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Using 18F-FAPI PET to Detect Metastatic Disease in Patients That Have Gastric or Esophageal Cancer.

A Phase 3, Multicenter, Prospective Open-Label Study of the Diagnostic Performance of [¹⁸F]FAPI-74 PET/CT for the Detection of Metastatic Disease in Adults With Gastric or Esophageal Cancer

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07217704
Acronym
FAPI-GO
Enrollment
200
Registered
2025-10-16
Start date
2025-11-14
Completion date
2027-08-30
Last updated
2026-09-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Esophageal Cancer, Gastric Cancer (GC), Gastroesophageal Junction

Keywords

FAP, Fibroblast Activation Protein, Fibroblast Activation Protein Inhibitor, FAPI, gastroesophageal cancer, PET

Brief summary

This is a multi-site, open-label, non-randomized, single dose study to assess the clinical utility of \[¹⁸F\]FAPI-74 PET/CT in the detection of metastatic disease in individuals with pathologically confirmed gastric, gastroesophageal junction or esophageal cancer. Following screening, using a standardized administration protocol and dose, participants will undergo \[¹⁸F\]FAPI-74 PET/CT screening. SOC procedures and interventions will be captured during 3 months +/-14 days post injection. The primary objective is to evaluate the sensitivity and specificity of such \[¹⁸F\]FAPI-74 PET/CT using a composite SOT panel. The maximum expected duration of the trial is approximately 24 months from first patient screening to last patient SOC follow up. The participants will be followed-up for safety for 24 to 72 hours after the dose of \[¹⁸F\]FAPI-74 PET/CT.

Interventions

\[18F\]FAPI-74 is a radioactive diagnostic agent indicated for use with Positron Emission Tomography (PET) imaging for the detection of Fibroblast Activation Protein (FAP) positive cancer cells and cancer-associated fibroblasts (CAF) in patients with gastric or esophageal cancers.

Sponsors

SOFIE
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Male and female adults ≥ 18 years. * Participants with confirmed gastric, esophageal or gastroesophageal malignancy undergoing staging evaluation for treatment planning. * Eastern Cooperative Oncology Group (ECOG) performance status ≤2. * Provided signed, written informed consent prior to any study-related procedures. * Participants are required to have a ceCT scan of chest, abdomen and pelvis as per standard clinical practice and practice guidelines either 21 days or less prior to entry or planned within 21 days of \[¹⁸F\]FAPI-74 administration. * For women who are not postmenopausal (two years of amenorrhea) or surgically sterile (absence of ovaries and/or uterus): agreement to use medically accepted, highly effective methods of contraception (e.g., hormonal implants, combined oral contraceptives, vasectomized partner, during the trial intervention period.

Exclusion criteria

* Unequivocal evidence of metastases at the time of enrollment that would preclude surgery as a treatment option. * Known hypersensitivity to \[¹⁸F\]FAPI-74. * Administration of another investigational diagnostic or therapeutic product within 30 days prior to \[¹⁸F\]FAPI-74 administration. * Prior administration of a radiopharmaceutical within 10 half-lives of that product from the time of \[¹⁸F\]FAPI-74 administration. * Previous cancer (except basal cell carcinoma of the skin or in situ carcinoma of the cervix/uterus (participants treated with curative intent and disease free for more than 5 years are permitted). * Hepatic function: T. bili \>1.5X ULN or alk phos, ALT, or AST \>5X ULN * Renal function: GFR \< 30 mL/min * Pregnant or currently breast feeding (a negative pregnancy test is required in women of childbearing potential). * Inability to undergo the PET/CT scanning procedure. * Inflammatory bowel disease (Crohn's disease, ulcerative colitis) * Sarcoidosis * Treatment, including chemotherapy, radiation, immunotherapy or surgery for curative intent of Gastroesophageal cancers

Design outcomes

Primary

MeasureTime frameDescription
Sensitivity and specificity for detection of distant metastatic disease (M1) using a composite SOT as referenceFrom enrollment to the end of treatment after 3 month follow upTo evaluate the diagnostic performance of \[¹⁸F\]FAPI-74 in determining the presence or absence of metastatic disease (M1) in individuals with pathologically confirmed gastric, gastroesophageal junction or esophageal cancers, compared to a composite SOT

Secondary

MeasureTime frameDescription
Incidence and severity of adverse events using CTCAE v5.24-72 hours post-injectionTo assess the safety profile of \[¹⁸F\]FAPI-74.
Sensitivity and specificity for the localized detection of peritoneal metastasesFrom enrollment to the end of treatment after 3 month follow upTo evaluate the diagnostic performance of \[18F\]FAPI-74 PET/CT for detecting peritoneal metastatic disease
Comparative sensitivity and specificity between [18F]FAPI-74 and [¹⁸F]FDG PET/CT for detection of M1 disease using a composite SOT as referenceFrom enrollment to the end of treatment after 3 month follow upTo compare clinical accuracy of \[18F\]FAPI-74 PET/CT imaging to that of \[¹⁸F\]FDG PET/CT, for participants who have had this performed, for detection of metastatic disease.
Cohen's kappa for pairwise evaluation of inter- and intra-reader agreementFrom enrollment to the end of treatment after 3 month follow upTo assess inter-and intra-reader variability in image interpretation of the presence of metastatic disease
Number of participants with treatment-related adverse events as assessed by body temperature changes24-72 hours post-injectionTo assess the safety profile of \[¹⁸F\]FAPI-74
Number of participants with treatment-related adverse events as assessed by blood pressure changes24-72 hours post-injectionTo assess the safety profile of \[¹⁸F\]FAPI-74
Number of participants with treatment-related adverse events as assessed by respiration rateTime Frame: 24-72 hours post-injectionTo assess the safety profile of \[¹⁸F\]FAPI-74
Number of participants with treatment-related adverse events as assessed by pulse rate24-72 hours post-injectionTo assess the safety profile of \[¹⁸F\]FAPI-74

Countries

United States

Contacts

CONTACTAlex Osipova
Alex.osipova@sofie.com1-800-753-5368
CONTACTBridget Adams
bridget.adams@sofie.com1-800-753-5368
STUDY_DIRECTORSherly Mosessian, Ph.D

SOFIE

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 18, 2026