Patient Responsiveness to a Sleep and Circadian Intervention in a Sample of Adults With Serious Mental Illness

Understanding patient responsiveness, a component of fidelity, is essential as it impacts treatment outcome and ongoing use of treatment elements. This study evaluated patient responsiveness—operationalized as receptivity to treatment modules and ratings of the usefulness and the utilization of treatment elements—to the Transdiagnostic Intervention for Sleep and Circadian Dysfunction (TranS-C) in a sample of adults with serious mental illness (SMI) and sleep/circadian dysfunction. Adults with SMI and sleep/circadian dysfunction (N = 104) received TranS-C in a community mental health setting. Independent raters rated TranS-C sessions to assess receptivity. At posttreatment and 6-month follow-up, participants completed a usefulness scale, utilization scale, the PROMIS Sleep Disturbance (PROMIS-SD) and Sleep-Related Impairment (PROMIS-SRI) scales, DSM-5 Cross-Cutting Measure (DSM-5-CC), and Sheehan Disability Scale (SDS). Receptivity was rated as somewhat to fully understood, and predicted a reduction on the DSM-5-CC. On average, participants rated TranS-C as moderately useful and utilized treatment elements occasionally. Ratings of usefulness were associated with the PROMIS-SD, PROMIS-SRI, and DSM-5-CC at posttreatment, but not with the SDS. Ratings of utilization were not associated with outcome. The findings add to the literature on patient responsiveness, an implementation outcome, and provide data on the utility of TranS-C within a community mental health setting.     

Change in Dysfunctional Beliefs About Sleep in Behavior Therapy,Cognitive Therapy,and Cognitive-Behavioral Therapy for Insomnia

As part of a larger randomized controlled trial, 188 participants were randomized to behavior therapy (BT), cognitive therapy (CT), or cognitive-behavioral therapy (CBT) for insomnia. The aims of this study were threefold: (a) to determine whether change in dysfunctional beliefs about sleep was related to change in sleep, insomnia symptoms, and impairment following treatment; (b) to determine whether BT, CT, and CBT differ in their effects on dysfunctional beliefs; and (c) to determine whether the treatments differ in their effects on particular kinds of dysfunctional beliefs. Beliefs, sleep, insomnia symptoms, and sleep-related psychosocial impairment were assessed at pretreatment, posttreatment, and 6- and 12-month follow-up. Greater change in dysfunctional beliefs occurring over the course of BT, CT, or CBT was associated with greater improvement in insomnia symptoms and impairment at posttreatment and both follow-ups. All groups experienced a significant decrease in dysfunctional beliefs during treatment, which were sustained through 6- and 12-month follow-up. Compared with the BT group, a greater proportion of participants in the CT and/or CBT groups endorsed dysfunctional beliefs below a level considered clinically significant at posttreatment and 12-month follow-up. The results demonstrate the importance of targeting dysfunctional beliefs in insomnia treatment, suggest that beliefs may be significantly modified with BT alone, and indicate that cognitive interventions may be particularly powerful in enhancing belief change.     

The Validation of a Provider-Reported Fidelity Measure for the Transdiagnostic Sleep and Circadian Intervention in a Community Mental Health Setting

Monitoring treatment fidelity is essential to check if patients receive adequate doses of treatment and to enhance our theoretical understanding of how psychosocial treatments work. Developing valid and efficient measures to assess fidelity is a priority for dissemination and implementation efforts. The present study reports on the psychometric properties of the Provider-Rated TranS-C Checklist—a provider-reported fidelity measure for the Transdiagnostic Sleep and Circadian Intervention (TranS-C). Adults with severe mental illness (SMI; N = 101) seeking treatment in a community mental health setting received eight sessions of TranS-C. Therapists completed the Provider-Rated TranS-C Checklist at the end of each treatment session (N = 808) to indicate which modules they delivered during that session. To assess convergent validity, independent raters scored modules delivered from audio recordings of a subset of sessions (n = 257) for the modules delivered using the Independent-Rater TranS-C Checklist. Using exploratory factor analysis, a unidimensional scale composed of TranS-C’s modules was identified. Provider-Rated TranS-C Checklist scores were positively associated with the Independent-Rater TranS-C Checklist scores demonstrating convergent validity. Results indicate that the Provider-Rated TranS-C Checklist yields reliable and valid scores of providers’ delivery of TranS-C.     

