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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.

Studienübersicht

Studientyp

Interventionell

Einschreibung (Geschätzt)

720

Phase

  • Phase 2
  • Phase 3

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

Studienorte

    • Guangdong
      • Guangzhou, Guangdong, China, 510060
        • Sun Yat-sen University Cancer Center
        • Kontakt:

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Erwachsene
  • Älterer Erwachsener

Akzeptiert gesunde Freiwillige

Nein

Beschreibung

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.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: Zufällig
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Single

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Aktiver Komparator: 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
Experimental: 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
Aktiver Komparator: 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

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Major Pathological Response (MPR) rate in Resectable Gastric/Gastroesophageal Junction Adenocarcinoma
Zeitfenster: 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)
Zeitfenster: 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

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Gesamtüberleben (OS)
Zeitfenster: Bis ca. 5 Jahre
OS ist definiert als die Zeit von der Randomisierung bis zum Tod aus irgendeinem Grund.
Bis ca. 5 Jahre
pathological Complete Response (pCR) rate
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Geschätzt)

15. Juni 2026

Primärer Abschluss (Geschätzt)

31. Dezember 2031

Studienabschluss (Geschätzt)

31. Dezember 2031

Studienanmeldedaten

Zuerst eingereicht

4. Juni 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

9. Juni 2026

Zuerst gepostet (Tatsächlich)

11. Juni 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

11. Juni 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

9. Juni 2026

Zuletzt verifiziert

1. Juni 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

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