The RolE of Prolonged Nightly faSTing to Improve Sleep and cOgnition in bREast Cancer Survivors

Purpose

The investigators are interested in finding out how Prolonged Nightly Fasting (PNF) and/or health education may impact health and cancer recovery for breast cancer patients and survivors.

Conditions

  • Breast Cancer Survivor
  • Cancer Related Cognitive Difficulties
  • Sleep
  • Quality of Life

Eligibility

Eligible Ages
Over 18 Years
Eligible Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  1. ≥18 years old 2. diagnosed with breast cancer (all stages included) 3. ≥3 months post neoadjuvant or adjuvant chemotherapy (maintenance or palliative systemic therapy is included) 4. score ≤30 or lower on the Patient Reported Outcome Measurement Information System Cognitive Function Short Form 8a (sr-CRCI) 5. able to speak/understand English 6. have access to a computer and Wi-Fi 7. live within the United States 8. Identifies as female 9. willing and able to fully participate in the study

Exclusion Criteria

  1. type 1 diabetes 2. actively enrolled in formal diet/weight loss program 3. previous bariatric surgery 4. eating disorder history 5. night shift work 6. pregnant, breast feeding, or trying to get pregnant 7. dementia, psychological, psychiatric, or neurological diagnoses 8. active brain or central nervous system disease 9. prior or current use of memory enhancing medications 10. history or current brain radiation 11. frequently fasting for 12+ hours every night 13) history of hypoglycemia 14) depression screening on PHQ9 with a score of 20 or greater across all 9 questions OR anything other than 0 on question 9

Study Design

Phase
N/A
Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel Assignment
Intervention Model Description
One group will be assigned to Prolonged Nightly Fasting (PNF) and Health Education videos, the other group will be assigned to Health Education videos.
Primary Purpose
Treatment
Masking
Single (Investigator)
Masking Description
Statistician will also be masked to condition

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
Prolonged Nightly Fasting and Health Education Videos 		Participants in the Prolonge + HED condition will receive both the Prolonged Nightly Fasting and the Health Education Video interventions.
  • Behavioral: Prolonged Nightly Fasting
    At the start of the intervention (week 1) PNF participants will be asked to engage in fasting (14 hours a night, starting no later than 8pm) six nights a week (for the 8-week study duration). Participants will be asked to track their fasting start/stop times on a tracking sheet provided by study staff. During the nightly fast, participants will be allowed to drink water, coffee or tea (without dairy or sweeteners). Study staff will meet with participants via phone for weekly check-in calls (~10-15 mins) to collect weekly fasting start/stop dates/times (entered into REDCap); alternately, participants may elect to email or text their fasting start/stop date/times to the study staff.
  • Behavioral: Health Education Videos
    Provision of HED is a retention strategy and can influence outcomes. Thus, all participants will receive HED. Each week, participants will receive hyperlinks to videos focused on health educational content unrelated to fasting, diet and outcome measures. Participants will be asked to view the videos (~10-15 min) prior to their weekly check-in calls with the study staff (~5-10 mins for HED-Only Control group). They will receive each week's videos on a Monday, and receive a reminder to view on Friday. Study staff will follow a scripted HED weekly check-in call to ensure consistency of data collected. Weekly topics are as follows: W1: Internet safety, W2: Sun safety, W3: Home safety, W4: Driving safety, W5: Hydration, W6: Dental health, W7: Working environment, W8: Communication. Data collected on electronic forms during all participant/staff check-in calls will be stored in participant-specific ASU Dropbox files.
Active Comparator
Health Education Videos Only 		Participants in the Health Education Only condition will participate in only the Health Education Video intervention. Investigators will provide materials about Prolonged Nightly Fasting to these participants at the end of the study.
  • Behavioral: Health Education Videos
    Provision of HED is a retention strategy and can influence outcomes. Thus, all participants will receive HED. Each week, participants will receive hyperlinks to videos focused on health educational content unrelated to fasting, diet and outcome measures. Participants will be asked to view the videos (~10-15 min) prior to their weekly check-in calls with the study staff (~5-10 mins for HED-Only Control group). They will receive each week's videos on a Monday, and receive a reminder to view on Friday. Study staff will follow a scripted HED weekly check-in call to ensure consistency of data collected. Weekly topics are as follows: W1: Internet safety, W2: Sun safety, W3: Home safety, W4: Driving safety, W5: Hydration, W6: Dental health, W7: Working environment, W8: Communication. Data collected on electronic forms during all participant/staff check-in calls will be stored in participant-specific ASU Dropbox files.

Recruiting Locations

Arizona State University
Phoenix, Arizona 85004
Contact:
Jen Project Coordinator
602-496-8248
restorestudy@asu.edu

More Details

Status
Recruiting
Sponsor
Arizona State University

Study Contact

Jen Project Coordinator
602-496-8248
restorestudy@asu.edu

Detailed Description

The purpose of this innovative, remotely-delivered pilot randomized controlled trial (RCT) is to explore the use of an 8-week prolonged nightly fasting (PNF) intervention, as compared to a Health Education-Only (HED-Only) control condition, among ethnically and racially diverse (≥50% Black, Hispanic, and/or Native American) breast cancer survivors (BCSs) with cancer-related cognitive impairment (CRCI) to examine changes in cognitive function, sleep, insomnia and health-related quality of life (i.e., mental and physical). Additionally, intervention feasibility will be assessed among the PNF participants. All participants will receive health education (HED) throughout. BCSs living with CRCI (N=60) will be recruited nationwide and randomized 1:1 into the PNF or HED-Only groups. Linear mixed models will be used to compare outcome changes in the PNF group compared to HED-Only group (Aims 1-3); descriptive and qualitative analyses will be used in the Exploratory Aim.