Timing your meals might ease chemo side effects, new study suggests
NCT ID NCT05259410
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether eating only during an 8-hour window each day (time-restricted eating) can help women with breast cancer feel better and have fewer side effects during chemotherapy. Some participants will also follow a Mediterranean diet. The goal is to see if these eating patterns are safe, help with treatment, and prevent weight gain. About 40 women with early-stage breast cancer will take part.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 40 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2022
- Expected to finish
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Mar 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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25 to 99 years
- Sex
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Female participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Age 25-99 at time of consent * ECOG 0 or 1 * Breast cancer to meet histologically confirmed Stage I-III. * Demonstrates adequate organ function (absolutely neutrophil count ≥ 1,500/μL). * All screening labs to be obtained within 30 days prior to registration. * Able to provide written informed consent and HIPAA authorization for release of personal health information, via an approved UIC Institutional Review Board (IRB) informed consent form and HIPAA authorization. * Women of childbearing potential must not be pregnant or breast-feeding. A negative serum or urine pregnancy test is required per institutional practice guidelines. * As determined at the discretion of the enrolling physician or protocol designee, ability of the subject to understand and comply with study procedures for the entire length of the study. Exclusion Criteria: * Women with metastatic disease or type 1 or 2 diabetes * Women with BMI ≥ 40kg/m2 and \< 25kg/m2 * Women who are pregnant. A negative serum or urine pregnancy test is required per institutional practice guidelines. * Night shift workers * Women with a history of eating disorders * Enrolled participants with a significant weight loss or weight gain within 3 months of the study (weight gain or loss \>4kg) * Active infection requiring systemic therapy * Uncontrolled HIV/AIDS or active viral hepatitis * Pregnant or nursing * Any prior or concurrent malignancy whose natural history or treatment has the potential to interfere with the safety or efficacy assessment of this investigational regimen, as determined by the treating medical oncologist. * Any mental or medical condition that prevents the patient from giving informed consent or participating in the trial. * Other major comorbidity, as determined by study PI * Illicit drug use or excessive use of alcohol (i.e., \> 2 drinks/day) * Currently participating in Weight Watcher's or another weight loss program * Myocardial infarction * Stroke * Congestive heart failure * Chronic hepatitis * Cirrhosis * Chronic pancreatitis * History of solid organ transplantation
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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University of Illinois Chicago
RECRUITINGChicago, Illinois, 60612, United States
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Other studies related to the condition(s) this trial covers.
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