Article: Prophylactic Breast Irradiation for Prevention of Bicalutamide-induced Painful Gynecomastia in Patients with Low- and Intermediate-risk Prostate Cancer.
The Israel Medical Association journal : IMAJ
2023 Volume 25, Issue 3, Page(s) 205–209
Abstract: Background: Bicalutamide monotherapy (BMT) is an option for androgen deprivation therapy (ADT) in patients with low- and intermediate-risk prostate cancer (LIR-PC). Painful gynecomastia (PG) is a common side effect of BMT. Few therapeutic options are ... ...
Abstract | Background: Bicalutamide monotherapy (BMT) is an option for androgen deprivation therapy (ADT) in patients with low- and intermediate-risk prostate cancer (LIR-PC). Painful gynecomastia (PG) is a common side effect of BMT. Few therapeutic options are available for preventing BMT-induced PG. Objectives: To assess the efficacy and side effects of single fraction (SF) prophylactic breast irradiation (PBI) to prevent painful gynecomastia (PG) in patients LIR-PC treated with BMT. Methods: We reviewed the results of bilateral PBI in a prospective cohort of LIR-PC patients who received 150 mg bicalutamide daily as a first-line treatment for at least 12 months. A single fraction of 8 Gy was administered to both breasts by a stationary field of 10 × 10 cm, using 10-15 MeV electron beam. PBI was commenced on the same day as BMT, but prior to the first dose of bicalutamide. A radiotherapy treatment plan was designed to cover breast tissue by the 90% isodose line. Subsequent monthly physical examinations were scheduled for all patients during the first year of BMT to evaluate any PG symptoms. Results: Seventy-six patients received BMT and PBI, 80% (61/76) showed no signs of PG; 20% (15/76) experienced mild gynecomastia. The main adverse effect of PBI was grade 1 radiation dermatitis. Conclusions: PBI using a SF of 8 Gy is an effective, safe, and low-cost strategy for the prevention of BMT-induced PG in LIR-PC patients. |
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MeSH term(s) | Humans ; Male ; Androgen Antagonists/adverse effects ; Gynecomastia/chemically induced ; Gynecomastia/prevention & control ; Pain ; Prospective Studies ; Prostatic Neoplasms/radiotherapy |
Chemical Substances | Androgen Antagonists ; bicalutamide (A0Z3NAU9DP) |
Language | English |
Publishing date | 2023-04-24 |
Publishing country | Israel |
Document type | Journal Article |
ZDB-ID | 2008291-5 |
ISSN | 1565-1088 ; 0021-2180 |
ISSN | 1565-1088 ; 0021-2180 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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