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A Study Evaluating FMC-376 in Participants With KRAS G12C Mutated Solid Tumors

An Open-Label, Phase 1/2 Dose Escalation, Dose Expansion and Cohort Expansion Study Evaluating the Safety, PK and Clinical Activity of FMC-376 in Participants With KRAS G12C Mutated Locally Advanced Unresectable or Metastatic Solid Tumors

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06244771
Acronym
PROSPER
Enrollment
403
Registered
2024-02-06
Start date
2024-02-12
Completion date
2028-04-01
Last updated
2026-03-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Advanced Solid Tumors With KRAS G12C Mutations, Colorectal Cancer, KRAS G12C, Metastatic Solid Tumor, Non Small Cell Lung Cancer, Pancreatic Cancer, Solid Tumor, Adult, Unresectable Solid Tumor

Keywords

Lung Cancer, KRAS, G12C

Brief summary

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.

Interventions

DRUGFMC-376

Oral Capsule Daily

Sponsors

Frontier Medicines Corporation
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Phase 1A: sequential; Phase 1B and Phase 2: parallel

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

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

Design outcomes

Primary

MeasureTime frameDescription
Dose Limiting ToxicitiesUp to 21 DaysNumber of participants with Dose Limiting Toxicities (DLTs)
Adverse Events (AEs)Approximately 24 MonthsNumber of participants with treatment-emergent adverse events (TEAEs)

Secondary

MeasureTime frameDescription
Maximum Observed Plasma Concentration (Cmax) of FMC-376Approximately 24 MonthsCmax
Time to Reach Maximum Blood Concentration (Tmax) of FMC-376Approximately 24 MonthsTmax
Minimum Observed Plasma Concentration (Cmin) of FMC-376Approximately 24 MonthsCmin
Elimination Half-life (t1/2) of FMC-376Approximately 24 Monthst1/2
Area Under Blood Concentration-Time Curve (AUC) of FMC-376Approximately 24 MonthsAUC
Volume of Distribution (Vd) of FMC-376Approximately 24 MonthsVd
Clearance (CL) of FMC-376 from Blood PlasmaApproximately 24 MonthsCL
Overall Response Rate (ORR)Approximately 24 MonthsAssess per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1
Duration of Response (DOR)Approximately 24 MonthsAssess per RECIST v1.1
Disease Control Rate (DCR)Approximately 24 MonthsAssess per RECIST v1.1
Progression-Free Survival (PFS)Approximately 24 MonthsAssess per RECIST v1.1
Overall Survival (OS)Approximately 24 Months

Countries

Australia, South Korea, United States

Contacts

CONTACTMedical Lead
clinicaltrials@frontiermeds.com+1 (650) 457-1005
STUDY_DIRECTORMedical Lead

Frontier Medicines Corporation

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 19, 2026