
Review of trials shows testosterone increases lean body mass, and is most
effective when given intramuscularly
Graham McKerrow, HIV i-Base

A review of randomised,
placebo-controlled trials concludes that testosterone therapy increases
lean body mass more than placebo in HIV-positive patients
with wasting. And the researchers at St Bartholomew’s Hospital in
London also conclude that the increase is even greater if the therapy is
given intramuscularly.
Anthony Kong and colleagues report that eight trials met the inclusion
criteria and 417 randomised patients were included. Only six trials used
lean body mass, fat-free mass, or body cell mass as outcome measures and
meta-analysis of these showed a difference in lean body mass between the
testosterone group and the placebo group of 1.22kg for the random effect
model and 0.51kg for fixed effect.
The researchers draw attention to the fact that the difference was much
greater in three trials that used the intramuscular route: 3.34kg in the
post-hoc analysis.
All eight trials included total body weight as an outcome measure, the
meta-analysis of which showed a difference of 1.04kg by random effect and
0.63kg for fixed effect models. The incidence of adverse effects was similar
in both groups.
The researchers warn
that the study is limited by the small numbers and heterogeneity of the
population, but nonetheless they write: “Testosterone
therapy may be considered in patients with HIV wasting syndrome to reverse
muscular loss, but there is a concern about the adverse metabolic effects
of long-term testosterone administration and long-term follow-up for these
patients is needed.”
Ref: Kong A, Edmonds P. Testosterone therapy in HIV wasting syndrome:
systematic review and meta-analysis. Lancet Infect Dis 2002 Nov;2(11):692-9
http://www.ncbi.nlm.nih.gov:80/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=12409050&dopt=Abstract
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