Nataliya Agafonova
Analyst · Boobalan Pachaiyappan from ROTH Capital Partners
Thank you, Steve, and good afternoon, everyone. As Steve mentioned, our HLHS program is the primary focus for us, addressing an area of clear unmet medical need. ELPIS II, our Phase II clinical trial evaluating the potential of laromestrocel in infants with HLHS is nearing completion. Enrollment of 40 patients was completed in June of last year. Top line results from the ELPIS II trial are anticipated in August 2026. We recently completed a constructive Type C meeting with the FDA on the laromestrocel development program in HLHS. In the meeting, the FDA acknowledged that HLHS is a rare disease associated with significant morbidity and mortality with a high unmet medical need for safe and effective therapies, but also asserted that the primary endpoint of right ventricular ejection fraction in the ELPIS II trial is not an appropriate endpoint to demonstrate efficacy. While Longeveron agreed with the FDA regarding the insufficiency of RVEF as the primary endpoint and was prepared to discuss other potentially appropriate endpoints sufficient to demonstrate efficacy, the FDA indicated that given the interim analysis mandated and conducted by the National Institute of Health, NIH, during the trial, to which the company was and remain blinded, a new primary endpoint could not be agreed while the trial is still ongoing. Without an agreed upon primary endpoint sufficient for efficacy, the FDA no longer refers to the ELPIS II trial as pivotal, as had been specifically discussed with the FDA in the company's Type C meeting in 2024. Nevertheless, the FDA expressly agreed that it is willing to meet with Longeveron again when the ongoing ELPIS II study is completed to discuss the study results and align on a potential path forward. The FDA further indicated that only the most objective measures, including all-cause mortality, cardiac transplant-free survival, event of cardiac transplantation and well-defined major adverse cardiac events, MACE, could be informative of efficacy in ELPIS II. And in that regard, the company is capturing all of these measures in ELPIS II along with some additional key measures to support an efficacy determination. The company intends to submit to the FDA a sponsored statistical analysis plan, or SAP, for ELPIS II for the FDA's review and approval and remain optimistic that the trial results and other available evidence will be sufficient to support filing a biological license application, BLA, following the readout of top line results of the ELPIS II data, which, as I mentioned earlier, are anticipated in August of this year. We look forward for sharing the results of the ELPIS II clinical trial when they are available. Switching over to Pediatric Dilated Cardiomyopathy or PDCM. This is a rare pediatric cardiovascular disease in which the muscles and one of the -- more of the heart chambers become enlarged or stretched, dilated, with nearly 40% of children with PDCM requiring a heart transplant or dying within 2 years of diagnosis. Our investigational new drug IND application for laromestrocel as a potential treatment for PDCM became effective in July 2025. This IND allows advancement directly into a single Phase II registrational clinical trial, reflecting the serious nature of this rare pediatric disease and the significant unmet medical need. We currently anticipate planning and preparation for the study in 2026 with potential initiation of the study in 2027. I will hand the call over to Lisa Locklear, our Chief Financial Officer. Lisa?