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A Study of Neoadjuvant-adjuvant Durvalumab and FLOT Chemotherapy Followed by Adjuvant Durvalumab in Chinese Patients With Resectable GC/GEJC.

4 de noviembre de 2026 actualizado por: AstraZeneca

A Randomized, Double-blind, Placebo-controlled Study of Neoadjuvant-Adjuvant Durvalumab and FLOT Chemotherapy Followed by Adjuvant Durvalumab in Chinese Patients With Resectable Gastric and Gastroesophageal Junction Cancer (GC/GEJC) (MATTERHORN-CN).

This study aims to assess the efficacy and safety of neoadjuvant adjuvant treatment with durvalumab in combination with FLOT compared to placebo in combination with FLOT in Chinese patients with Resectable Gastric and Gastroesophageal Cancer (GC/GEJC) (MATTERHORN-CN).

Descripción general del estudio

Estado

Reclutamiento

Condiciones

Intervención / Tratamiento

Descripción detallada

Informed by the favorable benefit-risk profile demonstrated by the global MATTERHORN study, the current study is designed to assess the efficacy and safety of neoadjuvant-adjuvant durvalumab in combination with FLOT chemotherapy followed by adjuvant durvalumab monotherapy (Arm A), compared with neoadjuvant-adjuvant placebo in combination with FLOT chemotherapy followed by adjuvant placebo monotherapy (Arm B) in Chinese participants with resectable GC/GEJC. Approximately 140 participants will be randomized to either Arm A or Arm B.

Tipo de estudio

Intervencionista

Inscripción (Estimado)

140

Fase

  • Fase 3

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Estudio Contacto

Ubicaciones de estudio

      • Beijing, Porcelana, 102218
        • Aún no reclutando
        • Research Site
      • Beijing, Porcelana, 100050
        • Aún no reclutando
        • Research Site
      • Beijing, Porcelana, 100142
        • Reclutamiento
        • Research Site
      • Beijing, Porcelana, 100730
        • Aún no reclutando
        • Research Site
      • Beijing, Porcelana, 102206
        • Aún no reclutando
        • Research Site
      • Bengbu, Porcelana, 233004
        • Aún no reclutando
        • Research Site
      • Changchun, Porcelana, 130021
        • Aún no reclutando
        • Research Site
      • Changchun, Porcelana, 130033
        • Reclutamiento
        • Research Site
      • Changsha, Porcelana, 410008
        • Aún no reclutando
        • Research Site
      • Changzhi, Porcelana, 046000
        • Aún no reclutando
        • Research Site
      • Chengdu, Porcelana, 610041
        • Reclutamiento
        • Research Site
      • Chengdu, Porcelana, 610041
        • Aún no reclutando
        • Research Site
      • Chongqing, Porcelana, 400042
        • Aún no reclutando
        • Research Site
      • Fuzhou, Porcelana, 350001
        • Aún no reclutando
        • Research Site
      • Guangzhou, Porcelana, 510080
        • Aún no reclutando
        • Research Site
      • Guangzhou, Porcelana, 510120
        • Aún no reclutando
        • Research Site
      • Guangzhou, Porcelana, 510655
        • Aún no reclutando
        • Research Site
      • Hangzhou, Porcelana, 310014
        • Reclutamiento
        • Research Site
      • Hangzhou, Porcelana, 310016
        • Aún no reclutando
        • Research Site
      • Hohhot, Porcelana, 010020
        • Aún no reclutando
        • Research Site
      • Jinan, Porcelana, 250021
        • Aún no reclutando
        • Research Site
      • Jinan, Porcelana, 250014
        • Reclutamiento
        • Research Site
      • Kunming, Porcelana, 650118
        • Aún no reclutando
        • Research Site
      • Lanzhou, Porcelana, 730000
        • Reclutamiento
        • Research Site
      • Lanzhou, Porcelana, 730030
        • Aún no reclutando
        • Research Site
      • Meizhou, Porcelana, 514031
        • Reclutamiento
        • Research Site
      • Nanchang, Porcelana, 330006
        • Aún no reclutando
        • Research Site
      • Nanjing, Porcelana, 210029
        • Aún no reclutando
        • Research Site
      • Nanjing, Porcelana, 210009
        • Aún no reclutando
        • Research Site
      • Nanning, Porcelana, 530021
        • Aún no reclutando
        • Research Site
      • Qingdao, Porcelana, 266003
        • Reclutamiento
        • Research Site
      • Shanghai, Porcelana, 200032
        • Aún no reclutando
        • Research Site
      • Shanghai, Porcelana, 201210
        • Aún no reclutando
        • Research Site
      • Shanghai, Porcelana, 200031
        • Aún no reclutando
        • Research Site
      • Shaoguan, Porcelana, 512027
        • Reclutamiento
        • Research Site
      • Shenyang, Porcelana, 110042
        • Aún no reclutando
        • Research Site
      • Suining Shi, Porcelana, 629000
        • Reclutamiento
        • Research Site
      • Taiyuan, Porcelana, 030000
        • Aún no reclutando
        • Research Site
      • Wuhan, Porcelana, 430030
        • Aún no reclutando
        • Research Site
      • Xi'an, Porcelana, 710068
        • Reclutamiento
        • Research Site
      • Zhengzhou, Porcelana, 450000
        • Aún no reclutando
        • Research Site

