NCT05259410

Brief Summary

Breast cancer is the most common cancer in the United States however, little is known about how diet can affect cancer treatment. Pre-clinical murine studies report intermittent fasting increases effectiveness of chemotherapy and decreases treatment related adverse events. The proposed research will demonstrate that time restricted eating, a form of intermittent fasting, will improve treatment related outcomes, patient related outcomes, and limit treatment related weight gain and fat mass accretion.Time restricted eating combined with a mediterranean diet will also be feasible and improve cardiometabolic risk more than TRE alone or standard care.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
40

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Aug 2022

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 26, 2022

Completed
1 month until next milestone

First Posted

Study publicly available on registry

February 28, 2022

Completed
5 months until next milestone

Study Start

First participant enrolled

August 1, 2022

Completed
3.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2026

Completed
Last Updated

October 1, 2025

Status Verified

February 1, 2025

Enrollment Period

3.6 years

First QC Date

January 26, 2022

Last Update Submit

September 29, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Feasibility 8-h TRE

    enrollment rate

    12 weeks

Secondary Outcomes (7)

  • Relative dose intensity

    12 weeks

  • Treatment side effects

    12 weeks

  • EROTC quality of life score

    12 weeks

  • Body weight change

    12 weeks

  • Body composition

    12 weeks

  • +2 more secondary outcomes

Study Arms (3)

Time restricted eating

EXPERIMENTAL

Participants will eat all food within the same self selected 8 hour window daily.

Behavioral: TRE

Standard care

NO INTERVENTION

Current standard care is to eat enough calories and protein to maintain weight and lean mass.

Med TRE

EXPERIMENTAL

Participants will eat a mediterranean style diet within the same self selected 8 hour window daily.

Behavioral: MedTRE

Interventions

TREBEHAVIORAL

All food eaten within the same self-selected 8 hour eating window daily, water fasting the remaining hours of the day.

Time restricted eating
MedTREBEHAVIORAL

A mediterranean style diet will be eaten within the same self-selected 8 hour eating window daily, water fasting the remaining hours of the day.

Med TRE

Eligibility Criteria

Age25 Years - 99 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • 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.

You may not qualify if:

  • 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
  • +6 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Illinois Chicago

Chicago, Illinois, 60612, United States

RECRUITING

Study Officials

  • Kelsey Gabel, MS, RD, PhD

    UIC

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Kelsey Gabel, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Clinical Assistant Professor, Postdoctoral Research Associate

Study Record Dates

First Submitted

January 26, 2022

First Posted

February 28, 2022

Study Start

August 1, 2022

Primary Completion

March 1, 2026

Study Completion

March 1, 2026

Last Updated

October 1, 2025

Record last verified: 2025-02

Data Sharing

IPD Sharing
Will not share

Locations