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An Observational Study of Etrasimod in Adult Patients With Moderate to Severe Ulcerative Colitis

A Multi-Center, Prospective, Non-Interventional Study of Real-World Effectiveness of Etrasimod in Patients With Ulcerative Colitis (ENDEAVOUR-UC)

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06398626
Acronym
ENDEAVOUR-UC
Enrollment
300
Registered
2024-05-03
Start date
2024-09-17
Completion date
2028-07-07
Last updated
2026-07-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Colitis, Ulcerative

Brief summary

The purpose of this observational study is to learn about the effects of etrasimod as a treatment for adult patients with moderate to severe ulcerative colitis. Patients will be treated according to standard of care and will only be included in the study if etrasimod is the best treatment of choice according to the physician and they have not previously taken etrasimod. All patients will be prescribed etrasimod according to standard of care. Tests and doctor visits will be conducted according to standard of care with the exception of health questionnaires about ulcerative colitis symptoms. These questionnaires will be completed by patients at various timepoints during the study using their mobile phone, tablet, or computer. The study is 52 weeks with 28 days of safety follow up. The effects of etrasimod will be analyzed for each patient comparing their disease activity prior to the start of etrasimod.

Interventions

DRUGEtrasimod

As provided in real world practice

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 64 Years
Healthy volunteers
No

Inclusion criteria

1. Age ≥ 18 years and \< 65 years at baseline 2. Patients with confirmed diagnosis of UC who are prescribed etrasimod for moderately to severely active UC 3. Evidence of a personally signed and dated ICD indicating that the patient (or a legally acceptable representative)has been informed of all pertinent aspects of the study

Exclusion criteria

1. The presence of clinical findings suggestive of Crohn's disease 2. Severe extensive colitis evidenced by: 1. Physician judgement that the patient is likely to require hospitalization for medical or surgical intervention of any kind for UC (e.g., colectomy) within 12 weeks 2. Current evidence of acute severe UC, fulminant colitis, or toxic megacolon 3. Patients with a stoma or planned UC surgical intervention requiring hospitalization 4. Prior/Concomitant Therapy: 1. Any previous exposure to etrasimod, including participation in the etrasimod clinical program 2. Any co-medication with one of the following conventional therapies: methotrexate or a thiopurine (azathioprine, mercaptopurine, or tioguanine) 3. Any co-medication with one of the following advanced therapies for UC: biologics (a TNF, integrin or cytokine antagonist; JAKi \[filgotinib, tofacitinib, or upadacitinib\]) or with any other S1P receptor modulator 5. Unwillingness or inability to download the web-based tool to complete ePROs on a personal device or not capable of using the web-based tool 6. Investigator site staff or Pfizer employees directly involved in the conduct of the study, site staff otherwise supervised by the investigator, and their respective family

Design outcomes

Primary

MeasureTime frameDescription
Proportion of patients with symptomatic remissionWeek 12Symptomatic remission is defined as partial Modified Mayo Score (pMMS) stool frequency subscore (SFS) = 0 (or = 1 with a ≥ 1-point decrease from baseline) and (RBS) rectal bleeding subscore = 0

Secondary

MeasureTime frameDescription
Proportion of patients with symptomatic remissionWeeks 24, 36, 52Symptomatic remission is defined as partial Modified Mayo Score (pMMS) stool frequency subscore (SFS) = 0 (or = 1 with a ≥ 1-point decrease from baseline) and (RBS) rectal bleeding subscore = 0
Proportion of patients with symptomatic responseWeeks 12, 24, 36, 52Symptomatic response defined as a decrease from baseline ≥ 30% in pMMS composite RBS and SFS
Proportion of patients with clinical remissionWeeks 12, 24, 36, 52Clinical remission is defined as a pMMS ≤ 2 points, with no individual subscores \> 1 point.
Proportion of patients with steroid-free symptomatic remission (among all patients and among patients in symptomatic remission)Weeks 24, 36, 52Steroid-free symptomatic remission is defined as patients in symptomatic remission who did not take any corticosteroid treatment for 8 weeks prior to the visit/timepoint
Proportion of patients with steroid-free clinical remission (among all patients and among patients in clinical remission)Weeks 24, 36, 52Steroid-free clinical remission is defined as patients in clinical remission (using a pMMS) who did not take any corticosteroid treatment for 8 weeks prior to the visit/timepoint
Change from baseline in fatigueWeeks 12, 24, 36, 52Change from baseline in the Functional Assessment of Chronic Illness Therapy (FACIT) Fatigue score Normalization of fatigue is defined as a FACIT Fatigue score ≥ 40.1
Change from baseline of bowel urgencyWeeks 12, 24, 36, 52Change from baseline in bowel urgency on a 0 (no urgency) - 10 (worst possible urgency) numeric rating scale
Proportion of patients with a clinically meaningful improvement in bowel urgencyWeeks 12, 24, 36, 52Clinically meaningful improvement in bowel urgency is defined as ≥ 3-point decrease from baseline among patients with baseline bowel urgency score ≥ 3
Proportion of patients in bowel urgency remissionWeeks 12, 24, 36, 52Bowel urgency remission is defined as a bowel urgency score ≤ 1 among patients with a baseline bowel urgency score ≥ 3 and the overall population
Proportion of patients with complete bowel urgency remissionWeeks 12, 24, 36, 52Complete bowel urgency remission is defined as a bowel urgency Numeric Rating Scale score = 0
Change from baseline in abdominal painWeeks 12, 24, 36, 52Change from baseline in abdominal pain on a 0 (no pain) - 10 (pain as bad as can imagine) numeric rating scale
Proportion of patients with abdominal pain remissionWeeks 12, 24, 36, 52Abdominal pain remission is defined as an abdominal pain Numeric Rating Scale score = 0

Countries

United States

Contacts

CONTACTPfizer CT.gov Call Center
ClinicalTrials.gov_Inquiries@pfizer.com1-800-718-1021
STUDY_DIRECTORPfizer CT.gov Call Center

Pfizer

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 10, 2026