Outcomes of time-limited psychotherapy in applied settings: replicating the Second Sheffield Psychotherapy Project

Amount and frequency of psychotherapy as predictors of treatment outcome for adult depression: A meta-regression analysis

BACKGROUND

It is not clear whether the amount and frequency of psychotherapy is associated with treatment effects for adult depression. We investigated whether a number of indicators of the amount and frequency of psychotherapy were related to the treatment effects in randomized controlled trials (RCTs) comparing individual, face-to-face psychotherapy to a control group (e.g., care-as-usual [CAU] or waitlist condition [WL]).

METHODS

Four databases were systematically searched, and meta-regression analyses conducted to assess the relationship between the effect size (Hedges' g) of the treatment and number of sessions, duration of psychotherapy, total contact time with the therapist, and number of sessions per week.

RESULTS

We included 176 studies (210 comparisons) with 15,158 participants. We did not find a relationship between the effect size, and number of sessions, or total contact time. There was a small negative association between duration of treatment and the effect size, an additional week of treatment was related to a 0.014 decrease in the effect size. In addition, there was a strong association between number of sessions per week and the effect size, an increase from one to two sessions per week was related to an effect size higher by 0.596. Both associations were no longer significant when controlling for characteristics of studies.

LIMITATIONS

The current findings are correlational, future research should thus address this question in an RCT.

CONCLUSIONS

We should deliver brief therapies, and thus shorten waiting lists. More sessions, if necessary, should be delivered with higher frequency and over a shorter period of time.

The difference between shorter- versus longer-term psychotherapy for adult mental health disorders: a systematic review with meta-analysis

BACKGROUND

The optimal psychotherapy duration for mental health disorders is unclear. Our aim was to assess the beneficial and harmful effects of shorter- versus longer-term psychotherapy for adult mental health disorders.

METHOD

We searched relevant databases and websites for published and unpublished randomised clinical trials assessing different durations of the same psychotherapy type before June 27, 2022. Our methodology was based on Cochrane and an eight-step procedure. Primary outcomes were quality of life, serious adverse events, and symptom severity. Secondary outcomes were suicide or suicide-attempts, self-harm, and level of functioning.

RESULTS

We included 19 trials randomising 3,447 participants. All trials were at high risk of bias. Three single trials met the required information size needed to confirm or reject realistic intervention effects. One single trial showed no evidence of a difference between 6 versus 12 months dialectical behavioral therapy for borderline personality when assessing quality of life, symptom severity, and level of functioning. One single trial showed evidence of a beneficial effect of adding booster sessions to 8 and 12 weeks of internet-based cognitive behavioral therapy for depression and anxiety when assessing symptom severity and level of functioning. One single trial showed no evidence of a difference between 20 weeks versus 3 years of psychodynamic psychotherapy for mood- or anxiety disorders when assessing symptom severity and level of functioning. It was only possible to conduct two pre-planned meta-analyses. Meta-analysis showed no evidence of a difference between shorter- and longer-term cognitive behavioural therapy for anxiety disorders on anxiety symptoms at end of treatment (SMD: 0.08; 95% CI: -0.47 to 0.63; p = 0.77; I2 = 73%; four trials; very low certainty). Meta-analysis showed no evidence of a difference between shorter and longer-term psychodynamic psychotherapy for mood- and anxiety disorders on level of functioning (SMD 0.16; 95% CI -0.08 to 0.40; p = 0.20; I2 = 21%; two trials; very low certainty).

CONCLUSIONS

The evidence for shorter versus longer-term psychotherapy for adult mental health disorders is currently unclear. We only identified 19 randomised clinical trials. More trials at low risk of bias and at low risk of random errors assessing participants at different levels of psychopathological severity are urgently needed.

SYSTEMATIC REVIEW REGISTRATION

PROSPERO CRD42019128535.

Comparative clinical trials in psychotherapy: Have large effects been replicated?

AIMS

The purpose of this review is to examine the replication attempts of psychotherapy clinical trials for depression and anxiety. We focus specifically on replications of trials that exhibit large differences between psychotherapies. The replicability of these trials is especially important for meta-analysis, where the inclusion of false-positive trials can lead to erroneous conclusions about treatment efficacy.

METHODS

Standard replication criteria were developed to distinguish direct from conceptual replication methodologies. Next, an exhaustive literature search was conducted for published meta-analyses of psychotherapy comparisons. Trials that exhibited large effects (d > 0.8) were culled from these meta-analyses. For each trial, a cited replication was conducted to determine if the trial had been subsequently replicated by either 'direct' or 'conceptual' methods. Finally, a broader search was conducted to examine the extent of replication efforts in the psychotherapy literature overall.

