One new responder observed in the [212Pb]VMT01 3.0 mCi monotherapy cohort for a total of two confirmed responses out of seven (29%) treated in this cohort of the Phase 1/2a study in heavily pre-treated melanoma; further data expected in late 2026[²¹²Pb]PSV359 advanced to Cohort 3 of the Phase 1/2a study in FAP-expressing solid tumors; initial safety findings in lower dose cohorts were Grades 1 and 2 only, with no DLTs and no discontinuation due to adverse events; further data expected in late 2026Updated [212Pb]VMT-α-NET interim efficacy (n=25) and safety data (n=68) as of April 17, 2026, were consistent with previously disclosed findings at AACR as of March 4, 2026 with continued deepening of responses; additional updates expected in late 2026All three clinical programs continue to be well-tolerated based on safety findings reported in all patients who received at least one treatment SEATTLE, May 21, 2026 (GLOBE NEWSWIRE) -- Perspective Therapeutics, Inc. ('Perspective” or the 'Company”) (NYSE AMERICAN: CATX), a radiopharmaceutical development company pioneering advanced treatments for cancers throughout the body, today announced that updates on all three of its advancing clinical programs, [²¹²Pb]VMT-α-NET, [²¹²Pb]VMT01, and [²¹²Pb]PSV359, will be presented at the 2026 American Society of Clinical Oncology (ASCO) Annual Meeting taking place from May 29 to June 2, 2026 in Chicago, IL.