Pathway Mechanisms

Pathway Mechanisms

Professor Adrian Wells

Chief Investigator

2-year project

study name

Pathway Mechanisms

Study participants were heart disease patients with comorbid anxiety/depression symptoms referred to CR services at seven NHS Trusts in the North West and took part in the MCT-PATHWAY study. 

Study Participants

  • The study is a mechanistic study using data from the NIHR-funded PGfAR PATHWAY study. 
  • PATHWAY was completed in August 2021 and included two RCTs. 
  • The first RCT (WS2) was a multicentre, two-arm, single-blind RCT with four-month and twelve-month follow-ups comparing Group-MCT plus usual CR with usual CR alone. 
  • The second RCT (WS3) was a multicentre, two-arm, single-blind RCT with a four-month follow-up comparing home-based MCT plus usual CR with usual CR alone. 

Pathway Mechanisms Info

  • Depression and anxiety (distress) affect at least I in 3 patients attending cardiac rehabilitation (CR). 
  • Talking-based therapies are not routinely offered and when available, have limited effects. 
  • This is concerning because distressed patients are at greater risk of death, further cardiac events, poorer quality of life, and use more healthcare services. 
  • Our previous studies found that adding a talking-based therapy called metacognitive therapy (MCT for short) to CR significantly reduced distress. 
  • We need to understand more about why MCT works, who it works best for, and which of the MCT techniques are most successful. 
  • This will allow us to understand why treatment might fail for some people, which techniques need to be improved and which shouldn’t be changed. 
  • To understand how and why metacognitive therapy (MCT) decreases distress in cardiac rehabilitation (CR) patients. 
  1. Compare the mechanisms with distress scores in all patients (MCT+CR and CR alone).
  2. Compare the MCT techniques used in a session with any changes in the mechanisms after that session.
  3. Compare the mechanisms of patients who attended CR alone (control group only) with their distress scores.
  • We will use data from our NIHR-funded PATHWAY trials of MCT. 
    • In trial one, 332 CR patients received MCT in a group setting plus CR or CR alone. 
    • In trial two, 240 CR patients received self-help MCT plus CR or CR alone. 
  • Participants filled in questionnaires before and after treatments that measured distress, coping strategies, and beliefs (mechanisms) that we know keep distress going and are changed in therapy. 
  • In trial 1, one of the questionnaires that measures mechanisms was completed after each session. 
  • Our PPI group, whom we have been working with for 10 years, have reviewed the study aims and provided feedback on the lay summary. 
  • Throughout the grant, the PPI group will review the results, ensure they are interpreted in lay language and will co-develop the dissemination strategy. 
Background
  • Depression and anxiety (distress) affect at least I in 3 patients attending cardiac rehabilitation (CR). 
  • Talking-based therapies are not routinely offered and when available, have limited effects. 
  • This is concerning because distressed patients are at greater risk of death, further cardiac events, poorer quality of life, and use more healthcare services. 
  • Our previous studies found that adding a talking-based therapy called metacognitive therapy (MCT for short) to CR significantly reduced distress. 
  • We need to understand more about why MCT works, who it works best for, and which of the MCT techniques are most successful. 
  • This will allow us to understand why treatment might fail for some people, which techniques need to be improved and which shouldn’t be changed. 
Study Aims
  • To understand how and why metacognitive therapy (MCT) decreases distress in cardiac rehabilitation (CR) patients. 
  1. Compare the mechanisms with distress scores in all patients (MCT+CR and CR alone).
  2. Compare the MCT techniques used in a session with any changes in the mechanisms after that session.
  3. Compare the mechanisms of patients who attended CR alone (control group only) with their distress scores.
Methods
  • We will use data from our NIHR-funded PATHWAY trials of MCT. 
    • In trial one, 332 CR patients received MCT in a group setting plus CR or CR alone. 
    • In trial two, 240 CR patients received self-help MCT plus CR or CR alone. 
  • Participants filled in questionnaires before and after treatments that measured distress, coping strategies, and beliefs (mechanisms) that we know keep distress going and are changed in therapy. 
  • In trial 1, one of the questionnaires that measures mechanisms was completed after each session. 
PPI
  • Our PPI group, whom we have been working with for 10 years, have reviewed the study aims and provided feedback on the lay summary. 
  • Throughout the grant, the PPI group will review the results, ensure they are interpreted in lay language and will co-develop the dissemination strategy. 

Project Timeline

Stage 1

Months 1-3 will be for study initiation including the creation of databases. 

Stage 2

Months 3-19 will be for data cleaning and data analyses. 

Stage 3

Months 19-24 will be for report writing and dissemination. 

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