RESULTS

In the meta-analytic search, a total of N = 10 meta-analyses met the inclusion criteria. From these meta-analyses, N = 12 distinct trials exhibited large effect sizes. The meta-analyses containing more than two large effect trials reported evidence for treatment superiority. A cited replication search yielded no direct replication attempts (N = 0) for the trials with large effects, and N = 4 conceptual replication attempts of average or above average quality. However, of these four attempts, only two partially corroborated the results from their original trial.

CONCLUSION

Meta-analytic reviews are influenced by trials with large effects, and it is not uncommon for these reviews to contain several such trials. Since we find no evidence that trials with such large effects are directly replicable, treatment superiority conclusions from these reviews are highly questionable. To enhance the quality of clinical science, the development of authoritative replication criteria for clinical trials is needed. Moreover, quality benchmarks should be considered before trials are included in a meta-analysis, or replications are attempted.

A prognostic index for long-term outcome after successful acute phase cognitive therapy and interpersonal psychotherapy for major depressive disorder

BACKGROUND

Major depressive disorder (MDD) has a highly recurrent nature. After successful treatment, it is important to identify individuals who are at risk of an unfavorable long-term course. Despite extensive research, there is no consensus yet on the clinically relevant predictors of long-term outcome in MDD, and no prediction models are implemented in clinical practice. The aim of this study was to create a prognostic index (PI) to estimate long-term depression severity after successful and high quality acute treatment for MDD.

METHODS

Data come from responders to cognitive therapy (CT) and interpersonal psychotherapy (IPT) in a randomized clinical trial (n = 85; CT = 45, IPT = 40). Primary outcome was depression severity, assessed with the Beck Depression Inventory II, measured throughout a 17-month follow-up phase. We examined 29 variables as potential predictors, using a model-based recursive partitioning method and bootstrap resampling in conjunction with backwards elimination. The selected predictors were combined into a PI. Individual PI scores were estimated using a cross-validation approach.

RESULTS

A total of three post-treatment predictors were identified: depression severity, hopelessness, and self-esteem. Cross-validated PI scores evidenced a strong correlation (r = 0.60) with follow-up depression severity.

CONCLUSION

Long-term predictions of MDD are multifactorial, involving a combination of variables that each has a small prognostic effect. If replicated and validated, the PI can be implemented to predict follow-up depression severity for each individual after acute treatment response, and to personalize long-term treatment strategies.

Towards an evidence-based unified psychodynamic protocol for emotional disorders

BACKGROUND

In psychotherapy research unified, transdiagnostic and modular treatments have emerged. This is true for both cognitive-behavioral therapy and psychodynamic therapy. Recently, two unified psychodynamic protocols were presented, one for anxiety disorders, another for depressive disorders. Integrating the treatment principles for these two highly prevalent disorder groups into one protocol for "emotional disorders" may be useful for both clinical practice and training in psychotherapy.

METHODS

After updating the evidence for psychodynamic therapy in anxiety and depressive disorders in terms of randomized controlled trials (RCTs) by a systematic search, the treatment elements applied in those RCTs providing evidence for the efficacy of psychodynamic therapy in depressive or anxiety disorders were reviewed and compared.

RESULTS

Twenty-seven RCTs for anxiety or depressive disorders were identified. A review revealed a high overlap between the principles used for the psychodynamic treatment of anxiety and depressive disorders, reflecting the transdiagnostic nature of psychodynamic therapy. The overlap suggested to integrate the identified treatment principles into one unified psychodynamic protocol for "emotional disorders" (UPP-EMO). As a result, seven treatment principles or modules were distilled which can be flexibly applied depending on the patient´s symptoms and needs. In addition, a separate module addresses diagnostic assessment. Across modules, a focus on resources has been included.

LIMITATIONS

Despite being based on RCTs, UPP-EMO has not yet been examined in an RCT - which is planned as a next step.

CONCLUSIONS

As psychodynamic therapy is transdiagnostic in origin focusing on core underlying processes of mental disorders, acceptability of UPP-EMO among psychodynamic psychotherapists is likely to be high.

Psychodynamic interpersonal therapy

The dramatic development of cognitive–behavioural therapy (CBT) over the past 30 years, with associated high-quality research into the evaluation of its treatment effects, is to be welcomed and applauded. This form of therapy is now a recognised psychological treatment of choice for a wide variety of psychological disorders. The role of cognitive processes in the development and prolongation of psychological symptoms has been studied, and resulted in the development of coherent and effective treatment models.

