title: Occurrence of clinical depression during combination therapy with pegylated interferon alpha or natural human interferon beta plus ribavirin.
abstract: OBJECTIVE
  The onset of depression symptoms during pegylated interferon α plus ribavirin (PEG-IFN/RBV) combination therapy has led to treatment discontinuation in some cases. In the present study, we conducted a questionnaire survey during treatment to determine whether natural human interferon β plus ribavirin (IFNβ/RBV) therapy is associated with a lower incidence of depression symptom onset compared with PEG-IFN/RBV therapy.
  
  
  METHODS
  Seventy-seven patients with chronic hepatitis C received PEG-IFN/RBV (PR) or IFNβ/RBV (FR) therapy. A questionnaire survey was administered at the start of treatment, and at 4 and 12 weeks, using the Beck Depression Inventory II (BDI-II) and the Pittsburgh Sleep Quality Index (PSQI).
  
  
  RESULTS
  BDI-II scores in the PR group increased at 4 and 12 weeks, but remained unchanged in the FR group. At 12 weeks, the mean BDI-II score and incidence of abnormalities with a BDI-II score of ≥14 were significantly lower in the FR group than in the PR group. BDI-II scores during IFNβ/RBV therapy in 11 patients currently using antidepressants remained unchanged up to 12 weeks. None of these 11 patients required addition or dose increases of antidepressants, and there was no evidence of worsened depression symptoms. Nine PR patients had BDI-II scores of ≥14 and PSQI scores of ≥11 at 12 weeks.
  
  
  CONCLUSIONS
  IFNβ/RBV therapy was associated with a lower incidence of depression symptom onset during treatment. In patients already diagnosed with depression, there was no evidence that IFNβ/RBV therapy caused any worsening of symptoms, indicating that IFNβ/RBV therapy is safe for patients with depression.
authors.affiliation: The Center for Liver Disease, Shin-kokura Hospital, Kanada, Kokurakitaku, Kitakyushu, Fukuoka, Japan.
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Nomura
authors.forename: Yuugou
authors.initials: Y
authors.lastname: Miyagi
authors.forename: Hironori
authors.initials: H
authors.lastname: Tanimoto
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Yamashita
authors.forename: Seiji
authors.initials: S
authors.lastname: Oohashi
authors.forename: Saburo
authors.initials: S
authors.lastname: Nishiura