Oncotelic Announces Pipeline Presentation and IPO Update of Sapu Therapeutics at the 2022 BIO International Convention AGOURA HILLS, Calif., May 18, 2022 (GLOBE NEWSWIRE) -- Oncotelic Therapeutics, Inc. (“Oncotelic” or the “Company”) (OTCQB:OTLC), developer of treatments for rare and orphan indications, including...