NOVATO, Calif., Oct. 03, 2024 (GLOBE NEWSWIRE) -- Ultragenyx Pharmaceutical Inc. (NASDAQ: RARE) today reported that the Phase 1/2/3 Cyprus2+ study of its UX701 gene therapy has demonstrated meaningful clinical activity as well as improvements in copper metabolism in Stage 1. Multiple responders have completely tapered off of standard-of-care treatment with responses seen in all three dose cohorts. The company plans to enroll an additional cohort in Stage 1 at a moderately increased dose and with an optimize ...