Are psychodynamic and psychoanalytic therapies effective? A review of empirical data

There is a need for empirical outcome research in psychodynamic and psychoanalytic therapy. However, both the approach of empirically supported therapies (EST) and the procedures of evidence-based medicine (EBM) have severe limitations making randomised controlled trials (RCTs) an absolute standard. After a critical discussion of this approach, the author reviews the empirical evidence for the efficacy of psychodynamic psychotherapy in specific psychiatric disorders. The review aims to identify for which psychiatric disorders RCTs of specific models of psychodynamic psychotherapy are available and for which they are lacking, thus providing a basis for planning further research. In addition, results of process research of psychodynamic psychotherapy are presented. As the methodology of RCTs is not appropriate for psychoanalytic therapy, effectiveness studies of psychoanalytic therapy are reviewed as well. Studies of psychodynamic psychotherapy published between 1960 and 2004 were identified by a computerised search using Medline, PsycINFO and Current Contents. In addition, textbooks and journal articles were used. Twenty-two RCTs were identified of which 64% had not been included in the 1998 report by Chambless and Hollon. According to the results, for the following psychiatric disorders at least one RCT providing evidence for the efficacy of psychodynamic psychotherapy was identified: depressive disorders (4 RCTs), anxiety disorders (1 RCT), post-traumatic stress disorder (1 RCT), somatoform disorder (4 RCTs), bulimia nervosa (3 RCTs), anorexia nervosa (2 RCTs), borderline personality disorder (2 RCTs), Cluster C personality disorder (1 RCT), and substance-related disorders (4 RCTs). According to results of process research, outcome in psychodynamic psychotherapy is related to the competent delivery of therapeutic techniques and to the development of a therapeutic alliance. With regard to psychoanalytic therapy, controlled quasi-experimental effectiveness studies provide evidence that psychoanalytic therapy is (1) more effective than no treatment or treatment as usual, and (2) more effective than shorter forms of psychodynamic therapy. Conclusions are drawn for future research.

Treatment and Prevention of Depression

Depression is one of the most common and debilitating psychiatric disorders and is a leading cause of suicide. Most people who become depressed will have multiple episodes, and some depressions are chronic. Persons with bipolar disorder will also have manic or hypomanic episodes. Given the recurrent nature of the disorder, it is important not just to treat the acute episode, but also to protect against its return and the onset of subsequent episodes.

Several types of interventions have been shown to be efficacious in treating depression. The antidepressant medications are relatively safe and work for many patients, but there is no evidence that they reduce risk of recurrence once their use is terminated. The different medication classes are roughly comparable in efficacy, although some are easier to tolerate than are others. About half of all patients will respond to a given medication, and many of those who do not will respond to some other agent or to a combination of medications. Electro-convulsive therapy is particularly effective for the most severe and resistant depressions, but raises concerns about possible deleterious effects on memory and cognition. It is rarely used until a number of different medications have been tried.

Although it is still unclear whether traditional psychodynamic approaches are effective in treating depression, interpersonal psychotherapy (IPT) has fared well in controlled comparisons with medications and other types of psychotherapies. It also appears to have a delayed effect that improves the quality of social relationships and interpersonal skills. It has been shown to reduce acute distress and to prevent relapse and recurrence so long as it is continued or maintained. Treatment combining IPT with medication retains the quick results of pharmacotherapy and the greater interpersonal breadth of IPT, as well as boosting response in patients who are otherwise more difficult to treat. The main problem is that IPT has only recently entered clinical practice and is not widely available to those in need.

Cognitive behavior therapy (CBT) also appears to be efficacious in treating depression, and recent studies suggest that it can work for even severe depressions in the hands of experienced therapists. Not only can CBT relieve acute distress, but it also appears to reduce risk for the return of symptoms as long as it is continued or maintained. Moreover, it appears to have an enduring effect that reduces risk for relapse or recurrence long after treatment is over. Combined treatment with medication and CBT appears to be as efficacious as treatment with medication alone and to retain the enduring effects of CBT. There also are indications that the same strategies used to reduce risk in psychiatric patients following successful treatment can be used to prevent the initial onset of depression in persons at risk. More purely behavioral interventions have been studied less than the cognitive therapies, but have performed well in recent trials and exhibit many of the benefits of cognitive therapy.

Mood stabilizers like lithium or the anticonvulsants form the core treatment for bipolar disorder, but there is a growing recognition that the outcomes produced by modern pharmacology are not sufficient. Both IPT and CBT show promise as adjuncts to medication with such patients. The same is true for family-focused therapy, which is designed to reduce interpersonal conflict in the family. Clearly, more needs to be done with respect to treatment of the bipolar disorders.

Good medical management of depression can be hard to find, and the empirically supported psychotherapies are still not widely practiced. As a consequence, many patients do not have access to adequate treatment. Moreover, not everyone responds to the existing interventions, and not enough is known about what to do for people who are not helped by treatment. Although great strides have been made over the past few decades, much remains to be done with respect to the treatment of depression and the bipolar disorders.

Change in self-esteem predicts depressive symptoms at follow-up after intensive multimodal psychotherapy for major depression

Reduced self-esteem is a core symptom of depression, but few studies have investigated within-treatment change of self-esteem as a predictor of long-term outcome in depression. This study investigated change in self-esteem during 8 weeks of multimodal, psychodynamically oriented psychotherapy for 40 depressed patients and tested whether it would predict outcome 6 months after termination. Data was drawn from a randomized clinical pilot trial on day-clinic versus inpatient psychotherapy for depression. Findings supported the association between change in self-esteem and follow-up depression severity, even when controlling for within-treatment symptom change. Change in self-esteem was not related to overall symptoms and interpersonal problems at follow-up. Thus, change in self-esteem may be an important variable in preventing relapse for depression.

KEY PRACTITIONER MESSAGE

Self-esteem is related to depressive symptoms and interpersonal problems. Improvement of self-esteem during psychotherapy correlates with improvements of symptoms and interpersonal problems. Change of self-esteem during psychotherapy predicts depressive symptoms 6 months after termination of therapy. When treating depressed patients, psychotherapists should work towards an improvement of self-esteem in order to prevent relapse.

Psychodynamic therapy meets evidence-based medicine: a systematic review using updated criteria

Psychodynamic therapy (PDT) is an umbrella concept for treatments that operate on an interpretive-supportive continuum and is frequently used in clinical practice. The use of any form of psychotherapy should be supported by sufficient evidence. Efficacy research has been neglected in PDT for a long time. In this review, we describe methodological requirements for proofs of efficacy and summarise the evidence for use of PDT to treat mental health disorders. After specifying the requirements for superiority, non-inferiority, and equivalence trials, we did a systematic search using the following criteria: randomised controlled trial of PDT; use of treatment manuals or manual-like guidelines; use of reliable and valid measures for diagnosis and outcome; adults treated for specific mental problems. We identified 64 randomised controlled trials that provide evidence for the efficacy of PDT in common mental health disorders. Studies sufficiently powered to test for equivalence to established treatments did not find substantial differences in efficacy. These results were corroborated by several meta-analyses that suggest PDT is as efficacious as treatments established in efficacy. More randomised controlled trials are needed for some mental health disorders such as obsessive-compulsive disorder and post-traumatic stress disorder. Furthermore, more adequately powered equivalence trials are needed.

The effectiveness of psychodynamic psychotherapies: An update

This paper provides a comprehensive review of outcome studies and meta-analyses of effectiveness studies of psychodynamic therapy (PDT) for the major categories of mental disorders. Comparisons with inactive controls (waitlist, treatment as usual and placebo) generally but by no means invariably show PDT to be effective for depression, some anxiety disorders, eating disorders and somatic disorders. There is little evidence to support its implementation for post-traumatic stress disorder, obsessive-compulsive disorder, bulimia nervosa, cocaine dependence or psychosis. The strongest current evidence base supports relatively long-term psychodynamic treatment of some personality disorders, particularly borderline personality disorder. Comparisons with active treatments rarely identify PDT as superior to control interventions and studies are generally not appropriately designed to provide tests of statistical equivalence. Studies that demonstrate inferiority of PDT to alternatives exist, but are small in number and often questionable in design. Reviews of the field appear to be subject to allegiance effects. The present review recommends abandoning the inherently conservative strategy of comparing heterogeneous "families" of therapies for heterogeneous diagnostic groups. Instead, it advocates using the opportunities provided by bioscience and computational psychiatry to creatively explore and assess the value of protocol-directed combinations of specific treatment components to address the key problems of individual patients.

Empirically supported methods of short-term psychodynamic therapy in depression - towards an evidence-based unified protocol

CONTEXT

There is evidence that psychotherapy is helpful in depressive disorders, with no significant differences between psychotherapies. For psychodynamic therapy (PDT) various models prove to be efficacious. Thus, the evidence for PDT is "scattered" between different forms of PDT, also implying problems in training of psychotherapy and in transferring research to clinical practice. A unified protocol based on empirically-supported methods of PDT in depression may contribute to solve these problems

METHODS

Systematic search for randomized controlled trials fulfilling the following criteria: (a) individual psychodynamic therapy (PDT) of depressive disorders, (b) treatment manuals or manual-like guidelines, (c) PDT proved to be efficacious compared to control conditions, (d) reliable measures for diagnosis and outcome, and (f) adult patients.

FINDINGS

Fourteen RCTs fulfilled the inclusion criteria. By a systematic review of the applied methods of PDT seven treatment components were identified. A high consistency between components was found. The components were conceptualized in the form of seven interrelated treatment modules.

CONCLUSIONS

A unified psychodynamic protocol for depression may enhance the empirical status of PDT, facilitate both the training in psychotherapy and the transfer of research to clinical practice and may have an impact on the health care system.

Psychodynamic-interpersonal therapy: an overview of the treatment approach and evidence base

This article describes the development of Psychodynamic-Interpersonal Therapy or the Conversational Model of therapy, as it is also known. It includes a brief description of the approach to therapy, a review of the evidence base, and a brief description of qualitative and psychotherapy process research that has been conducted on the model.

Trait anhedonia is associated with reduced reactivity and connectivity of mesolimbic and paralimbic reward pathways

Anhedonia is the inability to experience pleasure from normally pleasant stimuli. Although anhedonia is a prominent feature of many psychiatric disorders, trait anhedonia is also observed dimensionally in healthy individuals. Currently, the neurobiological basis of anhedonia is poorly understood because it has been mainly investigated in patients with psychiatric disorders. Thus, previous studies have not been able to adequately disentangle the neural correlates of anhedonia from other clinical symptoms. In this study, trait anhedonia was assessed in well-characterized healthy participants with no history of Axis I psychiatric illness. Functional magnetic resonance imaging with musical stimuli was used to examine brain responses and effective connectivity in relation to individual differences in anhedonia. We found that trait anhedonia was negatively correlated with pleasantness ratings of music stimuli and with activation of key brain structures involved in reward processing, including nucleus accumbens (NAc), basal forebrain and hypothalamus which are linked by the medial forebrain bundle to the ventral tegmental area (VTA). Brain regions important for processing salient emotional stimuli, including anterior insula and orbitofrontal cortex were also negatively correlated with trait anhedonia. Furthermore, effective connectivity between NAc, VTA and paralimbic areas, that regulate emotional reactivity to hedonic stimuli, was negatively correlated with trait anhedonia. Our results indicate that trait anhedonia is associated with reduced reactivity and connectivity of mesolimbic and related limbic and paralimbic systems involved in reward processing. Critically, this association can be detected even in individuals without psychiatric illness. Our findings have important implications both for understanding the neurobiological basis of anhedonia and for the treatment of anhedonia in psychiatric disorders.

Evidence for the management of adolescent depression

Adolescent depression is a prevalent and disabling condition resulting in emotional suffering and social and educational dysfunction. Care for adolescent depression is suboptimal and could be improved through the development and use of quality indicators (QIs). This article reports on the development of a care pathway and QIs for the primary and specialty care management of adolescent depression from case identification through symptom remission. It presents evidence from a review of adolescent clinical practice guidelines and research literature to support QIs at critical nodes in the pathway, and describes implications for practice based on existing evidence. Barriers to measure development are identified, including gaps in empirical evidence, and a research agenda is suggested.

How much psychotherapy is needed to treat depression? A metaregression analysis

BACKGROUND

Although psychotherapies are effective in the treatment of adult depression it is not clear how this treatment effect is related to amount, frequency and intensity of therapy.

METHODS

To fill this gap in knowledge, the present metaregression analysis examined the association between the effects of psychotherapy for adult depression and several indicators of amount, frequency and intensity of therapy. The analysis included 70 studies (92 comparisons) with 5403 patients, in which individual psychotherapy was compared with a control group (e.g. waiting list, care-as-usual).

RESULTS

There was only a small association between number of therapy sessions and effect size, and this association was no longer significant when the analysis adjusted for other characteristics of the studies. The multivariable analyses also found no significant association with the total contact time or duration of the therapy. However, there was a strong association between number of sessions per week and effect size. An increase from one to two sessions per week increased the effect size with g=0.45, while keeping the total number of treatment sessions constant.

DISCUSSION

More research is needed to establish the robustness of this finding. Based on these findings, it may be advisable to concentrate psychotherapy sessions within a brief time frame.

Can psychotherapists function as their own controls? Meta-analysis of the crossed therapist design in comparative psychotherapy trials

OBJECTIVE

Clinical trials sometimes have the same therapists deliver more than 1 psychotherapy, ostensibly to control for therapist effects. This "crossed therapist" design makes controlling for therapist allegiance imperative, as therapists may prefer one treatment they deliver to the other(s). Research has established a strong relationship between principal investigators' allegiances and treatment outcome. Study therapists' allegiances probably also influence outcome, yet this moderating factor on outcome has never been studied.

