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Neoadjuvant and Adjuvant Therapy Studies of Sintilimab Combined With Chemotherapy With or Without Ipilimumab N01 in Resectable Gastric/Gastroesophageal Junction Adenocarcinoma

A Randomized, Double-Blind, Phase II/III Clinical Study of the Efficacy and Safety of Sintilimab Combined With Chemotherapy With or Without Ipilimumab N01 in Perioperative Treatment of Resectable Gastric/Gastroesophageal Junction Adenocarcinoma

This is a Randomized, Double-Blind, Phase II/III Clinical Study of the Efficacy and Safety of Sintilimab Combined with Chemotherapy With or Without Ipilimumab N01 in Perioperative Treatment of Resectable Gastric/Gastroesophageal Junction Adenocarcinoma.

Panoramica dello studio

Tipo di studio

Interventistico

Iscrizione (Stimato)

720

Fase

  • Fase 2
  • 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

Luoghi di studio

    • Guangdong
      • Guangzhou, Guangdong, Cina, 510060
        • Sun Yat-sen University Cancer Center
        • Contatto:

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. Signed written Informed Consent Form (ICF) and ability to comply with protocol-specified visits and related procedures.
  2. Age ≥ 18 years.
  3. Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1.
  4. Expected survival ≥ 6 months.
  5. Histologically confirmed adenocarcinoma of the stomach or gastroesophageal junction (GEJ). For GEJ cancer, only Siewert type III and Siewert type II participants not requiring combined thoracotomy are eligible.
  6. Clinical stage T3-4Nany or TanyN+M0 (stage II-IVa) gastric/GEJ adenocarcinoma confirmed by endoscopic ultrasound or contrast-enhanced CT/MRI within 4 weeks before the first dose, per the American Joint Committee on Cancer (AJCC) 8th edition gastric cancer TNM staging system.
  7. Within 4 weeks before the first dose, evaluated by a responsible surgeon based on medical history and confirmed to meet study requirements for radical R0 resection.

Exclusion Criteria

  1. Histologically or cytologically confirmed other pathologic types (e.g., squamous cell carcinoma, sarcoma, undifferentiated carcinoma) or combined gastrointestinal stromal tumor (GIST) before randomization.
  2. Suspicious metastatic lesions or locally advanced unresectable disease, regardless of stage.
  3. History of gastrointestinal perforation or fistula within 6 months before randomization. May be enrolled if perforation/fistula has been surgically treated (repaired/resected) and disease recovery/remission is confirmed by the investigator.
  4. Active diverticulitis, intra-abdominal abscess, or gastrointestinal obstruction.
  5. Inability to swallow, malabsorption syndrome, or uncontrolled nausea/vomiting/diarrhea, or other severe gastrointestinal diseases affecting drug intake/absorption.
  6. Any life-threatening bleeding event within 3 months before randomization, or grade 3/4 gastrointestinal/variceal bleeding requiring endoscopic/surgical intervention.
  7. Active uncontrolled bleeding or known bleeding diathesis.

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: Separare

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Comparatore attivo: Sintilimab

Neoadjuvant Treatment period: up to 3 cycles of sintilimab plus chemotherapy in combination with Ipilimumab N01 prior to surgery.

adjuvant Treatment period: Subjects will receive 5 cycles of sintilimab plus chemotherapy, and then receive sintilimab therapy after surgery until disease recurrence, unacceptable toxicity, receiving new anti-tumor therapy, withdrawal of informed consent (ICF), lost to follow-up or death, or other conditions that require treatment discontinuation (whichever occurs first). The maximum duration of postoperative treatment with either sintilimab or placebo is 13 cycles.

40mg/m2, D1-14 BID PO Q3W
200mg D1 IV Q3W
130 mg/m2 D1 IV Q3W
1mg/kg, D1 IV Q6W
Sperimentale: Sintilimab+Ipilimumab N01

Neoadjuvant Treatment period: up to 3 cycles of sintilimab plus chemotherapy in combination with Ipilimumab N01 prior to surgery.

adjuvant Treatment period: Subjects will receive 5 cycles of sintilimab plus chemotherapy, and then receive sintilimab therapy after surgery until disease recurrence, unacceptable toxicity, receiving new anti-tumor therapy, withdrawal of informed consent (ICF), lost to follow-up or death, or other conditions that require treatment discontinuation (whichever occurs first). The maximum duration of postoperative treatment with either sintilimab or placebo is 13 cycles.

