A Study of GSK5764227 in Participants With Relapsed Small Cell Lung Cancer (SCLC)

NCT ID: NCT07099898

Last Updated: 2026-01-22

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

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

RECRUITING

Clinical Phase

PHASE3

Total Enrollment

300 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-08-11

Study Completion Date

2028-09-11

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

"In this study researchers are testing GSK5764227, a new medicine that targets specific proteins (B7-H3) on cancer cells, thereby reducing the cancers ability to grow and spread. This study specifically aims to evaluate how well GSK5764227 works in treating relapsed SCLC compared to standard treatment topotecan, by checking whether GSK5764227 makes cancers smaller or disappear completely and if it helps participants live longer. The study is also assessing whether GSK576227 is safe and tolerated well by participants compared to topotecan and provide a better understanding of the main side effects of both drugs. Participants with relapsed SCLC will be randomly divided into two groups: one group receiving GSK5764227 and the other receiving topotecan."

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Neoplasms, Lung

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

GSK5764227

Group Type EXPERIMENTAL

GSK5764227

Intervention Type BIOLOGICAL

GSK5764227 will be administered

Topotecan

Group Type ACTIVE_COMPARATOR

Topotecan

Intervention Type DRUG

Topotecan will be administered

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

GSK5764227

GSK5764227 will be administered

Intervention Type BIOLOGICAL

Topotecan

Topotecan will be administered

Intervention Type DRUG

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

Participants are eligible to be included in the study only if all of the following criteria apply:

* Adults \>18 or the minimum legal adult age at the time the informed consent form is signed
* Has histologically or cytologically confirmed extensive-stage small cell lung cancer (ES-SCLC).
* Has received 1 prior platinum-based systemic therapy with a PD- (L)1 inhibitor with at least 2 cycles of therapy and a chemotherapy free-interval of \>30 days, with documented progression
* Has at least 1 target lesion per RECIST 1.1, as determined by the investigator.
* Is capable of giving signed informed consent, including compliance with the requirements and restrictions listed in the ICF and in the protocol.
* Has an ECOG performance status of 0 or 1

Exclusion Criteria

Participants are excluded from the study if any of the following criteria apply:

* Pathological diagnosis of complex SCLC or transformed SCLC.
* Has received any prior therapy with an Antibody-drug conjugate (ADC) with a Topoisomerase-1 (TOPO1)-inhibitor payload or treatments targeting B7-H3.
* Has known sensitivity to study intervention components or excipients or other allergy that, in the opinion of the investigator or medical monitor, contraindicates participation in the study.
* Has severe, uncontrolled or active cardiovascular disorders.
* Has clinically significant bleeding symptoms or significant bleeding tendency within 1 month prior to the first dose.
* Known active infectious diseases requiring systemic treatment or known Human immunodeficiency virus (HIV).
* Has symptomatic brain metastases or untreated progression exclusively due to brain metastasis during or after the last treatment prior to screening, evidence of leptomeningeal/meningeal/brainstem metastasis or evidence of spinal cord metastases.
* Has any evidence of current interstitial lung disease or pneumonitis or a prior history of ILD or non-infectious pneumonitis requiring high dose steroids.
* Has documented Hepatitis B or Hepatitis C
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

