CYTK Cytokinetics Inc

Cytokinetics, Incorporated (Nasdaq: CYTK) today announced two presentations at the 2024 American College of Clinical Pharmacology (ACCP) Annual Meeting in Bethesda, MD from September 8, 2024 – September 10, 2024.

Title: A First-in-Human, Single & Multiple Ascending Dose Study of CK-4021586, A Novel Cardiac Myosin InhibitorPresenter: Justin Lutz, Pharm. D., Ph.D., Senior Director, Clinical Pharmacology, CytokineticsDate: September 8, 2024Session Title: Opening Reception, Exhibits & Poster Session 1Topic: Pharmacokinetics (Including PopPK, ADME, Biopharmaceutics)Poster Number: 074Session Time: 5:00-7:00 PM ETLocation: Grand Ballroom E-H

Title: Clinical Evaluation of the Effect of Aficamten on QT/QTc Interval in Healthy ParticipantsPresenter: Polina German, Pharm. D., Executive Director, Clinical Pharmacology, CytokineticsDate: September 8, 2024Session Title: Opening Reception, Exhibits & Poster Session 1Topic: General Drug Development Strategy & PracticePoster Number: 022Session Time: 5:00-7:00 PM ETLocation: Grand Ballroom E-H

About Cytokinetics

Cytokinetics is a late-stage, specialty cardiovascular biopharmaceutical company focused on discovering, developing and commercializing muscle biology-directed drug candidates as potential treatments for debilitating diseases in which cardiac muscle performance is compromised. As a leader in muscle biology and the mechanics of muscle performance, the company is developing small molecule drug candidates specifically engineered to impact myocardial muscle function and contractility. Cytokinetics is preparing for regulatory submissions for aficamten, its next-in-class cardiac myosin inhibitor, following positive results from SEQUOIA-HCM, the pivotal Phase 3 clinical trial in obstructive hypertrophic cardiomyopathy which were published in the New England Journal of Medicine. Aficamten is also currently being evaluated in MAPLE-HCM, a Phase 3 clinical trial of aficamten as monotherapy compared to metoprolol as monotherapy in patients with obstructive HCM, ACACIA-HCM, a Phase 3 clinical trial of aficamten in patients with non-obstructive HCM, CEDAR-HCM, a clinical trial of aficamten in a pediatric population with obstructive HCM, and FOREST-HCM, an open-label extension clinical study of aficamten in patients with HCM. Cytokinetics is also developing omecamtiv mecarbil, a cardiac muscle activator, in patients with heart failure. Additionally, Cytokinetics is developing CK-586, a cardiac myosin inhibitor with a mechanism of action distinct from aficamten for the potential treatment of HFpEF.

For additional information about Cytokinetics, visit www.cytokinetics.com and follow us on X, LinkedIn, Facebook and YouTube.

Forward-Looking Statements

This press release contains forward-looking statements for purposes of the Private Securities Litigation Reform Act of 1995 (the "Act"). Cytokinetics disclaims any intent or obligation to update these forward-looking statements and claims the protection of the Act's Safe Harbor for forward-looking statements. Examples of such statements include, but are not limited to, statements relating to any of our other clinical trials, statements relating to the potential benefits of aficamten, CK-586 or any of our other drug candidates. Cytokinetics' research and development activities; the design, timing, results, significance and utility of preclinical and clinical results; and the properties and potential benefits of Cytokinetics' other drug candidates. Such statements are based on management's current expectations, but actual results may differ materially due to various risks and uncertainties, including, but not limited to, potential difficulties or delays in the development, testing, regulatory approvals for trial commencement, progression or product sale or manufacturing, or production of Cytokinetics' drug candidates that could slow or prevent clinical development or product approval; Cytokinetics' drug candidates may have adverse side effects or inadequate therapeutic efficacy; the FDA or foreign regulatory agencies may delay or limit Cytokinetics' ability to conduct clinical trials; Cytokinetics may be unable to obtain or maintain patent or trade secret protection for its intellectual property; standards of care may change, rendering Cytokinetics' drug candidates obsolete; and competitive products or alternative therapies may be developed by others for the treatment of indications Cytokinetics' drug candidates and potential drug candidates may target. For further information regarding these and other risks related to Cytokinetics' business, investors should consult Cytokinetics' filings with the Securities and Exchange Commission.

CYTOKINETICS® and the CYTOKINETICS and C-shaped logo are registered trademarks of Cytokinetics in the U.S. and certain other countries.

Contact:Cytokinetics Diane WeiserSenior Vice President, Corporate Affairs(415) 290-7757