New pill targets multiple KRAS mutations in Hard-to-Treat cancers

NCT ID NCT06607185

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This early-stage trial is testing a new oral drug called LY4066434, which blocks several types of KRAS proteins that drive cancer growth. The study includes up to 750 people with advanced pancreatic, lung, colorectal, or other solid tumors that have specific KRAS mutations. The drug is given alone or combined with other cancer treatments to first check safety and find the best dose.

What this could mean

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

Active substance

LY4066434 (a Pan-KRAS inhibitor drug taken by mouth)

What this could lead to

If this drug is safe and shows promise, it could lead to a new treatment option for several cancers driven by KRAS mutations, such as pancreatic, lung, and colorectal cancer.

What could go wrong

This is an early Phase 1 trial focused on safety and dosing, so it is too soon to know if the drug will work. Side effects are unknown, and the drug may not shrink tumors or improve survival.

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.

cholangiocarcinoma colonic neoplasm colorectal cancer colorectal neoplasm endometrium neoplasm Esophageal Neoplasms lung neoplasm metastatic malignant neoplasm neoplasm Neoplasm Metastasis non-small cell lung carcinoma ovarian cancer pancreatic ductal adenocarcinoma pancreatic neoplasm rectal neoplasm

As listed by the trial registrant

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

Contacts and locations

Locations

  • Asklepios Kliniken Hamburg GmbH - Asklepios Klinik Altona

    Hamburg, 22763, Germany

  • Cancer Institute Hospital of JFCR

    Tokyo, 135-8550, Japan

  • Centre Leon Berard

    Lyon, 69373, France

  • Centro Ricerche Cliniche di Verona s.r.l.

    Verona, 37134, Italy

  • City of Hope

    Duarte, California, 91010, United States

  • Cleveland Clinic

    Cleveland, Ohio, 44195, United States

  • Cliniques universitaires Saint-Luc

    Brussels, 1200, Belgium

  • Columbia University

    New York, New York, 10032, United States

  • Dana-Farber Cancer Institute

    Boston, Massachusetts, 02215, United States

  • David H. Koch Center for Cancer Care at Memorial Sloan Kettering Cancer Center

    New York, New York, 10065, United States

  • Duke University Medical Center

    Durham, North Carolina, 27710, United States

  • Henry Ford Health System

    Detroit, Michigan, 48202, United States

  • Hospital General Universitario Gregorio Maranon

    Madrid, 28007, Spain

  • Hospital Regional Universitario de Malaga

    Málaga, 29010, Spain

  • Hospital Universitario 12 de Octubre

    Madrid, 28041, Spain

  • Hospital Universitario Ramon y Cajal

    Madrid, 28034, Spain

  • Hospital Universitario Vall d'Hebron

    Barcelona, 08035, Spain

  • Hospital del Mar

    Barcelona, 08003, Spain

  • Indiana University (IU)

    Indianapolis, Indiana, 46202, United States

  • Institut Catala d'Oncologia - L'Hospitalet

    Barcelona, 08908, Spain

  • Institut Gustave Roussy

    Villejuif, 94805, France

  • Krankenhaus Nordwest GmbH

    Frankfurt, 60488, Germany

  • Kyoto University Hospital

    Kyoto, 606-8507, Japan

  • MD Anderson Cancer Center

    Houston, Texas, 77030, United States

  • Massachusetts General Hospital

    Boston, Massachusetts, 02114, United States

  • Mayo Clinic

    Phoenix, Arizona, 85054, United States

  • National Cancer Center Hospital

    Tokyo, 104-0045, Japan

  • National Cancer Center Hospital East

    Chiba, 277-8577, Japan

  • National Taiwan University Hospital

    Taipei, 10016, Taiwan

  • National Taiwan University Hospital Hsin-Chu Branch

    Hsinchu, 300195, Taiwan

  • SCRI Oncology Partners

    Nashville, Tennessee, 37203, United States

  • SLK-Kliniken Heilbronn GmBH

    Heilbronn, 74078, Germany

  • Sarah Cannon Research Institute/SCRI

    Nashville, Tennessee, 37203, United States

  • Shizuoka Cancer Center

    Shizuoka, 411-8777, Japan

  • South Texas Accelerated Research Therapeutics (START)

    San Antonio, Texas, 78229, United States

  • South Texas Accelerated Research Therapeutics (START) Midwest

    Grand Rapids, Michigan, 49546, United States

  • Swedish Cancer Institute (SCI)

    Seattle, Washington, 98104, United States

  • The University of Chicago Medical Center (UCMC)

    Chicago, Illinois, 60637, United States

  • UZ Gent

    Ghent, 9000, Belgium

  • Universitaetsklinikum Wuerzburg

    Würzburg, 97080, Germany

  • Universite Libre de Bruxelles (ULB) - Institut Jules Bordet

    Brussels, 1070, Belgium

  • University of Alabama at Birmingham

    Birmingham, Alabama, 35233, United States

  • University of California, Los Angeles (UCLA)

    Santa Monica, California, 90404, United States

  • University of Pittsburgh Medical Center

    Pittsburgh, Pennsylvania, 15213, United States

  • University of Texas Southwestern

    Dallas, Texas, 75244, United States

  • Virginia Cancer Specialists

    Fairfax, Virginia, 22031, United States

  • Yale University School of Medicine - Yale Cancer Center

    New Haven, Connecticut, 06520-8028, United States