40mg/m2, D1-14 BID PO Q3W
200mg D1 IV Q3W
130 mg/m2 D1 IV Q3W
1mg/kg, D1 IV Q6W
Comparatore attivo: Sintilimab placebo+Ipilimumab N01 placebo

Neoadjuvant Treatment period: up to 3 cycles of sintilimab placebo plus chemotherapy in combination with Ipilimumab N01 Placebo prior to surgery.

adjuvant Treatment period: Subjects will receive 5 cycles of sintilimab placebo plus chemotherapy, and then receive sintilimab placebo therapy after surgery until disease recurrence, unacceptable toxicity, receiving new anti-tumor therapy, withdrawal of informed consent (ICF), lost to follow-up or death, or other conditions that require treatment discontinuation (whichever occurs first). The maximum duration of postoperative treatment with either sintilimab or placebo is 13 cycles.

40mg/m2, D1-14 BID PO Q3W
130 mg/m2 D1 IV Q3W
1mg/kg, D1 IV Q6W
200 mg, D1 IV Q3W

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Major Pathological Response (MPR) rate in Resectable Gastric/Gastroesophageal Junction Adenocarcinoma
Lasso di tempo: Up to approximately 6 weeks following the beginning of Post-operative Assessment baseline(up to Study 2 years )
The MPR rate is defined as the proportion of participants with a Tumor Regression Grade (TRG) score of 0 or 1 in the primary tumor after radical surgical resection following neoadjuvant therapy.
Up to approximately 6 weeks following the beginning of Post-operative Assessment baseline(up to Study 2 years )
Event-Free Survival (EFS)
Lasso di tempo: Up to approximately 5 years
The EFS is defined as the time from randomization to the first occurrence of disease progression precluding curative resection, postoperative local recurrence, distant metastasis, or death from any cause.
Up to approximately 5 years

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Sopravvivenza globale (OS)
Lasso di tempo: Fino a circa 5 anni
L'OS è definita come il tempo che intercorre tra la randomizzazione e la morte per qualsiasi causa.
Fino a circa 5 anni
pathological Complete Response (pCR) rate
Lasso di tempo: Up to approximately 6 weeks following the beginning of Post-operative Assessment baseline(up to Study 2 years )
The pCR rate is defined as the proportion of participants with no residual viable tumor in both the primary tumor and lymph nodes after radical surgical resection following neoadjuvant therapy.
Up to approximately 6 weeks following the beginning of Post-operative Assessment baseline(up to Study 2 years )
Clinical Down-staging Rate
Lasso di tempo: Up to approximately 6 weeks following the beginning of Post-operative Assessment baseline(up to Study 2 years )
Clinical downstaging rate refers to the proportion of participants with a reduction in clinical TNM (cTNM) stage after neoadjuvant therapy.
Up to approximately 6 weeks following the beginning of Post-operative Assessment baseline(up to Study 2 years )
R0 resection rate
Lasso di tempo: Up to approximately 6 weeks following the beginning of Post-operative Assessment baseline(up to Study 2 years )
The R0 resection rate is defined as the proportion of participants who underwent R0 resection.
Up to approximately 6 weeks following the beginning of Post-operative Assessment baseline(up to Study 2 years )
numbers of subjects with adverse events
Lasso di tempo: Up to approximately 5 years
defined as any untoward medical occurrence, whether or not there is a causal relationship with the study drug, in a clinical study subject from the time informed consent form is signed
Up to approximately 5 years
numbers of subjects with serious adverse events
Lasso di tempo: Up to approximately 5 years
Defined as any serious untoward medical occurrence, whether or not there is a causal relationship with the study drug, in a clinical study subject from the time informed consent form is signed
Up to approximately 5 years

Collaboratori e investigatori

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

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 giugno 2026

Completamento primario (Stimato)

31 dicembre 2031

Completamento dello studio (Stimato)

31 dicembre 2031

Date di iscrizione allo studio

Primo inviato

4 giugno 2026

Primo inviato che soddisfa i criteri di controllo qualità

9 giugno 2026

Primo Inserito (Effettivo)

11 giugno 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

11 giugno 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

9 giugno 2026

Ultimo verificato

1 giugno 2026

Maggiori informazioni

Termini relativi a questo studio

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 .

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