Brian Lian
Analyst · Maxim Group. Please go ahead with your question
Thanks Mike. This is a pivotal time for Viking. We are approaching the anticipated read out of Phase II data from our VK5211 program and patients recovering from hip fracture. We expect to report the results from this study before the end of the year. We are also continuing to enroll patients in our ongoing Phase II trial of VK2809 and plan to complete that study in the first half of 2018. During the third quarter we made progress not only with these two clinical programs, but also with the earlier stage programs which target two orphan disease indications. We continue to carefully manage our resources and took steps during the quarter to strengthen our balance sheet and provide improved financial flexibility. We also increased the size of our Board of Directors during the third quarter adding an important director whom we believe will provide valuable insight and guidance as we continue to grow and execute our strategic plan. I'll start with an update on our VK5211 program for patients recovering from hip fracture surgery. VK5211 is a potentially best-in-class orally available non-steroidal small molecule selective androgen receptive modulator or SARM. In prior studies administration of VK5211 has led to improvements in lean body mass or muscle and bone mineral density. Following hip fracture, many patients experience a loss of bone and muscle at accelerated rates placing them at increased risk of further morbidity, re-fracture, and prolonged disability. We believe VK5211's preliminary profile suggests it could benefit these patients by potentially stimulating the formation of new muscle and bone. And we are not alone in this assessment. During the third quarter, we hosted a Key Opinion Leader Event in New York, which highlighted current treatment options and the importance of preserving musculoskeletal health in elderly patients following hip fracture as well as in other settings. At this event, the panelists provided an overview highlighting the significant unmet medical need in this area and insight as to how VK5211's novel characteristics may provide therapeutic benefit in this population without the side effects associated with broad acting androgen such as testosterone. We found the discussion to be encouraging and very well received by the audience both in person and via webcast. We are currently conducting a Phase II trial of VK5211 in patients who have recently suffered a hip fracture. This study is a randomized, double-blind, placebo-controlled, parallel group international study designed to evaluate the efficacy, safety and tolerability of VK5211 in 108 patients with recent hip fractures. Patients in this study are randomized to receive VK5211 doses of 0.5 milligrams, 1 milligram, 2 milligrams or placebo once-daily for 12 weeks. The study's primary endpoint will evaluate the effects of VK5211 on lean body mass after 12 weeks of treatment. Secondary and exploratory objectives include assessments of functional performance, quality-of-life, and activities of daily living, as well as safety, tolerability and pharmacokinetics. With enrollment in this study now complete, we are on track to report the initial results from the study later this quarter. I will now move to our second clinical program, VK2809 which is also in a Phase II study enrolling patients with non-alcoholic fatty liver disease and hypercholesterolemia. VK2809 is a novel, orally available small molecule thyroid receptor agonist that possesses selectivity for liver tissue as well as the beta receptor subtype. Pre-clinical studies have demonstrated that treatment with VK2809 leads to rapid histologic improvement in animal models of liver disease, as well as significant reductions in LDL-cholesterol, and triglycerides in humans. In a prior Phase Ib study in subjects with mild hypercholesterolemia, VK2809 was shown to significantly reduce not only LDL-cholesterol and triglycerides, but also both lipoprotein A and apolipoprotein B, two proteins associated with increased risks of cardiovascular disease. These data suggest potential long-term cardiovascular benefits that extend beyond those provided by LDL reduction alone. The overall profile of VK2809 thus far suggests promise in diseases that result from lipid disregulation as well as diseases related to liver fat such as NASH. In the second quarter, we announced data from a study of VK2809 in an animal model of NASH. The study was designed to evaluate VK2809 dosed orally once per day for eight weeks [indiscernible] that it developed true diet-induced NASH as confirmed by a pre-study biopsy. In the study, animals receiving VK2809 demonstrated statistically significant reductions in fibrosis, liver collagen, liver steatosis, and the non-alcoholic fatty liver disease activity score also known as NAS, which is a composite measure of steatosis, inflammation, and ballooning. We present the final results from this study last month at the AASLD meeting in Washington D.C. Key results included data showing that eight weeks of treatment with VK2809 produced an 80% reduction in total liver lipids, a 70% reduction in liver triglycerides, a 65% reduction in liver cholesterol, and 40% reduction in the NAS score. All of these data were statistically