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Undersøgelse af [18F]FAPI-74 PET hos patienter med gastrointestinale kræft (18F-FAPI-74 GI)

9. september 2026 opdateret af: SOFIE

Et fase 2, multicenter, enkeltarm, åbent, ikke-randomiseret undersøgelse af [18F]FAPI-74 PET hos patienter med mave-tarmkræft

Prospective, multi-center, open label, non-randomized clinical trial to assess efficacy of [18F]FAPI-74 to detect FAP expressing cells in patients diagnosed with gastrointestinal cancers, including hepatocellular carcinoma, cholangiocarcinoma, gastric, pancreatic and colorectal cancer. The [18F]FAPI-74 PET scan will be acquired in patients with proven GI cancers after initial staging using institutional standard methods. The PET scan results will be compared to FAP immunohistochemistry (as the primary objective) and histopathology (as the secondary objective) of the biopsied or resected tissues.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

112

Fase

  • Fase 2

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

    • California
      • Los Angeles, California, Forenede Stater, 90095
        • University of California Los Angeles (UCLA) Health
    • Massachusetts
      • Boston, Massachusetts, Forenede Stater, 02114
        • Massachusetts general hospital
    • Michigan
      • Grand Rapids, Michigan, Forenede Stater, 49503
        • BAMF Health
    • Minnesota
      • Rochester, Minnesota, Forenede Stater, 55902
        • Mayo Clinic Rochester
    • New York
      • Lake Success, New York, Forenede Stater, 11042
        • Northwell Health
      • New York, New York, Forenede Stater, 10065
        • Memorial Sloan Kettering Cancer Center (MSKCC)

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Confirmed diagnosis of gastrointestinal (GI) malignancy, including hepatocellular carcinoma, cholangiocarcinoma, gastric, pancreatic and colorectal cancer
  • Available tissue sample obtained through biopsy or to be obtained through scheduled biopsy and/or surgical resection
  • No treatment received between tissue sample taken and [18F]FAPI-74 PET
  • Anatomic imaging (e.g., CT, MRI) obtained within ≤ 28 days of consent
  • Age ≥ 18 years
  • Completed informed consent as determined per the IRB of record

Exclusion Criteria:

  • Pregnant as determined by a pregnancy test as per institutional guidelines for individuals of child-bearing potential
  • Declining to use effective contraceptive methods during the study (for individuals of child-producing potential)
  • Need for emergent surgery that would be delayed by participation
  • Bacterial, viral, or fungal infections requiring systemic therapy, that are expected to impact FAP expression in the opinion of the sponsor or their designee
  • Serious co-morbidities and serious nonmalignant disease (e.g., hydronephrosis, kidney failure, liver failure, systemic or local inflammatory or autoimmune diseases or other conditions) that in the opinion of the investigator, physician of record and/or Sofie could compromise subject safety and/or protocol objectives
  • Known diagnosis of an autoimmune disorder that is expected to impact FAP expression in the opinion of the sponsor or their designee
  • Patients receiving any other investigational agent within the past 28 days
  • Breastfeeding. Note: nursing parents are allowed if the potential participant commits to pumping breast milk and discarding it from injection to ≥ 24 hours from the time of the [18F]FAPI-74 injection
  • Known hypersensitivity to any excipients used in [18F]FAPI-74: trace amounts of sodium acetate, sodium ascorbate, ascorbic acid, ethanol, acetonitrile or AlCl.
  • Renal or liver function impairment* *Defined by liver impairments as AST>3x the upper limit of normal, ALT>3x the upper limit of normal, or bilirubin>1.5x the upper limit of normal. Renal impairment as defined by a creatinine clearance of >1.5x the upper limit of normal utilizing the Cockcroft Gault formula

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Diagnostisk
  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: [18F]FAPI-74 PET/CT

Patients receive [18F]FAPI-74 intravenously followed by PET/CT 60 minutes (+/-10minutes) later

[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 gastrointestinal cancers.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Positive Predictive Value (PPV) of [18F]FAPI-74 PET Imaging Using Immunohistochemistry (IHC)
Tidsramme: Day 1

The positive or negative status according to [18F]FAPI-74 PET imaging was determined based on a prespecified cut-off value for each appropriate test as determined by the clinician. Positivity was evaluated using the following prespecified H-score thresholds: > 50: Overall positive versus negative expression; > 100: Moderate to high expression and > 200: High expression only. The primary efficacy endpoint was the positive predictive value of [18F]FAPI-74 PET imaging, defined as the proportion of PET-positive results that were confirmed positive by IHC. PPV was summarized using proportions along with two-sided 95% asymptotic normal confidence intervals.

