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A Study of LY3499446 in Participants With Advanced Solid Tumors With KRAS G12C Mutation

A Phase 1/2 Study of LY3499446 Administered to Patients With Advanced Solid Tumors With KRAS G12C Mutation

Status
Terminated
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04165031
Enrollment
5
Registered
2019-11-15
Start date
2019-11-28
Completion date
2020-10-30
Last updated
2021-11-24

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

Conditions

Advanced Solid Tumor, Colorectal Cancer, Non-Small Cell Lung Cancer

Brief summary

The reason for this study is to see if the study drug LY3499446 is safe and effective in participants with solid tumors with KRAS G12C mutation.

Interventions

DRUGLY3499446

Administered orally

DRUGAbemaciclib

Administered orally

DRUGCetuximab

Administered IV

DRUGErlotinib

Administered orally

DRUGDocetaxel

Administered IV

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Participants must have diagnosis of a solid tumor with KRAS G12C mutation that did not respond to at least 1 line of standard therapy and has spread to other part(s) of the body * For phase II, participants must be willing to have new tumor tissue biopsies (doctor removes a small amount of tissue) during the study if it does not cause undue risks to health * Participants must be willing to use highly effective birth control * Participants must have adequate organ function * Participants must be able to swallow capsules

Exclusion criteria

* Participants must not have certain infections such as hepatitis or tuberculosis or HIV that is not well controlled * Participants must not have another serious medical condition including a serious heart condition, such as congestive heart failure, unstable angina pectoris, or heart attack within the last three months * Participants must not have cancer of the central nervous system that is not stable * Participants must not be pregnant or breastfeeding * Participants must not use herbal supplements

Design outcomes

Primary

MeasureTime frameDescription
Phase 1: Number or Participants With Dose Limiting Toxicities (DLTs)Cycle 1 (21 Day Cycle)DLT is defined as an event that is clinically significant and not clearly related to disease progression or intercurrent illness that occurred within the DLT observation period of the Cycle 1 timeframe.
Phase 2: Overall Response Rate (ORR): Percentage of Participants Who Achieve Complete Response (CR) or Partial Response (PR) in Colorectal Cancer (CRC) Cohorts and Other Tumors CohortBaseline through Measured Progressive DiseaseORR is defined as percentage of participants who achieved a CR or PR out of all the participants treated. Tumor responses were measured and record using Response Evaluation Criteria in Solid Tumors v1.1 (RECIST) v1.1 guidelines. CR is defined as the disappearance of all targeted and non-target lesions and no appearance of new lesions. PR is defined as at least a 30% decrease in the sum of the longest diameter (LD) of target lesions (taking as reference the baseline sum LD), no progression of non-target lesions and no appearance of new lesions.
Phase 2: Progression-Free Survival (PFS) Non-Small Lung Cancer (NSCLC Cohorts)Baseline to Objective Progression or Death Due to Any CausePFS was defined as the time from study enrollment (for non-randomized cohorts)/ the time from randomization (for randomized cohorts) to the first observation of progressive disease (PD) or death without documented disease progression per RECIST V1.1 criteria.

