1. Adherence to guidelines for androgen deprivation therapy after radical prostatectomy: Swedish population-based study.
- Author
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Lycken, Magdalena, Drevin, Linda, Garmo, Hans, Larsson, Anders, Andrén, Ove, Holmberg, Lars, and Bill-Axelson, Anna
- Subjects
GLEASON grading system ,PROSTATECTOMY ,CASTRATION-resistant prostate cancer ,CANCER diagnosis ,ANDROGENS ,PROSTATE-specific antigen ,GUIDELINES - Abstract
Background: Androgen deprivation therapy (ADT) is a non-curative but essential treatment of prostate cancer with severe side effects. Therefore, both over- and underuse should be avoided. We investigated adherence to guidelines for ADT following radical prostatectomy through Swedish population-based data. Material and methods: We used the database Uppsala/Örebro PSA cohort (UPSAC) to study men with localised or locally advanced prostate cancer at diagnosis (clinical stage T1–T3, N0–NX, M0–MX, and prostate-specific antigen (PSA) <50 ng/ml) who underwent radical prostatectomy 1997–2012. 114 men were treated with ADT and selected as cases; 1140 men with no ADT at the index date were selected as controls within 4-year strata of year of radical prostatectomy. All men with a biochemical recurrence and a PSA doubling time <12 months and/or a Gleason score of 8–10 were considered to have an indication for ADT according to the European Association of Urology (EAU) guidelines. Results: No indication for ADT was found in 37% of the cases. Among these, 88% had clinical stage T1–2 at diagnosis, 57% had a biopsy Gleason score 2–6, 98% had an expected remaining lifetime over 10 years, 12% received castration, and 88% received antiandrogen monotherapy. 2% of controls were found to have an indication for ADT, and 96% of these had an expected remaining lifetime over 10 years. Conclusion: Our results indicate that overtreatment with ADT after radical prostatectomy is common, whereas undertreatment is unusual. Interventions to improve adherence to guidelines are needed to avoid unnecessary side-effects and long treatment durations with ADT. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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