UPDATE 1-Regenxbio's muscle disorder therapy meets main goal in late-stage study

REGENXBIO, Inc.

REGENXBIO, Inc.

RGNX

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- Regenxbio RGNX.O said on Thursday that its experimental therapy to treat a muscle-wasting disorder met the main goal in a late-stage study.

Shares of the company were halted in premarket trading.

The Rockville, Maryland-based company said 93% of patients with Duchenne muscular dystrophy treated with the therapy RGX-202 reached the expected level of a key protein known as microdystrophin 12 weeks after treatment.

Microdystrophin is a shortened version of dystrophin, the muscle-protecting protein missing or defective in people with the disorder.

The company said the drug was well-tolerated. It plans to seek accelerated approval in 2027.