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To Evaluate Efficacy and Safety of Serplulimab + Chemotherapy (Carboplatin- Etoposide) in US Patients With ES-SCLC

A Randomized, Open-label Study of Serplulimab Plus Chemotherapy (Carboplatin-Etoposide) in Comparison With Atezolizumab Plus Chemotherapy in Previously Untreated US Patients With Extensive Stage Small Cell Lung Cancer (ES-SCLC) (ASTRIDE)

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05468489
Enrollment
200
Registered
2022-07-21
Start date
2022-11-18
Completion date
2027-12-31
Last updated
2025-10-21

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

Conditions

Extensive Stage Small Cell Lung Cancer

Keywords

Extensive Stage Small Cell Lung Cancer, Anti-PD-1 Monoclonal Antibody

Brief summary

This is a randomized, open-label study of Serplulimab plus chemotherapy (Carboplatin-Etoposide) in comparison with Atezolizumab plus chemotherapy in previously untreated US patients with ES-SCLC. Subjects in this study will be randomized to arm A or B at 1:1 ratio as follows: * Arm A (Serplulimab): Serplulimab + chemotherapy (carboplatin-etoposide) * Arm B (control): Atezolizumab + chemotherapy (carboplatin-etoposide)

Interventions

DRUGSerplulimab + chemotherapy (carboplatin-etoposide)

Drug: Serplulimab is an innovative monoclonal antibody targeting PD-1,developed by Shanghai Henlius Biotech, Inc. Drug: carboplatin and etoposide chemotherapeutics

DRUGAtezolizumab + chemotherapy (carboplatin-etoposide)

Drug: Atezolizumab is a monoclonal antibody targeting PD-L1,developed by Roche Pharma AG. Drug: carboplatin and etoposide chemotherapeutics

Sponsors

Shanghai Henlius Biotech
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

Voluntary participation in clinical studies. Male or female aged ≥ 18 years at the time of signing the ICF. Histologically or cytologically diagnosed with ES-SCLC (according to the Veterans Administration Lung Study Group staging system). No prior systemic therapy for ES-SCLC. At least one measurable lesion as assessed according to RECIST 1.1 within 4 weeks prior to randomization. Major organs are functioning well. Every effort should be made to provide tumor tissues for the determination of PD-L1 expression. An ECOG PS score of 0 or 1. An expected survival ≥ 12 weeks. Subjects with prior denosumab use that can and agree to switch to bisphosphonate therapy for bone metastases starting prior to randomization and throughout treatment. Participant must keep contraception.

Exclusion criteria

Histologically or cytologically confirmed mixed SCLC. Known history of severe allergy to any monoclonal antibody. Known hypersensitivity to carboplatin or etoposide. Patients with myocardial infarction within half a year before the first dose of the study drug, poorly controlled arrhythmia. Pregnant or breastfeeding females. Patients with a known history of psychotropic drug abuse or drug addiction. Patients who have other factors that could lead to the early termination of this study based on the investigator's judgment.

Design outcomes

Primary

MeasureTime frameDescription
OSA period from randomization through death regardless of causality (approximately up to 24 months).Overall assessment

Secondary

MeasureTime frameDescription
PFSapproximately up to 24 monthsProgression-free survival
Number of participants with treatment-related adverse events as assessed by CTCAE v5.0approximately up to 24 monthsAdverse events are described and graded using the grading categories defined in CTCAE, Version 5.0
ORRapproximately up to 14 monthsObjective response rate
Minimum Plasma Concentration (Cmin)approximately up to 24 monthsThe minimum concentration (Cmin) of Serplulimab will be measured
Average Plasma Concentration (Cavg)approximately up to 24 monthsThe average Plasma Concentration (Cavg) of Serplulimab will be measured
Maximum Plasma Concentration (Cmax)approximately up to 24 monthsThe maximum concentration (Cmax) of Serplulimab will be measured

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026