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A Study of LY4050784 in Participants With Advanced or Metastatic Solid Tumors

Phase 1
Recruiting
Conditions
Metastatic Solid Tumor
SMARCA4-Deficient Tumor
Advanced Solid Tumor
Non-small Cell Lung Cancer
Interventions
Registration Number
NCT06561685
Lead Sponsor
Eli Lilly and Company
Brief Summary

The main purpose of this study is to find out whether the study drug, LY4050784, is safe, tolerable and effective in participants with locally advanced or metastatic solid tumors with a BRG1 (Brahma-related gene 1, also known as SMARCA4) alteration who have previously received, do not qualify for, or are refusing standard of care treatments, or there is no standard therapy available for the disease. The study is conducted in two parts - phase Ia (dose-escalation) and phase Ib (dose-optimization, dose-expansion). The study will last up to approximately 4 years.

Detailed Description

Not available

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
160
Inclusion Criteria
  • Have one of the following locally advanced or metastatic solid tumor malignancy with BRG1/SMARCA4 alteration:

    • Phase 1a dose escalation: Presence of any alteration in SMARCA4/BRG1
    • Phase 1b expansion: Part A: Non-small Cell Lung Cancer (NSCLC) that is locally advanced and not suitable for definitive locoregional therapy, or metastatic with presence of a known or likely loss of function alteration in SMARCA4/BRG1 or loss of protein expression.
    • Phase 1b expansion: Part B: Any tumor type (other than NSCLC) that has the presence of a known or likely loss of function alteration in SMARCA4/BRG1 or loss of protein expression.
  • Prior Systemic Therapy Criteria:

    • Phase 1a dose escalation and Phase 1b (Part B): Participants who received all standard therapies for which the individual was deemed to be an appropriate candidate by the treating Investigator; or the individual is refusing the remaining most appropriate standard of care treatment; or there is no standard therapy available for the disease.
    • Phase 1b expansion (Part A): Participants must have received at least one line of therapy for advanced or metastatic disease.
  • Measurability of disease

    • Phase 1a dose escalation (excluding backfill): measurable or non-measurable disease as defined by Response Evaluation Criteria in Solid Tumors v1.1 (RECIST v1.1)
    • Phase 1a backfill and Phase 1b expansion: Measurable disease required as defined by RECIST v1.1
  • Have an Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1

Exclusion Criteria
  • Participants with known loss of function alteration of SMARCA2/BRM or malignancy with known association with SMARCA2/BRM alterations
  • Prior exposure to SMARCA2/BRM inhibitor(s) and/or degrader(s) (prior exposure may be permitted for dose escalation)
  • Participants with known or suspected history of untreated or uncontrolled central nervous system (CNS) involvement
  • Participants with history of increased risk of prolonged QT or significant arrythmia
  • Significant cardiovascular disease
  • Participants with active or recently treated (within 2 years) second primary malignancy and/or treated for an additional malignancy within 2 years prior to enrolment
  • Participants who are pregnant, breastfeeding or plan to breastfeed or expecting to conceive or father children during study or within 6 months after the last dose of study intervention

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
LY4050784 (Phase 1b - Dose Expansion/Part B)LY4050784LY4050784 administered orally.
LY4050784 (Phase 1b - Dose Optimization/Part A)LY4050784Comparing 2 or more doses (evaluated during dose escalation) of LY4050784 administered orally.
LY4050784 (Phase 1a - Dose Escalation)LY4050784Escalating doses of LY4050784 administered orally.
Primary Outcome Measures
NameTimeMethod
Phase 1a: To determine the maximum tolerated dose (MTD)/recommended phase 2 dose (RP2D) of LY4050784Up to Approximately 48 Months or 4 Years

Number of participants with dose-limiting toxicities (DLTs)

Phase 1b (Dose optimization only): To confirm the RP2D/optimal dose based on safety and efficacy of LY4050784Up to Approximately 48 Months or 4 Years

A summary of TEAEs, SAEs, and AEs regardless of causality, will be reported in the Reported Adverse Events module, ORR and Duration of Response (DOR) per Investigator

