title: Ketoprofen controlled release (CR) in the treatment of osteoarthrosis; a double blind, randomized multicentre study of single morning versus evening dose. Norwegian Study Group of General Practitioners.
abstract: OBJECTIVE
  To compare the morning and evening dose of 200 mg ketoprofen controlled release formulation with regard to both efficacy and GI tolerability.
  
  
  METHODS
  Double-blind, randomized multicentre prospective trial with cross-over design combined with a parallel design.
  
  
  METHODS
  One hundred and eight female and 55 male patients with osteoarthrosis in hip(s) or knee(s) necessitating treatment with nonsteroidal antiinflammatory drugs.
  
  
  METHODS
  The degrees of pain and stiffness and joint movement ability in joints with osteoarthrosis.
  
  
  RESULTS
  Both the morning and the evening dose demonstrated a significant effect (p < 0.01) on all efficacy variables. The reduction in degree of pain in the afternoon and in the evening was significantly higher (p < 0.01) for the morning dose. The total frequency and degree of gastrointestinal discomfort increased significantly (p < 0.01) during both treatment periods. The increases were mainly caused by increased gastric pain and constipation. No significant differences were found between the two regimes regarding tolerability.
  
  
  CONCLUSIONS
  Ketoprofen controlled release given once daily in the morning compared to the evening to patients with osteoarthrosis may increase the efficacy without reducing the tolerability of the drug.
authors.affiliation: Oslo Sanitetsforening Rheumatism Hospital, Norway.
authors.forename: O
authors.initials: O
authors.lastname: Vinje
authors.forename: H E
authors.initials: HE
authors.lastname: Fagertun
authors.forename: E
authors.initials: E
authors.lastname: Laerum
authors.forename: H
authors.initials: H
authors.lastname: Lund
authors.forename: S
authors.initials: S
authors.lastname: Larsen
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002940:Circadian Rhythm; D003692:Delayed-Action Preparations; D004311:Double-Blind Method; D004334:Drug Administration Schedule; D005260:Female; D006801:Humans; D007660:Ketoprofen / Q000008:administration & dosage* / Q000009:adverse effects; D007719:Knee Joint; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000188:drug therapy*; D015207:Osteoarthritis, Hip / Q000188:drug therapy*; D016059:Range of Motion, Articular / Q000187:drug effects
chemical_list: D003692:Delayed-Action Preparations; D007660:Ketoprofen