ClinicalTrials.gg
CompletedNCT02632461DIETMobileUpdated Apr 18, 2019

Dietary Intervention Examining Tracking With Mobile Devices

An interventional study of Podcasts and Mobile Diet Application in Obesity, sponsored by University of South Carolina. Completed at 1 site in United States. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2019-04-18.

Sponsored by University of South Carolina · Not applicable, Interventional, and Other

Phase
Not applicable
Study type
Interventional
Enrollment
81
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The purpose of the study is to test the effectiveness of two different weight loss interventions. Both of these interventions will provide weight loss information through twice weekly audio podcasts. In addition to the podcasts, participants will be asked to track their diet using either a wearable device on their wrist or through an app on their smartphone.

Read the detailed description

This study will last approximately 6 months. Participants will attend one 1-hour orientation meeting at the beginning of the study and a 2-hour baseline assessment and training meeting. Additional assessments will be conducted at 3 months and 6 months. Weekly questionnaires will be administered. Everyone in the study will be asked to listen to 2 podcasts per week. Each of the podcasts will take about 15 - 20 minutes to listen to and so participants should expect to spend 30 - 40 minutes each week listening to podcasts. Participants will also be randomized to either track diet with an app on their smartphone or using a device they wear on their wrist. Each week, participants will be sent an email as a reminder on how to use their diet tracking device. They will also be encouraged to monitor their exercise and body weight.

02

Conditions studied

  • Obesity

Keywords

  • Diet
  • Weight Loss
  • Tracking
  • Calories
03

In context

Obesity

6,570 studies on the registry are indexed under Obesity; 1,718 are open to participants now.

This study's enrollment of 81 is close to the median of 77 across 5,084 interventional studies indexed under Obesity.

Browse Obesity studies →

Lead sponsor

University of South Carolina is the lead sponsor of 196 studies on the registry; 42 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Must be between 18-65 years old
  • Own and use a smartphone and/or a tablet with a data plan
  • BMI must be between 25-49.9 kg/m2
  • Must be willing to reduce caloric intake and increase physical activity
  • Not currently participating in a weight loss study in a weight loss study that involved podcasts

Exclusion criteria

Exclusion Criteria:

  • Over the age of 65 years old
  • Currently participating in a weight loss program
  • Has lost more than 10 pounds in the past 6 months
  • Diagnosed with stroke or heart attack
  • Diagnosed with diabetes that is controlled using medication
05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
81 participants (actual)

Study arms

  • Experimental
    Podcast (+Bite Counter)

    Participants in this group will receive podcasts twice weekly in conjunction with using a wearable wrist device called a Bite Counter. The Bite Counter tracks the number of bites/calories per bite. (Podcasts plus Bite Counter)

    Behavioral: Podcasts · Behavioral: Bite Counter

  • Active comparator
    Podcast (+Mobile App)

    Participants in this group will receive podcasts twice weekly in conjunction with using a mobile application to track their diet. (Podcasts plus Mobile Diet Application)

    Behavioral: Podcasts · Behavioral: Mobile Diet Application

Interventions

  • BehavioralPodcasts

    Participants will receive twice weekly podcasts that will cover topics related to weight loss.

  • BehavioralMobile Diet Application

    Participants will use a mobile application on their smartphone to track their diet.

  • BehavioralBite Counter

    Participants will use a wrist-worn Bite Counter to track the number of bites in their diet per day.

06

What researchers measure

Primary outcomes

  1. Change in body weight as assessed by digital scale

    Change in body weight from baseline to 6 months as assessed by digital scale.

    Time frame: 6 months

07

Study locations

1 site
  • University of South Carolina
    Columbia, South Carolina 29208, United States
08

References and documents

Publications

  • Turner-McGrievy GM, Dunn CG, Wilcox S, Boutte AK, Hutto B, Hoover A, Muth E. Defining Adherence to Mobile Dietary Self-Monitoring and Assessing Tracking Over Time: Tracking at Least Two Eating Occasions per Day Is Best Marker of Adherence within Two Different Mobile Health Randomized Weight Loss Interventions. J Acad Nutr Diet. 2019 Sep;119(9):1516-1524. doi: 10.1016/j.jand.2019.03.012. Epub 2019 May 30. PubMed 31155473 ↗
  • Turner-McGrievy GM, Wilcox S, Boutte A, Hutto BE, Singletary C, Muth ER, Hoover AW. The Dietary Intervention to Enhance Tracking with Mobile Devices (DIET Mobile) Study: A 6-Month Randomized Weight Loss Trial. Obesity (Silver Spring). 2017 Aug;25(8):1336-1342. doi: 10.1002/oby.21889. Epub 2017 Jun 10. PubMed 28600833 ↗

Individual participant data

Plan to share: Undecided

09

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Dec 2015, a primary completion of Aug 2016 and a completion of Sep 2016. It does not say whether these dates are actual or estimated.

How these figures are worked out, and which studies are left out of them.

Registered
Dec 14, 2015
First posted
Dec 16, 2015
Start
Dec 2015
Primary completionActual
Aug 2016
CompletionActual
Sep 2016
Last update
Apr 18, 2019
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 18, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02632461
Responsible party
Brie Turner-McGrievy (Associate Professor, University of South Carolina) — Principal investigator
First posted
Dec 16, 2015
Start date
Dec 2015
Primary completion
Aug 2016
Completion
Sep 2016
Last update
Apr 18, 2019

Study contacts

Brie Turner-McGrievy
principal investigator · University of South Carolina School of Public Health

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2019. You cannot join it, but the record below documents what was studied.

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