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ClinicalTrials.gov record
Active, not recruiting Phase 3 Interventional

An Extension Study for Treatment of Moderately to Severely Active Ulcerative Colitis

ClinicalTrials.gov ID: NCT03950232

Public ClinicalTrials.gov record NCT03950232. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 19, 2026, 11:29 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

An Open-Label Extension Study of Etrasimod in Subjects With Moderately to Severely Active Ulcerative Colitis

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The purpose of this open-label extension (OLE) study is to evaluate the safety and efficacy of etrasimod in participants with moderately to severely active ulcerative colitis (UC) who previously received double-blind treatment (either etrasimod 2 mg per day or placebo) during participation in one of the qualified Phase 3 or Phase 2 double-blind, placebo-controlled parent studies including but not limited to: (APD334-301 \[NCT03945188\] or APD334-302 \[NCT03996369\] or APD334-210 \[NCT04607837\]).

Study identification

NCT ID
NCT03950232
Recruitment status
Active, not recruiting
Study type
Interventional
Phase
Phase 3
Lead sponsor
Pfizer
Industry
Enrollment
896 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
16 Years to 80 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Sep 5, 2019 (Actual)
Primary completion
Jun 19, 2029 (Estimated)
Completion
Jun 19, 2029 (Estimated)
Last update posted
Jul 9, 2026

