Brian Lian
Analyst · Stifel. Please go ahead
Thanks, Greg. I’ll now provide an update on our development activities beginning with our lead program, VK2809. VK2809 is an orally available prodrug of a novel small molecule agonist of the thyroid hormone receptor that possesses selectivity for liver tissue, as well as the beta receptor subtype. Data to date suggests that treatment with VK2809 may provide benefits in a range of metabolic disorders, including NASH and fibrosis. In a prior 12-week Phase 2 study in patients with non-alcoholic fatty liver disease and hypercholesterolemia, VK2809 exhibited what we believe to be a best-in-class profile, demonstrating exceptional potency along with encouraging safety and tolerability. This study successfully achieved its primary and secondary endpoints with patients receiving VK2809, demonstrating statistically significant reductions in liver fat content, as well as improvements in LDL cholesterol. VK2809 also performed well on exploratory measures, demonstrating significant reductions in other plasma lipids, such as triglycerides, apolipoprotein B and lipoprotein (a). Importantly, these results were achieved without any serious adverse events being reported among patients receiving VK2809 or placebo. Follow-up results from this study, where the subject of an oral presentation at the International Liver Conference or EASL during the third quarter of 2020. The newly reported data highlighted VK2809’s durable benefit and in particular, among patients with key NASH risk factors. At week 16, four weeks after completion of the 12-week treatment period in the study, VK2809 treated patients maintained a statistically significant 45% median reduction in liver fat content compared to a 19% reduction among patients receiving placebo. Additionally, at week 16, 70% of VK2809 treated patients maintained a response defined as experiencing a greater than or equal to 30% relative reduction in liver fat content from baseline. notably, all patients receiving 5 milligrams of VK2809 daily maintained a response at week 16. In addition to these data, new analysis of week 12 study results demonstrated significant reductions in liver fat among patients receiving VK2809 as compared to placebo, regardless of the presence of common NASH risk factors, including baseline levels of ALT above the upper limit of normal, a body mass index greater than or equal to 30, hypertension or Hispanic ethnicity. combined the initial and follow-up data from this phase 2 study provide strong rationale for the continued advancement of VK2809 for the potential treatment of NASH and fibrosis. In addition to the compounds, potency, durability, low dose oral administration and encouraging safety and tolerability, we believe the broad efficacy observed in the reduction of other key lipids may indicate cardio-metabolic benefits for patients and important advantage as compared to mechanisms that have been associated with elevations in lipids known to increase cardiovascular risk. In late 2019, we advanced this program into a phase 2b clinical trial. This study called VOYAGE is a randomized double-blind, placebo-controlled, multicenter 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. The 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 patients treated with VK2809 as compared to patients receiving placebo. Secondary objectives include evaluation of histologic changes assessed by hepatic biopsy after 52 weeks of treatment. enrollment in VOYAGE continues to proceed. despite the hurdles presented by the coronavirus pandemic, we are pleased that during the fourth quarter of 2020, we continued to enroll at our U.S. sites and successfully opened new clinical sites, both in and outside of the U.S. that said, while the majority of these sites remain open the resurgence of the pandemic in both the U.S. and Europe continues to impact enrollment. As a result, we currently expect to complete enrollment in this trial in the second half of 2021. with respect to further clinical activities with VK2809, in 2020, we completed two additional studies that provided important data, enabling our ongoing preparation for phase 3 development. The first was a formulation study to evaluate both tablet and soft gel formulations of VK2809 that possessed potentially improved commercial profiles. In this study, both the tablet and soft gel formulations were well-behaved and demonstrated predictable PK providing us with flexibility in selecting future dosage forms. We also completed the study of VK2809 in patients with varying degrees of hepatic impairment. This study required of all NASH development programs demonstrated that VK2809 can be safely dosed in patients with liver impairment ranging from mild to severe. We’re happy to report that these studies were successfully completed and provide further support for VK2809’s promising therapeutic potential. In addition to VK2809 for NASH and fibrosis; in 2020, we also made excellent progress with our VK0214 program in development for the potential treatment of X-linked adrenoleukodystrophy or X-ALD. VK0214 is an orally available, small molecule thyroid hormone receptor agonist that possesses selectivity for the beta receptor subtype. X-ALD is an orphan neurodegenerative disease with no approved treatment that results from mutations in the ABCD1 gene and coding the adrenoleukodystrophy protein and important peroxisomal transporter. These mutations result in transported dysfunction and the accumulation of very long chain fatty acids, which are believed to contribute to the onset and progression of disease. The thyroid beta receptor is an important potential therapeutic target for X-ALD due to its role in the regulation of the adrenoleukodystrophy related protein, which may stimulate improved clearance of very long chain fatty acids. in preclinical studies, VK0214 was shown to potently activate the 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 tissues. In the second half of 2020, we initiated the phase 1 first-in-human study of VK0214. This trial is a randomized double-blind, placebo-controlled single ascending and multiple ascending 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 pharmacokinetics of VK0214 following single and multiple doses. We are currently on track to complete this trial in the first half of the year. pending an evaluation of the results, we plan to initiate a phase 1b study of VK0214 in patients with X-ALD shortly thereafter. in other operational news, we recently announced the appointments of Marianne Mancini to chief operating officer, and Greg Zante to Chief Financial Officer. both Marianne and Greg are seasoned industry executives with a combined 50 plus years of experience. And we look forward to their contributions to Viking’s long-term success. moving to financials. As Greg highlighted, we continue to carefully manage our balance sheet and completed the year with approximately $250 million in cash. We believe this will be sufficient to support the completion of multiple value creating events for the company. In conclusion, 2020 was a productive year for Viking, and we look forward to an exciting year in 2021. Despite the challenges posed by the ongoing pandemic, we expect to complete enrollment in our 52-week phase 2b VOYAGE study, evaluating VK2809 in NASH and fibrosis in the second half of 2021. our second clinical candidate, VK0214 for X-linked adrenoleukodystrophy recently entered clinical development. And we are currently executing a phase 1 single ascending and multiple ascending dose study. upon successful completion, we plan to initiate a phase 1b study in patients with X-ALD. given the strength of the preclinical results for this program, we believe that VK0214 may have the potential to be the first pharmacologic treatment option for this disease. the best managed Viking’s clinical, financial, and operational efforts, we recently appointed Marianne Mancini to the position of COO and Greg Zante to CFO. Both Marianne and Greg have exhibited strong leadership, and we are pleased to appoint them to these senior roles. And lastly, to support our two ongoing trials, as well as a number of other key objectives, we continue to carefully manage our cash balance, which remains strong at $248 million as of the end of 2020. This concludes our prepared comments for today. Thanks again for joining us and we’ll now open the call for questions. operator?