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Association between duration and type of androgen deprivation therapy and risk of diabetes in men with prostate cancer
Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Urology and Andrology. Department of Surgical Sciences, Uppsala University, Uppsala, Sweden.
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2016 (English)In: International Journal of Cancer, ISSN 0020-7136, E-ISSN 1097-0215, Vol. 139, no 12, p. 2698-2704Article in journal (Refereed) Published
Abstract [en]

Androgen deprivation therapy (ADT) for prostate cancer (PCa) increases risk of type 2 diabetes (T2DM); however the association between types and duration of ADT has not been fully elucidated. We examined how type and duration of ADT affects risk of T2DM. Using data from Prostate Cancer database Sweden (PCBaSe) we investigated risk of T2DM in a cohort of 34,031 men with PCa on ADT; i.e., anti-androgens (AA), orchiectomy, or gonadotropin-releasing hormone (GnRH) agonists compared to an age-matched, PCa-free comparison cohort (n = 167,205) using multivariate Cox proportional hazard regression. T2DM was defined as a newly filled prescription for metformin, sulphonylurea, or insulin in the Prescribed Drug Register. A total of 21,874 men with PCa received GnRH agonists, 9,143 AA and 3,014 underwent orchiectomy. Risk of T2DM was increased in men in the GnRH agonists/orchiectomy group during the first 3 years of ADT [i.e., 1 - 1.5 years HR: 1.61 (95%CI: 1.36 - 1.91)], compared to PCa-free men. The risk decreased thereafter (e.g., 3 - 4 years HR: 1.17 (95% CI: 0.98 - 1.40)). Conversely, no increased risk was seen in men on AA (HR: 0.74 (95%CI: 0.65 - 0.84). The incidence of T2DM per 1,000 person-years was 10 for PCa-free men, 8 for men on AA, and 13 for men on GnRH agonists/orchiectomy. Duration of ADT has a significant impact on risk of T2DM. With the peak after three years of treatment, our data indicates that men on ADT, even for a limited period of time, such as adjuvant to radiotherapy, are at increased risk of T2DM.

Place, publisher, year, edition, pages
2016. Vol. 139, no 12, p. 2698-2704
Keywords [en]
prostate cancer, type two diabetes, androgen deprivation therapy
National Category
Cancer and Oncology
Identifiers
URN: urn:nbn:se:umu:diva-128546DOI: 10.1002/ijc.30403ISI: 000387619400007PubMedID: 27557616Scopus ID: 2-s2.0-84992488510OAI: oai:DiVA.org:umu-128546DiVA, id: diva2:1052737
Available from: 2016-12-07 Created: 2016-12-07 Last updated: 2023-03-24Bibliographically approved

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Stattin, PärHäggström, Christel

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