A pilot trial of an online guided self-help cognitive behavioral therapy program for bulimia nervosa and binge eating disorder in Japanese patients

BioPsychoSocial Medicine · 7 authors, 6 centres

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TL;DR

This single-arm feasibility pilot trial evaluated an online guided self-help cognitive behavioral therapy (iGSH-CBT) program for 9 Japanese female outpatients with bulimia nervosa or binge eating disorder over 16 weeks.

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This open-label, single-arm feasibility study tested a 16-week internet-based guided self-help CBT program in 9 female outpatients with bulimia nervosa (n=5) or binge eating disorder (n=4). At the end of treatment, 25% of participants achieved symptom abstinence. Limitations include the very small sample size and lack of a control group, which preclude strong inferences about efficacy. The study concludes that the program is feasible and acceptable for this population, warranting further evaluation in a randomized controlled trial.

STUDY TYPE

RCT

SPECIALTY

psychiatry

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AI pipeline

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ORIGINAL PAPER

PMC10636965

A pilot trial of an online guided self-help cognitive behavioral therapy program for bulimia nervosa and binge eating disorder in Japanese patients

BioPsychoSocial Medicine

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ABSTRACT

Background The purpose of this study was to develop an internet-based Guided Self-Help CBT (iGSH-CBT) for Bulimia Nervosa (BN) / Binge Eating Disorder (BED) for Japanese patients and to test its feasibility. Methods A single-arm feasibility study. After baseline assessment, patients underwent a 16-week iGSH-CBT program, our Japanese adaption of the European-based Salut BN program. During the treatment period, weekly email support from trained counselors was provided. Evaluations were performed at baseline, after 8 weeks, at the end of the 16-week intervention, and at 2 months after treatment had ended. The primary outcome measure was the change in the weekly frequency of objective binging. Secondary outcomes were the change in the weekly frequency of objective purge episodes, responses on self-report questionnaires of the frequencies of binging and purging, psychopathological characteristics of eating disorders found on BITE, EDE-Q, EDI-2, HADS and EQ-5D, measurements of motivation, and completion of intervention (vs. dropout). Results Participants were 9 female outpatients with BN ( n = 5) or BED ( n = 4), of whom 8 (88.9%) attended the assessment at the end of the 16-week intervention. Mean age was 28 years (SD = 7.9). Percent change of the weekly frequency of objective binging was -4.40%, and at the end of the 16-week intervention 25% of the participants had achieved symptom abstinence. Conclusions No adverse events were observed during the treatment period and follow-up, and the implementation and operation of the program could be performed without any major problems, confirming the feasibility of iGSH-CBT for BN and BED for Japanese patients. Although no significant change was observed in the weekly frequency of objective binging, the abstinence rate from bulimic behaviors of those who completed the assessments was 25.0% at the end of treatment, and the drop-out rate was 11.1%. iGSH-CBT may be an acceptable and possibly even a preferred method of CBT delivery for Japanese patients with BN or BED, and our Japanese adaptation of Salut BN seems feasible. Trial registration UMIN, UMIN000031962. Registered 1 April 2018 - Retrospectively registered, https://center6.umin.ac.jp/cgi-open-bin/ctr/ctr_view.cgi?recptno=R000036334

CITATION EXPORT

Noriaki Ohsako, Hiroshi Kimura, Tasuku Hashimoto et al.. A pilot trial of an online guided self-help cognitive behavioral therapy program for bulimia nervosa and binge eating disorder in Japanese patients. BioPsychoSocial Medicine. (2023). https://doi.org/10.1186/s13030-023-00294-1

AUTHORS

7 · 6 CENTRES

Noriaki Ohsako, Hiroshi Kimura, Tasuku Hashimoto, Yutaka Hosoda, Yosuke Inaba, Masaomi Iyo, Michiko Nakazato

1https://ror.org/00epner96grid.411129.e0000 0000 8836 0780Department of Psychiatry, Bellvitge University Hospital-IDIBELL, c/ Feixa Llarga s/n, L’Hospitalet de Llobregat, Barcelona 08907 Spain
2https://ror.org/01hjzeq58grid.136304.30000 0004 0370 1101Department of Psychiatry, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba-City, Chiba 260-8670 Japan
3https://ror.org/053d3tv41grid.411731.10000 0004 0531 3030Department of Psychiatry, International University of Health and Welfare (IUHW), 852 Hatakeda, Narita-City, Chiba 286-8520 Japan
4Department of Psychiatry, Gakuji-Kai Kimura Hospital, 6-19 Higashihon-cho, Chuo-ku, Chiba-City, Chiba 260-0004 Japan
5https://ror.org/011nerd04grid.505882.20000 0004 1774 5615Department of Psychiatry, Kisarazu Hospital, 2-3-1 Iwane, Kisarazu-City, Chiba 292-0061 Japan
6https://ror.org/01hjzeq58grid.136304.30000 0004 0370 1101Clinical Research Center, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba-City, Chiba 260-8670 Japan