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Terminated Phase 2 Interventional Results available

A Study to Assess Efficacy and Safety of SER-287 in Adults With Active Mild-to-Moderate Ulcerative Colitis

ClinicalTrials.gov ID: NCT03759041

Public ClinicalTrials.gov record NCT03759041. 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 Jul 23, 2026, 11:47 PM EDT

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

Official title

ECO-RESET: A Phase 2B, Randomized, Double-Blind, Placebo-Controlled, Multiple Dose, Multicenter Study to Assess Efficacy and Safety of SER-287 in Adults With Active Mild-to-Moderate Ulcerative Colitis

Study identification

NCT ID
NCT03759041
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 2
Lead sponsor
Seres Therapeutics, Inc.
Industry
Enrollment
203 participants

Conditions and interventions

Interventions

  • Vancomycin Pre-Treatment Drug
  • Placebo for Vancomycin Pre-Treatment Drug
  • SER-287 Drug
  • Placebo for SER-287 Drug

Drug

Eligibility (public fields only)

Age range
18 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
Dec 18, 2018
Primary completion
May 27, 2021
Completion
Oct 12, 2021
Last update posted
Aug 11, 2022

2018 – 2021

United States locations

U.S. sites
81
U.S. states
28
U.S. cities
73
Facility City State ZIP Site status
(Investigator site) Phoenix Arizona 85018
(Investigator site) North Little Rock Arkansas 72117
(Investigator site) La Jolla California 92037
(Investigator site) Lancaster California 93534
(Investigator site) Los Angeles California 90067
(Investigator site) Mountain View California 94040
(Investigator site) San Diego California 92103
(Investigator site) San Diego California 92123
(Investigator site) Wheat Ridge Colorado 80033
(Investigator site) Danbury Connecticut 06810
(Investigator site) Hamden Connecticut 06518
(Investigator site) Boca Raton Florida 33487
(Investigator site) Clearwater Florida 33762
(Investigator site) Crystal River Florida 34429
(Investigator site) Fort Lauderdale Florida 33308
(Investigator site) Hialeah Florida 33012
(Investigator site) Jacksonville Florida 32256
(Investigator site) Miami Florida 33136
(Investigator site) Miami Florida 33176
(Investigator site) Naples Florida 34102
(Investigator site) Ocala Florida 34474
(Investigator site) Orlando Florida 32803
(Investigator site) Pompano Beach Florida 33060
(Investigator site) Port Orange Florida 32127
(Investigator site) Tampa Florida 33609
(Investigator site) Athens Georgia 30607
(Investigator site) Atlanta Georgia 30322
(Investigator site) Marietta Georgia 30060
(Investigator site) Chicago Illinois 60611
(Investigator site) Chicago Illinois 60612
(Investigator site) Chicago Illinois 60637
(Investigator site) Indianapolis Indiana 46202
(Investigator site) Lexington Kentucky 40536
(Investigator site) Lake Charles Louisiana 70601
(Investigator site) Metairie Louisiana 70006
(Investigator site) Monroe Louisiana 71201
(Investigator site) New Orleans Louisiana 70121
(Investigator site) Shreveport Louisiana 71105
(Investigator site) Baltimore Maryland 21287
(Investigator site) Glen Burnie Maryland 21208
(Investigator site) Ann Arbor Michigan 48109
(Investigator site) Farmington Hills Michigan 48334
(Investigator site) Rochester Minnesota 55905
(Investigator site) Bridgeton Missouri 63044
(Investigator site) Creve Coeur Missouri 63141
(Investigator site) Las Vegas Nevada 89123
(Investigator site) Reno Nevada 89511
(Investigator site) Lebanon New Hampshire 03756
(Investigator site) Great Neck New York 11021
(Investigator site) Hartsdale New York 10530
(Investigator site) New York New York 10016
(Investigator site) New York New York 10032
(Investigator site) Asheville North Carolina 28801
(Investigator site) Chapel Hill North Carolina 27599
(Investigator site) Durham North Carolina 27710
(Investigator site) Raleigh North Carolina 27612
(Investigator site) Winston-Salem North Carolina 27103
(Investigator site) Winston-Salem North Carolina 27157
(Investigator site) Cincinnati Ohio 45219
(Investigator site) Oklahoma City Oklahoma 73104
(Investigator site) Columbia South Carolina 29203
(Investigator site) Greenville South Carolina 29615
(Investigator site) Memphis Tennessee 38119
(Investigator site) Nashville Tennessee 37212
(Investigator site) Bedford Texas 76022
(Investigator site) Fort Sam Houston Texas 78219
(Investigator site) Houston Texas 77030
(Investigator site) Houston Texas 77043
(Investigator site) Houston Texas 77090
(Investigator site) McAllen Texas 78504
(Investigator site) San Antonio Texas 78229
(Investigator site) Temple Texas 76508
(Investigator site) Ogden Utah 84405
(Investigator site) Salt Lake City Utah 84124
(Investigator site) Leesburg Virginia 20176
(Investigator site) Lynchburg Virginia 24502
(Investigator site) Reston Virginia 20191
(Investigator site) Richmond Virginia 23249
(Investigator site) Spokane Washington 99202
(Investigator site) Madison Wisconsin 53792
(Investigator site) Milwaukee Wisconsin 53215

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 12 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03759041, 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 Aug 11, 2022 · Synced Jul 23, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03759041 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →