The Healthy Heroes Study

Completed · Not applicable

Conditions studied: Shift Workers' Health, Time Restricted Eating, Fasting

In brief

This is the first study of its kind to assess and test an intervention to improve biological rhythms and general health of shift workers, specifically first responders with San Diego Fire and Rescue. In a randomized control trial, investigators intend to measure the health impact of Time Restricted Eating in emergency responders who work a 24-hour shift schedule.

Key facts

Study ID

NCT03533023

Run by

University of California, San Diego

People needed

153

Starts

2018-05-08

Expected to finish

2021-03-04

Last updated by the study team

2021-08-04

Who can join

Age: 21 and older, up to 65. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Firefighter or work a 24-hr shift schedule with San Diego Fire and Rescue
• Age: 21-65 years
• Own a smartphone (Apple or Android Operating System)
• If participants are on cardiovascular medications (HMG-CoA reductase inhibitors (statins), other lipid modifying drugs (including over the counter drugs such as red yeast rice and fish oil), anti-hypertensive, anti-diabetes drugs), no dose adjustments will be allowed during the study period

You may not qualify if…

• Insulin-dependent diabetes mellitus
• Presence of acute chronic inflammatory or autoimmune disease (defined by acute symptoms or C-reactive protein >10 mg/L), malabsorption syndromes, liver disease, or kidney disease (stage 3 or greater)
• Uncontrolled thyroid disease
• Intake of drugs likely to interfere with study endpoints, including corticosteroids, anabolic steroids, anti-psychotics, antiretroviral drugs, and immunosuppressive drugs (within 3 months of starting the study)
• Presence or recent history of anemia (hematocrit <33% within 3 months of starting the study)
• History of bariatric surgery
• Pregnant or breast-feeding women
• Current or recent (within 12 months of starting the study) pregnancy or breastfeeding, or intention of becoming pregnant in the next 6 months
• Any cancer other than non-melanoma skin cancer in the last 3 years
• On a special or prescribed diet for other reasons (e.g. Celiac disease)
• Depression determined by the Beck Depression Inventory (BDI)
• Planned international travel during study period
• Insufficient logging on the mCC app (does not log at least 2 entries a day for 10 of 14 days) during baseline will exclude from being randomized into the intervention period

Where it is running

• University of California, San Diego — La Jolla, California, United States

Full record on ClinicalTrials.gov

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