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Research monograph

Tesamorelin[Egrifta]

Compound snapshot

Class

GHRH analogue

FDA approved

Yes — approved for HIV-associated lipodystrophy

Clinical development

Approved

Last reviewed

September 2026

Research areas

Visceral fat / HIV-associated lipodystrophy / Growth hormone axis

Regulatory status

FDA-approved medicine

Internet attention

Moderate

Registry query

Tesamorelin

A stabilised GHRH analogue and the only GH-axis peptide in this list with full FDA approval — for excess abdominal fat in HIV-associated lipodystrophy.

Reality check — what we actually know

Supported by human evidence

  • This compound has completed human trials in at least one approved indication — see the regulatory section for what was actually approved.

Animal research only

  • Clinically proven visceral adipose tissue reduction (~15–18% in pivotal trials) without weight-loss dieting
  • Improvement in triglycerides in trial populations
  • Reduced liver fat in studies of HIV-associated fatty liver

Mechanistically plausible

  • Stimulates endogenous GH release, which increases lipolysis preferentially in visceral (organ-surrounding) fat.

Common internet claims

  • Online discussion frequently presents Tesamorelin as a proven treatment rather than a research compound.

Not established

  • Human efficacy for the outcomes commonly claimed
  • Optimal route, quantity and duration in humans
  • Long-term human safety

Evidence distribution

Each band is a live PubMed search for Tesamorelin, filtered to that kind of study. Top is the strongest evidence; the base is reasoning, not proof. A band with no records means that kind of study has not been published for this compound yet.

Mechanism and reported findings

Stimulates endogenous GH release, which increases lipolysis preferentially in visceral (organ-surrounding) fat.

  • Clinically proven visceral adipose tissue reduction (~15–18% in pivotal trials) without weight-loss dieting
  • Improvement in triglycerides in trial populations
  • Reduced liver fat in studies of HIV-associated fatty liver
  • Studied for cognitive effects in older adults with mild cognitive impairment

Strength of the evidence: Randomised, placebo-controlled Phase 3 trials supporting its approved indication. Use outside that indication is off-label.

Safety and known cautions

Prescription-only. Raises IGF-1; can worsen glucose tolerance and cause injection-site reactions, joint pain and swelling.

Evidence at a glance

No single score, on purpose. The line beside each bar shows how much reported outcomes vary between studies.

Human studiesMultiple studies
Animal studiesMultiple studies
Lab / in-vitroMultiple studies
Clinical efficacyEstablished
Long-term safetyLimited

Development stage

  1. Discovery
  2. Preclinical
  3. Phase 1
  4. Phase 2
  5. Phase 3
  6. Regulatory review
  7. ApprovedCurrent
Registered trials on ClinicalTrials.gov →

Primary sources

Education only — research summary, not dosing advice. Approved medicines are prescription-only; investigational compounds are not approved for human use.
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