Editorial note: This post refers to Pharnext and its experimental CMT1A therapy PXT3003. Pharnext is no longer operating, and PXT3003 is not an approved or available treatment. We have kept this post as part of our historical record.

Pharnext, a biopharmaceutical company, has announced new positive results from the ongoing open-label extension study of their drug PXT3003 in Charcot-Marie-Tooth Disease Type 1A (CMT1A), called the PLEO-CMT-FU trial. The trial has been conducted for a total of 6 years, and the data is consistent with a long-term treatment benefit of PXT3003 in patients with mild-to-moderate CMT1A. The results indicate that PXT3003 has a good safety profile and shows a long-term treatment effect on the Overall Neuropathy Limitation Scale (ONLS), which measures functional motor disability. A group of 117 patients with mild-to-moderate CMT1A are still receiving treatment with the high dose of PXT3003 in the trial.