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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT06221111
Other study ID # 23-006559
Secondary ID
Status Recruiting
Phase Phase 2
First received
Last updated
Start date June 6, 2024
Est. completion date June 2025

Study information

Verified date June 2024
Source Mayo Clinic
Contact Deborah Eckert, RN
Phone 507-538-5860
Email Eckert.Deborah@mayo.edu
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The primary aim of this study is to evaluate the efficacy of rimegepant on abdominal pain scores in participants with non-constipation IBS.


Description:

Irritable bowel syndrome (IBS) and, particularly, the pain component of IBS lack effective treatments. Antispasmodics, antidepressants and hypnotherapy have all been proposed for the treatment of pain. Their effectiveness in clinical practice is disappointing, despite meta-analyses suggesting efficacy. The study hypotheses are: that rimegepant will be safe, well-tolerated, and will improve abdominal pain in participants with non-constipation IBS. The primary aim is to evaluate the efficacy of rimegepant on abdominal pain scores in participants with non-constipation IBS. Secondary aims of this study are: - 1: To describe the effect of rimegepant on rectal compliance in participants with IBS and chronic abdominal pain. - 2: To evaluate the effects of rimegepant on rectal sensation based on ascending method of limits and on graded rapid phasic distensions in participants with non-constipation IBS and chronic abdominal pain. - 3: To evaluate effects of rimegepant on overall colonic transit in participants with non-constipation IBS and chronic abdominal pain. - 4: To evaluate safety of rimegepant in participants with non-constipation IBS and chronic abdominal pain Methods: IBS-pain participants will be selected according to the Rome III criteria. Trial participants will continue to receive the same medical therapy throughout the baseline and treatment periods. The study design is a randomized, double-blind placebo-controlled trial of rimegepant at doses and route of administration approved by the FDA for the prophylaxis of migraine headache. The trial period will consist of a two week run-in period, and 4 week treatment period. Participants will complete a daily diary regarding abdominal pain and stool consistency. They will also complete questionnaires studies of anxiety and depression and IBS-QOL. An established and validated method using rectal barostat device will be used to measure rectal compliance and sensation. The standard scintigraphic method to measure colonic transit established in the Clinical Research Trials Unit (CRTU) at Mayo Clinic Rochester will be used to evaluate changes in colonic transit. Anticipated results and Significance: Rimegepant, at doses and mode of administration approved by FDA for the prophylaxis of migraine headache, will be efficacious in the reduction of abdominal pain and rectal sensation in participants with non-constipation IBS and abdominal pain. This study will provide an early signal of efficacy that may lead to future randomized, controlled trials.


Recruitment information / eligibility

Status Recruiting
Enrollment 24
Est. completion date June 2025
Est. primary completion date May 2025
Accepts healthy volunteers No
Gender All
Age group 18 Years to 70 Years
Eligibility Twenty-four participants with non-constipation IBS and chronic abdominal pain will be recruited for enrollment. Participants will meet specific Rome III IBS diagnostic criteria. Inclusion criteria: - Participants will be 18-70 years of age. - Participants will have non-constipation IBS [that is IBS-D (diarrhea), IBS-M (mixed), or IBS-U (unspecified)] with chronic abdominal pain diagnosed in their medical records at Mayo Clinic with chronic pain documented for = 3 months. - Participants will have subjective pain ratings of = 30 on the 100 mm VAS during at least 1 of the 2 run-in weeks for enrollment. - Participants will be capable of providing informed consent. Exclusion criteria: - Diagnosis of moderate-severe depression as per BDI =18; - Alcohol or illicit substance dependence or abuse in the past 12 months; - Dementia, unprovoked seizure history, seizure disorder; - Pregnancy (all women of childbearing potential will be required to have a negative pregnancy test prior to initiation, and will be on a highly effective method of contraception, as detailed in the consent form); - Significant change or increase in antidepressant or pain medications within the last four weeks; significant change in primary treatment interventions for pain in the past four weeks; - Medically unstable - Severe hepatic or renal impairment, such as baseline AST or ALT = 2.5 X upper normal limit or end-stage renal disease with estimated glomerular filtration rate or creatinine clearance <15mL/min. Although Rimegepant is rarely associated with abnormal circulating liver enzymes, we shall exclude patients with baseline AST or ALT equal to or greater than 2.5 times the upper limit of normal. - Concomitant use of strong CYP3A4 inhibitors and strong or moderate CYP3A4 inducers. - Participants who report nausea several times per week or daily on the baseline bowel disease questionnaire (question # 16) will be excluded from the study because of the low risk of nausea induced by the treatment which was estimated at approximately 3% for rimegepant compared to 1% for placebo.

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Rimegepant 75 MG [Nurtec]
placebo controlled trial

Locations

Country Name City State
United States Mayo Clinic in Rochester Rochester Minnesota

Sponsors (2)

Lead Sponsor Collaborator
Mayo Clinic Pfizer

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary abdominal pain daily abdominal pain scores measured on 100mm Visual analog scale in participants with non-constipation IBS with 0 and 100 as minimum and maximum values and higher scores indicating worse pain . daily over 4 weeks
Secondary rectal sensation rectal sensation based on ascending method of limits and on graded phasic distensions on final day of 4 week study
Secondary rectal compliance rectal compliance in participants with non-constipation IBS and chronic abdominal pain on final day of 4 week study
Secondary colonic transit overall colonic transit by scintigraphy during days 26-28 of 4 week study
Secondary safety based on adverse effects evaluate safety of rimegepant in non-constipation IBS and chronic abdominal pain. during the 4 week study
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