A Study of Label Compliance for Attention Deficit/Hyperactivity Disorder (ADHD) Medications in Japan
Public ClinicalTrials.gov record NCT04113551. 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
Attention Deficit/Hyperactivity Disorder (ADHD) Medications in Japan: A Retrospective Cohort Study of Label Compliance
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The purpose of this study is to document the extent of on-label and off-label use of Methylphenidate (MPH) (Concerta), MPH (Ritalin), Atomoxetine (ATO), and Guanfacine (GFC) in Japan.
Study identification
- NCT ID
- NCT04113551
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 17,418 participants
Conditions and interventions
Interventions
- MPH (Concerta) Drug
- MPH (Ritalin) Drug
- Atomoxetine (ATO) Drug
- Guanfacine (GFC) Drug
Drug
Eligibility (public fields only)
- Age range
- Not listed
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Oct 1, 2019 (Actual)
- Primary completion
- Jan 10, 2020 (Actual)
- Completion
- Jan 10, 2020 (Actual)
- Last update posted
- Apr 27, 2025
2019 – 2020
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Janssen Investigative Site | Titusville | New Jersey | 08560 | — |
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 NCT04113551, 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 Apr 27, 2025 · Synced Oct 16, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT04113551 live on ClinicalTrials.gov.