Is internet-based CBT for panic disorder and agoraphobia as effective as face-to-face CBT?

Computer-aided psychological treatments: evolving issues

Evidence is growing that several computer-aided psychotherapy (CP) systems can effectively improve a range of common mental health problems. Most clients find CP acceptable because of its convenience, confidentiality, and reduction of stigma. CP can be accessed in a clinic, but recently clients have used CP especially on the Internet at home, with brief support on a telephone helpline and/or by email. Brief and efficient screening and support greatly reduce attrition. CP's efficacy, and encouragement of its dissemination and implementation by some national funding bodies and governmental agencies, has led to its spread as a regular care option and is increasing access to psychological therapies in some countries. Transfer of this new approach from use in tight research studies to use as an integrated part of everyday care under widely varying conditions generates teething problems that are being managed in diverse ways across different centers. Anonymized Internet audit of CP outcomes facilitates effective care and clinical governance. This review examines the current state of the art as well as the science and broad applications of CP.

Changes in quality of life following cognitive-behavioral group therapy for panic disorder

BACKGROUND

Data about quality of life (QoL) are important to estimate the impact of diseases on functioning and well-being. The present study was designed to assess the association of different aspects of panic disorder (PD) with QoL and to examine the relationship between QoL and symptomatic outcome following brief cognitive-behavioral group therapy (CBGT).

METHOD

The sample consisted of 55 consecutively recruited outpatients suffering from PD who underwent CBGT. QoL was assessed by the Medical Outcomes Study 36-item Short-Form Health Survey (SF-36) at baseline, post-treatment and six months follow-up. SF-36 baseline scores were compared with normative data obtained from a large German population sample.

RESULTS

Agoraphobia, disability, and worries about health were significantly associated with decreased QoL, whereas frequency, severity and duration of panic attacks were not. Treatment responders showed significantly better QoL than non-responders. PD symptom reduction following CBGT was associated with considerable improvement in emotional and physical aspects of QoL. However, the vitality subscale of the SF-36 remained largely unchanged over time.

CONCLUSIONS

Our results are encouraging for cognitive-behavior therapists who treat patients suffering from PD in groups, since decrease of PD symptoms appears to be associated with considerable improvements in QoL. Nevertheless, additional interventions designed to target specific aspects of QoL, in particular vitality, may be useful to enhance patients' well-being.

Clinician-assisted Internet-based treatment is effective for depression: randomized controlled trial

OBJECTIVE

The aim of the present study was to determine the efficacy of an Internet-based clinician-assisted computerized cognitive behavioural treatment (CaCCBT) programme for depression.

METHOD

Forty-five individuals meeting diagnostic criteria for depression were randomly assigned to the Sadness programme or to a waitlist control group. In the clinician-assisted Sadness programme, participants complete six online lessons, weekly homework assignments, receive weekly email contact from a clinical psychologist, and contribute to a moderated online discussion forum with other participants. An intention-to-treat model was used for data analyses.

RESULTS

A total of 20 (74%) treatment group participants completed all lessons within the 8 week programme, and post-treatment data were collected from 18/27 treatment group and 17/18 waitlist group participants. Treatment group participants reported significantly reduced symptoms of depression as measured by the Beck Depression Inventory-second edition and the Patient Health Questionnaire-Nine Item. Treatment group participants each received an average of eight email contacts (111 min of therapist time]. Mean within- and between-group effect sizes (Cohen's d) across the two measures of depressive symptoms were 0.98 and 0.75, respectively. Participants found the treatment programme acceptable and satisfactory.

CONCLUSIONS

These results replicate those from the pilot trial reported by Perini et al. and are consistent with literature indicating that Internet-based programmes for depression and other mental disorders combined with clinical guidance can result in clinically significant improvements. These data provide further support for the development of Internet-based treatment for common mental disorders.

Using the Internet to provide cognitive behaviour therapy

A new treatment form has emerged that merges cognitive behaviour therapy with the Internet. By delivering treatment components, mainly in the form of texts presented via web pages, and provide ongoing support using e-mail promising outcomes can be achieved. The literature on this novel form of treatment has grown rapidly over recent years with several controlled trials in the field of anxiety disorders, mood disorders and behavioural medicine. For some of the conditions for which Internet-delivered CBT has been tested, independent replications have shown large effect sizes, for example in the treatment of social anxiety disorder. In some studies, Internet-delivered treatment can achieve similar outcomes as in face-to-face CBT, but the literature thus far is restricted mainly to efficacy trials. This article provides a brief summary of the evidence, comments on the role of the therapist and for which patient and therapist this is suitable. Areas of future research and exploration are identified.

Transtorno do pânico

OBJETIVOS: Revisar o transtorno do pânico (TP), considerando seus aspectos clínicos, epidemiológicos, diagnósticos e etiológicos, bem como os avanços no tratamento, uma vez que o TP é uma entidade nosológica acompanhada de importante prejuízo psíquico e funcional. MÉTODO: Foi realizada uma revisão narrativa da literatura nas principais bases de dados existentes (MEDLINE, PsychINFO e SciELO) e em livros-textos atualizados. RESULTADOS: Devido à sintomatologia predominantemente física desse transtorno, os pacientes geralmente procuram vários atendimentos clínicos até que o diagnóstico seja feito. Em função desses aspectos e da sua cronicidade, o TP está associado a elevados custos econômicos. O tratamento do TP pode ser feito com psicoterapia e/ou psicofármacos. As diversas abordagens terapêuticas são apresentadas com o nível de evidência de cada recomendação. Em virtude da cronicidade e morbidade do TP, pesquisas têm se voltado para o estudo de estratégias de prevenção já na infância. CONCLUSÕES: O TP é um transtorno crônico e com baixas taxas de remissão dos sintomas em longo prazo. Sendo assim, sugere-se que sejam delineados novos estudos para tratamento precoce dos transtornos de ansiedade ou mesmo para prevenção em crianças de risco.

Shyness programme: longer term benefits, cost-effectiveness, and acceptability

OBJECTIVE

In two randomized controlled trials Titov et al. demonstrated significant benefit from an Internet- and email-based treatment programme for social phobia: the Shyness programme. Data are presented about the longer term outcomes (6 months after treatment), cost-effectiveness relative to face-to-face treatment, and the acceptability of the programme to participants.

METHOD

Participants completed outcome and acceptability questionnaires at 6 months after treatment. Repeated measures analyses of variance were calculated using an intention-to-treat design. Cost-effectiveness in years lived with disability averted were calculated based on between-group effect sizes.

RESULTS

A total of 59% of treatment group participants completed the 6 month follow-up questionnaires. Between post-treatment and 6 month follow up participants continued to make improvements in symptoms of social phobia, while maintaining improvements in mood, psychological distress, and disability. At 6 month follow up the mean within-group effect size (Cohen's d) for the two social phobia measures increased from 1.2 to 1.4. Cost-effectiveness in years lived with disability (YLD) averted was calculated as one-quarter that of face-to-face group treatment, or $AUD1495 for one YLD gained, compared to $AUD5686/YLD gained. Participants rated the Internet treatment to be as effective and helpful as face-to-face treatment.

CONCLUSIONS

The present results confirm the reliability of the short-term findings reported in the first two Shyness programmes. The procedure appears to be very cost-effective, and acceptable to participants. These data provide further support for the development of Internet-based virtual clinics for common mental disorders.

Clinician-Assisted Internet-Based Treatment is Effective for Generalized Anxiety Disorder: Randomized Controlled Trial

Objective: The aim of the present study was to determine the efficacy of an Internet-based clinician-assisted computerized cognitive behavioural treatment (CaCCBT) programme for generalized anxiety disorder (the Worry programme).

Methods: Forty-eight individuals meeting diagnostic criteria for generalized anxiety disorder (GAD) were randomly assigned to the Worry programme or to a waitlist control group. In the clinician-assisted Worry programme, participants complete six online lessons, weekly homework assignments, receive weekly email contact from a clinical psychologist, and contribute to a moderated online discussion forum with other participants. An intention-to-treat model was used for data analyses. The main outcome measures were Generalized Anxiety Disorder–7 Item Scale (GAD-7) and the Penn State Worry Questionnaire (PSWQ).

