STAMFORD -
The trial has enrolled 400 patients at multiple clinical sites across
'Full enrollment of the KARE Phase 2 trial on schedule represents an important milestone for the clinical development of Oral KORSUVA. We look forward to reporting topline data from this trial in early 2021,' said
KARE Phase 2 Trial Design
The KARE Phase 2 trial is a randomized, double-blind, placebo-controlled study that is designed to evaluate the efficacy and safety of Oral KORSUVA for moderate-to-severe pruritus in approximately 400 adult subjects with atopic dermatitis. Subjects were randomized to three tablet strengths of Oral KORSUVA: 0.25 mg, 0.5 mg and 1 mg taken twice daily (BID) versus placebo for 12 weeks followed by 4 weeks of an active extension phase.
KARE's primary efficacy endpoint is change from baseline in the weekly mean of the daily 24-hour Itch NRS score at week 12 of the treatment period. The key secondary endpoint for KARE is the assessment of the proportion of patients achieving an improvement from baseline of 4 points with respect to the weekly mean of the daily 24-hour Itch NRS score at week 12. Itch-related quality of life scores at the end of week 12 are assessed by the total
A prespecified interim conditional power assessment, conducted after approximately 50% of the originally targeted patient number completed the designated 12-week treatment period, was completed in the second quarter of this year. Based on the Independent Data Monitoring Committee's (IDMC) recommendation, the size of the KARE trial was increased by approximately 28%, from an original enrollment target of 320 patients to approximately 400 patients, to maintain the prespecified statistical power of 80 percent or greater on the trial's primary and key secondary endpoints of change from baseline in the weekly mean of the daily 24-hour Itch Numeric Rating Scale (Itch NRS) and proportion of patients achieving a >4 point improvement in Itch NRS score at week 12, respectively.
About
The FDA has conditionally accepted KORSUVA as the trade name for difelikefalin injection. CR845/difelikefalin is an investigational drug product and its safety and efficacy have not been fully evaluated by any regulatory authority.
Forward-looking Statements
Statements contained in this press release regarding matters that are not historical facts are 'forward-looking statements' within the meaning of the Private Securities Litigation Reform Act of 1995. Examples of these forward-looking statements include statements concerning the ongoing trials, including the timing for reporting topline data, future development of Oral KORSUVA for pruritus in patients with atopic dermatitis and the potential for Oral KORSUVA to be a first-in-class anti-pruritic product with a favorable safety profile for these patients. Because such statements are subject to risks and uncertainties, actual results may differ materially from those expressed or implied by such forward-looking statements. Risks are described more fully in Cara's filings with the
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