Deze pagina is automatisch vertaald en de nauwkeurigheid van de vertaling kan niet worden gegarandeerd. Raadpleeg de Engelse versie voor een brontekst.

[18F]FTT Positron Emission Tomography/Computed Tomography to Predict Treatment Response in Patients Scheduled to Receive Gemcitabine, Cisplatin, and Durvalumab for Newly Diagnosed Cholangiocarcinoma

12 augustus 2026 bijgewerkt door: University of Washington

Imaging PARP Expression in Cholangiocarcinoma

This phase II trial studies whether [18F]FTT can be used with positron emission tomography (PET)/computed tomography (CT) imaging to predict treatment response in patients scheduled to receive gemcitabine, cisplatin, and durvalumab (GCD) for newly diagnosed cholangiocarcinoma. PET/CT is an imaging technique that utilizes PET and CT in a single machine. PET is an established imaging technique that utilizes small amounts of radioactivity attached to very minimal amounts of tracer, in the case of this trial, [18F]FTT, to make detailed, computerized pictures of areas inside the body where the tracer is used. CT utilizes x-rays that traverse body from the outside. CT images provide an exact outline of organs and potential inflammatory tissue where it occurs in the patient's body. [18F]FTT targets and binds to poly (ADP-ribose) polymerase 1 (PARP1). Some cholangiocarcinoma tumor cells may express PARP1 which may make it easier to see them on PET/CT. Research has shown that tumor cells that express PARP1 may not respond well to GCD treatment. Researchers hope that by using [18F]FTT with PET/CT imaging they will be able to detect which patients have tumor cells that express PARP1, which may help predict treatment response in patients scheduled to receive GCD for newly diagnosed cholangiocarcinoma.

Studie Overzicht

Toestand

Nog niet aan het werven

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

OUTLINE:

Patients receive [18F]FTT intravenously (IV) and 60, 90, or 150 minutes later undergo PET/CT within 30 days prior to day 1 cycle 1 of GCD and 12 weeks after starting GCD in the absence of unacceptable toxicity. Patients also undergo CT and/or magnetic resonance imaging (MRI) throughout the study.

After completion of study intervention, patients are followed up at week 24 and then up to 6 months after completing GCD treatment.

Studietype

Ingrijpend

Inschrijving (Geschat)

22

Fase

  • Fase 2

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studiecontact

  • Naam: Angela Castellanos Rodriguez, MD, MSc
  • Telefoonnummer: 206-606-6777
  • E-mail: acastell@uw.edu

Studie Locaties

  • Verenigde Staten
    • Washington
      • Seattle, Washington, Verenigde Staten, 98109
        • Fred Hutch/University of Washington Cancer Consortium
        • Contact:
          • Angela Castellanos Rodriguez, MD, MSc
          • Telefoonnummer: 206-606-6777
          • E-mail: acastell@uw.edu
        • Hoofdonderzoeker:
          • Angela Castellanos Rodriguez, MD, MSc

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

  • Volwassen
  • Oudere volwassene

Accepteert gezonde vrijwilligers

Nee

Beschrijving

Inclusion Criteria:

  • Patient must have histologically confirmed cholangiocarcinoma
  • Patient must be newly diagnosed and have not yet been treated
  • Patient planned to receive GCD per standard-of-care
  • Patient must have evaluable disease or at least one measurable lesion that can be assessed at baseline by CT (or MRI) per RECIST 1.1
  • Age ≥ 18 years
  • For women of childbearing potential, a negative serum pregnancy test is required within 7 days prior to [18F]FTT PET imaging
  • Men and women of reproductive potential need to agree to employ acceptable forms of contraception throughout their participation in the study that meet requirements for GCD treatment per standard of care
  • Patient is willing and able to comply with the protocol for the duration of the study including undergoing all study procedures
  • Ability to understand and the willingness to sign a written informed consent document. Informed consent must be provided prior to any study specific procedures

Exclusion Criteria:

  • Pregnant or breastfeeding women
  • Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Diagnostisch
  • Toewijzing: NVT
  • Interventioneel model: Opdracht voor een enkele groep
  • Masker: Geen (open label)

