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Abstract
Binge Eating Disorder (BED), a chronic condition characterized by eating disorder psychopathology and physical and social disability, represents a significant public health problem. Guided Self Help (GSH) treatments for BED appear promising and may be more readily disseminable to mental health care providers, accessible to patients, and cost-effective than existing, efficacious BED specialty treatments which are limited in public health utility and impact given their time and expense demands. No existing BED GSH treatment has incorporated affect regulation models of binge eating, which appears warranted given research linking negative affect and binge eating. Integrative Response Therapy (IRT), a new group-based guided self-help treatment, based on the affect regulation model of binge eating, that has shown initial promise in a pilot sample of adults meeting DSM IV criteria for BED, is described. Fifty-four% and 67% of participants were abstinent at post-treatment and three month follow-up respectively. There was a significant reduction in the number of binge days over the previous 28 days from baseline to post-treatment [14.44 (±7.16) to 3.15 (±5.70); t=7.71, p<.001; d=2.2] and from baseline to follow-up [14.44 (±7.16) to 1.50 (±2.88); t=5.64, p<.001; d=1.7]. All subscales from both the Eating Disorder Examination - Questionnaire and Emotional Eating Scale were significantly lower at post-treatment compared to baseline. 100% of IRT participants would recommend the program to a friend or family member in need. IRT's longer-term efficacy and acceptability are presently being tested in a National Institute of Mental Health funded randomized controlled trial.
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Grilo CM, Crosby RD, Wilson GT, Masheb RM. 12-month follow-up of fluoxetine and cognitive behavioral therapy for binge eating disorder. J Consult Clin Psychol 2012; 80:1108-13. [PMID: 22985205 DOI: 10.1037/a0030061] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE The longer term efficacy of medication treatments for binge-eating disorder (BED) remains unknown. This study examined the longer term effects of fluoxetine and cognitive behavioral therapy (CBT) either with fluoxetine (CBT + fluoxetine) or with placebo (CBT + placebo) for BED through 12-month follow-up after completing treatments. METHOD 81 overweight patients with BED within a randomized double-blind placebo-controlled acute treatment trial allocated to fluoxetine-only, CBT + fluoxetine, and CBT + placebo were assessed before treatment, during treatment, posttreatment, and 6 and 12 months after completing treatments. Outcome variables comprised remission from binge eating (0 binge-eating episodes for 28 days) and continuous measures of binge-eating frequency, eating disorder psychopathology, depression, and weight. RESULTS Intent-to-treat remission rates (missing data coded as nonremission) differed significantly across treatments at posttreatment and at 6- and 12-month follow-ups. At 12-month follow-up remission rates were 3.7% for fluoxetine-only, 26.9% for CBT + fluoxetine, and 35.7% for CBT + placebo. Mixed-effects models of all available continuous data (without imputation) at posttreatment and at 6- and 12-month follow-ups (controlling for baseline scores) revealed the treatments differed on all clinical outcome variables, except for weight, across time. CBT + fluoxetine and CBT + placebo did not differ and both were significantly superior to fluoxetine-only on the majority of clinical outcomes. CONCLUSIONS This represents the first report from any randomized placebo-controlled trial for BED that has reported follow-up data after completing a course of medication-only treatment. CBT + placebo was superior to fluoxetine-only, and adding fluoxetine to CBT did not enhance findings compared to adding placebo to CBT. The findings document the longer term effectiveness of CBT, but not fluoxetine, through 12 months after treatment completion.
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53
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Abstract
Binge eating disorder (BED) is the most prevalent eating disorder in adults, and individuals with BED report greater general and specific psychopathology than non-eating disordered individuals. The current paper reviews research on psychological treatments for BED, including the rationale and empirical support for cognitive behavioral therapy (CBT), interpersonal psychotherapy (IPT), dialectical behavior therapy (DBT), behavioral weight loss (BWL), and other treatments warranting further study. Research supports the effectiveness of CBT and IPT for the treatment of BED, particularly for those with higher eating disorder and general psychopathology. Guided self-help CBT has shown efficacy for BED without additional pathology. DBT has shown some promise as a treatment for BED, but requires further study to determine its long-term efficacy. Predictors and moderators of treatment response, such as weight and shape concerns, are highlighted and a stepped-care model proposed. Future directions include expanding the adoption of efficacious treatments in clinical practice, testing adapted treatments in diverse samples (e.g., minorities and youth), improving treatment outcomes for nonresponders, and developing efficient and cost-effective stepped-care models.
