๐Ÿ›๏ธ Verified NIH Record โ€ข Updated 2026-06-16

Testing a Combination of Vaccines for Cancer Prevention in Lynch Syndrome (NCT05419011)

A Phase IIB Clinical Trial of the Multitargeted Recombinant Adenovirus 5 (CEA/MUC1/Brachyury) Vaccines (TRI-AD5) and IL-15 Superagonist N-803 in Lynch Syndrome

๐Ÿ”ต Active, Not Recruiting Phase2 ๐Ÿ’Š Investigational Drug / Biologic Sponsor: National Cancer Institute (NCI)

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

This phase IIb trial tests whether Tri-Ad5 in combination with N-803 works to prevent colon and other cancers in participants with Lynch syndrome. Each of the three injections in Tri-Ad5 vaccine contain a different substance that is in precancer and cancer cells. Injecting these substances may cause the immune system to develop a defense against cancer that recognizes and destroys any precancer and cancer cells that produce these proteins in the future. N-803 may increase immune responses to other vaccines. Giving Tri-Ad5 in combination with immune enhancing N-803 may lower the chance of developing colon and other cancers in participants with Lynch syndrome.

Who can join: Review the eligibility criteria below.

Location: Mayo Clinic Hospital in Arizona โ€” Phoenix, Arizona

Age range: 18 Years

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 (14 Sites)

  • Mayo Clinic Hospital in Arizona โ€” Phoenix, Arizona
  • University of Arizona Cancer Center - Prevention Research Clinic โ€” Tucson, Arizona
  • UCSF Medical Center-Parnassus โ€” San Francisco, California
  • UCHealth University of Colorado Hospital โ€” Aurora, Colorado
  • Northwestern University โ€” Chicago, Illinois
  • University of Kansas Cancer Center โ€” Kansas City, Kansas
  • Dana-Farber Cancer Institute โ€” Boston, Massachusetts
  • University of Michigan Rogel Cancer Center โ€” Ann Arbor, Michigan
  • Mayo Clinic in Rochester โ€” Rochester, Minnesota
  • Cleveland Clinic Foundation โ€” Cleveland, Ohio
  • Ohio State University Comprehensive Cancer Center โ€” Columbus, Ohio
  • Fox Chase Cancer Center โ€” Philadelphia, Pennsylvania
  • UT MD Anderson Cancer Center โ€” Houston, Texas
  • University of Puerto Rico โ€” San Juan,

๐Ÿ“ž Contact the Study Coordinator

Phone: (800) 664-4580

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.

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†—