Chrysalin (TP508)
Overview
Chrysalin, also known as TP508, is a 23-amino acid synthetic peptide derived from the receptor-binding domain of human thrombin. It is designed to activate non-proteolytic thrombin receptors on endothelial cells, fibroblasts, and osteoblasts, thereby promoting angiogenesis, granulation tissue formation, and bone repair. The peptide retains thrombin's tissue repair signaling properties without procoagulant activity.
Key Research Findings
Phase II trials in diabetic foot ulcers and fracture healing showed some evidence of accelerated wound closure and callus formation. However, subsequent phase III trials did not demonstrate statistically significant improvements in primary endpoints, and commercial development has been limited.
Topical, Subcutaneous injection
Investigational
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