Quality of Life, Morbidity, and Mortality Results of a Prospective Phase II Study of Intermittent Androgen Suppression for Men with Evidence of Prostate-Specific Antigen Relapse After Radiation Therapy for Locally Advanced Prostate Cancer
| Autor: | S. Larry Goldenberg, Nicholas Bruchovsky, Jonas Abersbach, Juanita Crook, Norman Phillips, Laurence Klotz |
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| Rok vydání: | 2008 |
| Předmět: |
Male
Oncology medicine.medical_specialty medicine.drug_class Urology medicine.medical_treatment Adenocarcinoma Androgen suppression Antiandrogen Prostate cancer Quality of life Internal medicine medicine Humans Prospective Studies Progression-free survival Survival rate Aged business.industry Prostatic Neoplasms Androgen Antagonists General Medicine Prostate-Specific Antigen medicine.disease Surgery Survival Rate Radiation therapy Prostate-specific antigen Treatment Outcome Quality of Life Morbidity Neoplasm Recurrence Local business |
| Zdroj: | Clinical Genitourinary Cancer. 6:46-52 |
| ISSN: | 1558-7673 |
| DOI: | 10.3816/cgc.2008.n.008 |
| Popis: | Background Observations of quality of life (QOL), morbidity, and mortality were obtained from the results of a prospective phase II study of intermittent androgen suppression for recurrent prostate cancer after radiation therapy. Patients and Methods Patients with histologically confirmed adenocarcinoma of the prostate and a rising serum prostate-specific antigen level after external-beam radiation of the prostate were treated intermittently with a 36-week course of cyproterone and leuprolide. At predetermined intervals, QOL was assessed using the Southwest Oncology Group 9346 QOL and the American Urological Association symptom score questionnaires. Progression-free and overall survival rates were estimated using the Kaplan-Meier method. Parameters related to progression were explored with univariate and multivariate analyses. Results The incidence of adverse events was higher when patients were on treatment. Fatigue, dyspnea, and hematuria were the most common symptoms and signs recorded (50.5%, 24.8%, and 17.4%, respectively). Less frequent were myocardial infarction (7.3%), cerebrovascular accident (6.4%), and deep vein thrombosis (5.5%). Quality of life improved when off treatment, as indicated by a shift toward baseline levels in the scales depicting physical and work functions, hot flashes, impotence, sexual performance, urgency, and nocturia. Biochemical recurrence-free survival at 5 years was 70%, with a median > 6 years. The overall 5-year survival was 80%, similar to that of an age-matched population of normal men. Conclusion Intermittent androgen suppression is a potentially useful treatment for locally recurrent prostate cancer after radiation therapy with QOL benefits in the off-treatment interval and no apparent deleterious effects on short- to medium-term survival. |
| Databáze: | OpenAIRE |
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