Targeting Fear of Cancer Recurrence in Cancer Survivors: a Multicentre Randomized Controlled Trial to Evaluate Internet-Based Emotional Freedom Techniques and Internet-Based Mindfulness Meditation as Intervention Strategies
In this trial, the investigators introduce two internet-based psychological methods to meet the currently unmet medical need to cope with Fear of Cancer Recurrence (FCR) beyond the acute phase of cancer treatment: internet-based emotional freedom techniques (iEFT) and internet-based mindfulness intervention (iMMI). The primary aim of this trial is to examine the efficacy of Internet-Based Emotional Freedom Techniques (iEFT) and Internet-Based Mindfulness Meditation Intervention (iMMI) to alleviate Fear of Cancer Recurrence (FCR) in cancer survivors, as determined through the Fear of Cancer Recurrence Inventory (FCRI) in cancer survivors. To translate a statistically significant effect on FCR into a clinically significant change, the investigators would need to detect a between-group difference in mean FCRI at T1 of 10 points using an independent samples t-test (two experimental groups are compared against a single wait-list control). When the application of iEFT and/or iMMI appears effective to reduce FCR, these self-help methods could be implemented in clinical settings. The use of these low cost interventions with a low threshold, by an internet-based approach, will facilitate a potential implementation in clinical practice.
Aha BOOST Arm-hand BOOST Therapy to Enhance Recovery After Stroke: Clinical, Health Economic and Process Evaluation
The overall aim of this study is to establish the clinical- and cost-effectiveness of the arm-hand BOOST therapy when delivered on top of the usual care program in the sub-acute phase post stroke and to perform a process evaluation.
In this phase III RCT, 80 patients with stroke will be recruited from two inpatient stroke rehabilitation wards in Belgium and randomized to the experimental group receiving arm-hand BOOST therapy or the control group receiving the L-BOOST intervention, on top of their usual inpatient care program. The arm-hand BOOST program (1 hour/day, 5x/week, 4 weeks) consists of group exercises based on four key aspects, namely neurophysiology, sequences of reaching and grasping, de-weighting of the arm, and orientation of the hand towards objects. Additionally, technology-supported upper limb therapy will be provided two times 30 minutes per week. The L-BOOST intervention comprises a dose-matched program of lower limb exercises and general reconditioning. At baseline, after 4 weeks of training, 3 months after the intervention and at 12 months post stroke, outcome assessment will be performed. The primary outcome measure is the action research arm test (ARAT). Secondary outcomes include measures in the domain of upper limb function and capacity, independence, participation and quality of life. Multivariate ANOVA and sensitivity analyses will be used to compare change from baseline between groups. Information on medical costs will be collected to allow a health economic evaluation. Finally, a process evaluation will be performed to assist in identifying why arm-hand BOOST succeeds or fails unexpectedly or has unanticipated consequences, and how this can be optimized.
At the start of this study the investigators hypothesize that: (I) Aha BOOST will result in a significant greater improvement in arm-hand activity post-intervention, at follow-up and 12 months post stroke compared to control therapy (L-BOOST); (II) Aha BOOST will result in a significant greater improvement in upper limb function, performance, independence and activity of daily living, and participation post-intervention, at follow up and 12 months post stroke. (III) Investing in 24 hours of extra arm-hand therapy to subacute stroke patient in the inpatient rehabilitation setting can reduce the health-economic and societal cost 12 months post stroke.
The Impact of Physical Activity Versus Dietary Energy Restriction on Prostate Tumour and Muscle Tissue Protein Synthesis in Vivo in Prostate Cancer Patients
Background: Prostate cancer is the second most common cancer and the fifth leading cause of death in men worldwide. Tumour growth is attributed to disproportionately greater protein synthesis rates relative to protein breakdown rates. Tumour protein synthesis is modulated by several factors, including energy availability, blood flow, and hormone concentrations (e.g., IGF-1). Lifestyle modifications are rapidly becoming recognized as important adjunct therapeutic approaches to slow cancer development and enhance treatment efficacy. Dietary energy restriction is a 30-50% reduction in food intake, which induces an energy deficit and has been shown to attenuate tumour growth in rodent models. Muscle mass often declines during cancer treatment and negatively impacts treatment success rates and recovery. One drawback to dietary energy restriction is that it may accelerate declines in skeletal muscle mass and strength in cancer patients. Exercise also induces an energy deficit by increasing energy expenditure. In addition, exercise alters blood flow and releases circulating molecules, which appear to lower tumour protein synthesis rates. Exercise increases muscle protein synthesis rates, which would provide further benefits to cancer patients by helping to maintain skeletal muscle mass. Despite their promising therapeutic properties, the clinical efficacy of dietary energy restriction and exercise has not been directly determined in vivo in cancer patients.
Hypothesis and Objectives: The objective of this study is to compare the impact of dietary energy restriction versus (isocaloric) daily exercise on muscle, prostate, and prostate tumour protein synthesis rates over a 7-day period in vivo in prostate cancer patients.
It is hypothesized that 1) dietary energy restriction will lower both prostate tumour and muscle tissue protein synthesis rates and that 2) daily exercise will lower prostate tumour protein synthesis rates but increase muscle protein synthesis rates in prostate cancer patients.
Setting and Methods: Forty-five prostate cancer patients scheduled to undergo radical prostatectomy will be randomly assigned to one of three groups. The first group will undergo 7 days of dietary energy restriction (40% less food intake). The second group will perform 7 days of daily exercise and mild dietary energy restriction resulting in a total energy deficit of 40%. The third group will follow their regular diet and physical activity (control group). The research team will provide all aspects of the intervention (standardized meals, personalized exercise supervision). Patients will ingest deuterium-labelled water (2H2O) throughout the intervention period. After 7 days, patients will undergo a radical prostatectomy, during which tumour tissue, skeletal muscle tissue, and blood will be collected. Deuterium (2H-alanine) incorporation into the tissue samples will be measured to assess prostate tumour and skeletal muscle tissue protein synthesis rates.
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