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Carbon-11 Acetate and Fluorine F 18 Sodium Fluoride PET as a Biomarker of Treatment Response in Patients With Hormone Resistant Metastatic Prostate Cancer

29. august 2016 opdateret af: University of Washington

PET Imaging as a Biomarker of Systemic Treatment Response for Men With Metastatic Castration-Resistant Prostate Cancer

This clinical trial studies carbon-11 acetate and fluorine F 18 sodium fluoride positron emission tomography (PET) as a biomarker of treatment response in patients with prostate cancer that does not respond to treatment with hormones and has spread to other parts of the body. Carbon-11 acetate and fluorine F 18 sodium fluoride are radioactive drugs that may be useful in evaluating prostate cancer activity in response to treatment. Comparing results of diagnostic procedures such as carbon-11 acetate and fluorine F 18 sodium fluoride PET done before and after therapy may help doctors predict a patient's response to treatment and help plan the best treatment.

Studieoversigt

Status

Trukket tilbage

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

PRIMARY OBJECTIVES:

I. Demonstrate that carbon-11 acetate (11C-acetate) and 18F-fluoride (fluorine F 18 sodium fluoride) PET scans change as a result of treatment for men with metastatic castration-resistant prostate cancer by comparison of pre-treatment and 6-12 week post-treatment images (standardized uptake value [SUV], influx constant [Ki], and rate constant [K1]) with clinical response measures.

SECONDARY OBJECTIVES:

I. Compare results from 11C-acetate and 18F-fluoride PET scanning with the patient's clinical bone scan and determine which predicts clinical response better.

II. Compare changes in 11C-acetate and 18F-fluoride PET with changes in prostate-specific antigen (PSA) level.

III. Compare changes in 11C-acetate and 18F-fluoride PET with changes in urinary N-telopeptide and bone alkaline phosphatase.

IV. Determine if either baseline uptake or change in uptake for 11C-acetate and/or 18F-fluoride PET is correlated with progression-free survival by Prostate Cancer Working Group 2 (PCWG2) criteria (Scher, 2008).

V. Determine if either baseline uptake or change in uptake by 11C-acetate and/or 18F-fluoride PET is correlated with skeletal-related events (SREs) defined as radiographic pathologic fracture, need for radiation to bone, need for surgery, spinal cord compression or malignant hypercalcemia.

VI. Percentage of patients that experience adverse events by Common Terminology Criteria for Adverse Events, version 4.0.

VII. For patients who have tissue/blood biomarkers obtained for other indications, directly compare baseline uptake and change in uptake by 11C-acetate and/or 18F-fluoride PET with those biomarkers.

OUTLINE:

Patients receive carbon-11 acetate intravenously (IV) and fluorine F 18 sodium fluoride IV over 1 minute and undergo PET at baseline and at 6-12 weeks after systemic therapy starts.

After completion of treatment, patients are followed up every 3 months for up to 5 years.

Undersøgelsestype

Interventionel

Fase

  • Ikke anvendelig

Kontakter og lokationer

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

Studiesteder

  • Forenede Stater
    • Washington
      • Seattle, Washington, Forenede Stater, 98109
        • Fred Hutchinson Cancer Research Center/University of Washington Cancer Consortium

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

Han

Beskrivelse

Inclusion Criteria:

  • Patients preparing to receive systemic therapy to treat metastatic castration-resistant prostate cancer
  • At the time of enrollment, patients must demonstrate evidence of castration-resistant prostate cancer with a documented castrate level of serum total testosterone (< 50 ng/dL) while on continuous androgen deprivation therapy
  • Be informed of the investigational nature of this study and provide written informed consent in accordance with institutional and federal guidelines prior to study-specific screening procedures
  • Be willing and able to comply with scheduled visits and other trial procedures
  • Presence of at least one measurable or detectable metastasis as defined by bone scintigraphy, computed tomography (CT) scan appearance (magnetic resonance imaging [MRI] if indicated), or plain x-ray appearance

Exclusion Criteria:

  • Any condition that would alter the patient's mental status, prohibiting the basic understanding and/or authorization of informed consent
  • A serious underlying medical condition that would otherwise impair the patient's ability to receive treatment and imaging studies
  • Expected lifespan of 12 weeks or less
  • Extremely poor intravenous access, prohibiting the placement of a peripheral IV line for injection of radiotracer
  • Radiation treatment to bone less than 4 weeks from the first PET scan
  • Radiopharmaceutical treatment to bone less than 4 weeks from first PET scan
  • Treatment with granulocyte-macrophage colony stimulating factor (GM-CSF) or granulocyte (G-CSF) within 4 weeks prior to first PET scan; patients should avoid treatment with these agents between the baseline and 6-12 treatment week imaging sessions
  • Inability to lie still for imaging
  • Weight > 300 pounds (lbs)

