Clinical trial NCT02487303
Conditions: Pain, Postoperative
Keywords: Acetaminophen Pain, Postoperative Analgesia, Obstetrical Cesarean Section
Sponsor: Medical University of South Carolina
Start date: 2015-03-17; Completion date: 2017-07-27
Enrollment: 148 participants; Allocation: RANDOMIZED; Intervention model: PARALLEL

Brief summary:
This study will compare IV (intravenous) versus oral (PO) acetaminophen for postoperative pain after scheduled, elective Cesarean delivery. All patients will receive a standardized spinal anesthetic for operative anesthesia and will be randomized into one of three groups: (group 1) 1 gram IV acetaminophen every 8 hours for three doses, (group 2) 1 gram oral acetaminophen every 8 hours for three doses, or (group 3) no acetaminophen. This will be a randomized, open label study.

Detailed description:
This study will compare IV versus PO acetaminophen for postoperative pain in parturients after scheduled, elective Cesarean delivery. It is designed as a randomized, open label, controlled trial. All patients will receive a standardized spinal anesthetic for operative anesthesia and will be randomized into one of three groups: (group 1) 1 gram IV acetaminophen every 8 hours for three by a computer generated list.

Arms: arm 1: (group 1) 1 gram IV acetaminophen every 8 hours for three doses arm 2: (group 2) 1 gram oral acetaminophen every 8 hours for three doses arm 3: (group 3) no acetaminophen
Interventions: intervention 1: Acetaminophen Intravenous intervention 2: Acetaminophen Oral
Intervention descriptions: intervention 1: IV 1 gram f3 doses over 24 hours intervention 2: Oral 1 gram 3 doses over 24 hours

Protocol documents:
Prot_SAP_000.pdf: 
 
 
 
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Intravenous Versus Oral Acetaminophen for 
Postoperative Pain Control After Cesarean Delivery 
 
 
NCT02487303 
 
 
August 31, 2015 
 
 
 


 
 
 
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PI Name:  Sylvia H. Wilson 
 
Study Title:   Efficacy of Intravenous versus Oral Acetaminophen for Postoperative Pain Control after 
Cesarean Delivery 
 
Once protocol is complete, save it as a Word document.  Go back to the IRB application and upload the protocol.  
 
TABLE OF CONTENTS – Prepare a table of contents based on the following outline, including page numbers, 
and insert here.    
 
A. Specific Aims: Page 1 
B. Background and Significance: Page 2 
C. Preliminary Studies: Page 2 
D. Research Design and Methods: Page 2 
E. Protection of Human Subjects: Page 3 
E1. Risks to Subjects: Page 3 
E2. Adequacy of Protection Against Risks: Page 5 
E3. Potential Benefits of the Proposed Research to the Subjects and Others: Page 5 
E4. Importance of Knowledge to be Gained: Page 6 
E5. Subject Safety and Minimizing Risks: Page 6 
F. References/Literature Citations: Page 7 
 
 
 
A. SPECIFIC AIMS___________________________________________________________________________ 
List the broad, long-term objectives and the goal of the specific research proposed, e.g., to test a stated 
hypothesis, create a novel design, solve a specific problem, challenge an existing paradigm or clinical practice, 
address a critical barrier to progress in the field, or develop new technology. 
 
The purpose of this study is to evaluate the efficacy of intravenous (IV) acetaminophen when compared to oral 
(PO) acetaminophen.   
 
B. BACKGROUND AND SIGNIFICANCE_________________________________________________________ 
Briefly sketch the background leading to the present application, critically evaluate existing knowledge, and 
specifically identify the gaps that the project is intended to fill. State concisely the importance and health 
relevance of the research described in this protocol by relating the specific aims to the broad, long-term 
objectives. If the aims of the study are achieved, state how scientific knowledge or clinical practice will be 
advanced. 
 
