Clinical trial Recruiting at 28 sites Phase 2 Interventional Ages 18 and up

Rina-S for advanced gastrointestinal cancers

Official title: A Phase 2, Open-label, Multicohort, Study of Rinatabart Sesutecan (Rina S) in Participants With Advanced Gastrointestinal (GI) Cancers

Run by Genmab · NCT07539311 · Data updated 2026-11-12

This Phase 2 trial will try Rina-S alone in people with metastatic or unresectable gastrointestinal cancers that have progressed after standard treatments to see if it can control the disease.

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment160 (estimated)
SponsorGenmab
Industry-sponsored
Locations28 sites (Los Angeles, California and 27 other locations)
StatusRecruiting
StartedMay 11, 2026
Main results expectedSeptember 2028
Study endsNovember 2028
Registry record updatedNovember 3, 2026
Trial IDNCT07539311 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults with histologically confirmed metastatic or unresectable gastrointestinal cancer, measurable disease per RECIST v1.1, ECOG 0–1, adequate organ and marrow function, and disease progression after prior standard therapies are the intended participants.

Probably not a fit

Patients with significant non-malignant gastrointestinal disorders (for example, diarrhea > grade 1), poor organ function, ECOG >1, or who are candidates for curative treatment are unlikely to benefit from this trial.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is an open-label, multicenter, multi-cohort Phase 2 trial testing Rina-S as a single agent in participants with advanced GI cancers who have progressed on or after standard-of-care therapies. Up to about 160 participants worldwide will receive active Rina-S and attend regular clinic visits for safety labs, ECGs, imaging, and other assessments. The study includes evaluation of safety, efficacy, pharmacokinetics, and pharmacodynamics, with participants required to have measurable disease per RECIST v1.1 and ECOG performance status 0–1. Average participant follow-up is expected to be about 22 months, with an average treatment duration of about 12 months.

Why it matters

Potential benefit: If successful, Rina-S could shrink tumors or slow disease progression for people with advanced GI cancers who have exhausted standard treatments.

How similar studies have gone: Previous single-agent targeted or immune therapies in advanced GI cancers have produced meaningful responses in selected molecular subgroups but have shown variable results across tumor types.

Who can join: the full rules

Show full inclusion / exclusion criteria
Key Inclusion Criteria:

• All study cohorts

* Participant has histologically or cytologically confirmed GI cancer.
* Participant has documented metastatic or unresectable disease, not amenable to treatment with curative intent.
* Participant has measurable disease per the Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 at baseline.
* Participant must have radiological disease progression while on or after receiving the most recent regimen.
* Participant has Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
* Participant has life expectancy ≥3 months.
* Participant must be able to provide a newly obtained or archival tissue sample.
* Participant must have adequate organ and bone marrow function, per laboratory test results prior to Rina-S administration.

Key Exclusion Criteria (all study cohorts):

* Participant has clinically significant non-malignant gastrointestinal disorders, including but not limited to, diarrhea \> grade 1, ulcerative colitis, inflammatory bowel disease.
* Participants with recent (up to 4 weeks) history of significant gastrointestinal bleeding, current cancer related ulcerations, fistula, abscess or recent perforation (within 4 to 6 weeks).
* Participant has a past or current malignancy other than the inclusion diagnosis before the planned first dose of trial treatment, or any evidence of residual disease from a previously diagnosed malignancy.
* Participants with newly identified or known unstable (eg, progressing brain metastases) or symptomatic central nervous system (CNS) metastases or history of carcinomatous meningitis (also known as leptomeningeal disease).
* Prior treatment with topoisomerase-1 inhibitor containing antibody-drug conjugate (ADC).
* Treatment with an anticancer agent within 28 days prior to the first dose of trial treatment.

Note: Other protocol-defined Inclusion and Exclusion criteria may apply.

Where it's running

  • USC Norris Comprehensive Cancer Center
    Los Angeles, California, United States
    Recruiting
  • UCLA Hematology/Oncology, Santa Monica
    Santa Monica, California, United States
    Recruiting
  • University of Colorado Hospitak Anschutz
    Aurora, Colorado, United States
    Recruiting
  • Moffitt Cancer Center
    Tampa, Florida, United States
    Recruiting
  • START Midwest
    Grand Rapids, Michigan, United States
    Recruiting
  • Greco-Hainsworth Center for Research
    Nashville, Tennessee, United States
    Recruiting
Show 22 more locations
  • START San Antonio
    San Antonio, Texas, United States
    Recruiting
  • GenesisCare St Leonards
    Saint Leonards, New South Wales, Australia
    Recruiting
  • St John of God Subiaco Hospital
    Subiaco, Western Australia, Australia
    Recruiting
  • Cancer Research SA Pty Ltd
    Adelaide, Australia
    Recruiting
  • Cliniques Universitaires Saint-Luc | Cliniques Universitaires Saint-Luc|Head and Neck tumors, Route 407 | Cliniques Universitaires Saint-Luc|Hematology
    Brussels, Belgium
    Recruiting
  • Centre Hospitalier de l'Ardenne|Service Oncologie
    Libramont, Belgium
    Recruiting
  • CHU Brest Cavale Blanche
    Brest, Brittany (Bretagne), France
    Recruiting
  • Institut Régional du Cancer de Montpellier
    Montpellier, Herault, France
    Recruiting
  • Hôpital Européen Georges Pompidou
    Paris, Paris, France
    Recruiting
  • Centre Leon Berard
    Lyon, Rhone, France
    Recruiting
  • Hôpital Saint-Antoine Onco Med
    Paris, France
    Recruiting
  • Asklepios Klinik Altona
    Hamburg, Free and Hanseatic City of Hamburg, Germany
    Recruiting
  • National Cancer Center Hospital East
    Kashiwa, Chiba, Japan
    Recruiting
  • Kanagawa Cancer Center
    Yokohama, Kanagawa, Japan
    Recruiting
  • The University of Osaka Hospital
    Suita, Osaka, Japan
    Recruiting
  • Cancer Institute Hospital of JFCR
    Kōtoku, Tokyo-To, Japan
    Recruiting
  • Amsterdam UMC, Locatie VUMC|Hematology
    Amsterdam, Netherlands
    Recruiting
  • Samsung Medical Center
    Seoul, South Korea
    Recruiting
  • Hospital Universitario 12 de Octubre
    Madrid, Madrid, Spain
    Recruiting
  • Taipei Veterans General Hospital
    Taipei, Taiwan
    Recruiting
  • University College London Hospitals
    London, Greater London, United Kingdom
    Recruiting
  • Hammersmith Hospital
    London, Greater London, United Kingdom
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.