[18F]FTT Positron Emission Tomography/Computed Tomography to Predict Treatment Response in Patients Scheduled to Receive Gemcitabine, Cisplatin, and Durvalumab for Newly Diagnosed Cholangiocarcinoma
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
Toestand
Conditie
Conditie
Interventie / Behandeling
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
Studietype
Inschrijving (Geschat)
Inschrijving
Fase
Fase
- Fase 2
Contacten en locaties
Studiecontact
Studiecontact
- Naam: Angela Castellanos Rodriguez, MD, MSc
- Telefoonnummer: 206-606-6777
- E-mail: acastell@uw.edu
Studie Locaties
-
-
Washington
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Seattle, Washington, Verenigde Staten, 98109
- Werving
- Fred Hutch/University of Washington Cancer Consortium
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Contact:
- Angela Castellanos Rodriguez, MD, MSc
- Telefoonnummer: 206-606-6777
- E-mail: acastell@uw.edu
-
Hoofdonderzoeker:
- Angela Castellanos Rodriguez, MD, MSc
-
-
Deelname Criteria
Geschiktheidscriteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
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
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Diagnostisch
- Toewijzing: NVT
- Interventioneel model: Opdracht voor een enkele groep
- Masker: Geen (open label)
Aantal wapens
Wapens en interventies
Deelnemersgroep / ArmDeelnemersgroep / Arm |
Interventie / BehandelingInterventie / 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. |
Undergo MRI
Andere namen:
Undergo PET/CT
Andere namen:
Undergo PET/CT and/or CT
Andere namen:
Given IV
Andere namen:
|
Wat meet het onderzoek?
Primaire uitkomstmaten
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
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
Sponsor
Sponsor
Onderzoekers
Onderzoekers
- Hoofdonderzoeker: Angela Castellanos Rodriguez, MD, MSc, Fred Hutch/University of Washington Cancer Consortium
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Studie start
Primaire voltooiing (Geschat)
Primaire voltooiing
Studie voltooiing (Geschat)
Studie voltooiing
Studieregistratiedata
Eerst ingediend
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Eerst geplaatst
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update geplaatst
Laatste update ingediend die voldeed aan QC-criteria
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
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?
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
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