significant. Treatment with VK2809 also resulted in statistically significant reductions in key measures of fibrotic activity including a 50% reduction in total liver fibrosis, a 60% reduction in Type 1 collagen content, and a 46% reduction in liver hydroxyproline content. These absorbed effects on fibrosis and collagen content are particular importance as scientific literature suggests that liver fibrosis is associated with long-term outcomes in patients with non-alcoholic fatty liver disease and that hepatic collagen content is correlated with fibrosis staging and outcomes in these patients. As part of this study, we also conducted an analysis of genetic markers following exposure to VK2809. The results demonstrated statistically significant changes in the expression of key genes associated with NASH, development and progression. Overall, we were very pleased to see a broad metabolic effect resulting from treatment with VK2809 showing improved steatosis, fibrosis and NAFLD activity score. These data support our rationale for evaluating VK2809 in a variety of clinical settings. As I mentioned a moment ago, we are currently evaluating VK2809 in a Phase II trial in patients with fatty liver disease and hypercholesterolemia. This study is a randomized double-blind, placebo-controlled, parallel group study designed to assess the efficacy, safety and tolerability of VK2809 in patients with elevated LDL-cholesterol and non-alcoholic fatty liver disease. Patients are being randomized to receive once daily oral doses of VK2809 or placebo for 12 weeks, followed by a four-week off-drug phase. The trials primary endpoint will evaluate the effect of VK2809 on LDL-cholesterol after 12 weeks compared to placebo. Secondary and exploratory endpoints include assessments of changes in liver fat, triglycerides, and inflammatory markers. Enrollment in this study is ongoing and we look forward to completing this study in the first half of 2018. We believe that both our VK5211 and VK2809 programs represent novel best-in-class therapies for the respective indications. As discussed on our last quarterly update, our strategy with each of these programs is to complete the ongoing Phase II proof-of-concept studies and upon successful results meet with the appropriate regulatory agencies to discuss potential next steps with each program. In parallel, we intend to explore partnering opportunities and keep all options open as we proceed with planning. In our view maintaining a practical and flexible approach will allow us to pursue the highest value options for each program, which we believe is in the best interest of all of our stakeholders. In addition to our two ongoing clinical programs, we continue to advance two orphan disease programs, both of which we believe have the potential to be best-in-class options for serious conditions with no available treatments. Beyond the potential therapeutic benefit of our pipeline candidates in these indications, rare disease programs have certain characteristics that appeal to us, including the potential for reduced clinical trial sizes and expenses and the possibility of such programs maybe advanced independently without the assistance of larger partners. I'll begin with our program evaluating VK2809 in glycogen storage disease type Ia or GSD Ia. GSD Ia is an orphan genetic disease caused by the efficiency of glucose-6-phosphatase and enzyme responsible for the liver production of glucose from glycogen and gluconeogenesis. The disease for which there is no pharmacologic treatment results in increased triglyceride production and elevated hepatic triglyceride content. This can potentially lead to hepatic steatosis, development of hepatic adenomas, and hepatocellular carcinoma. In September, we reported final results from in vivo proof-of-concept study, which evaluated VK2809 in a model of GSD Ia. This study was conducted under a sponsored research agreement with between Viking and Duke University, and the results were presented at the 13th International Conference of Inborn Errors of Metabolism in Rio de Janeiro, Brazil. The result demonstrated the treatment with VK2809 led to the typically significant reductions in key metabolic markers of GSD Ia. Specifically, VK2809 produced a 69% reduction in liver triglycerides, 36% reduction in liver weight and a 54% reduction in the literary concentration compared to vehicle treated controls, and evaluation of VK2809 on markers of autophagy and genes associated with lipid metabolism in this model is ongoing. We believe the rapid and significant reductions in liver triglycerides content, combined with the reduction of total liver triglycerides to within normal ranges for wild type animals, suggest that treatment with VK2809 may provide therapeutic benefit in patients with GSD Ia. We plan to file an IND later this year to advance VK2809 into a proof-of-concept study in patients with GSD Ia. Moving to our second orphan disease program, in October, we announced data from a study evaluating our second novel thyroid receptor beta agonist VK2809 in a model of X-linked adrenoleukodystrophy or X-ALD. X-ALD is a debilitating disease caused by a defect in peroxisomal transporter called ABCD1. These patients are often characterized by the accumulation of long chain fatty acids in plasma and