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Evaluation of the Efficacy and Safety of EB-1020 in Adult ADHD Patients

A Phase 2/3, Multicenter, Randomized, Double-blind, Placebo-controlled, Trial to Evaluate the Efficacy and Safety of EB-1020 Once Daily QD XR Capsules Administered Orally at Low or High Dose in Adults With Attention-deficit/Hyperactivity Disorder

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2071250001
Enrollment
630
Registered
2025-04-28
Start date
2025-04-30
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(ADHD)

Interventions

Administer EB-1020 at 164.4 mg or 328.8 mg, or a placebo, orally once daily.

Sponsors

Sanada Nobuhito
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Participants diagnosed primarily with ADHD (excluding other specified or unspecified attention-deficit/hyperactivity disorder) according to DSM-5 criteria, based on information collected through interviews using the Japanese version of the Conners' Adult ADHD Diagnostic Interview for DSM-IVTM (CAADID). 2) Participants with an AISRS total score meeting the following criteria: - Not receiving medication treatment for ADHD: 28 points or higher - Receiving medication treatment for ADHD: 22 points or higher

Exclusion criteria

Exclusion criteria: 1) Participants who are pregnant or breastfeeding, and those who test positive for pregnancy at screening. 2) Participants have a current comorbid psychiatric disorder that either could be expected to require treatment with medications prohibited in this trial, or to confound efficacy or safety assessments. Examples include, but are not limited to, psychotic disorder (current or lifetime), bipolar disorder (current or lifetime), generalized anxiety disorder, obsessive-compulsive disorder, panic disorder, a current major depressive episode, or posttraumatic stress disorder, as established by the MINI. 3) Participants diagnosed with a personality disorder according to DSM-5 criteria. 4) Participants diagnosed with autism spectrum disorder according to DSM-5 criteria. 5) Participants diagnosed with intellectual disability and an IQ score below 70. 6) Participants who, in the judgment of the principal or sub-investigator, or based on the following criteria, are at significant risk of suicide: - Clear suicidal ideation or a history of suicidal behavior (within the past 6 months) as indicated by a ""yes"" answer to questions 4 or 5 in the suicidal ideation section of the C-SSRS Baseline/Screening version at screening. 7) Participants who have a current or past episode of substance-related disorders (excluding tobacco-related disorders) according to DSM-5 diagnostic criteria. 8) Participants diagnosed with eating disorders and feeding disorders according to DSM-5 diagnostic criteria. " 9) Participants who show a positive reaction in alcohol tests or urine drug tests at screening. 10) Participants with complications or a history of the following neurological disorders: - Epilepsy - Seizures (other than infantile febrile seizures) Syncope Tourette's disorder History of significant head trauma with clinically significant loss of consciousness Dementia Cerebrovascular disease Parkinson's disease Intracranial lesions Other severe neurological disorders 11) Participants with complications or a history of cardiovascular diseases. 12) Participants with clinical laboratory test results at screening that meet any of the following criteria: Platelets 2 X ULN ALT > 2 X ULN Creatinine >= 2 mg/dL CPK >= 2 X ULN(except for the cases that the medical monitor determined that participant's inclusion is possible based on the discussion about the participant's condition with the investigator or subinvestigator) Abnormal values for both free T4 and TSH 13) Participants who cannot agree to discontinuation of prohibited concomitant medication, such as ADHD medication or antidepressants.

Design outcomes

Primary

MeasureTime frame
Change from baseline in Adult ADHD Investigator Symptom Rating Scale (AISRS) score at Week6.

Contacts

Public ContactDrug Information Center

Otsuka Pharmaceutical Co., LTD.

opc_ctr@otsuka.jp+81-3-6361-7314

Outcome results

None listed

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