Secondary

MeasureTime frameDescription
Phase 1: PK: Average Concentration at Steady State of LY3499446 in Combination With ErlotinibPredose Cycle 1 Day 1 through Cycle 3 Day 1 (21 Day Cycles)PK: Average Concentration at Steady State of LY3499446 in Combination with Erlotinib
Phase 1: ORR: Percentage of Participants Who Achieve CR or PRBaseline through Measured Progressive Disease (Up to 11 Months)ORR is defined as percentage of participants who achieved a CR or PR out of all the participants treated. Tumor responses were measured and record using Response Evaluation Criteria in Solid Tumors v1.1 (RECIST) v1.1 guidelines. CR is defined as the disappearance of all targeted and non-target lesions and no appearance of new lesions. PR is defined as at least a 30% decrease in the sum of the longest diameter (LD) of target lesions (taking as reference the baseline sum LD), no progression of non-target lesions and no appearance of new lesions.
Phase 1: Pharmacokinetics (PK): Average Concentration of LY3499446Cycle 1 Day 1: Predose, 0.5, 1, 1.5, 2, 3, 4, 8, 24 hours post-doseAverage concentration after the first dose of LY3499446.
Phase 1: Duration of Response (DoR)Date of CR or PR to Date of Disease Progression or Death Due to Any Cause (Up to 11 Months)DoR was defined as the time from the date measurement criteria for CR or PR (whichever is first recorded) are first met until the first date that disease is recurrent or objective progression is observed, per RECIST v1.1 criteria, or the date of death from any cause in the absence of objectively determined disease progression or recurrence.
Phase 1: Disease Control Rate (DCR): Percentage of Participants With a Best Overall Response of CR, PR, and SDBaseline through Measured Progressive Disease (Up to 11 Months)DCR was defined as the percentage of participants who achieved a best overall response (BOR) of confirmed CR, confirmed PR, or SD out of all participants treatment. Best response is determined from a sequence of responses assessed. Two determinations of PR or better before progression, but not qualifying for a CR, are required for a best response of PR. CR is defined as the disappearance of all targeted and non-target lesions and no appearance of new lesions. PR is defined as at least a 30% decrease in the sum of the longest diameter (LD) of target lesions (taking as reference the baseline sum LD), no progression of non-target lesions and no appearance of new lesions.
Phase 1: PFSBaseline to Objective Progression or Death Due to Any Cause (Up to 11 Months)PFS was defined as the time from study enrollment (for non-randomized cohorts)/ the time from randomization (for randomized cohorts) to the first observation of progressive disease (PD) overall response or death without documented disease progression per RECIST V1.1 criteria.
Phase 1: PK: Average Concentration at Steady State of LY3499446 in Combination With AbemaciclibPredose Cycle 1 Day 1 through Cycle 3 Day 1 (21 Day Cycles)PK: Average Concentration at Steady State of LY3499446 in Combination with Abemaciclib
Phase 1: PK: Average Concentration at Steady State of LY3499446 in Combination With CetuximabPredose Cycle 1 Day 1 through Cycle 3 Day 1 (21 Day Cycles)PK: Average Concentration at Steady State of LY3499446 in Combination with Cetuximab

Countries

Australia, United States

Participant flow

Pre-assignment details

A participant was identified as having completed the study if the participant was observed until event of progressive disease (PD) or death, or the participant had discontinued study treatment and is in follow up at the time of the final analysis. The study was terminated due to an unexpected toxicity finding.

Participants by arm

ArmCount
LY3499446 Phase 1 Cohort A1 (High Dose)
Participants received high dose LY3499446 as oral monotherapy BID in 21-day cycles.
2
LY3499446 Phase 1 Cohort AO (Mid Dose)
Participant received mid dose LY3499446 as oral monotherapy once QOD in 21-day cycles.
1
LY3499446 Phase 1 Cohort A-2 (Low Dose)
Participants received low dose LY 3499446 as oral monotherapy once QD in 21-day cycles.
2
LY3499446 + Combination Drug Phase 1
LY3499446 combined with either abemaciclib (orally), erlotinib (orally), or cetuximab (IV). The trial was terminated prior to initiation of this portion.
0
LY3499446 Monotherapy + Combination Drug Phase 2
LY3499446 monotherapy orally. LY3499446 combined with either abemaciclib (orally), erlotinib (orally), or cetuximab (IV). The trial was terminated prior to initiation of this portion.
0
Docetaxel Phase 2
Docetaxel IV infusion. The trial was terminated prior to initiation of this portion.
0
Total5

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005
Overall StudyAdverse Event110000
Overall StudyWithdrawal by Subject001000

