Clinical trial NCT03559868
Conditions: Inflammatory Response
Sponsor: Yale University
Start date: 2021-03-01; Completion date: 2023-05-05
Enrollment: 45 participants; Allocation: NON_RANDOMIZED; Intervention model: PARALLEL

Brief summary:
To investigate the effect of digoxin on pyruvate kinase isoform 2 (PKM2) binding to pro-inflammatory loci and innate immune inflammatory responses in the peripheral blood in healthy subjects.

Detailed description:
To investigate the effect of orally administered digoxin on innate immune inflammatory responses in the peripheral blood of healthy subjects. We hypothesize the reduction in innate immune inflammatory responses will be expected in the peripheral blood with the effect of oral digoxin.

To investigation how human peripheral blood immune cells change their inflammatory responses after exposure to digoxin in vitro.

Arms: arm 1: Patients receiving oral digoxin 3 mcg/Kg/day arm 2: Patients receiving oral digoxin 0.15 mcg/Kg/day arm 3: oral placebo
Interventions: intervention 1: Digoxin intervention 2: Placebo intervention 3: Digoxin
Intervention descriptions: intervention 1: Participants will receive 3 mcg/Kg/day doses of oral digoxin intervention 2: Oral placebo intervention 3: Participants will receive 0.15 mcg/Kg/day doses of oral digoxin

Protocol documents:
Prot_SAP_001.pdf: 
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HRP-503B – BIOMEDICAL RESEARCH PROTOCOL 
(2017-1)
Protocol Title: Inhibition of Sterile Inflammation by Digoxin 
Principal Investigator: Wajahat Z Mehal
Version Date: 04-19-2023
(If applicable) Clinicaltrials.gov Registration #: Click or tap here to enter text.
INSTRUCTIONS
This template is intended to help investigators prepare a protocol that includes all of the necessary information 
needed by the IRB to determine whether a study meets approval criteria. Read the following instructions 
before proceeding:
1.
Use this protocol template for a PI initiated study that includes direct interactions with research 
subjects. Additional templates for other types of research protocols are available in the system Library.
2.
If a section or question does not apply to your research study, type “Not Applicable” underneath.
3.
Once completed, upload your protocol in the “Basic Information” screen in IRES IRB system. 
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SECTION I: RESEARCH PLAN
1.
Statement of Purpose: State the scientific aim(s) of the study, or the hypotheses to be tested. 
Alcoholic hepatitis (AH) is a major liver disease. Liver inflammation is a key feature of AH. We are testing if 
administering digoxin orally to healthy subjects results in a reduction in innate immune inflammatory 
responses in the peripheral blood, and if digoxin can alter binding of PKM2 to pro-inflammatory loci in primary 
human monocytes, and identify novel gene targets for PKM2. 
Hypothesis: Pyruvate Kinase M2 (PKM2) regulates liver inflammation by up-regulating HIF-1 and other pro-
inflammatory genes, and this can be inhibited by digoxin to provide hepatoprotection in AH.
Aim 1. Obtain clinical data supporting the therapeutic use of digoxin in alcoholic hepatitis. 
Aim 2. Identify dominant and novel targets that are regulated by PKM2 in alcoholic hepatitis. 
       Aim 3. Obtain plasma proteomic and molecular data to allow for early identification of patients with SIRS.
2.
Probable Duration of Project: State the expected duration of the project, including all follow-up and data 
analysis activities.  
204 weeks
3.
Background: Describe the background information that led to the plan for this project. Provide references to 
support the expectation of obtaining useful scientific data.
The development of sterile inflammation after cell death is a ubiquitous response which occurs in all organs. 
The liver is notable for developing an exceptionally strong sterile inflammatory response. This is seen in 
experimental and human alcoholic steatohepatitis (AH). It is also notable that for (AH) there is no effective 
therapy. This is in contrast to suppression of T cell responses, for which potent drugs exist (tacrolimus and 
cyclosporine). In addition to the lack of effective therapy, we also have a poor ability to identify patients with 
AH who will develop clinically significant systemic inflammatory response (SIRS), which is associated with 
higher mortality. The sterile inflammatory response in the liver incorporates many cell types and signaling 
pathways, and two processes among these are universally present. One is an increased tissue redox state, 
which plays a key role in the progression of inflammatory disorders. There are many cellular mechanisms of 
production of reactive oxygen species (ROS), with tissue hypoxia and activation of the HIF-1α pathway being a 
dominant one. Acute and chronic alcohol exposure result in liver hypoxia leading to HIF-1α  pathway activation 
in AH. The requirement for HIF-1α activation in non-alcoholic steatohepatitis (NASH) was demonstrated by the 
ability of HIF-1α  antisense nucleotide treatment to offer protection. We have demonstrated that HIF-1α  
activation potentiates and sustains the amplitude of acute inflammatory responses, and is vital for the 
transition from acute self-limiting to sustained chronic inflammation. There is also a close positive relationship 
between HIF-1α  activation and increased ROS production. These mechanistic insights into the role of the HIF-
1α  pathway in sterile inflammation may have great clinical relevance due to the ability of cardiac glycosides 
(CGs) to inhibit HIF-1α  activation. CGs are well known in cardiology due to their effects of increasing 
ionotropy, and decreasing chronotropy, via partial inhibition of the Na+ /K+ ATPase on the plasma membrane 
of myocytes. Of note the HIF-1α  inhibitory effect of CGs is independent of its activity on the Na+ /K+ ATPase, 
indicating CGs have additional unidentified molecular targets. In this application, we describe a novel and 
potent role for digoxin in reducing the severity of steatosis, inflammation and hepatocellular damage in livers 
undergoing AH. Digoxin improves oxidative stress during liver injury through maintaining cellular redox 
homeostasis, and suppressing HIF-1α  pathway activation. We have further identified the key metabolic 
regulator pyruvate kinase isoform 2 (PKM2) as a digoxin-binding protein. PKM2 isoform exists primarily as an 
enzymatically inactive dimer which can translocate to the nucleus, where it will interact with HIF-1α  and 
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regulate expression of numerous genes. Interestingly, digoxin does not alter PKM2 kinase activity but 
suppresses PKM2 dependent transcriptional activity. This area is significant because sterile inflammation (SI) is 
the central pathological process in AH. Our results identify PKM2 as a key molecule in liver sterile inflammation 
which can be therapeutically targeted. The identification of digoxin as a PKM2 binder, which leads to critical 
anti-inflammatory effects, provides a novel opportunity to reduce liver inflammation in AH. We have further 
identified a unique molecular profile from a pilot aptamer-proteomic screen which will be expanded to the 
whole InTeam cohort to provide predictive markers for severe AH.
4.
Research Plan: Summarize the study design and research procedures using non-technical language that can 
be readily understood by someone outside the discipline. Be sure to distinguish between standard of care vs. 
research procedures when applicable, and include any flowcharts of visits specifying their individual times and 
lengths. Describe the setting in which the research will take place.
Test if administering digoxin orally to healthy subjects results in a reduction in innate immune inflammatory 
responses in the peripheral blood. 
We need to obtain peripheral blood lymphocytes from healthy subjects on different doses of digoxin to test if 
digoxin has an effect on the immune response of PBLs. 
A) There will be three study groups. 
Groups:
A: Placebo n=15                     B: Digoxin 3 mcg/Kg/day n=15                       C: Digoxin 0.15 mcg/Kg/day n=15
Serum digoxin concentrations, BUN, Creatinine, CBC, Electrolytes (Na, K) and ECGs will be obtained weekly. 
pregnancy testing for female participants of childbearing potential and a baseline screening to determine if you 
are eligible for this study. Peripheral blood (25ml) in EDTA tubes (purple top) will be obtained at 0, 1, 2, 3 weeks 
after starting digoxin, with written consent and in accordance with the guidelines of Yale University ethics 
committee. PMN and monocytes will be isolated using PolymorphPrep (Axis-Shield) according to standard 
procedure, and purity will be determined by flowcytometric analysis. Spontaneous ROS of PMNs will be measured 
by culturing neutrophils with CM-H2DCFA for 30 minutes, washing, followed by kinetic analysis of intracellular ROS 
with fluorescent plate reader. Neutrophils up-regulate ROS spontaneously in culture, and for each sample the un-
treated aliquot will be the control for the digoxin treated aliquot. Monocytes will be stimulated LPS (100ng/ml) for 
3 hrs after which cDNA will be prepared and qPCR conducted for IL-1B, TNF-α and IL-6. cDNA and supernatant will 
be stored for further analysis based on initial results.
These initial numbers are based the use of similar assays in the preliminary data. We will obtain additional 
assistance from Dr. Bruce Barton Professor of Biostatistics at the University of Massachusetts, who will 1) review 
of study design, including sample size and specimen utilization; 2) develop an appropriate data management 
system to provide data capture and edit capabilities; 3) develop appropriate statistical analysis, quality assurance, 
and quality control plans; 4) conduct the statistical analysis and provide material for presentation/publication; and 
5) provide resources to assure reproducible research. Please see letter of support.
 
