Chiesi Group’s idebenone faced a regulatory setback last month after the U.S. FDA issued a complete response letter (CRL) to the company’s NDA for Leber hereditary optic neuropathy (LHON), a rare inherited disorder that causes sudden vision loss.But a chance missed for Chiesi may be an opportunity for gene therapies, including Gensight Biologics SA’s lenadogene nolparvovec (Lumevoq; GS-010).

It’s déjà vu all over again for Aldeyra Therapeutics Inc., which disclosed its third complete response letter (CRL) for dry eye disease candidate reproxalap, with the U.S. FDA citing a lack of substantial and consistent evidence of efficacy.

The regulatory clouds that have been darkening the U.S. FDA landscape of late for Uniqure NV’s gene therapy AMT-130 in Huntington’s disease may be parting a bit with the announced departure of Vinay Prasad as director of the agency’s CBER at the end of April.

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.

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.

Elevar Therapeutics Inc. appointed Kim Dong-gun (DG) as CEO Jan. 29, as the company focuses on post-NDA strategies for lirafugratinib in bile duct cancer, and the twice-rejected rivoceranib-camrelizumab combination for liver cancer.

It’s not often that disclosure of a complete response letter (CRL) causes a company’s share price to rise, but that was case for Aquestive Therapeutics Inc., which saw its stock (NASDAQ:AQST) rise 39% to close Feb. 2 at $4.10 on news the U.S. FDA has declined – for now – to approve the NDA for Anaphylm (dibutepinephrine), delaying the commercial entry of what could be the first oral alternative to Epipen.

Elevar Therapeutics Inc. appointed Kim Dong-gun (DG) as CEO Jan. 29, as the company focuses on post-NDA strategies for lirafugratinib in bile duct cancer, and the twice-rejected rivoceranib-camrelizumab combination for liver cancer.