Jim Dentzer
Analyst · Jones Research. Please go ahead with your question
Thank you, Craig. Good afternoon, everyone, and welcome to Curis' second quarter earnings call. Every day at Curis, we strive to develop the next generation of first-in-class cancer therapies that meaningfully improve and extend patients' lives. We have several updates for you this quarter. First, as we've noted previously, the path of drug development is seldom a straight line, and the second quarter began with FDA placing a partial clinical hold on our TakeAim studies in leukemia and lymphoma in April. We're having productive discussions with the agency to bring these discussions to a resolution as quickly as possible. Second, we are delighted to announce that we have appointed a new CFO, which I'll talk about more in a minute. Third, the second quarter also saw several positive presentations on emavusertib at ASCO and EHA, both by our internal team at Curis and by several of our partners in academia with whom we are expanding the frontiers of IRAK4 research. These presentations included the first data from the combination arm of the TakeAim lymphoma study, as well as additional data in solid tumors and novel discoveries that are deepening our understanding of IRAK4 biology. In short, we are encouraged that in emavusertib, we have a drug that works as a single agent in exactly the places our research predicted. To start our update tonight, I'd like to welcome Diantha Duvall, who is joining the Curis team as our new CFO. Diantha began her career with PricewaterhouseCoopers and, over the last 20 years, has built an impressive track record of financial leadership at Merck, Biogen, Bioverativ and Genocea. We're delighted to have such a well-respected industry veteran join the team. I'd also like to take this opportunity to thank Bill Steinkrauss. He has been a key leader on the executive team at Curis, and we wish him all the best in his future endeavors. Turning now to our pipeline and our lead asset, emavusertib, our first-in-class program specifically designed to target IRAK4 and FLT3. Emavusertib is currently being evaluated in three clinical studies. First, the TakeAim leukemia study, a Phase 1/2 study with both monotherapy and combination arms for patients with relapsed or refractory acute myeloid leukemia, or AML, and high-risk myelodysplastic syndromes or MDS. Second, the TakeAim lymphoma study, a Phase 1/2 combination study with ibrutinib for patients with relapsed or refractory NHL or other hematologic malignancies. And third, the Phase 2 LUCAS study, evaluating emavusertib in patients with lower-risk MDS. Starting with the TakeAim leukemia study. We continue to work with FDA on resolving the partial clinical hold. We've had productive interactions with the agency and hope to provide an update soon. At ASCO and EHA, we presented positive clinical data, showing early and compelling response rates in AML or MDS patients with spliceosome or FLT3 mutations. These results demonstrate both a well-tolerated regimen and improved anticancer activity compared with the current standard of care. As the leader in IRAK4, we are pleased to be hosting an IRAK4 symposium on October 7th. In this symposium, we'll be bringing together experts from academia, clinicians and other corporates in panel discussions. To be clear, this will not be a forum for a Curis data update. The aim of the symposium is to address and advance topics of key interest to everyone in the IRAK4 community. We'll be releasing more details on this event soon. Now let's turn to our study of emavusertib in B-cell cancers and the TakeAim lymphoma study of patients with NHL and CLL. Our first look at initial data presented at ASCO and EHA showed the results from nine evaluable patients, eight of the nine patients experienced tumor burden reduction, including two CRs and two PRs. We share the excitement of our investigators that one of the observed CRs was in a patient who had received prior treatment with ibrutinib, suggesting that the combination may be able to overcome resistance to ibrutinib. Also at ASCO and EHA this year, we presented work by Curis scientists, describing the novel observation that IRAK4 localizes to the nucleus in cancer cells. When nuclear IRAK4 is found with two NF-kappaB proteins, P50 and 65, this triple presence in the nucleus is associated with better patient responses to emavusertib. This new finding deepens our understanding of IRAK4 biology and its role in cancer and marks an important next step in the development of biomarkers for identifying patients who could benefit from treatment with emavusertib. The ASCO and EHA conferences also saw presentations by our partners in academia, showing emavusertib's potential in several other tumor types, including solid tumors such as gastric cancer, melanoma brain metastases and primary CNS lymphoma. In short, the second quarter was an exciting time for IRAK4 research and expanding the potential of emavusertib. Now let's move to our second asset, CI-8993. The first-in-class monoclonal anti-vista antibody we're developing in collaboration with ImmuNext for the treatment of patients with relapsed or refractory solid tumors. CI-8993 is designed to antagonize the vista-signaling pathway. By blocking vista, a checkpoint associated with T-cell suppression, we hope to increase T-cell-mediated immune function. In preclinical models, addressing vista demonstrates exciting anti-cancer potential, both in monotherapy and in combination with CTLA4 and PD1. We believe CI-8993 is the most advanced anti-vista antibody currently in clinical development, and we are pleased to announce that we have cleared the 0.6 milligram per kilogram dose level in our dose escalation study and are currently enrolling at the dose level of 1 mg per kg. We are hosting the second annual vista symposium this year on September 23rd. As with the IRAK4 symposium, this will not be a forum for a Curis data update. The aim of the symposium is to address and advance topics of key interest to everyone in the vista community. We look forward to providing a Curis data update later this year. In summary, we're pleased with the progress we've made this quarter. We're excited to have Diantha onboard, and we look forward to providing important updates on both emavusertib and CI-8993 in the weeks and months ahead. With that, I'll turn the call over to Bill to review our financial results for the quarter. Bill?