Clinical Trials Logo

Clinical Trial Summary

This is a Phase 2/3 study that comprises 5 substudies designed to evaluate the efficacy, safety, and tolerability of oral etrasimod as therapy in adult participants with moderately to severely active Crohn's disease (CD) who are refractory or intolerant to at least 1 of the current therapies for CD (ie, corticosteroids, immunosuppressants, or biologics). The overall duration of this study is up to 282 weeks, inclusive of the Screening Period, Treatment Period of up to 274 weeks (Induction, Extension or Maintenance, and Long-term Extension Periods), and the 4-Week Follow-Up Period for safety assessment.


Clinical Trial Description

This study includes 5 substudies: Substudy A - Phase 2: A Phase 2, randomized, double-blind, substudy to assess the safety, tolerability, and efficacy of oral etrasimod therapy in participants with moderate to severe CD that supports the selection of an induction and maintenance dose(s) for Phase 3. Substudy 1 - Phase 2: A Phase 2b randomized, double-blind, placebo-controlled, dose-ranging induction substudy to evaluate etrasimod as induction therapy and select an induction and maintenance dose(s) for continued evaluation in Phase 3. Substudy 2 - Induction: A Phase 3 randomized, double-blind, placebo-controlled substudy to evaluate etrasimod as induction therapy. Substudy 3 - Maintenance: A Phase 3 randomized, double-blind, placebo-controlled substudy to evaluate etrasimod as maintenance therapy. Participants from Substudy 1 and Substudy 2 will be enrolled in Substudy 3. Substudy 4 - Long-Term Extension: A long-term extension substudy for participants who complete at least 52 weeks of treatment. Participants from Substudy 3 and Substudy A are planned to be enrolled in Substudy 4. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04173273
Study type Interventional
Source Pfizer
Contact Pfizer CT.gov Call Center
Phone 1-800-718-1021
Email ClinicalTrials.gov_Inquiries@pfizer.com
Status Recruiting
Phase Phase 3
Start date January 6, 2020
Completion date August 8, 2029

See also
  Status Clinical Trial Phase
Active, not recruiting NCT03815851 - Relationship Between Prophylactic Drainage and Postoperative Complications (PPOI) in Crohn's Patients After Surgery N/A
Not yet recruiting NCT06100289 - A Study of Vedolizumab in Children and Teenagers With Ulcerative Colitis or Crohn's Disease Phase 3
Completed NCT02883452 - A Phase I Study to Evaluate Pharmacokinetics, Efficacy and Safety of CT-P13 Subcutaneous in Patients With Active Crohn's Disease and Ulcerative Colitis Phase 1
Recruiting NCT04777656 - Use of Crohn's Disease Exclusion Diet on Top of Standard Therapy Versus Standard Therapy Alone in Unstable Pediatric Crohn's Disease Patients. Phase 3
Terminated NCT03017014 - A Study to Assess Safety and Effectiveness of Adalimumab for Treating Children and Adolescents With Crohn's Disease in Real Life Conditions
Recruiting NCT06053424 - Positron Emission Tomography Study of Changes in [11C]AZ14132516 Uptake Following Administration of AZD7798 to Healthy Participants and Patients With Crohn's Disease Phase 1
Recruiting NCT05428345 - A Study of Vedolizumab SC Given to Adults With Moderate to Severe Ulcerative Colitis or Crohn's Disease in South Korea
Completed NCT02508012 - Medico-economic Evaluation of the Therapeutic Drug Monitoring of Anti-TNF-α Agents in Inflammatory Bowel Diseases N/A
Terminated NCT02882841 - MOlecular BIomarkers and Adherent and Invasive Escherichia Coli (AIEC) Detection Study In Crohn's Disease Patients N/A
Not yet recruiting NCT02858557 - The Effect of Diet on Microbial Profile and Disease Outcomes in Patients With Inflammatory Bowel Diseases N/A
Completed NCT03010787 - A First Time in Human Study in Healthy Volunteers and Patients Phase 1
Terminated NCT02417974 - Prevention of Recurrence of Crohn's Disease by Fecal Microbiota Therapy (FMT) Phase 2
Completed NCT02542917 - Home Versus Postal Testing for Faecal Calprotectin: a Feasibility Study
Active, not recruiting NCT02316678 - Patient Attitudes and Preferences for Outcomes of Inflammatory Bowel Disease Therapeutics N/A
Completed NCT02265588 - Healthy Approach to Physical and Psychological Problems in Youngsters With IBD (HAPPY-IBD). N/A
Completed NCT02197780 - Head-to-head Comparison of Two Fecal Biomarkers to Screen Children for IBD N/A
Completed NCT02154425 - A Multicenter, Postmarketing Study Evaluating the Concentration of Cimzia® in Mature Breast Milk of Lactating Mothers Phase 1
Completed NCT02193048 - Prospective Evaluation of a Scoring System in Patients Newly Diagnosed With Crohn's Disease
Recruiting NCT02395354 - Comparative Prospective Multicenter Randomized Study of Endoscopic Treatment of Stenosis in Crohn´s Disease N/A
Completed NCT01951326 - Efficacy and Safety of Anti-MAP Therapy in Adult Crohn's Disease Phase 3