Clinical Trial Details
— Status: Completed
Administrative data
NCT number |
NCT04836416 |
Other study ID # |
2020-1651 |
Secondary ID |
|
Status |
Completed |
Phase |
|
First received |
|
Last updated |
|
Start date |
April 2, 2021 |
Est. completion date |
December 31, 2022 |
Study information
Verified date |
May 2024 |
Source |
Purdue University |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Observational
|
Clinical Trial Summary
This study will examine appetitive sensation variability and the relationship between
appetitive sensations and energy intake. Investigators believe the methods for assessing and
interpretation of appetitive sensations are problematic and mask the true influence of these
sensations on eating. This limits the development of guidelines for weight management. To
gain a better understanding of the relationship, investigators will track hourly appetite
sensations and map these to eating events via time-series analyses to gain new insights on
the directionality and magnitude of these relationships. Also, investigators will also
examine the association of apetitive ratings with age or gender. This will allow the
development of more effective weight management recommendations.
Description:
Screening - The study will be advertised through various public media sources (social media,
posted flyers, Purdue Today) and a verbal conversation. Participants responding to the
advertisements will be scheduled for a screening visit. This meeting will begin with a full
description of the study, and investigators will secure informed written consent.
Participants will complete questionnaires eliciting demographic (age, biological sex, BMI,
fat%), dietary (eating traits), and health (acute and chronic disease history) information.
Height and weight will be measured. For those choosing to enroll, investigators will obtain
baseline measurements to confirm eligibility. Individuals qualified and volunteering to
participate in the trial will complete multiple questionnaires about eating habits ( Meal
pattern questionnaire, Power of food scale, 0 Study Materials - Appetite Training
Material.pdf 0 Study Materials - ASA24 instruction .pdf 0 Eating Trait questionnaires.pdf 0
Study Materials - Appetite Lexicon Quiz.docx 0 Hourly Appetite and Thirst Ratings.pdf 0 Study
Timeline.pdf Emotional eating scale, Eating inventory, Food craving inventory, Adult eating
behavior scales, Self-regulation of eating behavior questionnaire, Barrot Impulsiveness
scale). Participants will also learn how to record their energy intake through the ASA-24
system. Then, participants will get training on the lexicon of appetite sensations with a
video tutorial, followed by an online quiz to confirm their understanding of the concepts. At
least 90% of correct responses are required to pass the appetite lexicon training. Failure to
satisfactorily convey an understanding of the concepts will result in an offer to repeat the
training two more times or be rejected from the study. Study Procedure - Enrolled
participants will have a virtual meeting with a researcher (E. Cheon) once a week through
Zoom to remind participants about the necessity and method for recording of appetite/thirst
ratings, dietary recalls, and physical activity to be completed during three days (2
non-consecutive weekdays and
1 weekend day). Participants will be asked to report to the laboratory for instruction on
recording appetitive sensations (hunger, fullness, thirst), food intake, physical activity at
baseline (week1), week 9, and 17 on 3 days (2 non-consecutive weekdays and 1 weekend day).
Ratings of hunger, fullness, and thirst will be recorded on their cell phones/computers via a
web-based Qualtrics survey every waking hour for 3 days. All entries are time and date
stamped to ensure the ratings are made at the intended times. Participants will be provided
hourly alarms to ensure regular recording.
Concurrently, participants will keep a diet record with an ASA-24 system and free-living
energy expenditure will be measured using a physical activity tracking application on the
same days of appetite ratings.