 
B) The data management system will be set up in the University of Massachusetts Medical School secure REDCap 
environment, which is used for all of the pilot studies funded by NIAAA as part of the AlcHepNet Research Network. 
This HIPAA-compliant, 21 CFR Part 11 compliant environment is accessible only by medical school staff and 
collaborating clinical sites of the AlcHepNet who are assigned an account in this environment by UMMS IT with 
approval by the UMMS IRB. The system will be programmed for a single entry with validation rules at the time of 
entry and additional checking conducted after the data have been submitted to the main data base. These edits 
will check for validity, consistency, and normal range values. Edit queries will be generated and resolved by clinic 
staff with corrections posted to the database through the REDCap system, which enforces an audit trail for all 
changes. The study database will be stored in REDCap within the secure environment to protect any PHI/PII data 
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that are collected as part of the study. We will strive to minimize collection of such data and REDCap will be 
programmed to segregate that data from the study data so that exports for analysis will be deidentified. Data will 
be exported from REDCap for import into the latest version of SAS (SAS Institute, Cary, NC) or other statistical 
software for all analysis. 
 
C-E) All reports and analyses will be generated from these files. Data files (and accompanying programs) that are 
used for reports, presentations, or publication will be archived as required past the end of the study. REDCap will 
also have the audit trail capability enabled for tracing any data modifications. Data from laboratories can be 
uploaded directly into REDCap for storage. The REDCap system will be programmed and maintained by study staff 
at the U Mass Medical School AlcHepNet Data Coordinating Center while data entry will be performed by study 
staff at the local site.
The sample size for this pilot study was based on results from in vitro experiments, where differences in as few as 5 
participants were seen to be significantly different. Given the inherent variability in the absorption of digoxin in 
humans, a sample size of 15 was determined to be reasonable to provide a reasonable distribution of results from 
repeated measures of participants at the differing digoxin dose levels.
F) Pregnancy: The chance of a female subject to become pregnant on a 4-week study is very less, if in case 
this does happen they will be asked to stop the drug and withdraw from the study immediately. We do 
not intend to follow the pregnancy and birth outcome. 
Drug preparation: Digoxin is commercially available as a 0.05mg/ml elixir (Boehringer Ingelheim). The
appropriate dosing of digoxin and control will be prepared with the help of the Yale Center for Clinical
Investigation (YCCI) as detailed in the facilities and resources. Stopping criteria: Subjects will be removed from the 
study if any serum digoxin level is above 0.8ng/ml, or if there are any abnormalities in blood tests or
ECGs. Data from these subjects will not be used in the analysis. Analysis, expected outcome and
alternative approaches: It is expected that there will not be a significant difference in the neutrophil ROS
and monocyte qPCR results in control group A between the four time points. It is expected that for group B
and C, both neutrophil ROS and monocyte qPCR levels will be lower at time points 1, 2, 3 weeks as compared
to time 0, and as compared to all time points of group A. It is not clear if in group D time points of week 1, 2,
and 3 will be any different from time point 0. For the time points where significant differences are found we
will perform additional luminex assay with the supernatant using the luminex five plex panel (GM-CSF, IL-
1B, IL-6, IL-8, TNF-α ). There will also be an analysis of the production of ROS and qPCR levels in relation to
serum digoxin levels at the time that the analysis samples were obtained. The combinations of these analysis
will establish that digoxin taken orally is effective in reducing inflammatory responses, and will also provide
information on dose response for oral dosing as well as serum concentrations.
5.
Genetic Testing   
N/A ☒
A. Describe
i.
the types of future research to be conducted using the materials, specifying if immortalization of 
cell lines, whole exome or genome sequencing, genome wide association studies, or animal 
studies are planned Write here
ii.
the plan for the collection of material or the conditions under which material will be received 
Write here
iii. the types of information about the donor/individual contributors that will be entered into a 
database Write here
iv. the methods to uphold confidentiality Write here
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B. What are the conditions or procedures for sharing of materials and/or distributing for future research 
projects? Write here
C. Is widespread sharing of materials planned? Write here
D. When and under what conditions will materials be stripped of all identifiers? Write here
E. Can donor-subjects withdraw their materials at any time, and/or withdraw the identifiers that connect 
them to their materials?  Write here
i.
How will requests to withdraw materials be handled (e.g., material no longer identified: that is, 
anonymized) or material destroyed)? Write here
F.
Describe the provisions for protection of participant privacy Write here
G. Describe the methods for the security of storage and sharing of materials  Write here
6.
Subject Population: Provide a detailed description of the types of human subjects who will be recruited into 
this study.
In total 60 healthy subjects ≥18 years and ≤70 years with no known clinical history  will be recruited for this 
study.
7. Subject classification: Check off all classifications of subjects that will be specifically recruited for enrollment in 
the research project. Will subjects who may require additional safeguards or other considerations be enrolled 
in the study? If so, identify the population of subjects requiring special safeguards and provide a justification 
for their involvement.
☐Children
☒ Healthy 
☐Fetal material, placenta, or dead fetus
☐Non-English Speaking
☐ Prisoners
☐Economically disadvantaged persons
☐Decisionally Impaired
☐ Employees
☐Pregnant women and/or fetuses
☐Yale Students 
☐ Females of childbearing potential
NOTE: Is this research proposal designed to enroll children who are wards of the state as potential subjects?
Yes ☐  No ☒ 
8. Inclusion/Exclusion Criteria: What are the criteria used to determine subject inclusion or exclusion?
Inclusion Criteria 
    1. Age >18 y ≤ 70 years
    2. subjects with normal serum creatinine, normal EKG and currently not taking any medication.
Exclusion criteria
1. Autoimmune liver disease (ANA > 1/320)
2. Chronic viral hepatitis
3. Hepatocellular carcinoma
4. Complete portal vein thrombosis
5. Extrahepatic terminal disease
6. Pregnancy
           7. Treatment with prednisolone or pentoxifyllin for more than 3 days prior to inclusion/start date
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    8. Active alcohol abuse (>50 g/day for men and >40 g/day for women) in the last 3 months
    9. AST > ALT and total bilirubin > 3 mg/dl in the past 3 months
    10. Liver biopsy and/or clinical picture consistent with alcoholic hepatitis
11. Lack of signed informed consent.
12. Known hypersensitivity to digoxin or other forms of digitalis, ventricular fibrillation.
13. Any significant medical conditions, any electrolyte abnormalities, over the counter medications, 
natural products and prescription drugs.
14. Breastfeeding mothers.
9. How will eligibility be determined, and by whom? Write here
      The eligibility will be determined by PI and his team according to their IRB protocol.
10. Risks: Describe the reasonably foreseeable risks, including risks to subject privacy, discomforts, or 
inconveniences associated with subjects participating in the research. 
The following risks are associated with participating in the study: 
•
Adverse effects from digoxin and its toxicity. Symptoms of digoxin toxicity include: confusion, irregular 
pulse, loss of appetite, nausea, vomiting, diarrhea, fast heartbeat, vision changes (which could be unusual, but 
includes blind spots, blurred vision, changes in how colors look, and seeing spots), decreased consciousness, 
decreased urine output, difficulty breathing when lying down, excessive nighttime urination, and overall swelling
•
Allergic reaction to digoxin (nausea, vomiting, diarrhea, loss of appetite, weakness, dizziness, headache, 
anxiety, depression, slow heart rate, enlarged or tender breasts in men, or skin rash.
•
Risks and discomforts of phlebotomy: To obtain detailed biochemical liver function tests and blood 
samples for research, blood sampling will be required. Patients will have 4 venipunctures during the period of 
evaluation (28 days). Each venipuncture will remove ~18 ml of blood. However, no more than 6 ml/kg will be 
drawn from any one person during this 4-week period. Blood collection by venipuncture is associated with mild 
discomfort, and possible risk of localized bruising, phlebitis, or extravasation. The risk of infection or fainting is 
extremely small.
•
Risks and Inconveniences of an electro-cardiogram (EKG): EKG is very safe procedure which is being 
performed very commonly for evaluation of cardiac status. There is no risk of performing EKG to the subjects, 
however, there may be slight inconvenience of cold sensations to the skin related to the application of gel at the 
site of EKG leads placement.
11. Minimizing Risks: Describe the manner in which the above-mentioned risks will be minimized.
1. Each participant will be enrolled only after signing an informed consent in the presence of a study coordinator. 
