Is cognitive-behavioural therapy more effective than psychoeducation in bipolar disorder?

REVIEW: Patient, treatment, and systems-level factors in bipolar disorder nonadherence: A summary of the literature

This is a review of adherence determinants in bipolar disorder based on published prospective studies. Patient, treatment, and systems-level adherence determinants are summarized. The review concludes with recommendations on approaches that may minimize nonadherence. MEDLINE, PsychINFO, and the Cochrane Database were searched using key terms of adherence, compliance, or persistence, combined with terms of bipolar disorder, bipolar depression, or mania. Publications were filtered for randomized clinical trials (RCTs). Due to low yields of RCTs, we additionally included prospective nonrandomized clinical and epidemiologic studies, and prospective studies of severe mental illness that had a focus on adherence as an outcome and reported data separately for bipolar disorder. A targeted review of the broader bipolar literature provided background for concluding remarks. Twenty-two publications were identified describing RCTs with a specific population of bipolar disorder and a measure of adherence. Additional prospective nonrandomized studies were also identified. Studies identified three major categories of factors important to adherence: patient, treatment, and systems-associated factors. Patient factors include selected demographic features, symptom severity and phase of illness, presence of past suicide attempts, psychiatric comorbidity, illness and treatment duration, and relationship with providers. Treatment factors include type and intensity of pharmacotherapy and psychotherapy. Systems-level factors include differential levels of care access and costs. There is an overall lack of RCTs, and few prospective studies, on patient and systems-related determinants of adherence. Treatment-related determinants of adherence have the most evidence to date; however, would benefit from larger studies with diverse populations. Careful assessment of treatment adherence (including partial adherence) should be included in all prospective bipolar treatment studies, and studies should be conducted to prospectively evaluate interventions to minimize nonadherence.

A review of empirically supported psychological therapies for mood disorders in adults

BACKGROUND

The mood disorders are prevalent and problematic. We review randomized controlled psychotherapy trials to find those that are empirically supported with respect to acute symptom reduction and the prevention of subsequent relapse and recurrence.

METHODS

We searched the PsycINFO and PubMed databases and the reference sections of chapters and journal articles to identify appropriate articles.

RESULTS

One hundred twenty-five studies were found evaluating treatment efficacy for the various mood disorders. With respect to the treatment of major depressive disorder (MDD), interpersonal psychotherapy (IPT), cognitive behavior therapy (CBT), and behavior therapy (BT) are efficacious and specific and brief dynamic therapy (BDT) and emotion-focused therapy (EFT) are possibly efficacious. CBT is efficacious and specific, mindfulness-based cognitive therapy (MBCT) efficacious, and BDT and EFT possibly efficacious in the prevention of relapse/recurrence following treatment termination and IPT and CBT are each possibly efficacious in the prevention of relapse/recurrence if continued or maintained. IPT is possibly efficacious in the treatment of dysthymic disorder. With respect to bipolar disorder (BD), CBT and family-focused therapy (FFT) are efficacious and interpersonal social rhythm therapy (IPSRT) possibly efficacious as adjuncts to medication in the treatment of depression. Psychoeducation (PE) is efficacious in the prevention of mania/hypomania (and possibly depression) and FFT is efficacious and IPSRT and CBT possibly efficacious in preventing bipolar episodes.

CONCLUSIONS

The newer psychological interventions are as efficacious as and more enduring than medications in the treatment of MDD and may enhance the efficacy of medications in the treatment of BD.

The role of psychotherapy in bipolar disorder

Adjunctive psychosocial interventions for bipolar disorder target many of the issues that are not addressed by medication alone, including non-adherence, efficacy-effectiveness gap and functionality. Psychosocial interventions have been found to reduce relapse, particularly for the depressive pole, and improve functionality. Approaches such as psychoeducation, cognitive behaviour therapy, interpersonal and social rhythm therapy, and family therapy have shown benefits as adjunctive treatments. Each of the various psychosocial interventions has a unique emphasis, but they share common elements. These include: providing information and education; developing a personal understanding of the illness, such as triggers and early warning signs; having prepared strategies in place for early intervention, should symptoms of illness develop; and promoting a collaborative approach. Evidence to date supports the use of adjunctive psychosocial interventions in the management of bipolar disorder.

