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Terminated Phase 2 Interventional Results available

A Study With GB004 in Adult Subjects With Active Ulcerative Colitis (UC)

ClinicalTrials.gov ID: NCT04556383

Public ClinicalTrials.gov record NCT04556383. 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 20, 2026, 9:25 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

A Phase 2, Randomized, Double-blind, Placebo-controlled, Multi-center Study to Evaluate GB004 in Adult Subjects With Mild-to-moderate Active Ulcerative Colitis

Brief summary

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

A 2-part study, comprising of a 36-week placebo-controlled period (PCP) and a 24-week open-label extension (OLE) period, to assess the efficacy and safety of 2 dose regimens of GB004 when added to background UC therapy of 5-aminosalicylate (5-ASA) with or without systemic steroids.

Study identification

NCT ID
NCT04556383
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 2
Lead sponsor
GB004, Inc.
Industry
Enrollment
236 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years and older
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
Oct 19, 2020 (Actual)
Primary completion
Jun 1, 2022 (Actual)
Completion
Jun 1, 2022 (Actual)
Last update posted
Aug 1, 2023

2020 – 2022

United States locations

U.S. sites
13
U.S. states
9
U.S. cities
13
Facility City State ZIP Site status
B G Clinical Research, Inc. Encinitas California 92024 —
Gastro Care Institute Lancaster California 93534 —
Texas Digestive Disease Consultants Baton Rouge Louisiana 70809 —
Gastroenterology Clinic of Acadiana Lafayette Louisiana 70503 —
Delta Research Partners Monroe Louisiana 71201 —
Huron Gastroenterology Associates Ypsilanti Michigan 48197 —
Mayo Clinic Rochester Minnesota 55905 —
Las Vegas Medical Research Las Vegas Nevada 89113 —
Freehold Endoscopy Associates, LLC d/b/a/ Endoscopy Center of Monmouth County Freehold New Jersey 07728 —
Great Lakes Gastroenterology Research, LLC Mentor Ohio 44060 —
Texas Digestive Disease Consultant Southlake Texas 76092 —
Washington Gastroenterology, PLLC Bellevue Washington 98004 —
Washington Gastroenterology, PLCC Tacoma Washington 98405 —

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 64 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04556383, 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 1, 2023 · Synced Oct 20, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT04556383 live on ClinicalTrials.gov.

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