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Completed Phase 2 Interventional

Safety and Tolerability of 4975 in the Treatment of Moderate to Severe Knee Pain Due to Osteoarthritis (OA)

ClinicalTrials.gov ID: NCT00667654

Public ClinicalTrials.gov record NCT00667654. 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 7, 2026, 1:42 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 Phase 2, Open-label Study to Evaluate Safety and Tolerability, and to Explore the Efficacy, of Dosing Regimens of Intraarticular 4975 in Patients With Chronic Moderate to Severe Pain of the Knee Associated With Osteoarthritis

Brief summary

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

This study will evaluate dosing regimens of 4975 in terms of safety and tolerability when delivered as an intra-articular injection in the knee. Secondary objectives will be to explore the efficacy of 4975 in terms of onset, extent and duration of pain relief.

Study identification

NCT ID
NCT00667654
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
Centrexion Therapeutics
Industry
Enrollment
54 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
40 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
Jul 31, 2007
Primary completion
May 31, 2008
Completion
Jul 31, 2016
Last update posted
Dec 5, 2016

2007 – 2016

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Clinical Phamacology Study Group Worcester Massachusetts 01610

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 NCT00667654, 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 Dec 5, 2016 · Synced Sep 7, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00667654 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →