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- Essai clinique NCT00967954
Study of Blood and Tissue Samples From Patients Receiving Androgen Deprivation for Newly Diagnosed Prostate Cancer
A Study of Changes in the Prostate Following Androgen Deprivation to Investigate Therapy Response and Resistance in Clinical Prostate Cancer
RATIONALE: Studying samples of blood and tissue from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer. It may also help doctors predict how patients will respond to treatment.
PURPOSE: This research study is looking at blood and tissue samples from patients with prostate cancer receiving androgen deprivation therapy.
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
- Génétique: analyse de l'expression génique
- Autre: laboratoire d'analyse de biomarqueurs
- Procédure: imagerie par résonance magnétique pondérée en diffusion
- Génétique: Analyse ADN
- Génétique: Analyse d'ARN
- Génétique: hybridation génomique comparative
- Procédure: imagerie spectroscopique par résonance magnétique
- Médicament: thérapie anti-androgène
- Médicament: libération d'un traitement hormonal agoniste
Description détaillée
OBJECTIVES:
- To identify the molecular and pathophysiological changes which occur during the early stages of androgen deprivation (AD) and during emerging castration-resistant prostate cancer.
- To test functional imaging as a non-invasive tool to measure treatment response and validate this using biological endpoints.
- To develop clinical models to predict how tumors will respond to AD and identify new targets once AD fails.
OUTLINE:
- Group A: Patients likely to receive androgen deprivation (AD) as first-line therapy undergo blood and prostate biopsy sample collection before and after treatment on days 0 and 14 or 90. Patients receive an androgen receptor inhibitor followed by maintenance with a gonadotropin-releasing hormone analogue beginning on day 0. Patients also undergo diffusion-weighted MRI, MR spectroscopic imagining, quantitative T1W mapping, and T1W perfusion sequence.
- Group B: Patients already receiving AD undergo blood and prostate biopsy sample collection within 4 weeks of diagnosis of castration-resistant prostate cancer and before initiating any second-line therapy.
Blood and tissue samples are assessed via DNA and RNA genetic analysis, gene expression studies, and comparative genomic hybridization to identify novel markers of androgen response and resistance.
Peer Reviewed and Funded or Endorsed by Cancer Research UK.
Type d'étude
Inscription (Anticipé)
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
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England
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Cambridge, England, Royaume-Uni, CB2 0RE
- Recrutement
- Cancer Research UK at Cambridge Research Institute
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Contact:
- Vincent Gnanapragasam, MD
- Numéro de téléphone: 44-1223-348-363
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
- Enfant
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
DISEASE CHARACTERISTICS:
Meets 1 of the following criteria:
- High clinical suspicion of prostate cancer, based on an abnormal digital rectal examination and PSA (> 20 ng/mL)
Newly diagnosed, castration-resistant prostate cancer
- Clinical stage ≥ T2c disease
- Significant tumor volume on initial diagnostic biopsy (> 50% of cores)
- Likely to receive androgen deprivation therapy for prostate cancer
PATIENT CHARACTERISTICS:
- No contraindication to transrectal needle biopsy
- No contraindication to MRI or prostate needle biopsy
PRIOR CONCURRENT THERAPY:
- See Disease Characteristics
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Non randomisé
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
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Identification of molecular and pathophysiological changes
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Functional imaging as a non-invasive tool to measure treatment response
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Development of clinical models to predict tumor response
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Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Chercheur principal: Vincent Gnanapragasam, MD, Cancer Research UK
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Anticipé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Estimation)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- CDR0000639017
- CRUK-CHIRRP
- EU-20920
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