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The efficacy and safety of two doses of strontium ranelate versus placebo, administered orally for three years in the treatment of knee osteoarthritis
ISRCTN ISRCTN41323372
ClinicalTrials.gov identifier
Public title The efficacy and safety of two doses of strontium ranelate versus placebo, administered orally for three years in the treatment of knee osteoarthritis
Scientific title
Acronym N/A
Serial number at source CL3-12911-018
Study hypothesis To demonstrate the superiority of strontium ranelate versus placebo against articular cartilage damage progression over three years in men and women with knee osteoarthritis

Please note, as of 01/03/2011 the following updates have been made to this record:
-The anticipated end date for this trial has been moved from 15/04/2009 to 30/03/2011
-The public title has been updated. The previous title was 'The efficacy and safety of two doses of strontium ranelate versus placebo, administered orally for two years in the treatment of knee osteoarthritis. A prospective multicentre, international, double-blind, placebo-controlled study'.
- The study hypothesis has been updated. The previous hypothesis was 'To demonstrate the superiority of strontium ranelate versus placebo against articular cartilage damage progression over two years in men and women with knee osteoarthritis'.
- The target number of participants has been increased from 960 to 1680.
Lay summary
Ethics approval First ethics committee approval given by the Ethical Committee of the Ospitalieri Institute of Verona on 14/12/2005, reference number: 1260)
Study design A prospective multicentre, international, double-blind, placebo-controlled study
Countries of recruitment Australia, Austria, Belgium, Canada, Czech Republic, Denmark, Estonia, France, Germany, Italy, Lithuania, Netherlands, Poland, Portugal, Romania, Russian Federation, Spain, United Kingdom
Disease/condition/study domain Osteoarthritis
Participants - inclusion criteria 1. Caucasian men and women of at least 50 years of age
2. Primary knee osteoarthritis
3. Under effective contraceptive method for non-menopausal women
Participants - exclusion criteria 1. Knee prosthesis already implanted or foreseen within the next year
2. Hip prosthesis recently implanted (<1 year) or not well-tolerated, or foreseen within the next year
Anticipated start date 15/04/2006
Anticipated end date 30/03/2011
Status of trial Completed
Patient information material
Target number of participants Added 01/03/2011: 1680 (960 at time of registration)
Interventions Strontium ranelate versus placebo
Primary outcome measure(s) Radiographic assessment of knee osteoarthritis
Secondary outcome measure(s) 1. Algofunctional assessment
2. Physical examination
3. Safety
Sources of funding Institut de Recherches Internationales Servier (France)
Trial website
Publications
Contact name Prof  Cyrus  Cooper
  Address University of Southampton
Southampton General Hospital
  City/town Southampton
  Zip/Postcode SO16 6YD
  Country United Kingdom
Sponsor Institut de Recherches Internationales Servier (France)
  Address 6 Place des Pléiades
  City/town Courbevoie
  Zip/Postcode 92415
  Country France
Date applied 05/05/2006
Last edited 01/03/2011
Date ISRCTN assigned 13/06/2006
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