if
their medical record could be reviewed to determine eligibility for the research.
VII.D.5
Describe plans to protect the identifiers from improper use or disclosure
We will only collect the minimum amount of information needed to determine eligibility. We will review the information visually first. All
information will be kept in a study specific folder only accessible to study staff. Once the subject qualifies, all data is collected under the
study specific ID. Names and the pre-screening forms of subjects that do not qualify or decline will be kept until enrollment has ended, so
that the study team does not approach them again.
VII.D.6
Describe plans to destroy identifiers at the earliest opportunity consistent with conduct of the research
Once consent is signed, the subject will be assigned a study ID. From that point on, only the study ID will be used. Once enrollment has
ceased, the names and pre-screening forms of potential subjects that did not enroll in the study will be destroyed by secure shred.
VII.D.7
Does the research team agree that the requested information will not be reused or disclosed to any other person or entity, except as
required by law, for authorized oversight of the study, or for other research for which the use or disclosure of the requested information
would be permitted by the HIPAA Privacy Rule
Yes
VII.D.8
Will a member of the research team discuss the study with the subject in person prior to the subject agreeing to participate?
Yes
VII.D.9
Describe the physical location where the consent process will take place:
The research staff will discuss the study with potential subjects in a conference room or exam room in the ICTS clinical research unit or in
the research lab (118 PSRB).
VII.D.10
Will a member of the research team discuss the study with the subject by phone prior to the subject agreeing to participate?
Yes
VII.D.11
Describe:
Research staff will discuss the project over the phone with individuals who are interested in participating in the study. (see pre-consent phone
script). This will take place in the research office in 118 PSRB. During the call, the research team member will answer any questions and
describe the study to the individual as needed. If the subject is still interested in participating they will be given access to the RedCap pre-
consent screening survey. If the individual continues to meet eligibility after completing this survey, they will be given information about the
study, but will not be consented over the phone. If the subject agrees, they will come to either the clinical research unit or 118 PSRB and be
consented and proceed with Visit 1.
Also, the study team will use TriNetX exchange utilizing ICD9 and 10 codes and inclusion criteria to obtain MRNs of individuals who appear
to meet eligibility criteria. These potential subjects will be sent a letter (see recruitment letter) briefly explaining the study and asking the
potential subject to call the study team. The letter will also state that a phone call will be attempted up to three times to the potential subject
two weeks following the letter being sent if the study team does not hear from the potential subject. In that phone call, the subject will be
asked if they are interested in hearing about a study they may qualify for. If they are interested, the study team will explain the study in detail,
including all study procedures and time commitments (see pre-consent phone script). If the potential subject decides they want to proceed
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they will be asked questions from the pre-screening form and if subjects appears they might qualify, an appointment will be scheduled for
consent and screening visit as described in the above paragraph.
VII.D.12
Who will be involved in the consent process (including review of consent document, answering subjects' questions)?
Name
Consent Process Involvement
Anna Reid-Stanhewicz, PHD
Yes
Adam Corkery, PHD
Yes
Vincenzo Dimarco, High School
No
Alyssa Engels, High School
No
Ashley Faber, High School
No
Katharine Geasland, BSN
No
Claire Goebel, BA
Yes
Diana Jalal, MD
No
Isabel Klimowicz, High School
No
Ruda Lee, MS
Yes
Maddie Marino, High School
No
Grace Maurer, MS
Yes
Leah Patton, High School
No
Gary Pierce, PHD, MS
No
Bomi Ryang, BS
No
Kelsey Schwartz, BS
Yes
Nikolas Soofi, High School
No
Amy Marie Stroud, MSN
No
Olivia Taeger, High School
No
Lizzy Wetzel, High School
No
Ellie Wilson, High School
No
VII.D.15
Check all materials that will be used to obtain/document informed consent:
Consent Document
Consent Summary (or Key Information Sheet)
VII.D.16
Are you requesting a waiver of documentation of consent (either no subject signature or no written document)?
No
VII.D.19
Before the subject gives consent to participate are there any screening questions that you need to directly ask the potential subject to determine
eligibility for the study?
Yes
VII.D.20
List any screening questions you will directly ask the potential subject to determine eligibility.
Eligibility Survey: (see attached pre-consent online survey) This survey will be administered via REDCap link delivered by email.
Participants will be invited to complete a survey to determine their eligibility.
If subjects' responses to the online screening survey deem them eligible, they will be contacted by a member of the research team via phone
to confirm their answers to the pre-consent online survey, answer additional questions, and schedule visit 1.
VII.D.21
Will you keep a screening log or other record that would include information on people who do not enroll in the study?
Yes
VII.D.22
Describe the information being collected and the purpose for keeping this information.
The following information will be collected in a screening log:
1. Subject's name
2. Age
3. How they heard about study
4. Date that they contacted the study
5. How they contacted us (phone/email)
6. Date of phone screening
7. Phone number
8. Email address
9. Pass online screening; yes or no
10. If did not pass online screening, reason?
11. Pass phone screen? Yes or No
12. If did not pass phone screen, reason?
13. If passed phone screening, date of consent
14. Signed informed consent
Contact information is required to contact the subjects after the phone screening in case the research staff needs to reschedule Visit 1 or for
follow up if the subject does not show for the Visit 1. Because this study is recruiting using mass email, subject information including a brief
description why they were deemed ineligible (i.e. health history, medication, breastfeeding) will be kept to prevent making contact twice with
an individual who is ineligible. Information on why a potential subject is ineligible/not passing the phone screening is to report to NIH and to
monitor our recruiting progress. Information on how the subjects heard of the study will help the research team understand the most
successful methods for advertising for the study.
VII.D.23
Will this information be shared with anyone outside the UI research team members?
No
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VII.D.25
After the subject agrees to participate (signs consent), are there any screening procedures, tests, or studies that need to be done to determine if
the subject is eligible to continue participating?
Yes
VII.D.26
List and describe screening
Complete the additional info survey (see attached RedCap document "additional info survey") for study records
Medical history and physical exam
Resting blood pressure and heart rate
Standard blood chemistries (lipids, complete blood count, basic metabolic panel, liver enzymes)
Urine pregnancy test
VII.D.27
Discuss how much time a potential subject will have to agree to consider participation and whether or not they will be able to discuss the study
with family/friends before deciding on participation.
There is no time limit for the subject to agree to consider to be in the study as long as the study is actively recruiting subjects and they are still
eligible. Subjects are allowed to discuss the study with family/friends before deciding on participation.
VII.D.28
How long after the subject agrees to participate do study procedures begin?
The procedures in visit 1 (screening visit) can occur on the same day as consent. The experimental visits (pickup and begin oral treatment) will
begin within 1-2 weeks or less of visit 1.
VII.D.29
Provide a description of the enrollment and consent process for adult subjects
Describe each study population separately including control population
Include when recruitment and consent materials are used
Use 3rd person active voice “The Principal Investigator will identify subjects. For example, the principal investigator will identify
potential subjects, the study coordinator will discuss the study with subjects over the telephone and schedule the first study visit, etc...”
Describe the steps that will be taken by the research team to minimize the possibility of coercion or undue influence during the consent
process
The subjects will consist of healthy women (age 18 and older) who have delivered a baby within the past 5 years and had preeclampsia during their
pregnancy, but were free of cardiovascular or metabolic disease prior to pregnancy. These subjects will be enrolled and complete losartan and
placebo treatments in a double-blind randomized crossover design. The PI and research staff will recruit subjects from Johnson county and
surrounding areas via advertisements, flyers, emails, The UI mass-email system, newspaper and newswire ads, Research Match.org, obtaining
contact information from the Maternal Fetal Tissue Bank (MFTB) registry, utilizing TriNetX (discussed in more depth below), and posting on the
UIHC website for research volunteers. Recruitment materials (attached MFTB recruitment letter) will be sent to women registered with the MFTB
who fit our inclusion criteria and have consented to be contacted for future studies. The UIHC Clinical Trials and Research Website will have this
research study available as a listed research study for potential research subjects to find out more information and express interest in participating.
Additionally, paid advertisements (see attached IC Mom Ad) will be posted on the Iowa City Moms website and social medias. These
advertisements when clicked will link to the study's page on the UIHC Clinical Trials and Research website.
All potential subjects will be asked to contact the research staff via phone or email. A study team member will then contact the potential participant
by phone to complete the phone screening and schedule visit 1 if they are eligible and wish to participate. Subjects will be sent the consent
summary either by e-mail or postal mail (subject preference) before visit 1. Visit 1 will include a detailed description of the study and review of the
informed consent, including risks. If subjects are not able to understand the protocol and instructions for any reason, written or verbal, they are not
included in the study. Subjects are informed throughout the consenting, screening, and conduction of the study that they may discontinue their
participation at any time with no penalty to them. If the subject signs the informed consent, they are given a copy of the signed document to take
home with them.
Research staff will discuss the project over the phone with individuals who are interested in participating in the study. (see pre-consent phone
script). This will take place in the research office in 118 PSRB. During the call, the research team member will answer any questions and describe
the study to the individual as needed. If the subject is still interested in participating they will be given access to the RedCap pre-consent screening
