Carol B Peterson1, Scott G Engel2, Ross D Crosby2, Timothy Strauman3, Tracey L Smith4, Marjorie Klein5, Scott J Crow1,6, James E Mitchell2, Ann Erickson2, Li Cao2, Kayla Bjorlie2,7, Stephen A Wonderlich2. 1. Department of Psychiatry and Behavioral Sciences, University of Minnesota Medical School, Minneapolis, Minnesota, USA. 2. Sanford Research, Fargo, North Dakota, USA. 3. Department of Psychology and Neuroscience, Duke University, Durham, North Carolina, USA. 4. Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, Texas, USA. 5. Department of Psychiatry, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA. 6. The Emily Program, St. Paul, Minnesota, USA. 7. Department of Psychology, University of Kansas, Lawrence, KS, USA.
Abstract
OBJECTIVE: Innovative treatments and outcome measures are needed for binge-eating disorder (BED). This randomized controlled trial compared Integrative Cognitive-Affective Therapy (ICAT-BED), an individual psychotherapy targeting momentary behavioral and emotional precipitants of binge eating, with an established cognitive-behavioral guided self-help (CBTgsh) treatment using standard and ecological momentary assessment (EMA) outcome measures. METHOD:A total of 112 participants were randomized to 17 weeks of treatment (21 sessions for ICAT-BED and 10 sessions for CBTgsh). Binge-eating frequency was assessed with the Eating Disorder Examination (EDE) as well as EMA using cell phone-based real-time, naturalistic assessment at end of treatment (EOT) and 6-month follow-up. Hypothesized maintenance mechanisms were assessed using self-report questionnaires. RESULTS:Binge-eating frequency as measured by the EDE and real-time assessment showed significant reductions at EOT and follow-up, with no significant differences between treatments. Hypothesized maintenance mechanisms, including emotion regulation, cognitive self-discrepancy, self-directed style, as well as measures of associated eating disorder psychopathology, depression, anxiety, impulsivity, and negative affect, showed similar improvement at EOT and follow-up with no differences between treatments. Abstinence rates at EOT (ICAT-BED: 57.1%; CBTgsh: 42.9%) and 6-month follow-up (ICAT-BED: 46.4%; CBTgsh: 42.9%) were not significantly different. Treatment retention was significantly higher for ICAT-BED (87.5%) than CBTgsh (71.4%). DISCUSSION: These findings suggest that ICAT-BED and CBTgsh were associated with similar improvements in binge eating, psychopathology, and putative maintenance mechanisms as measured by traditional self-report and momentary, naturalistic assessments and that these changes were generally sustained at 6-month follow-up.
RCT Entities:
OBJECTIVE: Innovative treatments and outcome measures are needed for binge-eating disorder (BED). This randomized controlled trial compared Integrative Cognitive-Affective Therapy (ICAT-BED), an individual psychotherapy targeting momentary behavioral and emotional precipitants of binge eating, with an established cognitive-behavioral guided self-help (CBTgsh) treatment using standard and ecological momentary assessment (EMA) outcome measures. METHOD: A total of 112 participants were randomized to 17 weeks of treatment (21 sessions for ICAT-BED and 10 sessions for CBTgsh). Binge-eating frequency was assessed with the Eating Disorder Examination (EDE) as well as EMA using cell phone-based real-time, naturalistic assessment at end of treatment (EOT) and 6-month follow-up. Hypothesized maintenance mechanisms were assessed using self-report questionnaires. RESULTS: Binge-eating frequency as measured by the EDE and real-time assessment showed significant reductions at EOT and follow-up, with no significant differences between treatments. Hypothesized maintenance mechanisms, including emotion regulation, cognitive self-discrepancy, self-directed style, as well as measures of associated eating disorder psychopathology, depression, anxiety, impulsivity, and negative affect, showed similar improvement at EOT and follow-up with no differences between treatments. Abstinence rates at EOT (ICAT-BED: 57.1%; CBTgsh: 42.9%) and 6-month follow-up (ICAT-BED: 46.4%; CBTgsh: 42.9%) were not significantly different. Treatment retention was significantly higher for ICAT-BED (87.5%) than CBTgsh (71.4%). DISCUSSION: These findings suggest that ICAT-BED and CBTgsh were associated with similar improvements in binge eating, psychopathology, and putative maintenance mechanisms as measured by traditional self-report and momentary, naturalistic assessments and that these changes were generally sustained at 6-month follow-up.
Authors: Vivienne M Hazzard; Carol B Peterson; Ross D Crosby; Lauren M Schaefer; Kathryn E Smith; Scott G Engel; Scott J Crow; Stephen A Wonderlich Journal: Int J Eat Disord Date: 2020-10-29 Impact factor: 4.861
Authors: Gail A Williams-Kerver; Stephen A Wonderlich; Ross D Crosby; Li Cao; Kathryn E Smith; Scott G Engel; Scott J Crow; Carol B Peterson; James E Mitchell; Daniel Le Grange Journal: Clin Psychol Sci Date: 2020-06-23
Authors: Kathryn E Smith; Tyler B Mason; Lauren M Schaefer; Lisa M Anderson; Kobe Critchley; Ross D Crosby; Scott G Engel; Scott J Crow; Stephen A Wonderlich; Carol B Peterson Journal: Ann Behav Med Date: 2021-07-22
Authors: Lisa M Anderson; Kathryn M Smith; Lauren M Schaefer; Ross D Crosby; Li Cao; Scott G Engel; Scott J Crow; Stephen A Wonderlich; Carol B Peterson Journal: J Consult Clin Psychol Date: 2020-04-27
Authors: Kathryn E Smith; Tyler B Mason; Lauren M Schaefer; Lisa M Anderson; Vivienne M Hazzard; Ross D Crosby; Scott G Engel; Scott J Crow; Stephen A Wonderlich; Carol B Peterson Journal: Psychol Med Date: 2020-06-29 Impact factor: 7.723
Authors: Adrienne S Juarascio; Megan N Parker; Rowan Hunt; Helen Burton Murray; Emily K Presseller; Stephanie M Manasse Journal: Int J Eat Disord Date: 2021-04-14 Impact factor: 4.861
Authors: Gail A Williams-Kerver; Lauren M Schaefer; Vivienne M Hazzard; Li Cao; Scott G Engel; Carol B Peterson; Stephen A Wonderlich; Ross D Crosby Journal: Eat Behav Date: 2021-04-20
Authors: Joseph A Wonderlich; Ross D Crosby; Scott G Engel; Scott J Crow; Carol B Peterson; Daniel Le Grange; Stephen A Wonderlich; Sarah Fischer Journal: Int J Eat Disord Date: 2021-12-08 Impact factor: 4.861
Authors: Tyler B Mason; Kathryn E Smith; Gail A Williams-Kerver; Ross D Crosby; Scott G Engel; Scott J Crow; Stephen A Wonderlich; Carol B Peterson Journal: J Psychosom Res Date: 2021-01-29 Impact factor: 3.006
Authors: H Keipp Talbot; Emily T Martin; Manjusha Gaglani; Donald B Middleton; Shekhar Ghamande; Fernanda P Silveira; Kempapura Murthy; Richard K Zimmerman; Christopher H Trabue; Samantha M Olson; Joshua G Petrie; Jill M Ferdinands; Manish M Patel; Arnold S Monto Journal: Clin Infect Dis Date: 2021-12-16 Impact factor: 9.079