Core Viewpoint - Keros Therapeutics is discontinuing the development of cibotercept to focus on its key clinical program, KER-065, which is aimed at treating Duchenne muscular dystrophy (DMD) [1][2][4] Strategic Realignment - The company will cease all internal development activities related to cibotercept following the termination of its development in pulmonary arterial hypertension (PAH) due to safety and efficacy data from the TROPOS Phase 2 clinical trial [2] - Keros is reallocating resources to enhance the development of KER-065, which has shown promising results in initial clinical trials [1][4] Leadership Changes - Keros announced several transitions in its Board of Directors and leadership to support its streamlined operational structure [3][5] - Jasbir S. Seehra, Ph.D., will take on the additional role of President while stepping down as Chair of the Board, with Jean-Jacques Bienaimé appointed as the new Chair [5] - Christopher Rovaldi will leave the company, and Lorena Lerner, Ph.D., will be promoted to Chief Scientific Officer [5] Clinical Development Plans - Keros plans to initiate a Phase 2 clinical trial for KER-065 in patients with DMD in the first quarter of 2026, pending positive regulatory interactions [4] - The company has reported initial topline results from the Phase 1 clinical trial of KER-065, achieving key objectives related to safety, tolerability, pharmacokinetics, and pharmacodynamics [4] Financial Results - Keros has released its financial results for the second quarter ended June 30, 2025, which can be accessed on its website [6]

Core Viewpoint - Keros Therapeutics has decided to discontinue the development of cibotercept for pulmonary arterial hypertension (PAH) following safety concerns and will undergo corporate restructuring to align with strategic priorities [1][3][5]. TROPOS Trial Results - The TROPOS trial was a Phase 2 clinical trial evaluating cibotercept in combination with background therapy for PAH, which was halted due to observed adverse events, specifically pericardial effusions [2][7]. - The company voluntarily stopped dosing in all treatment arms of the trial after safety reviews indicated new adverse events [2]. Corporate Restructuring - Keros plans to reduce its workforce by approximately 45%, resulting in a total of 85 full-time employees, which is expected to yield annualized cost savings of about $17 million [5][6]. - The restructuring is aimed at aligning operations with ongoing development programs and maximizing stockholder value [6]. Future Development Strategy - The company will evaluate the potential development of cibotercept for other indications after completing a strategic alternative review process [4][6]. - Keros is also exploring various strategic alternatives, including potential sale or business combinations, continued investment in its pipeline, and returning excess capital to stockholders [6]. Company Overview - Keros Therapeutics focuses on developing therapeutics targeting disorders linked to dysfunctional signaling of the TGF-ß family of proteins, with lead candidates including KER-065 for neuromuscular diseases and elritercept for cytopenias [8].