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

18 años y mayores (Adulto, Adulto Mayor)

Acepta Voluntarios Saludables

No

Géneros elegibles para el estudio

Todos

Descripción

Inclusion Criteria:

  • 1. Capable of giving signed informed consent. 2. Male and/or Female, Age ≥ 18 years at the time of screening. 3. Histologically documented gastric or gastroesophageal junction adenocarcinoma with resectable disease, GEJC includes Siewert* type 2 and 3 tumour and Siewert* type 1 tumour.

    1. Per the judgment of the Investigator, participants must be medically fit for treatment with neoadjuvant FLOT therapy prior to radical surgery.

    2. At screening, complete surgical resection of the primary GC/GEJC must be deemed achievable, as assessed by a multidisciplinary evaluation, which must include a board certified GI surgeon.

    3. No prior anti-cancer therapy (eg, chemotherapy, radiation therapy, or chemoradiation therapy) for the current malignancy.

      4. ECOG PS of 0 or 1 with no deterioration over the previous 2 weeks prior to baseline at screening and prior to randomization.

      5. Adequate organ and marrow function as defined below:

    1. Haemoglobin ≥ 9.0 g/dL
    2. Absolute neutrophil count ≥ 1.5 × 109/L
    3. Platelet count ≥ 100 × 109/L
    4. Serum bilirubin ≤ 1.5 ×ULN. This will not apply to participants with confirmed Gilbert's syndrome, who will be allowed in consultation with their physician.
    5. ALT and AST ≤ 2.5 × ULN
    6. Measured CL > 50 mL/min or Calculated CL > 50 mL/min as determined by Cockcroft-Gault (using actual body weight) 6. Must have a life expectancy of at least 24 weeks. 7. Body weight > 30 kg at enrolment and randomization. 8. Meeting tumour sample requirements (at screening) to confirm PD-L1 status.

Exclusion Criteria:

  • -1. Participants with peritoneal dissemination (including tumour cells in peritoneal fluid) or distant metastasis.

    2. Participants with adenosquamous cell carcinoma, squamous cell carcinoma, or GI stromal tumour.

    3. History of allogeneic organ transplantation. 4. Active or prior documented autoimmune or inflammatory disorders (including inflammatory bowel disease [eg, colitis or Crohn's disease], systemic lupus erythematosus, sarcoidosis, granulomatosis with polyangiitis, Graves' disease, rheumatoid arthritis, hypophysitis, uveitis, etc), autoimmune pneumonitis, and autoimmune myocarditis.

    5. Uncontrolled intercurrent illness that would limit compliance with study requirement, substantially increase risk of incurring AEs or compromise the ability of the patient to give written informed consent.

    6. History of another primary malignancy except for

    (a) Malignancy treated with curative intent and with no known active disease ≥ 2 years before the first dose of study intervention and of low potential risk for recurrence (b) Adequately treated non-melanoma skin cancer or lentigo maligna without evidence of disease (c) Adequately treated carcinoma in situ without evidence of disease 7. History of active primary immunodeficiency. 8. Active infection including tuberculosis (clinical evaluation that includes clinical history, physical examination and radiographic findings, and tuberculosis testing in line with local practice) and HIV verified by positive HIV-1 or HIV-2 antibodies.

    9. Mean QTc ≥ 470 ms calculated from 3 ECGs (within 15 minutes at 5 minutes apart).

    10. Known allergy or hypersensitivity to any of the study interventions or any of the study intervention excipients.

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Tratamiento
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación paralela
  • Enmascaramiento: Cuadruplicar

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Arm A

Durvalumab +FLOT followed by durvalumab

A combination treatment made up of flurouroacil + leucovorin + oxaliplatin + docetaxel

Human monoclonal antibody

Comparador de placebos: Arm B

Placebo +FLOT followed by Placebo

A combination treatment made up of flurouroacil + leucovorin + oxaliplatin + docetaxel

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
To compare Arm A relative to Arm B on pCR rate
Periodo de tiempo: Up to 24 months after the last participant is randomized

pCR rate is defined as the proportion of participants who have no residual viable tumour in the resected specimens and as determined by central pathology review.