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Affiliation(s)
- Juliette M. Iacovino
- Department of Psychology, Washington University in St. Louis, Campus Box 1125, One Brookings Drive, St. Louis, MO 63130, USA,
| | - Dana M. Gredysa
- Department of Psychology, Washington University in St. Louis, Campus Box 1125, One Brookings Drive, St. Louis, MO 63130, USA
| | - Myra Altman
- Department of Psychiatry, Washington University School of Medicine, Campus Box 8134, 660S Euclid, St. Louis, MO 63110, USA
| | - Denise E. Wilfley
- Department of Psychiatry, Washington University School of Medicine, Campus Box 8134, 660S Euclid, St. Louis, MO 63110, USA
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Franko DL, Thompson-Brenner H, Thompson DR, Boisseau CL, Davis A, Forbush KT, Roehrig JP, Bryson SW, Bulik CM, Crow SJ, Devlin MJ, Gorin AA, Grilo CM, Kristeller JL, Masheb RM, Mitchell JE, Peterson CB, Safer DL, Striegel RH, Wilfley DE, Wilson GT. Racial/ethnic differences in adults in randomized clinical trials of binge eating disorder. J Consult Clin Psychol 2012; 80:186-95. [PMID: 22201327 PMCID: PMC3668439 DOI: 10.1037/a0026700] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Recent studies suggest that binge eating disorder (BED) is as prevalent among African American and Hispanic Americans as among Caucasian Americans; however, data regarding the characteristics of treatment-seeking individuals from racial and ethnic minority groups are scarce. The purpose of this study was to investigate racial/ethnic differences in demographic characteristics and eating disorder symptoms in participants enrolled in treatment trials for BED. METHOD Data from 11 completed randomized, controlled trials were aggregated in a single database, the Clinical Trials of Binge Eating Disorder (CT-BED) database, which included 1,204 Caucasian, 120 African American, and 64 Hispanic participants assessed at baseline. Age, gender, race/ethnicity, education, body mass index (BMI), binge eating frequency, and Eating Disorder Examination (EDE) Restraint, Shape, Weight, and Eating Concern subscale scores were examined. RESULTS Mixed model analyses indicated that African American participants in BED treatment trials had higher mean BMI than Caucasian participants, and Hispanic participants had significantly greater EDE shape, weight, and eating concerns than Caucasian participants. No racial or ethnic group differences were found on the frequency of binge eating episodes. Observed racial/ethnic differences in BED symptoms were not substantially reduced after adjusting for BMI and education. Comparisons between the CT-BED database and epidemiological data suggest limitations to the generalizability of data from treatment-seeking samples to the BED community population, particularly regarding the population with lower levels of education. CONCLUSIONS Further research is needed to assess alternative demographic, psychological, and culturally specific variables to better understand the diversity of treatment-seeking individuals with BED.
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Affiliation(s)
- Debra L Franko
- Department of Counseling and Applied Educational Psychology, Northeastern University, Boston, MA 02115, USA.
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55
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Wilson GT, Zandberg LJ. Cognitive-behavioral guided self-help for eating disorders: effectiveness and scalability. Clin Psychol Rev 2012; 32:343-57. [PMID: 22504491 DOI: 10.1016/j.cpr.2012.03.001] [Citation(s) in RCA: 112] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Revised: 02/23/2012] [Accepted: 03/02/2012] [Indexed: 11/19/2022]
Abstract
Given the well-documented shortage of cognitive-behavioral therapy (CBT) for eating disorders, there is a compelling need for advances in dissemination. Guided self-help based on cognitive-behavioral principles (CBTgsh) provides a robust means of improving implementation and scalability of evidence-based treatment for eating disorders. It is a brief, cost-effective treatment that can be implemented by a wide range of mental health providers, including non-specialists, via face-to-face contact and internet-based technology. Controlled studies have shown that CBTgsh can be an effective treatment for binge eating disorder and bulimia nervosa, although it is contraindicated for anorexia nervosa. Several studies have shown that CBTgsh can be as effective as more complex specialty therapies and that it is not necessarily contraindicated for patients with comorbid conditions. Mental health providers with relatively minimal professional credentials have in some studies obtained results comparable to specialized clinicians. Establishing the nature of optimal "guidance" in CBTgsh and the level of expertise and training required for effective implementation is a research priority. Existing manuals used in CBTgsh are outdated and can be improved by incorporating the principles of enhanced transdiagnostic CBT. Obstacles to wider adoption of CBTgsh are identified.
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Affiliation(s)
- G Terence Wilson
- Graduate School of Applied and Professional Psychology, Rutgers, The State University of New Jersey, 152 Frelinghuysen Road, Piscataway, NJ 08854, USA.
