Adverse events associated with testosterone administration.

Area of Science:

• Gerontology and Endocrinology
• Cardiovascular Safety of Hormone Therapy

Background:

• Testosterone supplementation is known to enhance muscle mass and strength in healthy elderly males.
• The safety and efficacy of testosterone therapy in older men experiencing mobility limitations remain largely uninvestigated.

Purpose of the Study:

• To evaluate the safety and efficacy of testosterone gel in elderly men with mobility limitations.
• To assess the incidence of adverse events, particularly cardiovascular events, associated with testosterone therapy in this demographic.

Main Methods:

• A randomized, placebo-controlled trial involving men aged 65+ with mobility limitations and low testosterone levels.
• Participants received daily testosterone gel or placebo for six months.
• The trial was prematurely terminated due to a higher rate of adverse cardiovascular events in the testosterone group.

Main Results:

• The testosterone group experienced significantly higher rates of cardiovascular, respiratory, and dermatologic adverse events compared to the placebo group.
• Twenty-three subjects in the testosterone group reported cardiovascular adverse events versus five in the placebo group.
• Despite increased risks, the testosterone group showed greater improvements in muscle strength and mobility.

Conclusions:

• Testosterone gel application in older men with mobility issues and chronic diseases is linked to an elevated risk of cardiovascular adverse events.
• The study's limited sample size and specific population characteristics restrict the generalizability of findings on testosterone therapy safety.