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A Study Comparing QLC5508 in Combination With QL2107 Versus Tislelizumab Plus Platinum-based Chemotherapy in Participants Wih Treatment-naïve Extensive-Stage Small Cell Lung Cancer

30 agosto 2026 aggiornato da: Qilu Pharmaceutical Co., Ltd.

A Phase III, Randomized, Controlled, Open-label Clinical Study to Compare the Efficacy and Safety of QLC5508 in Combination With QL2107 Versus Tislelizumab Plus Platinum-based Chemotherapy as First-line Treatment in Participants With Extensive-stage Small Cell Lung Cancer

This trial is a Phase III, randomized, open-label, multicenter study to evaluate the efficacy and safety of QLC5508 in combination with QL2107 versus Tislelizumab plus platinum and etoposide as first-line treatment in participants with extensive-stage small cell lung cancer.

Panoramica dello studio

Stato

Non ancora reclutamento

Condizioni

Intervento / Trattamento

Tipo di studio

Interventistico

Iscrizione (Stimato)

556

Fase

  • Fase 3

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

  • Adulto
  • Adulto più anziano

Accetta volontari sani

No

Descrizione

Inclusion Criteria:

  1. Age ≥18 years.
  2. Participants with histologically or cytologically confirmed Extensive-Stage Small Cell Lung Cancer (ES-SCLC) per the Veterans Administration Lung Cancer Study Group (VALG) staging system.
  3. No prior systemic treatment for ES-SCLC.
  4. At least one extracranial measurable lesion according to RECIST v1.1.
  5. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1, without deterioration within 2 weeks prior to the first dose of study treatment.
  6. Life expectancy ≥12 weeks.
  7. Has adequate organ function.
  8. Male and female participants of reproductive/childbearing potential must agree to avoid pregnancy.
  9. Voluntarily sign the written informed consent form and comply with the protocol requirements.

Exclusion Criteria:

  1. Has received or undergoing any of the following treatment:

    Previous or current treatment with B7-H3 targeted therapy. Previous or current treatment with topoisomerase I inhibitors.

  2. Participants with transformed Non-Small Cell Lung Cancer (NSCLC), epidermal growth factor receptor (EGFR) mutation-positive NSCLC that has transformed to SCLC, or mixed SCLC-NSCLC histology.
  3. Presence with active brain metastases, leptomeningeal metastasis, brainstem metastasis or spinal cord compression.
  4. Radiotherapy with a limited field of radiation within 2 weeks prior to the study treatment; more than 30% of the bone marrow irradiation or large-scale radiotherapy within 4 weeks prior to study treatment.
  5. Major surgery within 4 weeks prior to the study treatment.
  6. Unresolved AEs ≥ Grade 2 (CTCAE v6.0) from prior therapy.
  7. Previous or concurrent primary malignancies.
  8. History of severe heart disease or cerebrovascular disease.
  9. History of Severe or uncontrolled hypertension or diabetes mellitus.
  10. Severe infection within 4 weeks prior to study treatment; or uncontrolled active infection at screening.
  11. Known or suspected interstitial lung disease/non-infectious pneumonitis; or other moderate to severe pulmonary diseases that significantly impair respiratory function and may interfere with the detection or management of drug-related pulmonary toxicity.
  12. Known history of pre-existing or newly diagnosed autoimmune disease.
  13. History of severe neuropathy or mental disorders.
  14. History of severe hypersensitivity reaction, severe infusion reaction or idiosyncrasy to drugs chemically related to study drugs or any components of the study drugs.
  15. Unlikely to comply with study procedures and requirements in the opinion of the investigator.
  16. Any disease or condition that, in the opinion of the investigator, would compromise participant safety or interfere with study assessments.

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: QLC5508 in combination with QL2107
QLC5508 will be administered intravenously once every 3 weeks. Treatment will continue until disease progression or unacceptable toxicity, whichever occurs first.
QL2107 will be administered intravenously once every 3 weeks. Treatment will continue until disease progression or unacceptable toxicity. The maximum treatment duration for QL2107 will be 2 years.
Comparatore attivo: Tislelizumab in Combination with Platinum-based Chemotherapy
Tislelizumab will be administered intravenously once every 3 weeks. Treatment will continue until disease progression or unacceptable toxicity. The maximum treatment duration for Tislelizumab will be 2 years.
Carboplatin will be administered intravenously once every 3 weeks. Carboplatin treatment will be administered for up to 4 cycles.
Cisplatin will be administered intravenously once every 3 weeks. Cisplatin treatment will be administered for up to 4 cycles.
Etoposide will be administered intravenously once every 3 weeks. Etoposide treatment will be administered for up to 4 cycles.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Overall survival (OS)
Lasso di tempo: Up to approximately 36 months
OS is defined as the duration from the date of randomization to the date of death due to any cause.
Up to approximately 36 months

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Progression-free survival (PFS)
Lasso di tempo: Up to approximately 36 months
PFS is defined as the duration from the date of randomization to the date of first documented progressive disease (PD) based on investigator assessment, or death from any cause, whichever occurs first.
Up to approximately 36 months
Objective response rate (ORR)
Lasso di tempo: Up to approximately 36 months
ORR is defined as the percentage of participants achieved complete response or partial response as assessed according to RECIST v1.1 criteria.
Up to approximately 36 months
Duration of response (DOR)
Lasso di tempo: Up to approximately 36 months
DOR is defined as the duration from the first documented objective response to the first documented disease progression or death from any cause, whichever occurs first.
Up to approximately 36 months
Disease control rate (DCR)
Lasso di tempo: Up to approximately 36 months
DCR is defined as the percentage of participants achieved complete response, partial response, or stable disease as assessed according to RECIST v1.1 criteria.
Up to approximately 36 months
6-month PFS rate
Lasso di tempo: Up to approximately 36 months
The 6-month PFS rate is defined as the proportion of participants who have not experienced PD and who are alive at 6 months from the date of randomization.
Up to approximately 36 months
12-month PFS rate
Lasso di tempo: Up to approximately 36 months
The 12-month PFS rate is defined as the proportion of participants who have not experienced PD and who are alive at 12 months from the date of randomization.
Up to approximately 36 months
12-month OS rate
Lasso di tempo: Up to approximately 36 months
The 12-month OS rate is defined as the proportion of participants who are alive at 12 months from the date of randomization.
Up to approximately 36 months
24-month OS rate
Lasso di tempo: Up to approximately 36 months
The 24-month OS rate is defined as the proportion of participants who are alive at 24 months from the date of randomization.
Up to approximately 36 months
Treatment Emergent Adverse Event (TEAE)
Lasso di tempo: Up to approximately 36 months

TEAEs are defined as any adverse event (AE) that occurs after the initiation of study treatment, or any pre-existing condition that worsens in severity or frequency after the initiation of study treatment, regardless of the causal relationship to the study treatment.

TEAEs will be graded and summarized by type, frequency, and severity according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE), version 6.0.

Up to approximately 36 months

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Stimato)

15 ottobre 2026

Completamento primario (Stimato)

15 marzo 2029

Completamento dello studio (Stimato)

15 giugno 2030

Date di iscrizione allo studio

Primo inviato

30 agosto 2026

Primo inviato che soddisfa i criteri di controllo qualità

30 agosto 2026

Primo Inserito (Effettivo)

3 settembre 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

3 settembre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

30 agosto 2026

Ultimo verificato

1 agosto 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • QLC5508-304

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .