americanpharmaceuticalreviewJune 28, 2019
Tag: trial , Cara Therapeutics , Second
Enteris BioPharma congratulates Cara Therapeutics on the successful initiation of its Phase 2 clinical trial of Oral KORSUVA™ (CR845/difelikefalin) for the treatment of pruritus in patients with hepatic impairment due to primary biliary cholangitis (PBC). The tablet formulation of Oral KORSUVA was engineered using Enteris' proprietary oral peptide delivery technology, Peptelligence®.
The Oral KORSUVA Phase 2 initiation in pruritis associated with PBC follows a Phase 1 trial in patients with hepatic impairment, which successfully established the Oral KORSUVA tablet strength. Building upon that study, the Phase 2 trial is a multicenter, randomized, double-blind, placebo-controlled 16-week trial designed to evaluate the safety and efficacy of 1 mg tablet of Oral KORSUVA taken twice daily (BID) versus placebo in approximately 60 patients with PBC and moderate-to-severe pruritus. The primary efficacy endpoint is the change from baseline in the weekly mean of the daily 24-hour Worst Itch Numeric Rating Scale (WI-NRS) score at Week 16 of the treatment period. Oral KORSUVA is currently the subject of a separate Phase 2 clinical trial for the treatment of pruritus in stage III-V chronic kidney disease (CKD).
The oral tablet formulation of CR845/difelikefalin was developed in accordance with a Manufacturing and Clinical Supply Agreement whereby Enteris utilized its Peptelligence technology to enable the active ingredient, which was initially formulated for I.V. or injection administration, to be delivered orally. Under the terms of the "Feasibility-to-Licensing" program, Enteris will continue to manufacture the oral tablet formulation of CR845/difelikefalin for current and potential future studies through Phase 2 that Cara Therapeutics elects to pursue. Cara Therapeutics has the opportunity to negotiate a Phase 3/commercial license to the Peptelligence technology for oral CR845/difelikefalin from Enteris at any time.
"We congratulate Cara Therapeutics on advancing Oral KORSUVA into a second pruritus Phase 2 clinical trial. This is another significant milestone for Cara and highlights the important, ongoing relationship between Cara and Enteris," said Joel Tune, chief executive officer and executive chairman of Enteris BioPharma. "With Cara now actively evaluating Oral KORSUVA in two separate Phase 2 clinical trials, while we advance our own Phase 2 program for Ovarest™ in endometriosis, evidence continues to mount suggesting that Peptelligence has the potential to enable the oral delivery of peptide therapeutics across multiple drug compounds and disease indications."
"We are pleased with our ongoing work with Enteris and are excited to advance a second Oral KORSUVA program in a pruritis setting into Phase 2," said Derek Chalmers, Ph.D., D.Sc., president and chief executive officer of Cara Therapeutics. "Pruritus continues to be a significant comorbidity in patients with chronic cholestatic liver diseases and may be exacerbated by certain bile acid-related drugs. We believe that Oral KORSUVA may provide a potential new, first-in-class therapeutic approach to treat this unmet clinical need."
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