Phase II study of first-line sagopilone plus prednisone in patients with castration-resistant prostate cancer: A phase II study of the Department of Defense Prostate Cancer Clinical Trials Consortium

T. M. Beer, D. C. Smith, A. Hussain, M. Alonso, J. Wang, M. Giurescu, K. Roth, Y. Wang

    Research output: Contribution to journalArticle

    17 Scopus citations

    Abstract

    Background:Preclinical studies in prostate cancer (PC) models demonstrated the anti-tumour activity of the first fully synthetic epothilone, sagopilone. This is the first study to investigate the activity and safety of sagopilone in patients with metastatic castration-resistant PC (CRPC).Methods:Chemotherapy- nave patients with metastatic CRPC received sagopilone (one cycle: 16 mg m -2 intravenously over 3 h q3w) plus prednisone (5 mg twice daily). The primary efficacy evaluation was prostate-specific antigen (PSA) response rate (≥50% PSA reduction confirmed ≥28 days apart). According to the Simon two-stage design, ≥3 PSA responders were necessary within the first 13 evaluable patients for recruitment to continue until 46 evaluable patients were available.Results:In all, 53 patients received ≥2 study medication cycles, with high compliance. Mean individual dose was 15.1±1.4 mg m-2 during initial six cycles, mean dose intensity 94±9%. The confirmed PSA response rate was 37%. Median overall progression-free survival was 6.4 months. The most commonly reported adverse events (>10% of patients) were peripheral neuropathy (94.3%), fatigue (54.7%) and pain in the extremities (47.2%). Sagopilone was associated with very little haematological toxicity.Conclusion: This study shows that first-line sagopilone has noteworthy anti-tumour activity and a clinically significant level of neuropathy for patients with metastatic chemotherapy-nave CRPC.

    Original languageEnglish (US)
    Pages (from-to)808-813
    Number of pages6
    JournalBritish Journal of Cancer
    Volume107
    Issue number5
    DOIs
    StatePublished - Aug 21 2012

    Keywords

    • clinical trial
    • epothilones
    • phase II
    • prednisone
    • prostatic neoplasms

    ASJC Scopus subject areas

    • Oncology
    • Cancer Research

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