A Pilot Randomized Controlled Trial of the Insomnia Coach Mobile App to Assess Its Feasibility,Acceptability, and Potential Efficacy

Insomnia is highly prevalent among military veterans but access to cognitive-behavioral therapy for insomnia (CBT-I) is limited. Thus, this study examined the feasibility, acceptability, and potential efficacy of Insomnia Coach, a CBT-I-based, free, self-management mobile app. Fifty U.S. veterans, who were mostly male (58%) and mean age 44.5 (range = 28–55) years with moderate insomnia symptoms were randomized to Insomnia Coach (n = 25) or a wait-list control condition (n = 25) for 6 weeks. Participants completed self-report measures and sleep diaries at baseline, posttreatment, and follow-up (12 weeks postrandomization), and app participants (n = 15) completed a qualitative interview at posttreatment. Findings suggest that Insomnia Coach is feasible to use, with three quarters of participants using the app through 6 weeks and engaging with active elements. For acceptability, perceptions of Insomnia Coach were very favorable based on both self-report and qualitative interview responses. Finally, for potential efficacy, at posttreatment, a larger proportion of Insomnia Coach (28%) than wait-list control participants (4%) achieved clinically significant improvement (p = .049) and there was a significant treatment effect on daytime sleep-related impairment (d = −0.6, p = .044). Additional treatment effects emerged at follow-up for insomnia severity (d = −1.1, p = .001), sleep onset latency (d = −0.6, p = .021), global sleep quality (d = −0.9, p = .002), and depression symptoms (d = −0.8, p = .012). These findings provide preliminary evidence that among veterans with moderate insomnia symptoms, a CBT-I-based self-management app is feasible, acceptable, and promising for improving insomnia severity and other sleep-related outcomes. Given the vast unmet need for insomnia treatment in the population, Insomnia Coach may provide an easily accessible, convenient public health intervention for individuals not receiving care.     

Are changes in beliefs and attitudes about sleep related to sleep improvements in the treatment of insomnia?

Dysfunctional beliefs and attitudes about sleep are presumed to play an important mediating role in perpetuating insomnia. The present study evaluated the impact of cognitive-behavioral and pharmacological treatments for insomnia on sleep-related beliefs and attitudes and the relationship between those changes and sleep improvements. The participants were older adults with chronic and primary insomnia. They received cognitive-behavior therapy (CBT), pharmacotherapy (PCT), combined CBT+PCT (COMB), or a medication placebo (PLA). In addition to daily sleep diaries and sleep laboratory measures, the participants completed the dysfunctional beliefs and attitudes about sleep scale (DBAS) at baseline and posttreatment, and at 3-, 12- and 24-month follow-up assessments. The results showed that CBT and COMB treatments produced greater improvements of beliefs and attitudes about sleep at posttreatment than PCT and PLA. Reductions of DBAS scores were significantly correlated with improvements of sleep efficiency as measured by daily sleep diaries and by polysomnography. In addition, more adaptive beliefs and attitudes about sleep at posttreatment were associated with better maintenance of sleep improvements at follow-ups. These findings highlight the importance of targeting sleep-related beliefs and attitudes in the treatment of insomnia.     

Serial Mediators of Memory Support Strategies Used With Cognitive Therapy for Depression: Improving Outcomes Through Patient Adherence and Treatment Skills

Patient memory for treatment is poor. Memory support strategies can be integrated within evidence-based psychological treatments to improve patient memory for treatment, and thereby enhance patient outcomes. The present study evaluated possible mechanisms of these memory support strategies. Specifically, we tested whether therapist use of memory support strategies indirectly predicts improved patient outcomes via serial improvements in (a) patient adherence throughout treatment and (b) patient utilization and competency of treatment skills. Adults with major depressive disorder (N = 178, mean age = 37.93, 63% female, 17% Hispanic or Latino) were randomized to Cognitive Therapy plus a Memory Support Intervention or Cognitive Therapy-as-usual. Because therapists from both treatment groups used memory support strategies, data from conditions were combined. Blind assessments of depression severity and overall impairment were conducted before treatment, immediately posttreatment (POST), at 6-month follow-up (6FU), and at 12-month follow-up (12FU). Patient adherence to treatment was rated by therapists and averaged across treatment sessions. Patients completed measures of treatment mechanisms—namely, utilization and competency in cognitive therapy skills—at POST, 6FU, and 12FU. Results of serial mediation models indicated that more therapist use of memory support predicted lower depression severity at POST, 6FU, and 12FU indirectly and sequentially through (a) increased patient adherence during treatment and (b) more utilization and competency of Cognitive Therapy skills at POST, 6FU, and 12FU. The same patterns were found for serial mediation models predicting lower overall impairment at POST, 6FU, and 12FU. Together, boosting memory for treatment may represent a promising means to enhance pantreatment mechanisms (i.e., adherence and treatment skills) as well as patient outcomes.     

