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

NCT ID: NCT05565378

Last Updated: 2026-01-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE2

Total Enrollment

351 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-10-14

Study Completion Date

2027-02-26

Brief Summary

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This study will monitor the safety of novel immunotherapy combinations 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 non-small cell lung cancer (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.

Detailed Description

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Conditions

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Lung Cancer, Non-Small Cell

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Pembrolizumab Monotherapy

Participants will be administered with pembrolizumab as monotherapy in a fixed dose.

Group Type ACTIVE_COMPARATOR

Pembrolizumab

Intervention Type DRUG

Pembrolizumab will be administered.

Dostarlimab Monotherapy

Participants will be administered with dostarlimab as monotherapy in a fixed dose.

Group Type EXPERIMENTAL

Dostarlimab

Intervention Type DRUG

Dostarlimab will be administered

Substudy 1A

Participants will be administered with dostarlimab in a fixed dose followed by belrestotug in a fixed dose (Dose A).

Group Type EXPERIMENTAL

Dostarlimab

Intervention Type DRUG

Dostarlimab will be administered

Belrestotug

Intervention Type DRUG

Belrestotug will be administered.

Substudy 1B

Participants will be administered with dostarlimab in a fixed dose followed by belrestotug in a fixed dose (Dose B).

Group Type EXPERIMENTAL

Dostarlimab

Intervention Type DRUG

Dostarlimab will be administered

Belrestotug

Intervention Type DRUG

Belrestotug will be administered.

Substudy 1C

Participants will be administered with dostarlimab in a fixed dose followed by belrestotug in a fixed dose (Dose C).

Group Type EXPERIMENTAL

Dostarlimab

Intervention Type DRUG

Dostarlimab will be administered

Belrestotug

Intervention Type DRUG

Belrestotug will be administered.

Substudy 2A

Participants will be administered with dostarlimab, fixed dose belrestotug, and fixed dose nelistotug

Group Type EXPERIMENTAL

Dostarlimab

Intervention Type DRUG

Dostarlimab will be administered

Belrestotug

Intervention Type DRUG

Belrestotug will be administered.

Nelistotug

Intervention Type DRUG

Nelistotug will be administered.

Interventions

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Pembrolizumab

Pembrolizumab will be administered.

Intervention Type DRUG

Dostarlimab

Dostarlimab will be administered

Intervention Type DRUG

Belrestotug

Belrestotug will be administered.

Intervention Type DRUG

Nelistotug

Nelistotug will be administered.

Intervention Type DRUG

Other Intervention Names

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GSK4057190 EOS884448 GSK4428859A GSK6097608

Eligibility Criteria

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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 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

* Has NSCLC with a tumor that harbors any of the following molecular alterations: EGFR and /or ALK translocations mutations that are sensitive to available targeted inhibitor therapy, Any other known genomic aberrations or oncogenic driver mutations for which a locally approved targeted therapy is available for first-line treatment of locally advanced or metastatic NSCLC.
* Had major surgery within 4 weeks or lung radiation of \>30 Gy therapy within 6 months prior to the first dose of study intervention
* Received prior therapy with any immune checkpoint inhibitors
* Never smoked, 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 or any leptomeningeal disease (regardless of symptomatology, treatment status, or stability)
* Autoimmune disease or syndrome that required systemic treatment within the past 2 years
* Receiving systemic steroid therapy \<= 3 days prior to first dose of study intervention or 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
* Current unstable liver or biliary disease
* Severe infection within 4 weeks prior to the first dose of study intervention
* Positive for tuberculosis, human immunodeficiency virus (HIV) infection, hepatitis B surface antigen, 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
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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iTeos Therapeutics

INDUSTRY

Sponsor Role collaborator

GlaxoSmithKline

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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GSK Clinical Trials

Role: STUDY_DIRECTOR

GlaxoSmithKline

Locations

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GSK Investigational Site

Plantation, Florida, United States

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Albuquerque, New Mexico, United States

