A systematic review of the quality of randomized controlled trials of psychological treatments for emotional distress in breast cancer

For whom and what outcomes does cognitive-behavioral-therapy work among cancer survivors: a systematic review and meta-analysis

OBJECTIVE

To perform a systematic review and meta-analysis of CBT for individuals diagnosed with cancer across a broad range of outcome domains, i.e., functional health, psychological health, health behaviors, social relational, and general wellness.

METHODS

A comprehensive search of 7 databases, 91 published reviews, and 4 professional websites was performed on August 30th, 2021. English-language clinical trials of CBT for cancer patients/survivors were included. Studies were independently screened, and data were extracted by 2 reviewers, and discrepancies were resolved by consensus among the investigative team. A total of 151 clinical trials (154 articles) published between 1986 and 2021 were included in the analysis.

RESULTS

CBT was overall effective for cancer patients/survivors in the domains of functional health, g = 0.931, p < 0.001, psychological health, g = 0.379, p < 0.001, and general wellness, g = 0.257, p < 0.001, but ineffective in domains of health behaviors, g = 0.792, p > 0.05, and social relational outcomes, g = 0.319, p > 0.05. Additional subgroup and moderator analyses further revealed CBT's differential treatment effect for different within domain outcomes, across different cancer disease stages, and CBT delivery format.

CONCLUSIONS

Findings of the study showed that CBT is an effective treatment for individuals diagnosed with cancer. However, treatment effects differ by important disease- and intervention-related factors, which should be considered when recommending CBT for cancer patients/survivors.

People with obsessive-compulsive disorder often remain symptomatic following psychological treatment: A clinical significance analysis of manualised psychological interventions

BACKGROUND

Previous meta-analyses conclude that efficacious psychological treatments for obsessive-compulsive disorder (OCD) exist. However, determining the efficacy of psychological treatments requires multiple forms of assessment. We conducted an individual patient data meta-analysis of randomised controlled trials (RCTs) of manualised psychological therapy for adults with OCD.

METHODS

Four electronic databases were searched from their inception until July 2019. IPD were available for 24 (n = 1626) of 43 (n = 2455) eligible RCTs. Treatment efficacy was evaluated using clinical significance analyses (using standardised Jacobson methodology) and standardised mean difference within-group effect-size analyses. Outcomes were Yale-Brown Obsessive Compulsive Scale (Y-BOCS) scores at post-treatment and follow-up.

RESULTS

At follow-up, large within-group effect sizes were found for treated patients (g = 1.45) and controls (g = 0.90). Treated patients were significantly more likely than controls to recover, but recovery rates were low; post-intervention, only 32% of treated patients and 3% of controls recovered; rising to 38% and 21% respectively at follow-up. Regardless of allocation, only 20% of patients were asymptomatic at follow-up. Individual cognitive therapy (CT) was most efficacious, followed by group CT plus exposure and response prevention. Self-help interventions were generally less efficacious than face-to-face approaches.

LIMITATIONS

Data were analysed from 24 of the 43 eligible RCTs. We were unable to consider the long-term efficacy of treatments because only two RCTs provided long-term (> 12 month) follow-up data.

CONCLUSION

Almost 80% of treated patients remain symptomatic. The efficacy of psychological interventions for patients with OCD must be enhanced.

The questionable efficacy of manualized psychological treatments for distressed breast cancer patients: An individual patient data meta-analysis

Previous meta-analyses conclude that psychological treatments are efficacious for emotional distress in breast cancer (BCa). However, the practical relevance of these meta-analyses is questionable; none focused specifically on clinically distressed patients or whether treatment effects were clinically significant. In a two-stage individual patient data (IPD) meta-analysis of 17 randomized controlled trials of manualized psychological treatments in BCa, we evaluated treatment efficacy in distressed BCa patients (n = 1591) using clinical significance and effect size analyses. Outcomes were anxiety, depression, and general distress, evaluated at post-treatment and follow-up. Moderators examined were treatment type, treatment format, therapists' profession, control condition, age, outcome measure, and trial quality. Treated patients were more likely than controls to recover from anxiety and general distress at post-treatment (14-15% more treated patients recovered), but not at mean 8-months follow-up. Overall recovery rates were low: across outcomes, at post-treatment, only 30-32% of treated patients and 15-25% of controls recovered; at follow-up, only 21-30% of treated patients and 18-35% of controls recovered. Small between-group effect sizes in favour of treatment were found across outcomes at post-treatment (g = 0.32-0.34) but not at follow-up. Across the different analysis methods, few moderator effects were found. More efficacious psychological treatments are needed for distressed BCa patients.

The Needs Self-Rating Questionnaire for Breast Cancer (NSQ-BC): Development of a tool for the needs assessment of women with breast cancer in mainland China

RATIONALE, AIMS, AND OBJECTIVES

A needs assessment tool considering the cultural background of mainland China has not been reported. This study developed a Needs Self-rating Questionnaire for Breast Cancer (NSQ-BC) based on Maslow's hierarchy of needs for mainland Chinese patients.

METHODS

The Delphi technique and pilot cross-sectional surveys (two rounds) were performed for item selection. In the Delphi technique, items were selected according to the experts' perspective on the item's significance (ie, 1-5 Likert-scale ratings of importance; mean > 4.0 and coefficients of variation <0.25). In the pilot cross-sectional surveys, items were selected according to internal consistency reliability (Cronbach's α ≥ 0.70), discriminant validity (stronger correlations of the item with the hypothesized subscale than for other subscales), and convergent validity (hypothesized item-subscale correlations ≥0.40). All decisions were made based on the results of statistical analyses, recommendations of the experts, and in-depth discussion among research team members.

RESULTS

Following the two evaluation rounds, the revised NSQ-BC comprised 26 items across five subscales of needs: physical, psychological, respect/self-esteem, information, and rehabilitation. Item ratings from the expert panellists met the aforementioned criteria (ie, Kendall's W = 0.329, P < 0.001). Except for the "respect/self-esteem needs" subscale, Cronbach's α for all subscales exceeded 0.70. All items had acceptable discriminant and convergent validity. Additionally, two new items-good environment/facilities and economic support-were added to the NSQ-BC, as recommended by the experts.

CONCLUSIONS

The NSQ-BC was developed fully via the comprehensive use of Delphi technique and pilot cross-sectional surveys. It provides evidence of a proper instrument for needs assessment and evaluation among women with breast cancer in mainland China.

Qualitative Evaluation of Cancer Survivors' Experiences of Metacognitive Therapy: A New Perspective on Psychotherapy in Cancer Care

Background

Preliminary evidence suggests that metacognitive therapy (MCT), a brief, process-focused psychological intervention, alleviates distress in cancer survivors. In a longitudinal qualitative study nested in an open trial of MCT for cancer survivors, we explored how patients understood, experienced and applied MCT.

Methods

Patients received six MCT sessions. Consenting patients provided semi-structured interviews post-intervention (n = 19), and at 3- and 6-months follow-up (n = 14 and 10 respectively). Interviews were audio-recorded and transcribed. Analysis followed a constant comparison approach.

Results

Participants felt “overwhelmed” by worry before starting MCT and doubted that such brief therapy could help. Their accounts focused on feeling “challenged” to think differently by the psychologist. Those completing therapy were enthusiastic about it. They described having learned that thoughts are “only thoughts,” that feelings of worry or sadness are a normal part of life, and that they were in control of whether and how they engaged with thoughts. Consequently, most described a sense of freedom to live free from worry. A minority described being unable to apply MCT to certain thoughts. Two patients who withdrew before completing MCT did not describe having learned what MCT was intended to achieve.

Conclusion

MCT is an acceptable brief intervention for distressed cancer survivors. Feeling challenged to understand the processes maintaining their distress was central to their enthusiasm for it, irrespective of their presenting difficulties.

Implications for Cancer Survivors

The complexity of emotional distress in cancer survivors can potentially be addressed using a transdiagnostic model which focuses on the psychological processes which maintain distress.

The efficacy of interventions for test-anxious university students: A meta-analysis of randomized controlled trials

Test anxiety (TA) is highly distressing and can significantly undermine academic performance. Many randomized controlled trials (RCTs) of interventions for university students with TA have been conducted, but there has been no systematic review of their efficacy. This meta-analysis examines the efficacy of interventions for test-anxious university students in: (i) reducing TA, and (ii) improving academic performance. We searched for RCTs published in English language peer-reviewed journals. Forty-four RCTs met our eligibility criteria (n = 2,209). Interventions were superior to control conditions at post-treatment for reducing TA (g = -0.76) and improving academic performance (g = 0.37). Interventions were superior to control conditions at follow-up. Subgroups analyses found most support for behaviour therapy. Cognitive-behavioural therapy, study skills training, and combined psychological and study skills training interventions show promise but lack evidence for their longer-term efficacy, and results are based upon a small number of studies. Evidence of publication bias was found and poor quality of reporting meant that confidence in results should be moderated. Future RCTs should be conducted and reported with greater rigour, have larger samples, and examine newer interventions.