The Clinical Significance of Bone Mineral Density Changes Following Long-Term Androgen Deprivation Therapy in Localized Prostate Cancer Patients.

Autor:	Khriguian J; McGill University Health Centre, Montreal, Quebec, Canada., Tsui JMG; McGill University Health Centre, Montreal, Quebec, Canada., Vaughan R; McGill University, Montreal, Quebec, Canada., Kucharczyk MJ; Dalhousie University, Halifax, Nova Scotia, Canada., Nabid A; Centre Hospitalier Universitaire de Sherbrooke (CHUS), Sherbrooke, Quebec, Canada., Bettahar R; Centre Hospitalier Régional de Rimouski-Centre de Cancer, Rimouski, Quebec, Canada., Vincent L; Pavillon Ste-Marie Centre Hospitalier Régional de Trois-Rivières (CHRTR), Trois-Rivières, Quebec, Canada., Martin AG; Centre Hospitalier Universitaire de Québec (CHUQ)-L'Hôtel-Dieu de Québec, Quebec City, Quebec, Canada., Jolicoeur M; Hôpital Charles LeMoyne, Greenfield Park, Quebec, Canada., Yassa M; Hôpital Maisonneuve-Rosemont, Montreal, Quebec, Canada., Barkati M; Centre Hospitalier de l'Université de Montréal (CHUM) (MB), Montreal, Quebec, Canada., Igidbashian L; Hôpital Cité-de-la-Santé, Laval, Quebec, Canada., Bahoric B; Jewish General Hospital, McGill University, Montreal, Quebec, Canada., Archambault R; Hôpital Gatineau, Gatineau, Quebec, Canada., Villeneuve H; Hôpital de Chicoutimi, Chicoutimi, Quebec, Canada., Mohiuddin M; Saint John Regional Hospital (MM), Saint John, New Brunswick, Canada., Niazi T; Jewish General Hospital, McGill University, Montreal, Quebec, Canada.
Jazyk:	angličtina
Zdroj:	The Journal of urology [J Urol] 2021 Jun; Vol. 205 (6), pp. 1648-1654. Date of Electronic Publication: 2021 Feb 12.
DOI:	10.1097/JU.0000000000001646
Abstrakt:	Purpose: Long-term androgen deprivation therapy has been associated with decreased bone mineral density in men with prostate cancer. Some evidence suggests that there is no impact on fracture risk despite this bone mineral density loss. Our study aimed to quantify changes in bone mineral density in men with high risk prostate cancer on long-term androgen deprivation therapy and calcium and vitamin D supplementation. Materials and Methods: Bone mineral density analysis was conducted for localized high risk prostate cancer patients enrolled in the phase III randomized trial PCS-V (Prostate Cancer Study 5), comparing conventional and hypofractionated radiation therapy. Patients received 28 months of luteinizing hormone-releasing hormone agonist and calcium and vitamin D supplementation (500 mg calcium BID+400 IU vitamin D3 BID). The areal density and T-scores (spine, femoral neck and total femur) at baseline and 30 months of followup were extracted, and the absolute change was calculated. Clinical bone density status (normal, osteopenia, osteoporosis) was monitored. Results: The lumbar spine, femoral neck and total femoral bone mineral density were measured for 226, 231, and 173 patients, respectively. The mean percent change in bone mineral density was -2.65%, -2.76% and -4.27% for these respective sites (p <0.001 for all). The average decrease in bone mineral density across all sites was -3.2%, with no decline in bone mineral density category in most patients (83%). Eight patients (4%) became osteoporotic. Conclusions: Despite a mild decline in bone mineral density, the change in clinical bone mineral density category remained low with long-term androgen deprivation therapy. Consequently, calcium and vitamin D supplementation alone may suffice for most localized prostate cancer patients on long-term androgen deprivation therapy.
Databáze:	MEDLINE
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