Participants will have adequate opportunity to review the informed consent and to ask any questions they may 
have about the research protocol, compensation, risks, and benefits of taking part in the study. 
2. Blood draws and other biological sample collections will be performed by trained personnel. pregnancy testing 
for female participants of childbearing potential and a baseline screening to determine if you are eligible for this 
study.
3. A written detailed collection procedure is provided to minimize spilling during collection.
4. Serum digoxin concentrations, BUN, Creatinine, CBC and ECGs will be obtained weekly to monitor the adverse 
effect of digoxin. In case, subject is having adverse effect related to digoxin, they will be removed from study and 
medical care will be provided at Yale new haven hospital if needed. 
5. In terms of potential drug allergies, all subjects will be asked standardized questions about previous allergic 
reactions to digoxin. If a participant reports a digoxin allergy, they will be excluded. We will contact (telephone, 
email, or text message) each participant within three days of starting the oral digoxin in order to assess 
tolerability.
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6. There may be low risk of breach of confidentiality, however we will follow appropriate data safety plan to 
minimize the breach of confidentiality. In addition, unauthorized personnel will not be allowed to have access to 
subject’s confidential information.
7. If study subjects express a desire to discontinue the protocol, for any reason, the intervention will be 
immediately terminated and consent to participate may be rescinded at the subject’s discretion.
12. Data and Safety Monitoring Plan: Include an appropriate Data and Safety Monitoring Plan (DSMP) based on 
the investigator’s risk assessment stated below. (Note: the HIC will make the final determination of the risk to 
subjects.)
a. 
What is the investigator’s assessment of the overall risk level for subjects participating in this 
study? Risks are minimal.
b.
If children are involved, what is the investigator’s assessment of the overall risk level for the 
children participating in this study? Write here
c.
Include an appropriate Data and Safety Monitoring Plan. Examples of DSMPs are  
available here http://your.yale.edu/policies-procedures/forms/420-fr-01-data-and-safety-
monitoring-plans-templates for
i.
Minimal risk
ii.
Greater than minimal
Greater Than Minimal Risk DSMP
1. Personnel responsible for the safety review and its frequency:
The principal investigator will be responsible for monitoring the data, assuring protocol compliance, and 
conducting the safety reviews at the specified frequency, which must be conducted at a minimum of 
every 6 months (including when reapproval of the protocol is sought).  During the review process, the 
principal investigator (monitor) will evaluate whether the study should continue unchanged, require 
modification/amendment, or close to enrollment. Either the principal investigator, the IRB have the 
authority to stop or suspend the study or require modifications.
2. The risks associated with the current study are deemed greater than minimal for the following 
reasons: (choose those that apply)
1. We do not view the risks associated with the __________ as minimal risks.
2. We do not view the risks associated with the combined use of ________and_________ as 
minimal risks.
3. Given the now established safety and validity of the current _drug________ in our prior work, 
we do not view the proposed studies as high risk.
4. Given our experience with the combined co-administration_________, we do not view the 
proposed studies as high risk.
Although we have assessed the proposed study as one of greater than minimal risk, the potential exists 
for anticipated and/or unanticipated adverse events, serious or otherwise, to occur since it is not 
possible to predict with certainty the absolute risk in any given individual or in advance of first-hand 
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experience with the proposed study methods. Therefore, we provide a plan for monitoring the data and 
safety of the proposed study as follows:
3. Attribution of Adverse Events:
Adverse events will be monitored for each subject participating in the study and attributed to the study 
procedures / design by the principal investigator (Dr Wajahat Mehal) according to the following 
categories:
a.) Definite: Adverse event is clearly related to investigational procedures(s)/agent(s).
b.) Probable: Adverse event is likely related to investigational procedures(s)/agent(s).
c.) Possible: Adverse event may be related to investigational procedures(s)/agent(s).
d.) Unlikely: Adverse event is likely not to be related to the investigational procedures(s)/agent(s).
e.) Unrelated: Adverse event is clearly not related to investigational procedures(s)/agent(s).
4. Plan for Grading Adverse Events:
The following scale will be used in grading the severity of adverse events noted during the study:
1. Mild adverse event
2. Moderate adverse event
3. Severe 
5. Plan for Determining Seriousness of Adverse Events:
Serious Adverse Events:
In addition to grading the adverse event, the PI will determine whether the adverse event meets the 
criteria for a Serious Adverse Event (SAE).  An adverse event is considered serious if it results in any of 
the following outcomes:
1. Death;
2. A life-threatening experience in-patient hospitalization or prolongation of existing 
hospitalization; 
3. A persistent or significant disability or incapacity; 
4. A congenital anomaly or birth defect; OR
5. Any other adverse event that, based upon appropriate medical judgment, may jeopardize the 
subject’s health and may require medical or surgical intervention to prevent one of the other 
outcomes listed in this definition. 
An adverse event may be graded as severe but still not meet the criteria for a Serious Adverse Event.  
Similarly, an adverse event may be graded as moderate but still meet the criteria for an SAE.  It is 
important for the PI to consider the grade of the event as well as its “seriousness” when determining 
whether reporting to the IRB is necessary.
6. Plan for reporting UPIRSOs (including Adverse Events) to the IRB
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The principal investigator will report the following types of events to the IRB: 
Any incident, experience or outcome that meets ALL 3 of the following criteria:
1. Is unexpected (in terms of nature, specificity, severity, or frequency) given (a) the research 
procedures described in the protocol-related documents, such as the IRB-approved protocol 
and informed consent document and (b) the characteristics of the subject population being 
studied; AND 
2. Is related or possibly related to participation in the research (possibly related means there is 
a reasonable possibility that the incident, experience, or outcome may have been caused by 
the procedures involved in the research); AND
3. Suggests that the research places subjects or others at greater risk of harm (including 
physical, psychological, economic, legal, or social harm) than was previously known or 
recognized.
Unanticipated Problems Involving Risks to Subjects or Others (UPIRSOs) may be medical or non-
medical in nature, and include – but are not limited to – serious, unexpected, and related adverse 
events and unanticipated adverse device effects.  Please note that adverse events are reportable to 
the IRB as UPIRSOs only if they meet all 3 criteria listed above.
These UPIRSOs/SAEs will be reported to the IRB in accordance with IRB Policy 710, using the appropriate 
forms found on the website. All related events involving risk but not meeting the prompt reporting 
requirements described in IRB Policy 710 should be reported to the IRB in summary form at the time of 
continuing review. If appropriate, such summary may be a simple brief statement that events have 
occurred at the expected frequency and level of severity as previously documented.  In lieu of a 
summary of external events, a current DSMB report can be submitted for research studies that are 
subject to oversight by a DSMB (or other monitoring entity that is monitoring the study on behalf of an 
industry sponsor).
7. Plan for reporting adverse events to co-investigators on the study, as appropriate the protocol’s 
research monitor(s), e.g., industrial sponsor, Yale Cancer Center Data and Safety Monitoring Committee 
(DSMC), Protocol Review Committee (PRC), DSMBs, study sponsors, funding and regulatory agencies, 
and regulatory and decision-making bodies.
For the current study, the following individuals, funding, and/or regulatory agencies will be notified 
(choose those that apply):
□ All Co-Investigators listed on the protocol.
□ Yale Cancer Center Data and Safety Monitoring Committee (DSMC)
X National Institutes of Health
□ Food and Drug Administration (Physician-Sponsored IND #_______)
□ Medical Research Foundation (Grant______)
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□ Study Sponsor
□ Other Data Safety Monitoring Board (DSMB) or Committee (DSMC)
The principal investigator (Dr Wajahat Mehal) will conduct a review of all adverse events upon 
completion of every study subject. The principal investigator will evaluate the frequency and severity of 
the adverse events and determine if modifications to the protocol or consent form are required.
Please note: For any study that may be considered high risk, the IRB will be more focused on the safety 
requirements for the study and a DSMB will likely be required. 
d. For multi-site studies for which the Yale PI serves as the lead investigator:N/A
i.
How will adverse events and unanticipated problems involving risks to subjects or others be 
