Brian Lian
Analyst · Maxim Group
Thanks Mike. In the second quarter, we at Viking have made steady progress with multiple programs. We continue to advance our ongoing Phase 2 clinical trials and generated important pre-clinical data that support our overall development strategy. We also took steps to advance our two orphan drug programs both of which have the potential to be first-in-class or best-in-class therapeutics. We made these advancements while continuing to carefully manage our R&D spend. In addition, we've strengthened our balance sheet and added valuable expertise to our board of directors. With our clinical programs we achieved an important milestone by completing enrolment in the Phase 2 trial of our most advanced program VK5211 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. Our ongoing Phase 2 trial at VK5211 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 the study are randomized to receive VK5211 doses of 0.5 milligrams, one milligram, two milligrams, or placebo once daily for 12 weeks. The studies 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. In an effort to optimize our trial protocol and the studies probability of success, we used great care in selecting patients for this study. We hope that the extra time, care, and effort that went into this study will ultimately be borne out in the results. With enrolment now complete, we look forward to reporting the initial data from this study in the fourth quarter. I will now shift to our second Phase 2 clinical program VK2809 for the treatment of non-alcoholic fatty liver disease and hypercholesterolemia. VK2809 is a novel orally available small molecule thyroid receptor agonist that possesses selectively 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 hepatic steatosis, as well as significant reductions in LDL-cholesterol, and triglycerides in humans. In a prior Phase 1b 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 June, we announced data from a study of VK2809 in an animal model of diet induced NASH which provided further support for its efficacy and unique liver targeting mechanism of action. These results demonstrated statistically significant reductions in fibrosis; liver collagen; liver steatosis, and the non-alcoholic fatty liver disease activity score also known as NASH which is a composite measure of steatosis, inflammation, and ballooning. The study was designed to evaluate VK2809 dosed orally once per day for eight weeks in a mouse model of diet induced NASH. Importantly all animals were biopsied prior to treatments to ensure disease characteristics consistent with the human form of disease including steatosis, ballooning, and the presence of fibrosis. The initial results from this study were very encouraging with VK2809 demonstrating statistically significant improvements compared with vehicle controls across a range of measures. These included the 70% reduction in liver triglyceride content, a 65% reduction in liver cholesterol content, and a 40% reduction in the NAS score. In addition, liver fibrosis was reduced by 50% and liver collagen content was reduced by 60% compared with vehicle controls. In our view the results from the study were impressive across the board and we found the observed effects on fibrosis and collagen content to be of particular importance. 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. In addition recently published data have indicated that a reduction of de novo lipogenesis can produce improvements in markers of liver fibrosis in patients with NASH. These data provide support for the potential benefits of VK2809 in NASH as prior data has shown VK2809 down regulates change important for de novo lipogenesis while simultaneously stimulating the suppression of genes important to lipid metabolism. These known lipid effects combined with our recent observations showing an antifibrotic effect suggests great promise in our view for VK2809s impact in settings where still steatosis and fibrosis are problematic. We recently completed an analysis of genetic markers from this study and expect to announce results of that work in the coming weeks. We plan to present the detailed results from this study at the AASLD Conference in October. We are currently evaluating VK2809 in a Phase 2 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 at 12 weeks compared to placebo. Secondary and exploratory endpoints include assessments of changes in lower fat contents, triglycerides, and inflammatory markers. As of today we've completed all planned site openings for the study and enrollment is ongoing. I'd like to take a minute to provide some color regarding the enrollment in this trial. This study is effectively a two-in-one study enrolling patients with both hypercholesterolemia and non-alcoholic fatty liver disease. As a result, our enrollment criteria are somewhat strict as we are seeking patients who present with multiple metabolic abnormalities, in addition to having high liver fat content. Specifically our target patients are required to have elevated LDL-cholesterol, elevated triglycerides, and at least 10% liver fat content. While we believe the specificity of these enrollment criteria will facilitate the highest quality data sets, they also significantly reduce our enrolment pool. Second, today there are multiple ongoing clinical trials in the setting of NASH or fatty liver disease. To some degree this exacerbates the relatively low availability of patients for our study. Each of these items in and of themselves will play a role in reducing the rate of enrollment in a study of this nature. Layering them on top of one another serves to amplify the filtering effect and impacts the pool of eligible patients that might otherwise be available to a dedicated NASH study. In an effort to accelerate enrollment in this study we recently submitted a protocol amendment to the FDA that would widen certain enrollment criteria, while maintaining the rigor and integrity of the trial. This protocol amendment is currently being implemented across all sites and it is our expectation that it should result in an improved rate of enrollment. However to error on the side of caution we now expect the top-line results from these trials to be available in the first half of 2018. I'd like to briefly comment on our strategy with these programs. We believe that both our VK5211 and VK2809 programs represent novel best-in-class therapies for the respective indications and that each has the potential to address large underserved markets. Our strategy with each of these programs is to complete the ongoing Phase 2 proof of concept studies and upon successful results meet with the appropriate regulatory agencies to discuss potential next steps. 