Geneva, Jan. 12 -- International Clinical Trials Registry received information related to the study (ChiCTR2500115500) titled 'Populational pharmacokinetics of methylphenidate hydrochloride extended-release tablets in Chinese school-age children with attention-deficit/hyperactivity disorder' on Dec. 26, 2025.

Study Type: Observational study

Study Design: Sequential

Primary Sponsor: Children's Hospital of Chongqing Medical University

Condition: Attention-Deficit Hyperactivity Disorder(ADHD)

Intervention: 18 mg/d group:None

Recruitment Status: Not Recruiting

Phase: N/A

Date of First Enrollment: 2022-04-28

Target Sample Size: 18 mg/d group:30;36 mg/d group:30;

Countries of Recruitment: China

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