๐Ÿ›๏ธ Verified NIH Record โ€ข Updated 2026-06-23

A Study to Evaluate the Safety,Tolerability, Pharmacokinetics and Clinical Activity of Mocertatug Rezetecan for Injection in Participants With Advanced Solid Tumors (BEHOLD-1) (NCT06431594)

A Phase 1 Clinical Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Clinical Activity of Mocertatug Rezetecan for Injection in Subjects With Advanced Solid Tumors

๐ŸŸข Recruiting Phase1 ๐Ÿ’Š Investigational Drug / Biologic Sponsor: GlaxoSmithKline

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

The goal of this study is to assess the safety and tolerability of Mocertatug Rezetecan . The study will also see how the levels of Mo-Rez change over time at different dose amount

Who can join: Review the eligibility criteria below.

Location: GSK Investigational Site โ€” Birmingham, Alabama

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 (65 Sites)

Showing the first 25 of 65 sites.

  • GSK Investigational Site โ€” Birmingham, Alabama
  • GSK Investigational Site โ€” Fountain Valley, California
  • GSK Investigational Site โ€” Santa Rosa, California
  • GSK Investigational Site โ€” Lake Mary, Florida
  • GSK Investigational Site โ€” Orlando, Florida
  • GSK Investigational Site โ€” Fairway, Kansas
  • GSK Investigational Site โ€” Boston, Massachusetts
  • GSK Investigational Site โ€” Boston, Massachusetts
  • GSK Investigational Site โ€” Detroit, Michigan
  • GSK Investigational Site โ€” Grand Rapids, Michigan
  • GSK Investigational Site โ€” Minneapolis, Minnesota
  • GSK Investigational Site โ€” Mineola, New York
  • GSK Investigational Site โ€” New York, New York
  • GSK Investigational Site โ€” Portland, Oregon
  • GSK Investigational Site โ€” Nashville, Tennessee
  • GSK Investigational Site โ€” Dallas, Texas
  • GSK Investigational Site โ€” West Valley City, Utah
  • GSK Investigational Site โ€” Seattle, Washington
  • GSK Investigational Site โ€” Cipoletti Rio Negro,
  • GSK Investigational Site โ€” Ciudad de Buenos Aires,
  • GSK Investigational Site โ€” La Plata,
  • GSK Investigational Site โ€” Rosario,
  • GSK Investigational Site โ€” Blacktown, New South Wales
  • GSK Investigational Site โ€” Macquarie University, New South Wales
  • GSK Investigational Site โ€” Leuven,

๐Ÿ“ž Contact the Study Coordinator

Phone: (877) 379-3718

Email: GSKClinicalSupportHD@gsk.com

Coordinator details come directly from the registered NIH protocol. Confirm the study is still recruiting before traveling.

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.

Explore by condition: All Solid Tumors clinical trials

๐Ÿ’ก How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Contact the study coordinator using the phone/email above.
  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†—