๐Ÿ›๏ธ Verified NIH Record โ€ข Updated 2026-07-30

A Study of Guselkumab in Participants With Moderately to Severely Active Ulcerative Colitis (NCT04033445)

CNTO1959UCO3001: A Phase 2b/3, Randomized, Double-blind, Placebo-controlled, Parallel-group, Multicenter Protocol to Evaluate the Efficacy and Safety of Guselkumab in Participants With Moderately to Severely Active Ulcerative Colitis

๐Ÿ”ต Active, Not Recruiting Phase2 / Phase3 ๐Ÿ’Š Investigational Drug / Biologic Sponsor: Janssen Research & Development, LLC

๐Ÿฉบ Plain-English Summary (8th-Grade Level)

The purpose of this study is to evaluate the efficacy and safety of guselkumab in participants with moderately to severely active ulcerative colitis (UC).

Who can join: Review the eligibility criteria below.

Location: Om Research LLC โ€” Lancaster, California

Age range: 18 Years

๐Ÿงช Interventions in This Study

๐Ÿ“‹ "Do I Qualify?" โ€” 1-Minute Self Screener

Instant Checklist

Full eligibility criteria are available on the official NIH protocol. View the criteria โ†—

๐Ÿ“ All Participating Trial Locations (392 Sites)

Showing the first 25 of 392 sites.

  • Om Research LLC โ€” Lancaster, California
  • UCLA โ€” Los Angeles, California
  • Peak Gastroenterology Associates 1 โ€” Colorado Springs, Colorado
  • Florida Research Network, LLC โ€” Gainesville, Florida
  • University of Florida Health Jacksonville โ€” Gainesville, Florida
  • Harmony Medical Research Institute, Inc. โ€” Hialeah, Florida
  • UF Health Jacksonville Gastroenterology Emerson โ€” Jacksonville, Florida
  • I.H.S. Health. LLC โ€” Kissimmee, Florida
  • Columbus Clinical Services LLC โ€” Miami, Florida
  • Vista Health Research, LLC โ€” Miami, Florida
  • Orlando Health โ€” Orlando, Florida
  • Care Access Research, Orlando โ€” Orlando, Florida
  • Synexus Clinical Research US Inc 2 โ€” Pinellas Park, Florida
  • Univ. of South Florida Med. Group โ€” Tampa, Florida
  • Atlanta Gastroenterology Associates โ€” Atlanta, Georgia
  • Morehouse School of Medicine โ€” Atlanta, Georgia
  • The Emory Clinic โ€” Atlanta, Georgia
  • Atlanta Gastroenterology Associates 1 โ€” Atlanta, Georgia
  • Atlanta Center For Gastroenterology โ€” Decatur, Georgia
  • Gastroenterolgy Associates of Central GA โ€” Macon, Georgia
  • University of Chicago โ€” Chicago, Illinois
  • Health Science Research Center โ€” Pratt, Kansas
  • Tri-State Gastroenterology Assoc โ€” Crestview Hills, Kentucky
  • Baystate Medical Center โ€” Springfield, Massachusetts
  • Clinical Research Institute of Michigan, LLC โ€” Clinton Township, Michigan

๐Ÿ’ฐ Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA ยง 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

๐Ÿ’ก How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Review the official NIH record below to find the coordinating site.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
๐Ÿ›๏ธ View Official NIH Record โ†—