Phase I study suggests safety and efficacy of growth hormone and testosterone combination therapy in FSHD

In the Phase I study called STARFISH, researchers at the University of Rochester evaluated the safety and potential efficacy of a combination treatment of recombinant human growth hormone (rHGH) and testosterone in 20 adult men with facioscapulohumeral muscular dystrophy (FSHD).

  • The 19 participants who completed the study did not experience any serious adverse effects.
  • After 24 weeks of treatment, the walking distance in the 6-minute walk test increased by more than 37 metres.
  • Lean body mass increased by 2.21 kilograms, while fat mass decreased by 1.3 kilograms.
  • Overall strength increased by 3%.
  • The burden of disease, as measured by the FSHD Health Index, was also reduced.

Larger-scale randomised, double-blind, placebo-controlled trials will be needed to further investigate this promising therapeutic approach.

 

Study of Testosterone and Recombinant Human Growth Hormone in Facioscapulohumeral Muscular Dystrophy. Heatwole CR, Luebbe E, Hamel J et al. Neurol Genet. 2025 August 27. doi: 10.1212/NXG.0000000000200292.

 

ClinicalTrials.gov : NCT03123913