Dr. Jennifer Buell
Analyst · H.C. Wainwright. Your line is now open
Thank you very much, Zack, and thank you all for joining us today. 2024 was a defining year for MiNK Therapeutics. The year in which we executed on our strategic vision, strengthened our leadership, advanced our clinical programs and expanded partnerships that position us for significant impact in the year ahead. Our focus remains unwavering to bring the most scalable, durable and effective allogeneic iNKT cell therapy to patients with solid tumors and immune driven diseases. In the fourth quarter, we announced an important addition to our leadership team and we welcomed Dr. Robert Kadlec to our Board of Directors. This is a substantial addition for our company. Dr. Kadlec is a renowned leader in biodefense and pandemic preparedness. He’s the former head of ASPR at the Department of Health and Human Services, and he was instrumental in Operation Warp Speed Initiative. His expertise in public health strategy and medical countermeasures adds tremendous strategic depth as we explore the applications of our iNKT platform in biodefense, pandemic preparedness and infectious diseases. At the same time, we also announced the departure of our general counsel, Robert or Bob Foster. Bob has transitioned to a leading role in the Department of Health and Human Services as the Chief Counsel for Food, Research and Drugs in our new administration. We are deeply grateful for Bob’s commitment, contributions and integrity throughout his tenure at MiNK and we wish him continued success in his service to our country. On the business side, we made strong progress on multiple fronts. In addition to strengthening our leadership, we expanded our innovation toolkit. In the fourth quarter, we entered a collaboration with Autonomous Therapeutics to combine their encrypted RNA technology with our iNKT cell therapy. This collaboration is highly strategic. By integrating Autonomous’ precision encoded RNA platform with our cell therapy candidates like 797 and our FAP-CAR-iNKT, we aim to create next generation treatments for metastatic cancer. The idea is to target and eliminate metastatic tumor cells with greater precision. In preclinical models and in the clinic, we’ve already demonstrated that iNKT cells have shown that they can effectively attack tumors. And for instance, in very difficult to treat metastatic colorectal cancer models and in second-line gastric cancer, by arming these cells with encoded RNA payloads that activate only in the tumor environment, we hope to spare healthy cells while delivering potent tumor-killing signals. This partnership exemplifies how we’re leveraging external innovation to amplify the power of our iNKT platform and can open entirely new avenues for treating solid tumor cancers. In 2024, we executed across our clinical programs, expanding data of iNKT cell therapy in solid tumors, respiratory distress and immune-driven diseases. At major conferences throughout the course of this year, including the inaugural AACR IO, ASCO GI and SITC, we presented data demonstrating that 797 enhances immune activation, expands the benefit of checkpoint inhibitors and bispecific engagers, and overcomes resistance in some of the most challenging cancers, including gastric cancer. At the AACR IO Conference just this past February, we presented new translational data from our ongoing Phase 2 study, which is first of its kind in delivering an allogeneic iNKT cell therapy in refractory gastroesophageal cancer. Our data demonstrated powerful synergy between our allo-iNKT cells, important first-of-kind checkpoint inhibitors, including botensilimab and balstilimab, and standard chemotherapy. This combination led to robust immune reactivation in otherwise unresponsive tumors, essentially taking an immune desert and turning that immune desert hot, and we’ve demonstrated that pathologically and immunologically in the data we presented at AACR IO. We also reported that the addition of 797 led to higher interferon-gamma levels, increased T cell infiltration and strong antigen-presenting cell engagement. These critical biomarkers are known to correlate with better, more durable clinical responses, further validating the role of iNKT cells in driving immune reactivation. Importantly, these seminal observations revealed the importance of optimal sequencing. And in fact, the strongest responses were observed when we took our cell therapy, 797, and we combined it with checkpoint inhibitors before applying standard-of-care immunosuppressive chemotherapy. This sequencing led to the most significant immune expansion and powerful peripheral memory T cell activation, highlighting the value of early allo-iNKT induction as a key driver of therapeutic benefits. These findings underscore the unique ability of iNKT cells to intensify immune activity, reinvigorate memory T cells and reshape the tumor microenvironment, offering a scalable allogeneic solution with global patient access. We’ll