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Clinical Trials/NCT07337902
NCT07337902RecruitingNot Applicable

Acetaminophen Versus Ibuprofen for Discomfort in Crohn's Disease (AVID-CD): An Open-Label Randomized Pilot Trial

University of North Carolina, Chapel Hill1 site in 1 country24 target enrollmentStarted: March 18, 2026Last updated:
Interventions

Trial Snapshot

Phase
Not Applicable
Status
Recruiting
Enrollment
24
Locations
1
Primary Endpoint
Proportion of participants who enroll out of those who expressed interest in the study

Study Overview

Brief Summary

The purpose of this pilot study is to prepare for a larger study that will compare the effectiveness and safety of two common pain medications, ibuprofen and acetaminophen, to help treat period cramps in women with Crohn's disease. The goal of this study is to identify any challenges in running a larger study. The investigators will track how many people sign up for the study, how well participants follow the study plan, how many people stay in the study, and whether they are able to complete all the study activities, such as taking the medication, submitting samples, and filling out surveys.

During the study, participants will undergo a screening visit that includes a blood draw, physical exam, pregnancy test, stool testing, and complete surveys about Crohn's disease and menstrual cycles. Once this visit is complete, the rest of the study will occur at home.

Participants will be assigned to take either ibuprofen or acetaminophen to help treat period cramps for four menstrual cycles in a row. Participants will take ibuprofen for two cycles and acetaminophen for two cycles. Participants will know which medication is being taken at any given time, but the order in which they take the medications will be randomly assigned.

Before each menstrual cycle, participants will submit a stool sample and fill out a short (<1 minute) electronic survey. When participants develop period cramps, they will take the assigned medication for three days and fill out short (<1 minute) electronic surveys about their cramps. After participants finish taking the medication for three days, they will submit another stool sample and fill out two more short (<1 minute) electronic surveys. After have completing this process for four menstrual cycles, a remote interview with a researcher to give feedback on the study will be conducted.

Study Design

Study Type
Interventional
Allocation
Randomized
Intervention Model
Crossover
Primary Purpose
Treatment
Masking
None

Eligibility Criteria

Ages
18 Years to 44 Years (Adult)
Sex
Female
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Ages 18-44 years
  • Assigned female at birth
  • Crohn's Disease (CD) diagnosis
  • In stable clinical remission from CD, defined as a short Crohn's Disease Activity Index (CDAI; See Table 3) <150 without use of corticosteroids
  • Self-reported primary dysmenorrhea
  • Regular menstrual cycles occurring every 23-35 days
  • Using an appropriate contraceptive method or abstinence

Exclusion Criteria

  • Any of the following conditions: endometriosis, adenomyosis, polycystic ovarian syndrome, endometrial fibroids/polyps, chronic pelvic inflammatory disease, a history of pelvic surgery including hysterectomy, any other pathological pelvic conditions, or current pregnancy
  • Plans to become pregnant during the study period
  • Use of an oral contraceptive for less than 3 months, on an unstable oral contraceptive dose within the last 3 months, switched from one oral contraceptive to another within the last 3 months or intend to do so during the course of the trial
  • Taking hormone therapy including estrogen or progesterone that is not part of a hormonal contraceptive
  • Known hypersensitivity or contraindication to ibuprofen or acetaminophen
  • Inability to complete REDCap questionnaires (including confusion despite training and/or lack of smart phone and/or computer access).
  • Not able to speak and read English language.

Arms & Interventions

Ibuprofen, Acetaminophen, Acetaminophen, Ibuprofen

Experimental

Participants will receive medications for each of four menstrual cycles in the following order: 1. Ibuprofen 2. Acetaminophen 3. Acetaminophen 4. Ibuprofen

Intervention: Ibuprofen (Other)

Acetaminophen, Ibuprofen, Ibuprofen, Acetaminophen

Experimental

Participants will receive medications for each of four menstrual cycles in the following order: 1. Acetaminophen 2. Ibuprofen 3. Ibuprofen 4. Acetaminophen

Intervention: Acetaminophen (Other)

Ibuprofen, Acetaminophen, Acetaminophen, Ibuprofen

Experimental

Participants will receive medications for each of four menstrual cycles in the following order: 1. Ibuprofen 2. Acetaminophen 3. Acetaminophen 4. Ibuprofen

