Pepgen Inc. is forging ahead with tests of PGN-EDODM1 in other territories after the U.S. FDA placed a partial hold on the Freedom2-DM1 phase II trial, a multiple ascending-dose, randomized, placebo-controlled experiment in myotonic dystrophy type 1 (DM1).

At the current pace of innovation in the U.S. rare disease space, developing and approving therapies for just half of the 10,000-plus known rare diseases would take more than 160 years, Bradley Campbell, president and CEO of Amicus Therapeutics Inc., recently told the Senate Committee on Aging.

In a boon for licensee Bristol Myers Squibb Co., Systimmune Inc.’s next-generation cancer drug, izalontamab brengitecan (iza-bren), hit both progression-free survival and overall survival endpoints in a phase III trial of Chinese patients with advanced triple-negative breast cancer.

A lot of distance lies between talking regulatory flexibility and actually being flexible. That message was driven home again after Uniqure NV disclosed in its latest earnings report March 2 that the U.S. FDA wants a sham-controlled study before it will consider approval of the company’s gene therapy AMT-130 in Huntington’s, a rare disease currently affecting about 41,000 people in the U.S.

Sanaregen Vision Therapeutics Inc. has received FDA clearance to conduct a phase I/II trial of SVT-001, an investigational cell therapy for individuals with familial drusen.

Ascendis Pharma A/S’ Yuviwel (navepegritide) gained U.S. FDA accelerated approval Feb. 27 for children 2 and older with the rare genetic bone growth disorder achondroplasia, also known as dwarfism, winning the company a rare pediatric disease priority review voucher

Uniqure NV is the latest firm to get caught between the FDA’s shifting demands for “gold standard” science and regulatory flexibility for rare disease therapies. The company disclosed in its latest earnings report that U.S. regulators are calling for a sham-controlled study before they will consider approval of gene therapy AMT-130 in Huntington’s disease, a requirement that could set the program back by two to three years and raises potential ethical issues.

In a boon for licensee Bristol Myers Squibb Co., Systimmune Inc.’s next-generation cancer drug, izalontamab brengitecan (iza-bren), hit both progression-free survival and overall survival endpoints in a phase III trial of Chinese patients with advanced triple-negative breast cancer.

The U.S. FDA’s expectations that its new default position of basing marketing authorization of novel drugs on one adequate, well-controlled trial may be overstated. In explaining the policy in a recent article in The New England Journal of Medicine, FDA Commissioner Marty Makary and CBER Director Vinay Prasad said they expect the initiative will create a “surge in drug development,” substantially reduce development costs and will speed drugs to market. While the initiative could reduce the time to the U.S. market, those expectations don’t take into consideration global norms and payer expectations.