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Chattanooga, Tennessee, United States

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Morgantown, West Virginia, United States

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Buenos Aires, , Argentina

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Cipoletti Rio Negro, , Argentina

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Ciudad Autonoma de Buenos Aire, , Argentina

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Ciudad Autonoma de Buenos Aire, , Argentina

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Florida, , Argentina

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Mar del Plata, , Argentina

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San Juan, , Argentina

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Santa Fe, , Argentina

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Wilrijk, , Belgium

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Barretos, , Brazil

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Porto Alegre, , Brazil

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São Paulo, , Brazil

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Vitória, , Brazil

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Oulu, , Finland

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Tampere, , Finland

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Turku, , Finland

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Vaasa, , Finland

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Bordeaux, , France

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Caen, , France

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Marseille, , France

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Quimper, , France

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Strasbourg, , France

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Berlin, , Germany

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Essen, , Germany

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Großhansdorf, , Germany

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Heidelberg, , Germany

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Jena, , Germany

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Athens, , Greece

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Haidari - Athens, , Greece

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Larissa, , Greece

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PapagosAthens, , Greece

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Pylaia Thessaloniki, , Greece

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Thessaloniki, , Greece

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Thessaloniki, , Greece

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Budapest, , Hungary

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Gyöngyös, , Hungary

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Tatabánya, , Hungary

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Avellino, , Italy

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Bergamo, , Italy

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Genova, , Italy

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Pisa, , Italy

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Verona, , Italy

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Chiba, , Japan

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Fukuoka, , Japan

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Hyōgo, , Japan

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Kanagawa, , Japan

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Osaka, , Japan

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Saitama, , Japan

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Guadalajara, , Mexico

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San Luis Potosí City, , Mexico

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Enschede, , Netherlands

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Groningen, , Netherlands

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Leeuwarden, , Netherlands

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Utrecht, , Netherlands

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Lublin, , Poland

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Prabuty, , Poland

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Siedlce, , Poland

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Gaia, , Portugal

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Guimarães, , Portugal

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Lisbon, , Portugal

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Lisbon, , Portugal

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Porto, , Portugal

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Cape Town, , South Africa

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Parktown, , South Africa

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Incheon, , South Korea

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Seoul, , South Korea

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Seoul, , South Korea

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Suwon Gyeonggi-do, , South Korea

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Badajoz, , Spain

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Badalona, , Spain

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Barcelona, , Spain

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Barcelona, , Spain

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Las Palmas de Gran Canar, , Spain

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Madrid, , Spain

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Madrid, , Spain

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Madrid, , Spain

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Málaga, , Spain

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PamplonaNavarra, , Spain

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Valencia, , Spain

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Valencia, , Spain

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Bangkok, , Thailand

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Chiang Mai, , Thailand

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Kho Hong Hat Yai, , Thailand

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Khon Kaen, , Thailand

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Pathum Thani, , Thailand

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Samsun, Atakum, Turkey (Türkiye)

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Ankara, , Turkey (Türkiye)

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Ankara, , Turkey (Türkiye)

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Antalya, , Turkey (Türkiye)

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Istanbul, , Turkey (Türkiye)

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Abu Dhabi, , United Arab Emirates

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Abu Dhabi, , United Arab Emirates

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Middlesbrough, , United Kingdom

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Middlesex, , United Kingdom

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Wolverhampton, , United Kingdom

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Countries

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United States Argentina Belgium Brazil Finland France Germany Greece Hungary Italy Japan Mexico Netherlands Poland Portugal South Africa South Korea Spain Thailand Turkey (Türkiye) United Arab Emirates United Kingdom

Other Identifiers

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2021-005115-32

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

GALAXIES LUNG-201

Identifier Type: OTHER

Identifier Source: secondary_id

213824

Identifier Type: -

Identifier Source: org_study_id

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