A Study Of The Pan-KRAS Inhibitor LY4066434 In Participants With KRAS Mutant Solid Tumors

Overview

About this study

The main purpose of the study is to assess whether the study drug, LY4066434, is safe and tolerable when administered to participants with locally advanced or metastatic solid tumors with certain KRAS mutations. LY4066434 will be given alone or in combination with other treatments. The study will have 2 parts: monotherapy dose escalation and dose optimization. The study is expected to last up to approximately 5 years.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria:

* Have evidence of KRAS G12C, G12D, G12V, G12A, G12S, or G13D mutation in tumor tissue or circulating tumor DNA
* Histological or cytologically proven diagnosis of a locally advanced, unresectable, and/or metastatic solid tumor cancer
* Have measurable disease per RECIST 1.1
* Have an ECOG performance status of ≤1
* Must not be pregnant and/or planning to breastfeed during the trial or within 180 days of the last dose of trial intervention
* Must be able to swallow tablets
* Participants with asymptomatic or treated CNS disease may be eligible

Exclusion Criteria:


* Have known active CNS metastases and/or carcinomatous meningitis
* Have any unresolved toxicities from prior therapy greater than NCI CTCAE Version 5.0 Grade 1 at the time of starting trial treatment, except for alopecia, peripheral neuropathy and ongoing endocrinopathies controlled on appropriate replacement therapy
* Have significant cardiovascular disease defined as unstable angina or acute coronary syndrome, history of myocardial infarction, known left ventricular ejection fraction or heart failure, uncontrolled or symptomatic arrhythmias.
* Have known active hepatitis B virus (HBV), hepatitis C virus (HCV) and untreated HIV infection
* Have other active malignancy unless in remission with life expectancy greater than 2 years.
* Have active uncontrolled systemic bacterial, viral, fungal, or parasitic infection
* Have history of non-infectious pneumonitis/interstitial lung disease that received steroids or has current clinically significant pneumonitis/interstitial lung disease

Note: Other protocol defined Inclusion/Exclusion Criteria may apply.

 

Eligibility last updated 05/01/2025. Questions regarding updates should be directed to the study team contact.

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status Contact

Scottsdale/Phoenix, Ariz.

Mayo Clinic principal investigator

Tanios Bekaii-Saab, M.D.

Contact us for the latest status

Contact information:

Cancer Center Clinical Trials Referral Office

(855) 776-0015

More information

Publications

Publications are currently not available
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CLS-20582562

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