Following late-stage studies in which Incyte Corp.'s topical ruxolitinib candidate significantly reduced skin inflammation and itch associated with atopic dermatitis (AD), the FDA has approved the medicine, making it the first and only topical JAK inhibitor approved in the U.S.
Little more than six months after filing a BLA for the antibody-drug conjugate (ADC) tisotumab vedotin in recurrent or metastatic cervical cancer, Seagen Inc. and Genmab A/S have secured an accelerated approval for the medicine. The green light for the co-developed product marks Seagen's third approved ADC and Genmab's first marketed therapy, though another medicine based on its Duobody technology platform recently won approval, too. The new cervical cancer drug, to be marketed as Tivdak, was approved for the treatment of adults experiencing disease progression on or after chemotherapy.
Shares of Protagonist Therapeutics Inc. (NASDAQ:PTGX) fell 62% to $17.53 on Sept. 17 after it reported finding malignant skin tumors in a mouse model test of its most advanced candidate, rusfertide for blood disorders. After the company notified the FDA, the regulator put the program on a clinical hold, leading dosing of patients in all ongoing trials of rusfertide to be halted for now. The development could impact Protagonist's ability to start phase III testing of the candidate in polycythemia vera (PV) early in 2022, as well as efforts to expand its development to a third indication beyond PV and hereditary hemochromatosis (HH) by the end of this year, as it has planned.
With the U.S. logging more than 4 million new COVID-19 cases in the past few weeks, federal purchasing of antibody cocktails from Regeneron Pharmaceuticals Inc. and Eli Lilly and Co. is continuing to grow. The government has placed orders for $2.94 billion worth of Regeneron's REGEN-COV (casirivimab and imdevimab) and about $330 million of Lilly's etesevimab to complement doses of bamlanivimab it previously purchased. Both antibody combinations, approved under FDA emergency use authorizations (EUAs), have been shown to reduce risk of hospitalization or death from COVID-19.
Abbvie Inc. and Regenxbio Inc. have announced a partnership to develop and commercialize RGX-314, a potential one-time gene therapy for the treatment of wet age-related macular degeneration (wet AMD), diabetic retinopathy and other chronic retinal diseases. Under the terms of the agreement, Abbvie will pay Regenxbio $370 million up front, plus up to $1.38 billion in additional development, regulatory and commercial milestones. The deal gives '314 – already the most advanced gene therapy in wet AMD – another potential edge against its nearest competitor, Adverum Biotechnologies Inc.’s ADVM-022.
Shares of antibody drug conjugate developer Mersana Therapeutics Inc. (NASDAQ:MRSN) fell 39.1% to $8.56 on Sept. 10 after the company disclosed a second death from pneumonitis in the ongoing phase I trial testing its antibody drug conjugate, upifitamab rilsodotin against tumor types likely to express the sodium-dependent phosphate transport protein NaPi2b, such as ovarian cancer.
Initial efforts at Humanigen Inc. to win an FDA emergency use authorization (EUA) for treating hospitalized COVID-19 patients with its monoclonal antibody, lenzilumab, have failed to gain the regulator's buy-in, sending company shares (NASDAQ:HGEN) down 47.3% to $7.97 on Sept. 9 after touching a 52-week low during the session, a reaction part of a volatile arc that has seen shares climb as high as $29.20 during the same time span.
Hillevax Inc., a company developing a vaccine to prevent moderate to severe acute gastroenteritis caused by norovirus infection, has raised $135 million in crossover financing to support further clinical development of the candidate, HIL-214.
Astellas Pharma Inc. has halted further dosing of the experimental X-linked myotubular myopathy (XLMTM) gene therapy AT-132 (resamirigene bilparvovec) after one participant in the ongoing Aspiro study experienced a serious adverse event (SAE) of abnormal liver function.
