Utilization of empirically supported psychotherapy treatments for individuals with eating disorders: A survey of psychologists

Home treatment as an add-on to family-based treatment for adolescents with anorexia nervosa compared with standard family-based treatment and home-based stress reduction training: study protocol for a randomized clinical trial

BACKGROUND

Family-based treatment (FBT) is currently the most effective evidence-based treatment approach for adolescents with anorexia nervosa (AN). Home treatment (HT) as an add-on to FBT (FBT-HT) has been shown to be acceptable, feasible and effective. The described three-arm randomized clinical trial (RCT) is intended to investigate whether FBT-HT demonstrates higher efficacy compared to standard outpatient FBT with supplemental mindfulness-based stress reduction training (FBT-MBSR).

METHODS

This RCT compares FBT-HT to standard outpatient FBT and FBT-MBSR as a credible home-based control group in terms of efficacy and delivery. Adolescents with AN or atypical AN disorder (n = 90) and their parent(s)/caregiver(s) are to be randomly assigned to either FBT, FBT-HT or FBT-MBSR groups. Eating disorder diagnosis and symptomatology are to be assessed by eating disorder professionals using standardized questionnaires and diagnostic instruments (Eating Disorder Examination, Eating Disorder Inventory, Body Mass Index). In addition, parents and caregivers independently provide information on eating behavior, intrafamily communication, stress experience and weight. The therapeutic process of the three treatments is to be measured and assessed among both participants and care providers. The feasibility, acceptability and appropriateness can thus also be evaluated.

DISCUSSION

We hypothesize that FBT-HT will be an acceptable, appropriate and feasible intervention and, importantly, will outperform both established FBT and FBT-MBSR in improving adolescent weight and negative eating habits. Secondary outcome measures include the reduction in the stress experienced by caregivers, as well as the regulation of perceived expressed emotions within the family, while the intrafamily relationships are hypothesized to mediate/moderate the effectiveness of FBT. The proposed study has the potential to enhance the scientific and clinical understanding of the efficacy of FBT for AN, including whether the addition of HT to FBT versus another home-based adjunct intervention improves treatment outcomes. Furthermore, the study aligns with public health priorities to optimize the outcomes of evidence-based treatments and integrate the community setting. Trial registration This study is registered at ClinicalTrials.gov (NCT05418075).

Implementation and outcomes of home-based treatments for adolescents with anorexia nervosa: Study protocol for a pilot effectiveness-implementation trial

OBJECTIVE

Although family-based treatment (FBT) is considered a first-line treatment for adolescent anorexia nervosa (AN), it is underutilized in community settings and is unavailable to many families for a multitude of practical reasons (e.g., costs of treatment, transportation constraints). Adapting FBT interventions for delivery in home-based and community-based settings may reduce pragmatic barriers to treatment uptake and engagement.

METHODS

This pilot effectiveness-implementation trial will assess outcomes, implementation, and mechanisms of FBT adapted for the home setting (FBT-HB), delivered in the context of community-based behavioral health agencies. Adolescents with AN-spectrum disorders (n = 50) and their caregivers will be randomly assigned to either FBT-HB or home-based treatment as usual (TAU; integrated family therapy approach). Caregivers and adolescents will provide data on weight, eating, and putative treatment mechanisms, including caregiver self-efficacy and adolescent eating-related and weight-related distress. Implementation constructs of feasibility, acceptability, and appropriateness will be measured among providers and participating families.

HYPOTHESES

We expect that FBT-HB will be feasible, acceptable, and appropriate, and will outperform TAU in terms of improvements in adolescent weight and eating-related psychopathology. We further expect that caregiver self-efficacy and adolescent eating-related and weight-related distress, but not general distress, will show greater improvements in FBT-HB relative to TAU and will be associated with better adolescent weight and eating outcomes in FBT-HB.

POTENTIAL IMPLICATIONS

The proposed study has clear potential to advance scientific and clinical understanding of the real-world effectiveness of FBT for AN, including whether adapting it for the home setting improves its accessibility and effects on treatment outcome.

Retention, engagement, and binge-eating outcomes: Evaluating feasibility of the Binge-Eating Genetics Initiative study

OBJECTIVE

Using preliminary data from the Binge-Eating Genetics Initiative (BEGIN), we evaluated the feasibility of delivering an eating disorder digital app, Recovery Record, through smartphone and wearable technology for individuals with binge-type eating disorders.

METHODS

Participants (n = 170; 96% female) between 18 and 45 years old with lived experience of binge-eating disorder or bulimia nervosa and current binge-eating episodes were recruited through the Recovery Record app. They were randomized into a Watch (first-generation Apple Watch + iPhone) or iPhone group; they engaged with the app over 30 days and completed baseline and endpoint surveys. Retention, engagement, and associations between severity of illness and engagement were evaluated.

RESULTS

Significantly more participants in the Watch group completed the study (p = .045); this group had greater engagement than the iPhone group (p's < .05; pseudo-R2 McFadden effect size = .01-.34). Overall, binge-eating episodes, reported for the previous 28 days, were significantly reduced from baseline (mean = 12.3) to endpoint (mean = 6.4): most participants in the Watch (60%) and iPhone (66%) groups reported reduced binge-eating episodes from baseline to endpoint. There were no significant group differences across measures of binge eating. In the Watch group, participants with fewer episodes of binge eating at baseline were more engaged (p's < .05; pseudo-R2 McFadden  = .01-.02). Engagement did not significantly predict binge eating at endpoint nor change in binge-eating episodes from baseline to endpoint for both the Watch and iPhone groups.

DISCUSSION

Using wearable technology alongside iPhones to deliver an eating disorder app may improve study completion and app engagement compared with using iPhones alone.

