Efficacy of Internet-Delivered Acceptance and Commitment Therapy for Severe Health Anxiety: Results from a Randomized, Controlled Trial

2019 ◽  
Author(s):  
Ditte Hoffmann ◽  
Charlotte Ulrikka Rask ◽  
Erik Hedman-Lagerlöf ◽  
Jens Søndergaard Jensen ◽  
Lisbeth Frostholm
Keyword(s):  
Randomized Controlled Trial ◽  
Acceptance And Commitment Therapy ◽  
Controlled Trial ◽  
Health Anxiety ◽  
Randomized Controlled ◽  
Commitment Therapy ◽  
Acceptance And Commitment

scholarly journals Efficacy of internet-delivered acceptance and commitment therapy for severe health anxiety: results from a randomized, controlled trial

2020 ◽  
pp. 1-11
Author(s):  
Ditte Hoffmann ◽  
Charlotte Ulrikka Rask ◽  
Erik Hedman-Lagerlöf ◽  
Jens Søndergaard Jensen ◽  
Lisbeth Frostholm
Keyword(s):  
Randomized Controlled Trial ◽  
Acceptance And Commitment Therapy ◽  
Controlled Trial ◽  
Health Anxiety ◽  
Hospital Setting ◽  
University Hospital ◽  
Number Needed To Treat ◽  
Randomized Controlled ◽  
Commitment Therapy ◽  
Acceptance And Commitment

Abstract Background Health anxiety is common, disabling and costly due to patients’ extensive use of health care services. Internet-delivered treatment may overcome barriers of accessibility to specialized treatment. We aimed to evaluate the efficacy of internet-delivered acceptance and commitment therapy (iACT). Methods A randomized, controlled trial of iACT versus an internet-delivered discussion forum (iFORUM), performed in a Danish university hospital setting. Patients self-referred and underwent video-diagnostic assessment. Eligible patients (≥18 years) with health anxiety were randomized to 12 weeks of intervention. The randomization was blinded for the assessor. The primary outcome was between-group unadjusted mean differences in health anxiety symptoms measured by the Whiteley-7 Index (WI-7, range 0–100) from baseline to 6-month follow-up (6-MFU) using intention to treat and a linear mixed model. The study is registered at clinicaltrials.gov, number NCT02735434. Results A total of 151 patients self-referred, and 101 patients were randomized to iACT (n = 53) or iFORUM (n = 48). A mean difference in change over time of 19.0 points [95% confidence interval (CI) 10.8–27.2, p < 0.001] was shown on the WI-7, and a large standardized effect size of d = 0.80 (95% CI 0.38–1.23) at 6-MFU. The number needed to treat was 2.8 (95% CI 1.8–6.1, p < 0.001), and twice as many patients in iACT were no longer clinical cases (35% v. 16%; risk ratio 2.17, 95% CI 1.00–4.70, p = 0.050). Adverse events were few and insignificant. Conclusions iACT for health anxiety led to sustained effects at 6-MFU. The study contributes to the development of easily accessible treatment options and deserves wider application.

scholarly journals The ACTyourCHANGE study protocol: promoting a healthy lifestyle in patients with obesity with Acceptance and Commitment Therapy—a randomized controlled trial

Trials ◽  
2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Anna Guerrini Usubini ◽  
Roberto Cattivelli ◽  
Emanuele Maria Giusti ◽  
Francesco Vailati Riboni ◽  
Giorgia Varallo ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Acceptance And Commitment Therapy ◽  
Mechanism Of Action ◽  
Healthy Lifestyle ◽  
Controlled Trial ◽  
Psychological Flexibility ◽  
Randomized Controlled ◽  
Link Type ◽  
Commitment Therapy ◽  
Acceptance And Commitment

Abstract Background As treatment of choice in promoting psychological flexibility, Acceptance and Commitment Therapy (ACT) was found to be effective in several conditions, and among different populations, including weight management in individuals with obesity. However, the mechanism of action of psychological flexibility is less known. The aim of the present study is, within the context of a brief ACT intervention for behavioral change and behavioral maintenance of a healthy lifestyle in a sample of inpatients with obesity, to explore the effect of each subcomponent of the psychological flexibility model on treatment processes and outcomes. Methods A randomized controlled trial will be conducted. Ninety Italian adult inpatients with obesity attending a rehabilitation program for weight loss will be randomly allocated into three experimental conditions targeting respectively each subcomponent of the psychological flexibility model: group Engage focused on values-oriented behaviors, group Openness focused on acceptance and cognitive defusion, and group Awareness focused on being present and aware of thoughts, feelings, and behaviors at every moment. Weight, BMI (kg/m2), the Psychological General Well-Being Inventory (PGWBI), the Outcome Questionnaire-45.2 (OQ-45.2), the Depression Anxiety and Stress Scale (DASS-21), the Difficulties in Emotion Regulation Scale (DERS), the Dutch Eating Behaviors Questionnaire (DEBQ), the Brief Values Inventory (BVI), the Committed Action Questionnaire (CAQ), the Italian-Cognitive Fusion Questionnaire (I-CFQ), the Five Facet Mindfulness Questionnaire (FFMQ), and the Acceptance and Action Questionnaire (AAQ-II) will be assessed at the beginning (time 0), at the end of psychological intervention (time 1), and after 3 (time 2) and 6 months (time 3) and 9 months (time 4) from discharge. During the following month after discharge, outpatients will be monitored in their adherence to a healthy lifestyle, using a wearable device. To assess the effectiveness of the intervention, mixed between-within 3 (conditions) × 4 (times) repeated measure ANOVAs will be conducted to examine changes from time 0 to time 1, 2, 3, and 4 in means of weight, BMI, and means of scores PGWBI, OQ-45.2, DASS, DERS, DEBQ, AAQ-II, BVI, CAQ, I-CFQ, and FFMQ, between three groups. Discussion This study will contribute to clarify the mechanism of action of each subcomponent of the psychological flexibility model and understand its impact on the promotion of a healthy lifestyle. Trial registration ClinicalTrials.govNCT04474509. Registered on July 4, 2020

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