The appointment May 6 of Vinay Prasad as the head of the U.S. FDA’s Center for Biologics Evaluation and Research (CBER) “bodes poorly” for Sarepta Therapeutics Inc.’s development-stage pipeline, said Wainwright analyst Mitchell Kapoor – and Wall Street reflected as much, as the stock (NASDAQ:SRPT) ended that day down 26.6% vs. an XBI drop of 6.6% – this ahead of the after-hours earnings disclosure that pushed the Cambridge, Mass.-based firm down even farther by more than another 20%, with the XBI unchanged.

Aldeyra Therapeutics Inc. is making another run at U.S. FDA clearance for reproxalap in dry eye disease (DED) after nailing the primary endpoint in a phase III randomized, double-masked, vehicle-controlled dry eye chamber trial of 0.25% ophthalmic solution.

PTC Therapeutics Inc. CEO Matthew Klein said the firm “achieved all we set out to [achieve] in phase II” with PTC-518 in Huntington’s disease (HD), but it wasn’t enough to excite Wall Street, as some questioned whether the level of associations between trial findings and efficacy would appease the U.S. FDA. Shares (NASDAQ:PTCT) ended May 5 at $40.65, down $9.30, or 18.6%. Warren, N.J.-based PTC rolled out the most recent data from the Pivot-HD effort in stage 2 and stage 3 HD with PTC-518, an oral, centrally as well as peripherally distributed huntingtin (HTT) pre-mRNA splicing modifier.

Wall Street immediately set to weighing the long-term import of Cytokinetics Inc.’s regulatory delay with aficamten, but the short-term impact was evident, as shares (NASDAQ:CYTK) dipped to close May 2 at $37.35, a loss of $5.57 or 13%.

Clinical results offered at the recent meeting of the American Urological Association in Las Vegas signal that better treatments may lie ahead for non-muscle invasive bladder cancer.

The intriguing VEGFxPD-1 bispecific antibody space gained oomph with phase III results disclosed April 23 by Akeso Pharmaceuticals Inc. related to Harmoni-6, testing ivonescimab in combination with platinum-based chemotherapy compared with Tevimbra (tislelizumab, Beigene Ltd.), a PD-1 inhibitor also paired with platinum-based chemo in patients with locally advanced or metastatic squamous non-small-cell lung cancer irrespective of PD-L1 expression. Those data were followed by a green light from the U.S. FDA April 24 for marketing the PD-1 monoclonal antibody penpulimab in combination with cisplatin or carboplatin and gemcitabine for the first-line treatment of adult recurrent or metastatic non-keratinizing nasopharyngeal carcinoma.

Another complete response letter from the U.S. FDA for Regeneron Pharmaceuticals Inc.’s age-related macular degeneration (AMD) therapy Eylea (aflibercept) – along with disappointing sales of the VEGF inhibitor – dented shares (NASDAQ:REGN) by $41.95. They closed April 29 at $568.91, having traded as low as $542.44 during the day.

The biggest M&A activity of the year arrived in the form of Merck KGaA’s earlier-disclosed agreement to buy Springworks Therapeutics Inc. for $47 per share in cash, which represents an equity value of about $3.9 billion and an enterprise value of $3.4 billion, based on Stamford, Conn.-based Springworks’ cash in the bank as of the end of last year.

The intriguing VEGFxPD-1 bispecific antibody space gained oomph with phase III results disclosed April 23 by Akeso Pharmaceuticals Inc. related to Harmoni-6, testing ivonescimab in combination with platinum-based chemotherapy compared with Tevimbra (tislelizumab, Beigene Ltd.), a PD-1 inhibitor also paired with platinum-based chemo in patients with locally advanced or metastatic squamous non-small-cell lung cancer irrespective of PD-L1 expression. Those data were followed by a green light from the U.S. FDA April 24 for marketing the PD-1 monoclonal antibody penpulimab in combination with cisplatin or carboplatin and gemcitabine for the first-line treatment of adult recurrent or metastatic non-keratinizing nasopharyngeal carcinoma.

Watchers of the percolating myasthenia gravis space are waiting eagerly for data from Dianthus Therapeutics Inc.’s phase II Magic study testing DNTH-103, an active C1s inhibitor, compared to placebo in patients with anti-AChR-positive generalized disease.