title: [Causality relationship of drug adverse reactions: experience in the use of HIV-protease inhibitors].
abstract: OBJECTIVE
  To establish the exact cause and effect relationship between protease inhibitors (PIs) and adverse events.
  
  
  METHODS
  Prospective, cohort, multicenter study on HIV-positive patients who are beginning treatment with a PI. Causal relationships are evaluated using the RUCAM algorithm.
  
  
  RESULTS
  Since the beginning of the study 1207 patients have been enrolled. Average time of observation is 10.7 months. To date, 784 adverse events have been observed, distributed as follows: excluded 3.8%, improbable 18.5%, possible 41.3%, probable 30.1%, and highly probable 6.3%. Saquinavir shows a statistically significant difference in the rate of non-correlated events with respect to other groups.
  
  
  CONCLUSIONS
  Over 20% of adverse events during PI treatment are shown to be non-correlated to these drugs. Saquinavir shows the highest rate of non-correlated events.
authors.affiliation: I Divisione Malattie Infettive, Ospedale L. Sacco, Milano, Italia. paolo.bonfanti@tin.it
authors.forename: P
authors.initials: P
authors.lastname: Bonfanti
authors.forename: L
authors.initials: L
authors.lastname: Valsecchi
authors.forename: F
authors.initials: F
authors.lastname: Parazzini
authors.forename: S
authors.initials: S
authors.lastname: Carradori
authors.forename: L
authors.initials: L
authors.lastname: Pusterla
authors.forename: P
authors.initials: P
authors.lastname: Fortuna
authors.forename: L
authors.initials: L
authors.lastname: Timillero
authors.forename: F
authors.initials: F
authors.lastname: Alessi
authors.forename: G
authors.initials: G
authors.lastname: Ghiselli
authors.forename: A
authors.initials: A
authors.lastname: Gabbuti
authors.forename: E
authors.initials: E
authors.lastname: Ricci
authors.forename: C
authors.initials: C
authors.lastname: Martinelli
authors.forename: I
authors.initials: I
authors.lastname: Faggion
authors.forename: S
authors.initials: S
authors.lastname: Landonio
authors.forename: T
authors.initials: T
authors.lastname: Quirino
mesh_terms: D000328:Adult; D005260:Female; D017320:HIV Protease Inhibitors / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies
chemical_list: D017320:HIV Protease Inhibitors
vernacular_title: Relazione di causalità delle reazioni avverse a farmaci: un'esperienza nell'utilizzo degli inhibitori della proteasi di HIV.