A Study Evaluating the Efficacy and Safety of Oral Etrasimod in the Treatment of Adult Participants With Moderately to Severely Active Crohn's Disease

Study Purpose

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 28-Day 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.

Recruitment Criteria

Accepts Healthy Volunteers Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms	No
Study Type An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes. An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes. Searching Both is inclusive of interventional and observational studies.	Interventional
Eligible Ages	18 Years - 80 Years
Gender	All

More Inclusion & Exclusion Criteria

Eligibility criteria applicable to all substudies:

Inclusion Criteria:

- Men or women 18 to 80 years of age, - Ability to provide written informed consent or assent and to be compliant with the schedule of protocol assessments.

- Diagnosed with Crohn's disease (CD) ≥ 3 months.

- Have moderately to severely active CD at Screening.

- Demonstrated inadequate response (ie, primary non-response), loss of response to, or intolerance to ≥ 1 of the following therapies for the treatment of CD: 1.

Oral corticosteroids (eg, prednisone or its equivalent, budesonide) 2. Immunosuppressants (eg, azathioprine [AZA], 6 mercaptopurine [6-MP], or methotrexate [MTX]) 3. Tumor necrosis factor alpha (TNFα) antagonists (eg, infliximab, adalimumab, certolizumab pegol, or biosimilars) 4. Integrin receptor antagonist (eg, vedolizumab) 5. Interleukin -12/-23 antagonist (eg, ustekinumab)

- Females of childbearing potential must be nonpregnant.

- Females of childbearing potential and males must use contraception.

Exclusion Criteria:

- History of inadequate response (ie, primary non-response) to agents from ≥ 2 classes of biologics marketed for the treatment of CD (ie, TNFα antagonists, interleukin 12/ 23 antagonist, and integrin receptor antagonist).

- Have ulcerative colitis, indeterminate colitis, microscopic colitis, ischemic colitis, radiation colitis, diverticular disease associated colitis, toxic megacolon, or active infectious colitis or test positive for Clostridioides difficile toxin at Screening.

- Have functional or post-operative short-bowel syndrome or any associated complications that may require surgery or interfere with efficacy assessments.

- Had surgical treatment for intra abdominal abscesses ≤ 8 weeks prior to randomization or surgical treatment for perianal abscesses ≤ 4 weeks prior to randomization.

- Had intestinal resection ≤ 24 weeks prior to randomization or other intra abdominal surgeries ≤ 12 weeks prior to randomization.

- Have an ileostomy or a colostomy.

Inclusion Criteria for Substudy 3:

- Participants who entered the Extended Induction Period of Substudy 1 and Substudy 2 must have completed the Extended Induction -Week 6 Visit.

Inclusion Criteria for Substudy 4: - Participant must have completed the Week 52 Visit of Substudy 3 or the Week 66 Visit of Substudy A

Trial Details

Trial ID: This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.	NCT04173273
Phase Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans. Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data. Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs. Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.	Phase 2
Lead Sponsor The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.	Arena Pharmaceuticals
Principal Investigator The person who is responsible for the scientific and technical direction of the entire clinical study.	Pfizer CT.gov Call Center
Principal Investigator Affiliation	Pfizer
Agency Class Category of organization(s) involved as sponsor (and collaborator) supporting the trial.	Industry
Overall Status	Recruiting
Countries	Argentina, Australia, Austria, Belarus, Belgium, Bosnia and Herzegovina, Bulgaria, Canada, Chile, Colombia, Croatia, Czechia, Denmark, Egypt, France, Georgia, Germany, Greece, Hungary, Ireland, Israel, Italy, Japan, Korea, Republic of, Lebanon, Lithuania, Malaysia, Mexico, Moldova, Republic of, Netherlands, Norway, Philippines, Poland, Portugal, Puerto Rico, Romania, Russian Federation, Serbia, Slovakia, South Africa, Spain, Switzerland, Turkey, Ukraine, United Kingdom, United States
Conditions The disease, disorder, syndrome, illness, or injury that is being studied.	Crohn's Disease
Study Website:	View Trial Website

Additional Details

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 A is currently closed for enrollment. 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 1 is currently enrolling participants. 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.

Arms & Interventions

Arms

Experimental: Etrasimod Dose A

Experimental: Etrasimod Dose B

Placebo Comparator: Placebo

Interventions

Drug: - Etrasimod

Dose A taken by mouth, once daily.

Drug: - Etrasimod

Dose B taken by mouth, once daily.

Drug: - Placebo

Etrasimod matching placebo tablet taken by mouth, once daily.

Contact a Trial Team

If you are interested in learning more about this trial, find the trial site nearest to your location and contact the site coordinator via email or phone. We also strongly recommend that you consult with your healthcare provider about the trials that may interest you and refer to our terms of service below.

Dothan, Alabama

Status

Recruiting

Address

Center for Digestive Health (Endoscopy Location)

Dothan, Alabama, 36301

Site Contact

Clinical Trial Finder