An open trial of cognitive therapy for chronic insomnia

We describe the development of a cognitive therapy intervention for chronic insomnia. The therapy is based on a cognitive model which suggests that the processes that maintain insomnia include: (1) worry and rumination, (2) attentional bias and monitoring for sleep-related threat, (3) unhelpful beliefs about sleep, (4) misperception of sleep and daytime deficits and (5) the use of safety behaviors that maintain unhelpful beliefs. The aim of cognitive therapy for insomnia is to reverse all five maintaining processes during both the night and the day. In an open trial 19 patients meeting diagnostic criteria for primary insomnia were treated with cognitive therapy for insomnia. Assessments were completed pretreatment, posttreatment and at 3-, 6- and 12-month followup. The significant improvement in both nighttime and daytime impairment evident at the posttreatment assessment was retained up to the 12 month followup.     

Sleep facilitates consolidation of positive emotional memory in healthy older adults

ABSTRACT

Evidence has demonstrated that sleep-related memory consolidation declines in ageing. However, little is known about age-related changes to sleep-related emotional memory consolidation, especially when considering the positivity effect observed in older adults. In the present study, we sought to explore whether there is a positive emotional bias in sleep-related memory consolidation among healthy older adults. Young and older adults were randomly assigned either into a sleep or wake condition. All participants encoded positive, negative, and neutral stimuli and underwent recognition tests immediately (test 1), after a 12-hour sleep/wake interval (test 2), and 3 days after test 2 (test 3). Results showed that age-related differences of sleep beneficial effect were modulated by emotion valence. In particular, sleep selectively enhanced positive memory in older adults, while in young adults sleep beneficial effect was manifested in neutral memory. Moreover, the sleep beneficial effect can be maintained at least 3 days in both young and older adults. These findings suggest that older adults had preserved but positive bias of sleep-related memory consolidation, which could be one of the underlying mechanisms for their generally better emotional well-being in daily life. These findings highlight the dynamic interplay among sleep and emotional memory in older adults.     

Using Explicit Case Formulation to Improve Cognitive Processing Therapy for PTSD

We investigated the utility of explicit case formulation (CF) within Cognitive Processing Therapy (CPT) for individuals with posttraumatic stress disorder (PTSD). An uncontrolled pre-posttreatment design was used. Participants attended 12–16 weekly sessions of CPT with explicit CF, where CF guided treatment length and treatment components. Treatment was completed by 19 of the 23 participants who started therapy. Results revealed significant reductions in PTSD and depression severity as well as unhelpful PTSD-related beliefs from pre- to posttreatment (ds between 1.10 – 1.92) and treatment gains were maintained at 3-month follow-up. Of the participants available at posttreatment for assessment, 69% (n = 11/16) met good end-state functioning for PTSD and 62% (n = 8/13) did so at follow-up. Finally, 72% (n = 13/18) of those interviewed at posttreatment no longer met criteria for PTSD and this was found for 93% of those assessed at follow-up (n = 14/15). Treatment, and CF in particular, was found to be acceptable by participants. Explicit case formulation did not interfere with positive outcomes of Cognitive Processing Therapy for PTSD. Further clinical implications and future directions for research are discussed.     

An Integrated Sleep and Reward Processing Model of Major Depressive Disorder

Major depressive disorder with comorbid sleep disturbance has been associated with negative outcomes, including lower rates of treatment response and a greater likelihood of depressive relapse compared to those without sleep disturbance. However, little, if any, research has been conducted to understand why such negative treatment outcomes occur when sleep disturbance is present. In this conceptual review, we argue that the relationship of sleep disturbance and negative treatment outcomes may be mediated by alterations in neural reward processing in individuals with blunted trait-level reward responsivity. We first briefly characterize sleep disturbance in depression, discuss the nature of reward processing impairments in depression, and summarize the sleep/reward relationship in healthy human subjects. We then introduce a novel Integrated Sleep and Reward model of the course and maintenance of major depressive disorder and present preliminary evidence of sleep and reward interaction in unipolar depression. Finally, we discuss limitations of the model and offer testable hypotheses and directions for future research.     

