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Study wrapper · #36

Therapeutic Peptides in Orthopaedics: Applications, Challenges, and Future Directions.

Rahman OF, Lee SJ, Seeds WA Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews. 2026.

Editor's note

This narrative review, published in the Journal of the American Academy of Orthopaedic Surgeons: Global Research & Reviews, surveys the mechanistic rationale for using therapeutic peptides — including BPC-157, TB-500, GHK-Cu, ipamorelin, CJC-1295, tesamorelin, sermorelin, semax, selank, and epitalon — in orthopaedic and musculoskeletal contexts. As a narrative review, it synthesises existing literature rather than generating new data; it carries no experimental controls, no patient cohort, and no statistical analysis of outcomes. Readers should weight it as an expert-curated overview, not as clinical evidence.

The review's own authors acknowledge the central limitation plainly: preclinical findings are promising, but clinical trials are currently lacking. That candid admission matters. For most peptides covered — BPC-157, TB-500, ipamorelin, and epitalon in particular — the mechanistic picture is built almost entirely on rodent and in-vitro models. Tesamorelin is the notable exception, carrying FDA approval for HIV-associated lipodystrophy on the basis of Phase III RCT data, though that evidence does not transfer to orthopaedic applications.

The review is useful as a...

Plain-language abstract

This narrative review, published in the Journal of the American Academy of Orthopaedic Surgeons: Global Research & Reviews, examines a broad class of research compounds called therapeutic peptides and asks whether they might have a role in orthopaedic medicine — including bone, tendon, muscle, and nerve recovery.

Researchers reviewed the published scientific literature on several peptides, including BPC-157, TB-500, GHK-Cu, ipamorelin, CJC-1295, tesamorelin, sermorelin, semax, selank, and epitalon. Each compound was evaluated for its proposed biological mechanism and its relevance to orthopaedic injury and recovery.

The review found that these peptides appear to act on molecular pathways involved in tissue repair, inflammation resolution, and nerve signalling. Wound-healing peptides such as BPC-157, TB-500, and GHK-Cu were reported to promote blood vessel formation and tissue remodelling. Growth hormone-stimulating peptides like ipamorelin, CJC-1295, tesamorelin, and sermorelin were described as activating repair-related growth signals. Peptides such as epitalon were linked to cellular energy regulation, and neuroactive peptides like semax and selank were associated with nerve growth factor pathways.

However, the authors explicitly noted that clinical trials in human orthopaedic patients are currently lacking. The mechanistic evidence reviewed comes primarily from laboratory and animal studies. No adverse event data specific to this review were reported in the...