Taysha Gene Therapies Inc.’s stock (NASDAQ:TSHA) struggled Feb. 1 following the U.S. FDA’s recommendation that the company dose more patients in a double-blind, placebo-controlled study of TSHA-120 for the ultra-rare indication giant axonal neuropathy.
After long years of painstaking work, the commercialization of cell and gene therapies picked up pace in 2022, with multiple approvals. More progress is expected in 2023, with several firsts in the offing and products for larger patient populations reaching the market.
Once a rarity, billion-dollar deals are now coming fast and furious. Now three have appeared in only a few days. Gene therapy developer Voyager Therapeutics Inc. and Neurocrine Biosciences Inc. continued a longstanding partnership by agreeing to develop treatments for neurological diseases and for three new programs with rare CNS targets. Cytomx Therapeutics Inc. and Moderna Inc. entered a deal worth a potential $1.24 billion to Cytomx for generating and developing treatments in oncology and non-oncology. In the third deal, Royalty Pharma plc acquired an interest in Ionis Pharmaceuticals Inc.'s royalty in Biogen Inc.'s Spinraza (nusinersen) and Novartis AG's pelacarsen for up to $1.125 billion.
The eyes certainly have it. There are plenty of ocular gene therapies being studied in a crowded field and now there is a new one as Perceive Biotherapeutics Inc. has closed on a $78 million series B financing.
Eli Lilly and Co., through its wholly owned subsidiary Prevail Therapeutics Inc., is delving more deeply into gene therapies. In a new collaboration, Prevail will use privately held Capsida Biotherapeutics Inc.’s adeno-associated virus engineering platform, coupling the tech with Prevail’s gene therapies to target causes of CNS diseases.
Little more than a month after the U.S. FDA approved the first gene therapy for adults with hemophilia B, Uniqure NV’s Hemgenix, strong phase III data have come from Pfizer Inc. The Pfizer results show fidanacogene elaparvovec, a vector containing an AAV capsid and a high-activity human coagulation factor IX (FIX) gene for treating adult men with moderately severe to severe hemophilia B, hit the primary endpoint in the phase III Benegene-2 study. The one-time therapy is designed to allow those living with hemophilia B to be able to produce FIX instead of receiving regular, ongoing doses of exogenous FIX.
Shares in Dutch RNA editing specialist Proqr Therapeutics NV (NASDAQ:PRQR) surged by as much as 88% Dec. 22 news that Eli Lilly and Co. is substantially expanding an existing preclinical alliance. It is paying Proqr an initial $75 million, which consists of an up-front payment and equity investment, a potential $50 million option fee should it decide to widen the scope of the partnership even further, and up to $2.5 billion in new research, development, and commercialization milestones. Proqr would also receive royalties on any resulting product sales.
Ferring Pharmaceuticals A/S has notched another U.S. FDA approval, this time for a bladder cancer treatment, Adstiladrin (nadofaragene firadenovec). The non-replicating adenovirus vector-based gene therapy’s approval comes only weeks after the FDA’s Nov. 30 approval of the privately held company’s Rebyota (fecal microbiota, live), the first fecal microbiota treatment in the U.S. Adstiladrin is another landmark, as the first FDA-approved gene therapy to treat high-risk, non-muscle-invasive bladder cancer. Saint-Prex, Switzerland-based Ferring said it anticipates the product becoming commercially available in the U.S. in the second half of 2023.
After gaining U.S. FDA priority approval for the first gene therapy to treat hemophilia B, CSL Ltd. reported long-term data from the pivotal HOPE-B trial that showed a single infusion of Hemgenix (etranacogene dezaparvovec-drlb) generated elevated and sustained mean factor IX levels and reduced the rate of annual bleeding. Presented at the American Society of Hematology (ASH) annual meeting on Dec. 10, data showed 24-month results reinforced the safety of treatment, with no serious treatment-related adverse effects.
The U.S. FDA gave its go-ahead for Hemgenix (etranacogene dezaparvovec-drlb), Uniqure NV’s one-time gene therapy – the first for the treatment of adults 18 and older living with hemophilia B. Patients have been waiting “maybe beyond two decades” for a new therapy, Uniqure CEO Matthew Kapusta said. Hemgenix emerged from pioneering work by St. Jude Children’s Research Hospital and the University College London.
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