DATA SOURCES

English language abstracts in PsycINFO and MEDLINE from January 1985 to December 2011 were searched for keywords psychotherapy and randomized trial.

STUDY SELECTION

The search yielded 990 abstracts that were searched manually. Trials using the same therapists in more than 1 condition were included.

DATA EXTRACTION

Thirty-nine studies fulfilled inclusion criteria. Meta-regression analyses assessed the influence of researchers' allegiance on treatment outcome, testing the hypothesis that studies poorly controlling for therapist allegiance would show stronger influence of researcher allegiance on outcome. A single-item measure assessed researchers' reported attempts to control for therapist allegiance.

RESULTS

Only 1 of 39 studies (3%) measured therapist treatment allegiance. Another 5 (13%) mentioned controlling for, without formally assessing, therapist allegiance. Most publications (67%) did not even mention therapist allegiance. In studies not controlling for therapist allegiance, researcher allegiance strongly influenced outcome, whereas studies reporting control for therapist allegiance showed no differential researcher allegiance. Researchers with cognitive-behavioral therapy allegiance described controlling for therapist allegiance less frequently than other researchers.

CONCLUSIONS

The crossed therapist design is subject to bias due to differential psychotherapist allegiance. Worrisome results suggest that researchers strongly allied to a treatment may ignore therapist allegiance, potentially skewing outcomes. All clinical trials, and especially crossed therapist designs, should measure psychotherapist allegiance to evaluate this possible bias.

[The efficacy of psychodynamic therapy: a controversy]

There is growing evidence from randomized controlled trials supporting the efficacy of psychodynamic psychotherapy (PDT) in specific mental disorders. Yet the evidence for the efficacy of psychodynamic psychotherapy has not gone unchallenged. Several responses have addressed these concerns, showing that most of the criticism was not justified. Nevertheless, the evidence for psychodynamic psychotherapy continues to be frequently ignored, criticized or presented in a distorted way. A recent controversy published in the Nervenarzt may serve as an illustrative example, which is discussed here more in detail. This example shows that some authors are not interested in a truly scientific discussion, but rather try to discredit a rival method of psychotherapy and its scientific representatives for political reasons.

Delivering group psychoeducational CBT in Primary Care: Comparing outcomes with individual CBT and individual psychodynamic-interpersonal psychotherapy

Within psychological services in Primary Care, service providers are expected and required to deliver clinical services that are prompt, safe and effective. However, long wait-times for treatment are common, with attendant clinical chronicity and risk issues. Evaluations of group-based treatments in Primary Care, which are clinically more efficient than individual treatments, are extremely scarce. The current evaluation attempted to appraise the effectiveness of a service innovation of introducing group-based psychoeducational cognitive-behaviour therapy (CBT; N=43), by comparing outcomes with clients treated in individual CBT (N=68) and individual psychodynamic-interpersonal psychotherapy (N=65). Group psychoeducational participants completed validated scales of psychological functioning (Beck Depression Inventory - 2, BDI-2; Brief Symptom Inventory, BSI; Inventory of Interpersonal Problems, IIP-32; and General Health Questionnaire, GHQ-12) at assessment, start of group, termination of group and 3-month follow-up, whereas participants in the individual therapies completed measures only at initiation and termination of treatment. The results indicate broad similarities between the outcomes achieved by the three services, with rates of clinically significant improvements and deteriorations comparable in the main across services. The results are discussed in terms of identified methodological limitations, service implications and models of service delivery for the psychological therapies in Primary Care.

Evaluation of psychodynamic psychotherapy in a community mental health center

This study describes an evaluation of the effectiveness of psychodynamic psychotherapy provided in an outpatient community mental health clinic. The study used a single group pretest-posttest design involving 78 clients. Clinical outcomes included overall psychosocial functioning and quality of life, level of subjective distress, interpersonal functioning and role functioning, measured by the Outcome Questionnaire (Lambert, Hansen, Umpress, Lunnen Okilshi, & Burlingame, 2000). Clients showed statistically significant improvement from pretest (first sessions) to completion of treatment in overall functioning, and quality of life, level of subjective distress, interpersonal functioning and role functioning. Eighty-five percent of clients made statistically and clinically significant change. Calculation of effect sizes for each outcome found moderate to strong change effects ranging from d = .4 to .9. The study illustrates a method of intervention research that therapists and agencies can use to integrate practical evaluation methods into their clinical services in order to improve mental health service to clients, to demonstrate the effectiveness of interventions, and to provide data to support coverage for needed services for clients.