survey. If the individual continues to meet eligibility after completing this survey, they will be given information about the study, but will not be
consented over the phone. If the subject agrees, they will come to either the clinical research unit or 118 PSRB and be consented and proceed with
Visit 1.
The study team will use TriNetX exchange utilizing ICD9 and 10 codes and inclusion criteria to obtain MRNs of individuals who appear to meet
eligibility criteria. These potential subjects will be sent a letter (see recruitment letter) briefly explaining the study and asking the potential subject
to call the study team. The letter will also state that a phone call will be attempted up to three times to the potential subject two weeks following the
letter being sent if the study team does not hear from the potential subject. In that phone call, the subject will be asked if they are interested in
hearing about a study they may qualify for. If they are interested, the study team will explain the study in detail, including all study procedures and
time commitments (see pre-consent phone script). If the potential subject decides they want to proceed they will be asked questions from the pre-
screening form and if subjects appears they might qualify, an appointment will be scheduled for consent and screening visit as described in the
above paragraph.
VII.D.37
Does the study include any form of deception (e.g., providing participants with false information, misleading information, or withholding
information about certain study procedures)?
Examples:
Procedure includes a cover story that provides a plausible but inaccurate account of the purposes of the research.
Participants will be provided with false information regarding the particular behaviors of interest in the research.
Procedures include a confederate pretending to be another participant in the study.
Participants will be told that the research includes completion of a particular task, when in fact, that task will not be administered.
Study is designed to introduce a new procedure (or task) that participants are not initially told about.
If yes, a waiver of informed consent must be requested under question IV.3.
No
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VII.E. Project Description (E)
VII.E.1
Will subjects be randomized?
Yes
VII.E.1.a
Will any subjects be blinded to which study arm they have been assigned?
Yes
VII.E.1.b
Does the protocol permit telling subjects their treatment assignment at the end of the entire study?
Yes
VII.E.1.c
Describe the circumstances under which subjects will be told what study arm they have been assigned.
After the study is completed, subjects can be told which treatment they received at which visit if they wish to
know.
VII.E.2
Describe randomization scheme/assignment including ratio such as 1:1, 2:1 etc.
Subjects will be randomized to which treatment they receive first (placebo or losartan). All subjects will complete both arms of the study.
They will be blinded to which treatment they are receiving at the time of the treatments. If they wish to know, subjects can be informed which
treatment they received at what time when they complete the study.
VII.E.3
Will any questionnaires, surveys, or written assessments be used to obtain data directly from subjects in this study?
Yes
VII.E.4
List all questionnaires, surveys, written assessments and ATTACH each one to the application. (NOTE: You are NOT prohibited from
attaching copyrighted materials to this application)
pre-consent screening survey
additional information survey
health history questionnaire
VII.E.5
Does this project involve creating any audiotapes, videotapes, or photographs?
No
VII.E.6
Provide a detailed description in sequential order of the study procedures following the consent process - DO NOT cut and paste from the
Consent Document.
Describe study populations separately if they will be participating in different procedures - include CONTROL population if applicable.
DESCRIBE:
What subjects will be asked to do/what happens in the study (in sequential order)
The time period over which procedures will occur
The time commitment for the subject for individual visits/procedures
Long-term followup and how it occurs
Visit 1 - Consent and Screening (approximately 1 hour)
The PI or research staff explain the study and go over the informed consent with the participant. After the participant signs the informed consent,
the PI or research staff performs the physical screening that includes urine pregnancy test, heart rate (HR), blood pressure (BP), height, waist
circumference, and weight measurements. The participant fills out the health history questionnaire and confirms that they are using an effective
form of birth control. A research nurse performs or approved laboratory personnel standard venipuncture to obtain blood (total = 7.5ml blood) for
complete blood count (CBC), chemistry analysis, and lipid profile to be measured at UIHC pathology labs. The subject provides a urine sample for
the measurement of urine proteins which will be measured by the UI Diagnostic Lab.
Visits 2 and 5- Pick up study medications (approximately 15 minutes)
The PI or research staff give the participant study medication (losartan or placebo). The PI or research staff goes over the instructions for taking the
study medication which includes how many pills to take and at what times of day, potential side effects, and who to call if they have questions or
problems while taking the medication.
Visits 3 and 6 - Pick up 24 hour blood pressure monitor (approximately 15 minutes)
The PI or research staff instrument the participant with the 24 hour blood pressure monitor. The PI or research staff goes over the instructions for
wearing the monitor.
Visits 4 and 7 - Experimental visits (approximately 4 hours each)
Note: prior to coming to PSRB for the experimental visits, subjects take the oral study medication for 6 weeks. Subjects will ingest 1 pill per day.
After the first study visit, subjects will undergo a washout period of at least 14 days in which they do not ingest any study medication, before
beginning the same 6 week regimen of the other treatment.
In the event of an experimental failure (e.g. equipment stops working, building power outage during study visit, etc) subjects may be asked to
repeat a trial.
Experimental procedures
24 hours before the study visit, subject will be instrumented with a 24 hour blood pressure monitor to wear home for 24 hours. Subject will return
the blood pressure monitor to the investigators when they come in for the experimental visit.
Subjects will come to the CRU or 118 PSRB where a research nurse or approved laboratory personnel performs a blood draw (14.5 ml, < 1
Tablespoon) for substances of interest (e.g. inflammatory cytokines) and immune cell activity, and blood chemistry. The subject provides a urine
sample for the measurement of urine proteins which will be measured by the UI Diagnostic Lab. Then the rest of the study visit occurs in 118 PSRB
for the experiment (Pulse wave velocity and intradermal microdialysis).
Pulse wave velocities (PWV) on Carotid-femoral and carotid-brachial: Carotid-femoral artery PWV, the ‘gold standard’ in vivo assessment of aortic
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stiffness in humans, will be assessed by applanation tonometry using the Sphygmocor pulse wave analysis system (AtCor Medical, Inc.) as
previously described by the PI.45-47 After 10 minutes of supine rest, carotid, brachial, and femoral artery pulse waveforms will be recorded non-
invasively by sequentially recording of carotid, brachial, and femoral artery pulse waveforms with a hand-held transducer for 20 seconds. Pressure
waveforms are gated to the 13 lead ECG R wave in order to calculate the transit time (t) between the foot of the carotid and the femoral
waveforms.85, 86 The carotid-femoral and carotid-brachial transit distance (CFTD) is estimated between the 2 anatomical sites as the difference
between the suprasternal notch (SSN) to carotid (SSN-C) and femoral (SSN-F) sites. Thus, the CFTD=(SSN-F)-(SSN-C) and PWV calculated as
CFTD/t. This approach accounts for parallel transmission of the pulse wave up the brachiocephalic and carotid arteries, and simultaneously along
the aortic arch using the SSN as a fiducial point where parallel transmission begins (e.g., bifurcation site of aortic arch/brachiocephalic artery).
Microdialysis Probe Insertion: (NOTE: The intradermal microdialysis procedure used here is identical to the one approved in IRB #201909818)
Please see the attached "intradermal microdialysis" document for general information about intradermal microdialysis, schematic representation of
the procedure, and references. The researchers place a tight band around the forearm so they can visualize veins. For each MD site, they make pairs
of pen-marks on the arm 2.5 cm (1 inch) apart and away from veins. They remove the tight band. The MD tubing enters and exits the skin at the
marks. The researchers clean the arm with povidone iodine and alcohol, and place an ice bag on the site for 5 minutes to numb the skin. Then they
insert a thin needle into the skin at each entry mark. The needle’s tip travels between the layers of skin for 2.5 cm (1 inch) and exits the skin at the
matching exit-mark. They thread the microdialysis tubing through the needle and then withdraw the needle leaving the tubing in the skin. Any
hyperemia related to the insertion subsides in about 60 minutes. When the hyperemia induced by inserting the tubing in the skin subsides, the
experiment begins. During this time Lactated Ringer’s perfuses the tubing. The researchers tape a fiber optic laser Doppler flowmeter probe and its
holder over each microdialysis site. The researchers control the temperature of the holders. The holders start at 33°C (91.4°F). During the
experiment, the computerized data acquisition system records heart rate, skin blood flow, and skin temperatures continuously. The researcher and/or
an automated critical care monitor measures blood pressure at 5-7 minute intervals.
Acetylcholine, Angiotensin II, and Norepinephrine Dose Responses: The intradermal microdialysis probes are randomly numbered 1 - 4 and
assigned
to receive doses of acetylcholine with or without L-NAME (probes 1 and 2), angiotensin II (probe 3) or norepinephrine (probe 4).
Acetylcholine Dose Response: Microdialysis Probe 1. Lactated Ringer’s only
Microdialysis Probe 2. Lactated Ringer’s + L-NAME
Angiotensin II Dose Response: Microdialysis Probe 3. Lactated Ringer’s only
Norepinephrine Dose Response: Microdialysis Probe 4. Lactated Ringer's only
When the skin blood flow is stable, the researchers perform a 10-minute baseline set of measurements. The researchers add identical concentrations
of acetylcholine to the perfusate in probes 1 and 2 and Angiotensin II to the perfusate in probe 3 and Norepinephrine to the perfusate in probe 4. At
5-minute intervals, they increase the concentration of acetylcholine, angiotensin II or norepinephrine in the perfusates. The participant receives 10
different concentrations of acetylcholine and 9 different concentrations of angiotensin II or norepinephrine. After perfusing the last concentrations,
the researchers warm the temperature controllers to 43°C (108°F) and switch perfusates at all sites to lactated Ringer’s for about 30 minutes. After
30 minutes they add SNP to the perfusates for approximately 5 minutes. Heating and SNP perfusion causes maximum vasodilation at the
microdialysis site. The researchers then de-instrument the subject, remove the microdialysis fibers, and apply
sterile dressings. The subject is given verbal and written instructions for how to care for the microdialysis sites. The researcher measures final vitals
before the subject departs. At the end of visit 2, the subject is given instructions for the 14 day washout period. The subject may be given the pills
for the second treatment at the end of visit 2(replacing visit 4), along with instructions for when and how to take the pills prior to study visit 5.
VII.E.7
Will you attempt to recontact subjects who are lost to follow-up?
No - followup is not required in this study
VII.E.9
Will subjects be provided any compensation for participating in this study?
Yes
VII.E.10
Cash
No
VII.E.11
Gift Card
No
VII.E.12
Check
Yes
VII.E.13
Who will be providing the research compensation check to the subject?
Accounting Services directly via the e-Voucher system
VII.E.16
Other
Yes
VII.E.17
Describe:
Parking vouchers will be provided during study visits.
VII.E.18
If you plan to compensate subjects using cash, checks or cash equivalent does your unit have a Cash Handling Procedure in
place that has been approved by Accounting Services?
Yes
VII.E.19
Describe the compensation plan including
Compensation amount and type per visit
Total compensation
Pro-rating for early withdrawal from study
Pre-treatment: $30 per treatment ($5/week for 6 weeks)
24 hour blood pressure monitor: $10
Experimental visits: $100 per visit ($15/microdialysis probe + $10 for pulse wave velocity measurements + $7.50/hour for completing the
experiment)
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Total for completing the study: $280 (two pre-treatment periods, two 24 hour blood pressure monitors, two completed study visits)
Parking pass for time involved at study and screening visits.
Pro-rating: Subjects can receive payment for pre-treatment and experiments not completed. The researchers pay an amount of money equal to
the part completed. For instance, if a subject completes half of Experiment 1, the subject receives $15.00 for each probe inserted plus $7.50
for each hour they completed. The researchers may ask subjects to repeat a trial. If subjects agree to repeat a trial, they receive payment for
the repeated trial as stated above.
VIII. Risks
VIII.1
What are the risks to subjects including
- emotional or psychological
- financial
- legal or social
- physical?
Physical Risks:
Microdialysis: Intradermal microdialysis is a specialized research technique. Dr. Stanhewicz is highly skilled in this technique and has been using
the procedures in this protocol (including fiber placement, perfusate preparation, subject monitoring, and fiber removal) for over 10 years with no
adverse events and have been reviewed and approved by Dr. Diana Jalal at the University of Iowa.
Cutaneous microdialysis commonly causes some pain and bruising similar to that experienced during venipuncture. There is usually no pain after
the probe is in place. The participant may experience mild pain while the researchers remove probe. Minor bleeding may occur. As with any event
that breaks the skin, infection is possible. However, no participants in any of the researchers’ prior experiments have reported infection. In the
unlikely event in which the membrane breaks during removal leaving an isolated piece of membrane under the skin, they treat the piece of
membrane in a manner similar to that for a splinter in the skin. In this case, trained personnel make a superficial incision for removal. Such an event
has never occurred in any projects overseen by Dr. Stanhewicz.
Microdialysis delivers small amounts of pharmacological substances to a nickel-sized area of the skin. Therefore there are no individual risks
associated with the drugs perfused through the fibers (acetylcholine, L-NAME, angiotensin II, norepinephrine, SNP, lactated Ringer's). The small
quantities used and the extremely localized administration during microdialysis does not produce systemic effects. To the researchers’ knowledge,
there are no reports of long or short-term side effects of these substances administered through microdialysis. The chance of adverse reactions to
these substances is extremely small given the minute amount delivered to the a very small area of skin, the lack of adverse reactions to similar
amounts delivered via MD in many other studies, and lack of adverse effects in human cell cultures. There is a slight chance of allergic reaction to
these substances that could produce redness, itching, rash, and/or swelling.
Local Heating: The local heating control unit (Moor Instruments) precisely controls and monitors the temperature of the heated probe holders used
with the Laser Doppler Flowmeter. The system has programmed maximum temperature limits. To determine the maximal SkBF, the researchers
increase the temperature of the heating units slowly (about 0.1°C every 1 second). The skin feels very warm but not painful. Local heating causes
temporary redness of the skin that subsides within several hours. This technique is very unlikely to produce long-term ill effects.
Povidone Iodine: Hospitals and researchers use povidone iodine to clean and sterilize the skin. Participants could be allergic to iodine. An allergic
reaction could cause redness, itching, rash, and/or swelling. Staff use only alcohol on participants with iodine allergy as identified during screening.
Tape and adhesive disks: Participants could be sensitive to the adhesive of the tape, ECG electrodes, and double-sided adhesive disks used in the
study causing redness, rash, tenderness, and/or itching. The researchers remove these items carefully.
Blood draws: Potential risks associated with obtaining blood samples are minimal but include slight bruising, pain, a temporary
feeling of faintness, and/or a small risk of infection. All blood draws will be performed by a research nurse or team member trained in
drawing blood.
24-hour blood pressure measurement: There are no known or foreseeable risks associated with 24-hour blood pressure monitoring. The hourly cuff
inflation may be disruptive to the participants activities of daily life. The cuff may cause mild pressure discomfort when inflating.
Pulse wave velocity (PWV): There are no known or foreseeable risks associated with the use of applanation tonometry for PWV. EKG patches are
used for the monitoring and may cause minor skin irritation.
Losartan Pharmacotherapy: Losartan is a commonly prescribed hypertensive medication that works by blocking the angiotensin II type 1 receptors
located on the vascular tissues. The most common but least serious side effects of losartan are cold symptoms (stuffy/runny nose, sneezing, sore
throat), mild dizziness, back pain, and diarrhea.
Injury or death of unborn babies: Losartan is classified as pregnancy category D. Studies in pregnant women have demonstrated risk to the fetus.
Pregnancy or planning to become pregnant are exclusion criteria in this study.
Low blood pressure (hypotension): Use of an anti-hypertensive medication may cause a decrease in blood pressure that leads to dizziness, faintness,
or lightheadedness, especially when going from lying down to standing up. This can be treated by stopping the medication.
For people who already have kidney problems, losartan may lead to worsening of kidney function. Abnormal kidney function is an exclusion
criteria for this study. We screen participants for markers of kidney function, and repeat those measurements (blood chemistry) at the end of each
treatment period.
Swelling in feet, ankles, or hands, or unexplained weight gain: In some patients, losartan use may lead to edema. This can be treated by stopping the
medication.
Allergic reaction: Subjects could have a mild or severe allergic reaction including hives; difficult breathing; swelling of the face, lips, tongue, or
throat. We exclude subjects who have a known allergy to losartan.
Emotional or Psychological risks: There are no foreseeable psychological risks with this study.
Social Risks: There are no foreseeable social risks with this study
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Legal Risks: There are no foreseeable legal risks with this study.
Loss of confidentiality is possible.
VIII.2
What have you done to minimize the risks?
If applicable to this study ALSO include:
How you (members of your research team at Iowa) will monitor the safety of individual subjects.
Include a description of the availability of medical or psychological resources that subjects might require as a consequence of
participating in this research and how referral will occur if necessary (e.g. availability of emergency medical care, psychological
counseling, etc.)
Note: All investigational substances used in these protocols are used with general Physician Oversight (see attached Standard Operating Procedures
document)
Risks Associated with Losartan Treatment: Because of the risk of injury or death to unborn babies we perform a pregnancy test on all subjects
before administering losartan and council participants on the risks of becoming pregnant while taking the medication. During the study if a subject
experiences side effects that are life threatening, the subject will be instructed to call 911. If the subject experiences any mild but tolerable expected
side effects such as cold symptoms, mild dizziness, back pain, or diarrhea, they will be asked to keep a log of these including the date, the duration,
and the severity by rating on a scale of 1 (mild) to 10 (severe/intolerable). If the subject feels the side effects are uncomfortable or intolerable, then
they will be instructed to call the Research Associate (Claire Goebel) or Dr. Stanhewicz. The Research Assistant or Dr. Stanhewicz (although she
will be blinded) will instruct the subject to skip the next dose and if the symptoms/side effects have resolved at time of next dose (in 24 hours), they
will be instructed to take the next dose. Dr. Stanhewicz will consult with Dr. Jalal if necessary. If symptoms do not resolve or worsen at time of next
scheduled dose, the subject will be instructed to discontinue the treatment. The subject will be withdrawn from the study procedures but will be
followed up as necessary.
Risks Associated with Intradermal Microdialysis: Research techniques are only performed by personnel who are trained and approved by Dr.
Stanhewicz to complete these procedures. Dr. Stanhewicz has 10 years of experience utilizing intradermal microdialysis without unanticipated
adverse events. All laboratory personnel are trained in CPR and basic first aid. In the event of a life threatening emergency, lab personnel call 911.
The Field House is equipped with AED and lab personnel are trained in how to use them if necessary. Prior to placing the microdialysis fibers, the
researcher puts on sterile gloves and cleans the skin with iodine and alcohol to reduce the risk of infection. The researchers apply ice to the skin for
5 minutes before placing the microdialysis fibers to reduce any pain associated with placement. Once the fibers are in place, research personnel
constantly monitor subjects for adverse reactions (e.g. pain, itching, redness, swelling) to the microdialysis fibers or the perfusates. Participants are
never left unsupervised with the fibers in place. An automated monitor measures blood pressure every 5 minutes and constantly records heart rate.
The researchers clip the ends of the fibers and clean them with an alcohol swab before removing them from the skin to reduce the risk of infection.
They stop any bleeding by applying mild pressure to the sites with a sterile gauze pad. The researchers apply a clean, sterile bandage to the area
