🏛️ Verified NIH Record • Updated 2026-02-10

Nous-209 Genetic Vaccine for the Treatment of Microsatellite Unstable Solid Tumors (NCT04041310)

A Phase I/II, Multicenter, Open-Label Study of Nous-209 Genetic Vaccine for the Treatment of Microsatellite Unstable Solid Tumors

🔵 Active, Not Recruiting Phase1 / Phase2 💊 Investigational Drug / Biologic Sponsor: Nouscom SRL

🩺 Plain-English Summary (8th-Grade Level)

Ref: Protocol Version 9.1 05 December 2024. NOUS-209-01 is a multicenter, open-label, multiple cohorts, clinical study, designed to evaluate safety, tolerability, and immunogenicity, and to detect any preliminary evidence of anti-tumor activity of Nous-209 genetic polyvalent vaccine plus pembrolizumab combination therapy in adult subjects with unresectable or metastatic deficient mismatch repair (dMMR) or MSI-H CRC, gastric, or gastro-esophageal junction (G-E junction) tumors. Nous-209 is based on a heterologous prime/boost regimen composed of the Great Ape Adenovirus GAd20-209-FSP used for priming and Modified Vaccinia virus Ankara MVA-209-FSP used for boosting. The Phase I portion of the study is a first-in-human (FIH) clinical study with a primary objective to elucidate the safety and tolerability of Nous-209 in addition to establishing the recommended Phase 2 dose (RP2D), whereas the Phase II was introduced to assess efficacy as the primary objective.

Who can join: Review the eligibility criteria below.

Location: City of Hope Comprehensive Cancer Center — Duarte, California

Age range: 18 Years

📋 "Do I Qualify?" — 1-Minute Self Screener

Instant Checklist

Full eligibility criteria are available on the official NIH protocol. View the criteria ↗

📍 All Participating Trial Locations (46 Sites)

Showing the first 25 of 46 sites.

  • City of Hope Comprehensive Cancer Center — Duarte, California
  • City of Hope Comprehensive Cancer Center — Irvine, California
  • USC Norris Comprehensive Cancer Center — Los Angeles, California
  • USC Norris Comprehensive Cancer Center — Newport Beach, California
  • Mt. Sinai — Miami Beach, Florida
  • Boca Raton Clinical Research — Plantation, Florida
  • Goshen Center for Cancer Care — Goshen, Indiana
  • Johns Hopkins University — Baltimore, Maryland
  • Washington University School of Medicine, Division of Oncology — St Louis, Missouri
  • Roswell Park Comprehensive Cancer Center — Buffalo, New York
  • NYU Langone Medical Center — New York, New York
  • Weill Cornell Medicine / New York-Presbyterian Hospital — New York, New York
  • MD Anderson Cancer Center (MDACC) — Houston, Texas
  • Cliniques Universitaires Saint-Luc - Centre du Cancer — Brussels,
  • Centre Hospitalier de l'Ardenne - Libramont - Clinique du Sein — Libramont,
  • CHU de Liège — Liège,
  • Mount Sinai Hospital — Toronto,
  • Princess Margaret Cancer Center — Toronto,
  • Aorn Sg Moscati — Avellino,
  • Candiolo cancer Center,FPO IRCCS — Candiolo,
  • IRCCS Ospedale San Raffaele — Milan,
  • Fondazione IRCCS Istituto Nazionale dei Tumori — Milan,
  • Ospedale Niguarda — Milan,
  • AOUS Policlinico Le Scotte — Siena,
  • Hospital Universitario de A Coruna — A Coruña,

📞 Contact the Study Coordinator

Phone: (800) 826-4673

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

💰 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 § 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.

💡 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.
🏛️ View Official NIH Record ↗