Derek Chalmers
Analyst · Piper Jaffray. Your line is now open
Thanks, Michael. Good afternoon, everybody. And thanks for joining us on the call, especially today. During the third quarter, we continue to execute on the clinical development of KORSUVA or CR845 across our pipeline for pruritus. We are especially pleased with the progress in our lead Phase 3 program for KORSUVA Injection and Chronic Kidney Disease Associated Pruritus or CKD-aP Hemodialysis patients, where we’re on track with patient enrolment and both ongoing, pivotal efficacy trials. We also have an active development program for Oral KORSUVA for pruritus across a range of clinical conditions, including a Phase 2 trial for pre-dialysis patients that is stage III to V with CKD-aP and a Phase 1 trial for patients with chronic liver disease to support an upcoming Phase 2 trial in patients with chronic liver disease associated pruritus. Overall, we are happy with the progression and pace of our clinical activity this quarter and I’ll provide greater detail on each of our programs as we go through the call today. Taking a step back to begin and as a reminder, KORSUVA is of course our novel first-in-class selective peripherally acting kappa opioid receptor agonists designed to function with traditional opioid side effects, including diminished [ph] abuse liability due to its unique pharmacology and very importantly its chemistry and the clinical data we presented to date in pruritus and the acute postop pain setting overall greater than 2000 patients are certainly supportive of that target profile. To start, I'd like to first focus on our most advanced program KORSUVA Injection and CKD patients on haemodialysis with moderate to severe pruritus for which we receive breakthrough designation in 2017. As we've discussed previously, the design of our pivotal Phase 3 program includes three currently ongoing trials, a U.S. Phase 3 efficacy trial or KALM-1, our global Phase 3 efficacy trial designated KALM-2 and a Phase 3 open label extension safety study. We began dosing patients in KALM-1 and KALM-2 in January and August of this year respectively and we're pleased to report that enrollment remains on track and is progressing well. We have approximately 60 U.S. sites active in KALM-1 and aim to have 50% of our targeted 80 sites for KALM-2 active by year end, with a current target goal of enrolling 350 patients in both trials. Both KALM-1 and KALM-2 trials are designed to investigate the efficacy of KORSUVA Injection at a dose of 0.5 micrograms per kilo versus placebo, administered three times per week or TIW after scheduled dialysis sessions. Over a 12 week treatment period with a 52 week open label extension phase. The primary efficacy endpoint is the proportion of patients achieving at least a 3-point improvement from baseline at week-12, with respect to the weekly mean of the daily worst itch intensity score measured on a standard numeric rating scale or NRS. Secondary endpoints in the Phase 3 trials measure aspects of itch-related quality of life using validated self-assessment scales, the Skindex-10 and the 5-D Itch as employed in our completed successful Phase 2b trial, as well as the proportion of patients achieving greater than or equal to 4 point improvement from baseline and weekly mean of the worst etching NRS score at week 12. Both KALM-1 and KALM-2 trials are designed with a pre-specified interim assessment after approximately 50% of patients complete the treatment period and that's allows for expansion of the study up to 500 patients based on desired power for endpoint analysis. Based on the current status for KALM-1, we anticipate the completion of the interim assessment for this trial by year end 2018 or early 2019 and completion of the 12 week treatment period for the full trial within the first half of 2019. The open label long-term safety extension study, the third ongoing Phase 3 trial in the program is also on track. This 52 week study is designed to evaluate the safety of KORSUVA Injection in up to 240 patients. We have over 175 patients enrolled in the study so far with approximately 50% of patients complete at six months of treatment with a number of these through one year of treatment. To date, we have recorded no unexpected adverse events. We remain very pleased with the progress on our Phase 3 pivotal program for KORSUVA Injection overall and we expect to announce data from both KALM-1 and KALM-2 trials in 2019. So CKD-aP is an area of significant unmet clinical need in both dialysis and pre-dialysis patients. In the U.S. alone based on generic providers related script numbers we estimate that approximately 2.5 million CKD stage 3 to 5 patients experience pruritus with no FDA approved therapies. With next patient population in mind, in July of last year we began dosing patients in the U.S. phase 2 trial for oral KORSUVA for the treatment of CKD-aP in stage 3 to 5 patients. This trial is a multi-center randomized double blind placebo controlled 12 week trial designed to evaluate the safety and efficacy of three dose levels of oral KORSUVA of point 2 5 migs, 0.5 megs and one migs given once daily compared to placebo. The exposures achieved with oral KORSUVA tablet in this range were approximately equivalent to the exposure level achieved with 0.5 migs per kilo dose of IV KORSUVA that exhibits – that exhibited statistically significant and clinically meaningful reduction in itch intensity in hemodialysis patients in our previous Phase 2b trial. The primary efficacy endpoint is a change from baseline and the weekly mean of the daily 24 worst itch, numerical rating scale score at week 12 of the treatment period. Secondary endpoints include change from baseline and itch-related quality of life scores as assessed by the total Skindex-10 and 5-D itch, as well as a proportion of patients achieving an improvement from baseline or greater than or equal to 3 points with respect to the weekly mean of the worst itch NRS score at week 12. We plan to enroll 240 patients, 60 per arm in this trial, and we'll conduct an un-blended interim analysis of 50% enrollment for those who have completed 12 week of treatment that allows for expansion of the study up to 480 patients. We are pleased that this trial is on track with currently greater than 35 active sites, and we expect to reach our target of 60 clinical sites by year-end. We're also exploring the potential of Oral KORSUVA in chronic liver disease associated pruritus, which affects approximately 20% to 30% of patients with cholestatic chronic liver disease. Our phase I PK and safety trial of Oral KORSUVA and mild, moderate and severe liver disease patients is now fully enrolled, and we expect to enhance top line data within the fourth quarter of this year with the aim of initiating Phase 2 trial of Oral KORSUVA for the treatment of chronic liver disease associated pruritus by year-end or early 2019. As I mentioned in past calls since KORSUVA's mechanism of action is mediated by kappa receptors on peripheral sensory occurrence [ph] and so in immune cells, we believe that this therapy may serve as an important treatment for pruritus across a range of clinical conditions, including dermatological conditions in which treatment resistant pruritus remains a significant unmet medical need. In this regard, we were very pleased to recently announce we have expanded the Cara executive team with the addition of Dr. Joana Goncalves, as Chief Medical Officer. Joana joined the team in October 2018 from Celgene where she most recently served as Vice President for Medical Affairs for Dermatology and Neurology, and she brings extensive clinical development and medical affairs expertise to the Cara team, particularly with novel dermatology products. And we look forward to guiding on our clinical development plans for Oral KORSUVA in dermatological conditions in the very near future. And with that, I'd now like to turn the call over to Mani, who will discuss our financials for the third quarter. Mani?