before the participant leaves. Participants are given verbal and written instructions on how to care for the sites and to call Dr. Stanhewicz or the
research nurse if they have any questions or concerns about the sites after they have left the study visit.
Risk of loss of confidentiality: The investigators collect the minimum amount of confidential data in order to complete the aims. All subjects are
assigned a code and data and specimens are collected using the code only. The only time subject names and codes appear together is on their file
which is kept in a locked cabinet in the PI's office. Only IRB approved personnel have access to these files. All data files are stored on password
protected computers and servers and only IRB approved personnel have access. Extensive details on how the risk of loss of confidentiality is
minimized are provided in section X. Privacy and Confidentiality.
VIII.3
Does this study have a plan to have an individual or committee review combined data from all subjects on a periodic basis (such as summary or
aggregate safety and/or efficacy data)?
Yes
VIII.4
Describe the plan to review combined data from all subjects, such as summary or aggregate safety and/or efficacy data. Include the
following:
Describe what data will be summarized and reviewed
Describe how frequently data will be reviewed.
The local Data Safety Monitoring Board performs bi-annual reviews of the study protocol, subject enrollment information, and aggregate
data collected to that point. The DSMB does not have access to individual identification of subjects. The DSMB then makes
recommendations regarding the progress of the study.
VIII.5
Will overall safety monitoring be performed by individual(s)/committee at The University of Iowa. (NOTE: If this study involves more
than minimal risk, in most cases these should be individuals who are not members of the study research team.)?
Yes
VIII.6
List names:
Mark Santillan, MD; Melissa Swee, MD; Bridget Zimmerman, PhD
VIII.7
Will overall safety monitoring be performed by individuals or committee not associated with The University of Iowa (such as a study Data
Safety Monitoring Board)?
No
IX. Benefits
IX.1
What are the direct benefits to the subject (do not include compensation or hypothesized results)?
The study procedures and/or findings do not provide direct benefits to the subjects participating in the study. Subjects receive a medical screening
that could inform them about their health. They learn their blood pressure and blood cholesterol levels. This is important knowledge. High blood
pressure and blood cholesterol contribute to many serious health problems. We advise those with high blood pressure or blood cholesterol to
follow-up with a health care provider. They also learn of the connection between
preeclampsia and cardiovascular disease.
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IX.2
What are the potential benefits to society in terms of knowledge to be gained as a result of this project?
Preeclampsia, a disorder of pregnancy effecting ~5-8% of pregnancies in the United States, and ~8 million pregnancies worldwide. Otherwise
healthy women who develop preeclampsia during pregnancy have 2-4 times greater risk for developing cardiovascular disease later in life.
Cardiovascular disease is the leading cause of death among women worldwide, a fact lending even more gravity to the need for elucidating the
mechanisms mediating the vessel dysfunction associated with preeclampsia and the increased risk for cardiovascular disease. The information to be
gained is essential to the understanding of the related cardiovascular pathology. This knowledge could suggest and aid the development of novel
therapeutic strategies for the management of risk in this population.
X. Privacy & Confidentiality
X.1
What are you doing to protect the privacy interests of the subjects?
The minimum amount of data necessary to complete the aims will be collected during the study. The informed consent process will be conducted in
a private exam room in the CRU or the research office in 118 PSRB with the door closed. All screening and experimental procedures will be
conducted in the laboratory in 118 PSRB with the door closed and locked. Only personnel directly involved in the study will be allowed in the
rooms.
X.2
Are you collecting the Social Security Number of any subjects for any purpose?
No
X.4
How will information/data be collected and stored for this study (check all that apply):
Biologic samples (blood draws, check swabs, saliva samples, tissue samples, etc.) - Blood samples will be sent to the UIHC pathology lab for
analyses. Remaining biological specimens, such as blood, will be labeled with subject code, date collected and IRB protocol number and
transported to the PIs laboratory (118 PSRB) in a secure unbreakable biohazard container. Samples will be stored in the PIs laboratory in a
-80C freezer in 111 PSRB. All samples will be labeled with date collected and subject ID code only. No personal identifiable information will
be labeled on the sample. Only the PI and her research staff will have access to the samples.
Name - Anna Reid-Stanhewicz
Title - Assistant Professor
University Job Classification - Faculty/Staff
Electronic records (computer files, electronic databases, etc.) - Electronic records (computer files, electronic databases, etc.) - Data will be
entered using subject ID code into the ICTS REDCap web-based database application that is password protected. No personal identifiable
data will be entered. Only research staff on the IRB approved study will be allowed access this database. The ICTS REDCap staff are
responsible for maintaining security of the data. Some data using subject ID code will also be entered into a Microsoft Excel and SPSS
datasheets that will be kept in a shared server for CLAS that is password protected. Only research staff on the IRB approved study will have
access to the folder the study on the server.
Name - Bryan Ringen
Title - IT Support Consultant
University Job Classification - Faculty/Staff
Paper/hard copy records (hard copy surveys, questionnaires, case report forms, pictures, etc.) - Most of the data are coded and do not contain
personal identifying information. Some data will temporarily contain the subject’s name, address, and/or telephone number (Phone Interview
Form). Documents allowing identification of participants do not leave our labs and are only available to authorized persons. Only authorized
personnel may access the lab computer. Data forms containing identifiable information are shredded when no longer needed (within 5 years
after publication of results). We keep data in the laboratory in locked cabinets, the password-protected folder on the secured University of
Iowa RDSS server, and on password-protected computers maintained in locked laboratory rooms. Only authorized personnel have access.
Coded data shared with unauthorized persons cannot be traced to individuals. The list linking code numbers to participants is not shared with
unauthorized persons and destroyed when the project is completed and within 5 years of publication of the data. Screening data from subjects
who are not accepted into the study are shredded when the project ends. Subjects may give permission to have their contact information
retained in the investigator’s secured files if they wish to be considered for participation in future studies. After we complete the study, we
remove all identifiers from the data and store the data indefinitely. Individual data may be used without identifying the subject to illustrate
representative responses. Any hard paper copy of subject lists or data will be kept in a locked cabinet in the locked office of the PI. Subjects
will be assigned a code for the study. Files will be labeled with this code for confidentiality. Study data including laser-Doppler flowmetry
data will be stored on password protected computer hard-drives and password protected server folders which are only accessible to research
team members via password. Subject confidentiality will be maintained in all presentations and publications and information/records
pertaining to subject participation in the research project will not be released without prior authorization by the subjects.
X.5
Do the confidentiality protections indicated above allow only members of the research team to access the data/specimens?
No
X.6
Describe
The -80C freezer in 111 PSRB is a shared wet lab space. The door to this lab space is kept locked but those with keys to the shared lab space
would be able to enter the room. Individuals with key access to 111 PSRB include:
Nathaniel Jenkins, PhD
Mark Flores, BS
Laura Schwager, BA
X.7
Does your study meet the NIH criteria for a Certificate of Confidentiality or will you be applying for Certificate of Confidentiality?
Yes
X.8
If yes, provide rationale:
Per Section 2012 of the 21st Century Cures Act as implemented in the 2017 NIH Certificates of Confidentiality Policy, all ongoing or new
research funded by NIH as of December 13, 2016 that is collecting or using identifiable, sensitive information is automatically issued a CoC.
XI. Data Analysis
XI.1
Describe the analysis methods you will use, including, if applicable, the variables you will analyze
The primary outcome variable will be cutaneous vascular conductance, which is calculated from laser-Doppler flux/mean arterial pressure. Three-
way repeated measures ANOVA (treatment, MD site, dose) will be used to examine systemic treatment differences (losartan vs. placebo) and local
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microdialysis treatment differences across the doses of pharmacological stimuli. Appropriate post-hoc analyses with corrections for multiple
comparisons will be performed when main effects are identified, including potential confounding variables as covariates. Paired t-tests will be used
to examine systemic treatment differences on pulse wave velocity.
XI.2
Provide the rationale or power analysis to support the number of subjects proposed to complete this study.
Based on previous data examining chronic pharmacological intervention strategies we calculate that 10 subjects will be necessary to detect an effect
size of 15% between microdialysis sites (1 sample RMANOVA, power=0.08, a=0.05). Based on the duration of the intervention and prior
experience, we anticipate that ~5 subjects will screen but not be eligible and of those that enroll, ~5 will drop out of the intervention, therefore, we
suggest a total sample of 20 subjects.
XII. Future Research
XII.1
Do you wish to keep any information about subjects involved with this research project so that members of the current research team may
contact them in the future for your own research projects?
Yes
XII.2
Do you wish to keep any information about subjects involved with this research project so that other researchers may contact them for future
research?
No
XII.3
List the data or information you will keep:
Name
Race/ethnicity
Age
Pregnancy history
Contact information (mailing address, e-mail address, phone number)
XII.4
Does this project involve storing any data, tissues or specimens for future research?
Yes – contribution for future use is optional
XII.5
Describe how you will keep track of those who consent to future use and those who do not and how you will prevent future use for
those who do not consent.
We will keep track of who consents to future use on our enrollment log.
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ICF_001.pdf: 
Document: Informed Consent Form  
Study Title: Angiotensin II Receptor Inhibition to Improve Microvascular Function in 
Women Who Have Had Preeclampsia 
NCT# 04632589 
Document Date(s): 
 