reported, reviewed and managed? Write here
ii.
What provisions are in place for management of interim results? Write here
iii.
What will the multi-site process be for protocol modifications? Write here
13. Statistical Considerations: Describe the statistical analyses that support the study design. 
Primary analyses of the biochemical measures will be conducted using mixed effects models to account for the 
correlation among the biochemical measures obtained from repeated blood draws on the same participant. The 
models will include digoxin dose (3 mcg/kg/day, 0.15 mcg/kg/day, none/placebo), time on study (weeks 0, 1, 2, 
and 3), and relevant patient characteristics (i.e., age, gender). A random intercept will be included so that each 
participant will have their own starting point and time will be a categorical predictor to better model a potential 
curvilinear relationship between time on study and biochemical levels without assuming a linear slope. Because 
treatment group is a three-level variable, we will first conduct a Type III multi-degree of freedom test to determine 
if any difference exists among the three groups and, if that is significant, conduct all pairwise comparisons to 
determine where the difference is. Because these tests are not independent, we will apply a Bonferroni correction 
to the critical p-value to reduce the possibility of a Type I error by chance alone. In this case, the critical p-value will 
be set at 0.05/3 = 0.017 so that any p-value less than 0.017 will be declared statistically significant. 
Adherence analysis will be ascertained using pill counts for each participant at the weekly visits. For safety 
analyses, we will record any adverse events, both serious (SAE) and not, described by the participant at each 
weekly visit. Each AE will include a description of the AE/SAE, relatedness to digoxin, and resolution. These will be 
summarized by treatment group and, if there are three or more participants in any one group with a specific 
AE/SAE, we will conduct a statistical test (Likelihood Ratio Chi-Square) to determine any statistically significant 
difference among the treatment groups using the analogous approach as above to first test for any difference in 
the incidence of AE/SAE among the three treatment groups followed by conducting the three pairwise 
comparisons, again using the Likelihood Ratio Chi-Square. Because this is a safety analysis, the critical p-value is 
left at 0.05 for all comparisons to avoid increasing the probability of a Type II error. 
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SECTION II: RESEARCH INVOLVING DRUGS, BIOLOGICS, RADIOTRACERS, PLACEBOS AND DEVICES
If this section (or one of its parts, A or B) is not applicable, check off N/A and delete the rest of the section.
A.  RADIOTRACERS
☒N/A
1.
Name of the radiotracer: Write here
2.
Is the radiotracer FDA approved?    ☐YES 
☐NO
If NO, an FDA issued IND is required for the investigational use unless RDRC assumes oversight. 
3.
Check one:   ☐IND#  Write here or  ☐RDRC oversight (RDRC approval will be required prior to use)
4.    Background Information: Provide a description of previous human use, known risks, and data addressing 
dosage(s), interval(s), route(s) of administration, and any other factors that might influence risks. If this is the first 
time this radiotracer is being administered to humans, include relevant data on animal models. 
Write here
4.    Source:  Identify the source of the radiotracer to be used. Write here
5.    Storage, Preparation and Use: Describe the method of storage, preparation, stability information, method of 
sterilization and method of testing sterility and pyrogenicity.
 Write here
B.  DRUGS/BIOLOGICS    ☒N/A
1.
If an exemption from IND filing requirements is sought for a clinical investigation of a drug product that is 
lawfully marketed in the United States, review the following categories and complete the category that 
applies (and delete the inapplicable categories):
Exempt Category 1: The clinical investigation of a drug product that is lawfully marketed in the United States 
can be exempt from IND regulations if all of the following are yes: 
1.
The intention of the investigation is NOT to report to the FDA as a well-controlled study in support 
of a new indication for use or to be used to support any other significant change in the labeling for 
the drug.
☒
2.
The drug that is undergoing investigation is lawfully marketed as a prescription drug product, and 
the intention of the investigation is NOT to support a significant change in the advertising for the 
product.
☒
3.
The investigation does NOT involve a route of administration or dosage level or use in populations 
or other factor that significantly increases the risks (or decreases the acceptability of the risks) 
associated with the use of the drug product
☒
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4.
The investigation will be conducted in compliance with the requirements for institutional (HIC) 
review and with the requirements for informed consent of the FDA regulations (21 CFR Part 50 and 
21 CFR Part 56).
☒
5.
The investigation will be conducted in compliance with the requirements regarding promotion and 
charging for investigational drugs.
☒
 Exempt Category 2 (all items i, ii, and iii must be checked to grant a category 2 exemption)
☐i. The clinical investigation is for an in vitro diagnostic biological product that involves one or
more of the following (check all that apply):
☐ Blood grouping serum
☐ Reagent red blood cells 
☐ Anti-human globulin
☐ii. The diagnostic test is intended to be used in a diagnostic procedure that confirms the
diagnosis made by another, medically established, diagnostic product or procedure; and
☐iii. The diagnostic test is shipped in compliance with 21 CFR §312.160.
 Exempt Category 3
☐ The drug is intended solely for tests in vitro or in laboratory research animals if shipped in accordance with 
21 CFR 312.60
 Exempt Category 4 
☐ A clinical investigation involving use of a placebo if the investigation does not otherwise require submission 
of an IND. 
2. 
Background Information: Provide a description of previous human use, known risks, and data addressing 
dosage(s), interval(s), route(s) of administration, and any other factors that might influence risks. If this is the first 
time this drug is being administered to humans, include relevant data on animal models. 
Cardiac glycosides have been used since ancient Egyptians, and the clinical effects of digoxin were first 
characterized in 1785, and was approved by the FDA in the mid-1990’s. Since then many hundreds of thousands of 
patients have taken digoxin and there are no side-effects when serum levels are maintained in or below the 
therapeutic range. We have selected a dose that will maintain serum levels in or below the therapeutic range and 
in addition we serum levels will be monitored weekly.
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3. 
Source:  Identify the source of the drug or biologic to be used. Prashant Patel, PharmD Manager, 
Investigational Drug Service Department of Pharmacy Services Yale-New Haven Hospital O: 203-688-8515
a)
Is the drug provided free of charge to subjects? ☒YES 
☐NO 
If yes, by whom? Write here
4.
Storage, Preparation and Use: Describe the method of storage, preparation, stability information, and for 
parenteral products, method of sterilization and method of testing sterility and pyrogenicity.
This is under the management of the investigational Drug Service, Department of Pharmacy Services
Yale-New Haven Hospital. We can provide the location of initial delivery, elixir preparation, and other storage 
places including details of refrigerators at YCCI if required.
Check applicable Investigational Drug Service utilized:
    ☒  YNHH IDS                                                        ☐  CMHC Pharmacy                                           ☐ West Haven VA
    ☐  PET Center                                                      ☐    None      
    ☐  Other: 
Note: If the YNHH IDS (or comparable service at CMHC or WHVA) will not be utilized, explain in detail how the PI 
will oversee these aspects of drug accountability, storage, and preparation.  
5.
Use of Placebo: 
☐Not applicable to this research project
YNHH IDS will be utilized.
If use of a placebo is planned, provide a justification which addresses the following:
a)
Describe the safety and efficacy of other available therapies. If there are no other available therapies, state 
this. Write here
b)
State the maximum total length of time a participant may receive placebo while on the study. 
Write here
c)
Address the greatest potential harm that may come to a participant as a result of receiving placebo. 
Write here
d)
Describe the procedures that are in place to safeguard participants receiving placebo. 
Write here
6.
Continuation of Drug Therapy After Study Closure   ☒Not applicable to this project
Are subjects provided the opportunity to continue to receive the study drug(s) after the study has ended?
☐ Yes   If yes, describe the conditions under which continued access to study drug(s) may apply as well as 
conditions for termination of such access.  Write here
☐ NO   If no, explain why this is acceptable. Write here
 B.  DEVICES
 ☒N/A
1.
Are there any investigational devices used or investigational procedures performed at Yale-New Haven 
Hospital (YNHH) (e.g., in the YNHH Operating Room or YNHH Heart and Vascular Center)?  ☐Yes   ☐No   
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 If Yes, please be aware of the following requirements:
A YNHH New Product/Trial Request Form must be completed via EPIC: Pull down the Tools tab in the EPIC Banner, 
Click on Lawson, Click on “Add new” under the New Technology Request Summary and fill out the forms 
requested including the “Initial Request Form,” “Clinical Evidence Summary”, and attach any other pertinent 
