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A Study of OPC-41061 Orally Disintegrating (OD) Tablets Using 2 Different Formulations and 2 Dosing Regimens in Healthy Adult Male Subjects

A Single-center, Open-label, Randomized, 3-Period, 3-Way, Crossover Bioequivalence Study of OPC-41061 Orally Disintegrating (OD) Tablets Using 2 Different Formulations and 2 Dosing Regimens in Healthy Adult Male Subjects

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT1080223416
Enrollment
84
Registered
2016-12-19
Start date
2017-01-06
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

Healthy adult male

Interventions

investigational material(s) Generic name etc : Tolvaptan OD tablet INN of investigational material : Tolvaptan Therapeutic category code : 213 Diuretics Dosage and Administration for Investigational m

Sponsors

Otsuka Pharmaceutical Co., Ltd.
Lead Sponsor

Eligibility

Sex/Gender
Male

Inclusion criteria

Inclusion criteria: - Body weight of at least 50.0 kg - BMI [body weight in kg / (height in m)2] of at least 17.6 kg/m2 and less than 25.0 kg/m2 - Judged by the investigator or subinvestigator to be capable of providing written informed consent prior to the start of any trial-related procedures and capable of complying with the trial procedures for this study.

Exclusion criteria

Exclusion criteria: - Judged by the investigator, subinvestigator, or sponsor to have a clinically significant abnormality in results of the screening examination (including a notable deviation from the site's standard values) or a medical history that could place the subject at risk or affect the evaluation of drug absorption, distribution, metabolism, or excretion - History of alcohol or drug dependence or abuse within 2 years prior to the trial - History or current infection with hepatitis or acquired immunodeficiency syndrome (AIDS) or carrier of hepatitis B positive surface antigen (HBsAg), anti-hepatitis C virus (HCV), human immunodeficiency virus (HIV), or syphilis based on the results of the Treponema pallidum (TP) antibody test or rapid plasma reagin (RPR) test - History of any severe drug allergy - Positive results in alcohol screening test or urine drug screening test at time of screening examination or trial site admission - Use of any other investigational medicinal product (IMP) within 120 days prior to Period 1 IMP administration - Consumption of any food or beverage containing St. John's wort within 14 days prior to Period 1 IMP administration - Consumption of any food or beverage containing grapefruit, Seville orange, or star fruit within 7 days prior to Period 1 IMP administration - Judgment by the investigator or subinvestigator that the subject should not participate in the study for any other reason.

Design outcomes

Primary

MeasureTime frame
bioequivalence AUCt and Cmax of tolvaptan

Countries

Japan

Outcome results

None listed

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