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BEFAST Study, [68Ga]Ga-FAPI Total Body PET/CT for Better and Faster Imaging in Cancer (BEFAST)

1 de junio de 2026 actualizado por: Barbara Malene Fischer

[68Ga]Ga-FAPI Total Body PET/CT for Improving Diagnostic Sensitivity and Preoperative Staging in Gastroesophageal Cancer and Pancreatic Cancer

The goal of this clinical trial is to learn if [68Ga]Ga-FAPI-46 Total Body PET/CT can diagnose patients suffering from gastroesophageal cancer and pancreatic cancer. The investigators hope that [68Ga]Ga-FAPI-46 Total Body PET/CT can improve staging and treatment evaluation for these patient groups.

The main questions the trial aims to answer are:

  • Is [68Ga]Ga-FAPI-46 Total Body PET/CT better at diagnosing metastatic disease in the abdomen compared other imaging modalities?
  • Can [68Ga]Ga-FAPI-46 Total Body PET/CT produce accurate images in less than 30 min?

Researchers will examine three different patient groups:

Group A) patients with pancreatic cancer, who are referred to surgery. Group B1) patients with gastroesophageal cancer, who are referred to diagnostic surgery (laparoscopy).

Group B2) a subgroup of gastroesophageal cancer patients, with a specific subtype cancer (signet ring cell carcinoma or poorly cohesive carcinoma), who are referred to oncological treatment.

Participants will undergo:

  • One [68Ga]Ga-FAPI Total Body PET/CT before surgery (Group A), or before laparoscopy (group B1), or before oncological treatment (Group B2).
  • Participants in group B2 will also undergo a second [68Ga]Ga-FAPI-46 Total Body PET/CT during treatment with chemotherapy.
  • All participants will fill out one questionnaire.
  • Researchers will follow the patients after the scans for 1 year.

Descripción general del estudio

Estado

Reclutamiento

Intervención / Tratamiento

Tipo de estudio

Intervencionista

Inscripción (Estimado)

90

Fase

  • Fase 2

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

      • Copenhagen, Dinamarca, 2100
        • Reclutamiento
        • Rigshospitalet
        • Contacto:
        • Contacto:
          • Barbara M Fischer, professor, Professor, MD, Ph.D.
        • Sub-Investigador:
          • Marie M K Stolberg, MD

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 for group A

  1. Male or female, over 18 years old
  2. Patients with suspected pancreatic cancer based on morphological findings on standard imaging
  3. CT or MRI or [18F]FDG PET/CT evaluated on MDT with no initial sign of distant metastases
  4. Subjects must have been considered suitable for curative surgery at the time of the referral
  5. Subjects must be able to read and understand the patient information in Danish to give informed consent

Inclusion criteria for group B1

  1. Male or female over 18 years old
  2. Histological verified carcinoma from the lower esophagus, GEJ, or stomach
  3. Subjects must be considered operable and resectable at the time of referral for MDT
  4. Subjects must be able to read and understand the patient information in Danish to give informed consent

Inclusion criteria for group B2

  1. Male or female over 18 years old
  2. Histological verified SRCC or PCC from the lower esophagus, GEJ, or stomach
  3. Subjects with localized disease assigned to perioperative chemotherapy or subjects with metastatic disease assigned to palliative systemic treatment.
  4. Subjects must be able to read and understand the patient information in Danish to give informed consent

Exclusion Criteria:

  1. Pregnancy or lactation
  2. Weight more than the maximum limit of a PET/CT-scanner bed (140 kg)
  3. History of allergic reaction due to compounds similar to the chemical composition of [68Ga]Ga-FAPI-46

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: Diagnóstico
  • Asignación: N / A
  • Modelo Intervencionista: Asignación de un solo grupo
  • Enmascaramiento: Ninguno (etiqueta abierta)

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Cancer patients
PET/CT scan with the tracer [68Ga]Ga-FAPI-46

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Sensitivity of [68Ga]Ga-FAPI-46 Total Body PET/CT
Periodo de tiempo: From the time of scan to the end of follow up at 1 year

Sensitivity of lesions suspicious of malignancy of [68Ga]Ga-FAPI-46 Total Body PET/CT within 30 min of injection of the tracer compared with the sensitivity of current standard imaging modalities ([18F]FDG PET/CT, CT, MRI).

