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NCT05166226 · ClinicalTrials.gov registry record

PortionSize Study 2 Free-Living Evaluation

A clinical trial of Dietary Habits, sponsored by Pennington Biomedical Research Center.

Active
Registry status
45
Enrollment target
1
Study location

NCT05166226: Active study of Dietary Habits, sponsored by Pennington Biomedical Research Center.

NCT05166226 is a study of Dietary Habits that is active but no longer recruiting, run by Pennington Biomedical Research Center. The registered enrollment target is 45 participants, below the 1,121-participant average among 20 other Dietary Habits trials with a reported enrollment target (96% lower). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT05166226, a study of Dietary Habits, is active but no longer recruiting, sponsored by Pennington Biomedical Research Center.

ACTIVE NOT RECRUITING
Registry status
45 participants
Enrollment target
1
Study location

Study Summary

The objective is to test the accuracy of the PortionSize™ app and the MyFitnessPal© app at measuring energy and nutrient intake in free-living conditions. Participants will use PortionSize™ and MyFitnessPal apps in separate periods to test the accuracy of the respective apps.

Primary Outcome

The primary analyses assessing equivalence between PortionSize™ and the criterion measure (and MyFitnessPal and the criterion measures) will rely on equivalence testing using the Two One-side T-test (TOST) method. The null hypothesis of an equivalence tests is that the means are nonequivalent, i.e., the confidence interval of the mean of the test condition exceeds the pre-specified error bound. The alternative hypothesis is that the means are equivalent, and the mean difference between the exper

Conditions Studied

Dietary Habits

Study Locations (1)

Louisiana

  • Pennington Biomedical Research Center - Baton Rouge

Trial Details

FieldValue
Enrollment Target 45 participants
Start Date 2022-01-10
Est. Completion 2025-12-31
Pennington Biomedical Research Center

258 total trials

What the registry record for NCT05166226 still lists

NCT05166226 is an observational study that tracks outcomes without assigning an intervention. The registry caps enrollment at 45 participants, a relatively small participant target, below the 1,121-participant average among 20 other Dietary Habits trials with a reported enrollment target (96% lower).

The record links to 1 condition, with Dietary Habits appearing as the primary indexed condition, and to 0 interventions.

NCT05166226 reports a single indexed study location in Louisiana.

Frequently Asked Questions

What is clinical trial NCT05166226 about?

NCT05166226 is a clinical study titled "PortionSize Study 2 Free-Living Evaluation". The objective is to test the accuracy of the PortionSize™ app and the MyFitnessPal© app at measuring energy and nutrient intake in free-living conditions. Participants will use PortionSize™ and MyFitnessPal apps in separate periods to test the accuracy of the respective apps.

What is the current status of trial NCT05166226?

This trial is currently active not recruiting. The enrollment target is 45 participants. The study started on 2022-01-10. Estimated completion is 2025-12-31.

What conditions does trial NCT05166226 study?

This clinical trial studies the following conditions: Dietary Habits.

Who is sponsoring clinical trial NCT05166226?

This trial is sponsored by Pennington Biomedical Research Center, which has 258 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT05166226 being conducted?

This trial has 1 study location across Louisiana. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Learn More About Clinical Trials

Similar trials for Dietary Habits

Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.

Where NCT05166226's enrollment target sits among peer trials

45 15th of 20 higher than 6 of 20 other Dietary Habits trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Dietary Habits trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Related registry views

Source: ClinicalTrials.gov NCT05166226, the US trial registry maintained by the National Library of Medicine. NCT05166226 (small enrollment · single site footprint · active not recruiting) retrieved and formatted by PlainTrial, see methodology.