GlaxoSmithKline

INDUSTRY

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

GSK Investigational Site

Mar del Plata, Buenos Aires, Argentina

Site Status RECRUITING

GSK Investigational Site

Buenos Aires, , Argentina

Site Status RECRUITING

GSK Investigational Site

Ciudad Autonoma de Buenos Aire, , Argentina

Site Status RECRUITING

GSK Investigational Site

Ciudad Autonoma de Buenos Aire, , Argentina

Site Status RECRUITING

GSK Investigational Site

Rosario, , Argentina

Site Status RECRUITING

GSK Investigational Site

Vicente López, , Argentina

Site Status RECRUITING

GSK Investigational Site

Blacktown, New South Wales, Australia

Site Status RECRUITING

GSK Investigational Site

St Leonards, New South Wales, Australia

Site Status RECRUITING

GSK Investigational Site

Nedlands, Western Australia, Australia

Site Status RECRUITING

GSK Investigational Site

CuritibaPR, , Brazil

Site Status RECRUITING

GSK Investigational Site

Porto Alegre, , Brazil

Site Status RECRUITING

GSK Investigational Site

São Paulo, , Brazil

Site Status RECRUITING

GSK Investigational Site

Ottawa, Ontario, Canada

Site Status RECRUITING

GSK Investigational Site

Toronto, Ontario, Canada

Site Status RECRUITING

GSK Investigational Site

Montreal, Quebec, Canada

Site Status RECRUITING

GSK Investigational Site

Vaasa, , Finland

Site Status RECRUITING

GSK Investigational Site

Athens, , Greece

Site Status RECRUITING

GSK Investigational Site

Pylaia Thessaloniki, , Greece

Site Status RECRUITING

GSK Investigational Site

Jerusalem, , Israel

Site Status RECRUITING

GSK Investigational Site

Fukuoka, , Japan

Site Status RECRUITING

GSK Investigational Site

Hokkaido, , Japan

Site Status RECRUITING

GSK Investigational Site

Ishikawa, , Japan

Site Status RECRUITING

GSK Investigational Site

Kagoshima, , Japan

Site Status RECRUITING

GSK Investigational Site

Kanagawa, , Japan

Site Status RECRUITING

GSK Investigational Site

Kochi, , Japan

Site Status RECRUITING

GSK Investigational Site

Kyoto, , Japan

Site Status RECRUITING

GSK Investigational Site

Mie, , Japan

Site Status RECRUITING

GSK Investigational Site

Osaka, , Japan

Site Status RECRUITING

GSK Investigational Site

Osaka, , Japan

Site Status RECRUITING

GSK Investigational Site

Osaka, , Japan

Site Status RECRUITING

GSK Investigational Site

Tokyo, , Japan

Site Status RECRUITING

GSK Investigational Site

Tokyo, , Japan

Site Status RECRUITING

GSK Investigational Site

Toyama, , Japan

Site Status RECRUITING

GSK Investigational Site

Guadalajara, , Mexico

Site Status RECRUITING

GSK Investigational Site

Mexico City, , Mexico

Site Status RECRUITING

GSK Investigational Site

Mexico City, , Mexico

Site Status RECRUITING

GSK Investigational Site

Monterrey, , Mexico

Site Status RECRUITING

GSK Investigational Site

Changwon, , South Korea

Site Status RECRUITING

GSK Investigational Site

Cheongju Chungcheongbuk-do, , South Korea

Site Status RECRUITING

GSK Investigational Site

Daegu, , South Korea

Site Status RECRUITING

GSK Investigational Site

Gyeonggi-do, , South Korea

Site Status RECRUITING

GSK Investigational Site

Seongnam-si Gyeonggi-do, , South Korea

Site Status RECRUITING

GSK Investigational Site

Seoul, , South Korea

Site Status RECRUITING

GSK Investigational Site

Suwon Gyeonggi-do, , South Korea

Site Status RECRUITING

GSK Investigational Site

Ulsan, , South Korea

Site Status RECRUITING

GSK Investigational Site

Stockholm, , Sweden

Site Status RECRUITING

GSK Investigational Site

Basel, , Switzerland

Site Status RECRUITING

GSK Investigational Site

Adana, Adana, Turkey (Türkiye)

Site Status RECRUITING

GSK Investigational Site

Samsun, Atakum, Turkey (Türkiye)

Site Status RECRUITING

GSK Investigational Site

Ankara, , Turkey (Türkiye)

Site Status RECRUITING

GSK Investigational Site

Ankara, , Turkey (Türkiye)

Site Status RECRUITING

GSK Investigational Site

Ankara, , Turkey (Türkiye)

Site Status RECRUITING

GSK Investigational Site

Diyarbakır, , Turkey (Türkiye)

Site Status RECRUITING

GSK Investigational Site

Istanbul, , Turkey (Türkiye)

Site Status RECRUITING

GSK Investigational Site

Izmir, , Turkey (Türkiye)

Site Status RECRUITING

GSK Investigational Site

Izmir, , Turkey (Türkiye)

Site Status RECRUITING

GSK Investigational Site

London, , United Kingdom

Site Status RECRUITING

GSK Investigational Site

Portsmouth, , United Kingdom

Site Status RECRUITING

GSK Investigational Site

Truro, , United Kingdom

Site Status RECRUITING

Countries

Review the countries where the study has at least one active or historical site.

Argentina Australia Brazil Canada Finland Greece Israel Japan Mexico South Korea Sweden Switzerland Turkey (Türkiye) United Kingdom

Central Contacts

Reach out to these primary contacts for questions about participation or study logistics.

US GSK Clinical Trials Call Center

Role: CONTACT

877-379-3718

EU GSK Clinical Trials Call Center

Role: CONTACT

+44 (0) 20 89904466

Facility Contacts

Find local site contact details for specific facilities participating in the trial.

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

2025-521627-78

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

223674

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.