On what do therapists agree? Assessing therapist evaluations of emotion regulation strategy effectiveness

OBJECTIVE

To develop more unified, process-based, and disseminable psychotherapy treatments, it is important to determine whether there is consensus among therapists regarding intervention strategies.

DESIGN

Because emotion regulation is a cornerstone of modern treatments and a thriving area of clinical research, we assessed therapists' ratings of the effectiveness of commonly studied emotion regulation strategies.

METHODS

Therapists (n = 582) read eleven vignettes describing stressful scenarios and rated the effectiveness of ten emotion regulation strategies in each scenario.

RESULTS

Across therapists, we found general consensus regarding the most (i.e., problem-solving) and least (i.e., concealing emotions) effective strategies. Cognitive/behavioural/third-wave therapists rated acceptance and distraction as more effective, and emotional expression and gathering information as less effective, than other therapists, Fs> 4.20, ps < .05, whereas hours of clinical experience were generally unrelated to strategy effectiveness ratings.

CONCLUSIONS

We discuss what these points of agreement and relative disagreement among therapists reveal about a more unified, process-based treatment approach and how these results can guide emotion regulation research.

PRACTITIONER POINTS

There is general consensus among practising therapists that problem-solving is the most effective emotion regulation strategy and expressive suppression is the least effective. However, CBT-oriented therapists rated acceptance and distraction as more effective than non-CBT-oriented therapists. Non-CBT-oriented therapists rated emotional expression and gathering information as more effective than CBT-oriented therapists. Years of experience were unrelated to ratings of emotion regulation strategy effectiveness.

Cognitive Behavioral Therapy for the Eating Disorders

Research findings strongly suggest that cognitive behavioral therapy for the eating disorders (CBT-ED) is more effective than other treatments for bulimia nervosa (BN) and for binge eating disorder (BED), although interpersonal psychotherapy appears to be equally effective for BED. Evidence for the effectiveness of CBT-ED for the persistent (adult) form of anorexia nervosa (AN) is insufficient at present and is essentially absent for AN in adolescents except for some evidence from uncontrolled trials. This article begins with an overview of the early studies in the development of CBT-ED that showed a similar effectiveness of other symptom-focused psychotherapies-a finding that was neglected at the time. Later developments are then considered, including comparisons of CBT-ED with other psychotherapies, efforts to develop Internet-based training and treatment, and electronic applications for treatment. Finally, implications of the findings for future short- and long-term research and for clinical practice are considered.

Reasons for non-response and recommendations for optimal outpatient treatment of bulimia nervosa: A survey on German expert therapists' views

Objectives: Remission rates after treatment for bulimia nervosa can be considered insufficient. The study aimed to explore the perspective of expert psychotherapists on possible reasons for non-response and recommendations for an optimized treatment. Methods: Experts filled in a questionnaire that comprised questions about possible reasons for low remission rates as well as ratings of interventions suggested for different treatment phases and subgroups of patients. Results: 56 experienced therapists could be included in the survey. Ambivalence of patients, insufficient training of therapists and heterogeneity of the patient group were most often rated as possible reasons for insufficient outcomes. For optimized treatment, therapists recommended a combination of cognitive-behavioral and psychodynamic techniques, depending on treatment phase and patient characteristics. Conclusions: Further research should examine, if a more specific training of therapists, a more integrative approach and flexible adaptations of interventions to patients' characteristics are effective strategies to improve outcome.

Patterns of treatment for psychiatric disorders among children and adolescents in Mississippi Medicaid

The nature of services for psychiatric disorders in public health systems has been understudied, particularly with regard to frequency, duration, and costs. The current study examines patterns of service reception and costs among Medicaid-covered youth newly diagnosed with anxiety, depression, or behavioral disturbance in a large data set of provider billing claims submitted between 2015-2016. Eligibility criteria included: 1) identification of an initial diagnosis of a single anxiety, unipolar mood, or specific behavioral disorder; 2) continuous Medicaid eligibility over the duration of the time period studied; and 3) under 18 years of age on the date of initial psychiatric diagnosis. The final cohort included 7,627 cases with a mean age of 10.65 (±4.36), of which 58.04% were male, 57.09% were Black, 38.97% were White, and 3.95% were of other ethnicities. Data indicated that 65.94% of the cohort received at least some follow-up services within a median 18 days of diagnosis. Of those, 54.27% received a combination of medical and psychosocial services, 32.01% received medical services only, and 13.72% received psychosocial services only. Overall median costs for direct treatment were $576.69, with wide discrepancies between the lowest (anxiety = $308.41) and highest (behavioral disturbance = $653.59) diagnostic categories. Across all categories the frequency and duration of psychosocial services were much lower than would be expected in comparison to data from a well-known effectiveness trial. Overall, follow-up to psychiatric diagnosis could be characterized as highly variable, underutilized, and emphasizing biomedical treatment. Understanding more about these patterns may facilitate systematic improvements and greater cost efficiency in the future.

Evaluating the effectiveness of an evidence-based online training program for health professionals in eating disorders

BACKGROUND

Early detection and treatment are essential to ensuring the best possible health outcomes for people with eating disorders (EDs). However, low diagnostic accuracy and a lack of specific ED training are common workforce challenges in Australia and internationally. Online learning provides a potential solution in facilitating the access to evidence-based training programs. The InsideOut Institute has developed the first online clinical training program in EDs to assist with educating health professionals in the identification, assessment, and management of EDs. The aim of the study is to evaluate the effectiveness of the online training program, The Essentials, in mitigating barriers to health professionals treating patients with EDs.

METHODS

Pre and post training questionnaires assessed participants' attitudes, knowledge, and skills in relation to treating people with EDs. Demographic and work-related information (gender, discipline, work setting, practice length and remoteness) and participants' ratings of the online learning experience and satisfaction on completion were collected. The Wilcoxon signed rank test was applied to test for changes in learning outcomes before and after completion of the program. A multivariate linear regression model was estimated for each of the learning outcomes with personal and work-related characteristics as covariates.