Intervention: Acetaminophen (Other)

Acetaminophen, Ibuprofen, Acetaminophen, Ibuprofen

Experimental

Participants will receive medications for each of four menstrual cycles in the following order: 1. Acetaminophen 2. Ibuprofen 3. Acetaminophen 4. Ibuprofen

Intervention: Acetaminophen (Other)

Acetaminophen, Ibuprofen, Ibuprofen, Acetaminophen

Experimental

Participants will receive medications for each of four menstrual cycles in the following order: 1. Acetaminophen 2. Ibuprofen 3. Ibuprofen 4. Acetaminophen

Intervention: Ibuprofen (Other)

Acetaminophen, Ibuprofen, Acetaminophen, Ibuprofen

Experimental

Participants will receive medications for each of four menstrual cycles in the following order: 1. Acetaminophen 2. Ibuprofen 3. Acetaminophen 4. Ibuprofen

Intervention: Ibuprofen (Other)

Ibuprofen, Acetaminophen, Ibuprofen, Acetaminophen

Experimental

Participants will receive medications for each of four menstrual cycles in the following order: 1. Ibuprofen 2. Acetaminophen 3. Ibuprofen 4. Acetaminophen

Intervention: Acetaminophen (Other)

Ibuprofen, Acetaminophen, Ibuprofen, Acetaminophen

Experimental

Participants will receive medications for each of four menstrual cycles in the following order: 1. Ibuprofen 2. Acetaminophen 3. Ibuprofen 4. Acetaminophen

Intervention: Ibuprofen (Other)

Outcomes

Primary Outcomes

Proportion of participants who enroll out of those who expressed interest in the study

Time Frame: from first contact to informed consent, up to 2 years

Accrual will be determined by the proportion of participants who enroll out of those who expressed interest in the study

Proportion of Participants Who Express Interest in the Study Out of Those Contacted

Time Frame: from first contact to informed consent, up to 2 years

Accrual will be determined as the proportion of participants who express interest in the study out of those contacted

Proportion of participants who meet the minimum adherence needed to contribute effectively to a subsequent study out of those randomized

Time Frame: enrollment to completion of study, approximately 2.5 years

Protocol Adherence will be determined by the proportion of participants who meet the minimum adherence needed to contribute effectively to a subsequent study out of those randomized

Secondary Outcomes

  • Number of Participants who meet exclusion criteria out ot the Total Screened(first recruitment through screening, approximately 2 years)
  • Number of Participants who consented that do not complete baseline visit(first contact through end of study, approximately 2 years)
  • Number of participants who delay participation due to lack of dysmenorrhea(enrollment to end of study, approximately 5 months)
  • Number of participants who delay participation or drop out due to active IBD(enrollment to end of study, approximately 5 months)
  • Number of participants who use study drug for other indications during the study(enrollment to end of study, approximately 5 months)
  • Reasons for Declining Study Participation by Category(first contact through screening, approximately 2 years)
  • Number of subjects who return all stool samples(enrollment through end of study, approximately 5 months)
  • Number of participants who take the study drugs per protocol(enrollment through end of study, approximately 5 months)
  • Number of subjects who complete the Irritable Bowel Syndrome (IBD) surveys(enrollment through end of study, approximately 5 months)
  • Number of subjects who complete all study activities per protocol(enrollment through end of study, approximately 5 months)
  • Number of participants who complete the dysmenorrhea surveys(enrollment through end of study, approximately 5 months)
  • Number of participants who use a rescue medication(enrollment to end of study, approximately 5 months)
  • Reported barriers to compliance with procedures(following completion of fourth menstrual cycle, single interview lasting approximately one hour)
  • Acceptability of study intervention and protocol(following completion of fourth menstrual cycle, single interview lasting approximately one hour)
  • Areas of confusion regarding instructions or protocol(following completion of fourth menstrual cycle, single interview lasting approximately one hour)
  • Interest in stool bio-banking for future research(following completion of fourth menstrual cycle, single interview lasting approximately one hour)

Investigators

Sponsor Class
Other
Responsible Party
Sponsor

Study Sites (1)

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