Status:

RECRUITING

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

Lead Sponsor:

GlaxoSmithKline

Conditions:

Neoplasms, Lung

Eligibility:

All Genders

18+ years

Phase:

PHASE3

Brief Summary

"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 specifical...

Eligibility Criteria

Inclusion

  • 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

  • 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

Key Trial Info

Start Date :

August 11 2025

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

September 28 2029

Estimated Enrollment :

420 Patients enrolled

Trial Details

Trial ID

NCT07099898

Start Date

August 11 2025

End Date

September 28 2029

Last Update

March 6 2026

Active Locations (102)

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Page 1 of 26 (102 locations)

1

GSK Investigational Site

Mar del Plata, Buenos Aires, Argentina, 7600

2

GSK Investigational Site

Buenos Aires, Argentina, C1426ABP

3

GSK Investigational Site

Ciudad Autonoma de Buenos Aire, Argentina, C1012AAR

4

GSK Investigational Site

Ciudad Autonoma de Buenos Aire, Argentina, C1426AGE