Updated and approved by IRB 7/19/2024 
 


FOR IRB USE ONLY 
APPROVED BY: IRB-01 
IRB ID #: 202006148 
APPROVAL DATE: 07/19/24 
 
 
 
Page 1 of 12 
INFORMED CONSENT DOCUMENT 
 
Project Title: 
Angiotensin II Receptor Inhibition to Improve Microvascular Function in Women 
who have had Preeclampsia 
 
Principal Investigator: 
Anna Stanhewicz, PhD 
 
Research Team Contact: 
Anna Stanhewicz, PhD   
W: 319-467-1732 M: 845-551-3869 
email: anna-stanhewicz@uiowa.edu 
 
 
Claire Goebel (Research Associate) 
 
 
 
 
W: 319-335-1914 
 
 
 
 
email: claire-goebel@uiowa.edu 
 
This consent form describes the research study to help you decide if you want to participate.  This form 
provides important information about what you will be asked to do during the study, about the risks and 
benefits of the study, and about your rights as a research subject.   
• If you have any questions about or do not understand something in this form, you should ask 
the research team for more information.   
• You should discuss your participation with anyone you choose such as family or friends.   
• Do not agree to participate in this study unless the research team has answered your 
questions and you decide that you want to be part of this study.  
 
WHAT IS THE PURPOSE OF THIS STUDY? 
 
This is a research study.  We are inviting you to participate in this research study because you had a 
preeclamptic pregnancy in the past 5 years. 
 
The purpose of this research study is to understand how a history of preeclampsia affects blood vessel 
function. Preeclampsia may cause harmful changes to blood vessels and lead to cardiovascular disease.  
The changes affect how the body controls blood flow.  This research study looks at blood flow and how 
a treatment for high blood pressure, losartan, affects blood flow compared to placebo in women who had 
preeclampsia. We also test the stiffness of blood vessels after losartan and placebo.  
 
This study includes the use of some research drugs in a nickel-sized area of skin on your arm 
(acetylcholine, L-NAME, angiotensin II, norepinephrine, and sodium nitroprusside). The drugs are not 
approved by the U.S. Food and Drug Administration (FDA) to treat the disease being studied in this 
research study. Acetylcholine, angiotensin II, norepinephrine, and sodium nitroprusside are considered 
investigational, which means that they have not been approved by the FDA. This study also includes the 
use of a study medication that is taken orally (losartan compared to placebo). Losartan is approved by 
the FDA to treat high blood pressure, but it is not approved by the FDA to treat blood vessels after 
preeclampsia. In this study losartan is compared to placebo.  
 
 


FOR IRB USE ONLY 
APPROVED BY: IRB-01 
IRB ID #: 202006148 
APPROVAL DATE: 07/19/24 
 
 
 
Page 2 of 12 
 
HOW MANY PEOPLE WILL PARTICIPATE? 
 
Approximately 20 people will take part in this study conducted by investigators at the University of 
Iowa.   
 
 
HOW LONG WILL I BE IN THIS STUDY? 
 
If you agree to take part in this study, your involvement will last for approximately 16 weeks. During 
those 16 weeks you will visit the UI campus 6-7 times.  
1. Screening visit  
 
up to 1 hour 
2. Pick up pretreatment 1  
15 minutes 
3. Pick up 24hr BP monitor 
15 minutes 
4. Study Visit 1  
 
up to 4 hours 
 
After study visit 1 you will have a two-week washout period where you do not take any study 
medications but you are still enrolled in the study.  
 
5. Pick up pretreatment 2 
15 minutes (can be completed at the end of study visit 1) 
6. Pick up 24hr BP monitor 
15 minutes 
7. Study Visit 2  
 
up to 4 hours 
 
In the event of an experimental failure (e.g. equipment stops working, power outage in the building 
during study visit, etc) you may be asked to repeat a trial. The decision to repeat a trial is up to you. If 
you do repeat a trial, you will be compensated for that additional trial.  
 
WHAT WILL HAPPEN DURING THIS STUDY? 
Screening: The researchers and/or Clinical Research Unit (CRU) staff perform the screening.  The 
researchers measure your height and weight, blood pressure (BP), and heart rate (HR).  They measure 
waist circumference.  You fill out a health history questionnaire. You can skip any questions that you do 
not want to answer. The CRU staff or approved laboratory personnel draws 50 ml (<4 Tbsp) of blood 
from a vein in your arm.  We send some of the blood to a lab to see if the proteins, blood cells, 
electrolytes, kidney function, etc. are within normal levels. You submit a urine sample for a pregnancy 
test and provide a urine sample for the measurement of urine proteins. We will use the information 
collected during the screening visit to determine if you are eligible to continue in the study. After the 
screening visit, if you are eligible to continue in the study you begin taking the pretreatment.  
 
Pretreatments: We assign one of the pretreatments (losartan or placebo) for you to take for 6 weeks. 
The choice of the first treatment is random. This means that whichever study treatment you receive first 
will be determined purely by chance, like flipping a coin. You will have a 50/50 chance of receiving any one 
of the study treatments first. Neither you nor the research team will know which study treatment you are 
receiving, but we will be able to get this information quickly if we need it to ensure your safety.  
a. The losartan dose is 50 mg/day. You take 1 pill each day for 6 weeks.  
b. You come to the lab to pick up the losartan or placebo  pills. You take a urine 
pregnancy test. If the test is positive we do not give you the pills and you are withdrawn 
from the study. 


FOR IRB USE ONLY 
APPROVED BY: IRB-01 
IRB ID #: 202006148 
APPROVAL DATE: 07/19/24 
 
 
 
Page 3 of 12 
 
• We do not want you to know the identity of the pill you are taking while you are active in the study. 
If you would like to know which treatments you received at each time, we can tell you after you 
complete the study.  
• After 6 weeks of taking the first pretreatment, you come to the lab for the experiments described 
below. 
• Then you take no pretreatments (washout) for at least 14 days. 
• You take the second pretreatment for 6 weeks. 
• After 6 weeks of taking the second pretreatment, you come to the lab to repeat the experiments 
described below. 
 