be looking forward to sharing additional clinical updates later this year with the clinical outputs from this program. In addition, we’re advancing our novel pipeline, including our PRAME-TCR program and our next-gen cell therapeutics. We’ve demonstrated with our PRAME-TCR iNKTs that targeting intracellular tumor antigens previously unreachable by conventional therapies can actually demonstrate very high specificity and potent tumor killing. At the SITC 2024 Conference in November, we showed that 797 worked synergistically with checkpoint inhibitors and bispecific engagers. Basically, when used together, the anti-tumor activity was significantly enhanced beyond what either of those therapies, checkpoints or bispecific engagers can achieve alone. This builds on my earlier statement, demonstrating the clinical observations of 797 in combination with checkpoint inhibitors in gastric cancer. This is important because it suggests that allo-iNKTs can be added to existing cancer treatments to overcome resistance and boost efficacy, potentially turning non-responders into responders. At the same conference at SITC, we reported on our PRAME-targeted TCR iNKT program, which is one of our next-generation engineered products, that the PRAME tumor antigen commonly expressed in prevalent tumors like lung, ovarian, melanoma, sarcoma, has been challenging to treat and has evaded traditional T-cell therapies. Our preclinical results show that PRAME can seek and destroy PRAME-positive tumor cells with precision. This suggests a promising solution for treating a range of solid tumors that express PRAME. We’re encouraged by these data, and they showcase how adaptable and potent our platform can be. Now, there’s something that’s really quite important that these cells can deliver. We’ve shared some of this data with you previously. Beyond oncology, we continue to advance AgenT-797 in immunology and inflammatory conditions. The most advanced program is our clinical program in patients with severe acute respiratory distress. This remains a field with significant unmet need and no approved therapies. Results from our Phase 1 study published in Nature Communications and more recently presented at the American Thoracic Society annual meeting showed that 797 achieved an 80% survival rate in patients who were on the most severe form of life support, VV ECMO, and that compares to just 10% of in-hospital controls. These findings, again, underscore the potential of iNKTs in addressing high-impact health challenges. And very importantly, we also noticed that these cells prevented secondary infections, fungemia, bacteremia, that often cause mortality in the ICU setting. That’s a really critical part of the story. As we begin to continue our expansion in INI, we are looking to announce our externally supported program in acute Graft versus Host Disease or GvHD. We planned our Phase 1 trial of 797 in patients undergoing allogeneic bone marrow transplant. This trial is particularly valuable as it will be conducted predominantly with external support to offset our development costs. We have been awarded probable funding by the National Institute of Allergy and Infectious Diseases or NAIAD (sic) [NIAID], to explore the activity of 797 in acute GvHD. Now, I say probable funding and that was a specific language that was leveraged by the government agencies, and we will await the evolution of the administration and look forward to announcing more formally the funding granted by this agency. Acute GvHD is severe and potentially life-threatening complication of transplant, and current options are limited. Our goal is to use immune-modulating iNKT cells to prevent and treat GvHD by dialing down the harmful donor-derived T cell responses that cause it without compromising the graft cancer-fighting benefits. The Phase 1 study will primarily assess safety, determine an optimal dose of 797 and explore the clinical benefits in these patients. Given 797’s favorable safety profile in early trials, we’re optimistic that it will be well-tolerated in the transplant setting as well. The trial is being submitted to local and national regulators, and we expect the dose this year. Before I hand the call over to Christine, I want to emphasize how these pieces come together for MiNK. The leadership updates, the partnership with Autonomous, the clinical progress both in oncology and INI, or inflammatory and immunologic diseases like respiratory distress and GvHD, are all part of our strategy to execute efficiently while expanding the impact of our iNKT platform. We’re entering 2025 with strong momentum, a differentiated technology, provocative clinical data, and a growing network of experts and partners, and a clear plan to reach our next value inflection point. We remain committed to our mission of delivering the cell therapy to patients and we’re doing so with an eye on smart resource management and strategic growth opportunities. I’ll now turn the call over to Christine.