Cognitive behavioral therapy for mood disorders: efficacy, moderators and mediators

Cognitive behavioral therapy (CBT) is efficacious in the acute treatment of depression and may provide a viable alternative to antidepressant medication (ADM) for even more severely depressed unipolar patients when implemented in a competent fashion. CBT also may be of use as an adjunct to medication treatment of bipolar patients, although there have been few studies and they are not wholly consistent. CBT does seem to have an enduring effect that protects against subsequent relapse and recurrence following the end of active treatment, which is not the case for medications. Single studies that require replication suggest that patients who are married or unemployed or who have more antecedent life events may do better in CBT than in ADM, as might patients who are free from comorbid Axis II disorders, whereas patients with comorbid Axis II disorders seem to do better in ADM than in CBT. There also are indications that CBT may work through processes specified by theory to produce change in cognition that in turn mediate subsequent change in depression and freedom from relapse following treatment termination, although evidence in that regard is not yet conclusive.

Cognitive-behavioral therapy for depression in bipolar disorder: a meta-analysis

Given the prevalence of null hypothesis significance testing, cognitive-behavioral therapy's effect on depressive symptoms of bipolar disorder is not fully understood in the absence of effect size statistics. The present study discusses the disadvantages associated with null hypothesis significance testing and seeks to overcome these shortcomings via conducting a meta-analysis which examines cognitive-behavioral therapy for depressive symptoms in persons with bipolar disorder. A systematic literature search was conducted and included articles were subject to meta-analytic procedures. With a mean weighted Cohen's d of -0.29, relative to treatment as usual, cognitive-behavioral therapy has a small effect on depressive symptoms in persons with bipolar disorder. The strengths, limitations, and need for future research are discussed.

Group-based psychosocial intervention for bipolar disorder: randomised controlled trial

BACKGROUND

Psychosocial interventions have the potential to enhance relapse prevention in bipolar disorder.

AIMS

To evaluate a manualised group-based intervention for people with bipolar disorder in a naturalistic setting.

METHOD

Eighty-four participants were randomised to receive the group-based intervention (a 12-week programme plus three booster sessions) or treatment as usual, and followed up with monthly telephone interviews (for 9 months post-intervention) and face-to-face interviews (at baseline, 3 months and 12 months).

RESULTS

Participants who received the group-based intervention were significantly less likely to have a relapse of any type and spent less time unwell. There was a reduced rate of relapse in the treatment group for pooled relapses of any type (hazard ratio 0.43, 95% CI 0.20-0.95; t(343) = -2.09, P = 0.04).

CONCLUSIONS

This study suggests that the group-based intervention reduces relapse risk in bipolar disorder.

Cognitive behavioural therapy for major psychiatric disorder: does it really work? A meta-analytical review of well-controlled trials

BACKGROUND

Although cognitive behavioural therapy (CBT) is claimed to be effective in schizophrenia, major depression and bipolar disorder, there have been negative findings in well-conducted studies and meta-analyses have not fully considered the potential influence of blindness or the use of control interventions.

METHOD

We pooled data from published trials of CBT in schizophrenia, major depression and bipolar disorder that used controls for non-specific effects of intervention. Trials of effectiveness against relapse were also pooled, including those that compared CBT to treatment as usual (TAU). Blinding was examined as a moderating factor.

RESULTS

CBT was not effective in reducing symptoms in schizophrenia or in preventing relapse. CBT was effective in reducing symptoms in major depression, although the effect size was small, and in reducing relapse. CBT was ineffective in reducing relapse in bipolar disorder.

