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Efficacy and Safety of BG-C9074 With Bevacizumab Compared With Bevacizumab in Adults With Ovarian, Fallopian Tube, or Primary Peritoneal Cancers

3 de septiembre de 2026 actualizado por: BeOne Medicines

A Phase 3, Open-label, Multicenter, Randomized Study of BG-C9074 With Bevacizumab Versus Bevacizumab as First-line Maintenance Therapy for Patients With Epithelial Ovarian, Fallopian Tube, or Primary Peritoneal Cancers Who Have Not Progressed After First-line Platinum-based Chemotherapy Plus Bevacizumab (Starstone-Ovarian 301/GOG-3144/ENGOT-ov108/APGOT-OV29)

The purpose of this study is to evaluate the safety and efficacy of BG-C9074 with bevacizumab (Arm A) versus bevacizumab monotherapy (Arm B) in adults with epithelial ovarian, fallopian tube, or primary peritoneal cancers who have not progressed after firstline platinum-based chemotherapy plus bevacizumab.

Descripción general del estudio

Descripción detallada

Ovarian cancer is a disease where abnormal cells in the ovaries or fallopian tubes grow out of control and form tumors. Common early signs include belly bloating, pelvic or back pain, feeling full quickly when eating, and frequent urination.

BG-C9074 is a targeted cancer medicine called an antibody-drug conjugate (ADC). ADC consists of an antibody linked to a drug that can kill cancer cells. The antibody part of BG-C9074 specifically attaches to a protein called B7-H4 that is found on the surface of cancer cells. After it attaches to B7-H4, BG-C9074 enters the cancer cell where the drug causes DNA damage and cell death. Bevacizumab is an approved medicine used to treat these cancers along with chemotherapy. It works by cutting off the blood supply that helps the tumor grow, which may help keep the cancer under better control.

The purpose of this study is to test if BG-C9074 is safe and effective in women with advanced epithelial ovarian, fallopian tube or primary peritoneal cancer when it is given in combination with bevacizumab as a first-line maintenance treatment.

This study has 2 treatment groups. Participants will be randomly assigned (by chance, like flipping a coin) to receive one of the treatments listed below:

  • Arm A: BG-C9074 + Bevacizumab
  • Arm B: Bevacizumab

This study will enroll approximately 600 participants. The overall time to participate in this study may be up to 5 years. Participants will make regular visits to the clinic for treatment, health checks, blood tests, and for tumor and imaging tests.

Tipo de estudio

Intervencionista

Inscripción (Estimado)

600

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

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

  • Adulto
  • Adulto Mayor

Acepta Voluntarios Saludables

No

Descripción

Inclusion Criteria:

  1. Able to provide a signed and dated written informed consent prior to any study-specific procedures, sampling, or data collection.
  2. Eastern Cooperative Oncology Group (ECOG) Performance Status ≤ 1.
  3. Participants must have a histologically confirmed diagnosis of epithelial high-grade ovarian, fallopian tube or primary peritoneal carcinoma (serous, endometrioid, or clear cell).
  4. Participants are newly diagnosed International Federation of Gynecology and Obstetrics (FIGO) stage III or IV and have received primary debulking surgery or interval debulking surgery.
  5. Participants must have adequate organ function.
  6. Women of childbearing potential must be willing to use a highly effective method of birth control and agree not to donate eggs (ova, oocytes) or freeze/store eggs for the duration of the study and for ≥ 7 months after the last dose of study treatment.

Exclusion Criteria:

  1. Participants have ovarian, fallopian tube, or peritoneal cancer of nonepithelial origin.
  2. Participants have either a germline or somatic BReast CAncer gene (BRCA) mutation as per local test.
  3. Participants who will receive poly-adenosine diphosphate ribose polymerase (PARP) inhibitor as maintenance therapy per standard of care and investigator discretion.
  4. Participants have a history of allergic reactions or hypersensitivity to the active ingredients and excipients of the drug products and other monoclonal antibodies.
  5. Participants had previous transient ischemic attack, cerebrovascular accident, or subarachnoid hemorrhage within 6 months prior to randomization
  6. Participants have evidence of bleeding diathesis or significant coagulopathy (in the absence of anticoagulation therapy).

Note: Other protocol defined Inclusion/Exclusion criteria may apply.

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: Ninguno (etiqueta abierta)

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Arm A: BG-C9074 + Bevacizumab
BG-C9074 will be administered first, followed by bevacizumab.
Administered by Intravenous infusion
Administered by Intravenous infusion
Comparador activo: Arm B: Bevacizumab
Bevacizumab will be administered alone.
Administered by Intravenous infusion

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Progression-Free survival (PFS) assessed by Blinded Independent Central Review (BICR)
Periodo de tiempo: Up to 5 years
PFS is defined as the time from randomization to the date of disease progression by BICR based on Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 or death, whichever occurs first.
Up to 5 years

