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Active, not recruitingNCT06379282ClinicalTrials.gov record

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

THE QUICK READ

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
Understand screening

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

Prepare your questions

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

No results are flagged as posted.

Review the complete result tables and limitations in the official record.

Open official results ↗

Research locations (1)

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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

A HUMAN NEXT STEP

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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