Baseline characteristics

CharacteristicTotalLY3499446 Phase 1 Cohort AO (Mid Dose)LY3499446 Phase 1 Cohort A-2 (Low Dose)LY3499446 + Combination Drug Phase 1LY3499446 Phase 1 Cohort A1 (High Dose)LY3499446 Monotherapy + Combination Drug Phase 2Docetaxel Phase 2
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
4 Participants1 Participants2 Participants0 Participants1 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
1 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
5 Participants1 Participants2 Participants0 Participants2 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
5 Participants1 Participants2 Participants0 Participants2 Participants0 Participants0 Participants
Region of Enrollment
Australia
2 Participants0 Participants0 Participants0 Participants2 Participants0 Participants0 Participants
Region of Enrollment
United States
3 Participants1 Participants2 Participants0 Participants0 Participants0 Participants0 Participants
Sex: Female, Male
Female
4 Participants1 Participants2 Participants0 Participants1 Participants0 Participants0 Participants
Sex: Female, Male
Male
1 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
1 / 20 / 11 / 2
other
Total, other adverse events
2 / 21 / 12 / 2
serious
Total, serious adverse events
0 / 20 / 11 / 2

Outcome results

Primary

Phase 1: Number or Participants With Dose Limiting Toxicities (DLTs)

DLT is defined as an event that is clinically significant and not clearly related to disease progression or intercurrent illness that occurred within the DLT observation period of the Cycle 1 timeframe.

Time frame: Cycle 1 (21 Day Cycle)

Population: All participants who received at least one dose of study drug and had a dose limiting toxicity.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
LY3499446 Phase 1 Cohort A1 (High Dose)Phase 1: Number or Participants With Dose Limiting Toxicities (DLTs)2 Participants
LY3499446 Phase 1 Cohort AO (Mid Dose)Phase 1: Number or Participants With Dose Limiting Toxicities (DLTs)1 Participants
LY3499446 Phase 1 Cohort A-2 (Low Dose)Phase 1: Number or Participants With Dose Limiting Toxicities (DLTs)1 Participants
Primary

Phase 2: Overall Response Rate (ORR): Percentage of Participants Who Achieve Complete Response (CR) or Partial Response (PR) in Colorectal Cancer (CRC) Cohorts and Other Tumors Cohort

ORR is defined as percentage of participants who achieved a CR or PR out of all the participants treated. Tumor responses were measured and record using Response Evaluation Criteria in Solid Tumors v1.1 (RECIST) v1.1 guidelines. CR is defined as the disappearance of all targeted and non-target lesions and no appearance of new lesions. PR is defined as at least a 30% decrease in the sum of the longest diameter (LD) of target lesions (taking as reference the baseline sum LD), no progression of non-target lesions and no appearance of new lesions.

Time frame: Baseline through Measured Progressive Disease

Population: Zero participants were analyzed due to early termination of study.

Primary

Phase 2: Progression-Free Survival (PFS) Non-Small Lung Cancer (NSCLC Cohorts)

PFS was defined as the time from study enrollment (for non-randomized cohorts)/ the time from randomization (for randomized cohorts) to the first observation of progressive disease (PD) or death without documented disease progression per RECIST V1.1 criteria.

Time frame: Baseline to Objective Progression or Death Due to Any Cause

Population: Zero participants were analyzed due to early termination of study.

Secondary

Phase 1: Disease Control Rate (DCR): Percentage of Participants With a Best Overall Response of CR, PR, and SD

DCR was defined as the percentage of participants who achieved a best overall response (BOR) of confirmed CR, confirmed PR, or SD out of all participants treatment. Best response is determined from a sequence of responses assessed. Two determinations of PR or better before progression, but not qualifying for a CR, are required for a best response of PR. CR is defined as the disappearance of all targeted and non-target lesions and no appearance of new lesions. PR is defined as at least a 30% decrease in the sum of the longest diameter (LD) of target lesions (taking as reference the baseline sum LD), no progression of non-target lesions and no appearance of new lesions.

