NCT07622901 · University of Miami
Fasting InTervention for Endometrial Cancer
(FIT-ENDO)
What this study is about
The goal of this study is to find out if it is safe for women with endometrial cancer who are going to have surgery to fast (not eat) overnight. Studies have shown that women with endometrial cancer often have problems with metabolism, like high blood sugar. These problems can cause inflammation and may help cancer grow or make treatment less effective.
View original scientific description
The goal of this study is to find out if it is safe for women with endometrial cancer who are going to have surgery to fast (not eat) overnight. Studies have shown that women with endometrial cancer often have problems with metabolism, like high blood sugar. These problems can cause inflammation and may help cancer grow or make treatment less effective. Early research shows that fasting overnight might help improve these problems.
Interventions
BEHAVIORAL
Prolonged Overnight Fasting (POF)
Participants will be asked to not consume any calorie-containing food/drinks after 8pm and to fast at least 12 hours nightly, increasing to 14 hours gradually over the course of a week. Participants will be asked to maintain the prolonged overnight fasting (POF) for the duration of the intervention, with modifications as needed in the immediate postsurgery phase. Participants will be asked to record the fasting times (morning and evening) either on a paper journal that will be returned to research staff by mail, email, or text message, or by completing an eJournal through My Wellness Research Patients will enroll and begin the intervention 28 +/- 14 days prior to their scheduled surgery (hysterectomy) and continue for 6 weeks postsurgery.
PROCEDURE
Blood Specimen Collection
Blood specimens will be collected from participants at baseline (T0), the day of surgery (T1), and at six weeks post-surgery (T2).
OTHER
Blood Sugar Monitor
Participants in both groups will wear a blood sugar monitor for the duration of their participation on the study, except on the day of surgery. The monitor is worn on the participant's arm and checks the participants blood sugar every 15 minutes.
PROCEDURE
Hysterectomy
Participants in both groups will undergo planned hysterectomy for their endometrial cancer, standard of care.
Primary outcome measures
Feasibility of Recruitment: Percentage of Participants That Consent to Participate and Meet Eligibility Criteria
Time frame: Baseline
Feasibility of recruitment will reported as the percentage of participants who consent to participate and meet eligibility criteria. Criterion for success: At least (≥) 50% of all eligible participants at Baseline (T0) consent to participate between both arms.
Feasibility of Retention: Percentage of Participants Who Adhere to and Complete the Intervention and Data Collection at All Time Points.
Time frame: Up to 10 weeks
Feasibility of retention will be reported as the percentage of participants who adhere to and complete the prolonged overnight fasting (POF) intervention and data collection at all time points. Criterion for success: Greater than (\>) 70% of all assigned participants complete the intervention and data collection at all time points (T2).
Acceptability: Percentage of Participants Who Report Satisfaction with the Intervention.
Time frame: Up to 10 weeks
Acceptability will be reported as the percentage of participants who report satisfaction with the prolonged overnight fasting (POF) intervention after completion. Criterion for success: Greater than (\>) 80% of all assigned participants report satisfaction with the intervention at the time of study completion (T2).
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Women 18 years of age or older.
- Able to provide consent.
- Able to read/understand English, Spanish or Haitian Creole.
- Have a diagnosis of Type I (low-grade) endometrial cancer at any stage, histologically confirmed prior to the start of the intervention.
- Planned minimally invasive surgical treatment (laparoscopy or robotic approach to hysterectomy).
- Approval to participate from treating oncologist, confirmed via email or in writing.
- Eastern Cooperative Oncology Group (ECOG) Performance status grade 0-2.
- Surgeries must be at one of the following institutions:
- Sylvester Comprehensive Cancer Center
- University of Miami Hospital (UHealth) Tower
- Internet access on a smart phone, tablet, or computer.
- Agree to be randomly assigned to any study group.
Exclusion criteria
- Women less than 18 years of age.
- Unable to provide consent.
- Unable to read/understand English or Spanish.
- History of prior hysterectomy.
- Any contraindication for prolonged overnight fasting of 13 hours or exercising as determined by a physician.
- Engaging in structured fasting consistently (equal to or more than 50% of the time) for \>12 hours/night.
- Presence of a severe medical or psychiatric condition or medication that would preclude participation of the study intervention, unstable cardiac disease.
- Diagnosis of diabetes treated with insulin, metformin, sulfonylureas, or Glucagon-like peptide-1 (GLP-1) agonist medications.
- Recent history of a clinical eating disorder as determined by self-report, medical history, or clinical judgement. Participants with a history of an eating disorder that is well-managed and in sustained remission may be eligible, subject to investigator discretion.
- Women for whom definitive hysterectomy is not planned for treatment of their endometrial cancer.
Where
- Miami, Florida
Collaborators
Florida Department of Health
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jul 14, 2026 · Source of record for eligibility and locations