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Osteoarthritis of the KneePhase 2NCT00667654

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

A Phase 2 study testing CNTX-4975 in people with Osteoarthritis of the Knee, run by Centrexion Therapeutics at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

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. Read more about this study

Who is it for?
Ages 40 years and older
Conditions the study is for
Osteoarthritis of the Knee
What is being tested?
CNTX-4975
Could I receive a placebo?
No, everyone receives an active treatment
How many people
54 participants
Where
1 siteUnited States
Study dates
Aug 2007to Aug 2016
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 40 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male or female patients aged 40 years or over.
  • Body mass index (BMI) of 35 or less.
  • History of OA of the knee for at least 1 year and has experienced pain in the target area for at least six months.
  • X-Ray of the target knee.
  • Willing and able to complete the study procedures.

Who cannot join

  • Female patients who are pregnant or lactating or who plan to get pregnant.
  • Clinically significant form of joint disease other than OA.
  • Medical condition that could adversely impact the patient's participation, safety or affect the conduct of the study.
  • Prior major trauma in the target knee or major surgeries such as partial or total knee arthroplasty.
  • Arthroscopic surgery on the target knee within 6 months.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Clinical Phamacology Study Group

    Worcester, Massachusetts, 01610

Other trials in United States

About this study

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

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.

Read the detailed description

This is a single site study. The study drug, 4975, will be administered in various dosing regimens by intra-articular injection followed by an observation period of up to 12 weeks. Pain in the treated knee will be assessed before, during and after administration of the study drug.

Being tested
CNTX-4975
Keywords
Osteoarthritis, Knee
Medical subject headings
Osteoarthritis, Knee

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • CNTX-4975Drug

    Testing a range of dosing configurations to optimize patient tolerability

Study groups in NCT00667654
Study groupRoleWhat they receive
100-200 µg CNTX-4975Experimentalsingle dose
Receives: Drug: CNTX-4975
300-425 µg CNTX-4975ExperimentalTotal dose delivered as two separate lower doses
Receives: Drug: CNTX-4975
600-700 µg CNTX-4975ExperimentalTotal dose delivered as two separate lower doses
Receives: Drug: CNTX-4975
800 µg CNTX-4975ExperimentalTotal dose delivered as two separate lower doses
Receives: Drug: CNTX-4975
900-1000 µg CNTX-4975ExperimentalTotal dose delivered as two separate lower doses
Receives: Drug: CNTX-4975

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. To evaluate the safety of IA CNTX-4975 as measured by related AEs occurring on day of dosing measures of pain at prescribed times

    Measured: 12 Weeks

Secondary outcomes (2)
  1. Evaluate analgesic efficacy, as measured by the PGIC, following IA injection of CNTX-4975

    Measured: 12 Weeks

  2. Change from baseline to Week 12 in WOMAC subscale score

    Measured: Baseline to 12 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted28 Apr 2008 (estimated)
  2. Study startAug 2007
  3. Primary completionJun 2008
  4. Study completionAug 2016

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
54 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00667654
Sponsor's protocol ID
114-02P
Status last verified
Dec 2016
First submitted
23 Apr 2008
Last updated
6 Dec 2016
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing CNTX-4975 in people with Osteoarthritis of the Knee, run by Centrexion Therapeutics at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 6 Dec 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

To evaluate the safety of IA CNTX-4975 as measured by related AEs occurring on day of dosing measures of pain at prescribed times (time frame: 12 Weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Dec 2016.

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