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A Study of LY3381916 Alone or in Combination With LY3300054 in Participants With Solid Tumors

A Phase 1a/1b Study of an Anti-IDO-1 Agent (LY3381916) Administered Alone or in Combination With Anti- PD-L1 Checkpoint Antibody (LY3300054) in Solid Tumors

Status
Terminated
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03343613
Enrollment
60
Registered
2017-11-17
Start date
2017-11-17
Completion date
2020-05-04
Last updated
2020-06-09

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

Conditions

Solid Tumor, Non Small Cell Lung Cancer, Renal Cell Carcinoma, Triple Negative Breast Cancer

Keywords

IDO-1 Inhibitor, IDO1 Inhibitor, IDO Inhibitor

Brief summary

The purpose of this study is to evaluate the safety of the study drug LY3381916 administered alone or in combination with anti-programmed cell death ligand 1 (PD-L1) checkpoint antibody (LY3300054).

Interventions

DRUGLY3381916

IDO-1 inhibitor administered orally

PD-L1 inhibitor administered IV

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Dose escalation phase: Participant must have histological or cytological evidence of a diagnosis of cancer that is advanced and/or metastatic. * Dose expansion B1: Metastatic TNBC participants who have not received prior PD-1/L1 treatment. * Dose expansion B2: Metastatic NSCLC participants who have progressed on prior PD-L1/L1 treatment. * Dose expansion B3: Metastatic clear cell carcinoma RCC who have progressed on prior PD-L1/L1 treatment. * Have adequate organ function. * Have a performance status (PS) of ≤1 on the Eastern Cooperative Oncology Group (ECOG) scale. * Are able and willing to provide required, newly acquired tumor biopsies. * Have discontinued previous treatments for cancer. * Are able to swallow capsules.

Exclusion criteria

* Currently enrolled in a clinical study. * Have known symptomatic central nervous system metastases or carcinomatous meningitis. * Have a serious concomitant systemic disorder. * Have a symptomatic human immunodeficiency virus infection or symptomatic activated/reactivated hepatitis B or C. * Have a significant cardiac condition. * Have previously received an indoleamine- 2,3-dioxygenase (IDO) inhibitor. * Have an active autoimmune disease or currently require immunosuppression of \>10 milligrams of prednisone or equivalent per day. * Have interstitial lung disease or (noninfectious) pneumonitis, participants with a history of (noninfectious) pneumonitis that required steroids to assist with management.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants with Dose Limiting Toxicities (DLTs)Baseline through Cycle 1 (28 Day Cycle)Number of participants with DLTs

Secondary

MeasureTime frameDescription
PK: Area Under the Plasma Concentration Curve (AUC) of LY3381916Predose Lead in Day 1 through Cycle 3 Day 1PK: AUC of LY3381916
PK: Cmax of LY3381916 Administered in Combination with LY3300054Predose Cycle 1 Day 1 through Cycle 3 Day 1PK: Cmax of LY3381916 administered in combination with LY3300054
PK: AUC of LY3381916 Administered in Combination with LY3300054Predose Cycle 1 Day 1 through Cycle 3 Day 1PK: AUC of LY3381916 administered in combination with LY3300054
PK: Cmax of LY3300054 Administered in Combination with LY3381916Predose Cycle 1 Day 1 through Cycle 3 Day 1PK: Cmax of LY3300054 administered in combination with LY3381916
PK: Minimum Plasma Concentration (Cmin) of LY3300054 Administered in Combination with LY3381916Predose Cycle 1 Day 1 through Cycle 3 Day 1PK: Cmin of LY3300054 administered in combination with LY3381916
Pharmacokinetics (PK): Maximum Plasma Concentration (Cmax) of LY3381916Predose Lead in Day 1 through Cycle 3 Day 1PK: Cmax of LY3381916
Time to Response (TTR)Baseline to Date of CR or PR (Estimated up to 12 Months)TTR
Disease Control Rate (DCR): Percentage of Participants who Exhibit Stable Disease (SD), CR or PRBaseline through Measured Progressive Disease (Estimated up to 12 Months)DCR: Percentage of participants who exhibit SD, CR or PR
Duration of Response (DOR)Date of CR or PR to Date of Objective Progression or Death Due to Any Cause (Estimated up to 12 Months)DOR
Progression Free Survival (PFS)Baseline to Objective Progression or Death Due to Any Cause (Estimated Up to 12 Months)PFS
Objective Response Rate (ORR): Percentage of Participants with a Complete Response (CR) or Partial Response (PR)Baseline through Measured Progressive Disease (Estimated up to 12 Months)ORR: Percentage of participants with a CR or PR

Countries

Belgium, Denmark, France, Italy, Spain, United States

Outcome results

None listed

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