Brian Lian
Analyst · Raymond James. Please go ahead
Thanks Mike. As I stated at the beginning of the call, during the third quarter, we were focused on completing the important work that we believe will facilitate achievement of key corporate milestones. I’ll first discuss the progress made in preparing for our planned Phase 2b study of VK2809 in patients with biopsy-confirmed non-alcoholic Steatohepatitis or NASH. As a reminder, VK2809 is an orally-available, small molecule agonist of the thyroid hormone receptor that possess the selectivity from liver tissue as well as the beta receptor subtype suggesting promising therapeutic potential in a range of lipid disorders including NASH. In September of 2018, we announced positive results from a Phase 2 trial of VK2809, in patients with hypercholesterolemia and non-alcoholic fatty liver disease. Participants in this study were randomized to receive VK2809 doses of 5 mg daily, 10 mg daily, 10 mg every other day or placebo for 12 weeks. We were pleased to report that the trial achieved both its primary and secondary endpoints demonstrating potent reductions in liver fat content, as well as improvements in plasma lipid measures. As we reported at AASLD last year and at EASL this year, with respect to the trial’s primary endpoint, VK2809-treated patients demonstrated statistically significant reductions in LDL cholesterol, compared with placebo-treated patients. In addition, VK2809-treated patients experienced statistically significant improvements in other lipids including triglycerides and the atherogenic proteins apolipoprotein B and lipoprotein (a). With respect to the key secondary endpoint, VK2809-treated patients experienced significant reductions in liver fat as assessed by MRI-PDFF. Specifically, patients receiving VK2809 dosed at 5 mg daily for 12 weeks experienced a median relative reduction in liver fat content of approximately 54% from baseline. Patients receiving VK2809 doses of 10 mg every other day experienced a median relative reduction in liver fat reduction of approximately 57% from baseline and patients receiving VK2809 doses of 10 mg daily experienced a median relative liver fat reduction of approximately 60% from baseline. Across all VK2809 cohorts, the median relative reduction in liver fat was approximately 57%. By comparison, patients receiving placebo experienced a median relative reduction in liver fat of approximately 9%. The trial also included a responder analysis, which was intended to identify patients who experienced a 30% or greater relative reduction in liver fat content. This is an important threshold as multiple studies have demonstrated that a liver fat reduction of 30% or more correlates with an increased probability of improved overall histology. The results of this analysis were positive. All patients treated with VK2809 dosed at 5 mg daily experienced at least a 30% reduction in liver fat content. Approximately 77% of patients receiving VK2809 dosed at 10 mg every other day demonstrated at least a 30% reduction in liver fat. And for patients treated with VK2809 doses of 10 mg per day, approximately 91% experienced at least a 30% reduction in liver fat. The responder rate across all VK2809 cohorts in this study was approximately 88%. By comparison, approximately 17% of patients receiving placebo demonstrated a response. In considering the multiple drug candidates currently in development to treat NASH and the many data readouts announced in last year, we believe the observed response rate to VK2809 is unmatched by any other oral compound currently in developments. In addition to the robust efficacy observed, VK2809 has also demonstrated an encouraging safety and tolerability profile. In the Phase 2 study, no serious adverse events were reported among patients receiving VK2809 or placebo and the overall numbers of adverse events were relatively evenly distributed across treatment arms. We believe VK2809’s unique potential to improve liver health while also providing global cardiovascular benefits through reductions of systemic lipids is a key differentiating factor when compared to many other agents currently in developments. For these reasons, we believe VK2809 is the most promising candidate for the treatment of NASH in development today and we are excited to be advancing it through the clinic. To this end, we continue to aggressively move forward with our development of VK2809 and we are pleased to report that we recently filed an IND application with the FDA’s Division of Gastroenterology and Inborn Errors Products. We are currently focused on the important ramp up activities required for conducting our planned Phase 2b study in patients with biopsy-confirmed NASH. Today, we are fully engaged in training, preparing and supplying our clinical sites in order to facilitate a smooth and efficient study initiation. We currently plan to initiate the study this quarter. As we have previously described, we expect the trial to evaluate more than one dose of VK2809, for up to 12 months and planned to enroll patients with F2 and F3 fibrosis, as well as a limited number with F1 fibrosis. We will provide more detail on study design when the trial is initiated. I’ll now provide an update on our VK0214 program. VK0214 is being evaluated as a potential treatment for X-linked adrenoleukodystrophy or X-ALD, a devastating disease for which there is no proved therapeutic treatment. X-ALD is caused by a defect in the peroxisomal transporter called ABCD1. This defect can result in an accumulation of very long chain fatty acids in plasma and tissue and it is these elevated very long chain fatty acid levels that are believed to contribute to the severe cerebral and motor neuron toxicities that are characteristic of the disease. The thyroid beta receptor is an important potential target for therapeutic intervention in X-ALD, because it is a known regulator, a very long chain fatty acid metabolism. Like VK2809, VK0214 is an orally available small molecule thyroid receptor agonist that possess the selectivity for the beta receptor subtype. To-date, results from in vitro and in vivo studies have demonstrated that administration of VK0214 results in a significant reduction of very long chain fatty acids in both plasma and tissue potentially leading to a therapeutic benefit. These promising results for VK0214 were achieved through our ongoing collaboration with the Kennedy Krieger Institute, one of the world's leading X-ALD research centers. Both the Kennedy Krieger Institute and Viking teams are excited by our findings to-date and eager to advance this program into the clinics. We are currently conducting the IND-enabling work for VK0214 and plan to initiate a proof-of-concept study in humans in the first half of 2020. Turning to corporate matters, it is important to note that as we advance both VK2809 and VK0214 simultaneously through the clinic, we continue to carefully manage our financial resources. As a result, we completed the third quarter with approximately $290 million in cash and equivalents. We remain confident these funds are sufficient to allow completion of multiple clinical inflection points including studies of VK2809 in NASH, as well as proof-of-concept studies with VK0214 in X-ALD. In conclusion, the considerable work conducted during the third quarter has readied us for the clinical milestones that lie ahead. With respect to VK2809, we recently completed chronic toxicity studies to support long-term dosing in humans. The results of these studies, along with additional clinical and non-clinical data forms the basis of an IND application that was recently filed with the FDA. We remain on track to initiate our planned Phase 2b clinical trial in biopsy-confirmed NASH by year end. With respect to VK0214, we continued to conduct the IND-enabling work that will allow us to initiate a Phase 1 proof-of-concept study in X-ALD and we remain on track to begin this trial in the first half of next year. Finally, to support the advancement of these, as well as our earlier stage programs, we continue to carefully manage spending and have maintained a strong balance sheet that we believe will see the company through key milestones including our planned clinical studies. We look forward to providing updates on our pipeline programs and other corporate developments as they are available. This concludes our prepared comments for today. Thanks again for joining us and I’d now like to open the call for questions. Operator?