Fasting before chemo: a new way to ease side effects?
NCT ID NCT05990426
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether alternate day fasting (eating very little every other day) before chemotherapy can help reduce side effects and improve quality of life for women with ovarian, endometrial, or uterine cancer. About 30 women who have had surgery and are about to start chemo will be randomly assigned to either fast or eat normally. The main goal is to see if the fasting plan is safe and doable, and to gather information for larger future studies.
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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 30 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Oct 2023
- Expected to finish
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Aug 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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18 years and older
- 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Female; ≥ 18 years of age 2. Confirmed or high suspicion for endometrial, ovarian, fallopian tube or primary peritoneal cancer, and are able and expecting to undergo adjuvant chemotherapy following hysterectomy for treatment of disease, as determined by their treating physician 3. Fluent in spoken and written English 4. Own a smart phone 5. Have access to the internet to complete surveys 6. ECOG status of 0 or 1 7. Willingness to sign informed consent form Exclusion Criteria: 1. Patients who are not planning to undergo chemotherapy at Northwestern Medicine 2. Patients engaged in shift work (i.e., those who work nights, 3rd shift) 3. BMI of 50+ or those with a diagnosed eating disorder. Patients who take medications for blood glucose regulation (e.g. insulin), and/or require treatment with therapeutic doses of anticoagulants will be excluded. 4. Patients who have been diagnosed with medication-dependent diabetes, recent myocardial infarction, stroke, pulmonary embolus, renal failure, or any condition that may preclude ability to tolerate a short-term fast will be excluded. 5. Patients who take medications where conditions may be influenced in the presence of fasting (e.g. hypertension, electrolyte abnormalities, migraines) will be monitored by their treating physician for any necessary adjustments in these medications. 6. Patients whose oncologist has not provided clearance for their participation 7. Unable or unwilling to follow a diet regimen or participate in ketone measurements 8. ECOG status greater than 1 9. Patients who have undergone prior systemic therapy to treat a malignancy in the last 2 years.
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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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Northwestern Memorial Hospital
RECRUITINGChicago, Illinois, 60611, United States
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- Can a Weight-Loss drug and an IUD treat early uterine cancer without surgery?