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Related Experiment Videos

Stable versus partial response in advanced prostate cancer.

N H Slack, M F Brady, G P Murphy

    The Prostate
    |January 1, 1984
    PubMed
    Summary

    In advanced prostate cancer, patients showing stable response to therapy have better survival than progressors. Stable and partial regression responses indicate similar positive outcomes for patients.

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    Area of Science:

    • Oncology
    • Clinical Trials
    • Prostate Cancer Research

    Background:

    • Advanced prostate cancer treatment response is critical for patient outcomes.
    • The National Prostatic Cancer Project (NPCP) has conducted extensive clinical trials.
    • Reevaluation of NPCP data is needed to refine understanding of treatment response categories.

    Purpose of the Study:

    • To reexamine stable response to therapy in advanced prostate cancer patients.
    • To analyze survival patterns based on treatment response categories from NPCP trials.
    • To clarify the prognostic significance of a 'stable' response versus other categories.

    Main Methods:

    • Analysis of data from ten National Prostatic Cancer Project (NPCP) trials.
    • Inclusion of over 1,300 patients with advanced prostate cancer.
    • Categorization of patients based on response to therapy (stable, partial regression, progression) at 12 weeks.

    Main Results:

    • Patients categorized as progressors after 12 weeks had significantly poorer survival.
    • No statistically significant difference in survival was observed between stable and partial regression categories.
    • Survival patterns were analyzed for all patients and those alive at 12 weeks.

    Conclusions:

    • A 'stable' response in advanced prostate cancer patients is a significant indicator of therapeutic efficacy.
    • The 'stable' response category is prognostically similar to 'partial regression'.
    • These findings suggest that 'stable' disease is not merely slow progression but a positive treatment outcome.

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