Derek Chalmers
Analyst · Piper Jaffray
Thank you, Michael. And good afternoon, everybody. Thanks for being with us on this call this afternoon. So during the second quarter, we've certainly made significant progress, executing on our overall corporate strategy of advancing KORSUVA injection or I.V. CR845 into pivotal Phase III trials for CKD-associated pruritus in hemodialysis patients, whilst also working on expanding the clinical application for KORSUVA into additional renal, hepatic and dermatological patient populations where pruritus continues to be an unmet clinical need. In recent months, we've also signed an important strategic license agreement with Vifor Fresenius Medical Care Renal Pharma or Vifor Fresenius that positions us well for the commercialization of KORSUVA injection in hemodialysis patients essentially worldwide. We've also completed a successful follow-on offering of approximately $92 million to fund the expansion of oral KORSUVA and to additional pruritus indications, and we've reported on positive data with I.V. CR845 and postoperative pain and postoperative nausea and vomiting. So what I'd like to do is, during the call today I'll provide some additional color on each of these specific areas. Let me start with KORSUVA injection in hemodialysis patients with moderate-to-severe pruritus. Our lead program, of course, for which the FDA granted us breakthrough therapy designation in 2017. As we've discussed previously on these calls, our first Phase III efficacy trial or KALM-1 trial began enrolling patients back in January of this year. And we're very pleased to announced today that we've dosed the first patients in our second Phase III global trial of KORSUVA injection for this indication. Both Phase III trials are designed to investigate the efficacy of KORSUVA injection at a dose of 0.5 micrograms per kilo versus placebo, administered TIW or 3x per week after scheduled dialysis sessions over a 12-week total treatment period. 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 numerical rating scale. Now as a reminder, and a post-hoc analysis of our completed Phase II B trial, with a proportion of patients with an improvement from baseline in the weekly mean worst itching score of greater than or equal to 3 points at week 8 was statistically significantly higher in the KORSUVA 0.5 microgram dose compared to the placebo group being 64%, and KORSUVA-treated patients 30% versus 29% in placebo. Secondary endpoints in the Phase III trial again match our Phase II design and will measure aspects of itch related to quality of life, using validated self-assessment scales of Skindex-10 and the 5-D itch as well as the proportion of patients achieving a greater than or equal to 4-point improvement from baseline and the weekly mean of the daily worst itch intensity scores at week 12. We're pleased to report today that enrollment is progressing well for the KALM-1 trial, with 56 U.S. sites now active for enrollment. Dosing the patients in the KALM-2 trial, as I said earlier, is underway, and we expect announced data readouts from both our KALM-1 and KALM-2 trials in 2019. Also in Q2, we're very happy to execute a strategic license agreement for I.V. KORSUVA for the treatment of CKD-associated pruritus in dialysis patients, with Vifor Fresenius Medical Care Renal Pharma, a global leader in providing treatment and services for dialysis patients. Under the terms of this deal Vifor Fresenius will commercialize KORSUVA injection for dialysis patients worldwide, excluding the U.S., Japan and South Korea, while Cara retains all commercial rights in the U.S. The key financial terms of the agreement include an upfront payment of $70 million, comprising of $50 million in cash and $20 million in equity investment at a premium price. Also, up to $470 million in regulatory and commercial milestones and tier double-digit royalties on KORSUVA sales in the licensed territories. In addition, Cara and Vifor Fresenius will copromote KORSUVA injection in U.S. Fresenius dialysis clinics under a 50-50 profit sharing agreement, with all U.S. sales booked by Cara. Now we believe this particular copromotion agreement leveraging an established dialysis focused sales force will add significant launch momentum in the U.S. for KORSUVA injection, if approved. With respect to potential reimbursement of KORSUVA injection in the dialysis setting, once launched, we're also encouraged by the recently announced 2019 proposed rulemaking update from CMS, proposing that all new injectable are I.V. equivalent drugs approved for use in the dialysis patient setting after January 2019 would automatically be reimbursed [indiscernible] the ESRD bundle payment at ASP for a period of two years, as part of the Transitional Drug Add-On Payment Adjustment or TDAPA path system. Moving on from I.V, CR845 to our oral KORSUVA program in pre-dialysis stage III-V CKD patients with moderate-to-severe pruritus. Current CDC estimates indicate that approximately 50% of diagnosed CKD patients are stage III-V, and an estimated 25% of these suffer from moderate-to-severe CKD-associated pruritus. In July of this year, we announced we initiated a Phase II trial in less patient population, examining the safety and efficacy of 3 tablets strengths of oral KORSUVA, 0.25 milligrams, 0.5 milligrams and 1-milligram administered once daily versus placebo and approximately 250 stage III-V CKD patients with moderate-to-severe pruritus. Site initiations and enrollment are progressing as planned. And we look forward to updating you on this trial in our next guidance call. Based on this mechanism of action mediated by capital receptor, of course, on peripheral sensory nerves and certain immune cells, we believe that KORSUVA has the potential to be an important symptomatic treatment for pruritus across a range of clinical conditions. And throughout the remainder of this year, we plan to expand our clinical activities with oral KORSUVA beyond CKD and to additional patient populations, such as those with chronic hepatic or dermatological conditions, in which treatment resistant pruritus also remains a significant unmet medical need. The first opportunity we're pursuing is in chronic liver disease associated pruritus. And earlier this year, we initiated an open-label Phase I pecan safety trial to determine the appropriate tablet strengths to take forward into Phase II. And we aim to initiate that Phase II trial later this year or early in 2019. Finally, moving away from pruritus and into the acute postoperative setting. During Q2, we also reported positive top line results from our adaptive Phase II, III trial of I.V. CR845 in postop patients. This adaptive trial was a randomized double-blind placebo controlling trial designed to evaluate analgesic efficacy and safety of 2 doses of I.V. CR845.5 and 1-microgram per kilo versus placebo, given at prespecified intervals both pre and post surgery in 444 patients undergoing abdominal surgery. CR845 acute statistical significance for the primary endpoint of pain relief over 24 hours post surgery, with a 1-microgram per kilo dose versus placebo, and then additional improvement in PNAUC results was statistically significant for both the 0.5 and the 1-microgram per kilo doses over 0 to 6 and the 0- to 12-hour periods post surgery. I.V. CR845 also exhibited statistically significant effects on secondary endpoints related to postoperative nausea and vomiting. At 6 and 24 hours after baseline dose post surgery, there were statistically significant improvements in PONV impact scores with both doses of I.V. CR845 compared to placebo. And additionally, total use of antiemetic medication over the first 24-hour period post surgery was significantly different from placebo with both doses of 845, supporting CR845's overall efficacy in reducing nausea and vomiting in the postop period. The percentage of patients who did not take any anti-medication over 24 hours was 56% for placebo compared to 70% for 845 0.5-microgram dose and 81% for 845 1-microgram per kilo dose. And overall, there was a 73% reduction in the incidence of patient-reported vomiting in the group receiving the 1-microgram per kilo dose. So given the well-established relationship between postoperative nausea and vomiting and delayed patient recovery, and the notability of I.V. CR845 to robustly diminish PONV in this trial, we're currently evaluating the best next steps for this program, including discussions with regulators as to the optimum path forward. And we look forward to updating you on those discussions when they occur. So I'd now like to turn over the call to Mani Mohindru, who'll discuss our financials for the second quarter. Mani?