Psychological treatment of secondary insomnia

Psychological treatment of insomnia has focused on primary insomnia (i.e., having a psychological origin). Secondary insomnia, sleep disturbance caused by a psychiatric or medical disorder, although it is more common than primary insomnia, has received very little attention as a result of the belief that it would be refractory to treatment. The present study randomly assigned older adults with secondary insomnia to a treatment group, 4 sessions composed of relaxation and stimulus control, or a no-treatment control group. Self-report assessments conducted at pretreatment, posttreatment, and a 3-month follow-up revealed that treated participants showed significantly greater improvement on wake time during the night, sleep efficiency percentage, and sleep quality rating. The authors hypothesize that treatment success was probably due in part to difficulty in diagnostic discrimination between primary and secondary insomnia.     

Efficacy of Cognitive Therapy for Body Dysmorphic Disorder: A Randomized Controlled Pilot Trial

Dysfunctional cognitive processes and maladaptive interpersonal patterns have been postulated to maintain body dysmorphic disorder (BDD). The present trial evaluated CT for BDD (CT-BDD), which includes modules targeting maladaptive cognitive processing in BDD, as well as elements of schema therapy related to interpersonal problems. We investigated whether (a) CT-BDD is effective, as compared with a wait-list (WL) group at Week 12; (b) outcome of CT-BDD is maintained at posttreatment and 3- and 6-months follow-up; and (c) whether changes in shame and insight mediate changes in BDD symptom severity. Forty adults with BDD were randomized to 36 weeks immediate CT-BDD (n = 21), or to 12-week WL (n = 19). At Week 12, immediate CT-BDD was significantly superior to WL in clinician-rated BDD symptom severity, insight, self-reported BDD symptoms, shame, depression, general symptomatology, and life satisfaction. Changes in outcomes were associated with moderate to large effect sizes at Week 12. Reductions in shame and increase in insight separately mediated changes in BDD symptom severity during treatment at Week 12. From baseline to posttreatment, significant improvements occurred within CT-BDD in clinician-rated symptom severity, insight, depression, global functioning, self-reported BDD symptoms, shame, depression, general symptomatology, and life satisfaction. At posttreatment, improvements were associated with large effect sizes and were maintained at 3- and 6-month follow-up. Preliminary results support the efficacy of CT-BDD. Addressing interpersonal problems in addition to cognitive dysfunctions may increase the benefit of CBT for BDD patients.     

Improved Parent Cognitions Relate to Immediate and Follow-Up Treatment Outcomes for Children With ADHD-Predominantly Inattentive Presentation

We investigated treatment effects on parenting self-efficacy and parent cognitive errors, and whether these parent cognitions are related to short- and long-term outcomes in parenting behaviors in psychosocial treatment for youth with attention-deficit/hyperactivity disorder, predominantly inattentive presentation (ADHD-I). In a randomized controlled trial across two sites (University of California, San Francisco, and University of California, Berkeley), 199 children between the ages of 7 and 11 were randomized to the Child Life and Attention Skills (CLAS; n = 74) program, parent-focused treatment (PFT; n = 74), or treatment as usual (TAU; n = 51). Parents reported on self-efficacy, cognitive errors, positive parenting, and negative parenting prior to treatment, immediately after treatment, and in the next school year at follow-up. Compared to TAU, CLAS and PFT had higher posttreatment parenting self-efficacy, and CLAS alone had lower posttreatment parent cognitive errors. At follow-up, only CLAS had improved parent cognitive errors compared to TAU. No other between-group differences were found in parenting self-efficacy or cognitive errors. Improved parenting self-efficacy was associated with improved posttreatment negative parenting outcomes for PFT and CLAS, and improved parent cognitive errors were also related to improvements in positive and negative posttreatment parenting outcomes for CLAS. Posttreatment parenting self-efficacy mediated follow-up negative parenting outcomes for CLAS and posttreatment parent cognitive errors mediated improved follow-up positive and negative parenting outcomes for CLAS. PFT and CLAS led to enhanced parenting self-efficacy, and CLAS appears especially robust in improving parent cognitive errors both in the short and long term. Pathways provide support for the possibility of parent cognitions as mediators of treatment effects on parenting; clinical focus on such cognitions may be useful.     