2019 – 2029

United States locations

U.S. sites
132
U.S. states
18
U.S. cities
47
Facility City State ZIP Site status
Center for Digestive Health (Colonoscopy Location) Dothan Alabama 36301 —
Digestive Health Specialists (IP Address) Dothan Alabama 36301 —
Flowers Hospital (PFT Location) Dothan Alabama 36301 —
Pulmonary Associates (Secondary PFT Location) Dothan Alabama 36301 —
Gut P.C., dba Digestive Health Specialists of the Southeast (IP Address) Dothan Alabama 36305 —
Inland Pulmonary Specialists [PFT Only] Lake Elsinore California 92532 —
A V Pediatrics,Allergy and Family Medicine Lancaster California 93534 —
Advanced Endoscopy and Pain Center(Colonoscopy) Lancaster California 93534 —
Antelope Valley Eye Care(Ophthalmologist) Lancaster California 93534 —
Jatinder S.Pruthi,MD FACG CPI Lancaster California 93534 —
Om Research LLC Lancaster California 93534 —
Renaissance Imaging Center(Chest X-Ray only) Lancaster California 93534 —
United Surgery Center Murrieta [Endoscopy Only] Murrieta California 92562 —
United Medical Doctors Murrieta California 92563 —
Advanced Imaging (Chest X-Ray) Palmdale California 93551 —
California Eye Professionals [OCT Only] Temecula California 92591 —
United Surgery Center Temecula [Endoscopy Only] Temecula California 92592 —
Front Range Endoscopy Center Colorado Springs Colorado 80903 —
Peak Gastroenterology Associates Colorado Springs Colorado 80920 —
Bay Area Chest Physicians, P.A.,-(Pulmonary Function Test) Clearwater Florida 33756 —
West Coast Endoscopy Center (Endoscopy Procedures) Clearwater Florida 33756 —
Northwood Vision- Optical Coherence Tomography (OCT) Clearwater Florida 33761 —
Northwood Vision-Optical Coherence Tomography-(OCT) Clearwater Florida 33761 —
Safety Harbor Surgery (Endoscopy Facility) Clearwater Florida 33761 —
Gastro Florida (Regulatory & Administrative Duties) Clearwater Florida 33762 —
Gastro Florida-(Regulatory & Administrative Duties) Clearwater Florida 33762 —
West Coast Endoscopy Center (Endoscopy Procedures) Clearwater Florida 33765 —
Dr Lee Shettle Largo Florida 33771 —
Florida Center for Gastroenterology Largo Florida 33771 —
Tampa Bay Regional Surgery Center Largo Florida 33771 —
NSB Research New Smyrna Beach Florida 32168 —
Tampa Bay Endoscopy Center (ENDO Only) Tampa Florida 33603 —
Tampa Bay Endoscopy Center Tampa Florida 33603 —
Lab - Processing / Storage Tampa Florida 33606 —
USF Health South Tampa Center for Advanced Healthcare Tampa Florida 33606 —
Pulmonary and Sleep of Tampa Bay (PFT Only) Tampa Florida 33607 —
GCP Clinical Research,LLC Tampa Florida 33609 —
LoCicero Medical Group (PFT Procedure Only) Tampa Florida 33609 —
Lyracore Health Alliance (PFT Procedure only) Tampa Florida 33609 —
Newsome Eye Specialist (OCT Procedures Only) Tampa Florida 33609 —
USF Health Morsani Center For Advanced Healthcare Tampa Florida 33612 —
Guardian Angel Research Center, INC Tampa Florida 33614 —
Perez Eye Center (OCT only) Tampa Florida 33614 —
Florida Medical Clinic, LLC (Endoscopy) Zephyrhills Florida 33542 —
Florida Medical Clinic, LLC (OCT) Zephyrhills Florida 33542 —
Florida Medical Clinic, LLC (PFT) Zephyrhills Florida 33542 —
Florida Medical Clinic, LLC Zephyrhills Florida 33542 —
Emory Pulmonary Function Tedt Lab Atlanta Georgia 30322 —
Emory Pulmonary Group (PFT only) Atlanta Georgia 30324 —
Atlanta Gastroenterology Associates (Endoscopy Location) Atlanta Georgia 30342 —
Atlanta Gastroenterology Associates (endoscopy only) Atlanta Georgia 30342 —
Atlanta Gastroenterology Associates (Screening and Recruitment) Atlanta Georgia 30342 —
Atlanta Gastroenterology Associates(IP only) Atlanta Georgia 30342 —
Atlanta Gastroenterology Associates Atlanta Georgia 30342 —
Emory Saint Joseph Pulmonary Function Test Lab Atlanta Georgia 30342 —
Thomas Eye Group (OCT only) Sandy Springs Georgia 30328 —
Illinois Gastroenterology Group dba GI Alliance (Patients seen; IP Delivered) Gurnee Illinois 60031 —
Medical Eye Services LTD (Ophthalmoscopy with OCT) Gurnee Illinois 60031 —
North Shore Endoscopy Center (Endoscopy) Lake Bluff Illinois 60044 —
Libertyville Imaging Center (Diagnostic Imaging) Libertyville Illinois 60048 —
Eye Medical Center (OCT location) Baton Rouge Louisiana 70808 —
Baton Rouge LA Endoscopy Baton Rouge Louisiana 70809 —
Chevy Chase Pulmonary Associate (PFT Only) Chevy Chase Maryland 20815 —
Friendship Heights Endoscopy Center (Endoscopy Facility Only) Chevy Chase Maryland 20815 —
Retina Group Of Washington (OCT Only) Chevy Chase Maryland 20815 —
Barnes-Jewish West County Hospital (Additional Endoscopy Location) Creve Coeur Missouri 63141 —
Washington University School of Medicine St Louis Missouri 63108 —
Barnes-Jewish Hospital St Louis Missouri 63110 —
Washington University School of Medicine St Louis Missouri 63110 —
Durango Surgical Center Las Vegas Nevada 89113 —
Abrams Eye Institute (OCT) Las Vegas Nevada 89148 —
Lung Center of Nevada Las Vegas Nevada 89148 —
Duke Medical Plaza North Duke Street Durham North Carolina 27704 —
Duke Eye Center (OCT only) Durham North Carolina 27705 —
Duke University Medical Center Durham North Carolina 27710 —
Investigational Drug Services (Pharmacy) Durham North Carolina 27710 —
Brier Creek Medical Pavilion Raleigh North Carolina 27617 —
Geauga Sleep Center (PFT Only) Chardon Ohio 44024 —
UC Health Hoxworth (OCT only) Cincinnati Ohio 45219 —
UC Health Physicians Office Cincinnati Ohio 45219 —
University of Cincinnati Medical Center (PFT and Endoscopy location) Cincinnati Ohio 45219 —
UC Health (Pulmonary Function Testing) Cincinnati Ohio 45229 —
Great Lakes Gastroenterology Research, LLC Mentor Ohio 44060 —
Ophthalmic Physicians Incorporated (OCT Only) Mentor Ohio 44060 —
The Endoscopy Center of Lake County Mentor Ohio 44060 —
Vitreo Retinal Consultants (OCT only) Mentor Ohio 44060 —
Lake Pulmonary Associates (PFT only) Willoughby Hills Ohio 44094 —
Retina Specialist of Ohio (OCT only) Willoughby Hills Ohio 44094 —
Digestive Disease Specialists, Inc. Endoscopy Lab Oklahoma City Oklahoma 73112 —
Pulmonary Physicians of Oklahoma Oklahoma City Oklahoma 73112 —
Retina Center of Oklahoma Oklahoma City Oklahoma 73112 —
Susquehanna Research Group Camp Hill Pennsylvania 17011 —
West Shore Endoscopy Center Camp Hill Pennsylvania 17011 —
Farrell Ophthalmology (OCT only) Harrisburg Pennsylvania 17110 —
Susquehanna Research Group, LLC Harrisburg Pennsylvania 17110 —
Harrisburg Eye Associates (OCT only) Harrisburg Pennsylvania 17111 —
Medical Arts Allergy,PC (PFT Only) Harrisburg Pennsylvania 17111 —
Pulmonary and Critical Care Medicine Associates (PFT only) Lemoyne Pennsylvania 17043 —
Cross Timbers Surgery Center(Proctosigmoidoscopy) Arlington Texas 76012 —
Envision Imaging(Chest X-Ray) Arlington Texas 76012 —
Texas Clinical Research Institute Arlington Texas 76012 —
Texas Pulmonary and Critical Care Associates(Pulmonary Function Test) Arlington Texas 76012 —
Texas Retina Associates(Ophthalmoscopy) Arlington Texas 76012 —
Inquest Clinical Research Baytown Texas 77521 —
Texas Retina Associates (OCT Location) Grapevine Texas 76051 —
Plaza Medical Center Houston Texas 77004 —
East Houston Physicians Group Houston Texas 77029 —
Baylor College of Medicine- Baylor Medical Center Houston Texas 77030 —
Cross Eye Center (Optical Coherence Tomography) Houston Texas 77401 —
Lonestar Endoscopy(Endoscopy Location) Keller Texas 76248 —
Christus Santa Rosa Physicians Ambulatory Surgery Center New Braunfels (Endoscopy) New Braunfels Texas 78130 —
Tyrus Schroeder (PFT) New Braunfels Texas 78130 —
Central Texas Eye Center (OCT) San Marcos Texas 78666 —
Christus Santa Rosa Physicians Ambulatory Surgery Center San Marcos (Endoscopy) San Marcos Texas 78666 —
Envision Imaging (Chest X-ray location) Southlake Texas 76092 —
Lonestar Endoscopy (Endoscopy Location) Southlake Texas 76092 —
Christus Trinity Mother Frances Endosopy Center ( endoscopies only) Tyler Texas 75701 —
Heaton Eye Associates (OCT only) Tyler Texas 75701 —
Touchstone Imaging Tyler (chest x-rays only) Tyler Texas 75701 —
Tyler Internal Medicine (PFT's only) Tyler Texas 75701 —
UT Health East Texas Physicians (pulmonary functions only) Tyler Texas 75701 —
Gastro Health & Nutrition Victoria Texas 77904 —
Harman Eye Center (OCT only) Forest Virginia 24551 —
Lynchburg Pulmonary Associates, Inc. (PFT only) Lynchburg Virginia 24501 —
Blue Ridge Medical Research Lynchburg Virginia 24502 —
Swedish Endoscopy Center - Issaquah Issaquah Washington 98029 —
Pacific Northwest Retina Seattle Washington 98104 —
Richard Bensinger, MD Seattle Washington 98104 —
Swedish Gastroenterology Seattle Washington 98104 —
Swedish Medical Center First Hill Endoscopy Center Seattle Washington 98122 —
Swedish Medical Center First Hill Seattle Washington 98122 —
Froedtert Memorial Lutheran Hospital Milwaukee Wisconsin 53226 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 338 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03950232, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jul 9, 2026 · Synced Oct 19, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT03950232 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →