Palatin Technologies Issued U.S. Patent for Key Component in PL-3994 Drug Candidate

Palatin Technologies, Inc. PTN announced today that the U.S. Patent and Trademark Office issued U.S. Patent No. 7,964,181, titled "Amino Acid Surrogates for Peptidic Constructs." The claims in the issued patent cover a series of small molecule mimics for naturally occurring amino acids which can be used as building blocks in drug development. A small molecule mimic claimed in the issued patent is used in making PL-3994, Palatin's lead peptide mimetic natriuretic peptide receptor A agonist, which is in development for treatment of acute exacerbations of asthma, heart failure and refractory or difficult-to-control hypertension.