NCT06244771 · Frontier Medicines Corporation
A Study Evaluating FMC-376 in Participants With KRAS G12C Mutated Solid Tumors
(PROSPER)
What this study is about
The goal of this clinical trial is to evaluate FMC-376 in participants with advanced solid tumors with KRAS G12C mutations. This clinical trial will be conducted in 3 parts: Phase 1A (gradually increasing doses), Phase 1B (Dose Expansion), and Phase 2 (group of participants Expansion). Multiple dose levels in participants with advanced solid tumors will be evaluated.
View original scientific description
The goal of this clinical trial is to evaluate FMC-376 in participants with advanced solid tumors with KRAS G12C mutations. This clinical trial will be conducted in 3 parts: Phase 1A (Dose Escalation), Phase 1B (Dose Expansion), and Phase 2 (Cohort Expansion). Multiple dose levels in participants with advanced solid tumors will be evaluated.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Histologically or cytologically confirmed locally advanced unresectable or metastatic solid tumors with KRAS G12C mutation
- Received and progressed or been intolerant to prior standard therapy OR standard therapy is considered inappropriate OR an investigational agent is considered standard of care
- Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1
- Adequate hematological, renal, and hepatic function
- Agrees not to participate in another interventional study while receiving study drug
Exclusion criteria
- Leptomeningeal disease or carcinomatous meningitis
- Clinically significant toxicity resulting from prior cancer therapies
- Known or suspected hypersensitivity to FMC-376 or any components of the study drug
- Condition that would interfere with study drug absorption
- Any illness or medical history that would impact safety or compliance with study requirements or impact ability to interpret study data
Where
- La Jolla, California
- Orange, California
- San Francisco, California
- Lake Mary, Florida
- Dyer, Indiana
- Fairway, Kansas
- Boston, Massachusetts
- Detroit, Michigan
- Philadelphia, Pennsylvania
- Houston, Texas
- Kingwood, Texas
- San Antonio, Texas
And 2 more locations — see the full list below.
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Mar 18, 2026 · Source of record for eligibility and locations