Derek Chalmers
Analyst · Piper Jaffray. Your line is now open
Okay, thank you, Michael and good afternoon everybody and thanks for being with us on the call today. This was a highly productive quarter for us here at Cara as we continue to make significant progress across development programs for our lead peripheral kappa agonist, CR845. This afternoon, we will summarize that overall progress, provide some more color on the upcoming trials and then walk through the expected milestones. We are particularly pleased with the progress made in our pruritus program this quarter, including the completion of our End-of-Phase 2 meeting with the FDA and we plan to initiate our first pivotal Phase 3 efficacy trial of I.V. CR845 for the treatment of chronic kidney disease, associated pruritus and hemodialysis patients in the U.S. by end of 2017 and I will summarize the general design of that trial shortly. Overall, in consultation, with the FDA, we have now established the key elements of the Phase 3 program to support a new drug application for I.V. CR845 for the treatment of moderate-to-severe chronic kidney disease associated pruritus and hemodialysis patients. This of course as we have said before is an unmet need for which there are currently no approved therapies in the U.S. In addition, in the pruritus area, we are very pleased to recently move oral CR845 forward into Phase 1 trial in non-hemodialysis patients with earlier stage CKD to support our general plans to expand the use of CR845 for the treatment of moderate-to-severe CKD associated pruritus in CKD Stage 3 to 5 patients. Data from this trial will inform dose selection and design of the planned placebo-controlled Phase 2 trial of oral CR845 in Stage 3 to 5 CKD patients, which we plan to initiate in Q1 of 2018. Current CDC estimates indicate that approximately 50% of diagnosed CKD patients are in Stage 3 to 5 with an estimated 25% of those patients suffering from moderate-to-severe chronic kidney disease associated pruritus. Given the encouraging Phase 2 efficacy data, we have observed to-date with I.V. CR845 in hemodialysis patients with moderate-to-severe pruritus, we believe the oral CR845 has the potential to bring meaningful clinical benefit to a large proportion of earlier stage CKD patients with pruritus. In addition to treating CKD associated pruritus, we believe that based on this mechanism of action that is the combined dermal peripheral nerve inhibition and anti-inflammatory effects we see with CR845 that the drug has the potential to treat pruritus across a range of medical conditions. In this regard, we are targeting chronic liver disease associated pruritus as the second pruritic clinical population for CR845 development and we plan to file an IND for oral CR845 for symptomatic relief of chronic liver disease associated pruritus later this quarter to enable initiation of a Phase 1 trial by year end. Now, returning to our lead pruritus program let me provide you some greater details on the elements and timing of our planned Phase 3 program for I.V. CR845 for moderate-to-severe CKD AP and hemodialysis patients. Based on our discussions with the FDA and Q3 of this year, we plan to conduct two placebo-controlled Phase 3 trials of I.V. CR845 for the treatment of moderate-to-severe CKD AP. The first pivotal trial is planned to initiate in the U.S. by year end 2017 and the second international trial planned for the first half of 2018. Both trials will be randomized double-blind placebo-controlled trials of I.V. CR845 at a dose of 0.5 micrograms per kilo versus placebo administered three times per week that is after scheduled dialysis sessions over a 12-week treatment period. The primary efficacy endpoint will evaluate the change from baseline to week 12 in the average worst daily itch intensity as measured on a numeric rating scale or NRS scale. Secondary endpoints will measure aspects of quality of life using previously validated self-assessment scales that is the Skindex-10 and the 5DH scales. And you remember, we employed both of these scales in our previous completed Phase 2b trial. Overall, the 0.5 microgram per kilo CR845 dose, the dosing regimen and the primary and secondary endpoint tools for a pivotal Phase 3 trial design, all much those employed and are completed successful Phase 2b trial of I.V. CR845 in HD patients, with a 0.5 microgram per kilo dose met both primary that is itch reduction and secondly quality of life endpoints. And as an aside, we are presenting these data from the completed Phase 2b trial this week at the ongoing American Society for Nephrology’s Annual Meeting in New Orleans. Also as part of this Phase 3 program in Q2 of this year, we initiated a 52-week safety trial of I.V. CR845 at the same dose in HD patients. This long-term safety study continues to enroll patients who completed one of our prior Phase 2 trials and we look forward to updating you on the progress in each of these Phase 2 trials over the coming quarters. Moving away from pruritus and on to our ongoing acute postoperative pain program and our adaptive Phase 3 CLIN-3001 trial, where we expect to complete enrollment by year end or early 2018. As a reminder, this is a three arm trial testing 1 and 0.5 microgram per kilo of I.V. CR845 versus placebo in up to 450 patients undergoing various abdominal surgeries. Patients are dosed 1 hour prior to surgery and then receive a second dose in recovery along with subsequent doses at 6, 12 and 18 hours post surgery. The primary efficacy endpoint is the change in pain intensity over the 24-hour postoperative period using the area under the curve, or AUC measurement based again on the numeric rating scale score collected at pre-specified time points through 24 hours post-surgery. In addition, postoperative nausea and vomiting is also being evaluated as the secondary endpoint as well as use of rescue medication and the patient global assessment of post-surgical pain. So, as we said many times in these calls, pain management in the post-surgical setting remains an area of high unmet need and we look forward to updating you on the timing for readout from this trial in the coming months. Additionally, within our pain program, we will be presenting data from oral CR845’s completed Phase 2b trial in patients with osteoarthritis as the late-breaking poster and the upcoming meeting of the American College of Rheumatology and that occurs next week in San Diego. So with that summary, I will pass the call on to Mani Mohindru for our financial results. Mani?