24 hour Blood Pressure Monitor: The day before your experiment visit you wear an ambulatory blood 
pressure monitor on your upper arm. The monitor has a cuff that automatically inflates and contains a 
sensor to take a blood pressure measurement every 30 minutes during the day and once every hour 
overnight. You remove the monitor from your arm when the 24 hours are done. You will return the monitor 
to the study team when you come for your study visit.  
 
Microdialysis Experiments:  
Before you arrive: 
If you have questions about the study, please contact us right away. You do not eat or drink 
anything containing caffeine (ex. coffee, tea, Coca Cola, chocolate) for 12 hours before the 
experiment and do not perform strenuous physical activity for 24 hours before the experiment. 
 
When you arrive:  
The researchers meet you in the Clinical Research Unit of the University of Iowa Hospital or the 
Pharmaceutical Sciences Research Building (PSRB).  We measure your blood pressure, heart 
rate, and oral temperature. You provide a urine sample for the measurement of urine proteins. 
A CRU nurse or approved laboratory personnel draws your blood. Then, the rest of the study 
visit occurs in 118 PSRB for the intradermal microdialysis experiment. 
 
Measurements: 
Blood Pressure, Heart Rate:  We measure blood pressure and heart rate throughout the 
experiment.  We apply three sticky tabs to the skin of your chest.  The tabs connect to an ECG 
machine that records heart rate.  During the experiment, we can measure blood pressure in any of 
two ways.  a)  We inflate a cuff on your upper arm while we listen at the inside of your elbow 
with a stethoscope.  b)  Likewise, an automated machine inflates a cuff on the upper arm and 
uses a sensor in the cuff to measure blood pressure. 
 
Skin Blood Flow, Skin Temperature:  We measure skin blood flow and skin temperature 
throughout the experiment.  We tape a thin probe and its holder over five sites on your forearm.  
The thin probe measures skin blood flow with a weak laser light.  The holders measure skin 
temperature.  We control the temperature of the holders.  The holders start at 34°C (93°F). At the 
end of the study, we increase the temperature of the holders from 34°C to 43°C (108°F). 
 
Pulse Wave Velocity: We measure the stiffness of your blood vessels by measuring how fast the 
pulse of blood from each heartbeat travels through your vessels. The researcher uses a small 


FOR IRB USE ONLY 
APPROVED BY: IRB-01 
IRB ID #: 202006148 
APPROVAL DATE: 07/19/24 
 
 
 
Page 4 of 12 
handheld probe placed on the surface of the skin to measure your pulse at your carotid artery (on 
your neck), your brachial artery (near your elbow), and your femoral artery (near your thigh). We 
record these pulses for 20 seconds.  
 
Microdialysis (MD): 
Overview:  MD involves placing very thin plastic tubing between the layers of your skin.  The 
largest part of the tubing is about 6 times the diameter of a human hair.  We pump fluid like that 
found in your body’s tissues (lactated Ringer’s solution) through the thin tubing.  Lactated 
Ringer’s solution is a fluid commonly used in hospital and healthcare settings in IVs. It is used to 
treat dehydration and restore fluid balance in the body.  
 
The thin tubing acts like the very small blood vessels in your skin.  There is an exchange of 
substances between the fluid in the tubing and the fluid in the surrounding tissue.  During the 
experiment, we add substances to the fluid in the tubing.  The substances can only reach a 2.5 
cm2 (0.4 inch2), nickel-sized area of skin. 
 
MD Probe Insertion:  We place a tight band around your arm so we can easily see your veins.  
For each MD site, we make pairs of pen-marks 2.5 cm (1 inch) apart and away from veins.  The 
MD tubing enters and exits your skin at the marks.  We remove the tight band.  We clean your 
arm with an orange-colored fluid and alcohol.  We place an ice bag on your arm for 5 minutes to 
numb your skin.  Then we insert a thin needle into your skin at each entry mark.  The needle’s tip 
travels between the layers of skin for 2.5 cm (1 inch).  It leaves your skin at the matching exit 
mark.  We thread the MD tubing through the needle.  Next, we withdraw the needle, leaving the 
tubing in your skin.  We prepare all MD sites in this manner.  Any redness of your skin subsides 
in about 60 – 120 minutes. 
 
Microdialysis Experiment Protocol (described below): 
Summary: We prepare 4 MD sites as described above. At first, we record baseline measurements for all 4 
sites (20 minutes). After we have collected baseline data, we change the fluid flowing through each 
microdialysis fiber at 5-minute intervals. We do not collect any samples from the probes. After the last 
amounts of acetylcholine, angiotensin II, and norepinephrine have been added, we change the fluid flowing 
through the tubing to lactated Ringers and warm the temperature controllers to 43°C (108°F). After 40 
minutes of heating, we add SNP to the fluid in sites 1 and 2 for 5 minutes.  At the end of the protocol, we 
remove the probes and apply a sterile dressing.  If you want, we can place a bag of ice on your arm for 10 
minutes to reduce any bruising that may occur.  We remove all instrumentation and measure your heart rate 
and blood pressure before you leave.  
 
The 4 MD sites are:  
Acetylcholine Dose Response: 
Probe 1. Lactated Ringer’s only 
  
 
 
Probe 2. Lactated Ringer’s + L-NAME 
Angiotensin II Dose Response: 
Probe 3. Lactated Ringer’s only 
Norepinephrine Dose Response: 
Probe 4. Lactated Ringer’s only 
 
Tissue/Blood/Data Storage for Future Use  
As part of this study, we are obtaining blood samples and peripheral blood mononuclear cells (white 
blood cells circulating in your blood) from you. We would like to study your blood samples and 


FOR IRB USE ONLY 
APPROVED BY: IRB-01 
IRB ID #: 202006148 
APPROVAL DATE: 07/19/24 
 
 
 
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mononuclear cells in the future, after this study is over. Your sample, information, and/or data may be 
placed in a central repository or other national repositories sponsored by the National Institutes of 
Health or other Federal agencies. If this happens, it will be stripped of identifiers (such as name, date of 
birth, address, etc).  Other qualified researchers who obtain proper permission may gain access to your 
sample and/or data for use in approved research studies that may or may not be related to the purpose of 
this study. The use of the blood and mononuclear cells will not include whole genome sequencing as 
part of future use.  
 
 
The tests we might want to use to study your blood and mononuclear cells may not even exist at this 
time.  Therefore, we are asking for your permission to store your blood and mononuclear cells so that we 
can study them in the future.  These future studies may provide additional information that will be 
helpful in understanding preeclampsia and cardiovascular disease, but it is unlikely that what we learn 
from these studies will have a direct benefit to you.  It is possible that your blood and mononuclear cells 
might be used to develop products, tests, or discoveries that could be patented and licensed.  In some 
instances, these may have potential commercial value and may be developed by the Investigators, 
University of Iowa, commercial companies, organizations funding this research, or others that may not 
be working directly with this research team.  However, donors of blood and mononuclear cells do not 
retain any property rights to the materials.  Therefore, there are no plans to provide financial 
compensation to you should this occur.   
 
Your blood and mononuclear cells will be stored with a code which may be linked to your name and date 
of birth. If you agree now to future use of your blood and mononuclear cells but decide in the future that 
you would like to have it removed from future research, you should contact Anna Stanhewicz (319-467-
1732, anna-stanhewicz@uiowa.edu). However, if some research with your blood and mononuclear cells 
has already been completed, the information from that research may still be used.  
 
Please place your initials in the blank next to Yes or No for each of the questions below: 
 
My blood and mononuclear cells may be stored/shared for future research in cardiovascular 
disease and preeclampsia.. 
 
_____ Yes  
_____ No 
 
My blood and mononuclear cells may be stored/shared for future research for any other purpose. 
 
____ Yes  
____ No 
 
WILL I BE NOTIFIED IF MY STUDY VISIT RESULT(S) IN AN UNEXPECTED FINDING?   
The results from the skin blood flow data we collect in this research study are not the same quality as 
what you would receive as part of your routine health care. The results will not be reviewed by a 
physician. Due to this, you will not be informed of any unexpected findings. The results of your study 
visit will not be placed in your medical record with your primary care physician or otherwise. If you 
believe you are having symptoms that may require care, you should contact your primary care physician. 
 
If you consent, we may contact you to participate in future studies with our laboratory group. We will 


FOR IRB USE ONLY 
APPROVED BY: IRB-01 
IRB ID #: 202006148 
APPROVAL DATE: 07/19/24 
 
 
 
Page 6 of 12 
keep your name, race/ethnicity, age, pregnancy history, and contact information for this purpose. 
Participating in this study does not mean that you are obligated to participate in any future studies. A 
separate consent document would be signed for future studies.   
 