Results: A total of 75% of treatment group participants completed all six lessons within the 9 week programme and post-treatment data were collected from 21/24 treatment group and 19/21 control group participants. Treatment group participants reported significantly reduced symptoms of worry as measured on the GAD-7 and PSWQ and reduced symptoms of depression as measured on the Patient Health Questionnaire–9 Item Scale (PHQ-9). Mean within- and between-groups effect sizes (Cohen's d) across the two measures of GAD were 1.3 and 1.1, respectively. Participants found the treatment programme acceptable and satisfactory. The clinician spent a total mean of 130 min per person over the programme.

Conclusions: The Worry programme, the first randomized controlled trial of CaCCBT for GAD, resulted in clinically significant improvements. These results are consistent with literature indicating that Internet-based programmes, when combined with clinical guidance, can significantly reduce the symptoms of common mental disorders.

An RCT Comparing Effect of Two Types of Support on Severity of Symptoms for People Completing Internet-Based Cognitive Behaviour Therapy for Social Phobia

Objective: The present study (Shyness 6) compares the benefits and acceptability of two types of guidance on severity of symptoms during Internet treatment for social phobia.

Methods: Non-inferiority randomized controlled trial of Internet treatment, supplemented with weekly telephone calls from a technician (computerized cognitive-behavioural treatment (CCBT + Tel), or regular access to a clinician-moderated online discussion forum (CCBT + Forum), was carried out. An intention-to-treat model was used for data analyses. The participants consisted of 82 volunteers with social phobia. The intervention consisted of six lessons of CCBT for social phobia (the Shyness programme) with complex automated reminders. The main outcome measures were the Social Interaction Anxiety Scale and Social Phobia Scale.

Results: A total of 79% of CCBT + Tel and 79% of CCBT + Forum group participants completed all six lessons. Large mean within-groups effect sizes (Cohen's d) for the two social phobia measures were found for the CCBT + Tel and CCBT + Forum groups (1.31 and 1.54, respectively). Each participant in the CCBT + Tel group received a mean total of 38 min of technician time over the 8 week programme, while participants in the CCBT + Forum group received a mean total of 37 min of clinician time. Quantitative and qualitative data indicate that both the CCBT + Tel and CCBT + Forum procedures were equally and highly acceptable to participants.

Conclusions: The Shyness programme with either telephone support or access to a clinician-moderated online forum resulted in good clinical outcomes with equivalent patient acceptability. These results confirm that people with social phobia may significantly benefit from a highly structured education programme administered by clinical or non-clinical staff.

Shyness 3: randomized controlled trial of guided versus unguided Internet-based CBT for social phobia

OBJECTIVE

In two previous randomized controlled trials Titov et al. demonstrated significant benefit from an Internet- and email-based treatment programme for social phobia. The present study (Shyness 3) explores whether participants are able to complete this programme independently.

METHOD

A total of 98 individuals with social phobia were randomly assigned to a clinician-assisted computerized cognitive behavioural treatment (CaCCBT) group, a self-guided computerized CBT (CCBT) group, or to a waitlist control group. CaCCBT group participants completed the usual Shyness programme consisting of six online lessons, cognitive behavioural homework assignments, email contact with a therapist, and participation in an online discussion forum. CCBT group participants accessed the same resources except for therapist emails. An intention-to-treat model was used for data analyses.

RESULTS

A total of 77% of CaCCBT and 33% of CCBT group participants completed all lessons. Significant differences were found after treatment between CaCCBT and control groups (mean between-groups effect size (ES) for the social phobia measures=1.04), and between the CaCCBT and CCBT groups (mean between-groups ES for the social phobia measures=0.66). No significant differences were found after treatment between the CCBT and control groups (mean between-groups ES for the social phobia measures=0.38). CCBT participants, however, who completed the six lessons made good progress (mean within-group ES for the social phobia measures=0.62). Quantitative and qualitative data indicate that both the CaCCBT and CCBT procedures were acceptable to participants.

CONCLUSIONS

The reliability of this Internet-based treatment programme for social phobia has been confirmed. The therapist-guided condition was superior to the self-guided condition, but a subgroup of participants still benefited considerably from the latter. These data confirm that self-guided education or treatment programmes for common anxiety disorders can result in significant improvements.