NCT06890975Not yet recruiting
"F!reF!ghterF!t": Lifestyle Coaching Interventions for Obese Firefighters (FireFit)
"F!reF!ghterF!t": A Randomized Controlled Trial of Lifestyle Coaching Interventions for Obese Firefighters
Source: ClinicalTrials.gov · Last updated 23 Feb 2026
Brief summary (registry, in English)
Our goal is to explore the effectiveness of 9- month lifestyle medicine based coaching intervention (individual and group coaching) versus control (usual care/ written health instructions). The primary study outcomes will be mean changes in body composition metrics . Secondary outcomes will be the prevalence of metabolic abnormities, progression/regression of Metabolic Syndrome, push-up \& sit/stand capacity, self-reported physical activity, and quality of life/diet/sleep measures.
- Status (registry)
- Not yet recruiting
- Study type
- Interventional
- Enrollment
- 50 (estimated)
- First submitted
- 12 Mar 2025
- Start date
- 21 Apr 2026
- Primary completion date
- 31 Oct 2026
- Lead sponsor
- Cambridge Health Alliance
- Diseases
- Obesity
- NCT number
- NCT06890975
What you commit to
- Study type: Interventional
- Planned participants: 50
- From 21 Apr 2026 to the primary completion date, 31 Oct 2026
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Current or recent (within 6 months) use of testosterone treatment or anti-obesity/obesogenic medications
Lab values
- History or diagnosis (during the RCT) of any of the following:
- Major cardiovascular disease event (e.g., myocardial infarction, cardiac arrest, cerebrovascular accident) Cancer (excluding non-melanoma skin cancer) Abnormal liver function (aminotransferase, bilirubin, or alkaline phosphatase ≥3× the upper limit of normal) Renal dysfunction (estimated glomerular filtration rate ≤30 mL/min/1.73 m²)
Other
- Female sex\*
- BMI \<30 kg/m² based on self-reported height and weight
- Active psychosis
- Unwillingness to adhere to potential intervention assignments
- Because this is an exploratory study, the number of subjects is limited, and men make up roughly 85% of the US fire service, the current proposal is limited to men. In future studies, we will include women firefighters.
Who the study is looking for
- Male firefighters aged 18-60 years
- Currently active as volunteer or career firefighters
- Body mass index (BMI) ≥30 kg/m² based on self-reported height and weight
- Express interest in participating in a clinical study aimed at improving body composition (weight loss), metabolic status, and quality of life
- Residing and/or working in Massachusetts, Rhode Island, or Southern New Hampshire (Boston metro area)
Age in the registry: 18 years to 60 years · Sex: Male · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Cambridge Health Alliance Coordinator of this site? Confirm its status | Sommerville | United States | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.