Cancer combo trial halted early: what we know

NCT ID NCT05221320

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This phase 2 trial tested two drugs—ulixertinib and hydroxychloroquine—in 47 people with advanced gastrointestinal cancers that have certain genetic mutations (MAPK pathway). The goal was to see if the combination could shrink tumors. However, the study was terminated early, so the full results are not available.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

Ulixertinib and hydroxychloroquine

What this could lead to

If successful, this combination could offer a new treatment option for advanced gastrointestinal cancers with specific genetic mutations.

What could go wrong

The trial was terminated early, so we have limited data on effectiveness. It was also a small, early-phase study, so results may not apply broadly.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

colorectal adenocarcinoma digestive system cancer digestive system neoplasm esophageal adenocarcinoma esophageal squamous cell carcinoma extrahepatic bile duct carcinoma gastric adenocarcinoma gastroesophageal junction adenocarcinoma intrahepatic cholangiocarcinoma neoplasm pancreatic adenocarcinoma perihilar intrahepatic cholangiocarcinoma

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Cleveland Clinic

    Cleveland, Ohio, 44195, United States

  • Massey Cancer Center, Virginia Commonwealth University

    Richmond, Virginia, 23298, United States

  • Mount Sinai

    New York, New York, 10029, United States

  • Rogel Cancer Center, University of Michigan Health

    Ann Arbor, Michigan, 48109, United States

  • Rutgers Cancer Institute of New Jersey

    New Brunswick, New Jersey, 08903, United States

  • University of Arizona Cancer Center

    Tucson, Arizona, 85719, United States

  • University of California San Francisco

    San Francisco, California, 94143, United States

  • University of Kansas Cancer Center

    Fairway, Kansas, 66205, United States

  • Washington University School of Medicine

    St Louis, Missouri, 63110, United States