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A Study to Investigate LYL845 in Adults With Solid Tumors

A Phase 1 Study to Assess the Safety and Efficacy of LYL845 in Adults With Relapsed and/or Refractory Metastatic or Locally Advanced Melanoma and Selected Solid Tumor Malignancies

Status
Terminated
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05573035
Enrollment
39
Registered
2022-10-10
Start date
2022-12-19
Completion date
2025-01-09
Last updated
2025-07-01

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

Conditions

Colorectal Cancer, Melanoma, Non-small Cell Lung Cancer

Keywords

TIL, tumor infiltrating lymphocyte, melanoma, non-small cell lung cancer, colorectal cancer, NSCLC, CRC, relapsed, refractory, locally advanced, advanced, metastatic, epigenetic

Brief summary

This is an open-label, multi-center, dose-escalation study with expansion cohorts, designed to evaluate the safety and anti-tumor activity of LYL845, an epigenetically reprogrammed tumor infiltrating lymphocyte (TIL) therapy, in participants with relapsed or refractory (R/R) metastatic or locally advanced melanoma, non-small cell lung cancer (NSCLC), and colorectal cancer (CRC).

Detailed description

This is an open-label, multi-center, dose-escalation study with expansion cohorts, designed to evaluate the safety and anti-tumor activity of LYL845, an epigenetically reprogrammed tumor infiltrating lymphocyte (TIL) therapy, in participants with relapsed or refractory (R/R) metastatic or locally advanced melanoma, non-small cell lung cancer (NSCLC), and colorectal cancer (CRC). During the dose-escalation phase of the study (Part A), participants with melanoma will be enrolled. Once a safe recommended Phase 2 dose range (RP2DR) has been established in Part A, enrollment will be expanded (Part B) to include additional participants with melanoma, NSCLC and CRC.

Interventions

BIOLOGICALLYL845

LYL845 is an autologous tumor infiltrating lymphocyte (TIL) enhanced via Epi-R, a proprietary epigenetic reprogramming technology

Sponsors

Lyell Immunopharma, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Single-arm, open-label, dose-escalation and -expansion study

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Age ≥ 18 years up to ≤ 75 years at the time of informed consent * Confirmed diagnosis of melanoma, non-small cell lung cancer (NSCLC), or colorectal cancer (CRC) that is metastatic or locally advanced or unresectable and is relapsed and/or refractory (R/R) after standard therapy for each tumor histology * Participants must have received prior systemic treatment for their metastatic disease or locally advanced disease based on tumor type as follows: * Melanoma: participants with disease progression following an immune checkpoint inhibitor (CPI) * NSCLC: participants with disease progression following at least 1 approved systemic therapy, including an immune CPI-containing regimen for appropriate patients or an approved targeted therapy for known molecular abnormalities if applicable to their disease * CRC: participants with disease progression following at least 1 line of therapy, including a fluoropyrimidine with oxaliplatin or irinotecan. Microsatellite instability (MSI) high/mismatch repair deficient (dMMR) CRC participants must have disease progression following systemic therapy with immune CPIs. * Measurable disease including at least 1 lesion that is safely resectable AND a target lesion to measure response and an additional lesion for biopsy * Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 * Adequate organ and marrow function * Women of childbearing potential must have a negative pregnancy test at screening * All participants must agree to practice highly effective methods of contraception * Fully recovered from toxicity from prior systemic anticancer therapy

Exclusion criteria

* Prior treatment with adoptive cellular therapy * Prior solid organ transplantation * Central nervous system (CNS) involvement of disease that is extensive, symptomatic or untreated, or patients with leptomeningeal disease * Uncontrolled or symptomatic pleural effusion or ascites * Untreated or active systemic infection * Active autoimmune disease requiring treatment or primary immunodeficiency syndrome * Systemic corticosteroids at a dose of \>10 mg of prednisone or equivalent per day * Other primary malignancy within 3 years prior to enrollment * Impaired cardiac function or clinically significant cardiovascular disease * Required chronic anticoagulation, such as warfarin, low molecular weight heparin, or Factor Xa inhibitors * Pregnant or nursing (lactating) women

Design outcomes

Primary

MeasureTime frameDescription
Determine recommended Phase 2 Dose Range (RP2DR)Up to 2 yearsDetermine the recommended Phase 2 dose range (during dose-escalation phase)
Incidence of dose-limiting toxicities (DLTs)Up to 28 daysEvaluate incidence of dose-limiting toxicities (DLTs)
Incidence of treatment-emergent adverse events (TEAEs)Up to 2 yearsEvaluate incidence of treatment-emergent adverse events (TEAEs)
Severity of treatment-emergent adverse events (TEAEs)Up to 2 yearsEvaluate severity of treatment-emergent adverse events (TEAEs)

Secondary

MeasureTime frameDescription
Overall response rate (ORR) by RECIST, version 1.1up to 2 yearsEvaluate anti-tumor activity of LYL845 based on overall response rate (ORR) by RECIST, version 1.1
Duration of response (DOR)up to 2 yearsEvaluate duration of response (DOR)
Progression-free survival (PFS)up to 2 yearsEvaluate progression-free survival (PFS)
Overall survival (OS)up to 2 yearsEvaluate overall survival (OS)

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 8, 2026