Investigating the Role of Energy Balance Modification on Health Responses in Chronic Lymphocytic Leukaemia
Chronic Lymphocytic Leukemia · Frailty · Muscle Function · Immune Function · Lipid Cell; Tumor
What this study involves
The registry does not currently label this study as recruiting. Ask about its status before planning a screening visit.
- Study type
- Interventional
- Phase
- Not applicable
- Age range
- 18 years - Not specified
- Sex eligible
- All sexes
- Healthy volunteers
- Not accepted
- Participants
- 132 Estimated
These are starting points, not an eligibility decision. The research team must review the full requirements.
About the research
This randomised control clinical trial aims to investigate the effects of exercise training and diet on physical and functional fitness and immunological and metabolic changes in adults with chronic lymphocytic leukaemia. Investigators will randomise participants to either 12 weeks of supervised/semi-supervised exercise only, exercise + nutritional guidance, or no exercise.
Read the full description
This study aims to perform a randomised control trial of exercise or exercise plus nutritional guidance on the physiological and immunological health of adults diagnosed with chronic lymphocytic leukaemia (CLL). Recruited participants will be randomised to either 12 weeks of an exercise-only program, an exercise-plus nutritional guidance program or a no-exercise control group. Fasting blood samples collected at Baseline and 12 weeks will measure absolute CLL cell counts, immune function, and inflammatory and metabolic biomarkers. A series of physical fitness assessments will be assessed at baseline and 12 weeks to determine physiologic reserve and resilience against external stressors. Additionally, participants will be asked to return 12 weeks after completing the intervention to assess the legacy effects of the intervention on the same physiological and blood-based biomarkers of health.
Who may be able to participate?
The list below is the sponsor’s full registry wording. It can include conditions, prior treatment, test results and other requirements. A match in search does not mean you qualify.
Inclusion Criteria:
- Confirmed diagnosis of CLL (including small lymphocytic leukaemia) as per the International Workshop on CLL Guidelines.
- Male or female ≥ 18 years of age
- Able to walk on a treadmill or cycle on an ergometer
- Pass the Physical Activity Readiness Questionnaires (PAR-Q and PAR-Q+)
Exclusion Criteria:
- Corticosteroid therapy initiated less than 7 days before study entry. Prednisone 10mg or less or equivalent is allowed. Topical or inhaled corticosteroids are permitted.
- Secondary malignancy within 3 years of study enrollment requiring intervention except for adequately treated basal, squamous cell carcinoma or non-melanomatous skin cancer, carcinoma in situ of the cervix, superficial bladder cancer not treated with intravesical chemotherapy or BCG within 6 months, localised prostate cancer and PSA stable.
- Absolute contraindications to exercise: Recent (\<6 months) acute cardiac event unstable angina, uncontrolled dysrhythmias causing symptoms or hemodynamic compromise, symptomatic aortic stenosis, uncontrolled symptomatic heart failure, acute pulmonary embolus, acute myocarditis or pericarditis, suspected or known dissecting aneurism and acute systemic infection.
- Significant orthopaedic limitations, musculoskeletal disease and/or injury. Due to the nature of the study, persons with known joint, muscle or other orthopaedic limitations that restrict physical activity may be excluded.
- Type I diabetes mellitus or uncontrolled Type II diabetes mellitus, or chronic obstructive pulmonary disease
- Uncontrolled blood pressure (≥180/90) at rest
- Known concurrent HIV, Hepatitis B or Hepatitis C
- Unable to comply with other study requirements
Treatment, groups and participation
The registry may describe treatments and study duration without a complete visit calendar. Ask the study team for the exact schedule, procedures, risks, costs and alternatives. Keep your usual care plan unless your treating clinician tells you otherwise.
- Assignment
- Random assignment
- Masking
- No masking
HIT Group
Exercise Only
- 3 sessions per week
- Aerobic + Resistance Exercises
Behavioral: HIT
EXE+ Group
Exercise + Nutritional Guidance
- 3 sessions per week
- Aerobic + Resistance Exercises
- Dietary assessment at baseline and during with guidance on eating a healthy diet provided
Behavioral: EXE+ Nutritional Guidance
Control Group
Control group will receive no exercise or nutritional guidance
HIT BEHAVIORAL
Exercise training only
EXE+ Nutritional Guidance BEHAVIORAL
Exercise Training + Nutritional Guidance
What researchers are measuring
Outcome measures describe what is being studied. They are not proof that a treatment works.
Primary measures
Change from baseline in absolute number of CD19+/CD5+ CLL cells at week 12
Time frame: Baseline and 12 weeks
A blood sample will be taken and assessed for CD19+/CD5+ CLL frequency using flow cytometry and total lymphocyte counts to determine the absolute number of CLL cells in x10\^9/L
Change from baseline in cardiorespiratory fitness (CRF: VO2peak) at week 12
Time frame: Baseline and 12 weeks
Cardiopulmonary exercise testing will be conducted to assess changes in fitness
Secondary measures
Frailty
Time frame: Baseline and 12 weeks
Frailty will be determined by a series of validated physical function tests that provide a score of 0-1(Robust), 2 (Pre-Frail), 3-5 (Frail)
Muscle Strength and Endurance
Time frame: Baseline and 12 weeks
Estimated one repetition maximum and repetitions to failure using machine-based weights
Muscle Health
Time frame: Baseline and 12 weeks
Ultrasound and near-infrared spectroscopy assessment of muscle fuel usage
Change in Quality of Life using the EORCT-QLQ-C30
Time frame: Baseline and 12 weeks
Quality of life will be determined by the EORCT-QLQ-C30 questionnaire
Change in muscle oxygen metabolism during a single bout of exercise
Time frame: Baseline and 12 weeks
Measurement of muscle oxygenation via near infrared spectroscopy during a single session of acute exercise
Change in B-CLL Cell Function
Time frame: Baseline and 12 weeks
Measurement of in vitro B-CLL cell proliferation by flow cytometry
Change in systemic and cellular bioenergetics
Time frame: Baseline and 12 weeks
Measurement of in vitro immune cell fuel utilisation by high resolution respirometry and mass spectrometry
Other measures
Legacy Effect of Intervention on change in cardiorespiratory fitness (VO2peak) as measured by a cardiopulmonary exercise test
Time frame: 12 weeks to 24 weeks
Reassessment of CRF following 12 weeks of unguided exercise training
Legacy Effect of Intervention on absolute number of CD19+/CD5+ CLL cells
Time frame: 12 weeks to 24 weeks
Reassessment of absolute number of CD19+/CD5+ CLL cells following 12 weeks of unguided exercise training
Review the complete result tables and limitations in the official record.
Open official results ↗Research locations (1)
The overall study status and a local site’s status can differ. Confirm that location’s availability before traveling.
1 locations
University of SurreyGuildford, United KingdomStatus unknown
Study team and timeline
- Lead sponsor
- University of Surrey
- Study start
- Oct 14, 2022 Actual
- Primary completion
- Aug 1, 2025 Actual
- Study completion
- Aug 1, 2030 Estimated
- First posted
- Apr 23, 2024 Actual
- Last updated
- Nov 10, 2026 Actual
Official study contacts
No central contact is listed. Check the locations and the official record.
Official study title
Investigating the Role of Energy Balance Modification on Health Responses in Chronic Lymphocytic Leukaemia
Ask Wellness Clinical Research
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Source: ClinicalTrials.gov API v2. Information is submitted by sponsors and investigators. NLM does not approve the safety or science of all listed studies. Registry disclaimer.
Retrieved: Nov 12, 2026 · Last registry update: Nov 10, 2026
