Time Restricted Eating in Haematological Malignancies

Sponsor
British Columbia Cancer Agency
Study ID
NCT06862323
Phase
PHASE2
Status
Not Yet Recruiting

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Conditions

Eligibility Criteria

Sex
ALL
Age
18 Years - 85 Years
Healthy Volunteers
Accepted

Interventions

  • Time-Restricted Eating — BEHAVIORAL
    TRE will be defined as a 16 hour fast with an 8 hour feeding window, with the option of a longer feeding window one day per week. All participants will adhere to the fasting intervention for either 90 days (3 months) or 180 days (6 months) based on their preference. Participants will be provided guidance (see appendix 7, Fasting Guidelines) on how to achieve an 8 hour feeding window by day 9 of the study and are recommended to adhere to the 16 hour fast/8 hour feeding window daily for the remainder of the study.

Study Details

The goal of this clinical trial is to learn if time restricted eating (TRE), a form of intermittent fasting, can impact health outcomes in patients with chronic lymphocytic leukemia (CLL). The main questions it aims to answer are: * In patients with CLL, is there a decrease or stabilization in cancer cell counts associated with TRE compared to baseline? * Is there a decrease in immune cell autophagy (a cellular recycling process) activity associated with TRE compared to baseline? * Does adherence to a TRE regimen improve patient experience and quality of life? Immune cell autophagy activity in cancer patients will be compared to a subset of control participants without cancer. Participants will: * Adhere to a 16/8 fasting regimen, which involves eating as normal for 8 hours per day and fasting (only consuming water, black coffee or black tea) for the remaining 16 hours. They will follow this intervention for their choice of either 3 or 6 months. * Complete monthly blood collections * Complete weekly journal entries to record weekly weight and timing of first and last daily meals * Complete weekly safety check-ins with a study team member for the first 4 weeks of the study and then bi-weekly thereafter * Complete 3 quality of life questionnaires * Provide 3 stool samples (optional component of study) * Complete an end of study interview (optional component of study)

Key Dates

First listed
Mar 6, 2025
Start date
Jun 30, 2025
Status verified
Jun 2025
Primary completion
Dec 31, 2026
Completion
Aug 31, 2027

Study Design

Enrollment
75 participants (estimated)
Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE

Arms

  • Experimental: Experimental Group
    Research Design: A nonrandomized control design will be followed with a 4:1 ratio (experimental: control). The experimental arm will consist of patients with early stage CLL who are on surveillance (n=60). Participants will follow a fasting intervention of an 8-hour feeding window with a 16-hour fasting window for a minimum of 6/7 days per week for either 3 months (90 days) or 6 months (180 days) based on their preference. Participants with cancer will provide blood samples, stool samples (optional) and will complete journals, check ins, and quality of life surveys per the schedule outlined in section 5.7 as well as in the attached study protocol document in section 6. Upon completion of study, participants with cancer may also complete an optional end of study interview.
  • Active Comparator: Control Group
    The control arm will consist of community members who do not have cancer (n=15). Participants will follow a fasting intervention of an 8-hour feeding window with a 16-hour fasting window for a minimum of 6/7 days per week for either 3 months (90 days) or 6 months (180 days) based on their preference. Control participants will provide blood samples and weekly journals to serve as a control for autophagy flux analysis.

Primary Outcome Measure

Blood Sample Lymphocyte Count [ Time Frame: 3 months ]

Central Contacts

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