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    Few prostate Ca patients with BCR develop metastasis

    Shorter time to biochemical recurrence predicts metastatic disease

    Hamburg, Germany—Fewer than 20% of patients with biochemical recurrence after radical prostatectomy (RP) develop metastasis, and a smaller proportion die as a result of prostate cancer.

    Read - New Products: Test launched to improve prostate biopsy decision process

    A retrospective analysis of more than 4,000 men undergoing RP also identified a shorter time to biochemical recurrence as a predictor of metastatic disease, German researchers reported at the AUA annual meeting in San Diego.

    Not all patients with biochemical recurrence after RP progress to systemic disease or cancer-specific death. Recent studies show similar survival rates for patients with and without biochemical recurrence at 10 years.

    Lead investigator Raisa Pompe, MD, assistant professor of oncology at the University Medical Center Hamburg-Eppendorf in Hamburg, and co-investigators sought to analyze the long-term oncologic outcomes in a large German cohort of patients with biochemical recurrence and to identify predictors of metastasis and prostate cancer death in these men.

    To accomplish this goal, they assessed data from 4,754 men who underwent RP between 1992 and 2005 at Martini-Klinik, Hamburg. Included were patients with biochemical recurrence defined as a serum PSA level ≥0.2 ng/mL on two consecutive measurements. Patients who received neoadjuvant or adjuvant treatment were excluded. Univariate and multivariate regression analyses were performed to identify predictors of oncologic outcomes.

    In the database, 1,189 had biochemical recurrence within a median follow-up of 132.6 months. The median time to biochemical recurrence was 37.9 months. About 60% of these patients had extraprostatic disease, about 80% had a Gleason score ≥6, 5% had a Gleason score ≥8, and 35% had positive surgical margins.

    Of the 1,189 patients with biochemical recurrence, 15.9% developed metastatic disease and 11.1% died from prostate cancer.

    “We found a 10-year metastasis-free survival of 87.1% and a 10-year cancer-specific survival rate of 90.8%,” Dr. Pompe said. The 10-year overall survival rate was 85.9%.

    Univariate analysis showed the worst metastasis-free survival and cancer-specific survival in the group that experienced biochemical recurrence within 12 months after surgery.

    Next: Higher Gleason score among predictors

    Wayne Kuznar
    Wayne Kuznar is a contributor to Urology Times.

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