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56
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Grilo CM, Masheb RM, Wilson GT, Gueorguieva R, White MA. Cognitive-behavioral therapy, behavioral weight loss, and sequential treatment for obese patients with binge-eating disorder: a randomized controlled trial. J Consult Clin Psychol 2012; 79:675-85. [PMID: 21859185 DOI: 10.1037/a0025049] [Citation(s) in RCA: 188] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Cognitive-behavioral therapy (CBT) is the best established treatment for binge-eating disorder (BED) but does not produce weight loss. The efficacy of behavioral weight loss (BWL) in obese patients with BED is uncertain. This study compared CBT, BWL, and a sequential approach in which CBT is delivered first, followed by BWL (CBT + BWL). METHOD 125 obese patients with BED were randomly assigned to 1 of the 3 manualized treatments delivered in groups. Independent assessments were performed posttreatment and at 6- and 12-month follow-ups. RESULTS At 12-month follow-up, intent-to-treat binge-eating remission rates were 51% (CBT), 36% (BWL), and 40% (CBT + BWL), and mean percent BMI losses were -0.9, -2.1, and 1.5, respectively. Mixed-models analyses revealed that CBT produced significantly greater reductions in binge eating than BWL through 12-month follow-up and that BWL produced significantly greater percent BMI loss during treatment. The overall significant percent BMI loss in CBT + BWL was attributable to the significant effects during the BWL component. Binge-eating remission at major assessment points was associated significantly with greater percent BMI loss cross-sectionally and prospectively (i.e., at subsequent follow-ups). CONCLUSIONS CBT was superior to BWL for producing reductions in binge eating through 12-month follow-up, while BWL produced statistically greater, albeit modest, weight losses during treatment. Results do not support the utility of the sequential approach of providing BWL following CBT. Remission from binge eating was associated with significantly greater percent BMI loss. Findings support BWL as an alternative treatment option to CBT for BED.
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Affiliation(s)
- Carlos M Grilo
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06519, USA.
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Berg KC, Peterson CB, Frazier P, Crow SJ. Convergence of scores on the interview and questionnaire versions of the Eating Disorder Examination: a meta-analytic review. Psychol Assess 2012; 23:714-24. [PMID: 21517194 DOI: 10.1037/a0023246] [Citation(s) in RCA: 112] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Significant discrepancies have been found between interview- and questionnaire-based assessments of psychopathology; however, these studies have typically compared instruments with unmatched item content. The Eating Disorder Examination (EDE), a structured interview, and the questionnaire version of the EDE (EDE-Q) are considered the preeminent assessments of eating disorder symptoms and provide a unique opportunity to examine the concordance of interview- and questionnaire-based instruments with matched item content. The convergence of EDE and EDE-Q scores has been examined previously; however, past studies have been limited by small sample sizes and have not compared the convergence of scores across diagnostic groups. A meta-analysis of 16 studies was conducted to compare the convergence of EDE and EDE-Q scores across studies and diagnostic groups. With regard to the EDE and EDE-Q subscale scores, the overall correlation coefficient effect sizes ranged from .68 to .76. The overall Cohen's d effect sizes ranged from .31 to .62, with participants consistently scoring higher on the questionnaire. For the items measuring behavior frequency, the overall correlation coefficient effect sizes ranged from .37 to .55 for binge eating and .90 to .92 for compensatory behaviors. The overall Cohen's d effect sizes ranged from -0.16 to -0.22, with participants reporting more binge eating on the interview than in the questionnaire in 70% of the studies. These results suggest the interview and questionnaire assess similar constructs but should not be used interchangeably. Additional research is needed to examine the inconsistencies between binge frequency scores on the 2 instruments.
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Affiliation(s)
- Kelly C Berg
- Department of Psychiatry, University of Minnesota, 606 –24th Avenue South, Suite 602, Minneapolis, MN 55454, USA.
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Zunker C, Crosby RD, Mitchell JE, Wonderlich SA, Peterson CB, Crow S. Weight suppression as a predictor variable in treatment trials of bulimia nervosa and binge eating disorder. Int J Eat Disord 2011; 44:727-30. [PMID: 20957701 PMCID: PMC5551980 DOI: 10.1002/eat.20859] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/27/2010] [Indexed: 11/11/2022]
Abstract
OBJECTIVE The purpose of this study was to examine weight suppression (WS) as a predictor of treatment outcome among individuals with binge eating disorder (BED) and bulimia nervosa (BN). METHOD Participants were diagnosed with BED or BN and took part in separate treatment studies. The current study examined WS as a predictor of treatment completion, weight change during treatment, and symptomatic abstinence, as well as percent reduction in binge eating and purging frequency. RESULTS WS did not significantly predict treatment completion or treatment outcome in either group. DISCUSSION Contrary to some previous findings, these results failed to demonstrate that WS was predictive of outcome at the end of treatment in BN. In addition, WS was not predictive of treatment outcome or dropout status in BED.
