Peter Altman
Analyst · H.C
Thank you, Miranda and good afternoon to everyone on the call. This has been a big quarter for BioCardia as our clinical investigators have presented positive results from each of our three ongoing autologous and allogeneic cell therapy clinical trials to treat ischemic heart failure and chronic myocardial ischemia. In this call, we will share an update on these product candidates in the active clinical development. Our lead CardiAMP autologous cell therapy is targeted to treat ischemic heart failure of reduced ejection fraction, an enormous unmet clinical need. We now have results from three clinical trials; CA BMI, CA CTHFT [ph], and CardiAMP HF with the CardiAMP cells that support both the safety and therapeutic efficacy of these cells for patients having ischemic heart failure of reduced ejection fraction. Although we have seen positive signals of reduced mortality and reduced major adverse cardiac events in all patients treated in the most recent CardiAMP Heart Failure trial, the remarkable benefits in patients treated with elevated NT-proBNP, a well-established biomarker of active heart failure, is where we are focused today. Results in these patients shared late in the first quarter show a remarkable 86% relative risk reduction in heart death equivalents and a 24% relative risk reduction in non-fatal major adverse cardiac and cerebrovascular events. Our death equivalents include all-cause death, cardiac transplantation, and implantation of a left ventricular assist device to replace heart function. This is particularly exciting as therapies that are available today do not have a significant impact on mortality for these patients. And unfortunately, mortalities for these patients is still approximately 50% at five years. Further, the recent interim results in these patients show all clinical outcomes favor CardiAMP Cell Therapy, including improved quality of life as measured using the Minnesota Living with Heart Failure Questionnaire, reduction of NT-proBNP levels, greater six-minute walk test distance, and improved echocardiography parameters of left ventricular ejection fraction, left ventricular end-systolic volume, and left ventricular end-diastolic volume. Both the reduced heart death equivalents and improved quality of life outcomes demonstrated statistical significance, favoring therapy in the patients with elevated NT-proBNP. Our goal is to have final results available for both scientific presentation and for regulatory submission in the fourth quarter of 2024. There is an enormous ongoing activity by the BioCardia team to monitor patients enrolled in this study. As we already have more than 90% of the patient follow-up data that we will ultimately have in the final analysis, we don't expect the results to change significantly. The final results are expected to be provided to Japan's Pharmaceutical and Medical Device Agency as a key element of a submission for approval. Our previous consultations with Japan's Pharmaceutical and Medical Device Agency supported that if the data remains as good as it currently appears to be at the final analysis, they are willing to consider approval based on this data without requiring an additional clinical trial in Japan. Subsequent interactions and consultations with Japan's Pharmaceutical and Medical Device Agency are expected. A post-marketing study is already in active discussion with world-class heart failure cardiology and interventional cardiology leaders in Japan who attended our last consultation with the agency. We are thankful for their involvement. The confirmatory CardiAMP Heart Failure II trial in the United States is focused on the patients with elevated NT-proBNP. The trial was approved by FDA in December, activated in February, and approved for reimbursement by Medicare in March. We estimate that the Medicare reimbursement reduces the cost of doing this study by more than $5 million as we record payments from centers as a reduction in our R&D expense as these dollars are then paid back to centers to cover research costs for patient follow-up. This confirmatory trial has a greater than 90% power or statistical probability of success to meet the primary endpoint based on the CardiAMP Heart Failure trial interim results. Our world-class Executive Steering Committee and the distinguished cardiologists on our Data Safety Monitoring Board are continuing to support this program. We expect additional world-class heart failure clinicians to join our Executive Steering Committee soon. We are actively working with our heart failure network and leaders in cardiology to enable this study to be fully enrolled in two years when the first patient enrolled, with results being available in three years. This is an aggressive goal, but we feel that the experience and data that we have will enable this to be achieved. We are actively onboarding sites and this effort will accelerate in the months ahead. Our CardiAMP cell therapy trial for chronic myocardial ischemia or BCDA-02 is a Phase 3 multi-center randomized double-blinded controlled study intended to include up to 343 patients at up to 40 sites. The company roll-in cohort results were presented in a call last month, showing patients with refractory angina, demonstrating an average 107 second increase in exercise tolerance and an 82% reduction in angina episodes at the primary six-month follow-up endpoint compared to before receiving the study treatment. Planning for the randomized phase continues based on these positive results. Part of this planning includes utilizing the Medicare reimbursement in place for both the control and treatment arms of this investigational therapeutic study to offset the clinical costs. The company's CardiALLO allogeneic cell therapy for ischemic heart failure or BCDA-03 is a Phase 1/2 clinical trial program encompassing 69 patients. At the Technology and Heart Failure Therapeutics Meeting in March, it was reported that there have been no adverse events and follow-up in the first low-dose cohort patient enrolled. The CardiALLO heart failure study is intended to build on three previous trials of mesenchymal stem cells in ischemic heart failure that we have co-sponsored at BioCardia. This is a precision medicine study as we are focusing this therapy for the first time on patients who have elevated NT-proBNP and elevated high-sensitivity C-reactive protein, a marker of inflammation that has been correlated with responsiveness to immunomodulatory mesenchymal stem cells in a significant previous study. We intend the Phase 2 portion of the CardiALLO study to be performed in both the United States and in Japan, where it has potential to receive conditional approval based on this one trial. Our biotherapeutic delivery partnering business focuses on long-term partnerships, where BioCardia participates meaningfully in the value created. In March 2024, we announced a biotherapeutic delivery partnership with StemCardia to advance StemCardia's investigational pluripotent stem cell product candidate for the treatment of heart failure, initially through a Phase 1/2 clinical study. In May of 2024, biotherapeutic delivery partner, CellProthera, announced that they would have results this week at the European Society of Cardiology Heart Failure Meeting in Lisbon from their Phase 1/2 cell therapy study in post-myocardial infarction. Today, I am delighted to congratulate CellProthera on the positive clinical results they have just announced. In summary, with our three cardiovascular biotherapeutic clinical programs and our biotherapeutic delivery partnering, we have multiple pathways to succeed as a business and provide significant shareholder returns on investment. We are aiming for approval of the first therapy based on our lead program in Japan as early as 2025, which could be followed in the USA soon thereafter. I will now pass the call to David McClung, our CFO, who will review our Q1 2024 financial results. David?