documents. Then select “save and submit” to submit your request;   AND
Your request must be reviewed and approved in writing by the appropriate YNHH committee before 
patients/subjects may be scheduled to receive the investigational device or investigational procedure.
2.
Background Information: Provide a description of previous human use, known risks, and any other factors 
that might influence risks. If this is the first time this device is being used in humans, include relevant data on 
animal models. 
Write here
3.
Source: 
a) Identify the source of the device to be used. Write here
b) Is the device provided free of charge to subjects? ☐Yes   ☐No    
4.
Investigational device accountability:  State how the PI, or named designee, ensures that an investigational 
device is used only in accordance with the research protocol approved by the HIC, and maintains control of 
the investigational device as follows:
a)
Maintains appropriate records, including receipt of shipment, inventory at the site, dispensation or use 
by each participant, and final disposition and/or the return of the investigational device (or other 
disposal if applicable): Write here
b)
Documents pertinent information assigned to the investigational device (e.g., date, quantity, batch or 
serial number, expiration date if applicable, and unique code number): Write here
c)
Stores the investigational device according to the manufacturer's recommendations with respect to 
temperature, humidity, lighting, and other environmental considerations: Write here
d)
Ensures that the device is stored in a secure area with limited access in accordance with applicable 
regulatory requirements: Write here
e)
Distributes the investigational device to subjects enrolled in the IRB-approved protocol: Write here
SECTION III: RECRUITMENT/CONSENT AND ASSENT PROCEDURES 
1. Targeted Enrollment: Give the number of subjects: 
a.
Targeted for enrollment at Yale for this protocol: 60
b.
If this is a multi-site study, give the total number of subjects targeted across all sites: Write here
2.
Indicate recruitment methods below  .  Attach copies of any recruitment materials that will be used.
☒Flyers
☒ Internet/web postings
☐ Radio
☐ Posters
☒ Mass email solicitation
☐ Telephone
☐ Letter
☐ Departmental/Center website
☐ Television
☐ Medical record review* 
☐ Departmental/Center research boards
☐ Newspaper
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☐ Departmental/Center newsletters
☐ Web-based clinical trial registries
☐ Clinicaltrails.gov 
☒ YCCI Recruitment database
☐ Social Media (Twitter/Facebook): 
☐ Other: 
* Requests for medical records should be made through JDAT as described at 
http://medicine.yale.edu/ycci/oncore/availableservices/datarequests/datarequests.aspx
3.  Recruitment Procedures: 
a. Describe how potential subjects will be identified. We will use the YCCI subject database.
b. Describe how potential subjects are contacted. We will use the YCCI subject database.
Who is recruiting potential subjects? The investigators have employed the services of the Yale Center for Clinical 
Investigation/CTSA for recruitment for this study, including dedicated recruitment staff, community outreach 
personnel, as well as the use of the websites www.yalestudies.org and www.researchmatch.org with targeted 
recruitment information for both patients and healthcare professionals.
The project manager will primarily oversee screening and recruitment.
4. Assessment of Current Health Provider Relationship for HIPAA Consideration:
Does the Investigator or any member of the research team have a direct existing clinical relationship with any 
potential subject? 
☐Yes, all subjects
☐Yes, some of the subjects
☒No
If yes, describe the nature of this relationship. Write here
5. Request for waiver of HIPAA authorization: (When requesting a waiver of HIPAA Authorization for either the 
entire study, or for recruitment purposes only.  Note: if you are collecting PHI as part of a phone or email 
screen, you must request a HIPAA waiver for recruitment purposes.)
Choose one: 
☐ For entire study 
☒ For recruitment/screening purposes only
☐ For inclusion of non-English speaking subject if short form is being used and there is no translated HIPAA 
research authorization form available on the University’s HIPAA website at hipaa.yale.edu.
i.
Describe why it would be impracticable to obtain the subject’s authorization for use/disclosure of this 
data: We are requesting a waiver of signed HIPAA authorization in order to undertake telephone and 
online survey screening to determine potential eligibility of interested subjects. Without a request of 
signed HIPAA authorization for telephone and online survey recruitment only, we would not be able to 
telephone screen or provide an online screening survey to participants.
ii.
If requesting a waiver of signed authorization, describe why it would be impracticable to obtain the 
subject’s signed authorization for use/disclosure of this data: By signing this protocol application, the 
investigator assures that the protected health information for which a Waiver of Authorization has 
been requested will not be reused or disclosed to any person or entity other than those listed in this 
application, except as required by law, for authorized oversight of this research study, or as specifically 
approved for use in another study by an IRB.
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The investigator assures that the protected health information for which a Waiver of Authorization has been 
requested will not be reused or disclosed to any person or entity other than those listed in this application, except 
as required by law, for authorized oversight of this research study, or as specifically approved for use in another 
study by an IRB.
Researchers are reminded that unauthorized disclosures of PHI to individuals outside of the Yale HIPAA-Covered 
entity must be accounted for in the “accounting for disclosures log”, by subject name, purpose, date, recipients, 
and a description of information provided.  Logs are to be forwarded to the Deputy HIPAA Privacy Officer.
6.
Process of Consent/Assent: Describe the setting and conditions under which consent/assent will be obtained, 
including parental permission or surrogate permission and the steps taken to ensure subjects’ independent 
decision-making. 
Prior to signing the consent document, study staff will provide subjects with additional information about the 
study and review the consent forms and other study-related documentation. All subjects participating in the 
study will provide written consent. All subjects will be informed of the option of not participating, or of 
stopping at any time during the interview.
7.
Evaluation of Subject(s) Capacity to Provide Informed Consent/Assent: Indicate how the personnel obtaining 
consent will assess the potential subject’s ability and capacity to consent to the research being proposed. 
The Principal Investigator and project manage/coordinator will determine the ability and capacity of 
individuals to give consent by questioning during the process of consent. Potential subjects will be asked, 
“Could you explain to me what we are going to ask you to do in this study? This will help me to be sure that 
you understand the research,” as well as, “What more would you like to know about this study?” All subjects 
will be informed of the option of not participating, or of stopping at any time during the study
8.
Non-English Speaking Subjects: Explain provisions in place to ensure comprehension for research involving 
non-English speaking subjects. If enrollment of these subjects is anticipated, translated copies of all consent 
materials must be submitted for approval prior to use. 
As needed, we will utilize bilingual translators for the informed consent process.
As a limited alternative to the above requirement, will you use the short form* for consenting process if you 
unexpectedly encounter a non-English speaking individual interested in study participation and the translation of 
the long form is not possible prior to intended enrollment?  YES ☐  NO ☒
Note* If more than 2 study participants are enrolled using a short form translated into the same language, then 
the full consent form should be translated into that language for use the next time a subject speaking that 
language is to be enrolled.
Several translated short form templates are available on the HRPP website (yale.edu/hrpp) and translated HIPAA 
Research Authorization Forms are available on the HIPAA website (hipaa.yale.edu). If the translation of the short 
form is not available on our website, then the translated short form needs to be submitted to the IRB office for 
approval via modification prior to enrolling the subject.   Please review the guidance and presentation on use of 
the short form available on the HRPP website.
If using a short form without a translated HIPAA Research Authorization Form, please request a HIPAA waiver in 
the section above. 
9.
Consent Waiver: In certain circumstances, the HIC may grant a waiver of signed consent, or a full waiver 
of consent, depending on the study. If you will request either a waiver of consent, or a waiver of signed consent 
for this study, complete the appropriate section below.  
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☐Not Requesting any consent waivers 
☐Requesting a waiver of signed consent:
☐ Recruitment/Screening only (if for recruitment, the questions in the box below will apply to 
recruitment activities only)
☐ Entire Study (Note that an information sheet may be required.)
 For a waiver of signed consent, address the following:
Would the signed consent form be the only record linking the subject and the research?  YES ☐  NO ☐ 
Does a breach of confidentiality constitute the principal risk to subjects? YES ☐  NO ☐
 
