Osunprotafib is a small molecule drug. The usage of the INN stem '-protafib' in the name indicates that Osunprotafib is a human protein tyrosine phosphatase (HPTP) inhibitor. Osunprotafib is under investigation in clinical trial NCT04777994 (Study With ABBV-CLS-484 in Participants With Locally Advanced or Metastatic Tumors). Osunprotafib has a monoisotopic molecular weight of 385.15 Da.