Placebo response in binge eating disorder

M. Joy Jacobs-Pilipski, Denise E. Wilfley, Scott J. Crow, B. Timothy Walsh, Lisa R.R. Lilenfeld, Delia Smith West, Robert I. Berkowitz, James I. Hudson, Christopher G. Fairburn

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

Objective: Placebo response in studies of binge eating disorder (BED) has raised concern about its diagnostic stability. The aims of this study were (1) to compare placebo responders (PRs) with nonresponders (NRs); (2) to investigate the course of BED following placebo response; and (3) to examine attributions regarding placebo response. Method: The baseline placebo run-in phase (BL) was part of a RCT investigating sibutramine hydrochloride for BED; it included 451 participants, ages 19-63, diagnosed with BED. Follow-up (FU) included 33 PRs. Results: In this study, 32.6% of participants responded to placebo (PRs = 147; NRs = 304). PRs exhibited significantly less symptom severity. At FU (n = 33), many PRs reported continued symptoms. Conclusion: PRs exhibited significantly less severe pathology than NRs. Placebo response in BED may transitory or incomplete. The results of this study suggest variable stability in the BED diagnosis.

Original languageEnglish (US)
Pages (from-to)204-211
Number of pages8
JournalInternational Journal of Eating Disorders
Volume40
Issue number3
DOIs
StatePublished - Apr 2007

Keywords

  • Binge eating disorder
  • Eating disorders
  • Placebo response
  • Psychopathology

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