Time frame: Baseline through Measured Progressive Disease (Up to 11 Months)

Population: Zero participants were analyzed due to early termination of study.

Secondary

Phase 1: Duration of Response (DoR)

DoR was defined as the time from the date measurement criteria for CR or PR (whichever is first recorded) are first met until the first date that disease is recurrent or objective progression is observed, per RECIST v1.1 criteria, or the date of death from any cause in the absence of objectively determined disease progression or recurrence.

Time frame: Date of CR or PR to Date of Disease Progression or Death Due to Any Cause (Up to 11 Months)

Population: Zero participants were analyzed due to early termination of study.

Secondary

Phase 1: ORR: Percentage of Participants Who Achieve CR or PR

ORR is defined as percentage of participants who achieved a CR or PR out of all the participants treated. Tumor responses were measured and record using Response Evaluation Criteria in Solid Tumors v1.1 (RECIST) v1.1 guidelines. CR is defined as the disappearance of all targeted and non-target lesions and no appearance of new lesions. PR is defined as at least a 30% decrease in the sum of the longest diameter (LD) of target lesions (taking as reference the baseline sum LD), no progression of non-target lesions and no appearance of new lesions.

Time frame: Baseline through Measured Progressive Disease (Up to 11 Months)

Population: Zero participants were analyzed due to early termination of study.

Secondary

Phase 1: PFS

PFS was defined as the time from study enrollment (for non-randomized cohorts)/ the time from randomization (for randomized cohorts) to the first observation of progressive disease (PD) overall response or death without documented disease progression per RECIST V1.1 criteria.

Time frame: Baseline to Objective Progression or Death Due to Any Cause (Up to 11 Months)

Population: Zero participants were analyzed due to early termination of study.

Secondary

Phase 1: Pharmacokinetics (PK): Average Concentration of LY3499446

Average concentration after the first dose of LY3499446.

Time frame: Cycle 1 Day 1: Predose, 0.5, 1, 1.5, 2, 3, 4, 8, 24 hours post-dose

Population: All participants who have received at least one dose of study drug and had evaluable PK.

ArmMeasureValue (GEOMETRIC_MEAN)
LY3499446 Phase 1 Cohort A1 (High Dose)Phase 1: Pharmacokinetics (PK): Average Concentration of LY3499446NA nanograms per milliliter (ng/mL)
LY3499446 Phase 1 Cohort AO (Mid Dose)Phase 1: Pharmacokinetics (PK): Average Concentration of LY3499446NA nanograms per milliliter (ng/mL)
LY3499446 Phase 1 Cohort A-2 (Low Dose)Phase 1: Pharmacokinetics (PK): Average Concentration of LY3499446NA nanograms per milliliter (ng/mL)
Secondary

Phase 1: PK: Average Concentration at Steady State of LY3499446 in Combination With Abemaciclib

PK: Average Concentration at Steady State of LY3499446 in Combination with Abemaciclib

Time frame: Predose Cycle 1 Day 1 through Cycle 3 Day 1 (21 Day Cycles)

Population: Zero participants were analyzed due to early termination of study.

Secondary

Phase 1: PK: Average Concentration at Steady State of LY3499446 in Combination With Cetuximab

PK: Average Concentration at Steady State of LY3499446 in Combination with Cetuximab

Time frame: Predose Cycle 1 Day 1 through Cycle 3 Day 1 (21 Day Cycles)

Population: Zero participants were analyzed due to early termination of study.

Secondary

Phase 1: PK: Average Concentration at Steady State of LY3499446 in Combination With Erlotinib

PK: Average Concentration at Steady State of LY3499446 in Combination with Erlotinib

Time frame: Predose Cycle 1 Day 1 through Cycle 3 Day 1 (21 Day Cycles)

Population: Zero participants were analyzed due to early termination of study.

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026