Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 22, 2026, 2:22 AM EDT

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Showing 1–7 of 7 matching trials from the live ClinicalTrials.gov search.
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Conditions
Chronic Kidney Diseases, Pruritus
Interventions
CR845 0.25 mg Oral Tablet, CR845 0.5 mg Oral Tablet, CR845 1 mg Oral Tablet, Placebo Oral Tablet
Drug
Lead sponsor
Cara Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
269 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
60
States / cities
Birmingham, Alabama • Florence, Alabama • Phoenix, Arizona + 52 more
Conditions
Post Abdominal Surgery Pain
Interventions
CR845 IV 1 mcg/kg, CR845 IV 0.5 mcg/kg, Placebo IV
Drug
Lead sponsor
Cara Therapeutics, Inc.
Industry
Eligibility
21 Years and older
Enrollment
451 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
23
States / cities
Sheffield, Alabama • New Haven, Connecticut • Bradenton, Florida + 20 more
Conditions
Chronic Kidney Diseases, Pruritus
Interventions
Difelikefalin 1 mg Oral Tablet, Placebo Oral Tablet
Drug
Lead sponsor
Cara Therapeutics, Inc.
Industry
Eligibility
18 Years to 85 Years
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
9
States / cities
Northridge, California • Miami, Florida • Miami Lakes, Florida + 5 more
Conditions
Osteoarthritis
Interventions
CR845 0.25 mg, CR845 0.50 mg, CR845 1 mg, CR845 5 mg
Drug
Lead sponsor
Cara Therapeutics, Inc.
Industry
Eligibility
25 Years and older
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
5
States / cities
Omaha, Nebraska • Las Vegas, Nevada • Greensboro, North Carolina + 2 more
Conditions
Osteoarthritis, Hip, Osteoarthritis, Knee, Arthritis, Joint Diseases, Musculoskeletal Diseases, Rheumatic Diseases
Interventions
CR845 tablet 1 mg, CR845 tablet 2.5 mg, CR845 tablet 5 mg, Placebo tablet
Drug
Lead sponsor
Cara Therapeutics, Inc.
Industry
Eligibility
25 Years and older
Enrollment
761 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
35
States / cities
Birmingham, Alabama • Peoria, Arizona • Phoenix, Arizona + 29 more
Conditions
Acute Pain
Interventions
CR845, Placebo
Drug
Lead sponsor
Cara Therapeutics, Inc.
Industry
Eligibility
21 Years to 60 Years · Female only
Enrollment
114 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
12
States / cities
Mobile, Alabama • Sheffield, Alabama • Phoenix, Arizona + 7 more
Conditions
Chronic Kidney Diseases, Pruritus
Interventions
Difelikefalin 1 mg Oral Tablet, Placebo Oral Tablet
Drug
Lead sponsor
Cara Therapeutics, Inc.
Industry
Eligibility
18 Years to 85 Years
Enrollment
286 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
83
States / cities
Huntsville, Alabama • Phoenix, Arizona • Surprise, Arizona + 76 more