Cytokinetics Inc. scored U.S. FDA marketing clearance Dec. 19 for Myqorzo (aficamten) 5-mg, 10-mg, 15-mg, and 20-mg tablets to improve functional capacity and symptoms in adults with symptomatic obstructive hypertrophic cardiomyopathy (oHCM). Shares of the South San Francisco-based firm rose 4.6%, or $2.88, on Dec. 22 to close at $65.60.
Word Sept. 4 from Agios Pharmaceuticals Inc. that the U.S. FDA extended the PDUFA date for the sNDA related to Pyrukynd (mitapivat), after the Cambridge, Mass.-based firm submitted a proposed risk evaluation and mitigation strategy (REMS), drew Wall Street’s attention to the regulatory approach.
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%.
Positive data from two studies boosted Edgewise Therapeutics Inc.’s market share and elevated analyst enthusiasm for the company and its treatment of obstructive hypertrophic cardiomyopathy. Top-line data from the phase I and phase II studies of EDG-7500 in treating the genetic disease that results in thickened heart muscles showed the therapy was well-tolerated in healthy volunteers and produced meaningful improvements in those with the disease.
Cytokinetics Inc. CEO Robert Blum said his firm chalked “a watershed moment” during last weekend’s congress of European Society of Cardiology (ESC) in London, where further mid- and late-stage data were disclosed with the heart drug aficamten, a myosin inhibitor. South San Francisco-based Cytokinetics rolled out six presentations, including two late breakers, with four concurrent publications in medical journals.
With one approved myosin inhibitor on the market and another coming up fast, researchers such as those at Tenaya Therapeutics Inc. are casting for new strategies to treat hypertrophic cardiomyopathy (HCM).
Cytokinetics Inc. received a slightly last minute Christmas gift in the form of positive top-line data from the pivotal phase III study of aficamten in treating symptomatic obstructive hypertrophic cardiomyopathy.
The U.S. FDA issued Cytokinetics Inc. a complete response letter (CRL) for omecamtiv mecarbil, branding the clinical evidence behind it as not “persuasive” enough to establish its effectiveness for reducing the risk of heart failure events and cardiovascular death. The company is developing the drug as an add-on therapy for patients with worsening heart failure who remain at high risk for heart failure events and hospitalization.
As the Feb. 28, 2023 PDUFA date for the compound nears, Cytokinetics Inc. CEO Robert Blum insisted that his firm is not mulling withdrawal of the marketing application for heart failure drug omecamtiv mecarbil, nor is the company now considering another study, after an unfavorable vote on the drug Dec. 13 by the U.S. FDA’s Cardiovascular and Renal Drugs Advisory Committee.
