Craig Hopkinson
Analyst · Marc Goodman with SVB Leerink. Please proceed with your question
Thank you, Todd. I'd like to start by saying how incredibly gratifying it is to see LYBALVI now become commercially available to patients. The patients and caregivers that are impacted by schizophrenia and bipolar one disorder are a source of inspiration to us. And we are pleased to be able to offer this community a new treatment option that was designed with their needs in mind. Across our development programs, our objective is to develop innovative medicines with peer value propositions relative to current and anticipated future standards of care in neuroscience and in oncology. We've made significant progress in our pipeline this year. Starting with nemvaleukin, our novel, investigational engineered IL-2 variant immunotherapy. Nemvaleukin has demonstrated durable and deepening responses in a range of tumor types, both as a monotherapy and in combination with pembrolizumab in CPI naïve and CPI experience patients. Our clinical development strategy is designed to address key unmet needs in the field and focused on difficult to treat patient populations, including patients with checkpoint inhibitor, unapproved tumor types, and in post checkpoint inhibitor settings. Nemvaleukin is entering studies designed to support potential registration in two such tumor types with significant unmet need, first mucosal melanoma, a rare and aggressive form of melanoma that has limited treatment options. Earlier this year, FDA granted nemvaleukin orphan drug and fast track designation for the treatment of mucosal melanoma and the scoring of potential clinical utility for patients with this disease. Based on objective responses and disease control seen IN ARTISTRY-1 in this difficult to treat tumor type, we initiated ARTISTRY-6, a phase 2 monotherapy study designed to support potential registration. This study is expected to enroll approximately 70 patients with mucosal melanoma, who have progressed on checkpoint inhibitors, and who will be treated with IV nemvaleukin. This study is also expected to enroll approximately 40 patients with cutaneous melanoma, who will receive once weekly subcutaneous nemvaleukin, as we continue to evaluate that route of administration. The ARTISTRY-6 study is designed to build on the clear monotherapy signal that we've seen for the IV nemvaleukin in checkpoint inhibitor experience patients, which we believe is an important differentiator in the space. In the clinical development program, we've also observed encouraging antitumor activity with IV nemvaleukin in combination with pembrolizumab in patients with platinum resistant ovarian cancer. In a disease where the progression free survival associated with standard-of-care in the post platinum setting is approximately three and a half months, we've been particularly encouraged to see our patients at ARTISTRY-1 experience durable clinical benefit. Earlier this week, FDA granted fast track designation to the combination of nemvaleukin and pembrolizumab in platinum resistant ovarian cancer, and we announced the initiation of ARTISTRY-7 a global Phase-3 open label randomized trial evaluating the antitumor efficacy and safety of IV nemvaleukin in combination with pembrolizumab compared to investigators choice chemotherapy in patients with platinum resistant epithelial ovarian, fallopian tube or primary peritoneal cancer. The primary endpoint of ARTISTRY-7 is investigated reported progression free survival based on RECIST 1.1. The study is expected to enroll approximately 276 patients who will be randomized to one of four treatment arms to receive nemvaleukin and pembrolizumab combination therapy, pembrolizumab monotherapy, nemvaleukin monotherapy or investigators choice chemotherapy. ARTISTRY-7 is being conducted in collaboration with Merck under a clinical trial and supply agreement for pembrolizumab. We've also entered into agreements with two preeminent collaborative groups in gynecological oncology, the GOG Foundation and the European Network of gynecological oncology oncological trial groups to conduct the study. We're in the process of initiating the clinical trial sites and expect to begin patient dosing early next year. Based on the activity that we've seen in our current RV dosing regimen, including the durability of some of the responses observed, and consistent with our patient centric focus, we also plan to explore the potential for less frequent intravenous dosing options. Currently, in our ongoing RV studies, patients receive a 30 minute nemvaleukin infusion in an outpatient setting for five consecutive days, followed by a 16-day off period. This regimen has demonstrated antitumor activity; both in monotherapy and in combination with pembrolizumab in multiple tumor types and clinicians believe this is an acceptable dosing regimen. A less frequent dosing regimen may offer additional flexibility to patients, which may be useful as we consider additional tumor types and potential combination regimens. Based on extensive modeling and the PKPD safety information that we've collected in clinical studies to date, we plan to add evaluation of once every three weeks and twice every three weeks RV dosing intervals to our clinical program starting in the first quarter of 2022. We're also continuing to evaluate weekly subcutaneous dosing in the ongoing ARTISTRY-2 study and in ARTISTRY-6 as I outlined earlier. For ARTISTRY-2 the dose expansion cohort is ongoing and we'll identify appropriate medical meetings at which to present those data next year. As we look ahead, we believe there are a variety of tumor type combinations and lines of therapy for which nemvaleukin may have potential clinical utility. We are now well positioned to advance nemvaleukin towards potential registration in mucosal melanoma and platinum resistant ovarian cancer. And we'll consider additional tumor types and clinical work going forward in the context of potential partnerships. Turning now to ALKS 1140, our selective HDAC inhibitor candidate. Many neurological disorders are characterized by synaptic pathology with synapse loss, abnormal density of dendritic spines, and aberrant synaptic signaling and plasticity. For these disorders targeting the synapse, may slow progression and preserve cognitive and functional abilities. We are pleased to have recently initiated our first in-human study and expect to complete single and multiple ascending studies in 2022. These studies are intended to confirm brain penetration and determine the PKPD and safety profiles of ascending doses of ALKS 1140 in healthy volunteers. Bio market from these studies may also provide proof of target engagement for this novel molecule. In parallel to the first in-human studies, we plan to conduct a phase zero biomarker program to inform indication selection and clinical study designs. We are considering a number of psychiatric neurodegenerative and neurologic indications for ALKS 1140 and we'll continue to refine our approach to indication selection as we advanced in the clinic. ALKS 1140s biology may have utility in a number of different areas, and we are carefully considering which potential indications may offer the highest likelihood of clinical regulatory and commercial success. Moving to orexin 2 receptor agonist, we recently nominated ALKS 2680 to advance towards the clinic. This candidate nomination triggered the initiation of IND enabling activities necessary to support the first in-human studies. Consistent with our strategy to apply innovative molecular design to development programs with a strong biologic rationale, but that presents technical design challenges our goals for 2680 was to design a novel molecule that is selected for orexin 2 receptor has favorable half-life with Republican [ph] kinetic and pharmacodynamic profile that mirrors the natural sleep wake cycle, and aims to avoid certain safety risks associated with existing stimulant medications. Data from a preclinical model which serves as a predictor disease model of narcolepsy in humans demonstrate a dose dependent increases in wakefulness and dose dependent decreases in cataplexy with ALKS 2680. The pharmacokinetic and pharmacodynamic dynamic relationship for ALKS 2680 observed in our preclinical work has also suggested the potential for a low human dose and drug burden, which may be important for safety and tolerability. Importantly, at pharmacologically relevant plasma exposures in a preclinical rat hemodynamic model ALKS 2680 did not adversely elevate heart rate or blood pressure, two key safety parameters related to the orexin pathway. We have are excited about this program and currently expect to enter the clinic in late 2022 or early 2023 following the completion of IND-enabling activities. Taking a step back, as our molecules advanced through the various stages of development, we are continuously interrogating and addressing key critical questions. With defined stage gates designed to enable data driven decision making, we believe that we are well positioned to continue to advance our pipeline, and efficiently allocate capital. I look forward to sharing our progress with you. And I'll turn the call back over to Rich.