Hyaluronan Versus NaCl 20 Ml Versus Placebo in Knee Osteoarthritis

Study Overview
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Brief Summary
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251 consecutive patients with knee arthrosis were randomized to one of three interventions: Four weekly injections of 2 ml isotonic saline (placebo), 2 ml sodium hyaluronate (hyaluronan) or 20 ml isotonic saline (excessive saline). They all suffered from clinically and radiologically verified arthrosis of the knee with daily pain that did not respond to treatment with analgetics. Results were evaluated at weeks 1,2,3,4,8,12,16 and 26. Biochemical markers for bone and cartilage degradation were measured in urine/blood.

Official Title
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Intra-Articular Injections of Hyaluronan Versus 20 Ml NaCl Versus Placebo in Treatment of Knee Osteoarthritis: a Randomised, Double-Blind, Placebo Controlled Single Centre Trial.

Conditions
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Osteoarthritis, Knee

Intervention / Treatment
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* Drug: Injection of Hyaluronan or Saline


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients, men/women age > 60 years with clinical, Radiological and possible arthroscopical verified knee osteoarthritis. Knee pain on the day of examination scoring more than 20 mm on a visual analogue scale (VAS) at baseline. Exclusion Criteria: Age below 60 Unconsciousness Psychosis Demens Ingestion of drugs that may influence the results of the clinical examinations Inflammatory diseases of the joints Rheumatoid arthritis or other inflammatory arthritis as diagnosed by American College of Rheumatology criteria Contraindication to hyalgan treatment Previous intraarticular fracture of a knee joint Infection or skin disease located at the place of injection and invasive procedures done to the knee joint within previous two months inclusive intra-articular injections of steroids. Any other condition that might interfere with the efficacy assessment or completion of the trial.

Ages Eligible for Study
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Minimum Age: 60 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Intervention/Treatment |
| --- |
|Drug: Injection of Hyaluronan or Saline|nan|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Pain measured on a visual scale on movement (VAS-movement) |  |  | 
| At rest (VAS-rest) |  |  | 
| During the night (VAS-night) |  |  | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| KOOS scores (knee injury and osteoarthritis outcome score) |  |  | 
| Daily consumption of analgetics |  |  | 
| Cartilage and bone degradation markers |  |  | 
| The quadriceps circumference (cm), ability to bend (degrees flexion) and stretch (degrees extension) the knee joint |  |  | 
| Global assessment patient |  |  | 
| Global assessment investigator |  |  | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Hyaluronan, Gonarthrosis, Osteoarthritis,knee, Double-blinded, Placebo controlled, Randomised