Global Positioning System (GPS) Exposure to Environments & Relations With Biomarkers of Cancer Risk

Completed

Conditions studied: Physical Activity, Sedentary Lifestyle

In brief

The prevalence of overweight and obesity are increasing worldwide. In the U.S., approximately 85,000 new cancer cases per year are related to obesity. Understanding lifestyle behaviors, their causes, and relations to cancer are critical. Where people spend their time during the day may be related to their risk of getting cancer. This project will assess behaviors in different locations across the day and relate exposure to different environments to biological outcomes.

Key facts

Study ID

NCT02094170

Run by

University of California, San Diego

People needed

601

Starts

2014-07-01

Expected to finish

2017-09-29

Last updated by the study team

2019-06-19

Who can join

Age: 35 and older, up to 80. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• 35 - 80 years
• live in the same residence selected for the study for at least one year
• are able to walk without human assistance
• are able to read and write fluently in English or Spanish
• have a stable phone
• leave their home at least 3 or more times per week
• have a stable weight over the past 3 months (+/- 5 lbs)
• spend most of their time within San Diego County
• will be in San Diego County for the study period (i.e. not travel or border crossing)
• are able to give informed consent and comply with the protocol
• are willing to complete all assessments and wear all devices for 14 days.

You may not qualify if…

• are younger than 435 or older than 80 years of age
• are pregnant or nursing
• have a mental state that would preclude complete understanding of the protocol or compliance
• have a chronic illness that may be associated with weight change
• are participating in another clinical trial
• have type 1 diabetes
• have an autoimmune disorder such as lupus, rheumatoid arthritis, or multiple sclerosis
• have an intestinal disease such as celiac disease, Crohn's disease, or inflammatory bowel disease (IBD) or sensitivities or allergies to gluten
• have psoriasis
• have a history of or a current eating disorder
• have had previous weight loss surgery
• plan to travel into Mexico during the two-week study period or have a history of travel to Mexico
• are taking second generation or "atypical" antipsychotics
• live with someone else who is participating in this study
• are currently taking weight loss supplements and unwilling to stop for a predetermined "wash-out" period

Where it is running

• UC San Diego — La Jolla, California, United States

Full record on ClinicalTrials.gov

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