Family-based treatment for adolescent substance abuse: controlled trials and new horizons in services research

This article provides an overview of controlled trials research on treatment processes and outcomes in family-based approaches for adolescent substance abuse. Outcome research on engagement and retention in therapy, clinical impacts in multiple domains of adolescent and family functioning, and durability and moderators of treatment effects is reviewed. Treatment process research on therapeutic alliance, treatment fidelity and core family therapy techniques, and change in family processes is described. Several important research issues are presented for the next generation of family-based treatment studies focusing on delivery of evidence-based treatments in routine practice settings.

Evaluating a cognitive analytic therapy service; practice-based outcomes and comparisons with person-centred and cognitive-behavioural therapies

OBJECTIVES

Evaluations of the clinical effectiveness of cognitive analytic therapy (CAT) are scarce and therefore represent an urgent service and research need. This paper sought to evaluate a CAT service by profiling CAT clients, examining the outcomes achieved by the CAT service and also comparing such outcomes with those achieved by other services, namely the person-centred service and the cognitive-behavioural service.

DESIGN

Patients in routine practice were matched according to the amount of therapy time received (either brief or medium-term contracts) and the degree of initial presenting psychological distress.

METHODS

Patients completed a variety of validated scales of psychological functioning (Beck Depression Inventory-II (BDI-II), Brief Symptom Inventory (BSI), and Inventory of Interpersonal Problems (IIP-32)) at assessment and termination of psychological intervention.

RESULTS

The results indicate broad similarities between the outcomes achieved by the services, with rates of clinically significant improvement comparable, in the main, across the three services.

CONCLUSIONS

The results are discussed in terms of (a) the service delivery implications and (b) future indicated pragmatic research and evaluation efforts.

Estimating dose-response effects in psychological treatment trials: the role of instrumental variables

We present a relatively non-technical and practically orientated review of statistical methods that can be used to estimate dose-response relationships in randomised controlled psychotherapy trials in which participants fail to attend all of the planned sessions of therapy. Here we are investigating the effects on treatment outcome of the number of sessions attended when the latter is possibly subject to hidden selection effects (hidden confounding). The aim is to estimate the parameters of a structural mean model (SMM) using randomisation, and possibly randomisation by covariate interactions, as instrumental variables. We describe, compare and illustrate the equivalence of the use of a simple G-estimation algorithm and two two-stage least squares procedures that are traditionally used in economics.

Short-term psychodynamic psychotherapy: review of recent process and outcome studies

Short-term psychodynamic psychotherapy (STPP) is a widely practised form of psychological intervention. Given that the Roth and Fonagy (1996) review concluded that there was a lack of confirming evidence for STPP, the current review is focused on studies published between 1996 and 2006 that evaluate the efficacy of STPP. As a result of a systematic literature review, 18 studies were found that met inclusion criteria consistent with those used by Roth and Fonagy (1996) for selection of studies, patient groupings and definition of therapeutic method. In general these studies add to an increasing body of evidence suggesting that STPP can be an effective psychological treatment for individuals experiencing mental health problems. Specifically, for depression STPP can be equal in effects to other psychological treatments and is significantly better than no treatment in the short term. Furthermore, emerging process data indicate that there is a significant relationship between the use of specific psychodynamic therapeutic techniques and the alleviation of depressive symptoms. Increasing evidence has emerged to support STPP as a treatment for generalized anxiety disorder, panic disorder and some personality disorders. There remains limited evidence for the use of STPP treatment for patients with anxiety disorders that relate more to stress. Very limited and inconclusive evidence currently exists to support STPP as a treatment for bipolar disorder, eating disorders and drug dependency. Future research needs to include broader assessment measures, long-term follow up, studies that maintain an identifiable focus, and research that includes a focus on psychotherapy process variables as they interact with outcomes.

Effectiveness of cognitive-behavioural, person-centred, and psychodynamic therapies in UK primary-care routine practice: replication in a larger sample

BACKGROUND

Psychotherapy's equivalence paradox is that treatments tend to have equivalently positive outcomes despite non-equivalent theories and techniques. We replicated an earlier comparison of treatment approaches in a sample four times larger and restricted to primary-care mental health.

METHOD

Patients (n=5613) who received cognitive-behavioural therapy (CBT), person-centred therapy (PCT) or psychodynamic therapy (PDT) at one of 32 NHS primary-care services during a 3-year period (2002-2005) completed the Clinical Outcomes in Routine Evaluation - Outcome Measure (CORE-OM) at the beginning and end of treatment. Therapists indicated which approaches were used on an End of Therapy form. We compared outcomes of groups treated with CBT (n=1045), PCT (n=1709), or PDT (n=261) only or with one of these plus one additional approach (e.g. integrative, supportive, art), designated CBT+1 (n=1035), PCT+1 (n=1033), or PDT+1 (n=530), respectively.