Day 1
Sensitivity of [18F]FAPI-74 PET Imaging to Detect FAP-Expressing Cells, Using IHC
Tidsramme: Day 1

Sensitivity was defined as the proportion of participants with IHC confirmed FAP-expressing cells who had a positive [18F]FAPI-74 PET result for the primary lesion. Sensitivity was calculated as A / (A + C), where A represents true positive findings and C represents false negative findings. Higher sensitivity indicates a greater ability of [18F]FAPI-74 PET to detect IHC confirmed FAP expression and a lower likelihood of false negative results, thereby reflecting the effectiveness of the imaging modality relative to the IHC reference standard. Sensitivity was presented overall for all IHC-positive results and separately using stricter IHC cut-off values categorized as: > 50: Overall positive versus negative expression; > 100: Moderate to high expression and > 200: High expression only.

Day 1
Specificity of [18F]FAPI-74 PET Imaging to Detect Absence of FAP-Expressing Cells, Using IHC as Truth Standard
Tidsramme: Day 1

Specificity was defined as the proportion of participants without IHC-confirmed FAP-expressing cells who had a negative [18F]FAPI-74 PET result for the primary lesion. Specificity was calculated by comparing positive and negative [18F]FAPI-74 PET findings with the corresponding IHC results, using a single readable PET image matched to its reference IHC assessment. Specificity was calculated as D / (B + D), where B represents false-positive findings and D represents true-negative findings. PET results were compared with the corresponding IHC reference assessment using a single readable PET image per participant. Specificity was evaluated overall using IHC negativity defined as > 50: Overall positive versus negative expression; > 100: Moderate to high expression and > 200: High expression only.

Day 1

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
PPV of [18F]FAPI-74 PET Images to Detect Cancer Cells Using Histopathology as Truth Standard
Tidsramme: Day 1

Positive Predictive Value (PPV) of [18F]FAPI-74 PET imaging in detecting presence of disease using histopathology as the truth standard. The PPV is defined as the probability that one is indeed positive for an outcome given that they test positive for the outcome and is calculated as: PPV = A/(A + B), where A represents true-positive findings and B represents false-positive findings (PET positive but histopathology negative). PPV was summarized using proportions along with two-sided 95% asymptotic normal confidence intervals.

Day 1
Sensitivity of [18F]FAPI-74 PET Imaging to Detect Cancers Cells, Using Histopathology as Truth Standard
Tidsramme: Day 1

Sensitivity was defined as the proportion of participants with histopathology-confirmed cancers cells who had a positive [18F]FAPI-74 PET result for the primary lesion. Sensitivity was calculated by comparing positive and negative [18F]FAPI-74 PET findings with the corresponding histopathology results, using a single readable PET image matched to its reference histopathology assessment. Sensitivity was calculated as A / (A + C), where A represents true-positive findings and C represents false-negative findings. Sensitivity was summarized using proportions along with two-sided 95% asymptotic normal confidence intervals.

Day 1
Number of Participants Reporting Treatment Emergent Adverse Events (TEAEs) and Serious TEAEs
Tidsramme: From study intervention administration (Day 1) to 72 hours post-injection

An adverse event (AE) is any untoward medical occurrence in a participant, which does not necessarily have a causal relationship with the trial intervention.

A TEAE is defined as any untoward medical occurrence that begins or worsens in intensity or frequency after the initiation of a treatment (e.g., drug, device, or procedure) in a clinical study.

A serious TEAE is defined as any untoward medical occurrence that at any dose: results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization.

From study intervention administration (Day 1) to 72 hours post-injection

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

28. april 2023

Primær færdiggørelse (Faktiske)

30. juni 2025

Studieafslutning (Faktiske)

30. juni 2025

Datoer for studieregistrering

Først indsendt

29. november 2022

Først indsendt, der opfyldte QC-kriterier

29. november 2022

Først opslået (Faktiske)

8. december 2022

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

1. oktober 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

9. september 2026

Sidst verificeret

1. september 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • 18FFAPI-2023P2

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

UBESLUTET

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ja

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

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