May we keep your name, race/ethnicity, age, pregnancy history, and contact info to contact you for 
future studies?  Please place your initials in the blank next to Yes or No for each of the questions 
below: 
 
_____ Yes 
 
No 
  
WHAT ARE THE RISKS OF THIS STUDY? 
You may experience one or more of the risks indicated below from being in this study. In addition to 
these, there may be other unknown risks, or risks that we did not anticipate, associated with being in this 
study.  
Losartan: Losartan is a blood pressure lowering medication, that is commonly prescribed to lower 
blood pressure in people who have high blood pressure. It is also used to treat diabetic kidney disease. 
Losartan is part of a group of drugs called “angiotensin receptor blockers (ARBs)”. You will not be 
included in this study if you have an allergy to losartan. You could have an allergy that is unknown to 
you.  An allergic reaction could include hives, difficult breathing, and swelling of your face, lips, 
tongue, or throat. Losartan can cause harm or death to an unborn baby.  Because of this, women enrolled 
in this study will be required to use an effective form of birth control. Effective forms of birth control 
are: 
• hormonal patch, implant or pill;  
• intrauterine device;  
• consistent use of barrier contraceptive;  
• prior medical procedure to prevent pregnancy (e.g. tubal ligation, or vasectomy in current 
partner) 
You will be excluded from this study if you are pregnant or planning to become pregnant within the next 
6 months. We will perform a urine pregnancy test when we give you the medication to check that you 
are not pregnant. If you suspect that you have become pregnant while you are in this study, stop taking 
the medication immediately and notify the researchers.  
 
Please tell us if you have any side effects of the medication including the following side effects.   
Less serious side effects: 
• “colds” (upper respiratory infection) 
• mild dizziness 
• stuffy nose 
• back pain 
• diarrhea 
Serious side effects: 
• Allergic reaction. Symptoms of an allergic reaction are swelling of the face, lips, throat or 
tongue.  
• Low blood pressure (hypotension) 
• Swelling in feet, ankles, or hands, or unexplained weight gain. 
 


FOR IRB USE ONLY 
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APPROVAL DATE: 07/19/24 
 
 
 
Page 7 of 12 
Microdialysis:  The risks are less than that for a blood draw because microdialysis uses only a small, 
local area of skin.  In contrast, a blood draw involves not only skin, but also large blood vessels and 
blood.  You are likely to have some pain and bruising like that from a blood draw.  However, we use ice 
to numb your arm when we insert the tubing.  Also, we use a small needle, which is less painful than a 
typical needle for drawing blood, when we insert the tubing.  You are not likely to have pain after the 
tubing is in place.  You may feel a little pain when we remove the tubing from your skin.  Needles make 
some people feel lightheaded or cause them to faint.  Although rare, the tubing could break as we 
remove it from the skin.  Then we remove the tubing still in your skin by pulling on the other end of it.  
This presents no added risk for you.  Even more rare, the tubing could break so that a piece of the tubing 
is left under your skin.  In this case, we treat any tubing still in your skin like a splinter.  We stop any 
mild bleeding with mild pressure and sterile gauze.  Infection is possible.  We keep the risk of infection 
very small by using sterile techniques and supplies like those used with blood draws.  We apply a sterile 
bandage to the site after the experiment.  We tell you how to take care of the site.   
 
Fluid flowing through the tubing:  The substances flowing through the tubing only go to a 2.5 cm2 
(0.4 inch2) area of skin at each tubing site.  The amount that enters the skin is very small.  However, 
there is a chance of having a bad reaction to the substances.  This reaction could produce redness, 
itching, rash, and/or swelling.  A worse reaction could also cause fever, breathing problems, changes in 
pulse, convulsions, and/or fainting.  We and other researchers have used these substances with 
microdialysis in skin.  There have been no reports that these substances caused bad reactions.  If a bad 
reaction should occur, we summon medical help. 
 
Lactated Ringer’s Solution:  This fluid is similar to the natural fluids in your skin. This fluid contains 
salt, potassium, lactate, and chloride.  The acid content is like that in your body’s natural fluids.  A bad 
reaction to this fluid is highly unlikely. 
 
Acetylcholine, Angiotensin II, Norepinephrine, L-NAME, SNP: These substances stop or mimic the 
action of your body’s natural chemicals upon the blood vessels in the skin.  A small amount of these 
substances enter the skin around the tubing.  This only affects the blood flow in the vessels in that 
nickel-sized area of skin.  The effect of these substances in your skin is gone within an hour after the 
experiment.  
 
Acetylcholine  (ACh) - causes blood vessels to dilate (get wider).  
Angiotensin II (Ang II) - causes blood vessels to constrict (get smaller). 
L-NAME – like a substance made by your body; prevents some blood vessel dilation. 
Norepinephrine – causes blood vessels to constrict (get smaller) 
Sodium Nitroprusside (SNP) - causes blood vessels to dilate as much as they can. 
Laser Doppler Flowmetry:  We use a weak laser light at each microdialysis site to measure your skin’s 
blood flow. The weak lasers can hurt your eye if you stare into the light for a long time.  We do not turn 
on the laser until the probes are taped to a surface.  The tape may irritate your skin. 
Blood Pressure: The researchers measure blood pressure with the method used in a doctor’s office and 
they can use a machine.  A cuff inflates on the upper arm.  As the cuff slowly deflates, the researchers 
listen with a stethoscope at the bend in the elbow or the machine takes a reading.  During the short time 
the researchers inflate the cuff, your arm may feel numb or tingly.  The cuff could cause mild bruising. 


FOR IRB USE ONLY 
APPROVED BY: IRB-01 
IRB ID #: 202006148 
APPROVAL DATE: 07/19/24 
 
 
 
Page 8 of 12 
   
Povidone Iodine: Researchers and hospitals use this orange-colored fluid to clean the skin.  You could 
have a bad reaction if you are allergic to iodine. You need to inform us if you have this allergy. In this 
case, we use only alcohol instead.  A bad reaction could cause redness, itching, rash, and/or swelling.  A 
worse reaction could also cause fever, breathing problems, changes in pulse, convulsions, and/or 
fainting. 
 
Blood Draw:  Blood draws often cause mild pain, bruising, swelling, or bleeding.  There is also a slight 
chance of infection or a small clot.  If you are nervous about needles, blood pressure and heart rate may 
increase for a little while.  You may also feel lightheaded, sick to your stomach, or may faint.  Using the 
same techniques used in hospitals keeps the chance of infection minimal. 
 
Tape and sticky disks:   The tape or sticky disks could cause a rash.  During screening, you tell us if 
you are sensitive to tape.  If a disk sticks very strongly, removing the disk could cause an abrasion like a 
rug-burn on your skin.  An abrasion can feel tender or slightly painful, and can increase risk of infection.  
If you are sensitive to tape, you may have an increased chance for abrasion. If you get an abrasion, 
antibiotic ointment and a sterile bandage are applied.  We tell you how to take care of the site.  
 
Medical Screening:  You may feel shy about giving health information.  The staff collects the 
information in a private and professional manner.  You may feel shy about being measured.  You may 
request someone of the same sex to conduct the screening. 
 
Initial screening form:  Only members of our lab group use this form.  We use the form to help decide 
whether you are a good candidate for the study. You may feel shy about answering questions.  You may 
request someone of the same sex to ask you the questions.  We collect the information in a private and 
professional manner.  We keep the completed form confidential and secure. 
 
ECG Heart Rate: This machine measures the electrical activity of your heart.  You have 3 wires from 
the machine taped to spots on your chest.  There have been no adverse effects.  The tape may irritate. 
 
Local heating: We measure the temperature of your skin under the holders.  During heating, the skin 
feels very warm but will not hurt.  The heating makes the skin under the holder red like when you take a 
hot bath.  The redness goes away within several hours.  Some people may be more sensitive to heating.  
If your arm feels too hot, tell us, and we will reduce or stop the heating. 
 
 
Latex:  Some gloves and medical materials are made of latex rubber.  You will inform us if you are 
allergic to latex and decline to participate in the study.  
 
There is a risk of loss of confidentiality if your information or your identity is obtained by someone 
other than the investigators, but precautions will be taken to prevent this from happening.  The 
confidentiality of your electronic data created by you or by the researchers will be maintained to the 
degree permitted by the technology used. Absolute confidentiality cannot be guaranteed. 
 
WHAT ARE THE BENEFITS OF THIS STUDY? 
We don’t know if you will benefit from being in this study. 


FOR IRB USE ONLY 
APPROVED BY: IRB-01 
IRB ID #: 202006148 
APPROVAL DATE: 07/19/24 
 
 
 
Page 9 of 12 
 
However, we hope that, in the future, other people might benefit from this study because an 
understanding of blood flow in women who have had preeclampsia may help us to better understand the 
connection between preeclampsia and cardiovascular disease.  This knowledge could aid the 
development of new methods for managing the risks in these women.   
 