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 our shareholders. In addition to the upcoming data from our two ongoing Phase 2 trials, we are also very excited at some of the opportunities for our programs in orphan disease settings. We are particularly enthusiastic about our programs in glycogen stores disease and X-linked adrenoleukodystrophy. We believe each of these indications represents an opportunity for Viking to proceed into and through registration studies with smaller, faster, and less expensive development programs. And we believe they each hold the potential for us to create significant value with or without an external partner. To this end, earlier this year we announced plans to evaluate VK2809 in Glycogen Stores Disease type 1A or GSD 1A. GSD 1A is an Orphan Genetic Disease that results in resistant Hypercholesterolemia and in excess accumulation of glycogen and lipids in liver. Over time this can lead to hepatic steatosis, hepatic adenomas, and potentially hepatocellular carcinoma. There is currently no pharmacologic treatment available for patients suffering from this disease. Given the novel liver targeting activities of VK2809 and our significant expertise with both the molecule and metabolic liver disease, we believe it offers a potential approach to reducing triglycerides, steatosis, and mitigating certain metabolic complications of GSD 1A. Earlier this year we reported data from an in vivo proof-of-concept study of VK2809 and GSD 1A. In this study treatment with VK2809 produced rapid and substantial reductions in liver triglycerides content, liver weights, and liver weight as a percentage of body weight compared with vehicle treated controls. Main liver triglyceride content was reduced by more than 60% in VK2809 treated animals relative to vehicle treated controls, while average liver weight was reduced by more than 30%. Complete results from the study which was conducted under a sponsored research agreement with between Duke University and Viking will be presented at the upcoming International Conference for Inborn Errors of Metabolism in Rio de Janeiro. We currently plan to file an investigational new drug application for VK2809 for the treatment of GSD 1A and initiate a human proof-of-concept study later this year. During the second quarter we also made progress with our second orphan program VK0214 for 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 high levels of very long chain fatty acids in tissue and plasma. 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. VK0214 is a novel, orally available small molecule fire receptor agonist that possess selectively for the beta receptor subtype. 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. In 2016 Viking and the Kennedy Krieger Institute partner to initiate a pre-clinical study evaluating VK0214 in an animal model of X-ALD. Encouraging initial results from this study were presented last fall at the Annual Meeting of the American Thyroid Association. The study successfully achieved its primary objective, demonstrating the ability of VK0214 to lower plasma very long chain fatty acids after six weeks of treatment in a relevant model of the disease. Subsequent to this initial study, Viking and the Kennedy Krieger Institute initiated a second longer-term study to evaluate the effects of VK0214 over a 25-week treatment window. This study has been completed and we expect to report the initial results this quarter. It is our hope that the combined results of these studies will provide important information related to the efficacy, tolerability, and durability of effects on key biomarkers relevant to the disease. Our work with VK0214 represents an exciting and novel approach to X-ALD. And we believe the data to-date suggests a promising potential benefit. We look forward to discussing this program in greater detail as additional results become available. On the corporate front, we recently took steps to strengthen both our balance sheet and our board of directors. During the second quarter, we completed a registered direct offering raising approximately $4.3 million in gross proceeds. These funds will be used for general corporate purposes including supporting our ongoing clinical trials as well as the pre-clinical and early clinical development for other programs. Finally subsequent to the end of the quarter we announced the appointment of Charles A. Rowland Jr. to the company's Board of directors. Charles 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 approach the conclusion of our Phase 2 trial and prepare to advance our earlier programs into the clinic, we believe Charles's financial and operational expertise will prove invaluable. In closing we've made great progress with all of our programs since our last update. In recent weeks we've completed enrollment of our VK5211 Phase 2 trial in patients recovering from hip fracture surgery and look forward to announcing the results in the fourth quarter. We also completed site openings for our VK2809 Phase 2 trial in non-alcoholic fatty liver disease and hypercholesterolemia and continue enrolling qualified patients into this study. In addition we announced positive results from an in vivo study of VK2809 in a model of diet induced NASH which showed significant improvements in fibrosis, liver collagen, steatosis, and NAS scores. With our orphan programs, we are currently preparing to file an IND application for VK2809 for the treatment of patients with GSD 1A and plan to initiate a proof-of-concept study for this indication later this year. In addition, we recently completed a long-term in vivo study of VK0214 in the ABCD 1 knockout model of X-linked adrenoleukodystrophy. We plan to report these results later this quarter. As we move into the second half of the year we see multiple news events approaching for all of our programs and we look forward to sharing these with you as they occur. This concludes our prepared statements for today. Thanks for joining us and I'd now like to open the call for any questions. Operator?