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Completed Phase 2 Interventional Results available

A Study Evaluating Pain Relief and Safety of Orally Administered CR845 in Patients With Osteoarthritis of Hip or Knee

ClinicalTrials.gov ID: NCT02944448

Public ClinicalTrials.gov record NCT02944448. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 5, 2026, 12:23 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Randomized, Double-Blind, Placebo-Controlled, Titration-to-Effect Study of Orally Administered CR845 in Patients With Osteoarthritis of the Hip or Knee

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The study schedule consists of a Screening Period (up to 14 days), a blinded 4- week Titration-to-Effect Period with weekly visits, a blinded 4-week Maintenance Treatment Period at the optimal dose level determined for each patient, and a 1-week Follow-up Period. Eligible patients will be randomized to receive either CR845 or placebo in a 2:1 ratio. Every patient will be started on a 1-mg dose of CR845 or matching placebo. During the post-randomization Titration-to-Effect period, the dose of study drug may be increased to 2.5 mg or 5 mg in a double-blind fashion. Patients may know their dose is being changed but will not know whether they were randomization to active study drug or placebo. Approximately 330 patients will be enrolled in this study.

Study identification

NCT ID
NCT02944448
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
Cara Therapeutics, Inc.
Industry
Enrollment
761 participants

Conditions and interventions

Eligibility (public fields only)

Age range
25 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Aug 31, 2016
Primary completion
Apr 30, 2017
Completion
May 31, 2017
Last update posted
Oct 19, 2020

2016 – 2017

United States locations

U.S. sites
35
U.S. states
16
U.S. cities
32
Facility City State ZIP Site status
Cara Therapeutics Study Site Birmingham Alabama 35216
Cara Therapeutics Study Site Peoria Arizona 85351
Cara Therapeutics Study Site Phoenix Arizona 85023
Cara Therapeutics Study Site Carmichael California 95608
Cara Therapeutics Study Site San Diego California 92123
Cara Therapeutics Study Site Tustin California 92780
Cara Therapeutics Study Site Homestead Florida 33030
Cara Therapeutics Study Site Jupiter Florida 33458
Cara Therapeutics Study Site Lake Worth Florida 33462
Cara Therapeutics Study Site Miami Florida 33183
Cara Therapeutics Study Site Oldsmar Florida 34677
Cara Therapeutics Study Site Orlando Florida 32806
Cara Therapeutics Study Site Plantation Florida 33317
Cara Therapeutics Study Site South Miami Florida 33143
Cara Therapeutics Study Site Tampa Florida 33634
Cara Therapeutics Study Site Savannah Georgia 31406
Cara Therapeutics Study Site Hazelwood Missouri 63042
Cara Therapeutics Study Site Omaha Nebraska 68134
Cara Therapeutics Study Site Las Vegas Nevada 89144
Cara Therapeutics Study Site Berlin New Jersey 08009
Cara Therapeutics Study Site Binghamton New York 13901
Cara Therapeutics Study Site Rochester New York 14609
Cara Therapeutics Study Site Cincinnati Ohio 45242
Cara Therapeutics Study Site Cincinnati Ohio 45246
Cara Therapeutics Study Site Oklahoma City Oklahoma 73119
Cara Therapeutics Study Site Duncansville Pennsylvania 16635
Cara Therapeutics Study Site Charleston South Carolina 29406
Cara Therapeutics Study Site Charleston South Carolina 29407
Cara Therapeutics Study Site Greenville South Carolina 29601
Cara Therapeutics Study Site Austin Texas 78731
Cara Therapeutics Study Site Dallas Texas 75234
Cara Therapeutics Study Site Plano Texas 75024
Cara Therapeutics Study Site Plano Texas 75075
Cara Therapeutics Study Site San Antonio Texas 78209
Cara Therapeutics Study Site Charlottesville Virginia 22911

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Recently updated Osteoarthritis, Hip trials

Other public records listing Osteoarthritis, Hip. Sorted by last update posted; newest first. Not a recommendation.

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About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT02944448, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Oct 19, 2020 · Synced Sep 5, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT02944448 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →