Protagonist Therapeutics, Inc., a biopharmaceutical company, develops peptide-based drugs for hematology and blood disorders, and inflammatory and immunomodulatory diseases.
It is developing Rusfertide (PTG-300), an injectable hepcidin mimetic that is in Phase II clinical trials for the treatment of erythrocytosis, iron overload, and other blood disorders; and JNJ-2113, an orally delivered investigational drug to block biological pathway.