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Study of LY3537982 in Cancer Patients With a Specific Genetic Mutation (KRAS G12C)

A Phase 1/2 Study of LY3537982 in Patients With KRAS G12C-Mutant Advanced Solid Tumors

Status
Active, not recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04956640
Enrollment
540
Registered
2021-07-09
Start date
2021-07-19
Completion date
2027-04-01
Last updated
2026-05-29

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

Conditions

Biliary Tract Neoplasms, Carcinoma, Non-Small-Cell Lung, Colorectal Neoplasms, Endometrial Neoplasms, Ovarian Neoplasms, Pancreatic Neoplasms

Keywords

Frontline, 1L, First Line

Brief summary

The purpose of this study is to find out whether the study drug, LY3537982, is safe and effective in cancer patients who have a specific genetic mutation (KRAS G12C). Patients must have already received or were not able to tolerate the standard of care, except for specific groups who have not had cancer treatment. The study will last up to approximately 4 years.

Detailed description

This is an open-label, multicenter Phase 1/2 study to evaluate safety, tolerability, and preliminary efficacy of oral LY3537982 in patients with KRAS G12C-mutant solid tumors. This study will be conducted in 4 parts: Phase 1a dose escalation, Phase 1b dose expansion, Phase 1b dose optimization, and Phase 2. KRAS G12C mutations will be identified through standard of care testing.

Interventions

Oral

DRUGPembrolizumab

Intravenous

DRUGCetuximab

Intravenous

DRUGPemetrexed

Intravenous

DRUGCisplatin

Intravenous

DRUGCarboplatin

Intravenous

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY
Merck Sharp & Dohme LLC
CollaboratorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Patients have measurable disease per Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1). * Patients must have disease with evidence of KRAS G12C mutation in tumor tissue or circulating tumor deoxyribonucleic acid (DNA). * Participants must have a histological or a cytologically proven diagnosis of locally advanced, unresectable, and/or metastatic cancer and meet cohort-specific criteria. * Have an Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1. * Have adequate organ function. * Have discontinued all previous treatments for cancer with resolution of any significant ongoing adverse events (AEs), (except in certain scenarios). * Must be able to swallow capsule/tablet. * Agree and adhere to contraceptive use, if applicable. * For some parts of the study, (i.e., one of the two arms with LY3537982 in combination with pembrolizumab and the arm of LY3537982 in combination with pembrolizumab, pemetrexed, and platinum therapy) histologically or cytologically confirmed Stage IIIB-IIIC or Stage IV NSCLC that is previously untreated in the advanced/metastatic setting and not suitable for curative intent radical surgery or radiation therapy. Previously untreated patients who received adjuvant and neoadjuvant therapy are eligible if the last dose of the systemic treatment was completed at least 6 months prior to enrollment. For untreated patients in the arm with LY3537982 in combination with pembrolizumab noted above, a single cycle of pembrolizumab may be initiated within 21 days prior to enrollment. For untreated patients in the arm of LY3537982 in combination with pembrolizumab, pemetrexed, and platinum therapy, a single cycle of any or all of the drugs other than LY3537982 may be initiated within 21 days prior to enrollment. Start of study treatment may be delayed to allow sufficient time for recovery from treatment-related toxicity. * For one part of the study, participants must have received at least one prior oxaliplatin- or irinotecan-containing regimen for advanced or metastatic CRC.