There is established efficacy of IV acetaminophen for perioperative pain control [1-3]; however, there is 
very little prospective literature comparing IV acetaminophen to oral formulations in the surgical 
populations.  Multimodal and narcotic sparing pain control strategies have been shown to improve 
outcomes. [1-2] IV acetaminophen represents a potential benefit to parturients to improve postoperative 
pain control, decrease narcotic side effects, and improve patient safety and satisfaction. The literature 
suggests that the slowing of gut motility in the perioperative setting may limit the absorption and efficacy 
of oral formulations of acetaminophen. [3-4] This study will evaluate if there is a clinically significant 
improvement in pain control, in addition to improvement in other outcomes such as patient satisfaction, 
ambulation time, and readiness for discharge, for post-cesarean parturients when IV acetaminophen is 
used. 
 
IV acetaminophen has a proven quick onset of action of 15 minutes versus 1 hour for the oral formulation. 
[4]  There is also a higher peak plasma concentrations in IV formulation, and CSF levels are linearly 
related to plasma levels, which may provide overall improved efficacy in the parenteral formula. In 
addition, gut motility decreased perioperatively, causing onset of oral acetaminophen to be delayed for 
Medical University of South Carolina 
Protocol 


 
 
 
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up to 60-80 minutes. [2] The only prior study to compare IV to oral acetaminophen examined patients with 
tooth extractions. [5] Study subjects were given one dose of either oral acetaminophen 45 minutes 
preoperatively or IV acetaminophen after anesthesia induction. This study found equivalent VAS scores 
at 1 hour postoperatively.  However, this was a minimally invasive procedure with little effect on gut 
motility, limited evaluation of postoperative pain control, and poor generalization to our parturient 
population.  
 
One prior study has evaluated the use of IV acetaminophen for postoperative pain following Cesarean 
delivery.[6] In this study, they compared IV acetaminophen to oral ibuprofen. VAS scores and cumulative 
opiate consumption were similar in both groups. Our study would differ since all of our patients would 
receive ketorolac IV as part of their postoperative care and then be randomized to oral, IV or no 
acetaminophen.  
 If we successfully find that IV acetaminophen is superior to oral formulations it would become an 
additional modality for postoperative pain control that would be valuable in the post-cesarean population. 
 
The primary aim of the study would evaluate total opiate consumption in morphine equivalents in the first 
24 hours postoperatively following cesarean delivery. Subjects would receive either IV acetaminophen, 
oral acetaminophen, or no acetaminophen.  All subjects would received our institution's current standard 
of care for post-operative pain control regimen in this setting.  Secondary outcomes will include VAS 
measurements, side effects to opiates (nausea, vomiting, prutitius), patient satisfaction, time to discharge 
criteria and 48 hours opiate consumption. We hypothesize that IV acetaminophen will provide superior 
postoperative pain control, decreased opioid consumption, improved patient quality measures, and 
overall improved patient satisfaction with pain control when added to this institution’s current standard of 
care. 
 
C. PRELIMINARY STUDIES___________________________________________________________________ 
Provide an account of the principal investigator’s preliminary studies pertinent to this protocol and/or any other 
information that will help to establish the experience and competence of the investigator to pursue the proposed 
project. 
 
Dr. Wilson has performed numerous prior prospective and retrospective studies examining analgesia and 
patient comfort in relation to systemic analgesics, regional analgesia and obstetric anestheisa.  
 
D. RESEARCH DESIGN AND METHODS (including data analysis) __________________________________ 
Describe the research design and the procedures to be used to accomplish the specific aims of the project. 
Include how the data will be collected, analyzed, and interpreted and specify what statistical methods will be used.   
Describe any new methodology and its advantage over existing methodologies. Discuss the potential difficulties 
and limitations of the proposed procedures and alternative approaches to achieve the aims. As part of this 
section, provide a tentative sequence or time-table for the project. Point out any procedures, situations, or 
materials that may be hazardous to personnel and the precautions to be exercised.   
 
This study will compare IV versus oral acetaminophen for postoperative pain in parturients after scheduled, 
elective Cesarean delivery.  It is designed as a randomized, open label, controlled trial. All patients will receive a 
standardized spinal anesthetic for operative anesthesia and will be randomized into one of three groups: (group 1) 
1 gram IV acetaminophen every 8 hours for three doses, (group 2) 1 gram oral acetaminophen every 8 hours for 
three doses, or (group 3) no acetaminophen.  This will be a computer generated randomized, open label study. 
The study drugs will be stored and dispensed by MUSC's Investigational Drug Services Pharmacy.   
 
All patients will receive the standard of care for Cesarean delivery intraoperatively and postoperatively. 
Intraoperative anesthetic care will be standardized to intraoperative spinal anesthetic with 12mg of 0.75% 
bupivicaine, 15mcg of fentanyl, and 0.2mg of preservative-free morphine.  This is our standard practice and also a 
well studied anesthetic care for Cesarean delivery. [7-9] 
 
Following delivery, postoperative pain control will be standardized to include IV ketorolac 30 mg every 6 hours for 
24 hours and oral oxycodone and IV morphine as needed for breakthrough pain control.   In the post anesthesia 
care unit (PACU), study participants will receive the first dose of IV ketorolac and, as randomized, their first dose 
of either oral or IV acetaminophen (groups 1 and 2) or no acetaminophen (group 3).  Once transferred to the floor, 
all patients will continue to receive the randomized scheduled study drug and scheduled IV ketorolac. Patients are 
eligible to receive an as needed standardized opiate pain control regimen including oxycodone 5-10 mg orally (5 
mg for pain scales of 4-6 and 10 mg for pain scales of 7-10).  Pain will be reassessed one hour after oral 


 
 
 
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oxycodone. If pain is poorly controlled then patients are eligible to receive IV morphine 2 mg every 2 hours for 
rescue pain control in the first 12 hours post-operatively.   From 12-24 hours postoperatively, IV morphine will be 
given after assessment by an anesthesia provider to ensure patient safety due to the bi-modal metabolism of 
morphine and the concern for delayed respiratory depression seen with intrathecal morphine administration, 
consistent with our current institutional practice. Patients' respiratory rate and level of sedation will be monitored 
every 1 hour for 12 hours and then every 2 hours for the following 12 hours while on the ward. 
 
Primary outcome for this study will be total opiate consumption in first 24 hours postoperatively. Secondary 
outcomes include: time to first narcotic rescue dose, subjective pain rating using visual analogue scales (VAS) at 
24 hours postoperatively at rest and with ambulation, opiate consumption at other time points (12, 36, and 48 
hours) time to first ambulation, overall patient satisfaction with pain control, time to meet discharge criteria 
(ambulation, oral diet, voiding/foley removal, and satisfactory pain control), and presence of opiate side effects 
(nausea, vomiting, and pruritus). 
  
Inclusion/Exclusion Criteria will be determined by chart review and patient interview during their anesthesia work 
up. 
Inclusion criteria consist of any parturient 18 years and older undergoing elective Cesarean delivery under spinal 
anesthesia who is able to consent to the study and participate in the follow-up.   
 
Exclusion criteria include:  weighing under 50 kgs,any known allergy to acetaminophen, general anesthesia, 
urgent or emergent cases, any bleeding diathesis or other coagulopathy, known G6PD deficiency, any known 
liver disease, known alcohol abuse or dependence, HELLP syndrome, thrombocytopenia or known platelet 
dysfunction, history or active gastrointestinal bleeding, acute kidney injury or chronic renal insufficiency, 
contraindication/refusal to spinal anesthestic, chronic pain, chronic narcotic use, illicit drug use or allergy to any 
study related medications.  
 
Power analysis: 
Based on a study conducted by Wong et al. [7], we expect mean morphine consumption at 24 hours to be 45 +/- 
35 mg.  A sample size of 47 subjects per group would achieve 80% power to detect a 30% difference (~ 13.5 mg)  
in morphine consumption between groups at a Boferonni adjusted significance level of alpha = 0.033 using  4 
repeated measures and assuming a first-order auto-regressive correlation structure with moderate correlation of 
0.3 and assuming the standard deviation is 35 mg. Therefore, the study will require a sample size of 141 patients. 
 
E. PROTECTION OF HUMAN SUBJECTS________________________________________________________ 
 
1.  RISKS TO THE SUBJECTS  
a.  Human Subjects Involvement and Characteristics  
- Describe the proposed involvement of human subjects.  
- Describe the characteristics of the subject population, including their anticipated number, age range and health 
status.  
 
141 subjects will be enrolled in this study.  All subjects will be 18 years old  or over and scheduled for cesarean 
delivery. 
 
Risks include allergic reaction, hepatoxicity and skin reactions. 
 
Risk of allergic reaction to acetaminophen may include: hives, difficulty breathing, swelling of your face, lips, 
tongue, or throat. 
 
Risk of hepatotoxicity may include: dark urine, jaundice, increased liver enzymes.  These symptoms are usually 
associated with acetaminophen toxicity or use of acetaminophen with liver disease or alcoholism.  
 
Skin reactions may include: acute generalized exanthematous pustulosis, Steven-Johnson Syndrome and toxic 
epidermal necrolysis.  
 
There is a risk of loss of confidentiality.   


 
 
 
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Targeted/Planned Enrollment Table 
 
Total Planned Enrollment 141 
 
TARGETED/PLANNED ENROLLMENT: Number of Subjects 
Ethnic Category 
Sex/Gender 
Females 
Males 
Total 
Hispanic or Latino 
   20 
    0 
            
Not Hispanic or Latino 
   121 
    0 
            
Ethnic Category: Total of All Subjects* 
141 
Racial Categories 
 
American Indian/Alaska Native 
0 
      
      
Asian 
2 
      
      
Native Hawaiian or Other Pacific Islander 
0 
      
      
Black or African American 
55 
      
      
White 
84 
      
      
Racial Categories: Total of All Subjects* 
141 
0 
141 
 
*The “Ethnic Category: Total of All Subjects” must be equal to the”Racial Categories: Total of All Subjects”.  
 
- Identify the criteria for inclusion or exclusion of any subpopulation.  
- Explain the rationale for the involvement of special classes of subjects, such as fetuses, neonates, pregnant 
women, children, prisoners, institutionalized individuals, or others who may be considered vulnerable populations. 
Note that 'prisoners' includes all subjects involuntarily incarcerated (for example, in detention centers) as well as 
subjects who become incarcerated after the study begins. 
- If you propose to exclude any sex/gender or racial/ethnic group, include a compelling rationale for the proposed 
exclusion. For example, 1) the research question addressed is relevant to only one gender or 2) evidence from 
prior research strongly demonstrates no difference between genders.  
- Provide either a description of the plans to include children or, if children will be excluded from the proposed 
research, then you must present an acceptable justification for the exclusion.  For example, 1) the condition is 
rare in children as compared to adults or 2) insufficient data are available in adults to judge risk in children. 
- List any collaborating sites where human subjects research will be performed, and describe the role of those 
sites in performing the proposed research. 
 
Subjects will neither be selected nor excluded based on ethnicity. The only reason for exclusion based on ethnic 
category is the inability to speak English. Our interpretters service are limited in time and availability.  
Parturients less than 18 years of age will also be excluded since they are not able to consent for themselves.   
 
b.  Sources of Materials  
- Describe the research material obtained from living human subjects in the form of specimens, records, or data.   
- Describe any data that will be recorded on the human subjects involved in the project.  
- Describe the linkages to subjects, and indicate who will have access to subject identities.   
- Provide information about how the specimens, records, or data are collected and whether material or data will 
be collected specifically for your proposed research project. 
 