RESULTS

Among 1813 health professionals who registered for The Essentials program between 1 October 2013 and 31 July 2018, 1160 completed at least 80% of the five learning modules. There were significant improvements in confidence, knowledge, skills to treat EDs and a reduction in stigmatised beliefs among the 480 participants who completed both pre and post assessments. Results from the regression models suggest that psychologists, dieticians, and those working in rural areas were more willing to treat EDs after completing the program. Additionally, those working in hospitals and regional or rural areas experienced the largest improvement in confidence for treating patients with EDs.

CONCLUSIONS

The Essentials program represents a new and effective way of meeting the educational needs of partaking health professionals working with ED patients. Greater investment in the development and testing of evidence-based online training programs for EDs may help to address some of the considerable workforce development challenges in EDs.

A Tertiary-Care/Primary-Care Partnership Aimed at Improving Care for People with Eating Disorders

We describe the implementation and impact of a province-wide program of knowledge exchange (KE), aimed at developing capacity for the treatment of people with eating disorders (EDs). The program is designed to equip clinicians working in nonspecialized health-care installations with skills to evaluate and treat people with EDs. Trainings were conducted at 21 institutions. The majority of clinicians reported satisfaction with the KE program and indicated that the trainings enhanced their confidence and ability to treat patients with EDs. A subset of clinicians received case supervision with a specialist ED therapist and followed patients with EDs (n = 119). Treated patients showed significant improvements on eating and depressive symptoms, and reported satisfaction with the treatments they received.

To deliver or not to deliver cognitive behavioral therapy for eating disorders: Replication and extension of our understanding of why therapists fail to do what they should do

OBJECTIVE

This study investigated the extent to which therapists fail to apply empirically supported treatments in a sample of clinicians in The Netherlands, delivering cognitive behavioral therapy for eating disorders (CBT-ED). It aimed to replicate previous findings, and to extend them by examining other potential intra-individual factors associated with the level of (non-)use of core CBT-ED techniques.

METHOD

Participants were 139 clinicians (127 women; mean age 41.4 years, range = 24-64) who completed an online survey about the level of use of specific techniques, their beliefs (e.g., about the importance of the alliance and use of pretreatment motivational techniques), anxiety (Intolerance of Uncertainty Scale), and personality (Ten Item Personality Inventory).

RESULTS

Despite some differences with Waller's (2012) findings, the present results continue to indicate that therapists are not reliably delivering the CBT-ED techniques that would be expected to provide the best treatment to their patients. This 'non-delivery' appears to be related to clinician anxiety, temporal factors, and clinicians' beliefs about the power of the therapeutic alliance in driving therapy outcomes.

DISCUSSION

Improving treatment delivery will involve working with clinicians' levels of anxiety, clarifying the lack of benefit of pre-therapy motivational enhancement work, and reminding clinicians that the therapeutic alliance is enhanced by behavioral change in CBT-ED, rather than the other way around.

Therapists' self-reported drift from dialectical behavior therapy techniques for eating disorders

OBJECTIVE

Research has shown that clinicians underuse or omit techniques that constitute an essential part of evidence-based therapies. However, it is not known whether this is the case in DBT for eating disorders. The aims of this study were; 1) exploring the extent to which DBT techniques were used by self-identified DBT clinicians treating eating disorders; 2) determining whether therapists fell into distinct groups, based on their usage of DBT techniques; and 3) examining whether clinician characteristics were related to the use of such techniques.

METHOD

Seventy-three clinicians offering DBT for eating disorders completed an online survey about their use of specific DBT techniques. They also completed measures of personality and intolerance of uncertainty.

RESULTS

In relation to the first aim, the pattern of use of DBT techniques showed a bimodal distribution - most were used either a lot or a little. Considering the second aim, clinicians fell into two groups according to the techniques that they delivered - one characterized by a higher use of DBT techniques and the other by a higher use of techniques that were specific to the treatment of eating disorders, rather than DBT methods. Finally, more experienced clinicians were more likely to be in the 'DBT technique-focused' group.

DISCUSSION

DBT clinicians are encouraged to implement both sets of techniques (DBT techniques and standard techniques for the treatment of eating disorders) in an integrated way. Training, supervision and the use of manuals are recommended to decrease therapist drift in DBT.

Does patient reluctance towards exposure and psychologists' attitudes about evidence based practice influence treatment recommendations for panic disorder? An experimental investigation

This study examined the effects of patient reluctance towards exposure on practitioners' subsequent treatment recommendations. Participants (N=236) were doctoral level psychologists who received a vignette of a patient with panic disorder, which either did (experimental group) or did not (control group) mention patient reluctance towards exposure. Evidence Based Practice (EBP) attitudes were also assessed and taken into account. A significant main effect of reluctance, averaged across all levels of EBP attitudes, and theoretical orientations was obtained (OR=2.85, 95% CI=[1.51, 5.39], p=0.001, RR=1.46), with controls 1.46 times more likely to recommend exposure. A significant main effect of EBP attitudes was also obtained (p<0.001). The odds of recommending exposure increased by 11% with each increase of positive EBP attitudes, across both levels of patient reluctance and theoretical orientation.

CBT4BN: A Randomized Controlled Trial of Online Chat and Face-to-Face Group Therapy for Bulimia Nervosa

OBJECTIVE

Although cognitive-behavioral therapy (CBT) represents the first-line evidence-based psychotherapy for bulimia nervosa (BN), most individuals seeking treatment do not have access to this specialized intervention. We compared an Internet-based manualized version of CBT group therapy for BN conducted via a therapeutic chat group (CBT4BN) to the same treatment conducted via a traditional face-to-face group therapy (CBTF2F).