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Overall Survival (OS)
Periodo de tiempo: Up to 5 years
OS is defined as the time from randomization to death due to any reason.
Up to 5 years
PFS, as Assessed by Investigator
Periodo de tiempo: Up to 5 years
PFS is defined as time from randomization to the date of disease progression by Investigator based on RECIST v1.1 or death, whichever occurs first.
Up to 5 years
PFS2, as Assessed by Investigator
Periodo de tiempo: Up to 5 years
PFS2, as assessed by investigator, is defined as time from randomization to the documented disease progression on first subsequent systemic therapy by Investigator or death due to any cause, whichever occurs first.
Up to 5 years
Time to Next Treatment
Periodo de tiempo: Up to 5 years
Time to next treatment is defined as the time from randomization to the start of the first subsequent anticancer therapy after discontinuation of randomized treatment, or death due to any cause.
Up to 5 years
Number of Participants with Treatment-Emergent Adverse Events, Treatment-Related Adverse Events, and Serious Adverse Events
Periodo de tiempo: From first dose of study drug up to 30 days after last dose, up to 24 months

An adverse event is defined as any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of study treatment, whether considered related to study treatment or not.

A serious adverse event is any untoward medical occurrence that, at any dose, meets one or more of the criteria listed in the view of either the investigator or the Sponsor:

  1. Results in death
  2. Is life-threatening
  3. Requires inpatient hospitalization or prolongation of existing hospitalization
  4. Results in persistent or significant disability/incapacity
  5. Is a congenital anomaly/birth defect
From first dose of study drug up to 30 days after last dose, up to 24 months
Change from Baseline in European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ) - F17 Global Health Status/Quality of Life (GHS/QoL), Role Functioning, and Physical Functioning Domain Scores
Periodo de tiempo: Baseline and up to approximately 2 years
The EORTC QLQ-F17 is a 17-item questionnaire that covers GHS/QoL and five functional scales (Physical, Role, Emotional, Cognitive, and Social). All items are scored on a 4-point - Likert scale (1 = "Not at all"; 4 = "Very much"), except the two items of the GHS/QoL-scale that are scored on a 7-point scale (1 = "Very poor"; 7 = "Excellent"). Scores are averaged and transformed to a 0 to 100 scale. Higher scores in GHS/QoL and functional scales indicate better health-related quality of life (HRQoL).
Baseline and up to approximately 2 years
Change from Baseline in EORTC QLQ -Ovarian Cancer Module (OV28) Abdominal/GI Symptoms Domain Score
Periodo de tiempo: Baseline and up to approximately 2 years
The EORTC QLQ-OV28 includes a 28-item questionnaire for evaluating ovarian cancer-specific symptoms and concerns in participants of cancer clinical studies. These include items that assess symptoms in the abdominal/gastrointestinal domain. Scores are averaged and transformed to a 0 to 100 scale; higher scores indicate a greater symptom burden, while lower scores reflect fewer symptoms.
Baseline and up to approximately 2 years
Time to Deterioration (TTD) of GHS/QoL, Role Functioning, and Physical Functioning Domain Scores as Measured via EORTC QLQ - F17
Periodo de tiempo: Up to 5 years
TTD of GHS/QoL is defined as the time from the date of randomization to the first confirmed clinically meaningful deterioration on the abdominal/gastrointestinal symptom domain of the EORTC QLQ-F17.
Up to 5 years
Time to deterioration (TTD) of Abdominal/GI Symptoms as Measured via EORTC QLQ - OV28
Periodo de tiempo: Up to 5 years
TTD of Abdominal/GI Symptoms is defined as the time from the date of randomization to the first confirmed clinically meaningful deterioration on the abdominal/gastrointestinal symptom domain of the EORTC QLQ-OV28.
Up to 5 years

Colaboradores e Investigadores

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

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 (Estimado)

1 de octubre de 2026

Finalización primaria (Estimado)

30 de noviembre de 2029

Finalización del estudio (Estimado)

31 de marzo de 2033

Fechas de registro del estudio

Enviado por primera vez

3 de septiembre de 2026

Primero enviado que cumplió con los criterios de control de calidad

3 de septiembre de 2026

Publicado por primera vez (Actual)

10 de septiembre de 2026

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

10 de septiembre de 2026

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

3 de septiembre de 2026

Última verificación

1 de septiembre de 2026

Más información

Términos relacionados con este estudio

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

SÍ

Descripción del plan IPD

BeOne shares data on completed studies responsibly and provides qualified scientific and medical researchers access to data and supporting documentation for clinical trials in dossiers for medicines and indications after submission and approval in the United States, China, and Europe. Clinical trials supporting subsequent local approvals, new indications, or combination products are eligible for sharing once corresponding regulatory approvals are achieved.

BeOne shares data only when permitted by applicable data privacy and security laws and regulations, when it is feasible to do so without compromising the privacy of study participants, and other considerations.

Qualified researchers with appropriate competencies who are engaged in novel scientific research may submit a request for participant-level data with a research proposal for BeOne review. Research teams must include a biostatistician and sign a Data Sharing Agreement prior to receiving access to clinical trial data.

Marco de tiempo para compartir IPD

See plan description

Criterios de acceso compartido de IPD

See plan description

Tipo de información de apoyo para compartir IPD

  • PROTOCOLO DE ESTUDIO
  • SAVIA
  • RSC

Información sobre medicamentos y dispositivos, documentos del estudio

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

Sí

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

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