The following data will be collected from the subjects medical record or interview: time to first narcotic rescue 
dose, subjective pain rating using visual analogue scales (VAS) at 24 and 48 hours postoperatively at rest and 
with ambulation, opiate consumption at (12, 36, and 48 hours). The time to first ambulation, overall patient 
satisfaction with pain control, time to meet discharge criteria (ambulation, oral diet, voiding/foley removal, and 
satisfactory pain control), and presence of opiate side effects (nausea, vomiting, and pruritus). 
 
Upon enrollment, subjects will be assigned a randomized numerical identifier for the remainder of the study.  This 
number will be used to label charts and paperwork associated with the subject.  An electronic enrollment log will 
link patient name and MRN with his/her study ID number.  All paper information will be kept in a locked cabinet in 
a locked office.  All electronic data will be kept on MUSC's password protected server. 
 
c.  Potential Risks  


 
 
 
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- Describe the potential risks to subjects (physical, psychological, social, legal, or other), and assess their 
likelihood and seriousness to the subjects.  
- Where appropriate, describe alternative treatments and procedures, including the risks and benefits of the 
alternative treatments and procedures to participants in the proposed research. 
 
Risk: Acetaminophen can damage the liver if given in large amounts. Consequently, we will utilize only 75% of the 
maximum daily dose.  (The maximum daily dose is 4g. We will adminster only 3g given as 1g every 8 hours for 24 
hours.) Subjects will also not be given any other acetaminophen during the study period. We will also exlude 
subjects with a history of or current liver dysfunction of alcohol abuse. 
Alternative: Patients may choose to not participate or withdraw from the study at any time.   
 
2.  ADEQUACY OF PROTECTION AGAINST RISKS  
 
a.  Recruitment and Informed Consent 
- Describe plans for the recruitment of subjects (where appropriate) and the process for obtaining informed 
consent. If the proposed studies will include children, describe the process for meeting requirements for parental 
permission and child assent. 
- Include a description of the circumstances under which consent will be sought and obtained, who will seek it, the 
nature of the information to be provided to prospective subjects, and the method of documenting consent.  
 
A study team member will inform a potential participant of the study prior to elective Cesarean delivery. This may 
be done at the preoperative visit or on the day of surgery. Participants will be given time to read the informed 
consent/HIPAA and have all of their questions answered prior to enrollment. If subjects choose to participate, 
consent will be documented in writing. All participants will be 18 years old or older and able to consent.      
 
b.  Protection against Risk 
- Describe planned procedures for protecting against or minimizing potential risks, including risks to 
confidentiality, and assess their likely effectiveness. 
- Where appropriate, discuss plans for ensuring necessary medical or professional intervention in the event of 
adverse effects to the subjects.  
- Studies that involve clinical trials (biomedical and behavioral intervention studies) must include a description of 
the plan for data and safety monitoring of the research and adverse event reporting to ensure the safety of 
subjects in Section 4 below.  
 
Acetaminophen is an FDA approved medication however; too much acetaminophen can harm the liver.  The 
recommended maximum daily dose is 4g in 24 hours.While the IV formulation was only approved by the FDA in 
the last 3 years, it has been utilized in Europe for decades with excellent safety.  Therefore, we are utilizing only 
75% of the maximum dose (3g administered as 1g every 8 hours for 3 doses over 24 hours) and excluding 
patients with a history of hepatic disease or alcohol abuse. 
 
Allergic reaction to acetaminophen is possible.  Any reaction to the study drug will be treated per MUSC protocol 
for drug reactions and the medication will be discontinued. Any potential participant with an allergy to 
acetaminophen will be excluded from the study. 
 
If any of the listed skin reactions (please see E1) occur the study drug will be stopped immmediatly. 
 