Up to 24 months after the last participant is randomized

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
To compare Arm A relative to Arm B on event-free survival at 24 months (EFS24)
Periodo de tiempo: Up to 24 months after the last participant is randomized

EFS24 is the proportion of participants alive and event free 24 months after randomization, according to Response Evaluation Criteria in Solid Tumours (RECIST) 1.1 per Investigator assessment and/or locally by pathology testing.

Up to 24 months after the last participant is randomized
To compare Arm A relative to Arm B on overall survival (OS)
Periodo de tiempo: Up to 24 months after the last participant is randomized

Overall survival is length of time from randomization until the date of death due to any cause.

Up to 24 months after the last participant is randomized
To compare Arm A relative to Arm B on event-free survival (EFS)
Periodo de tiempo: Up to 24 months after the last participant is randomized

EFS is defined as the time from randomization to the following, according to RECIST 1.1 per Investigator assessment and/or locally by pathology testing:

  1. Progression that precludes surgery or requires non-protocol therapy,
  2. Local or distant recurrence or progression of disease, or 3) Death due to any cause.
Up to 24 months after the last participant is randomized
To compare Arm A relative to Arm B on the rate of complete resection (R0)
Periodo de tiempo: Up to 24 months after the last participant is randomized

R0 resection (complete resection) rate is the proportion of participants who have a confirmed complete resection as assessed by pathology review.

Up to 24 months after the last participant is randomized
To compare Arm A relative to Arm B on metastasis-free survival (MFS) and disease-specific survival (DSS)
Periodo de tiempo: Up to 24 months after the last participant is randomized

MFS is the time from randomization until the development of metastasis using RECIST 1.1 or death due to any cause.

• DSS is the time from randomization untildeath due to GC/GEJC.

Up to 24 months after the last participant is randomized
To compare Arm A relative to Arm B on disease-free survival (DFS) in participants who undergo R0 resection surgery
Periodo de tiempo: Up to 24 months after the last participant is randomized

DFS is defined as the time from first post-surgery scan until disease recurrence, using RECIST 1.1, or death due to any cause.

Up to 24 months after the last participant is randomized

Otras medidas de resultado

Medida de resultado
Medida Descripción
Periodo de tiempo
To assess the safety and tolerability of Arm A as compared to Arm B in participants with GC/GEJC
Periodo de tiempo: Up to 24 months after the last participant is randomized

Safety and tolerability will be evaluated in terms of adverse events (AEs)

Up to 24 months after the last participant is randomized

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Patrocinador

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Actual)

9 de octubre de 2026

Finalización primaria (Estimado)

1 de noviembre de 2029

Finalización del estudio (Estimado)

1 de noviembre de 2029

Fechas de registro del estudio

Enviado por primera vez

15 de septiembre de 2026

Primero enviado que cumplió con los criterios de control de calidad

9 de octubre de 2026

Publicado por primera vez (Actual)

16 de octubre de 2026

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

6 de noviembre de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

4 de noviembre de 2026

Última verificación

1 de noviembre de 2026

Más información

Términos relacionados con este estudio

Términos MeSH relevantes adicionales

Otros números de identificación del estudio

  • D907JC00001

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

SÍ

Descripción del plan IPD

IPD will be sharedQualified researchers can request access to anonymized individual patient-level data from AstraZeneca group of companies sponsored clinical trials via the request portal Vivli.org. All requests will be evaluated as per the AZ disclosure commitment: https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.

Yes, indicates that AZ are accepting requests for IPD, but this does not mean all requests will be shared. upon certain conditions.

Marco de tiempo para compartir IPD

AstraZeneca will meet or exceed data availability as per the commitments made to the EFPIA PhRMA Data Sharing Principles. For details of our timelines, please rerefer to our disclosure commitment at https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.

Criterios de acceso compartido de IPD

When a request has been approved AstraZeneca will provide access to the anonymized individual patient-level data via secure research environment Vivli.org. Signed Data Usage Agreement (non-negotiable contract for data accessors) must be in place before accessing requested information.

Tipo de información de apoyo para compartir IPD

  • PROTOCOLO DE ESTUDIO
  • SAVIA

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

No

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

No

producto fabricado y exportado desde los EE. UU.

No

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .