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15 February 2016

Effects of testosterone treatment in older men

Effects of testosterone treatment in older men

Medical research can be of varying quality. The double-blind randomized controlled trial (RCT) is accepted by medicine as the gold standard objective scientific methodology, and provides the highest strength of evidence for the effectiveness of a treatment. Growing research evidence shows that treating testosterone deficient men with testosterone therapy provides a number of wide-ranging benefits beyond mere relief of symptoms, including improvements in muscle mass, insulin sensitivity, fat mass (both total body fat and visceral fat), endothelial function, blood pressure, lipid profile and bone mineral density.

Recent clinical practice guidelines state that testosterone therapy is safe if treatment and monitoring are appropriately executed, and most of the available evidence does not support alleged concerns regarding risk of cardiovascular disease and prostate cancer. Despite this, opponents state that the clinical benefits and potential long-term risks of testosterone therapy have not been adequately assessed in large RCTs, and that therefore a general policy of testosterone replacement in all older men with age-related decline in testosterone levels is not justified.

To address the lack of large RCTs on testosterone therapy, the US National Institute of Health has funded The Testosterone Trials, which is a coordinated set of 7 large double-blind RCTs. Here we report the first results from The Testosterone Trials.


Last updated: 2019
G.MKT.GM.MH.02.2018.0506