Phase Ia: Number of Participants with One or More Treatment Emergent Adverse Events (TEAEs), Serious Adverse Event(s) (SAEs), and Adverse Event(s) (AEs)Up to Approximately 48 Months or 4 Years

A summary of TEAEs, SAEs, and AEs regardless of causality, will be reported in the Reported Adverse Events module

Phase 1b: To assess the antitumor activity of LY4050784 Monotherapy: Overall response rate (ORR)Up to Approximately 48 Months or 4 Years

ORR per investigator assessed Response Evaluation Criteria in Solid Tumors, version 1.1 (RECIST 1.1)

Secondary Outcome Measures
NameTimeMethod
To characterize the PK properties of LY4050784: Time to Maximum Concentration (Tmax)Cycle 1 (Day 8)

PK: Tmax of LY4050784

To characterize the pharmacokinetics (PK) properties of LY4050784: Maximum Concentration (Cmax)Cycle 1 (Day 8)

PK: Cmax of LY4050784

To evaluate the preliminary antitumor activity of LY4050784: Duration of response (DOR)Up to Approximately 48 Months or 4 Years

DOR per investigator assessed RECIST 1.1

To evaluate the preliminary antitumor activity of LY4050784: Time to response (TTR)Up to Approximately 48 Months or 4 Years

TTR per investigator assessed RECIST 1.1

To characterize the PK properties of LY4050784: Area under the concentration versus time curve (AUC)Cycle 1 (Day 8)

PK: AUC of LY4050784

To evaluate the preliminary antitumor activity of LY4050784: Progression free survival (PFS)Up to Approximately 48 Months or 4 Years

PFS per investigator assessed RECIST 1.1

Phase Ia: To evaluate the preliminary antitumor activity of LY4050784: Overall response rate (ORR)Up to Approximately 48 Months or 4 Years

ORR per investigator assessed Response Evaluation Criteria in Solid Tumors, version 1.1 (RECIST 1.1)

To evaluate the preliminary antitumor activity of LY4050784: Disease control rate (DCR)Up to Approximately 48 Months or 4 Years

DCR per investigator assessed RECIST 1.1

Trial Locations

Locations (22)

National Cancer Center Hospital East

🇯🇵

Kashiwa, Chiba, Japan

Shizuoka Cancer Center

🇯🇵

Nagaizumi-cho,Sunto-gun, Shizuoka, Japan

Vanderbilt-Ingram Cancer Center

🇺🇸

Nashville, Tennessee, United States

UCLA

🇺🇸

Santa Monica, California, United States

University of Colorado Health Hospital

🇺🇸

Aurora, Colorado, United States

Sarah Cannon Research Institute at HealthOne

🇺🇸

Denver, Colorado, United States

Florida Cancer Specialists ORLANDO/DDU

🇺🇸

Lake Mary, Florida, United States

University of Miami

🇺🇸

Miami, Florida, United States

The University of Illinois at Chicago

🇺🇸

Chicago, Illinois, United States

Massachusetts General Hospital

🇺🇸

Boston, Massachusetts, United States

Dana-Farber Cancer Institute

🇺🇸

Boston, Massachusetts, United States

Columbia University Medical Center

🇺🇸

New York, New York, United States

Memorial Sloan Kettering Cancer Center

🇺🇸

New York, New York, United States

Ohio State University Hospital

🇺🇸

Columbus, Ohio, United States

UPMC Hillman Cancer Center

🇺🇸

Pittsburgh, Pennsylvania, United States

SCRI Oncology Partners

🇺🇸

Nashville, Tennessee, United States

MD Anderson Cancer Center

🇺🇸

Houston, Texas, United States

USO-Virginia Cancer Specialists, PC

🇺🇸

Fairfax, Virginia, United States

Medical College of Wisconsin

🇺🇸

Milwaukee, Wisconsin, United States

Aichi Cancer Center Hospital

🇯🇵

Nagoya, Aichi, Japan

National Cancer Center Hospital

🇯🇵

Chuo-ku, Tokyo, Japan

The Cancer Institute Hospital of JFCR

🇯🇵

Koto City, Tokyo, Japan

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