Mark Currie
Analyst · Bank of America. Your line is now open
Thanks, Chris. I'll now turn to our sGC stimulators. We recently initiated two Phase II trials with IW-1973, a lead sGC stimulator. The first Phase II trial was in patients with diabetic nephropathy, a form of chronic kidney disease. Diabetic nephropathy is estimated to affect millions of patients around the world, including an estimated 8 million Americans and is the leading cause of end-stage renal disease. Today despite limited available treatments that slow progression, patients continue to go on to require dialysis or kidney transplantation, and there are few therapeutic options that target the underlying pathophysiology of the disease. We believe, 1973, the ability to boost nitric oxide signaling would help to significantly protect renal function, to improving renal blood flow regulation, reducing vascular and tissue inflammation and inhibiting fibrosis. This Phase II dose ranging trial is designed to evaluate the safety and efficacy of two 1973 doses in patient with diabetic nephropathy. The trial is expected to enroll approximately 150 patients. The primary endpoint is seeking to assess the urinary albumin to creatinine ratio, an indicator of kidney function in diabetic nephropathy. The second Phase II trial is in patients with heart failure with preserved ejection fraction or HFpEF. HFpEF also affect millions of patients around the world, including an estimated 3 million Americans, and it's a highly symptomatic condition, offered -- often associated with high rates of morbidity and mortality. Currently, there are no approved therapies to treat HFpEF, and incidences are increasing due to an aging population and a rise in comorbid condition such as obesity and type 2 diabetes. The latter of which, a third of HFpEF patients have. We believe, 1973 has the potential to provide multi-dimensional impact in HFpEF, by increasing blood flow to the tissues and reducing vascular inflammation in fibrosis, leading to clinical improvements and exercise tolerance, functional status and quality of life, key areas that are compromised by HFpEF. This Phase II dose ranging study is designed to evaluate the safety and efficacy of three 1973 doses in patients with HFpEF. The trial is expected to enroll approximately 325 patients. A key primary endpoint is seeking to evaluate the effect of 1973, on peak exercise capacity, and a key secondary endpoint is seeking to evaluate functional improvement on the six-minute walk test. Although each study in patient population involved unique endpoints in disease manifestation, we believe 1973 has the potential to provide clinical improvement for both under [technical difficulty]. I want to turn now to our other clinical stage sGC stimulator, IW-1701. The Phase IIa study in achalasia is enrolling more slowly than we expected and we now expect data in 2018. We are advancing IW-1701 into a new indication, sickle cell disease, which is a devastating disease that affects approximately 100,000 people in the United States and millions of people throughout the world. And this is the first time we are talking about our efforts in sickle cell. Slide 13 provides a visual to help describe why we think an sGC stimulator like IW-1701 can play an important role in the treatment of this disease. Specifically, we believe IW-1701 has the potential to treat multiple aspects of sickle cell disease pathophysiology. By stimulating the sGC pathway, we believe IW-1701 could reduce ischemia, decrease red blood cell sickling and diminish vascular inflammation. We expect to initiate a Phase II trial of 1701 in sickle cell disease before year-end. Preparations for this study are underway, and we plan to provide more details on the trial design following study initiation. In summary, we believe that our therapeutic candidates could provide much needed innovation for patients suffering from some of the most challenging and historically intractable unmet needs in medicine, and look forward to continuing to advance them towards commercialization. With that, I'll turn the call over to Gina Consylman to discuss our financials.