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

2026年6月1日 更新者: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.

調査の概要

研究の種類

介入

入学 (推定)

90

段階

  • フェーズ2

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究連絡先

研究場所

      • Copenhagen、デンマーク、2100
        • 募集
        • Rigshospitalet
        • コンタクト:
        • コンタクト:
          • Barbara M Fischer, professor, Professor, MD, Ph.D.
        • 副調査官:
          • Marie M K Stolberg, MD

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

  • 大人
  • 高齢者

健康ボランティアの受け入れ

いいえ

説明

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

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

  • 主な目的:診断
  • 割り当て:なし
  • 介入モデル:単一グループの割り当て
  • マスキング:なし(オープンラベル)

武器と介入

参加者グループ / アーム
介入・治療
実験的:Cancer patients
PET/CT scan with the tracer [68Ga]Ga-FAPI-46

この研究は何を測定していますか?

主要な結果の測定

結果測定
メジャーの説明
時間枠
Sensitivity of [68Ga]Ga-FAPI-46 Total Body PET/CT
時間枠: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

二次結果の測定

結果測定
メジャーの説明
時間枠
Accuracy measurements of [68Ga]Ga-FAPI-46 Total Body PET/CT
時間枠: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.
時間枠: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.
時間枠: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

その他の成果指標

結果測定
メジャーの説明
時間枠
Patients' experience of a [68Ga]Ga-FAPI-46 Total Body PET/CT compared to standard imaging modalities.
時間枠: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)
時間枠: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

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (実際)

2024年1月16日

一次修了 (推定)

2027年1月1日

研究の完了 (推定)

2027年1月1日

試験登録日

最初に提出

2025年9月10日

QC基準を満たした最初の提出物

2026年6月1日

最初の投稿 (実際)

2026年6月5日

学習記録の更新

投稿された最後の更新 (実際)

2026年6月5日

QC基準を満たした最後の更新が送信されました

2026年6月1日

最終確認日

2026年6月1日

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