NCT04330339

Brief Summary

This study is being done to examine whether fasting for 13 hours every night is feasible and if it can help breast cancer survivors lose weight and improve their health.

  • Previous studies have found that women who are overweight or obese when their breast cancer is found (diagnosed) have a greater risk of their breast cancer recurring. Recent research suggests that prolonged nighttime fasting (\>13 hours) may improve the risk of recurrence for breast cancer.
  • This study will examine if fasting for 13 hours per night is doable for participants and will also study what the effect of fasting is on quality of life, mood, fatigue, body size, and markers of health in the blood.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
40

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jul 2020

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

March 25, 2020

Completed
7 days until next milestone

First Posted

Study publicly available on registry

April 1, 2020

Completed
4 months until next milestone

Study Start

First participant enrolled

July 24, 2020

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 31, 2021

Completed
1.4 years until next milestone

Study Completion

Last participant's last visit for all outcomes

July 5, 2022

Completed
Last Updated

July 21, 2022

Status Verified

July 1, 2022

Enrollment Period

6 months

First QC Date

March 25, 2020

Last Update Submit

July 18, 2022

Conditions

Keywords

FastingBreast CancerSurvivorshipBreast Cancer Recurrent

Outcome Measures

Primary Outcomes (1)

  • Percentage of Participants adhere to 13 hours of fasting

    Feasibility will be demonstrated if ≥60% of participants adhere to 13 hours of fasting nightly at least 70% of the nights during the intervention. Adherence will be assessed through patient-reported fasting logs.

    12 weeks

Secondary Outcomes (15)

  • Change in body mass index (BMI) (kg/m^2)

    12 weeks

  • Quality of life (QOL) Change using the Functional Assessment of Cancer Therapy General Scale (FACT-G)

    6 and 12 weeks

  • Change in Hospital Anxiety and Depression Scale (HADS) (min score: 0; max score: 21. A higher score indicates more anxiety and/or depression)

    6 and 12 weeks

  • Change in fatigue as assessed by Functional Assessment of Chronic Illness Therapy - Fatigue

    6 and 12 weeks

  • Change in physical activity using the Godin Leisure-Time Exercise Questionnaire

    6 and 12 weeks

  • +10 more secondary outcomes

Study Arms (1)

Fasting

EXPERIMENTAL

* Eligible participants will undergo baseline assessments prior to starting the intervention. * Baseline assessments include measurements of weight, height, quality of life, fatigue, mood, levels of physical activity, and blood markers. * Participants will fast for 13 hours nightly for 12 weeks. * Assessments will be repeated at the completion of the 12-week intervention.

Behavioral: Fasting

Interventions

FastingBEHAVIORAL

Fasting

Fasting

Eligibility Criteria

Age18 Years+
Sexfemale(Gender-based eligibility)
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Participants must have a documented history of histologically confirmed invasive breast cancer.
  • Participants with a history of stage I to III invasive breast cancer, and no current evidence of disease.
  • A history of bilateral breast cancer is allowed provided the patient is currently disease free, with stage I to III disease on both sides.
  • No evidence of distant metastatic disease or unresectable locally recurrent disease
  • All adjuvant or neoadjuvant cytotoxic chemotherapy, radiation, and surgery for breast cancer must have been completed at least 6 month prior to registration. Except:
  • Adjuvant hormonal therapy is permitted. Must have been on for a minimum of 1 month.
  • Adjuvant trastuzumab, pertuzumab, TDM1, or neratinib for Her2 positive breast cancer is permitted Age ≥18 years.
  • Participant must be female.
  • Ability to understand and the willingness to sign a written informed consent document

You may not qualify if:

  • Distant metastatic breast cancer (Stage IV breast cancer) or unresectable locally recurrent disease
  • Participants with diabetes mellitus.
  • Participants with a pre-existing eating disorder (anorexia nervosa, bulimia)
  • Participants with a BMI\< 19kg/m2 or a weight loss of 5% in the last month or 10% in the last 3 months.
  • Participants using weight loss medications at the time of study enrollment.
  • Participants using oral steroids at the time of enrollment.
  • Participants who are receiving any other investigational agents. Participants with uncontrolled intercurrent illness.
  • Participants with psychiatric illness/social situations that would limit compliance with study requirements.
  • Pregnant women are excluded from this study because the effects of prolonged fasting on the fetus are not known.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Massachusetts General Hospital Cancer Center

Boston, Massachusetts, 02114, United States

Location

Related Publications (1)

  • O'Donnell E, Shapiro Y, Comander A, Isakoff S, Moy B, Spring L, Wander S, Kuter I, Shin J, Specht M, Kournioti C, Hu B, Sullivan C, Winters L, Horick N, Peppercorn J. Pilot study to assess prolonged overnight fasting in breast cancer survivors (longfast). Breast Cancer Res Treat. 2022 Jun;193(3):579-587. doi: 10.1007/s10549-022-06594-4. Epub 2022 Apr 20.

MeSH Terms

Conditions

FastingBreast Neoplasms

Interventions

Angptl4 protein, mouse

Condition Hierarchy (Ancestors)

Feeding BehaviorBehaviorNeoplasms by SiteNeoplasmsBreast DiseasesSkin DiseasesSkin and Connective Tissue Diseases

Study Officials

  • Elizabeth K O'Donnell

    Massachusetts General Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
SUPPORTIVE CARE
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

March 25, 2020

First Posted

April 1, 2020

Study Start

July 24, 2020

Primary Completion

January 31, 2021

Study Completion

July 5, 2022

Last Updated

July 21, 2022

Record last verified: 2022-07

Data Sharing

IPD Sharing
Will share

The Dana-Farber / Harvard Cancer Center encourages and supports the responsible and ethical sharing of data from clinical trials. De-identified participant data from the final research dataset used in the published manuscript may only be shared under the terms of a Data Use Agreement. Requests may be directed to: \[contact information for Sponsor Investigator or designee\]. The protocol and statistical analysis plan will be made available on Clinicaltrials.gov only as required by federal regulation or as a condition of awards and agreements supporting the research.

Shared Documents
STUDY PROTOCOL, SAP, ICF
Time Frame
Data can be shared no earlier than 1 year following the date of publication
Access Criteria
Contact the Partners Innovations team at http://www.partners.org/innovation

Locations