Exclusion criteria

* Disease suitable for local therapy administered with curative intent. * Have an active, ongoing, or untreated infection. * Have a serious pre-existing medical condition(s) that, in the judgment of the investigator, would preclude participation in this study. * Have a serious cardiac condition. * Have a second active primary malignancy or have been diagnosed and/or treated for an additional malignancy within 3 years prior to enrollment. * For some parts of the study only: have untreated active central nervous system (CNS) metastases and/or leptomeningeal disease. Patients with treated CNS metastases are eligible for this study if their disease is asymptomatic, radiographically stable for at least 30 days, and they do not require treatment with steroids in the two-week period prior to study treatment. Patients with active CNS metastases are eligible for one part of the study. * Have received prior treatment with any KRAS G12C small molecule inhibitor, except in certain scenarios where such prior therapy is allowed as per protocol. * The following patients will be excluded from some parts of the study: * Experienced certain serious side effects with prior immunotherapy. * Have an active autoimmune disease that has required systemic anti-autoimmune treatment in the past 2 years. * Have received a live vaccine within 30 days prior to the first dose of study drug. * Pregnant, breastfeeding, or expecting to conceive or father children within the projected duration of the trial through 35 days after the last dose of study medication. * Known allergic reaction against any of the components of the study treatments.

Design outcomes

Primary

MeasureTime frameDescription
Phase 1a: To determine the recommended phase 2 dose (RP2D) of LY3537982 monotherapyCycle 1 (21 Days)Measured by the number of patients with dose-limiting toxicities (DLTs)
Phase 1b: To assess the safety and tolerability of LY3537982 when administered alone or in combination with other investigational agentsCycle 1 (21 Days)Measured by the number of patients with dose-limiting toxicities (DLTs)
Phase 1b: To determine the optimal dose of LY3537982 to be administered to treatment-naïve participants with advanced NSCLC in combination with pembrolizumabEstimated up to 2 yearsMeasured by TEAEs
To determine the optimal dose of LY3537982 to be administered to participants who have received at least one prior oxaliplatin- or irinotecan-containing regimen for advanced or metastatic CRC in combination with cetuximabEstimated up to 2 years
To assess the antitumor activity of LY3537982 monotherapy in participants with advanced pancreatic cancer with KRAS G12C mutationEstimated up to 2 years

Secondary

MeasureTime frameDescription
To assess preliminary antitumor activity of LY3537982 when administered alone or in combination with other investigational agents: Objective response rate (ORR)Estimated up to 2 yearsORR
To assess the preliminary antitumor activity of LY3537982 when administered alone or in combination with other investigational agents: Duration of Response (DOR)Estimated up to 2 yearsDOR
To assess the preliminary antitumor activity of LY3537982 when administered alone or in combination with other investigational agents: Best Overall Response (BOR)Estimated up to 2 yearsBOR
To assess the preliminary antitumor activity of LY3537982 when administered alone or in combination with other investigational agents: Time to response (TTR)Estimated up to 2 yearsTTR
To assess the preliminary antitumor activity of LY3537982 when administered alone or in combination with other investigational agents: Disease control rate (DCR)Estimated up to 2 yearsDCR
To assess the preliminary antitumor activity of LY3537982 when administered alone or in combination with other investigational agents: Progression-free survival (PFS)Estimated up to 2 yearsPFS
To assess the preliminary antitumor activity of LY3537982 when administered alone or in combination with other investigational agents: Overall survival (OS)Estimated up to 2 yearsOS
To assess the preliminary antitumor activity of LY3537982 when administered alone or in combination with other investigational agents: Intracranial DOR based on modified RECIST v1.1 (Certain arms of the study only)Estimated up to 2 yearsIntracranial DOR
To assess the preliminary antitumor activity of LY3537982 when administered alone or in combination with other investigational agents: Whole-body ORR based on RECIST v1.1 and modified RECIST v1.1 (Certain arms of the study only)Estimated up to 2 yearsWhole-body ORR
To characterize the pharmacokinetics (PK) properties of LY3537982: Area under the plasma concentration versus time curve (AUC)Predose estimated up to 2 yearsPK: AUC of LY3537982
To characterize the PK properties of LY3537982: Maximum drug concentration (Cmax)Predose estimated up to 2 yearsPK: Cmax of LY3537982

Countries

Australia, Canada, France, Japan, South Korea, United States

Contacts

STUDY_DIRECTORCall 1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559 Mon - Fri 8 AM - 8 PM Eastern time (UTC/GMT - 5 hours, EST)

Eli Lilly and Company

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 30, 2026