A Platform Study of Novel Immunotherapy Combinations in Participants With Previously Untreated, Advanced/Metastatic Non-Small-Cell Lung Cancer

GlaxoSmithKline (GSK)

Status and phase: Enrolling; Phase 2

Conditions: Lung Cancer, Non-Small Cell

Treatments: Drug: GSK6097608; Drug: Belrestotug; Drug: Dostarlimab; Drug: Pembrolizumab

Study type: Interventional

Funder types: Industry

Identifiers

NCT05565378

2021-005115-32 (EudraCT Number)

GALAXIES LUNG-201 (Other Identifier)

213824

Details and patient eligibility

About

This study will evaluate the efficacy, safety, pharmacokinetics (PK), and pharmacodynamics (PDy) of novel immunotherapy combinations compared with immunotherapy monotherapy in participants with Programmed death ligand-1 (PD L-1) high (Tumor cells [TC]/ Tumor proportion score [TPS] ≥ 50%), previously untreated, unresectable, locally advanced or metastatic NSCLC. Drug name mentioned as Belrestotug, GSK4428859A, and EOS884448 are all interchangeable for the same compound. In the rest of the document, the drug will be referred to as Belrestotug.

Enrollment: 300 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Histologically or cytologically confirmed diagnosis of locally advanced unresectable NSCLC not eligible for curative surgery and/or definitive radiotherapy with or without chemotherapy or metastatic NSCLC (squamous or non squamous)
• No prior systemic therapy for their locally advanced or metastatic NSCLC
• Provides a fresh tumor tissue sample or recent archival sample collected within 2 years prior to screening
• PD-L1-high (TC/TPS ≥ 50%) tumor
• Measurable disease based on RECIST 1.1, as determined by the investigator
• Eastern Cooperative Oncology Group (ECOG) Performance Status score of 0 or 1
• Adequate baseline organ function
• Female participants of childbearing potential must use adequate contraception

Exclusion criteria

• Presence of Epidermal growth factor receptor (EGFR) mutations, Anaplastic lymphoma kinase (ALK) translocations, or other known genomic aberrations or oncogenic driver mutations for which a locally approved therapy is available. All participants with non squamous histology must have been tested for EGFR mutation and ALK translocation status
• Had major surgery within 4 weeks or lung radiation of >30 grays (Gy) therapy within 6 months prior to the first dose of study intervention
• Received prior therapy with any immune checkpoint inhibitors
• Never smoker, defined as smoking <100 tobacco cigarettes in a lifetime
• Has an invasive malignancy or history of invasive malignancy other than the disease under study within the last 5 years (clinical exceptions apply as per protocol)
• Symptomatic, untreated, or actively progressing brain metastases and/or leptomeningeal disease (regardless of symptomatology, treatment status, or stability)
• Autoimmune disease or syndrome that required systemic treatment within the past 2 years
• Receiving any form of immunosuppressive medication
• Received any live vaccine ≤ 30 days prior to first dose of study intervention
• Any history of idiopathic pulmonary fibrosis, organizing pneumonia, drug induced pneumonitis, idiopathic pneumonitis, or evidence of active pneumonitis
• History or evidence of cardiac abnormalities ≤6 months prior to enrollment
• Current unstable liver or biliary disease
• Severe infection within 4 weeks prior to randomization
• Positive for tuberculosis, human immunodeficiency virus (HIV) infection, hepatitis B, or hepatitis C
• Has advanced, symptomatic, or visceral spread and is considered to be at imminent risk of life-threatening complications (including, but not limited to, massive uncontrolled effusions [e.g., pleural, pericardial, peritoneal])
• Is currently participating in or has participated in a study of an investigational therapy within 4 weeks prior to the first dose of study intervention
• Has a history of allogeneic tissue/stem cell transplant or solid organ transplant

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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300 participants in 6 patient groups

Pembrolizumab Monotherapy

Active Comparator group

Description:

Participants will be administered an intravenous (IV) infusion of pembrolizumab as monotherapy in a fixed dose.

Treatment:

Drug: Pembrolizumab

Dostarlimab Monotherapy

Experimental group

Description:

Participants will be administered an IV infusion of dostarlimab as monotherapy in a fixed dose.

Treatment:

Drug: Dostarlimab

Substudy 1A

Experimental group

Description:

Participants will be administered an IV infusion of dostarlimab in a fixed dose followed by an IV infusion of belrestotug in a fixed dose (Dose A).

Treatment:

Drug: Dostarlimab

Drug: Belrestotug

Substudy 1B

Experimental group

Description:

Participants will be administered an IV infusion of dostarlimab in a fixed dose followed by an IV infusion of belrestotug in a fixed dose (Dose B).

Treatment:

Drug: Dostarlimab

Drug: Belrestotug

Substudy 1C

Experimental group

Description:

Participants will be administered an IV infusion of dostarlimab in a fixed dose followed by an IV infusion of belrestotug in a fixed dose (Dose C).

Treatment:

Drug: Dostarlimab

Drug: Belrestotug

Substudy 2

Experimental group

Description:

Participants will be administered an IV infusion of dostarlimab in a fixed dose followed by an IV infusion of belrestotug along with IV infusion of GSK6097608 in a fixed dose.

Treatment:

Drug: Dostarlimab

Drug: Belrestotug

Drug: GSK6097608