Effectiveness of an Internet Dissonance-Based Eating Disorder Prevention Intervention Among Body-Dissatisfied Young Chinese Women

Body image disturbances are widespread in highly populated, rapidly developing Asian nations such as China, but there are severe shortages of practitioners qualified to treat these issues. In such contexts, validated online interventions offer a potentially viable approach for addressing the lack of treatment resources. In this study, we evaluated effects of the eBody Project, an online, dissonance-based eating disorder prevention program, on functioning among body-dissatisfied young Chinese women. Participating women were randomly assigned to the 6-week eBody Project intervention (n = 191) versus an education brochure control condition (n = 181). Self-report assessments of eating disorder risk factors (body dissatisfaction, thin ideal internalization, depressive symptoms, restrained eating), self-esteem, body appreciation, and disordered eating were completed at baseline, posttreatment, and a 6-month follow-up. There were no intervention differences on outcomes before treatment but eBody Project women experienced significantly larger improvements on all outcomes following treatment and/or at follow-up compared to controls; corresponding effect sizes were small to medium. Results indicated the eBody Project program is a promising intervention for young women at risk for eating disorders in China and provide foundations for broad implementation in low- and middle-income countries where resources for in-person therapy and supervision are limited or unavailable altogether.     

Predictors and Moderators of Provoked Vestibulodynia Treatment Outcome Following a Randomized Trial Comparing Cognitive-Behavioral Couple Therapy to Overnight Lidocaine

Provoked vestibulodynia is a vulvar pain condition causing sexual dysfunction, affecting 8% to 10% of women. Our recently published randomized clinical trial (N = 108 couples) found that cognitive behavioral couple therapy (CBCT) and topical lidocaine reduced women’s pain and associated sexual symptoms, with CBCT showing more benefits. Little is known about pretreatment predictors of treatment outcomes in couples sex therapy. In the current study, we examined women and their partners’ pretreatment demographic (age, relationship length), clinical (pain duration, anxiety) and interpersonal (partner responses to pain, sexual goals) predictors/moderators of women’s pain intensity, pain unpleasantness, and sexual function at posttreatment and 6-month follow-up. Longer relationship duration, lower anxiety in women, partner higher solicitousness and partner higher approach sexual goals predicted better pain outcomes for women with PVD irrespective of treatment condition. CBCT was more effective than lidocaine for improving women’s sexual function at posttreatment when, at pretreatment, women had partners with higher anxiety and women reported lower approach sexual goals, whereas lidocaine was more effective for improving women’s sexual function at follow-up when partners had higher approach sexual goals. Findings can assist clinicians in determining what treatment will be most beneficial for whom.     

Preliminary Evaluation of Sleepwise Program for Children With Sleep Disturbance and Developmental Delay

Sleep disturbances are very prevalent in children with developmental delay. Parental-assisted behavioral strategies have been used effectively in school-aged children; however, multimodal treatment for preschool-aged children is lacking. The current study is a preliminary investigation of the effectiveness of a parent group program called Sleepwise designed for young children with developmental delay and incorporating behavioral, communicative, and sensory strategies. Six parents attended three workshop sessions and implemented individualized treatment plans. Initial results revealed significant posttreatment reductions in child sleep disturbances and behavioral problems, with high treatment acceptability ratings by parents. Outcomes were generally maintained at 1-month follow-up.     

Randomized Controlled Trial of a Smartphone Application as an Adjunct to Acceptance and Commitment Therapy for Smoking Cessation

There is a major public health need for innovative and efficacious behavioral and cognitive interventions for smoking cessation. This randomized controlled trial evaluated the efficacy of an acceptance and commitment therapy (ACT) smartphone application in augmenting ACT group treatment for smoking cessation. One hundred fifty adults smoking 10 or more cigarettes per day were randomly assigned to 6 weekly group sessions of behavioral support, ACT, or ACT combined with the smartphone application. Access to the app was provided from the start of the in-person treatment until the 6-month follow-up assessment. Participants were encouraged to make their quit attempts after the third session, and the posttreatment assessment occurred 3 weeks later. Measures of smoking status and ACT processes were obtained at baseline, posttreatment, and 6-month follow-up. Biochemically verified quit rates in the combined, ACT, and behavioral support groups were 36% (p = .079 relative to ACT; p = .193 relative to behavioral support), 20% (p = .630 relative to behavioral support) and 24% at posttreatment, as compared with 24% (p = .630 relative to behavioral support), 24% (p = .630 relative to behavioral support) and 20% at follow-up. There was no significant difference (p = > .999) in the primary outcome of biochemically verified 7-day point-prevalence abstinence at 6-month follow-up between the combined and ACT groups. The combined group reported significantly greater smoking reduction, acceptance and present-moment awareness than the behavioral support group at posttreatment, but not at follow-up. There were no significant differences between the groups in positive mental health. Contrary to hypotheses, the ACT group did not display significant improvements in positive mental health or ACT processes relative to the behavioral support group at posttreatment or follow-up. Implications and directions for future research are discussed.     