METHOD

In a two-site, randomized, controlled noninferiority trial, we tested the hypothesis that CBT4BN would not be inferior to CBTF2F. A total of 179 adult patients with BN (2.6% males) received up to 16 sessions of group CBT over 20 weeks in either CBT4BN or CBTF2F, and outcomes were compared at the end of treatment and at the 12-month follow-up.

RESULTS

At the end of treatment, CBT4BN was inferior to CBTF2F in producing abstinence from binge eating and purging. However, by the 12-month follow-up, CBT4BN was mostly not inferior to CBTF2F. Participants in the CBT4BN condition, but not CBTF2F, continued to reduce their binge-eating and purging frequency from the end of treatment to the 12-month follow-up.

CONCLUSIONS

CBT delivered online in a group chat format appears to be an efficacious treatment for BN, although the trajectory of recovery may be slower than face-to-face group therapy. Online chat groups may increase accessibility of treatment and represent a cost-effective approach to service delivery. However, barriers in service delivery such as state-specific license and ethical guidelines for online therapists need to be addressed.

The three-legged stool of evidence-based practice in eating disorder treatment: research, clinical, and patient perspectives

BACKGROUND

Evidence-based practice in eating disorders incorporates three essential components: research evidence, clinical expertise, and patient values, preferences, and characteristics. Conceptualized as a 'three-legged stool' by Sackett et al. in 1996 (BMJ), all of these components of evidence-based practice are considered essential for providing optimal care in the treatment of eating disorders. However, the extent to which these individual aspects of evidence-based practice are valued among clinicians and researchers is variable, with each of these stool 'legs' being neglected at times. As a result, empirical support and patient preferences for treatment are not consistently considered in the selection and implementation of eating disorder treatment. In addition, clinicians may not have access to training to provide treatments supported by research and preferred by patients. Despite these challenges, integrating these three components of evidence-based practice is critical for the effective treatment of eating disorders.

DISCUSSION

Current research supports the use of several types of psychotherapies, including cognitive-behavioral, interpersonal, and family-based therapies, as well as certain types of medications for the treatment of eating disorders. However, limitations in current research, including sample heterogeneity, inconsistent efficacy, a paucity of data, the need for tailored approaches, and the use of staging models highlight the need for clinical expertise. Although preliminary data also support the importance of patient preferences, values, and perspectives for optimizing treatment, enhancing treatment outcome, and minimizing attrition among patients with eating disorders, the extent to which patient preference is consistently predictive of outcome is less clear and requires further investigation. All three components of evidence-based practice are integral for the optimal treatment of eating disorders. Integrating clinical expertise and patient perspective may also facilitate the dissemination of empirically-supported and emerging treatments as well as prevention programs. Further research is imperative to identify ways in which this three-legged approach to eating disorder treatment could be most effectively implemented.

Can an internet-based program for the prevention and early intervention in eating disorders facilitate access to conventional professional healthcare?

BACKGROUND

The majorities of individual suffering from eating disorders do not seek or receive adequate professional treatment. Internet-based approaches promise to facilitate access to conventional healthcare by providing an easy-access, low-threshold contact.

AIM

The current study investigated whether an Internet-based program for the prevention and early intervention for eating disorders (ProYouth) may contribute to the actual and intended uptake of professional care. Characteristics of individuals who seek help are explored as well as barriers to help-seeking.

METHOD

The sample included 453 ProYouth participants who were surveyed three months after registration. Actual help-seeking behavior, intended help-seeking, potential help-seeking, and barriers to help-seeking were assessed.

RESULTS

Within three months of participation, 43 individuals (9.5%) took up treatment, 32 (7.8%) intended to start treatment, and 163 (43.1%) of the remaining reported that they would seek professional help in case of need (potential help-seeking). Approximately 50% of (potential) help-seekers stated that participation in ProYouth has changed their attitude towards help-seeking. Mental health literacy and shame/stigma were the most frequently mentioned barriers.

CONCLUSIONS

This is the first study indicating that an online program for prevention and early intervention may serve as facilitator in accessing conventional healthcare.

Disseminating evidence-based psychological treatments for eating disorders

The research-practice gap is of concern in the treatment of eating disorders. Despite the existence of empirically supported treatments, few receive them. The barriers to wider dissemination and implementation of evidence-based treatment include clinician attitudes towards such treatments and the lack of sufficient numbers of suitably trained therapists to provide treatment. In this review we discuss these barriers in the context of the wider issue of the dissemination and implementation of psychological treatments and review the research with regard to the treatment of eating disorders. Particular emphasis is placed on examining recent efforts to expand the availability and reach of treatments by making treatment delivery and training more scalable. We highlight promising developments and areas where further research is needed.

Effectiveness of cognitive behavioral therapy in public mental health: comparison to treatment as usual for treatment-resistant depression

State mental health systems have been leaders in the implementation of evidence-based approaches to care for individuals with severe mental illness. Numerous case studies of the wide-scale implementation of research-supported models such as integrated dual diagnosis treatment and assertive community treatment are documented. However, relatively few dissemination efforts have focused on cognitive behavioral therapy (CBT) for individuals with major depression despite evidence indicating its efficacy with this population. A multi-site effectiveness trial of CBT was conducted within the Texas public mental health system. Eighty-three adults with major depression received CBT from community clinicians trained through a workshop and regular consultation with a master clinician. Outcomes were compared to a matched sample of individuals receiving pharmacotherapy. Outcome measures used included the quick inventory of depressive symptomatology and beck depression inventory. Individuals receiving CBT showed greater improvements in depression symptoms than those in the comparison group. Greater pre-treatment symptom severity predicted better treatment response, while the presence of comorbid personality disorders was associated with poorer outcomes.

