NCT07663474

Brief Summary

Restriction of mobile phone use for 2wks and undergo PET scanning for DAT bindinng. Free use of mobile phone use for 2wks and undergo PET scanning for DAT bindinng.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
30

participants targeted

Target at below P25 for not_applicable

Timeline
52mo left

Started May 2026

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress9%
May 2026Dec 2030

Study Start

First participant enrolled

May 1, 2026

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

June 16, 2026

Completed
7 days until next milestone

First Posted

Study publicly available on registry

June 23, 2026

Completed
3.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2029

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2030

Last Updated

June 25, 2026

Status Verified

June 1, 2026

Enrollment Period

3.7 years

First QC Date

June 16, 2026

Last Update Submit

June 22, 2026

Conditions

AddictionSMARTPHONE OWNER

Outcome Measures

Primary Outcomes (1)

  • Dopamine transporter

    PET

    2weeks after intervention

Study Arms (1)

free use for 2weeks + Mobile restriction for 2weeks

EXPERIMENTAL
Device: Mobile phone restrction

Interventions

Mobile phone restrctionDEVICE

Mobile phone restrction for 2 weeks

free use for 2weeks + Mobile restriction for 2weeks

Eligibility Criteria

Age19 Years - 40 Years
Sexall(Gender-based eligibility)
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Healthy subjects with daily use of mobile phone (IPhone)
  • Accessible with "Screentime" application

You may not qualify if:

  • Neuropsychiatric disease
  • Subjects who have medications for mental illness
  • Subjects who cannot undergo PET scans
  • Subjects who cannot participate 4 weeks of this study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Pusan National University Hospital

Busan, Busan, 49241, South Korea

RECRUITING

MeSH Terms

Conditions

Behavior, Addictive

Condition Hierarchy (Ancestors)

Compulsive BehaviorImpulsive BehaviorBehavior

Central Study Contacts

Kyoungjune Pak, MD, PhD

CONTACT

+82-51-240-7389ilikechopin@pusan.ac.kr

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate professor

Study Record Dates

First Submitted

June 16, 2026

First Posted

June 23, 2026

Study Start

May 1, 2026

Primary Completion (Estimated)

December 31, 2029

Study Completion (Estimated)

December 31, 2030

Last Updated

June 25, 2026

Record last verified: 2026-06

Data Sharing

IPD Sharing
Will not share

Locations

KR(1)