Sensitivity will be measured as the proportion of true positive malignant findings on [68Ga]Ga-FAPI-46 Total Body PET/CT within 30 mins of injection of the tracer. This will be done, by comparing the lesions suspicious of malignancy found on [68Ga]Ga-FAPI-46 PET/CT, and standard imaging with the results from the curative surgery and/or a composed reference standard, which consist of all available imaging, 6 months follow up and blinded expert opinion.

From the time of scan to the end of follow up at 1 year

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Accuracy measurements of [68Ga]Ga-FAPI-46 Total Body PET/CT
Periodo de tiempo: From the time of scan to the end of follow up at 1 year

Sensitivity of lesions suspicious of malignancy of [68Ga]Ga-FAPI-46 Total Body PET/CT after 60 min of injection of the tracer, as well as accuracy, specificity, positive predictive value (PPV) and negative predictive value (NPV).

Sensitivity (the proportion of true positive findings), specificity (the proportion of true negative findings), PPV (the proportion of positive findings, which are true positives) and NPV (the proportion of negative findings which are true negatives will be measured by comparing the lesions suspicious of malignancy found on [68Ga]Ga-FAPI-46 PET/CT and standard imaging with the results from the curative surgery and/or a composed reference standard, which is composed of all available imaging, 6 months follow up and blinded expert opinion.

From the time of scan to the end of follow up at 1 year
Estimated potential impact/change in patient management.
Periodo de tiempo: From the time of scan to the end of follow up at 1 year
From the time of scan to the end of follow up at 1 year
Description of FAPI-uptake from lesions suspicious of malignancy.
Periodo de tiempo: From the time of scan to the end of follow up at 1 year
FAPI-uptake in lesions suspicious of malignancy will be described and quantified with standardized uptake values (SUV, e.g. SUVmax, SUVmean). SUV is a ratio of the concentration of the tracer in a region of interest on the scan and the concentration of tracer injected in the participant.
From the time of scan to the end of follow up at 1 year

Otras medidas de resultado

Medida de resultado
Medida Descripción
Periodo de tiempo
Patients' experience of a [68Ga]Ga-FAPI-46 Total Body PET/CT compared to standard imaging modalities.
Periodo de tiempo: Immediately after completion of the scan (single time point)
Patients will be given a small questionnaire immediately after the [68Ga]Ga-FAPI-46 TB PET/CT, to fill out by his or herself (please refer to the appendix 2 in the protocol). The questionnaire is inspired by a questionnaire from a previous study exploring patient experiences during an [18F]FDG PET/CT and with inspiration from local and national questionnaires on patient experience during visits to radiology departments provided by the Capital Region of Denmark. The questionnaire includes 6 questions, 2 regarding patient information, 3 questions regarding stress and anxiety during the exmination and 1 question regarding the expectations to the scan. The different questions is rated on a descriptive scale (Very Much, Quite a lot, Some, Not at all).
Immediately after completion of the scan (single time point)
Uptake of [68Ga]Ga-FAPI-46 from lesions suspicious of malignancy wil be correlated with progression free survival (PFS)
Periodo de tiempo: From the time of scan to the end of follow up at 1 year
FAPI-uptake (measured as Standardised uptake value [SUV], which is a ratio of the concentration of the tracer in a region of interest on the scan and the concentration of tracer injected in the patient) in lesions suspicious of malignancy will be correlated with PFS after 1 year follow-up. PFS is defined as the time from the [68Ga]Ga-FAPI-46 TB PET/CT to progression of cancer disease, recurrence of cancer disease, or death of any cause.
From the time of scan to the end of follow up at 1 year

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 (Actual)

16 de enero de 2024

Finalización primaria (Estimado)

1 de enero de 2027

Finalización del estudio (Estimado)

1 de enero de 2027

Fechas de registro del estudio

Enviado por primera vez

10 de septiembre de 2025

Primero enviado que cumplió con los criterios de control de calidad

1 de junio de 2026

Publicado por primera vez (Actual)

5 de junio de 2026

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

5 de junio de 2026

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

1 de junio de 2026

Última verificación

1 de junio de 2026

Más información

Términos relacionados con este estudio

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

NO

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

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