Testosterone and Aging: Clinical Research Directions

by Institute of Medicine, Board on Health Sciences Policy, Committee on Assessing the Need for Clinical Trials of Testosterone Replacement Therapy

Popular culture often equates testosterone with virility, strength, and the macho male physique. Viewed by some as an "antiaging tonic," testosterone's reputation and increased use by men of all ages in the United States have outpaced the scientific evidence about its potential benefits and risks. In particular there has been growing concern about an increase in the number of middle-aged and older men using testosterone and the lack of scientific data on the effect it may have on aging males. Studies of testosterone replacement therapy in older men have generally been of short duration, involving small numbers of participants and often lacking adequate controls. Testosterone and Aging weighs the options of future research directions, examines the risks and benefits of testosterone replacement therapy, assesses the potential public health impact of such therapy in the United States, and considers ethical issues related to the conduct of clinical trials. Testosterone therapy remains an attractive option to many men even as speculation abounds regarding its potential.

238 pages, Paperback

First published January 1, 2004

About the author

The National Academy of Medicine (NAM, formerly the Institute of Medicine-IOM) is an American nonprofit, non-governmental organization. The National Academy of Medicine is a part of the National Academies of Sciences, Engineering, and Medicine, along with the National Academy of Sciences (NAS), National Academy of Engineering (NAE), and the National Research Council (NRC).

The National Academy of Medicine provides national advice on issues relating to biomedical science, medicine, and health, and serves as an adviser to the nation to improve health aims to provide unbiased, evidence-based, and authoritative information and advice concerning health and science policy to policy-makers, professionals, leaders in every sector of society, and the public at large.

Operating outside the framework of the U.S. federal government, it relies on a volunteer workforce of scientists and other experts, operating under a formal peer-review system. As a national academy, new members of the organization are elected annually by current members, based on their distinguished and continuing achievements in a relevant field as well as for their willingness to participate actively.