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: Diagnostic ([18F]FTT PET/CT)
Patients receive [18F]FTT IV and 60, 90, or 150 minutes later undergo PET/CT within 30 days prior to day 1 cycle 1 of GCD and 12 weeks after starting GCD in the absence of unacceptable toxicity. Patients also undergo CT and/or MRI throughout the study.
Procedure: Magnetische resonantie beeldvorming
MRI ondergaan
Andere namen:
  • MRI
  • Magnetische resonantie
  • Magnetic Resonance Imaging-scan
  • Medische beeldvorming, magnetische resonantie / nucleaire magnetische resonantie
  • DHR
  • MR-beeldvorming
  • MRI scan
  • NMR-beeldvorming
  • NMRI
  • Nucleaire magnetische resonantie beeldvorming
  • Magnetische resonantiebeeldvorming (MRI)
  • sMRI
  • Magnetische resonantiebeeldvorming (procedure)
  • MRI's
  • Structurele MRI
Procedure: Positronemissietomografie
PET/CT ondergaan
Andere namen:
  • Medische beeldvorming, positronemissietomografie
  • HUISDIER
  • PET-scan
  • Positron Emissie Tomografie Scan
  • Positron-emissietomografie
  • PT
  • Positronemissietomografie (procedure)
Straling: Fluor F 18 Fluorthanatrace
IV gegeven
Andere namen:
  • [18F]Fluor Thanatrace
  • [18F]FTT
  • FLUORTHANATRACE F-18
Procedure: Computertomografie
Onderga PET/CT en/of CT
Andere namen:
  • CT
  • KAT
  • CT-scan
  • Axiale computertomografie
  • Computergestuurde axiale tomografie
  • Computergestuurde tomografie
  • tomografie
  • Geautomatiseerde axiale tomografie (procedure)
  • Computertomografie (CT)-scan
  • Diagnostische kattencan
  • Diagnostisch CAT -scanservice type

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Relationship between standardized uptake value maximum (SUVmax) and overall response rate
Tijdsspanne: At baseline and 24 weeks after starting gemcitabine, cisplatin, and durvalumab (GCD)
Baseline SUVmax will be extracted from a region of interest (ROI) placed on the tumor lesion of interest using a 40% threshold. Will assess overall response rate at 24 ± 2 weeks after starting GCD by using Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 criteria. Response will be analyzed as a binary outcome. Differences in baseline SUVmax between responders and non-responders will be evaluated using the Wilcoxon rank-sum test. Logistic regression models will be used to estimate the direction and magnitude of association, with response as the dependent variable and SUVmax as the predictor. Odds ratios and 95% confidence intervals will be reported. Analysis will focus on estimation of effect sizes and the direction and magnitude of associations of the primary endpoints, overall response rate and SUVmax of the most avid lesion, rather than formal hypothesis testing alone. Boxplots will be used to visualize the distribution of SUVmax by responders group.
At baseline and 24 weeks after starting gemcitabine, cisplatin, and durvalumab (GCD)

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Relationship between standardized uptake value mean (SUVmean) and overall response rate
Tijdsspanne: At baseline and 24 weeks after starting GCD
Will measure baseline SUVmean from an ROI placed on the tumor lesion of interest using a 40% threshold. Treatment response will be defined by RECIST 1.1 criteria at 24 ± 2 weeks following GCD treatment. Association between baseline SUVmean and treatment response will be evaluated using Wilcoxon rank-sum test. Logistic regression will be used to quantify the magnitude and direction of association between baseline SUVmean and response. Results will be summarized using odds ratios with 95% confidence intervals, and boxplot to illustrate the distribution of baseline SUVmean between responders and non-responders.
At baseline and 24 weeks after starting GCD
Change in SUVmax and response
Tijdsspanne: Baseline to 12 weeks after starting GCD
Will calculate the change of SUVmax from baseline to 12 ± 2 weeks after starting GCD. Due to the limited sample size, will use the nonparametric method Wilcoxon Rank Sum test to evaluate the difference in change between responders and non-responders. Effect sizes will be summarized using the median difference (Hodges-Lehmann estimator) in change between groups with 95% confidence intervals.
Baseline to 12 weeks after starting GCD
Change in SUVmean and response
Tijdsspanne: Baseline to 12 weeks after starting GCD
Will calculate the change of SUVmean from baseline to 12 ± 2 weeks after starting GCD. Due to the limited sample size, will use the nonparametric method Wilcoxon Rank Sum test to evaluate the difference in change between responders and non-responders. Effect sizes will be summarized using the median difference (Hodges-Lehmann estimator) in change between groups with 95% confidence intervals.
Baseline to 12 weeks after starting GCD

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

University of Washington

Onderzoekers

  • Hoofdonderzoeker: Angela Castellanos Rodriguez, MD, MSc, Fred Hutch/University of Washington Cancer Consortium

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Geschat)

1 november 2026

Primaire voltooiing (Geschat)

1 juli 2028

Studie voltooiing (Geschat)

31 december 2028

Studieregistratiedata

Eerst ingediend

22 juni 2026

Eerst ingediend dat voldeed aan de QC-criteria

22 juni 2026

Eerst geplaatst (Werkelijk)

29 juni 2026

Updates van studierecords

Laatste update geplaatst (Werkelijk)

14 augustus 2026

Laatste update ingediend die voldeed aan QC-criteria

12 augustus 2026

Laatst geverifieerd

1 juni 2026

Meer informatie

Termen gerelateerd aan deze studie

Aanvullende relevante MeSH-voorwaarden

Andere studie-ID-nummers

  • RG1126474
  • NCI-2026-03509 (Register-ID: CTRP (Clinical Trial Reporting Program))
  • FHIRB0021301 (Andere identificatie: Fred Hutch/University of Washington Cancer Consortium)

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

NEE

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Ja

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

Abonneren