Study to Evaluate the Efficacy and Safety of Oral Difelikefalin (CR845) for Moderate to Severe Pruritus in Subjects With Atopic Dermatitis

NCT ID: NCT04018027

Last Updated: 2022-04-04

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

401 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-06-29

Study Completion Date

2021-04-01

Brief Summary

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This is a multicenter, randomized, double-blind, 4-arm, placebo-controlled study to evaluate the efficacy and safety of twice-daily (BID) oral difelikefalin (CR845) in adult subjects with atopic dermatitis (AD) and moderate to severe pruritus.

Detailed Description

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The study will consist of a 30-day Screening period, a 7-day Run-In period, a 12-week Placebo-Controlled Treatment period followed by a 4-week Active Extension period and a Follow Up visit approximately 7 days after the last dose of study drug.

All subjects will sign an informed consent form (ICF) and undergo screening for study eligibility.

Subjects will be randomized to receive either placebo or difelikefalin (CR845) tablets at a dose of 0.25 mg, 0.5 mg, or 1.0 mg, orally BID. Intake of the first dose of study drug will be at Day 1.

Subjects who complete the Placebo-Controlled Treatment period of the study will transition into the Active Extension upon completion of the Week 12 visit assessments. All subjects in the Active Extension will receive difelikefalin (CR845).

Conditions

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Pruritus Atopic Dermatitis

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Difelikefalin 0.25 mg

Oral difelikefalin 0.25 mg tablet administered twice daily

Group Type ACTIVE_COMPARATOR

difelikefalin 0.25 mg

Intervention Type DRUG

Oral difelikefalin 0.25 mg administered twice daily

Difelikefalin 0.5 mg

Oral difelikefalin 0.5 mg tablet administered twice daily

Group Type ACTIVE_COMPARATOR

difelikefalin 0.5 mg

Intervention Type DRUG

Oral difelikefalin 0.5 mg administered twice daily

Difelikefalin 1.0 mg

Oral difelikefalin 1.0 mg tablet administered twice daily

Group Type ACTIVE_COMPARATOR

difelikefalin 1.0 mg

Intervention Type DRUG

Oral difelikefalin 1.0 mg administered twice daily

Placebo

Oral placebo tablet administered twice daily

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Oral Placebo administered twice daily

Interventions

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difelikefalin 0.25 mg

Oral difelikefalin 0.25 mg administered twice daily

Intervention Type DRUG

difelikefalin 0.5 mg

Oral difelikefalin 0.5 mg administered twice daily

Intervention Type DRUG

difelikefalin 1.0 mg

Oral difelikefalin 1.0 mg administered twice daily

Intervention Type DRUG

Placebo

Oral Placebo administered twice daily

Intervention Type DRUG

Other Intervention Names

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CR845 CR845 CR845

Eligibility Criteria

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Inclusion Criteria

To be eligible for inclusion into the study, a patient must meet the following criteria:

* Subject has clinically confirmed diagnosis of active AD;
* Subject has at least a 12-month history of AD;
* Subject has chronic itch related to AD;
* Subject has moderate to severe pruritus;
* Female subject is not pregnant or nursing during any period of the study.

Exclusion Criteria

A patient will be excluded from the study if any of the following criteria are met:

* Subject has clinically infected AD;
* Subject has pruritus attributed to a cause other than AD;
* Subject has any clinically significant medical condition or physical/laboratory/ECG/vital signs abnormality that would, in the opinion of the investigator, put the subject at undue risk or interfere with interpretation of study results.
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Cara Therapeutics, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Kristine Nograles

Role: STUDY_DIRECTOR

Cara Therapeutics

Locations

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Cara Therapeutics Study Site

Anniston, Alabama, United States

Site Status

Cara Therapeutics Study Site

Birmingham, Alabama, United States

Site Status

Cara Therapeutics Study Site

Scottsdale, Arizona, United States

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Cara Therapeutics Study Site

Bryant, Arkansas, United States

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Cara Therapeutics Study Site

Fountain Valley, California, United States

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Cara Therapeutics Study Site

Lomita, California, United States

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Cara Therapeutics Study Site

Cromwell, Connecticut, United States

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Cara Therapeutics Study Site

Farmington, Connecticut, United States

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Cara Therapeutics Study Site

Aventura, Florida, United States

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Cara Therapeutics Study Site 2

Miami, Florida, United States

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Cara Therapeutics Study Site

Miami, Florida, United States

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Cara Therapeutics Study Site

Miami Lakes, Florida, United States

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Cara Therapeutics Study Site

Ocala, Florida, United States

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Cara Therapeutics Study Site

Sarasota, Florida, United States

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Cara Therapeutics Study Site

Sweetwater, Florida, United States

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Cara Therapeutics Study Site

Columbus, Georgia, United States

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Cara Therapeutics Study Site

Boise, Idaho, United States

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Cara Therapeutics Study Site 2

Boise, Idaho, United States

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Cara Therapeutics Study Site

Baton Rouge, Louisiana, United States

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Cara Therapeutics Study Site

Metairie, Louisiana, United States

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Cara Therapeutics Study Site

New Orleans, Louisiana, United States

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Cara Therapeutics Study Site

Brighton, Massachusetts, United States

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Cara Therapeutics Study Site 2

Las Vegas, Nevada, United States

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Cara Therapeutics Study Site

Berlin, New Jersey, United States

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Cara Therapeutics Study Site

Horseheads, New York, United States

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Cara Therapeutics Study Site

New York, New York, United States

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Cara Therapeutics Study Site

New York, New York, United States

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Cara Therapeutics Study Site

Cleveland, Ohio, United States

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Cara Therapeutics Study Site

Oklahoma City, Oklahoma, United States

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Cara Therapeutics Study Site

Tulsa, Oklahoma, United States

Site Status

Cara Therapeutics Study Site

Medford, Oregon, United States

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Cara Therapeutics Study Site

Rapid City, South Dakota, United States

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Cara Therapeutics Study Site 2

Austin, Texas, United States

Site Status

Cara Therapeutics Study Site

Austin, Texas, United States

Site Status

Cara Therapeutics Study Site

Cypress, Texas, United States

Site Status

Cara Therapeutics Study Site

Dallas, Texas, United States

Site Status

Cara Therapeutics Study Site

Salt Lake City, Utah, United States

Site Status

Cara Therapeutics Study Site

Richmond, Virginia, United States

Site Status

Cara Therapeutics Study Site

London, Ontario, Canada

Site Status

Cara Therapeutics Study Site

Montreal, Quebec, Canada

Site Status

Countries

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United States Canada

Other Identifiers

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CR845-210501

Identifier Type: -

Identifier Source: org_study_id

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