Treatment of binge eating disorder in racially and ethnically diverse obese patients in primary care: randomized placebo-controlled clinical trial of self-help and medication

The objective was to determine whether treatments with demonstrated efficacy for binge eating disorder (BED) in specialist treatment centers can be delivered effectively in primary care settings to racially/ethnically diverse obese patients with BED. This study compared the effectiveness of self-help cognitive-behavioral therapy (shCBT) and an anti-obesity medication (sibutramine), alone and in combination, and it is only the second placebo-controlled trial of any medication for BED to evaluate longer-term effects after treatment discontinuation. 104 obese patients with BED (73% female, 55% non-white) were randomly assigned to one of four 16-week treatments (balanced 2-by-2 factorial design): sibutramine (N = 26), placebo (N = 27), shCBT + sibutramine (N = 26), or shCBT + placebo (N = 25). Medications were administered in double-blind fashion. Independent assessments were performed monthly throughout treatment, post-treatment, and at 6- and 12-month follow-ups (16 months after randomization). Mixed-models analyses revealed significant time and medication-by-time interaction effects for percent weight loss, with sibutramine but not placebo associated with significant change over time. Percent weight loss differed significantly between sibutramine and placebo by the third month of treatment and at post-treatment. After the medication was discontinued at post-treatment, weight re-gain occurred in sibutramine groups and percent weight loss no longer differed among the four treatments at 6- and 12-month follow-ups. For binge-eating, mixed-models revealed significant time and shCBT-by-time interaction effects: shCBT had significantly lower binge-eating frequency at 6-month follow-up but the treatments did not differ significantly at any other time point. Demographic factors did not significantly predict or moderate clinical outcomes. Our findings suggest that pure self-help CBT and sibutramine did not show long-term effectiveness relative to placebo for treating BED in racially/ethnically diverse obese patients in primary care. Overall, the treatments differed little with respect to binge-eating and associated outcomes. Sibutramine was associated with significantly greater acute weight loss than placebo and the observed weight-regain following discontinuation of medication suggests that anti-obesity medications need to be continued for weight loss maintenance. Demographic factors did not predict/moderate clinical outcomes in this diverse patient group.

Mapping the evidence for the prevention and treatment of eating disorders in young people

ABSTRACT

Eating disorders often develop during adolescence and young adulthood, and are associated with significant psychological and physical burden. Identifying evidence-based interventions is critical and there is need to take stock of the extant literature, to inform clinical practice regarding well-researched interventions and to direct future research agendas by identifying gaps in the evidence base.

AIM

To investigate and quantify the nature and distribution of existing high-quality research on the prevention and treatment of eating disorders in young people using evidence mapping methodology.

METHOD

A systematic search for prevention and treatment intervention studies in adolescents and young adults (12-25 years) was conducted using EMBASE, PSYCINFO and MEDLINE. Studies were screened and mapped according to disorder, intervention modality, stage of eating disorder and study design. Included studies were restricted to controlled trials and systematic reviews published since 1980.

RESULTS

The eating disorders evidence map included 197 trials and 22 systematic reviews. Prevention research was dominated by trials of psychoeducation (PE). Bulimia nervosa (BN) received the most attention in the treatment literature, with cognitive behavioural therapy (CBT) and antidepressants the most common interventions. For anorexia nervosa (AN), family based therapy (FBT) was the most studied. Lacking were trials exploring treatments for binge eating disorder (BED) and eating disorder not otherwise specified (EDNOS). Relapse prevention strategies were notably absent across the eating disorders.

CONCLUSIONS

Despite substantial literature devoted to the prevention and treatment of eating disorders in young people, the evidence base is not well established and significant gaps remain. For those identified as being at-risk, there is need for prevention research exploring strategies other than passive PE. Treatment interventions targeting BED and EDNOS are required, as are systematic reviews synthesising BN treatment trials (e.g., CBT, antidepressants). FBTs for AN require investigation against other validated psychological interventions, and the development of relapse prevention strategies is urgently required. By systematically identifying existing interventions for young people with eating disorders and exposing gaps in the current literature, the evidence map can inform researchers, funding bodies and policy makers as to the opportunities for future research.

A randomized controlled comparison of integrative cognitive-affective therapy (ICAT) and enhanced cognitive-behavioral therapy (CBT-E) for bulimia nervosa

BACKGROUND

The purpose of this investigation was to compare a new psychotherapy for bulimia nervosa (BN), integrative cognitive-affective therapy (ICAT), with an established treatment, 'enhanced' cognitive-behavioral therapy (CBT-E).

METHOD

Eighty adults with symptoms of BN were randomized to ICAT or CBT-E for 21 sessions over 19 weeks. Bulimic symptoms, measured by the Eating Disorder Examination (EDE), were assessed at baseline, at the end of treatment (EOT) and at the 4-month follow-up. Treatment outcome, measured by binge eating frequency, purging frequency, global eating disorder severity, emotion regulation, self-oriented cognition, depression, anxiety and self-esteem, was determined using generalized estimating equations (GEEs), logistic regression and a general linear model (intent-to-treat).

RESULTS

Both treatments were associated with significant improvement in bulimic symptoms and in all measures of outcome, and no statistically significant differences were observed between the two conditions at EOT or follow-up. Intent-to-treat abstinence rates for ICAT (37.5% at EOT, 32.5% at follow-up) and CBT-E (22.5% at both EOT and follow-up) were not significantly different.

CONCLUSIONS

ICAT was associated with significant improvements in bulimic and associated symptoms that did not differ from those obtained with CBT-E. This initial randomized controlled trial of a new individual psychotherapy for BN suggests that targeting emotion and self-oriented cognition in the context of nutritional rehabilitation may be efficacious and worthy of further study.

