Research Opportunities
Below are our details about the active studies for which we are recruiting participants. If you are interested in finding out more about the study, please contact us with any questions you have, or click directly on the study survey link to enter the preliminary phase of our screening processes. We look forward to hearing from you!
** Filling out any of our study surveys does not obligate you to further participation in the study, nor does it guarantee study enrollment **
Uncovering the Impact of Diet on the Human Circadian Timing System (FACT) (IRB #STUDY00022478)
Study Purpose
We are looking for healthy people aged 18-40 for a study focused on food and the timing of the internal body clock (called the circadian rhythm). We are hoping to find out if differing types of foods change the way the internal body clock responds to different events across the day and night.
Eligibility Criteria**
- Ages 18-40
- Lean (BMI 18.5-24.9kg/m2)
- No history of smoking/tobacco use
- No prescription/non-prescription medications or drugs of abuse
- No acute, chronic, or debilitating medical conditions
** Note that there are additional criteria that are discussed through the screening processes.
Duration of Participation
- 2-5 hospital screening visits (< 8 hours total)
- 1 week at-home screening
- 4 weeks (2 separate weeks) of at-home monitoring eating only investigator-provided meals and maintaining a consistent sleep/wake schedule
- Two, 9-day inpatient stays at OHSU separated ~1 month apart.
Sponsor: National Institute of Health (NIH)
Recruitment End: 03/31/2026
Compensation
Total compensation up to $6400
Completion of initial screening visit = $25
Returning home activity monitoring equipment = $25
At-home meal tracking = $25
Completion of physical exam and psychological screening = $25
Home monitoring portion and at-home diet $100/week = up to $400
Returning home activity monitoring equipment = $25
18 day in-laboratory stay at $300/day = up to $5,400
COVID Test = $25
Entire study completion bonus = $450
Screening
Interested and believe you match the criteria above?
Contact us for access to our preliminary screening survey
Have more questions?
Click here to view a copy of our main consent form that outlines the study in detail. If you have other questions, please contact us for more.
Uncovering Sleep and Circadian Mechanisms Contributing to Adverse Metabolic Health (SAM) (IRB#00025152)
Study Purpose
We are looking for healthy people aged 18-40 for a study focused on sleep duration and metabolism. We are hoping to understand how differing durations of sleep impact how the body metabolizes food.
Eligibility Criteria**
-Ages 18-40
-Lean (BMI 18.5-25 kg/m2)
-No history of smoking/tobacco use
-No prescription/non-prescription medication or drugs of abuse
-No acute, chronic, or debilitating medical conditions
**Note that there are additional criteria that are discusses through the screening processes
Duration of Participation
-2 hospital screening visits (<8 hours total)
-7 consecutive days of at-home monitoring, including 3 days eating only investigator-provided meals
-One, 14-day inpatient stay at OHSU
Sponsor: National Institute of Health (NIH)
Recruitment End: August 31st, 2026
Compensation
Total compensation up to $5,525
Home monitoring portion and at-home diet = up to $125
14-day in-laboratory stay at $350/day = up to $4,900
Entire study completion bonus = $500
Screening
Interested and believe you match the criteria above?
Contact us for access to our preliminary screening survey
Have more questions?
Click here to view a copy of our main consent form that outlines the study in detail. If you have other questions, please contact us for more information.
Circadian Based Time-Restricted Eating Paradigm to Improve Cardiometabolic Health and Prevent Disease (c-TRE) (IRB#STUDY00024761)
Study Purpose
We are looking for healthy individuals that are overweight or obese and aged 18-40 for a study focused on how the timing of when you eat impacts health. We are hoping to find out howmaintaining a diet based on timing, rather than amount or content of calories, improves weight and metabolic health.
Eligibility Criteria**
- Ages 18-40
- Overweight/obese (BMI >27 kg/m2)
- No history of smoking/tobacco use
- No prescription/non-prescription medications or drugs of abuse
- No acute, chronic, or debilitating medical conditions
**Note that these are the basic criteria, and that further eligibility details are described through the screening process.
Placebo Chance
30%
Duration of Participation
-1 evening in-lab visit (~7.5h)
- 4 in-person visits occurring sporadically across 16 weeks (15-30 minutes each)
Sponsor: OHSU School of Nursing (SON)
Recruitment End: 12/01/2023
Compensation
Total compensation up to $350
In-laboratory visit = $70
Baseline Week (Week 0) data collection = $50
Week 1 data collection = $40
Week 5 data collection = $50
Week 10 data collection = $40
Week 16 data collection = $50
Entire study completion bonus = $50
Screening
Interested and believe you match the criteria above?
Until further notice, the screening for this study will be conducted via a phone call with a researcher. Please contact us to schedule a study preliminary screening.
Have more questions?
Click here to view a copy of our main consent form that outlines the study in detail. If you have other questions, please contact us for more.