Do atypical features affect outcome in depressed outpatients treated with citalopram?

TitleDo atypical features affect outcome in depressed outpatients treated with citalopram?
Publication TypeJournal Article
Year of Publication2010
AuthorsStewart, JW, McGrath PJ, Fava M, Wisniewski SR, Zisook S, Cook I, Nierenberg AA, Trivedi MH, Balasubramani GK, Warden D, Lesser I, John Rush A
JournalThe international journal of neuropsychopharmacology / official scientific journal of the Collegium Internationale Neuropsychopharmacologicum (CINP)
Volume13
Issue1
Pagination15-30
Date Published2010 Feb
ISSN1469-5111
KeywordsAdolescent, Adult, Age of Onset, Aged, Anxiety, Citalopram, Depressive Disorder, Major, Female, Humans, Male, Middle Aged, Psychiatric Status Rating Scales, Serotonin Uptake Inhibitors, Severity of Illness Index, Sex Factors, Socioeconomic Factors, Time Factors, Treatment Outcome
Abstract

Depressed patients with atypical features have an earlier onset of depression, a more chronic course of illness, several distinctive biological and familial features, and a different treatment response than those without atypical features. The efficacy and tolerability of selective serotonin reuptake inhibitors (SSRIs) have not been fully evaluated in depression with atypical features. This report evaluates data from the Sequenced Treatment Alternatives to Relieve Depression (STAR*D) study to determine whether depressed outpatients with and without atypical features respond differently to the SSRI citalopram. Treatment-seeking participants with non-psychotic major depressive disorder were recruited from primary- and psychiatric-care settings. The presence/absence of atypical features was approximated using baseline ratings on the 30-item Inventory of Depressive Symptomatology - Clinician-rated. Following baseline assessments, participants received citalopram up to 60 mg/d for up to 14 wk. Baseline sociodemographic and clinical characteristics, and treatment outcomes, were compared between participants with and without atypical features. Of the 2876 evaluable STAR*D participants, 541 (19%) had atypical features. Participants with atypical features were significantly more likely to be female, younger, unemployed, have greater physical impairment, a younger age of depression onset, a longer index episode, greater depressive severity, and more concurrent anxiety diagnoses. Those with atypical features had significantly lower remission rates, although this difference was no longer present after adjustment for baseline differences. Depressed patients with atypical features are less likely to remit with citalopram than those without atypical features. This finding is probably due to differences in baseline characteristics other than atypical symptom features.

DOI10.1111/j.1530-0277.2011.01591.x
Alternate JournalInt. J. Neuropsychopharmacol.