OR
Does the research pose greater than minimal risk? YES ☐    NO☐ 
Does the research include any activities that would require signed consent in a non-research context? YES ☐   
NO ☐
 ☐ Requesting a waiver of consent:
☐ Recruitment/Screening only (if for recruitment, the questions in the box below will apply to 
recruitment activities only)
☐ Entire Study 
 
For a full waiver of consent, please address all of the following:

Does the research pose greater than minimal risk to subjects?  
☐ Yes If you answered yes, stop. A waiver cannot be granted.  
☐ No

Will the waiver adversely affect subjects’ rights and welfare? YES ☐    NO☒

Why would the research be impracticable to conduct without the waiver? Write here

Where appropriate, how will pertinent information be returned to, or shared with subjects at a later date? 
Write here
SECTION IV: PROTECTION OF RESEARCH SUBJECTS
    Confidentiality & Security of Data:
1.
What protected health information (medical information along with the HIPAA identifiers) about subjects will 
be collected and used for the research?   Name, date of birth, telephone number(s), mailing address, email 
address, gender, weight and height (to calculate BMI), medications, other diagnoses. Only the investigators will 
have access to PHI.
2.
How will the research data be collected, recorded and stored? Paper forms will be kept in each study 
participant’s record and will be stored in a locked file cabinet in PI office at 1 Gilbert Street TAC building, room 
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S223A. Only the PI and study staff will have access to the participant’s records. Forms will be coded with subject 
number; no personally identifiable information will be associated with these forms.
3.
How will the digital data be stored? ☐CD  ☐DVD  ☐Flash Drive  ☐Portable Hard Drive   ☒Secured Server  
☐Laptop Computer  ☐Desktop Computer  ☐Other
4.
What methods and procedures will be used to safeguard the confidentiality and security of the identifiable 
study data and the storage media indicated above during and after the subject’s participation in the study? 
All documents and subject information will be strictly maintained according to HIC and HIPAA regulations to 
ensure confidentiality at all times. Access to subject information will be limited to a “need to know” basis and 
all data will be coded to maintain confidentiality. Only those investigators with appropriate Human Subjects 
training will have access to subject data. All electronic files are encrypted and password protected; paper files 
are kept in locked file cabinets. All data will be managed to assure strict confidentiality of subjects at all times. 
In addition, all portable devices will contain encryption software per University policy 5100.
All portable devices must contain encryption software, per University Policy 5100.  If there is a technical reason a 
device cannot be encrypted please submit an exception request to the Information Security, Policy and Compliance 
Office by clicking on url http://its.yale.edu/egrc or email it.compliance@yale.edu
5.
What will be done with the data when the research is completed? Are there plans to destroy the identifiable 
data? If yes, describe how, by whom and when identifiers will be destroyed. If no, describe how the data and/or 
identifiers will be secured. Once the research is complete, the data will be analyzed by all members of the study 
staff and a statistician. Data will be kept for five years after the study ends. Data will then be de-identified using 
a “Safe Harbor” (45CFR164.514(b)(2)) approach consistent with the HIPAA Privacy rule. De-identified data will 
be certified by a statistician that there is a very small risk that use of the protected health information could lead 
to a subject being identified. The principal investigator (Dr. Wajahat Mehal) is responsible for the 
implementation of data de-identification.
6.
If appropriate, has a Certificate of Confidentiality been obtained?       
 This is NIH funded and is covered a COC..
SECTION V: POTENTIAL BENEFITS
Potential Benefits: Identify any benefits that may be reasonably expected to result from the research, either to 
the subject(s) or to society at large. (Payment of subjects is not considered a benefit in this context of the risk 
benefit assessment.) 
There will be no direct benefits of the proposed research to the participating human subjects.
         SECTION VI: RESEARCH ALTERNATIVES AND ECONOMIC CONSIDERATIONS
1.
Alternatives: What other alternatives are available to the study subjects outside of the research? 
Alternatives to participating in the study is not to participate. Payments for Participation (Economic 
Considerations): Describe any payments that will be made to subjects, the amount and schedule of payments, 
and the conditions for receiving this compensation.
Subjects will be remunerated $75 at each visit through ePay system set up by the CSRU.
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2.
Costs for Participation (Economic Considerations): Clearly describe the subject’s costs associated with 
participation in the research, and the interventions or procedures of the study that will be provided at no cost 
to subjects. 
Subjects will not incur any costs associated with participation in the research besides transportation costs.       
Subjects will be provided parking passes at each visit to cover parking if they drive to their visit and park in 
the ProPark lot surrounding the building.
You will be compensated in the amount of $75 at each visit for 4 weeks. The total amount you
will be given in four weeks will be $300 ($75x4) if you complete all the visits required by the
study. You will be provided parking passes at each visit to cover parking if you park in the
ProPark lot surrounding the building.
In Case of Injury: This section is required for any research involving more than minimal risk, and for minimal 
risk research that presents the potential for physical harm (e.g., research involving blood draws).
This research does not involve more than minimal risk.
a.
Will medical treatment be available if research-related injury occurs? YNHH emergency room.
b.
Where and from whom may treatment be obtained? YNHH emergency room.
c.
Are there any limits to the treatment being provided? Treatment will be provided at the current 
standard of care.
d.
Who will pay for this treatment? This will vary from subject to subject. The clinical trial will not 
pay for the treatment.
e.
How will the medical treatment be accessed by subjects? Subject will walk into the YNHH 
emergency room. If this is not possible they will be transported there by ambulance.
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IMPORTANT REMINDERS
Will this study have a billable service?  Yes ☒ 
 No☐
A billable service is defined as any service rendered to a study subject that, if he/she was not on a study, would 
normally generate a bill from either Yale-New Haven Hospital or Yale Medical Group to the patient or the patient’s 
insurer. The service may or may not be performed by the research staff on your study, but may be provided by 
professionals within either Yale-New Haven Hospital or Yale Medical Group (examples include x-rays, MRIs, CT 
scans, specimens sent to central labs, or specimens sent to pathology). Notes: 1. There is no distinction made 
whether the service is paid for by the subject or their insurance (Standard of Care) or by the study’s funding 
mechanism (Research Sponsored). 2. This generally includes new services or orders placed in EPIC for research 
subjects. 
If answered, “yes”, this study will need to be set up in OnCore, Yale’s clinical research management system, for 
Epic to appropriately route research related charges. Please contact oncore.support@yale.edu
Are there any procedures involved in this protocol that will be performed at YNHH or one of its affiliated entities?  
Yes ☐  No ☒ 
If Yes, please answer questions a through c and note instructions below.  
a. Does your YNHH privilege delineation currently include the specific procedure that you will perform? Yes ☐  No 
☐
b. Will you be using any new equipment or equipment that you have not used in the past for this procedure? Yes 
☐  No ☐
c. Will a novel approach using existing equipment be applied? Yes ☐  No ☐
 