The study team will make every effort to prevent a loss of confidentiality.  All study team members will be properly 
trained on the procedures necessary to protect the participants information by keeping data in a locked cabinet, in 
a locked office and electronic data will be kept on a MUSC password protected server. 
 
3.  POTENTIAL BENEFITS OF THE PROPOSED RESEARCH TO THE SUBJECTS AND OTHERS  
 
- Discuss the potential benefits of the research to the subjects and others.  
- Discuss why the risks to subjects are reasonable in relation to the anticipated benefits to subjects and others. 
 
Establishing the efficacy of IV acetaminophen over the oral formulation is relevant in order to improve 
postoperative pain control following abdominal surgery. All patients will receive the standard of care at MUSC.  
Patients also receiving any acetaminophen may experience improved analgesia without increased exposure to 
opiates or opiate related side effects. Subjects receiving IV acetaminophen may experience further analgesia if it 
is superior to the oral formulation. 


 
 
 
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4.  IMPORTANCE OF THE KNOWLEDGE TO BE GAINED  
 
- Discuss the importance of the knowledge gained or to be gained as a result of the proposed research.  
- Discuss why the risks to subjects are reasonable in relation to the importance of the knowledge that reasonably 
may be expected to result. 
- NOTE: Test articles (investigational new drugs, devices, or biologicals) including test articles that will be used for 
purposes or administered by routes that have not been approved for general use by the Food and Drug 
Administration (FDA) must be named. State whether the 30-day interval between submission of applicant 
certification to the FDA and its response has elapsed or has been waived and/or whether use of the test article 
has been withheld or restricted by the Food and Drug Administration, and/or the status of requests for an IND or 
IDE covering the proposed use of the test article in the research plan. 
 
There is established efficacy of IV acetaminophen for perioperative pain control [1-3]; however, there is very little 
prospective literature comparing IV acetaminophen to oral formulations in the surgical populations.  Multimodal 
and narcotic sparing pain control strategies have been shown to improve outcomes. [1-2] IV acetaminophen 
represents a potential benefit to parturients to improve postoperative pain control, decrease narcotic side effects, 
and improve patient safety and satisfaction. The literature suggests that the slowing of gut motility in the 
perioperative setting may limit the absorption and efficacy of oral formulations of acetaminophen. [3-4] This study 
will evaluate if there is a clinically significant improvement in pain control, in addition to improvement in other 
outcomes such as patient satisfaction, ambulation time, and readiness for discharge, for post-cesarean 
parturients when IV acetaminophen is used. 
 
5.  SUBJECT SAFETY AND MINIMIZING RISKS (Data and Safety Monitoring Plan) 
 
Studies that involve *clinical trials (see description below) must include a description of the plan for subject safety 
and minimizing risks of the research, including data monitoring and adverse event reporting to ensure the safety 
of subjects. The complexity of the plan should be determined by the level of risk to subjects. The plan should 
specify: 1) what will be monitored, 2) how frequently the monitoring will occur, 3) who will be responsible for the 
monitoring, and 4) study endpoints.  
 
Data and safety monitoring will be performed by the research study committee in the Department of Anesthesia 
and Perioperative Medicine on a quarterly basis.  The committee is comprised of several attending 
anesthesioligists, the chairmen of anesthesiolgy and an emuritus dean of medicine. Any adverse events will be 
reported to MUSC's IRB per protocol and will be evaluated by the committee.  The primary endpoint of this study 
is to determine the efficacy of IV acetaminophen in post cesarean pain.   
 
*Clinical Trials 
A clinical trial is a prospective biomedical or behavioral research study of human subjects that is designed to 
answer specific questions about biomedical or behavioral interventions (drugs, treatments, devices, or new ways 
of using known drugs, treatments, or devices).  
Clinical trials are used to determine whether new biomedical or behavioral interventions are safe, efficacious, and 
effective.  Behavioral human subjects research involving an intervention to modify behavior (diet, physical activity, 
cognitive therapy, etc.) fits these criteria of a clinical trial.  Human subjects research to develop or evaluate clinical 
laboratory tests (e.g. imaging or molecular diagnostic tests) might be considered to be a clinical trial if the test will 
be used for medical decision-making for the subject or the test itself imposes more than minimal risk for subjects. 
 
F. REFERENCES/LITERATURE CITATIONS______________________________________________________ 
List all references. Each reference must include the title, names of all authors, book or journal, volume number, 
page numbers, and year of publication. The reference should be limited to relevant and current literature. It is 
important to be concise and to select only those literature references pertinent to the proposed research. 
 
1. Macario A, Royalf M. A Literature Review of Randomized Clinical Trials of Intravenous Acetaminophen 
(Paracetamol) for Acute Postoperative Pain. Pain Pract 2010;11(3):290-96. 
 
2. Smith HS. Perioperative Intravenous Acetaminophen and NSAIDs. Pain Med 2011;12(6):961-81. 
 
3. Wininger SJ, Miller H, Minkowitz HS, Royal MA, Ang RY, Breitmeyer JB, Singla NK. A Randomized, 
Double-Blind, Placebo-Controlled, Multicenter, Repeat-Dose Study Of Two Intravenous Acetaminophen 


 
 
 
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Dosing Regimens For The Treatment Of Pain After Abdominal Laparoscopic Surgery. Clin Ther 
2010;32(14):2348-69. 
 
4. Singla NK, Parulan C, Samson R, Hutchinson J, Bushnell R, Beja EG, Royal MA. Plasma and 
Cerebrospinal Fluid Pharmacokinetic Parameters After Single-Dose Administration of Intravenous, Oral, 
or Rectal Acetaminophen. Pain Pract 2012;12(7):523-32. 
 
5. Fenlon S, Collyer J, Giles J, Bidd H, Lees M, Nicholson J, Dulai R, Hankins M, Edelman N. Oral vs 
intravenous paracetamol for lower third molar extractions under general anaesthesia: Is oral 
administration inferior? Br J Anaesth 2013;110(3):432-7. 
 
6. Alhashemi JA, Alotaibi QA, Mashaat MS, Kaid TK, Mujallid RH, Kaki AM. Intravenous acetaminophen vs 
oral ibuprofen in combination with morphine PCIA after Ceasarean delivery. Can J Anesth 
2006;53(12):1200-6. 
 
7. Wong J, Carvalho B, Riley E. Intrathecal morphine 100 and 200 microgram for post-cesarean delivery 
analgesia: A trade-off between analgesic efficacy and side effects. Int J Obstet Anesth 2013;22(1):36-41. 
 
8. Singh SI, Rehou S, Marmai KL, Jones AP. The Efficacy of 2 Doses of Epidural Morphine for 
Postcesarean Delivery Analgesia. Anesth Analg 2013;117(3):677-85. 
 
9. Beatty N, Arendt K, Niesen A, Wittwer E, Jacob A. Analgesia after Cesarean delivery: A retrospective 
comparison of intrathecal hydromorphone and morphine. J Clin Anesth 2012;25(5):379-83. 
 
 
G. CONSULTANTS__________________________________________________________________________ 
Where applicable, attach electronic versions of appropriate letters from all individuals confirming their roles in the 
project.  Go to the application under “additional uploads” to attach this information.     
 
H. FACILITES AVAILABLE____________________________________________________________________ 
Describe the facilities available for this project including laboratories, clinical resources, etc. 
 
      
 
I. INVESTIGATOR BROCHURE ____________________________________________________ 
If applicable, attach the electronic version of the investigator brochure.  Go to the application under “additional 
uploads” to attach this information.   
 
J. APPENDIX_______________________________________________________________________________ 
Attach any additional information pertinent to the application, such as surveys or questionnaires, diaries or logs, 
etc.  Go to the application under “additional uploads” to attach this information.