Testosterone: Friend or Foe?
Written by Kathy Lynch, PharmD – Women’s International Pharmacy
There have been few medical debates more contentious than the current controversy surrounding testosterone replacement therapy (TRT) and cardiovascular disease (CVD).
Two recent studies highlighted a possible, though far from probable, association between TRT and myocardial infarction (MI) or stroke. However, the Androgen Study Group (ASG), which was formed to respond to inaccurate attacks on TRT by the medical and public media, quickly discovered misreporting that resulted in two published corrections to one of the studies. With support from medical societies, researchers, and scientists around the world, ASG petitioned the Journal of American Medical Association (JAMA) to retract one of the misleading studies.
Dr. Neal Rouzier, a geriatric specialist who routinely prescribes testosterone to his male patients, has also been vocal in his criticism of the JAMA study. He reports that none of the 2,000 male patients he has treated with TRT experienced MI, and he maintains that 40 years of radiologic and laboratory studies demonstrate long-term protection against plaque buildup. Although low levels of testosterone have consistently been associated with an increase in CVD and mortality, Dr. Rouzier supports a cautious approach when prescribing TRT in older men with CVD or significant risk factors.
A new study, presented at the 2013 meeting of the European Association for the Study of Diabetes, found that low testosterone levels are associated with an increased number of acute MIs in diabetic men. Another recently published study found that older men who received testosterone injections did not appear to have an increased risk for MI. In fact, testosterone injections actually appear to be protective in men at high risk for MI. Clinical data compiled from 40 Low T Centers nationwide also found no association between TRT and MI or stroke.
- Vigen R, et al. Association of Testosterone Therapy With Mortality, Myocardial Infarction, and Stroke in Men With Low Testosterone Levels.
- The Androgen Study Group. https://www.androgenstudygroup.org/.
- O’Riordan M. Low Levels of Testosterone Linked With Acute MI in Male Diabetics. Sep 25 2013.
- Baillargeon J, et al. Risk of Myocardial Infarction in Older Men Receiving Testosterone Therapy. Ann Pharmacother. 2014 Sep;48(9):1138-1144. Epub 2014 Jul 2.
- “New Research Findings Conducted by the Low T Institute Contradict Controversial Testosterone Studies” by R.S. Tan, W.G. Reilly and K. Cook; May 27 2014.