tissue. Sustained elevations in very long chain fatty acids are believed to contribute to the severe cerebral and motor neuron toxicities commonly observed in this disease. The activation of the thyroid beta receptor is believed to stimulate the metabolism a very long chain fatty acids providing a potential therapeutic benefit in this setting. VK0214 is an orally available, small molecule thyroid receptor agonist that possesses selectivity for the beta receptor subtype and made therefore represent a potential pharmacologic approach to the disease. In 2016 Viking and the Kennedy Krieger Institute partner to initiate a pre-clinical study evaluating VK0214 in an animal model of X-ALD call the ABCD1 knockout model. Encouraging initial results from this study were presented last year at the 86th annual meeting of the American Thyroid Association. The study successfully achieved its primary objective, demonstrating the ability of VK0214 to reduced plasma levels of very long chain fatty acids after six weeks of treatment. Subsequent to this initial study, we and the Kennedy Krieger Institute initiated a second longer-term study to evaluate the effects of VK0214 over a 25-week treatment window to access the effects on plasma and tissue in the same disease model. The results of this study were presented just last month at the 87th annual meeting of the American Thyroid Association held in Victoria British Columbia. The results of this study showed that treatment with VK0214 led to significant reductions in plasma levels of multiple very long chain fatty acids including the benchmark highly toxic C26 fatty acid. Importantly data from this study also showed a very long chain fatty acids in CNS tissues were also significantly reduced suggesting a potential direct benefit in both brain and spinal cord. In addition, the results showed improved expression of the compensatory transporter known as ABCD2 in both brain and liver tissue. As I mentioned earlier the accumulation of very long chain fatty acids it's believed to contribute to the underlying pathology of X-ALD. But these data showing reduced very long chain fatty acids as well as improved transporter expression provide additional support for the role of selective thyroid receptor beta activation as a potential therapeutic approach to the treatment of this disease. These results provide a strong rationale for the continued development of VK0214 and we are currently planning next steps for this program. While we have made great progress to date with our pipeline it is important that we have both the financial resources and the corporate expertise to support the ongoing advancement of our multiple programs. So, this end during the third quarter we entered into common stock purchase agreements with an institutional investor providing access to up to $16.25 million. The agreements provide us with flexible access to capital at attractive terms moving forward. Finally, to expand the depth of our corporate expertise during the third quarter we announced the appointment of Charles A. Rowland Jr. to the Company's Board of Directors. Charlie has more than 30 years of biopharmaceutical industry experience expanding financial management and strategic business operations. During his career, he's acted as CEO, CFO, or a Director for numerous biotech companies at Viking stage. As we continue to mature and develop as a company having access to someone with Charles's financial and operational expertise will be invaluable. In conclusion as I mentioned at the beginning of the call the past few months have been an extremely busy and exciting time at Viking. We remain on track to announce results from our Phase II trial of VK5211 in hip fracture by year-end and we expect to complete our ongoing Phase II trial of VK2809 in fatty liver disease and hypercholesterolemia in the first half of 2018. During the third quarter we continued to generate strong support for these programs. With respect to VK5211, the encouraging overview of the program as outlined in our KOL event last month, as they given us confidence in the promise of this candidate in multiple settings. With respect to VK2809, during the quarter we announced positive final results from an in vivo study in a model of diet induced NASH which demonstrated to significant reductions in fibrosis, collagen, steatosis, and non-alcoholic fatty liver disease activity score. We also reported important changes in gene expression that resulted from VK2809 action on the thyroid hormone receptor. These results provide compelling support for VK2809's efficacy and unique liver targeting mechanism of action. With our orphan programs, we recently presented positive findings from both our GSD Ia and X-ALD programs. These studies provide validation for our continued activity in both settings and we remain on track to file an IND application for VK2809 later this year for the treatment of patients with GSD Ia. With respect to VK0214, we are excited by the consistent signal observed in the in vivo proof-of-concept studies in X-linked adrenoleukodystrophy and look forward to providing further updates on this program as available. This concludes our prepared statements for today. Thanks for your support and for joining us, and I'd now like to open the call for questions. Operator?