SAN FRANCISCO, CA and TORONTO, ON — (April 21, 2021) – Claritas Pharmaceuticals, Inc. (TSX VENTURE: CLAS and OTC: KALTF) (the “Company” or “Claritas“) today announced that it has entered into an agreement with CMAX Clinical Research Pty Ltd (“CMAX”) to conduct a randomized, placebo-controlled, single-blind, single ascending dose Phase 1 clinical study to evaluate the pharmacokinetics and safety profile of the Company’s novel, liquid, nitric oxide-releasing drug, R-107.