Brian Lian
Analyst · Truist Securities. Please go ahead
Thanks, Greg. I will now provide an update on our recent development activities, beginning with our lead program, VK2809 for the treatment of NASH and fibrosis. VK2809 is an orally available small molecule agonist of the thyroid hormone receptor that possesses selectivity for liver tissue, as well as the beta receptor subtype. Clinical data to-date have demonstrated that VK2809 has compelling potency, selectivity, safety and tolerability profile that may provide benefits in a range of metabolic disorders including NASH. Our enthusiasm for this program stems in part from the results of our previously completed 12-week Phase 2 trial in non-alcoholic fatty liver disease and hypercholesterolemia. These data demonstrated that patients receiving VK2809 experienced statistically significant reductions in liver fat content as well as improvements in LDL cholesterol, achieving the study’s main efficacy objectives. On exploratory measures evaluating other plasma lipids, such as triglycerides, apolipoprotein B and lipoprotein A, treatment with VK2809 also resulted in significant reductions. Importantly, these results were achieved without any serious adverse events being reported among patients receiving a VK2809 or placebo. In the third quarter, additional follow-up data from this trial were presented in an oral presentation at the International Liver Conference, or EASL. The newly reported data demonstrated that patients treated with VK2809 experienced durable, statistically significant reductions in liver fat content that were maintained at week 16, 4 weeks after completion of the 12-week treatment period in the study. Specifically, VK2809 treated patients maintained a statistically significant 45% median reduction in liver fat content at week 16 compared to a 19% reduction among patients receiving placebo. Additionally, at week 16, 70% of VK2809 treated patients maintained the response, defined as experiencing a greater than or equal to 30% relative reduction of liver fat content from baseline. Notably, 100% of patients receiving 5 milligrams of VK2809 dose daily maintained a response of Week 16. In addition to these durability results, new analyses of week 12 study results demonstrated significant reductions in liver fat content among patients receiving VK2809 as compared to placebo, regardless of the presence of common NASH risk factors, including baseline levels of ALT above the liver normal, a body mass index greater than or equal to 30, hypertension or Hispanic ethnicity. The overall data from this study, including these new findings of durability and efficacy in high-risk subgroups support the underlying promise of VK2809 for the treatment of NASH and fibrosis. In addition, we believe the broad efficacy observed on key lipid group measures may indicate cardiometabolic benefits in this setting, an important advantage as compared to mechanisms that may lead to elevations in lipids known to increase cardiovascular risk. Based on these positive Phase 2 results, last year, we initiated the Phase 2b trial to assess VK2809 in the setting of NASH. This study called VOYAGE is a randomized, double-blind, placebo-controlled multi-center trial designed to assess the efficacy, safety and tolerability of VK2809 in patients with biopsy-confirmed NASH and fibrosis. The study is targeting enrollment of approximately 340 patients across five treatment arms. The target population includes patients with F2 and F3 fibrosis, as well as up to 25%, with F1 fibrosis. Primary endpoint of the study will evaluate the change in liver fat content as assessed by magnetic resonance imaging proton density fat fraction from baseline to week 12 in subjects treated with VK28029 as compared to subjects receiving placebo. Secondary objectives include evaluation of histologic changes assessed by hepatic biopsy after 52 weeks of treatment. During the quarter, we continued to enroll patients in the U.S. despite the headwinds created by the COVID pandemic. The majority of our U.S. sites are open for enrollment and we expect to open ex-U.S. sites imminently. In addition, we plan to add further sites for enrollment with a plan to ultimately enlist over 90 sites globally. We expect to complete enrollment in VOYAGE during the first half of 2021. I will now turn to our second clinical program, VK0214, for the potential treatment of X-linked adrenoleukodystrophy, or X-ALD. VK0214, like VK2809, is an only available small molecule thyroid hormone receptor agonist that possesses selectivity for the beta receptor subtype. In preclinical studies, VK0214 was shown to potently activate thyroid hormone beta receptor, leading to improvement in several in vitro measures that suggest potential benefit in X-ALD. Additional data from in vivo studies have demonstrated that administration of VK0214 produces a significant and durable reduction of very long chain fatty acids in both plasma and tissue. In part as a result of these important findings, VK0214 has been granted orphan drug designation by the FDA for the treatment of X-ALD. In the third quarter, we announced the initiation of a Phase 1 first-in-human study of VK0214. This trial is a randomized, double-blind, placebo-controlled, single-ascending and multiple sending dose study in healthy volunteers. The primary objectives of the study include evaluation of the safety and tolerability of single and multiple oral doses of VK0214 as well as the identification of doses for further clinical development in the setting of X-ALD. Investigators will also assess the pharmacokinetics of VK0214, following single and multiple oral doses. Upon successful completion of the ascending dose trial, we plan to initiate a Phase 1B study of VK0214 in patients with X-ALD. We currently expect this study to begin in the first half of 2021. With two ongoing clinical programs, it is important to maintain the strong financial position and we continue to carefully manage our cash resources. As Greg stated during the financial discussion, we ended the third quarter with approximately $255 million in cash and we believe this balance provides the runway required to complete both ongoing trials as well as the number of additional clinical milestones. In conclusion, our primary focus in the third quarter was on the continued execution of our two clinical programs. In our 52-week Phase 2b VOYAGE trial evaluating VK2809 in patients with NASH and fibrosis, the majority of our planned clinical sites are open for enrollment and we plan to open additional sites in the coming months. We expect to complete enrollment in the first half of 2021. With respect to VK0214 for X-linked adrenoleukodystrophy, we were very pleased in the third quarter to move this important program into the clinic. We are currently executing a Phase 1 single ascending and multiple ascending dose study and plan to initiate a Phase 1b study in patients with X-ALD in the first half of 2021. To support these trials as well as a number of other key objectives, we continue to judiciously manage our cash balance, which remains strong at $255 million as of the end of the third quarter. This concludes our prepared comments for today. Thanks again for joining us and we will now open the call for questions. Operator?