Edgewise Therapeutics Inc. recently announced encouraging findings from the continued CIRRUS-HCM Phase 2 investigation into its innovative compound, EDG-7500. This medication, specifically formulated as an oral cardiac sarcomere modulator, is intended to address hypertrophic cardiomyopathy (HCM) by moderating initial contraction speed and mitigating cardiac relaxation issues, all without negatively affecting systolic function. The positive results have ignited significant market enthusiasm, leading to a notable increase in the company's stock value.
Edgewise Therapeutics' EDG-7500 Demonstrates Promising Results in Hypertrophic Cardiomyopathy Trial, Stock Soars
On Wednesday, December 24, 2025, Edgewise Therapeutics Inc. (NASDAQ: EWTX) experienced a significant boost in its stock value, with shares climbing by 17.96% to $25.65. This surge followed the release of updated data from the company's ongoing CIRRUS-HCM Phase 2 clinical trial for EDG-7500. Earlier this year, the company had reported initial positive outcomes from Part B (oHCM, n=17) and Part C (nHCM, n=12) of the study, which evaluated 50 mg and 100 mg fixed doses of the drug. Further reinforcing these findings, Edgewise also assessed a lower 25 mg fixed dose in an additional 4 oHCM and 10 nHCM participants across these trial parts.
The study observed clear evidence of clinical effectiveness in crucial HCM disease indicators. Importantly, EDG-7500 maintained a commendable safety profile throughout the trial. Researchers noted no clinically significant alterations in left ventricular ejection fraction (LVEF), nor any reductions below 50%, and no occurrences of atrial fibrillation (AF). These results indicate that EDG-7500 has a distinct LVEF profile when compared to other cardiac myosin inhibitors (CMIs). The comprehensive Part B and C cohorts have concluded their dosing phases, with a total of 43 individuals participating across all dosage groups.
Currently, CIRRUS-HCM Part D is underway, designed to delve deeper into exposure-response correlations and to optimize dosing strategies guided by biomarkers. This phase aims to lay the groundwork for Phase 3 trials and facilitate discussions with regulatory bodies. An interim safety analysis of 20 participants who completed 12 weeks of dosing in Part D (8 with oHCM and 12 with nHCM) reiterated the favorable safety and tolerability of EDG-7500. The consistent safety data, observed in both healthy volunteers and the CIRRUS-HCM trial, suggests EDG-7500's potential applicability across various HCM patient demographics.
Edgewise Therapeutics is on schedule to release comprehensive efficacy and safety data from Part D of the CIRRUS-HCM trial in the second quarter of 2026. The company is also actively preparing for the initiation of Phase 3 trials by the close of 2026. In a related development earlier this week, the U.S. Food and Drug Administration (FDA) granted approval to Cytokinetics Incorporated's (NASDAQ: CYTK) Myqorzo (aficamten) for symptomatic obstructive hypertrophic cardiomyopathy (oHCM), indicating a dynamic and competitive landscape in the treatment of this heart condition.
The promising data from Edgewise Therapeutics underscores the relentless pursuit of medical breakthroughs in treating complex heart conditions. As a market observer, it's inspiring to witness how scientific rigor and dedicated research can translate into tangible hope for patients and significant opportunities for investors. The careful progression through clinical trial phases, focusing on both efficacy and safety, highlights a responsible approach to drug development. The positive market response is a testament to the potential impact of EDG-7500, not just for the company's shareholders but, more importantly, for individuals living with hypertrophic cardiomyopathy, who may soon have a new, effective treatment option.