- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05107908
Neuronal and Behavioral Effects of an Implicit Priming Approach to Improve Eating Behaviors in Obesity
February 2, 2024 updated by: University of Colorado, Denver
The purpose of this study is to determine how different behavioral interventions designed to alter food perceptions and behaviors affect brain responses to food, eating behaviors, and body weight.
Study Overview
Status
Recruiting
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment (Estimated)
228
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: Christina Erpelding, BS
- Phone Number: 303-724-8502
- Email: christina.erpelding@cuanschutz.edu
Study Contact Backup
- Name: Kristina Legget, PhD
- Phone Number: 303-724-5809
- Email: kristina.legget@cuanschutz.edu
Study Locations
-
-
Colorado
-
Aurora, Colorado, United States, 80045
- Recruiting
- University of Colorado Anschutz Medical Campus
-
Contact:
- Christina Erpelding, BS
- Phone Number: 303-724-8502
- Email: christina.erpelding@cuanschutz.edu
-
Contact:
- Kristina Legget, PhD
- Phone Number: 303-724-5809
- Email: kristina.legget@cuanschutz.edu
-
Principal Investigator:
- Jason Tregellas, PhD
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years to 65 years (Adult, Older Adult)
Accepts Healthy Volunteers
Yes
Description
Inclusion Criteria:
- 18-65 years old
- BMI of 27 or greater
Exclusion Criteria:
- MRI contraindications (e.g., metal or electronic devices in the body)
- Pregnancy
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Active Implicit Priming
Participants will complete active implicit priming, in which food images are implicitly primed (i.e., below conscious awareness) with images of positive or negative affect.
This will be completed on a weekly basis for 12 weeks, for approximately 10 minutes each time.
|
Approximately 10-minute behavioral intervention
|
Placebo Comparator: Control Implicit Priming
Participants will complete control implicit priming, which matches the active intervention, but with neutral stimuli as primes.
This will be completed on a weekly basis for 12 weeks, for approximately 10 minutes each time.
|
Approximately 10-minute behavioral intervention
|
Active Comparator: Food Exposure Task
Participants will complete a Food Exposure Task, in which they will be asked to smell, feel, lick, and imagine eating food items, but without actually eating them.
This will be completed on a weekly basis for 12 weeks, for approximately 10-30 minutes each time.
|
Approximately 10-30 minute behavioral intervention
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Percent Change in Blood Oxygen Level Dependent (BOLD) Response to Visual Food Cues as Measured by Functional Magnetic Resonance Imaging
Time Frame: Baseline, 12 weeks
|
Percent change in blood oxygen level dependent (BOLD) response from baseline to after the 12-week intervention while viewing visual food cues will be measured using functional magnetic resonance imaging (fMRI), focusing on insula, striatum, and prefrontal cortex.
|
Baseline, 12 weeks
|
Change in Food Image Ratings
Time Frame: Baseline, 12 weeks
|
Food image ratings change from baseline to after the 12-week intervention.
Food images are rated on "desire to eat" by visual analogue scale (0-100), with higher scores indicating greater desire to eat.
|
Baseline, 12 weeks
|
Change in Food Intake
Time Frame: Baseline, 12 weeks
|
Food intake change from baseline to after the 12-week intervention.
Food intake will be measured as total calories consumed during an ad libitum meal.
|
Baseline, 12 weeks
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Percent Change in Body Weight
Time Frame: Baseline, 12 weeks
|
Percent change in body weight (kg) from baseline to after the 12-week intervention.
|
Baseline, 12 weeks
|
Change in Fat Mass
Time Frame: Baseline, 12 weeks
|
Change in fat mass, as measured using dual-energy x-ray absorptiometry, from baseline to after the 12-week intervention.
|
Baseline, 12 weeks
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Jason Tregellas, PhD, University of Colorado, Denver
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
November 12, 2021
Primary Completion (Estimated)
December 1, 2025
Study Completion (Estimated)
December 1, 2025
Study Registration Dates
First Submitted
November 3, 2021
First Submitted That Met QC Criteria
November 3, 2021
First Posted (Actual)
November 4, 2021
Study Record Updates
Last Update Posted (Estimated)
February 5, 2024
Last Update Submitted That Met QC Criteria
February 2, 2024
Last Verified
February 1, 2024
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 20-2821
- R01DK125417 (U.S. NIH Grant/Contract)
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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