WAYNE, PA — XyloCor Therapeutics, Inc., a clinical‑stage biopharmaceutical company, recenlty presented results from the Phase 2 portion of its Phase 1/2 clinical trial (EXACT) of its lead gene therapy candidate XC001 (encoberminogene rezmadenovec) for refractory angina at the European Society of Cardiology (ESC) Congress 2023. During the ESC Congress poster session, Dr. Thomas Povsic, Principal Investigator of the EXACT trial, presented the primary six-month outcome data from the recently completed EXACT trial, which demonstrated that treatment with XC001 resulted in improvements across all key efficacy endpoints. The findings underscore its strong potential as a novel therapeutic approach for the treatment of this disabling condition.
XC001 is a one‑time gene therapy designed to reduce ischemic burden by creating new blood vessels in the heart through the local expression of multiple vascular endothelial growth factor (VEGF) isoforms. In the Phase 2 portion of the EXACT trial, 32 patients with class II-IV angina were dosed with the maximal dose of XC001 through transepicardial delivery (direct administration to the heart). XC001 met all of its safety and exploratory objectives and showed potential transformative benefits for the patient population. Among the notable topline results presented at the ESC Congress 2023 included:
- VEGF gene therapy with XC001 administered via minimally invasive transepicardial delivery was generally well tolerated.
- There were no serious adverse events related to the drug or unexpected serious adverse events related to XC001 administration.
- Patients demonstrated improvements in key efficacy measures most notably total exercise time, time to the development of ST-depression (an objective measure of ischemia), angina frequency, and reduction in ischemic burden as measured by Positron Emission Tomography (PET) imaging.
- The six-month results showed that XC001 achieved a clinically meaningful biologic effect, warranting further study in larger randomized clinical trials.
“Refractory angina is a debilitating and chronic condition that is growing in prevalence and these patients have exhausted all treatment options,” said Thomas Povsic, M.D., Ph.D., Professor of Medicine, Duke University School of Medicine and National Principal Investigator for the EXACT study. “The six-month results from the EXACT trial – which have now been sustained out to 12 months – demonstrate that gene therapy with XC001 has the potential to be safely administered while improving quality of life for these cardiac patients.”
“The clinical research results presented at ESC Congress 2023 highlight XyloCor’s continuing efforts to transform the treatment paradigm in refractory angina through the promise of one-time gene therapy,” said Al Gianchetti, President and CEO of XyloCor. “We are excited to share data that provides evidence for angiogenesis and a promising efficacy and tolerability profile for XC001. These results strongly support our continued development of this novel therapeutic approach.”
Further background and results presented in the ESC Congress 2023 poster session titled “Angiogenic gene therapy for refractory angina: Results of the Epicardial delivery of XC001 Gene Therapy for Refractory Angina Coronary Treatment (EXACT) Phase 2 Trial can be found here.
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