If you answered “no” to question 4a, or "yes" to question 4b or c, please contact the YNHH Department of 
Physician Services (688-2615) for prior approval before commencing with your research protocol.
IMPORTANT REMINDER ABOUT RESEARCH AT YNHH 
Please note that if this protocol includes Yale-New Haven Hospital patients, including patients at the HRU, the 
Principal Investigator and any co-investigators who are physicians or mid-level practitioners (includes PAs, APRNs, 
psychologists and speech pathologists) who may have direct patient contact with patients on YNHH premises 
must have medical staff appointment and appropriate clinical privileges at YNHH. If you are uncertain whether 
the study personnel meet the criteria, please telephone the Physician Services Department at 203-688-2615. By 
submitting this protocol as a PI, you attest that you and any co-investigator who may have patient contact has a 
medical staff appointment and appropriate clinical privileges at YNHH.
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ICF_000.pdf: 
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COMPOUND AUTHORIZATION AND CONSENT FOR PARTICIPATION IN A RESEARCH 
STUDY
YALE UNIVERSITY
YALE UNIVERSITY SCHOOL OF MEDICINE
YALE-NEW HAVEN HOSPITAL
Study Title: Inhibition of Sterile Inflammation by Digoxin
Principal Investigator (the person who is responsible for this research): 
Wajahat Mehal, PHD, MD
Department of Internal Medicine, Section of digestive diseases
TAC building
1 Gilbert street
New Haven, CT 06519
Phone Number: 203-606-5140
Why is this study being offered to me?
You are invited to participate in this research study designed to test whether administration of 
oral digoxin to healthy subjects results in a reduction in innate immune inflammatory responses 
in the peripheral blood.   Digoxin is a medication known as a cardiac glycoside, and is typically 
used to treat various heart conditions.   If digoxin is shown to reduce inflammatory responses, it 
could possibly play a role in the treatment of liver diseases such as alcoholic hepatitis (AH), of 
which inflammation is a key feature.  You have been asked to participate because we are looking 
for healthy subjects for this study and you are eligible for this participation. We expect that 45 
subjects will take part of this study here at Yale University.
To decide if you wish to be a part of this research study you should know enough about
its risks and benefits to make an informed decision. This consent form gives you detailed
information about the research study, which a member of the research team will discuss with
you. This discussion will go over all aspects of this research: its purpose, the procedures that
will be performed, any risks of the procedures, possible benefits and possible alternative
treatments. Once you understand the study, you will be asked if you wish to participate; if so,
you will be asked to sign this form.
Study procedures will include: 
You will be asked to take oral digoxin once daily for 21 days.  There are four (4) clinic visits 
within 28 days which will last approximately about half an hour per visit).  The visits will take 
place at the Yale Center for Clinical Investigation, 2nd church street, New Haven, USA, 06519.  
To demonstrate that oral digoxin can reduce inflammatory markers in human blood, and to 
obtain an initial idea of digoxin dosages required for this we will conduct a dose response of oral 
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digoxin in healthy individuals. The highest digoxin dose will be at the lower end of the currently 
recommended dosing range for digoxin, 3 mcg/kg/day, and we will test a lower dose, 0.15 
mcg/kg/day, as well.  A placebo (sugarless syrup) group will serve as a control. Serum digoxin 
levels and EKG’s will be assayed weekly (four clinical visits). We will ask you about any side 
effects that you may be experiencing, regardless of your digoxin levels. The study doctor might 
ask you to stop taking the drug if any serum digoxin level is above 0.8ng/ml, or if there are any 
abnormalities in blood tests or EKGs. 
While you will not benefit from your participation in this study, the knowledge gained from this 
study may be beneficial to patients with alcoholic hepatitis in the future.
Taking part in this study is your choice. You can choose to take part, or you can choose not to 
take part in this study.  You can also change your mind at any time.  Whatever choice you make; 
you will not lose access to your medical care or give up any legal rights or benefits. 
If you are interested in learning more about the study, please continue reading, or have someone 
read to you, the rest of this document. Take as much time as you need before you make your 
decision. Ask the study staff questions about anything you do not understand. Once you 
understand the study, we will ask you if you wish to participate; if so, you will have to sign this 
form.
Who is paying for the study?
This study is funded by a grant for the National Institutes of Health.
Who is providing other support for the study?
The phlebotomy, EKG and handing the medication will take a place in Yale Center for Clinical 
Investigation (YCCI)
What is the study about? 
The purpose of this study is to assess the degree of inflammatory markers decline in healthy 
individuals. Digoxin is an FDA approved drug which is used in adults for the treatment of mild 
to moderate heart failure and for controlling the heart rate in patients with an abnormal rhythm 
called atrial fibrillation. We are using digoxin in this study because it may have strong anti-
inflammatory properties. We’ll be separating out different kinds of white blood cells and 
evaluating their responses to things that normally trigger inflammation.  We think that digoxin 
will suppress the cells’ inflammatory responses.
What are you asking me to do and how long will it take? 
If you agree to take part in this study, this is what will happen: 
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Screening:  
On the initial visit, you will be asked to provide your clinical history, undergo a physical exam, 
have a pregnancy test if you are a female of childbearing potential, and a baseline screening to 
determine if you are eligible for this study. The baseline screening includes collection of blood 
specimens for a complete blood count and chemistry panel, collection of a urine sample if 
needed, and an electrocardiogram, which is a procedure that monitors the activity of your heart 
by placing electrodes on your chest and body. This is also known as an EKG.
You will be given oral digoxin (3 mcg/kg/day or 0.15 mcg/kg/day) or placebo to take daily for 
21 days  to take at home.
If you are eligible for the study, you will be advised not to take any over the counter medications, 
prescription medications or natural products during this study period.
Your will be randomized (by a computer) to one of the following groups:
Group A: Placebo
Group B: 3 mcg/Kg/day
Group C: 0.15mcg/Kg/day
Digoxin is commercially available as a 0.05mg/ml elixir (Boehringer Ingelheim). The digoxin 
and placebo control will be prepared and stored by the department of pharmacy services in 
YNHH.  
Schedule of Activites:
First visit: Baseline EKG and a baseline blood sample (18 ml / 1.2 tablespoons). Your weekly 
dose of study medication will be given as an elixir in a bottle with a dropper. Drops should be 
put directly to the mouth.
Second visit (after 7 days): EKG and a blood sample (18 ml / 1.2 tablespoons). Your weekly 
dose of study medication will be given as an elixir in a bottle with a dropper.
Third Visit (after 7 days): EKG and a blood sample (18 ml / 1.2 tablespoons). Your weekly dose 
of study medication will be given as an elixir in a bottle with a dropper.
Fourth Visit after (7 days): EKG and a blood sample (18 ml / 1.2 tablespoons). Study terminates.
Method: You should put the drops directly in your mouth` 
Food to Avoid: Dietary fiber, specifically insoluble fiber such as wheat bran, can slow down the 
absorption of digoxin and lessen its effectiveness. To prevent this, participants should take 
digoxin at least one hour before after eating a meal.
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Herb use can also affect digoxin. For example, ginseng can elevate blood levels of digoxin by as 
much as 75%, while St. John’s Wort decreases blood levels of this drug by 25%.
 In the event that you experience a serious adverse event related to the digoxin, you will be 
removed from study and medical care will be provided at Yale New Haven Hospital if needed. 
This is an investigational study and all the subjects will undergo the same procedures regardless 
of which group they are assigned to.
You will be told of any significant new findings that are developed during the course of your
participation in this study that may affect your willingness to continue to participate.
What are the risks and discomforts of participating? 
The following risks are associated with participating in the study:

Adverse effects from digoxin and its toxicity (e.g. Dizziness, Changes in mood and mental 
alertness, including confusion, depression and lost interest in usual activities, Anxiety, 
Nausea, vomiting and diarrhea, Headache)

Subjects will be removed from study and medical care will be provided at Yale new haven 
hospital if needed. 

Allergic reaction to digoxin.

Risks and discomforts of phlebotomy.

Risks and Inconveniences of an electro-cardiogram (EKG.

Risk to a pregnancy/fetus.

Breach of confidentiality.
Withdrawing from the study:  If you wish to discontinue from the study, for any reason, the 
intervention will be immediately terminated and consent to participate may be rescinded at your 
discretion.
Pregnancy Risks:

It is not known if the study drug (digoxin) can cause harm to a fetus or have an effect 
on reproductive capacity (i.e., the number of children you can have).  Therefore, it is 
important that you do not participate if you are pregnant or think you might become 
pregnant. 

During your participation, you should be on an effective form of contraception.

The drug may be present in the breast milk, although the amount is small and should 
not have any effect upon a nursing infant.  
How will I know about new risks or important information about the study? 
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We will tell you if we learn any new information that could change your mind about taking part 
in this study. 
How can the study possibly benefit me?
This study is not designed to benefit you. 
How can the study possibly benefit other people?
This study may generate clinical data supporting the anti-inflammatory use of digoxin in various 
conditions including alcoholic hepatitis and may benefit science by answering a scientific 
question. The question it will answer is whether taking digoxin orally can modulate the immune 
response of peripheral blood lymphocytes. 
Are there any costs to participation? 
You will not have to pay for taking part in this study. The digoxin, blood tests and EKGs will be 
provided at no cost to you. The only costs include transportation and your time coming to the 
study visits.
Will I be paid for participation? 
You will be compensated $75 for each of the study visits, for a total of $300 ($75x4) if you 
complete all four visits required by the study. You will be provided parking passes at each visit 
to cover parking if you park in the ProPark lot surrounding the building.
According to the rules of the Internal Revenue Service (IRS), payments that are made to you as a 
result of your participation in a study may be considered taxable income. The payment is not
conditional on completing the study, you will be compensated on weekly basis.
What are my choices if I decide not to take part in this study?
Your alternative to participating in this study is not to participate.
How will you keep my data safe and private?
We will keep information we collect about you confidential. We will share it with others if you 
agree to it or when we have to do it because U.S. or State law requires it. For example, we will tell 
somebody if you we learn that you are hurting a child or an older person.
Paper forms will be kept in each study participant’s record and will be stored in a locked file 
cabinet in PI office at 1 Gilbert Street TAC building, room S223A. Only the PI and study staff will 
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have access to the participant’s records. Forms will be coded with subject number; no personally 
identifiable information will be associated with these forms.
When we publish the results of the research or talk about it in conferences, we will not use your 
name. If we want to use your name, we would ask you for your permission.  
We will also share information about you with other researchers for future research, but we will 
not use your name or other identifiers. We will not ask you for any additional permission.
What Information Will You Collect About Me in this Study?
We will be collecting basic demographic data on you (Name, date of birth, gender, weight and 
height (to calculate BMI)), additional information that will help us communicate with you like 
(telephone number(s), mailing address, email address) and your personal history with 
(medications, other diagnoses). Only the investigators will have access to PHI.
The information we are asking to use and share is called “Protected Health Information.” It is 
protected by a federal law called the Privacy Rule of the Health Insurance Portability and 
Accountability Act (HIPAA). In general, we cannot use or share your health information for 
research without your permission. If you want, we can give you more information about the 
Privacy Rule. Also, if you have any questions about the Privacy Rule and your rights, you can 
speak to Yale Privacy Officer at 203-432-5919.
The specific information about you and your health that we will collect, use, and share includes:
• Research study records
• Medical and laboratory records of only those services provided in connection with this 
Study.  
• The entire research record and any medical records held by Yale University created from: 
July 1st 2019 to April 4th 2024.
• Records about phone calls made as part of this research
• Records about your study visits
• Study Doctor will scan your record for:

