Random Assignment of Intervention Messages for Developing Personalized Decision Rules to Promote Physical Activity
Public ClinicalTrials.gov record NCT03907683. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Phase 1 Clinical Trial to Develop a Personalized Adaptive Text Message Intervention Using Control Systems Engineering Tools to Increase Physical Activity in Early Adulthood
Study identification
- NCT ID
- NCT03907683
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 1
- Lead sponsor
- Penn State University
- Other
- Enrollment
- 82 participants
Conditions and interventions
Conditions
Interventions
- Short Message with Text and Optional Image Behavioral
Behavioral
Eligibility (public fields only)
- Age range
- 18 Years to 29 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Apr 2, 2019
- Primary completion
- Jul 20, 2020
- Completion
- Jul 20, 2020
- Last update posted
- Nov 3, 2022
2019 – 2020
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| The Pennsylvania State University | University Park | Pennsylvania | 16802 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03907683, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Nov 3, 2022 · Synced May 13, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03907683 live on ClinicalTrials.gov.