The divide between "evidenced-based" approaches and practitioners of traditional theories of family therapy

Evidenced-based approaches continue to grow in the field of family therapy. However, practicing family therapists do not always embrace these approaches. In this article, we explore factors contributing to practitioners' concerns with evidence-based treatments and suggest a broader, more clinically palatable view of evidenced-based treatment. We also suggest how family therapy researchers, practitioners, and educators might begin to close the researcher-clinician divide in the best interest of all concerned.

The research-practice gap: bridging the schism between eating disorder researchers and practitioners

OBJECTIVE

The field of eating disorders (EDs) treatment has been beset by a marked disjunction between scientific evidence and clinical application. We describe the nature and scope of the research-practice gap in the ED field.

METHOD

We draw on surveys and broader literature to better understand the research-practice gap in ED treatment and reasons for resistance to evidence-based practice.

RESULTS

We identify three sources of the research-practice gap: (1) attitudinal factors, (2) differences in the definition of "evidence," and (3) cognitive factors, especially naïve realism and confirmation bias. We affirm the role of science as a safeguard against human fallibility and as a means of bridging the research-practice gap, and delineate key principles of scientific thinking for ED researchers and practitioners.

DISCUSSION

We conclude with proposals for narrowing the research-practice gap in ED treatment and enhancing the quality of interventions for ED clients.

Eating disorder prevention: current evidence-base and future directions

OBJECTIVE

This narrative review sought to (a) characterize prevention programs that have produced reliable, reproducible, and clinically meaningful effects in efficacy trials, (b) discuss effectiveness trials that have tested whether prevention programs produce intervention effects under ecologically valid real-world conditions, (c) discuss dissemination efforts and research on dissemination, and (d) offer suggestions regarding directions for future research in this field.

CONCLUSION

A literature revealed that 6 prevention programs have produced significant reductions in eating disorder symptoms through at least 6-month follow-up and that 2 have significantly reduced future eating disorder onset. Effectiveness trials indicate that 2 prevention programs have produced effects under ecologically valid conditions that are only slightly attenuated. Although there have been few dissemination efforts, evidence suggests that a community participatory approach is most effective. Lastly, it would be useful to develop programs that produce larger and more persistent reductions in eating disorder symptoms and eating disorder onset, focus more on effectiveness trials that confirm that prevention programs produce clinically meaningful effects under real-world conditions, conduct meditational, mechanisms of action, and moderator research that provides stronger support for the intervention theory of prevention programs, and investigate the optimal methods of disseminating and implementing evidence-based prevention programs.

The dissemination and implementation of psychological treatments: problems and solutions

Treatment researchers expend their efforts identifying effective treatments, and for whom and how they work, but there are matters over and above these that are of concern when it comes to dissemination and implementation. These include the clinical range of the interventions concerned, the ease with which they can be learned, and their mode of delivery. It is these three topics, as they apply to the psychological treatment of eating disorders, that form the focus of this article. Alongside these considerations, we discuss how modern technology has the potential to transform both treatment and training.

The evidence-based practice of psychotherapy: facing the challenges that lie ahead

What does the future hold for psychotherapy research and practice? We review some key influences, including declining psychotherapy utilization, increasing impact of evidence-based medical practices, over-medicalizing of mental health problems, and changing priorities from grant funding agencies. These factors hold potential opportunities but also major pitfalls that will need to be carefully navigated related to implementation/dissemination issues, interdisciplinary collaborations, and psychosocial versus biomedical perspectives related to the nature and treatment of psychopathology. In addition, we review and comment on the other articles contained in this special issue pertaining to the future of evidence-based psychotherapy.

Eating disorders in adolescents: review of treatment studies that include psychodynamically informed therapy

In clinical practice, psychodynamic approaches represent an important component of the treatment for young people with eating disorders (EDs), even though the research literature remains modest regarding the most effective treatment for children, adolescents, or adults with an ED. Although there are very few clinical research studies of individual or family psychodynamic treatments of EDs, there is some evidence for efficacy from clinical trials. This article reviews studies of psychodynamically informed therapies for the treatment of EDs and discusses how the findings, although limited, suggest that further research into psychodynamic treatments of EDs in youth is warranted.

Train-the-trainer: implementation of cognitive behavioural guided self-help for recurrent binge eating in a naturalistic setting

OBJECTIVE

The present study evaluated the feasibility and acceptability of cognitive behavioural guided self-help (CBTgsh) for recurrent binge eating using the train-the-trainer implementation strategy.

METHOD

After receiving expert-led training in CBTgsh, a master's-level graduate student in clinical psychology subsequently trained and supervised less experienced graduate students to implement the treatment in an open clinical trial. Participants were 38 treatment-seeking students at a university counselling centre with recurrent binge eating, featuring cases of bulimia nervosa, binge eating disorder, or eating disorder not otherwise specified.

RESULTS

Intent-to-treat (ITT) analyses revealed 42.1% abstinence from binge eating at post-treatment and 47.4% at one-month follow-up. Participants reported significant pretreatment to post-treatment reductions on measures of specific eating disorder psychopathology, general psychopathology, and functional impairment and high levels of treatment acceptability.

CONCLUSIONS

These results provide 'proof-of-concept' for the train-the-trainer implementation strategy and add to the evidence supporting the feasibility and effectiveness of CBTgsh in routine clinical care.

Direct-to-consumer marketing of evidence-based psychological interventions: introduction

The dissemination and implementation of evidence-based psychological interventions (EBPIs) to service provision settings has been a major challenge. Most efforts to disseminate and implement EBPIs have focused on clinicians and clinical systems as the consumers of these treatments and thus have targeted efforts to these groups. An alternative, complementary approach to achieve more widespread utilization of EBPIs is to disseminate directly to patients themselves. The aim of this special section is to explore several direct-to-consumer (i.e., patient) dissemination and education efforts currently underway. This manuscript highlights the rationale for direct-to-patient dissemination strategies as well as the application of marketing science to dissemination efforts. Achieving greater access to EBPIs will require the use of multiple approaches to overcome the many and varied barriers to successful dissemination and implementation.

