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

An Open-label, Multicenter Study of LY4050784, a Selective SMARCA2/BRM Inhibitor, in Advanced Solid Tumor Malignancies With SMARCA4/BRG1 Alterations

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06561685
Enrollment
340
Registered
2024-08-20
Start date
2024-09-19
Completion date
2027-10-01
Last updated
2026-09-08

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

Conditions

Advanced Solid Tumor, Metastatic Solid Tumor, Non-small Cell Lung Cancer, SMARCA4-Deficient Tumor

Keywords

SMARCA2, SMARCA4, Lung cancer, BRM, BRG1, Adenocarcinoma, Squamous cell carcinoma, Targeted therapy

Brief summary

The main purpose of this study is to find out whether the study drug, LY4050784, is safe, tolerable and effective in participants alone or in combination with other anticancer agents. In addition, 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.

Interventions

DRUGLY4050784

Oral

DRUGPembrolizumab

Administered IV.

DRUGCisplatin

Administered IV.

DRUGCarboplatin

Administered IV.

DRUGPemetrexed

Administered IV.

DRUGPaclitaxel

Administered IV.

DRUGNab paclitaxel

Administered IV.

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Have one of the following locally advanced or metastatic solid tumor malignancy with SMARCA4 (BRG1) 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. * Phase 1b expansion: Part C: 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. * 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. * Phase 1b expansion (Part C): Participants may be treatment naïve or have received 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 or likely 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 and/or treated for an additional primary 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 * Participants with history of active autoimmune diseases, history of allogenic stem cell/organ transplant or compromised immune system within past 2 years (Part C only)

Design outcomes

Primary

MeasureTime frameDescription
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 YearsA summary of TEAEs, SAEs, and AEs regardless of causality, will be reported in the Reported Adverse Events module
Phase 1a: To determine the maximum tolerated dose (MTD)/recommended phase 2 dose (RP2D) of LY4050784Up to Approximately 48 Months or 4 YearsNumber of participants with dose-limiting toxicities (DLTs)
Phase 1b: To assess the antitumor activity of LY4050784 Monotherapy: Overall response rate (ORR)Up to Approximately 48 Months or 4 YearsORR per investigator assessed Response Evaluation Criteria in Solid Tumors, version 1.1 (RECIST 1.1)
Phase 1b (Dose optimization only): To confirm the RP2D/optimal dose based on safety and efficacy of LY4050784Up to Approximately 48 Months or 4 YearsA 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 1b (Combination cohorts/Part C): To assess the safety and tolerability of LY4050784 when administered in combination with other anticancer agentsUp to Approximately 48 Months or 4 YearsA summary of TEAEs, SAEs, and AEs regardless of causality, will be reported in the Reported Adverse Events module

Secondary

MeasureTime frameDescription
To characterize the pharmacokinetics (PK) properties of LY4050784: Maximum Concentration (Cmax)Cycle 1 (Day 8)PK: Cmax of LY4050784
To characterize the PK properties of LY4050784: Time to Maximum Concentration (Tmax)Cycle 1 (Day 8)PK: Tmax of LY4050784
To characterize the PK properties of LY4050784: Area under the concentration versus time curve (AUC)Cycle 1 (Day 8)PK: AUC of LY4050784
Phase Ia: To evaluate the preliminary antitumor activity of LY4050784: Overall response rate (ORR)Up to Approximately 48 Months or 4 YearsORR per investigator assessed Response Evaluation Criteria in Solid Tumors, version 1.1 (RECIST 1.1)
To evaluate the preliminary antitumor activity of LY4050784: Duration of response (DOR)Up to Approximately 48 Months or 4 YearsDOR 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 YearsTTR per investigator assessed RECIST 1.1
To evaluate the preliminary antitumor activity of LY4050784: Disease control rate (DCR)Up to Approximately 48 Months or 4 YearsDCR per investigator assessed RECIST 1.1
To evaluate the preliminary antitumor activity of LY4050784: Progression free survival (PFS)Up to Approximately 48 Months or 4 YearsPFS per investigator assessed RECIST 1.1
To evaluate the PK properties of LY4050784 in combination cohorts: Maximum Concentration (Cmax) PK: Cmax of LY4050784Cycle 1 (Day 8)
To evaluate the PK properties of LY4050784 in combination cohorts: Time to Maximum Concentration (Tmax) PK: Tmax of LY4050784Cycle 1 (Day 8)
To evaluate the PK properties of LY4050784 in combination cohorts: Area under the concentration versus time curve (AUC)Cycle 1 (Day 8)

Countries

France, Germany, Japan, South Korea, Spain, United States

Contacts

CONTACTTrial questions or participation questions: 1-877-CTLILLY (1-877-285-4559) or
LillyTrials@Lilly.com1-317-615-4559
CONTACTPhysicians interested in becoming principal investigators please contact
clinical_inquiry_hub@lilly.com
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: Sep 9, 2026