CONCLUSIONS

CBT is no better than non-specific control interventions in the treatment of schizophrenia and does not reduce relapse rates. It is effective in major depression but the size of the effect is small in treatment studies. On present evidence CBT is not an effective treatment strategy for prevention of relapse in bipolar disorder.

A critical update on psychological interventions for bipolar disorders

Although pharmacotherapy is the mainstay of treatment for bipolar disorder, the combination of evidence-based psychological interventions and drug treatment enhances overall effectiveness, mostly by further protecting patients from relapse/recurrence. In recent years, well-designed controlled studies have added weight to evidence favoring specific psychotherapy modalities for bipolar disorders. However, critical issues that may limit the benefits of psychotherapy in day-to-day clinical practice have emerged. In this article, we critically examine the effectiveness of psychosocial approaches to bipolar illness by reviewing the literature, which has been substantially enriched during the past 5 years. Recent studies further support the fact that psychoeducation and cognitive-behavioral therapy are effective in bipolar disorder, especially the early stages. Family interventions based on a psychoeducational model are also effective. Intensive psychotherapies may be more effective than short, managed care-based ones. Group psychoeducation seems to have long-lasting effects and to be cost-effective. Future studies should focus on neurobiological markers of response to psychotherapy and tailor interventions to specific subtypes.

On the Role of Goal Dysregulation in the Treatment of Bipolar Disorder

Nusslock, Abramson, Harmon-Jones, Alloy, and Coan (this issue) propose that current psychosocial treatments for bipolar disorder be supplemented with interventions focused on altering goal dysregulation pathways. While innovations to existing treatment manuals are always welcome, there are several reasons why this suggestion may require further consideration. We highlight issues pertaining to the status of cognitive-behavioral therapy for bipolar disorder, the distinction between education and psychoeducation, the nature of familial expressed emotion, differences between clinical and analog samples, and the larger question of how to assess mechanisms in psychosocial treatment studies. We also raise the question of whether an optimistic goal orientation can be a protective factor in patients' long-term coping with bipolar disorder.

Psychosocial treatments for bipolar disorder: cost-effectiveness, mediating mechanisms, and future directions

OBJECTIVES

Randomized trials of adjunctive psychotherapy for bipolar disorder are reviewed, in tandem with discussion of cost-effectiveness, mediating mechanisms, and moderators of effects.

METHODS

Systematic searches of the MEDLINE and PSYCHLIT databases yielded 19 randomized controlled trials of individual family and group therapies. Outcome variables included time to recovery, relapse or recurrence, symptom severity, medication adherence, and psychosocial functioning.

RESULTS

Meta-analyses consistently show that disorder-specific psychotherapies [cognitive-behavioral therapy (CBT), interpersonal, family, and group] augment mood stabilizers in reducing rates of relapse (OR = 0.57; 95% CI: 0.39-0.82) over 1-2 years. Specific mediating mechanisms include, but are not limited to, increasing medication adherence, teaching self-monitoring and early intervention with emergent episodes, and enhancing interpersonal functioning and family communication. All therapies have strengths and weaknesses. One group psychoeducation trial, demonstrated effect sizes for recurrence that are at least equivalent to individual therapies, but findings await replication. Family interventions have been successfully administered in both single and multi-family formats, but no studies report the comparative cost-effectiveness of these formats. The best-studied psychotherapy modality, CBT, can have beneficial effects on depression, but findings are inconsistent across studies and vary with sample characteristics and comparison treatments.

CONCLUSIONS

Adjunctive psychotherapies can be cost-effective when weighed against observed reductions in recurrence, hospitalization and functional impairments. Future trials need to (i) clarify which populations are most likely to benefit from which strategies; (ii) identify putative mechanisms of action; (iii) systematically evaluate costs, benefits, and generalizability; and (iv) record adverse effects. The application of psychosocial interventions to young-onset populations deserves further study.