CBT4BN versus CBTF2F: comparison of online versus face-to-face treatment for bulimia nervosa

Cognitive-behavioral therapy (CBT) is currently the "gold standard" for treatment of bulimia nervosa (BN), and is effective for approximately 40-60% of individuals receiving treatment; however, the majority of individuals in need of care do not have access to CBT. New strategies for service delivery of CBT and for maximizing maintenance of treatment benefits are critical for improving our ability to treat BN. This clinical trial is comparing an Internet-based version of CBT (CBT4BN) in which group intervention is conducted via therapeutic chat group with traditional group CBT (CBTF2F) for BN conducted via face-to-face therapy group. The purpose of the trial is to determine whether manualized CBT delivered via the Internet is not inferior to the gold standard of manualized group CBT. In this two-site randomized controlled trial, powered for non-inferiority analyses, 180 individuals with BN are being randomized to either CBT4BN or CBTF2F. We hypothesize that CBT4BN will not be inferior to CBTF2F and that participants will value the convenience of an online intervention. If not inferior, CBT4BN may be a cost-effective approach to service delivery for individuals requiring treatment for BN.

Current and emerging directions in the treatment of eating disorders

Eating disorders are a significant source of psychiatric morbidity in young women and demonstrate high comorbidity with mood, anxiety, and substance use disorders. Thus, clinicians may encounter eating disorders in the context of treating other conditions. This review summarizes the efficacy of current and emerging treatments for anorexia nervosa (AN), bulimia nervosa (BN), and binge eating disorder (BED). Treatment trials were identified using electronic and manual searches and by reviewing abstracts from conference proceedings. Family based therapy has demonstrated superiority for adolescents with AN but no treatment has established superiority for adults. For BN, both 60 mg fluoxetine and cognitive behavioral therapy (CBT) have well-established efficacy. For BED, selective serotonin reuptake inhibitors, CBT, and interpersonal psychotherapy have demonstrated efficacy. Emerging directions for AN include investigation of the antipsychotic olanzapine and several novel psychosocial treatments. Future directions for BN and BED include increasing CBT disseminability, targeting affect regulation, and individualized stepped-care approaches.

Cognitive-behavioral guided self-help for eating disorders: effectiveness and scalability

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.

Theoretical and practical barriers to practitioners' willingness to seek training in empirically supported treatments

To identify barriers to the dissemination of empirically supported treatments (ESTs), a random sample of psychologists in independent practice (N=1291) was asked to complete measures of attitudes towards ESTs and willingness to attend a 3-hour, 1-day, or 3-day workshop in an EST of their choice. The strongest predictor of unwillingness to obtain EST training was the amount of time and cost required for the workshop, followed by objections to the need for EST training. Psychodynamic (compared to cognitive-behavioral) and more experienced practitioners agreed more strongly with the objections to ESTs overall, as did those whose graduate schools had not emphasized psychotherapy research. Results suggest that both practical and theoretical barriers are significant obstacles to EST dissemination.

Guided self-help treatment for recurrent binge eating: replication and extension

OBJECTIVE

The aim of this study was to replicate and extend results of a previous blended efficacy and effectiveness trial of a low-intensity, manual-based guided self-help form of cognitive-behavioral therapy (CBT-GSH) for the treatment of binge eating disorders in a large health maintenance organization (HMO) and to compare them with usual care.

METHODS

To extend previous findings, the investigators modified earlier recruitment and assessment approaches and conducted a randomized clinical trial to better reflect procedures that may be reasonably carried out in real-world practices. The intervention was delivered by master's-level interventionists to 160 female members of a health maintenance organization who met diagnostic criteria for recurrent binge eating. Data collected at baseline, immediately posttreatment, and at six- and 12-month follow-ups were used in intent-to-treat analyses.

RESULTS

At the 12-month follow-up, CBT-GSH resulted in greater remission from binge eating (35%, N=26) than usual care (14%, N=10) (number needed to treat=5). The CBT-GSH group also demonstrated greater improvements in dietary restraint (d=.71) and eating, shape, and weight concerns (d=1.10, 1.24, and .98, respectively) but not weight change.

CONCLUSIONS

Replication of the pattern of previous findings suggests that CBT-GSH is a robust treatment for patients with recurrent binge eating. The magnitude of changes was significantly smaller than in the original study, however, suggesting that patients recruited and assessed with less intensive procedures may respond differently from their counterparts enrolled in trials requiring more comprehensive procedures.

Stepped care and cognitive-behavioural therapy for bulimia nervosa: randomised trial

BACKGROUND

This study compared the best available treatment for bulimia nervosa, cognitive-behavioural therapy (CBT) augmented by fluoxetine if indicated, with a stepped-care treatment approach in order to enhance treatment effectiveness.

AIMS

To establish the relative effectiveness of these two approaches.

METHOD

This was a randomised trial conducted at four clinical centres (Clinicaltrials.gov registration number: NCT00733525). A total of 293 participants with bulimia nervosa were randomised to one of two treatment conditions: manual-based CBT delivered in an individual therapy format involving 20 sessions over 18 weeks and participants who were predicted to be non-responders after 6 sessions of CBT had fluoxetine added to treatment; or a stepped-care approach that began with supervised self-help, with the addition of fluoxetine in participants who were predicted to be non-responders after six sessions, followed by CBT for those who failed to achieve abstinence with self-help and medication management.

RESULTS

Both in the intent-to-treat and completer samples, there were no differences between the two treatment conditions in inducing recovery (no binge eating or purging behaviours for 28 days) or remission (no longer meeting DSM-IV criteria). At the end of 1-year follow-up, the stepped-care condition was significantly superior to CBT.

