title: [Efficacy and safety of a fluid carbomer gel versus a conventional carbomer gel in dry eye treatment].
abstract: OBJECTIVE
  To compare the risk/benefit for C974P (a 0.25% fluid carbomer gel in a vial allowing dropwise instillation) versus a conventional carbomer gel.
  
  
  METHODS
  During this multicenter, randomized, investigator-masked trial, patients with dry eye syndrome were treated with C974P or C940. Control visits were planned on day 7, day 28 (efficacy evaluation) and day 56 (tolerance evaluation). The main criterion was dry eye symptoms globally assessed by a visual analog scale (VAS). The non-inferiority limit for the between-group difference of VAS changes was 10 mm.
  
  
  RESULTS
  In the population of 169 patients (87 patients for C974P, 82 for C940), C974P was at least as effective as C940 on symptoms (non-inferiority hypothesis confirmed). The mean VAS value fell by one third in the two groups. The objective signs improved identically in the two groups: corneal staining by fluorescein (p=0.96), rose Bengal score (p=0.73), and lacrimal break-up time (p=0.73). The dosage adaptation was slightly lower than three instillations per day (p=0.16). The adverse events were mild or moderate.
  
  
  CONCLUSIONS
  C974P galenic changes are able to reach the same level of efficacy on dry eye symptoms and ocular surface damages as the conventional tube carbomer gels.
authors.affiliation: Service d'Ophtalmologie, CHU Gabriel Montpied, 28, Place Henri Dunant, BP 69, 63003 Clermont-Ferrand.
authors.forename: F
authors.initials: F
authors.lastname: Chiambaretta
authors.forename: P
authors.initials: P
authors.lastname: Pouliquen
authors.forename: J-M
authors.initials: JM
authors.lastname: Menerath
authors.forename: F
authors.initials: F
authors.lastname: Pilotaz
authors.forename: H
authors.initials: H
authors.lastname: Rebika
authors.forename: D
authors.initials: D
authors.lastname: Rigal
mesh_terms: D000180:Acrylic Resins; D015352:Dry Eye Syndromes / Q000188:drug therapy*; D005260:Female; D005782:Gels; D006801:Humans; D008297:Male; D008875:Middle Aged; D011145:Polyvinyls / Q000627:therapeutic use*; D016037:Single-Blind Method
chemical_list: D000180:Acrylic Resins; D005782:Gels; D011145:Polyvinyls; C006912:carboxypolymethylene