JITAIs: Optimization of Effectiveness

NCT05773625 | Completed

• 1 other identifier: 555003027
• Study Type: interventional
• Target: 14
• Locations: 1 country
• Sites: 1

Brief Summary

The goal of this feasibility study is to get insight into the receptivity of a JITAI aimed at healthy dietary intake in inhabitants of a small city in the Netherlands. The main question it aims to answer is: • what is the right time and the right location to send notifications to people and for what type of interventions are people most receptive? Furthermore, the aim is to get insight into the relevance and usability of the app, the privacy concerns that people have and the perceived effectiveness of the app on dietary intake. Participants will test our app for 2 weeks, of which they will receive prompts during one week.

Conditions

Eating Behavior; Chronic Disease

Outcome Measures

Primary Outcomes (1)

• Receptivity

  The receptiveness is measured with short questions after each prompt on whether the prompt is opportune. Questions on receptiveness are send after every prompt during one week (second week of the study). Dependent on how many locations people visit at which they receive a prompt.

  Receptivity is measured during one week, after every prompt

Secondary Outcomes (1)

• Movement patterns

  Location is stored every 5 seconds during two weeks.

Study Arms (1)

Test group of app

OTHER

All participants will first use the app one week without receiving just-in-time notifications. Their movement patterns are collected through GPS. In the second week, they will receive just-in-time notifications based on their chosen goal. Participants will act as their own control group.

Device: Just-In-Time Adaptive Intervention

Interventions

Just-In-Time Adaptive Intervention DEVICE

Participants will be exposed to a new innovative app to test.

Test group of app

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Open or motivated to improve their eating behaviour (as this is the target group of the final developed app)
• Older than 18 years old
• Living in Wageningen
• Is able to understand and speak Dutch
• Having an Android phone

You may not qualify if:

• Does not have a specific goal to improve eating behaviour
• Is under 18 years old
• Does not live in Wageningen
• Does not speak and/or understand Dutch
• Does not have an android phone

Sponsors & Collaborators

• Wageningen University and Research: lead
• ZonMw: The Netherlands Organisation for Health Research and Development: collaborator

Study Sites (1)

Wageningen University and Research

Wageningen, Netherlands

Location

MeSH Terms

Conditions

Feeding Behavior; Chronic Disease

Condition Hierarchy (Ancestors)

Behavior, Animal; Behavior; Disease Attributes; Pathologic Processes; Pathological Conditions, Signs and Symptoms

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: OTHER
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Researcher and lecturer

Study Record Dates

• First Submitted: January 12, 2023
• First Posted: March 17, 2023
• Study Start: January 1, 2023
• Primary Completion: June 30, 2023
• Study Completion: June 30, 2023
• Last Updated: December 13, 2023

Record last verified: 2023-12

Data Sharing

• IPD Sharing: Will not share

Locations

NL (1)