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: Diagnostic (11C-acetate, 18F-fluoride, PET)
Patients receive carbon-11 acetate IV and fluorine F 18 sodium fluoride IV over 1 minute and undergo PET at baseline and at 6-12 weeks after systemic therapy starts.
Andet: laboratoriebiomarkøranalyse
Korrelative undersøgelser
Stråling: carbon-11 acetate
Given IV
Stråling: fluorine F 18 sodium fluoride
Given IV
Andre navne:
  • 18 F-NaF
  • F-18 NaF
Procedure: positron emission tomography
Undergo 11C-acetate and 18F-fluoride PET
Andre navne:
  • KÆLEDYR
  • FDG-PET
  • PET-scanning
  • tomografi, emission beregnet

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Changes in prostate cancer metastases as measured by 11C-acetate and 18F-fluoride PET in response to systemic therapy
Tidsramme: Baseline to up to 12 weeks
Percentage change between pre-treatment and post-therapy measurements will be computed for PET measures. Log transformations will be considered if the rates of change are highly skewed. Additionally, changes in PET measures will be analyzed descriptively by a stem-and-leaf plot.
Baseline to up to 12 weeks

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Clinical response data (response, stable disease or progression)
Tidsramme: Up to 5 years
Molecular imaging measures and clinical measures of treatment response, percentage change in PET derived imaging data will be compared to standard clinical parameters. Association between these two types of data decline will be analyzed using the mid-P adjustment to Fisher's exact test (Lancaster, 1961) to evaluate the potential clinical utility of change in 11C-acetate and 18F-fluoride as a biomarker for response.
Up to 5 years
Proportion of both 11C-acetate and 18F-fluoride PET scans and 99mTc bone scans in discovering suspicious sites that are later confirmed by standard bone scans
Tidsramme: Up to 5 years
Statistical significance of two proportions will be tested with a two-sample t-test for proportions (or nonparametric alternative).
Up to 5 years
Change in PSA parameters
Tidsramme: Baseline to up to 30 days post-PET
Spearman rank correlation will be used to examine correlations between PET parameters and continuous variable changes in PSA.
Baseline to up to 30 days post-PET
Change in urinary N-telopeptide
Tidsramme: Baseline to up to 30 days post-PET
Spearman rank correlation will be used to examine correlations between PET parameters and continuous variable changes in urinary N-telopeptide.
Baseline to up to 30 days post-PET
Change in bone alkaline phosphatase
Tidsramme: Baseline to up to 30 days post-PET
Spearman rank correlation will be used to examine correlations between PET parameters and continuous variable changes in bone alkaline phosphatase.
Baseline to up to 30 days post-PET
Progression-free survival (PFS) using PCWG2
Tidsramme: Up to 5 years
Cox proportional hazards model will be used to investigate the predictive value of the differences in pre- and post- treatment measures on PCWG2 PFS.
Up to 5 years
SRE defined as radiographic pathologic fracture, need for radiation to bone, need for surgery, spinal cord compression or malignant hypercalcemia
Tidsramme: Up to 5 years
Cox proportional hazards model will be used to investigate the predictive value of the differences in pre- and post- treatment measures on time of first SRE.
Up to 5 years

Samarbejdspartnere og efterforskere

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

Sponsor

University of Washington

Samarbejdspartnere

National Cancer Institute (NCI)

Efterforskere

  • Ledende efterforsker: Evan Yu, Fred Hutchinson Cancer Research Center/University of Washington Cancer Consortium

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

1. december 2015

Primær færdiggørelse (Forventet)

1. november 2018

Datoer for studieregistrering

Først indsendt

18. juni 2014

Først indsendt, der opfyldte QC-kriterier

18. juni 2014

Først opslået (Skøn)

20. juni 2014

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

31. august 2016

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

29. august 2016

Sidst verificeret

1. august 2016

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 8021 (Anden identifikator: Fred Hutchinson Cancer Research Center/University of Washington Cancer Consortium)
  • P30CA015704 (U.S. NIH-bevilling/kontrakt)
  • NCI-2014-01203 (Registry Identifier: CTRP (Clinical Trial Reporting Program))

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

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Betingelser

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Kosttilskud

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Placeringer

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