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Follistatin-344 Side Effects and Safety

Reported Follistatin-344 side effects, contraindications, and safety signals.

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Compiled from published research · Last updated 2026-07-24T00:00:00.000Z

No Human Safety Data for the Injectable Peptide

Because the injectable peptide has never been studied in humans, there is no characterized human side-effect profile for this specific product. The gene-therapy trial (a different intervention) reported generally mild tolerability, but this doesn't transfer to the injectable peptide's safety profile. Active malignancy is treated as a precautionary contraindication given myostatin's broader role in cell growth regulation.

Contraindications

  • pregnancy
  • active malignancy

References

  1. A phase 1/2a follistatin gene therapy trial for Becker muscular dystrophy · Mendell JR, et al. · 2015
All Follistatin-344 sections

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