CONCLUSIONS

Therapist-assisted self-help was an effective first-level treatment in the stepped-care sequence, and the full sequence was more effective than CBT suggesting that treatment is enhanced with a more individualised approach.

Evaluating the real-world effectiveness of cognitive-behavior therapy efficacy research on eating disorders: a case study from a community-based clinical setting

OBJECTIVE

There is a growing consensus that there is a need to test the real-world effectiveness of eating disorder therapies that show promise in efficacy research. This article provides a narrative account of an NIMH-funded study that attempted to apply efficacy findings from CBT research to an Intensive Outpatient Program (IOP) at the largest community-based eating disorder program in the United States.

METHOD

We describe the study as originally envisioned as well as the various challenges that the researchers and the IOP staff encountered in implementing this study.

RESULTS

The different training, assumptions, and "ways of knowing" of the research team and the treatment staff in regard to the nature of eating disorders and their treatment created multiple challenges for both groups during the study period. We describe valuable lessons learned about how to-and how not to-implement effectiveness designs in clinical settings that are relatively unfamiliar with empirically-based research findings.

DISCUSSION

It is hoped that our experience in attempting to apply efficacy-based research findings on eating disorders treatment in a community-based clinical setting will prove helpful to other researchers and service providers engaging in such translational research.

Cognitive behavioral guided self-help for the treatment of recurrent binge eating

OBJECTIVE

Despite proven efficacy of cognitive behavioral therapy (CBT) for treating eating disorders with binge eating as the core symptom, few patients receive CBT in clinical practice. Our blended efficacy-effectiveness study sought to evaluate whether a manual-based guided self-help form of CBT (CBT-GSH), delivered in 8 sessions in a health maintenance organization setting over a 12-week period by master's-level interventionists, is more effective than treatment as usual (TAU).

METHOD

In all, 123 individuals (mean age = 37.2; 91.9% female, 96.7% non-Hispanic White) were randomized, including 10.6% with bulimia nervosa (BN), 48% with binge eating disorder (BED), and 41.4% with recurrent binge eating in the absence of BN or BED. Baseline, posttreatment, and 6- and 12-month follow-up data were used in intent-to-treat analyses.

RESULTS

At 12-month follow-up, CBT-GSH resulted in greater abstinence from binge eating (64.2%) than TAU (44.6%; number needed to treat = 5), as measured by the Eating Disorder Examination (EDE). Secondary outcomes reflected greater improvements in the CBT-GSH group in dietary restraint (d = 0.30); eating, shape, and weight concern (ds = 0.54, 1.01, 0.49, respectively; measured by the EDE Questionnaire); depression (d = 0.56; Beck Depression Inventory); and social adjustment (d = 0.58; Work and Social Adjustment Scale), but not weight change.

CONCLUSIONS

CBT-GSH is a viable first-line treatment option for the majority of patients with recurrent binge eating who do not meet diagnostic criteria for BN or anorexia nervosa.

Cost-effectiveness of guided self-help treatment for recurrent binge eating

OBJECTIVE

Adoption of effective treatments for recurrent binge-eating disorders depends on the balance of costs and benefits. Using data from a recent randomized controlled trial, we conducted an incremental cost-effectiveness analysis (CEA) of a cognitive-behavioral therapy guided self-help intervention (CBT-GSH) to treat recurrent binge eating compared to treatment as usual (TAU).

METHOD

Participants were 123 adult members of an HMO (mean age = 37.2 years, 91.9% female, 96.7% non-Hispanic White) who met criteria for eating disorders involving binge eating as measured by the Eating Disorder Examination (C. G. Fairburn & Z. Cooper, 1993). Participants were randomized either to treatment as usual (TAU) or to TAU plus CBT-GSH. The clinical outcomes were binge-free days and quality-adjusted life years (QALYs); total societal cost was estimated using costs to patients and the health plan and related costs.

RESULTS

Compared to those receiving TAU only, those who received TAU plus CBT-GSH experienced 25.2 more binge-free days and had lower total societal costs of $427 over 12 months following the intervention (incremental CEA ratio of -$20.23 per binge-free day or -$26,847 per QALY). Lower costs in the TAU plus CBT-GSH group were due to reduced use of TAU services in that group, resulting in lower net costs for the TAU plus CBT group despite the additional cost of CBT-GSH.

CONCLUSIONS

Findings support CBT-GSH dissemination for recurrent binge-eating treatment.

Adolescent eating disorders: treatment and response in a naturalistic study

This naturalistic study investigated the treatment and outcome of adolescents with eating disorders (EDs) in the community. Clinicians from a practice-research network provided data on ED symptoms, global functioning, comorbidity, treatment, and outcome for 120 adolescents with EDs. ED "not otherwise specified" was the most common ED diagnosed. After an average of 8 months of treatment, about one third of patients had recovered, with patients with anorexia nervosa showing the most improvement. Clinicians utilized a range of psychotherapy interventions and two thirds of the patients had received adjunct psychoactive medication. Although CBT showed the strongest association with outcome in a subsample characterized by poor relational/personality functioning, dynamic therapy was associated with better global outcome in the overall sample.

How does overeaters anonymous help its members? A qualitative analysis

Overeaters Anonymous (OA) is a 12-step, self-help group for individuals who perceive themselves to have problems with compulsive overeating. Despite the popularity of OA and the frequent use of addictions-based treatments for eating disorders, little is known about how OA is helpful. The purpose of this qualitative study was to explore members' experiences with and perceptions of OA. We conducted three focus groups with self-selected members of OA (N = 20). We present three primary themes that emerged from the analysis of the focus groups' discussions, which emphasize why individuals entered OA, OA's 'tools', and how individuals perceived OA to 'work'. Overall, although participants agreed OA was helpful to them, there was no consensus regarding how OA 'works'.