Canadian Network for Mood and Anxiety Treatments (CANMAT) and International Society for Bipolar Disorders (ISBD) collaborative update of CANMAT guidelines for the management of patients with bipolar disorder: update 2009

The Canadian Network for Mood and Anxiety Treatments (CANMAT) published guidelines for the management of bipolar disorder in 2005, with a 2007 update. This second update, in conjunction with the International Society for Bipolar Disorders (ISBD), reviews new evidence and is designed to be used in conjunction with the previous publications. The recommendations for the management of acute mania remain mostly unchanged. Lithium, valproate, and several atypical antipsychotics continue to be first-line treatments for acute mania. Tamoxifen is now suggested as a third-line augmentation option. The combination of olanzapine and carbamazepine is not recommended. For the management of bipolar depression, lithium, lamotrigine, and quetiapine monotherapy, olanzapine plus selective serotonin reuptake inhibitor (SSRI), and lithium or divalproex plus SSRI/bupropion remain first-line options. New data support the use of adjunctive modafinil as a second-line option, but also indicate that aripiprazole should not be used as monotherapy for bipolar depression. Lithium, lamotrigine, valproate, and olanzapine continue to be first-line options for maintenance treatment of bipolar disorder. New data support the use of quetiapine monotherapy and adjunctive therapy for the prevention of manic and depressive events, aripiprazole monotherapy for the prevention of manic events, and risperidone long-acting injection monotherapy and adjunctive therapy, and adjunctive ziprasidone for the prevention of mood events. Bipolar II disorder is frequently overlooked in treatment guidelines, but has an important clinical impact on patients' lives. This update provides an expanded look at bipolar II disorder.

Telehealth and the deaf: a comparison study

Within the deaf population, an extreme mental health professional shortage exists that may be alleviated with videoconferencing technology-also known as telehealth. Moreover, much needed mental health education within the deaf population remains largely inaccessible. Researchers have warned that the deaf population may remain underserved if significant changes do not take place with traditional service delivery methods. This article evaluated the efficacy of telehealth in teaching psychoeducational objectives, with special emphasis given to its application to the deaf population. Results indicate that telehealth can be regarded as an efficacious and cost-effective option in delivering health care to the deaf population. Participants also indicated satisfaction with the telehealth technology. The use of printed transcripts for educational purposes is encouraged given the significant findings in this article. The findings also have implications for the literature on single-session interventions.

Adjunctive psychotherapy for bipolar disorder: state of the evidence

OBJECTIVE

Psychotherapy has long been recommended as adjunctive to pharmacotherapy for bipolar disorder, but it is unclear which interventions are effective for which patients, over what intervals, and for what domains of outcome. This article reviews randomized trials of adjunctive psychotherapy for bipolar disorder.

METHOD

Eighteen trials of individual and group psychoeducation, systematic care, family therapy, interpersonal therapy, and cognitive-behavioral therapy are described. Relevant outcome variables include time to recovery, recurrence, duration of episodes, symptom severity, and psychosocial functioning.

RESULTS

The effects of the treatment modalities varied according to the clinical condition of patients at the time of random assignment and the polarity of symptoms at follow-up. Family therapy, interpersonal therapy, and systematic care appeared to be most effective in preventing recurrences when initiated after an acute episode, whereas cognitive-behavioral therapy and group psychoeducation appeared to be most effective when initiated during a period of recovery. Individual psychoeducational and systematic care programs were more effective for manic than depressive symptoms, whereas family therapy and cognitive-behavioral therapy were more effective for depressive than manic symptoms.

CONCLUSIONS

Adjunctive psychotherapy enhances the symptomatic and functional outcomes of bipolar disorder over 2-year periods. The various modalities differ in content, structure, and associated mediating mechanisms. Treatments that emphasize medication adherence and early recognition of mood symptoms have stronger effects on mania, whereas treatments that emphasize cognitive and interpersonal coping strategies have stronger effects on depression. The placement of psychotherapy within chronic care algorithms and its role as a preventative agent in the early stages of the disorder deserve investigation.