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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 Oct 24, 2026, 5:03 AM 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
Sep 2016 (Type not available)
Primary completion
May 2017 (Actual)
Completion
Jun 2017 (Actual)
Last update posted
Oct 20, 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.

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 20, 2020 · Synced Oct 24, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT02944448 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →