Phil Serlin
Analyst · Oppenheimer. Please go ahead
Thank you, Tim, and good morning, everyone. And thank you for joining us on our fourth quarter earnings conference call today. Earlier this morning, we issued our Q3 earnings press release, a copy of which is available in the Investor Relations section of our website. It was also filed in the 6-K. I will begin with the brief review of our programs and activities, recap our milestones over the next several quarters. And then, Mali Zeevi, our Chief Financial Officer will provide a short discussion of our financial results. We will then open up the call to your questions. Also during the call for Q&A, are Abi Vainstein, our Vice President, Clinical Development; and Ella Sorani, our Vice President, Research and Development. During the fourth quarter, we achieved a significant development milestone with the announcement of preliminary Phase II data from the triple combination arm of our ongoing COMBAT/KEYNOTE-202 clinical trial that we are running in collaboration with Merck. Recall that this trial is evaluating BL-8040, which we're now calling motixafortide in combination with Merck's, KEYTRUDA and chemotherapy as a second line treatment for pancreatic ductal adenocarcinoma or PDAC. PDAC is a particularly challenging form of cancer due to its aggressive biology and late stage at the time of detection. Approximately 50% of patients are initially diagnosed at stage four. These factors contribute to a very poor prognosis for these patients. Moreover, PDAC is also a cold tumor that is not receptive to currently available immuno-oncology agents, so more effective treatment options are desperately needed for this patient population. Motixafortide targets to chemokine receptors CXCR4 a well-established cancer target, which is believed to play a key role in tumor growth invasion, angiogenesis, metastasis and therapeutic resistance. CXCR4 is over expressed in more than 70% of cancers and is shown to be correlated with poor prognosis. Previously, the results of the dual combination arm of the COMBAT/KEYNOTE-202 study that we announced last year show that motixafortide affects multiple modes of action in cold tumors, such as pancreatic cancer, including immune cell trafficking, tumor infiltration by immune effector T cells and reduction in immunosuppressive cells within the tumor niche. By doing so, motixafortide when combined with a checkpoint inhibitors such as KEYTRUDA shows greater clinical activity than checkpoint inhibitor therapy alone. In the triple combination arm of the study which is ongoing, we are testing the hypothesis that the addition of chemotherapy to this already promising combination will prove synergistic and yield further improvements in both efficacy and durability. In December, we presented preliminary data at the European Society of Medical Oncology Immuno-Oncology Congress, otherwise known as ESMO IO in Geneva. As of the December 5 data cutoff date, 30 patients were valuable for safety and 22 were evaluable for efficacy. All patients enrolled were originally diagnosed with stage four metastatic PDAC and it progressed following first line treatment with gemcitabine-based chemotherapy. Recapping the highlights; best response for the 22 patients evaluable for efficacy showed seven partial response and 10 stable disease patients, resulting in an overall response rate of 32% versus 17% per standard of care and a disease control rate of 77% versus 52% per standard of care. Notably, the combination showed continuity of effect, five patients with stable disease became partial responders as treatment continued. Out of the seven partial responders, five were still on treatment with a maximum treatment time of over 330 days, and four responders showed a reduction in tumor burden of over 50%. Median duration of clinical benefit until progression for the 17 patients with disease control was 7.8 months versus three to four months under standard of care chemotherapy. The combination was generally well tolerated with a safety profile that one would expect from chemotherapy based treatment regimens. In terms of next steps, in January, we announced that we had completed enrollment of 40 patients in the triple combination arm. The trial is progressing as planned, and we expect to report progression free survival and overall survival data mid-year. This is consistent with our prior guidance as the program continues to adhere to our anticipated development timelines. We were also extremely pleased to receive a notice of allowance from the US Patent Office in January, entitling us to long-term highly enforceable and broad patent protection from motixafortide in combination with any PD-1 inhibitor, and more importantly, for all cancer indications, including of course any solid tumor. This important patent allowance through 2036 supports our immune-oncology efforts from motixafortide in a very significant way. Turning now to our other pipeline indications, we're also evaluating motixafortide in acute myeloid leukaemia, as well as stem cell mobilization for multiple myeloma patients. We continue to view motixafortide as a platform molecule and see an opportunity to combine it with a number of therapies targeting different cancers and at different stages of disease progression. Reflecting this versatility, the FDA has granted motixafortide orphan drug designation in all three indications, which we believe validates the potential this molecule and reiterates the need for improved treatments in these difficult to treat cancers. We also recently announced that we received orphan drug designation in pancreatic cancer by the European Medicines Agency. Beginning with AML our large randomized controlled Phase IIb study of motixafortide in consolidation therapy for patients in first remission, known as the blast study is continuing. Last quarter we indicated that since this is an event driven study, based on the number of relapse events in each arm, the timeline for conducting an interim analysis was and remains fluid. At this point we expect to conduct this apt analysis in the second half of this year. We will certainly keep you updated as we continue to progress toward this important data milestone. It's worth noting that our decision to investigate motixafortide in a consolidation AML setting stems from meaning meaningful proof of concept data announced in our previously conducted Phase IIa in relapsed refractory AML. These data demonstrated that the combination of motixafortide with cytarabine significantly improved overall survival compared with historical data for cytarabine mono therapy and was safe and well tolerated. Finally, turning to stem cell mobilization, which is our most advanced indication, the GENESIS trial continues to recruit as planned. This study is a double blind, placebo controlled Phase III trial, which is comparing motixafortide in combination with G-CSF to G-CSF alone for the mobilization of stem cells used for autologous transplantation in multiple myeloma patients. The randomized portion of this trial which was planned to enroll 177 patients, across more than 25 trial sites is ongoing. As our most advanced indication, stem cell mobilization remains our most efficient pathway to registration and we believe it has the potential to be a game changer in autologous bone-marrow transplantation for multiple myeloma and other indications such as non-Hodgkin's lymphoma. The results that we observed from 11 patients in the leading portion of this study showed an ability of the combination to reduce the number of administration's and after recessions, as well as hospitalization costs related to the preparation of multiple myeloma patients for autologous stem cell transplantation. Nine of a 11 patients to reach the primary endpoint threshold, over 6 million CD34 cells per kilogram, with only one dose of motixafortide and an up to two of recessions and seven of 11 patients reached the threshold in a single after recession only. These initial results give us confidence as the randomized portion progresses and we are looking forward to top line results later this year. Turning now to our second clinical asset, our novel cancer immunotherapy AGI-134, which we are evaluating in a multicenter open label Phase I/2a study in patients with unresectable solid tumors. The study is designed to evaluate the safety and tolerability of AGI-134 at the recommended dose in multiple solid tumor types to evaluate a wide array of biomarkers and to validate AGI-134's mechanism of action. We will also assess efficacy by clinical and pharmacodynamic parameters. Following the results of part one of the study, we moved quickly to initiate part two, which is the dose expansion phase. In part two, we are assessing the efficacy and proof of mechanism of AGI-134 using clinical and pharmacodynamic parameters. As a reminder, numerous preclinical studies of AGI-134 to date, have demonstrated that treatment with this novel compound leads to regression of established primary tumors, prevents growth of untreated distal secondary tumors and triggers a vaccine effect that may prevent the development of future metastasis. The trial is currently being carried out in the UK, Israel and the US. We look forward to these initial efficacy results by the end of this year, which is unchanged from our prior guidance. I will now turn the call over to Mali Zeevi, our CFO, who will give a brief overview of our key fourth quarter financial statement items. Mali, please go ahead.