HIV / AIDS test results

Hepatitis infection

Sexually transmitted diseases

Other reportable infectious diseases

Physical exams

Laboratory, x-ray, and other test results

Diaries and questionnaires

The diagnosis and treatment of a mental health condition

Use of illegal drugs or the study of illegal behavior

Records about any study drug you received
• Research study records
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• Medical and laboratory records of only those services provided in connection with this 
Study.  
• The entire research record and any medical records held by Yale university created from: 
04-04-2019 to04-04-2024
How will you use and share my information?
We will use your information to conduct the study described in this consent form. 
We may share your information with:
•
The U.S. Department of Health and Human Services (DHHS) agencies
•
Representatives from Yale University, the Yale Human Research Protection Program and 
the Institutional Review Board (the committee that reviews, approves, and monitors 
research on human participants), who are responsible for ensuring research compliance.  
These individuals are required to keep all information confidential. 
•
The U.S. Food and Drug Administration (FDA) This is done so that the FDA can review 
information about Digoxin involved in this research.  The information may also be used to 
meet the reporting requirements of drug regulatory agencies.  
•
The study sponsor or manufacturer of study drug/device
•
Drug regulatory agencies in other countries
•
Governmental agencies to whom certain diseases (reportable diseases) must be reported
•
Health care providers who provide services to you in connection with this study.
•
Laboratories and other individuals and organizations that analyze your health information 
in connection with this study, according to the study plan.
•
Co-Investigators and other investigators 
•
Study Coordinator and Members of the Research Team 
•
Data and Safety Monitoring Boards and others authorized to monitor the conduct of the 
Study 
We will do our best to make sure your information stays private. But, if we share information with 
people who do not have to follow the Privacy Rule, your information will no longer be protected 
by the Privacy Rule. Let us know if you have questions about this. However, to better protect your 
health information, agreements are in place with these individuals and/or companies that require 
that they keep your information confidential.
Why must I sign this document?
By signing this form, you will allow researchers to use and disclose your information described 
above for this research study. This is to ensure that the information related to this research is 
available to all parties who may need it for research purposes. You always have the right to review 
and copy your health information in your medical record. 
However, this is a single/double blinded treatment study and if you sign this permission form, you 
will not be allowed to look at or copy your study related information until after the research is 
completed.   
What if I change my mind?
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The authorization to use and disclose your health information collected during your participation 
in this study will never expire.  However, you may withdraw or take away your permission at 
any time. You may withdraw your permission by telling the study staff or by writing to 
Wajahat Mehal, PHD, MD
Department of Internal Medicine, Section of digestive diseases
TAC building
1 Gilbert street
New Haven, CT 06519 at the Yale University, New Haven, CT 06520.
If you withdraw your permission, you will not be able to stay in this study but the care you get 
from your doctor outside this study will not change.  No new health information identifying you 
will be gathered after the date you withdraw. Information that has already been collected may 
still be used and given to others until the end of the research study to insure the integrity of the 
study and/or study oversight.  
Who will pay for treatment if I am injured or become ill due to participation in the study? 
If you are injured while on study, seek treatment and contact the study doctor Wajahat Mehal
203-606-5140, 203-785-3411, 203-737-6063 as soon as possible. The Study PI and Yale School 
of Medicine will not provide funds for the treatment of research-related injury; if necessary, the 
PI will identify the appropriate medical treatment in conjunction with the patients’ clinicians. 
The PI and Yale School of Medicine are not obliged to pay for any such treatment. You do not 
give up any of your legal rights by signing this form.
What if I want to refuse or end participation before the study is over? 
Participating in this study is voluntary. You are free to choose not to take part in this study.
Refusing to participate will involve no penalty or loss of benefits to which you are otherwise
entitled (such as your health care outside the study, the payment for your health care, and your
health care benefits). However, you will not be able to enroll in this research study and will not
receive study procedures as a study participant if you do not allow use of your information as
part of this study.
You can withdraw from this study at any time without providing explanation. To withdraw from
the study, you can call a member of the research team at any time and tell them that you are no
longer wanting to take part. This will cancel any future appointments.
The researchers may withdraw you from participating in the research if necessary (e.g.,
development of serious side effects or toxicity to digoxin, or subject’s non-compliance). In
addition, if you start taking any over the counter drugs, prescription medication, and natural 
products during the study period, you will be removed from study.
Withdrawing from the study will involve no penalty or loss of benefits to which you are
otherwise entitled. It will not harm your relationship with your own doctors or with Yale-New
Haven Hospital.
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Study doctor might decide you should stop taking the drug if any serum digoxin level is above 
0.8ng/ml, or if there are any abnormalities in blood tests or EKGs. Data from these subjects will 
not be used in the analysis 
What will happen with my data if I stop participating?
When you withdraw from the study, We will not collect any additional data. Data already 
collected will be deidentified and used in data analysis as necessary to insure the integrity of the 
study and/or study oversight.
We will store it in a private secure place until 04-04-2024.
This research is covered by a Certificate of Confidentiality from the National Institutes of 
Health. The researchers with this Certificate may not disclose or use information, documents, or 
biospecimens that may identify you in any federal, state, or local civil, criminal, administrative, 
legislative, or other action, suit, or proceeding, or be used as evidence, for example, if there is a 
court subpoena, unless you have consented for this use. Information, documents, or 
biospecimens protected by this Certificate cannot be disclosed to anyone else who is not 
connected with the research.
The Certificate cannot be used to refuse a request for information from personnel of the United 
States federal or state government agency sponsoring the project that is needed for auditing or 
program evaluation by the National Institute of Health which is funding this project or for 
information that must be disclosed in order to meet the requirements of the federal Food and 
Drug Administration (FDA).  You should understand that a Certificate of Confidentiality does 
not prevent you from voluntarily releasing information about yourself or your involvement in 
this research. If you want your research information released to an insurer, medical care 
provider, or any other person not connected with the research, you must provide consent to allow 
the researchers to release it.
The Certificate of Confidentiality will not be used to prevent disclosure as required by federal, 
state, or local law of reports of child abuse and neglect, or harm to self or others or 
communicable diseases. 
The Certificate of Confidentiality will not be used to prevent disclosure for any purpose you 
have consented to in this informed consent document.
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Who should I contact if I have questions? 
Please feel free to ask about anything you don't understand. 
If you have questions later or if you have a research-related problem, you can call the Principal 
Investigator (Wajahat Mehal) t 203-606-5140 
If you have questions about your rights as a research participant, or you have complaints about 
this research, you call the Yale Institutional Review Boards at (203) 785-4688 or email 
hrpp@yale.edu.
A description of this clinical trial will be available on http://www.ClinicalTrials.gov, as required 
by U.S. Law. This Web site will not include information that can identify you. At most, the Web 
site will include a summary of the results. You can search this Web site at any time.
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Authorization and Permission
Your signature below indicates that you have read this consent document and that you agree to 
be in this study.  
We will give you a copy of this form.
Participant Printed Name
Participant Signature
Date
Person Obtaining Consent Printed Name
Person Obtaining Consent Signature
Date
Complete if the participant is not fluent in English and an interpreter was used to obtain 
consent.  Participants who do not read or understand English must not sign this full consent 
form, but instead sign the short form translated into their native language.  This form should 
be signed by the investigator and interpreter only.  If the interpreter is affiliated with the study 
team, the signature of an impartial witness is also required.
Print name of interpreter: ______________________________________
Signature of interpreter: ___________________________________    Date: _________
An oral translation of this document was administered to the participant in 
_____________ (state language) by an individual proficient in English and 
____________ (state language). 
Print name of impartial witness: __________________________________
Signature of impartial witness: ________________________________Date: _________
See the attached short form for documentation.
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