What it is
Tesamorelin is a synthetic 44-amino-acid GHRH analogue modified for stability. FDA-approved (2010) for reduction of visceral adipose tissue in HIV-associated lipodystrophy.
Evidence snapshot
Category: Growth Hormone. Status: Human Trials. See the references section below for the underlying primary sources.
Mechanism
Binds the GHRH receptor, stimulating endogenous GH release and downstream IGF-1 elevation. Pulsatile GH release more closely mimics physiological patterns than exogenous GH.
Key research findings
Phase 3 trials demonstrated significant reduction in visceral adipose tissue with tesamorelin treatment in HIV-associated lipodystrophy.
Limits of the evidence
Limited indication (HIV-associated lipodystrophy). IGF-1 elevations can exceed physiological range; monitoring recommended. Off-label use in other indications lacks rigorous trial support.