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Tipepidine in children with attention deficit/hyperactivity disorder (AD/HD): a Double-blind, Placebo-controlled Trial

Tipepidine in children with attention deficit/hyperactivity disorder (AD/HD): a Double-blind, Placebo-controlled Trial - Tipepidine in children with attention deficit/hyperactivity disorder (AD/HD): a Double-blind, Placebo-controlled Trial

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000015748
Enrollment
80
Registered
2014-11-25
Start date
2015-01-06
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Attention deficit/hyperactivity disorder (AD/HD)

Interventions

Tipepidine Hibenzate Placebo

Sponsors

Department of Psychiatry, Chiba University School of Medicine
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: (1) Diagnosis of attention deficit hyperactivity disorder besed on DSM-5 criteria. (2) Scores of 20 or higher in ADHD-RS (physician evaluation) total score. (3) currently is an outpatient at Chiba University Hospital Department of Psychiatry or Child Psychiatry. (4) currently receiving no medications for ADHD (atomoxetine, methylphenidate) treatment for the previous 4 weeks prior to enrollment in this study. (5) currently receiving no medications of antidepressants, mood stabilizers and the antipsychotics treatment for the previous 4 weeks prior to enrollment in this study. (6) currently receiving no medications of GIRK channel antagonist (tipepidine, cloperastine, caramiphen) treatment for the previous 4 weeks prior to enrollment in this study. (7) Ages 6 - 17, male or female (8) Provision of written informed consent by patients and parents or guardian. (9) must be able to swallow capsuled medicine.

Exclusion criteria

Exclusion criteria: (1) History of allergic reaction or hypersensitivity to tipepidine hibenzate. (2) Patients who have not been informed of having the disease at the time of informed consent. (3) Diagnosis of any of the following diseases based on the DSM-5 criteria. Autism Spectrum Disorder, Schizophrenia Spectrum and Other Psychotic Disorders, Neurocognitive Disorders, Substance Related and Addictive Disorders, Feeding and Eating Disorders, Personality Disorders, Paraphilic Disorders. (4) currently receiving medications for ADHD (atomoxetine, methylphenidate) treatment for the previous 4 weeks prior to enrollment in this study. (5) currently receiving medications of antidepressants, mood stabilizers and the antipsychotics treatment for the previous 4 weeks prior to enrollment in this study. (6) currently receiving medications of GIRK channel antagonist (tipepidine, cloperastine, caramiphen) treatment for the previous 4 weeks prior to enrollment in this study. (7) Somatic disorder which requires severe body management or severe meal management. (8) participating in another clinical trial within 3 months prior to enrollment into this study. (except for observation study without intervention). (9) planning change of treatment because of unstable neurological manifestations or somatic symptoms. (10) History of suicidal ideation within the past year. (11) pregnant or nursing, or intending to become pregnant or to start breastfeeding during the study. (12) Other clinically significant reasons for exclusion by investigators.

Design outcomes

Primary

MeasureTime frame
Primary Outcome Measure: The ADHD Rating Scale IV Japanese Version (ADHD-RS-IV-J) by physician. Time Frame: Changes from baseline in ADHD-RS-IV-J at 4-weeks

Secondary

MeasureTime frame
Time Frame: Changes from baseline in at 4-weeks of 1-5. 1. Subscores (Inattentive subscore, Hyperactive/impulsive subscore) of the ADHD-RS-IV-J by physician. 2. Total scores and subscores (Inattentive subscore, Hyperactive/impulsive subscore) of the ADHD-RS-IV-J by parents. 3. Total scores and subscores (planning subscore, attention subscore, simultaneous subscore, successive subscore) of DN-CAS (Das-Naglieri Cognitive Assessment System) Japanese Version. 4. Scores of CGI-ADHD-S, CGI-ADHD-I 5. Biologocal markers (Serum levels of Pro-BDNF, Mature-BDNF, Oxytocin)

Countries

Japan

Contacts

Public ContactTsuyoshi Sasaki

Chiba University Hospital Department of Child Psychiatry

sasaki@faculty.chiba-u.jp043-222-7171

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026