WILL IT COST ME ANYTHING TO BE IN THIS STUDY? 
You will not have any costs for being in this research study. You/your insurance company will remain 
responsible for your regular clinical care. 
 
WILL I BE PAID FOR PARTICIPATING? 
You will be paid for being in this research study. You may need to provide your address if a check will 
be mailed to you.  
 
Pre-treatment: $30 per treatment ($5/week for 6 weeks) 
24-hour blood pressure monitor: $10  
Experimental visits: $100 per visit ($15/microdialysis probe + $10 for pulse wave velocity 
measurements + $7.50/hour for completing the experiment) 
Total for completing the study: $280 (two pre-treatment periods, two 24 hour blood pressure monitors, 
two completed study visits) 
 
You will be given a parking pass for time involved at study and screening visits. 
 
Pro-rating: Subjects can receive payment for pre-treatment and experiments that are partially completed. 
The researchers pay an amount of money equal to the part completed. For instance, if a subject 
completes half of Experiment 1, the subject receives $15.00 for each probe inserted plus $7.50 for each 
hour they completed. The researchers may ask subjects to repeat a trial. If subjects agree to repeat a trial, 
they receive payment for the repeated trial as stated above. 
 
WHO IS FUNDING THIS STUDY? 
The University and the research team are receiving no payments from other agencies, organizations, or 
companies to conduct this research study. 
 
WHAT IF I AM INJURED AS A RESULT OF THIS STUDY? 
• If you are injured or become ill from taking part in this study, medical treatment is available at the 
University of Iowa Hospitals and Clinics. 
• The University of Iowa does not plan to provide free medical care or payment for treatment of any 
illness or injury resulting from this study unless it is the direct result of proven negligence by a 
University employee.  
• If you experience a research-related illness or injury, you and/or your medical or hospital insurance 
carrier will be responsible for the cost of treatment. 
 
WHAT ABOUT CONFIDENTIALITY? 
It is possible that other people such as those indicated below may become aware of your participation in 
this study and may inspect and copy records pertaining to this research.  Some of these records could 
contain information that personally identifies you.  


FOR IRB USE ONLY 
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IRB ID #: 202006148 
APPROVAL DATE: 07/19/24 
 
 
 
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• federal government regulatory agencies,  
• U.S. Food and Drug Administration  
• National Institutes of Health 
• auditing departments of the University of Iowa, and  
• the University of Iowa Institutional Review Board (a committee that reviews and approves 
research studies)  
  
To help protect your confidentiality, we will limit the use and sharing of your personal research 
information to people who have a need to review this information. We keep the list that matches your 
name with your code number in a locked file or password protected file on a computer in a room that is 
locked when unoccupied.  Only authorized members of the lab have access to the list. We label your 
research records with your code number and keep them in a locked file or password protected computer 
in a room that is locked when unoccupied. We label your research samples with your code number only.  
If we write a report or article about this study or share the study data set with others, we will do so in 
such a way that you cannot be directly identified. 
 
The University of Iowa Hospitals and Clinics generally requires that we document your participation in 
research occurring in a University of Iowa Health Care facility.  This documentation will be in either 
your medical record or a database maintained on behalf of the institution reflecting that you are 
participating in this study. The information included will provide contact information for the research 
team as well as information about the risks associated with this study. We will keep this Informed 
Consent Document in our research files; it will not be placed in your medical record chart. 
 
If we write a report or article about this study or share the study data set with others, we will do so in such a 
way that you cannot be directly identified.  
To further protect your privacy, the researchers have obtained a Certificate of Confidentiality from the 
Department of Health and Human Services (DHHS). This Certificate means that the researchers cannot be 
forced (for example by court subpoena) to disclose information that may identify you in any federal, state, or 
local civil, criminal, administrative, legislative, or other proceeding. However, a Certificate of 
Confidentiality does not prohibit the researcher from disclosing information about you or your involvement 
in this research that you have agreed to disclose or make available. For example, if you request in writing 
that information about you or your participation in the research be released to an insurance company, the 
researcher may not use the Certificate of Confidentiality to withhold this information. This means that you 
and your family should actively protect your own privacy. Finally, the researcher is not prevented from 
taking steps, including reporting to appropriate authorities, to prevent serious harm to yourself or others. You 
may receive a copy of the Certificate of Confidentiality upon request.  
 
WILL MY HEALTH INFORMATION BE USED DURING THIS STUDY? 
The Federal Health Insurance Portability and Accountability Act (HIPAA) requires University of Iowa 
Health Care to obtain your permission for the research team to access or create “protected health 
information” about you for purposes of this research study.  Protected health information is information 
that personally identifies you and relates to your past, present, or future physical or mental health 
condition or care.  We will access or create health information about you, as described in this document, 
for purposes of this research study.  Once University of Iowa Health Care has disclosed your protected 
health information to us, it may no longer be protected by the Federal HIPAA privacy regulations, but 
we will continue to protect your confidentiality as described under “Confidentiality.” 
 


FOR IRB USE ONLY 
APPROVED BY: IRB-01 
IRB ID #: 202006148 
APPROVAL DATE: 07/19/24 
 
 
 
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We may share your health information related to this study with other parties including federal 
government regulatory agencies, the University of Iowa Institutional Review Boards and support staff, 
the National Institutes of Health, and the U.S. Food and Drug Administration.   
 
You cannot participate in this study unless you permit us to use your protected health information.  If 
you choose not to allow us to use your protected health information, we will discuss any non-research 
alternatives available to you.  Your decision will not affect your right to medical care that is not 
research-related.  Your signature on this Consent Document authorizes University of Iowa Health Care 
to give us permission to use or create health information about you. 
 
Although you may not be allowed to see study information until after this study is over, you may be 
given access to your health care records by contacting your health care provider. Your permission for us 
to access or create protected health information about you for purposes of this study has no expiration 
date. You may withdraw your permission for us to use your health information for this research study by 
sending a written notice to: Anna Stanhewicz, 410 Field House, 225 South Grand Avenue, Iowa City, IA 
52242. However, we may still use your health information that was collected before withdrawing your 
permission.  Also, if we have sent your health information to a third party, such as the study sponsor, or 
we have removed your identifying information, it may not be possible to prevent its future use.  You will 
receive a copy of this signed document. 
 
IS BEING IN THIS STUDY VOLUNTARY? 
Taking part in this research study is completely voluntary.  You may choose not to take part at all.  If 
you decide to be in this study, you may stop participating at any time.  If you decide not to be in this 
study, or if you stop participating at any time, you won’t be penalized or lose any benefits for which you 
otherwise qualify. 
 
Will I Receive New Information About the Study while Participating? 
If we obtain any new information during this study that might affect your willingness to continue 
participating in the study, we’ll promptly provide you with that information. 
 
Can Someone Else End my Participation in this Study? 
Under certain circumstances, the researchers might decide to end your participation in this research 
study earlier than planned.  This might happen if you become pregnant, if the researcher decides to end 
the study early, or if for any reason the researcher decides that it is no longer safe for you to continue. 
 
WHAT IF I HAVE QUESTIONS? 
We encourage you to ask questions.  If you have any questions about the research study itself, please 
contact: Anna Stanhewicz (319)467-1732 or Claire Goebel (319)335-1914. If you experience a research-
related injury, please contact: Anna Stanhewicz (319)467-1739. 
 
If you have questions, concerns, or complaints about  your rights as a research subject or about research 
related injury, please contact the Human Subjects Office, 105 Hardin Library for the Health Sciences, 
600 Newton Rd, The University of Iowa, Iowa City, IA  52242-1098, (319) 335-6564, or e-mail 
irb@uiowa.edu.  General information about being a research subject can be found by clicking “Info for 
Public” on the Human Subjects Office web site, http://hso.research.uiowa.edu/. To offer input about 
your experiences as a research subject or to speak to someone other than the research staff, call the 
Human Subjects Office at the number above. 


FOR IRB USE ONLY 
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IRB ID #: 202006148 
APPROVAL DATE: 07/19/24 
 
 
 
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This Informed Consent Document is not a contract. It is a written explanation of what will happen 
during the study if you decide to participate. You are not waiving any legal rights by signing this 
Informed Consent Document. Your signature indicates that this research study has been explained to 
you, that your questions have been answered, and that you agree to take part in this study.  You will 
receive a copy of this form. 
 
 
Subject's Name (printed):  __________________________________________________________ 
 
 
 
 
__________________________________________ 
_______________________________ 
(Signature of Subject)  
 
 
 
 
(Date) 
 
 
Statement of Person Who Obtained Consent 
 
I have discussed the above points with the subject or, where appropriate, with the subject’s legally 
authorized representative.  It is my opinion that the subject understands the risks, benefits, and 
procedures involved with participation in this research study. 
 
 
__________________________________________ 
_______________________________ 
(Signature of Person who Obtained Consent) 
 
(Date)