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Affiliation(s)
- Christie Zunker
- Neuropsychiatric Research Institute, Fargo, North Dakota, USA.
| | - Ross D. Crosby
- Neuropsychiatric Research Institute, Fargo, North Dakota, USA.,Department of Clinical Neuroscience, University of North Dakota School of Medicine and Health Sciences, Fargo, North Dakota, USA
| | - James E. Mitchell
- Neuropsychiatric Research Institute, Fargo, North Dakota, USA.,Department of Clinical Neuroscience, University of North Dakota School of Medicine and Health Sciences, Fargo, North Dakota, USA
| | - Stephen A. Wonderlich
- Neuropsychiatric Research Institute, Fargo, North Dakota, USA.,Department of Clinical Neuroscience, University of North Dakota School of Medicine and Health Sciences, Fargo, North Dakota, USA
| | - Carol B. Peterson
- Department of Psychiatry, University of Minnesota School of Medicine, Minneapolis, Minnesota, USA
| | - Scott Crow
- Department of Psychiatry, University of Minnesota School of Medicine, Minneapolis, Minnesota, USA
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Thompson P, Pryce H, Refaie E. Group or individual tinnitus therapy: What matters to participants? ACTA ACUST UNITED AC 2011. [DOI: 10.3109/1651386x.2011.604470] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Zunker C, Peterson CB, Cao L, Mitchell JE, Wonderlich SA, Crow S, Crosby RD. A receiver operator characteristics analysis of treatment outcome in binge eating disorder to identify patterns of rapid response. Behav Res Ther 2010; 48:1227-31. [PMID: 20869041 DOI: 10.1016/j.brat.2010.08.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2010] [Revised: 08/25/2010] [Accepted: 08/26/2010] [Indexed: 11/16/2022]
Abstract
The purpose of this study was to perform a receiver operator characteristics (ROC) analysis on a treatment sample from a randomized controlled treatment trial of participants with binge eating disorder (BED). An ROC analysis was completed with 179 adults in a 20-week treatment trial for BED to predict abstinence from binge eating at end of treatment. Percent reductions in binge eating episodes were examined following weeks 1 through 10 of treatment. The rate of percent decrease in binge eating episodes during treatment for BED was a significant predictor of clinical outcome at end of treatment. Participants who demonstrated a 15% reduction in binge eating episodes at week one were more likely to respond positively to treatment and achieve clinical remission. Findings from the current study suggest that a significant reduction in binge eating during the first week of treatment may be predictive of end of treatment remission in those with BED.
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Affiliation(s)
- Christie Zunker
- Neuropsychiatric Research Institute, S., Fargo, ND 58102, USA.
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61
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Lock J. Treatment of Adolescent Eating Disorders: Progress and Challenges. MINERVA PSICHIATRICA 2010; 51:207-216. [PMID: 21532979 PMCID: PMC3083856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
OBJECTIVE: Although eating disorders are common psychiatric disorders that usually onset during adolescence, few evidence-based treatments for this age group have been identified. A critical review of treatments used for Anorexia Nervosa (AN) and Bulimia Nervosa (BN) and related conditions (EDNOS) is provided that summarizes the rationale for the treatments, evidence of effectiveness available, and outcomes. METHOD: Critical review of published randomized clinical trials (RCTs). RESULTS: There are only seven published RCTs of psychotherapy for AN in adolescents with a total of 480 subjects. There are only two published RCTs for outpatient psychotherapy for adolescent BN with a total of 165 subjects. There are no published RCTs examining medications for adolescent AN or BN. For adolescent AN, Family-Based Treatment (FBT) is the treatment with the most evidence supporting its use. Three RCTs suggest that FBT is superior to individual therapy at the end of treatment; however, at follow-up differences between individual and family approaches are generally reduced. For adolescent BN, one study found no differences between Cognitive Behavioral Therapy and FBT at the end of treatment or follow-up, while the other found FBT superior to individual therapy. CONCLUSIONS: Although the evidence remains limited, FBT appears to be the first line treatment for adolescent AN. There is little evidence to support a specific treatment for adolescent BN. There is a need for additional studies of treatment of child and adolescent eating disorders. New treatments studies may build on current evidence as well as examine new approaches based on novel findings in the neurosciences about cognitive and emotional processes in eating disorders.
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Affiliation(s)
- James Lock
- Professor of Child Psychiatry and Pediatrics, Stanford University School of Medicine, 401 Quarry Road, Stanford, CA 94305, USA
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