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How can a remotely delivered, personalised physical activity intervention for people with high risk of breast, lung and bowel cancer recurrence be implemented in England? Protocol for a mixed-methods process evaluation embedded in a feasibility basket tri

Por: Jackson · G. · Pearson · M. · Bullock · A. F. · Cohen · J. · Huang · C. · Lind · M. · Saxton · J. · Wilson · C. · Twiddy · M. · Forbes · C. C.
Introduction

Randomised controlled trials (RCTs) are essential to determine intervention effectiveness yet they often fail to capture how and why interventions succeed or fail in different contexts. Embedding a process evaluation alongside a clinical trial allows exploration of implementation processes, intervention fidelity and contextual influences. The CANFit trial is a basket-design RCT evaluating a personalised, remotely delivered exercise intervention for people diagnosed with breast, lung and bowel cancer with increased risk of recurrence. This embedded process evaluation aims to understand how individual, team and organisational factors influence intervention delivery and uptake.

Methods and analysis

A concurrent, mixed-methods process evaluation will be conducted using a hybrid type 1 design. Data will be collected from multiple sources, including participant and trainer questionnaires, semi-structured interviews, intervention adherence logs, trainer diaries and observations. Five core implementation outcomes, guided by Proctor’s framework—acceptability, appropriateness, fidelity, penetration and sustainability—will structure the evaluation. Quantitative data will be analysed descriptively and qualitative data will undergo framework analysis using both deductive and inductive coding. Data integration will occur through a convergent mixed-methods approach, using context-mechanism-outcome (CMO) configurations to refine programme theory.

Ethics and dissemination

Ethical approvals were obtained through Hull York Medical School (ID: 23/SS/0060) and the UK NHS Health Research Authority (ID: 327663). All participants will provide informed consent before taking part. Data will be handled according to General Data Protection Regulation and University of Hull data management policies. Findings will be disseminated through peer-reviewed publications, conference presentations, stakeholder reports and lay summaries for participants and the public.

Trial registration number

ISRCTN97662203.

Extracorporeal Shockwave Therapy for Diabetes Related Foot Ulcers: A Pilot Three‐Arm Double‐Blinded Randomised Controlled Trial

ABSTRACT

There is an urgent need for effective interventions to aid diabetes-related foot ulcer (DFU) healing. This study aimed to test the deliverability of a proposed trial of extracorporeal shockwave therapy (ESWT) for DFU healing. A pilot double-blinded randomised controlled trial. Patients with a DFU present for ≥ 4 weeks were randomised to high dose (500 shocks/cm2), low dose (100 shocks/cm2) or sham (0 shocks/cm2) ESWT, plus standard care. Follow-up was for 24 weeks. Primary outcome was deliverability of the trial. Secondary outcomes were healing, quality of life and healthcare resource use. One-hundred and forty-one (15.6%) screened patients were eligible and 74 (52.5%) patients were recruited. Follow-up attendance was 97.3% (72/74), 93.2% (69/74) and 87.8% (65/74) at 6, 12 and 24 weeks. The median DFU healing time was high dose: 54.0 (IQR 119.0), low dose: 78.5 (IQR 61.0) and sham: 83.0 (IQR 85.0) days. The mean EQ-5D-5L utility value at 24 weeks was high dose: 0.621 (95% CI 0.438–0.804), low dose: 0.779 (95% CI 0.683–0.876) and sham: 0.806 (95% CI 0.717–0.895). Healthcare resource use was lowest in the low-dose ESWT arm. The pilot trial has demonstrated that patients with a DFU are willing to engage in the proposed trial and suggest the optimal way to deliver the definitive trial.

Phase II randomised controlled basket feasibility trial of a personalised, remotely delivered exercise programme on disease-free survival among early-stage, high-risk cancers: CANFit study protocol

Por: Bullock · A. F. · Cohen · J. · Huang · C. · Jackson · G. · Lind · M. · Pearson · M. · Richardson · G. · Saxton · J. · Twiddy · M. · Wilson · C. · Forbes · C.
Introduction

Evidence suggests a 38% risk reduction in breast and bowel cancer-specific mortality with higher levels of exercise, however, most of this evidence is observational. More clinical trials are needed to build strong evidence for exercise’s impact on recurrence and survival. This study aims to assess the feasibility, acceptability and potential efficacy of a remote, tailored exercise programme on disease-free survival in patients recently completing curative treatment for early-stage, high-risk lung, breast or bowel cancer.

Methods and analysis

This UK-based, multicentre randomised controlled basket feasibility trial compares a personalised, remote-delivered exercise programme supported by exercise professionals against usual care. Potential participants are approached if they are: aged 18 or over, diagnosed with high-risk, early-stage breast, bowel or lung cancer, and within 24 weeks of completing primary curative treatments. Participants complete objective measures of physical function (submaximal cardiovascular fitness, endurance, muscle strength and balance), body composition (bioelectrical impedance) and self-reported outcomes (total physical activity, sleep quality, general quality of life (QoL), cancer-related QoL and exercise confidence/motivation). Clinical case note review provides disease-free survival outcomes at 6, 12 and 24 months. The 12-week programme is delivered remotely (via phone, email and/or video conference) with trainer contact tapering off over the subsequent 12 weeks (24 weeks total). Recruitment is ongoing with a 660-participant goal. Descriptive measures (quantitative and qualitative) will be reported for feasibility outcomes: recruitment, adherence, retention rates, data collection quality, adverse events, intervention acceptability and fidelity. A process evaluation is being conducted concurrently and is reported separately. Kaplan-Meier curves will be plotted and median disease-free survival calculated for each arm. To determine intervention impact, a log-rank test (unadjusted) will compare 2-year disease-free survival between groups within and among cancer types. Secondary outcomes (physical function status, general/cancer-specific QoL and determinants of meeting activity guidelines) will be reported at each time point.

Ethics and dissemination

Ethical approvals were obtained through Hull York Medical School (ID: 23/SS/0060) and UK NHS Health Research Authority (ID: 327663). Findings will be submitted for publication in high-impact journals, presentation at national and international conferences, press releases where appropriate, and dissemination activities to be decided on with the Patient Advisory Group.

Trial registration number

ISRCTN97662203.

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