A pilot study of cognitive-behavioral therapy of insomnia in people with mild depression

In some cases, insomnia and depression may have a reciprocal relationship, in which each aggravates and maintains the other. To test the hypothesis that reduction of insomnia would result in reduction of depression in patients (N=10) with both disorders, a repeated-measures design was used comparing depression and insomnia levels before and after 6 sessions of cognitive-behavioral therapy of insomnia. Posttreatment, 100% of completers (n=8) had a normalized sleeping pattern, and 87.5% had normalized depression scores. Significant posttreatment improvement was seen in sleep onset latency (-31 min), wake time after sleep onset (-24 min), total sleep time (+65 min), sleep efficiency (+14%), and sleep quality (+19%), which was maintained at 3-month follow-up. A decreasing trend occurred in depression scores from pre- to posttreatment, which reached significance at 3-month follow-up. Intent-to-treat analyses showed similar results.     

Comparing Traditional and Ebook-Augmented Parent-Child Interaction Therapy (PCIT): A Randomized Control Trial of Pocket PCIT

Disruptive behavior in young children is one of the most common referrals to behavioral health providers. While numerous effective parenting programs, such as parent–child interaction therapy (PCIT), exist for improving children’s behaviors, challenges with treatment engagement and retention limit the intended positive impact on child and caregiver outcomes, particularly for racial and ethnic minority families. In an effort to address barriers contributing to poor engagement and retention in traditional PCIT service delivery and among ethnic and racial minority families, a multimedia PCIT ebook was developed and evaluated. In a sample of the general public that utilized the ebook, users were found to be more engaged in viewing embedded videos within the ebook that were related to expert skill explanations and skill demonstrations than caregiver testimonies. A randomized controlled trial was also conducted to evaluate the extent that the ebook + PCIT improved treatment engagement, retention, parenting skills, skill acquisition efficiency, and child behavior above and beyond traditional PCIT. Participating families were randomly assigned to either the traditional PCIT (n = 71) or ebook + PCIT (n = 107) group using an online random number generator. Forty-nine caregivers (traditional PCIT n = 24, ebook + PCIT n = 25) were excluded from analyses because they were lost to follow-up during the intervention. Families in both the traditional PCIT and ebook + PCIT groups demonstrated generally equivalent positive outcomes in treatment engagement (i.e., attendance, treatment length, completion rate) and caregiver skill acquisition efficiency at midtreatment, posttreatment, and 3-month follow-up. The addition of the ebook to PCIT also reduced child disruptive behavior at midtreatment, above and beyond traditional PCIT, but not at posttreatment or follow-up. Clinical implications and future directions are discussed.     

Outcome From a Randomized Controlled Trial of Group Therapy for Binge Eating Disorder: Comparing Dialectical Behavior Therapy Adapted for Binge Eating to an Active Comparison Group Therapy

Dialectical Behavior Therapy for Binge Eating Disorder (DBT-BED) aims to reduce binge eating by improving adaptive emotion-regulation skills. Preliminary findings have been promising but have only compared DBT-BED to a wait-list. To control for the hypothesized specific effects of DBT-BED, the present study compared DBT-BED to an active comparison group therapy (ACGT). Men and women (n = 101) meeting DSM-IV BED research criteria were randomly assigned to 20 group sessions of DBT-BED (n = 50) or ACGT (n = 51). DBT-BED had a significantly lower dropout rate (4%) than ACGT (33.3%). Linear Mixed Models revealed that posttreatment binge abstinence and reductions in binge frequency were achieved more quickly for DBT-BED than for ACGT (posttreatment abstinence rate = 64% for DBT-BED vs. 36% for ACGT) though differences did not persist over the 3-, 6-, and 12-month follow-up assessments (e.g., 12-month follow-up abstinence rate = 64% for DBT-BED vs. 56% for ACGT). Secondary outcome measures revealed no sustained impact on emotion regulation. Although both DBT-BED and ACGT reduced binge eating, DBT-BED showed significantly fewer dropouts and greater initial efficacy (e.g., at posttreatment) than ACGT. The lack of differential findings over follow-up suggests that the hypothesized specific effects of DBT-BED do not show long-term impact beyond those attributable to nonspecific common therapeutic factors.