Ultragenyx publishes 96-week phase 3 data for GSDIa gene therapy
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Ultragenyx Announces the Publication of a Successful 96-Week Randomized, Placebo-Controlled Trial with Crossover Treatment of GENGLYCOS™ (also known as DTX401) AAV Gene Therapy in GSDIa in The Journ
September 1, 2026 4:05 PM EDTAt Week 96, participants across treatment and crossover groups experienced mean reduction in daily cornstarch intake of 61% while maintaining glycemic control, with most participants achieving reduction of at least 50%
Complete elimination of nighttime cornstarch dosing observed in 33% of DTX401 treatment group and 42% of crossover group, while maintaining glycemic control
Analyses at Week 48 showed that 83% of DTX401-treated participants met or exceeded their own expectations for meaningful cornstarch reduction
NOVATO, Calif., Sept. 01, 2026 (GLOBE NEWSWIRE) -- Ultragenyx Pharmaceutical Inc. (NASDAQ: RARE) today announced the... More

