Philip Worboys
Analyst · Piper Sandler. Your line is open
Thanks, Rick. Starting on Slide 6, TD-1473, is an oral gut-selective pan-JAK inhibitor designed to treat inflammatory intestinal disease directly at the site of inflammation with minimal systemic exposure or corresponding immunosuppressive effects. 1473 is in two clinical studies in partnership with Janssen. One, in ulcerative colitis and the other, in Crohn’s disease. RHEA is a Phase 2b/3 study of 1473 in patients with moderately to severely active positive ulcerative colitis. In parallel, DIONE is a Phase 2 study in patients with Crohn’s disease. Both studies are currently enrolling patients and we look forward to reading that data from the Phase 2b portion of the ulcerative colitis study and the Phase 2 Crohn’s disease study in late 2020 to support what we believe may become a best-in-class efficacy and safety profile in the treatment of inflammatory bowel disease. Today, we are pleased to report the results from the Phase 1 first in human study of TD-5202, our irreversible JAK3 inhibitor for inflammatory intestinal diseases also partnered with Janssen. The single and multiple ascending dose study evaluated the safety and tolerability of 5202 in healthy subjects. 5202 was generally well tolerated as a single oral dose up to 2,000 milligrams and as a twice-daily oral dose up to 2,000 milligrams total per day, given for 10 consecutive days. There were no severe or serious adverse events reported, and all treatment emergent adverse events in 5202 treated subjects were mild in severity. Vital signs and the electrocardiogram assessments did not demonstrate any clinically significant changes from baseline and no clinically significant changes in chemistry or hematology parameters were observed post-dosing. The trial also measured the amount of 5202 in the bloodstream. Consistent with our expectations of an oral-selective – organ-selective compound, the plasma levels of 5202 in these subjects were very low. In fact, maximal concentrations, even at the highest dose tested 1,000 milligrams twice-daily, were at least in order of magnitude below the predicted levels that may be associated with systemic activity. We believe 5202 may provide a promising additional therapeutic approach for addressing a range of inflammatory intestinal diseases. And we plan to collaborate with our partner Janssen on the next steps for development. Let’s turn now to Slide 10, Ampreloxetine. Once-daily norepinephrine reuptake inhibitor in development for the treatment of patients with symptomatic nOH. The registrational Phase 3 program of Ampreloxetine includes two studies as depicted on Slide 11. First, the Sequoia study assesses the efficacy and safety of a 10 milligram dose versus placebo over 4 weeks in 188 patients. Second, the Redwood study, which assesses the durability of response to Ampreloxetine by placed in 254 patients, including patients from the Sequoia study on open label treatment for 4 months and then randomizing half of the patients to placebo in a double-blind, 6-week withdrawal phase. Both studies are actively enrolling patients and the 4-weeks Sequoia study is expected to report data in late 2020. We believe Ampreloxetine could offer distinct advantages over existed nOH therapies such as droxidopa, which carries a boxed warning for supine hypertension. Our market research shows there about 50,000 patients with nOH who could benefit from a safer and more effective therapy and/or readily accessible primarily in tertiary centers. Importantly, we plan to commercialize Ampreloxetine ourselves in the US. Now to Slide 12, 8236. It is our lung-selective inhaled pan-JAK inhibitor in development for the treatment of inflammatory lung diseases, including steroid-resistant asthma. There’s a population of patients, particularly with severe asthma who are so called T2-low, rather than T2-high inflammation. And most of these patients don’t benefit from either steroids or from biological agents. We believe there is an opportunity with 8236 to treat patients, regardless of T2 phenotype and ideally 8236 could be used as an inhaled alternative to steroids before these patients progress to biologics. As reported last year, initial results from the Phase 1 multiple and single ascending dose studies were encouraging. 8236 was generally well tolerated as a single inhaled dose, up to 4,500 micrograms in healthy subjects. And as a once-daily inhaled dose of up to 4,000 micrograms given for seven consecutive days in patients with mild asthma. Turning to Slide 14, an additional objective of the Phase 1 MAD study was to determine biological evidence of an anti-inflammatory effect in the lungs of these mild asthma patients. We achieve this by measuring reductions in fractional exhaled nitric oxide or FeNo and established disease activity biomarker in asthma. Over the seven days of 8236 administration, these patients experienced reductions in FeNo compared to placebo at all doses above 150 micrograms. Based on these encouraging study results, we are conducting a policy extension portion of this Phase 1 trial in patients with moderate to severe asthma. These patients represent the population that would ultimately be most likely to benefit from 8236. In addition to providing further opportunity to measure the effect of 8236 on FeNo, these patients are also consenting to having bronchoscopies so we’ll be able to sample the cells and fluid in the lungs to look at additional markers of inflammation, and we expect to see data mid 2020. In parallel, we are also conducting a lung allergen challenge Phase 2 study. This is a mechanistic study in which patients inhale an allergen, which provokes an exacerbation-like response in the lung under controlled conditions, and is often accepted as a strong proof-of-concept in predicting a reduced risk of exacerbations in patients with asthma. Results of this study also expected mid 2020. We have numerous early stage organ-selective programs and we are focusing on moving three forward this year. Firstly, our inhaled nebulized lung-selective pan-JAK inhibitor intended for the prevention of lung transplant rejections and other serious inflammatory conditions of the lung, which we hope to bring to clinic by midyear. Secondly, our inhaled nebulized lung-selective ALK5 inhibitor intended for idiopathic pulmonary fibrosis. We are aiming to have this program in clinic towards the end of the year. And thirdly, our intravitreal eye-selective pan-JAK inhibitor intended for diabetic macular edema. We are currently conducting long-term toxicity studies for this compound with a goal of advancing it to the clinic upon completion. We look forward to providing updates on these early stage programs as they progress towards the clinic. So next, Frank will provide an update on the US commercial launch of YUPELRI.