RESULTS

All six groups began treatment with equivalent CORE-OM scores, and all averaged marked improvement (overall pre/post effect size=1.39). Neither treatment approach nor degree of purity ('only' v. '+1') had a statistically significant effect. Distributions of change scores were all similar.

CONCLUSIONS

Replicating the earlier results, the theoretically different approaches tended to have equivalent outcomes. Caution is warranted because of limited treatment specification, non-random assignment, incomplete data, and other issues. Insofar as these routine treatments appear effective for patients who complete them, those who fail to complete (or to begin) treatment deserve attention by researchers and policymakers.

Does adding psychotherapy to pharmacotherapy improve social functioning in the treatment of outpatient depression?

The existence of an overall association between severity of depression and level of social functioning is well documented. To increase the probability of a long-term recovery, a normal level of social functioning is essential. It is currently unknown whether combined therapy has a better outcome than pharmacotherapy with regard to social functioning. In a 6-month randomized clinical trial in outpatients with major depression, all patients studied had a baseline score of at least 14 points on the 17-item Hamilton Depression Rating Scale (HDRS). The two conditions consist of pharmacotherapy (PhT) (N=84) and combined therapy (CoT), pharmacotherapy plus 16 sessions of short psychodynamic supportive psychotherapy (N=83). Efficacy was assessed using the 17-item HDRS, the Clinical Global Impression (CGI) Severity and Improvement scales, the Depression subscale of the Symptom Checklist-90 (SCL-90), the Quality of Life Depression Scale (QLDS), more the Groningen Social Disability Schedule (GSDS). Severity of depression decreased significantly (on the SCL-90 Depression subscale and the QLDS) more in the CoT condition. A larger improvement in social functioning was demonstrated for remitted patients than for nonremitted patients. The number of dimensions of social functioning that had improved significantly was higher in CoT than in PhT. There was a moderate advantage of the CoT condition on both depressive symptoms and level of social functioning in comparison with PhT. We also found a positive association between depression severity and level of social functioning.

Psychodynamic psychotherapy: a systematic review of techniques, indications and empirical evidence

PURPOSE

Psychodynamic psychotherapy is one of the most frequently applied methods of psychotherapy in clinical practice. However, it is the subject of controversial discussion, especially with regard to empirical evidence. In this article we aim to give an up-to-date description of the treatment and to review the available empirical evidence. Evidence is reviewed for both efficacy and mechanisms of change of short- and moderate-term psychodynamic psychotherapy. Furthermore, results of effectiveness studies of long-term psychoanalytic therapy are reviewed.

METHODS

With regard to efficacy, a protocol for a Cochrane review for (short-term) psychodynamic psychotherapy is available specifying inclusion criteria for efficacy studies.

RESULTS

Twenty-three randomized controlled trials of manual-guided psychodynamic psychotherapy applied in specific psychiatric disorders provided evidence that psychodynamic psychotherapy is superior to control conditions (treatment-as-usual or wait list) and, on the whole, as effective as already established treatments (e.g. cognitive-behavioural therapy) in specific psychiatric disorders. With regard to process research, central assumptions of psychodynamic psychotherapy were confirmed by empirical studies.

CONCLUSIONS

Further research should include both efficacy studies (on specific forms of psychodynamic psychotherapy in specific mental disorders) and effectiveness studies complementing the results from experimental research settings. Future process research should address the complex interactions among interventions, patient's level of functioning, helping alliance and outcome.

Psychodynamic psychotherapies: Evidence-based practice and clinical wisdom

This article is based on an exhaustive review of the psychotherapy outcomes literature, undertaken originally at the instigation of the UK Department of Health by Roth and Fonagy (Department of Health, 1995). We have recently updated this review (Fonagy, Target, Cottrell, Phillips, & Kurtz, 2002; Roth & Fonagy, 2004) and extended it to identify all studies of psychoanalytic psychotherapy. The usual methods for identifying studies were employed (Fonagy, Target, et al., 2002; Roth & Fonagy, in press). The key questions that should be asked of this literature given the current state of research in this area (also see Westen, Morrison, & Thompson-Brenner, 2004) are: Are there any disorders for which short-term psychodynamic psychotherapy (STPP) can be considered evidence-based, Are there any disorders for which STPP is uniquely effective as either the only evidence-based treatment or as a treatment that is more effective than alternatives, and Is there any evidence base for long-term psychodynamic psychotherapy (LTPP) either in terms of achieving effects not normally associated with short-term treatment or addressing problems that have not been addressed by STPP? In this context, short-term therapy is conceived of as a treatment of around 20 sessions delivered usually once weekly.