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A Phase 1 Bioequivalence Study of TAK-438 OD tablet

A Randomized, Open-Label, Single-Dose, 2x2 Crossover Phase 1 Study to Evaluate the Bioequivalence of TAK-438 OD (Orally Disintegrating) 20 mg Tablet When Administered without Water (Study 1) or with Water (Study 2) and TAK-438 20 mg Tablet When Administered with Water in Japanese Healthy Volunteer Male Subjects

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT1080224521
Enrollment
48
Registered
2019-01-16
Start date
2019-01-30
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

Japanese healthy adult male

Interventions

investigational material(s) Generic name etc : TAK-438 OD, TAK-438 INN of investigational material : Vonoprazan Therapeutic category code : 239 Other agents affecting digestive organs Dosage and Admin

Sponsors

Takeda Pharmaceutical Company Limited
Lead Sponsor

Eligibility

Sex/Gender
Male

Inclusion criteria

Inclusion criteria: 1. In the opinion of the investigator or sub-investigator, the participant is capable of understanding and complying with protocol requirements. 2. The participant signs and dates a written, informed consent form prior to the initiation of any study procedures. 3. The participant is a healthy Japanese adult male, aged 20 to 60 years, inclusive, at the time of informed consent. 4. The participant weighs at least 50 kg and has a body mass index (BMI) from 18.5 to 25.0 kg/m^2, inclusive at Screening. 5. The participant must be a current nonsmoker who has not used tobacco- or nicotine-containing products (eg, nicotine patch) for at least 6 months prior to the start of study drug administration in Period 1. 6. The participant must be judged to be in good health by the investigator, based on clinical evaluations including laboratory safety tests, medical history, physical examination, 12-lead electrocardiogram (ECG), and vital sign measurements performed at the Screening Visit and prior to the start of study drug administration in Period 1.

Exclusion criteria

Exclusion criteria: 1. The participant has received any investigational compound within 16 weeks (112 days) prior to the start of study drug administration in Period 1. 2. The participant has received TAK-438 in a previous clinical study or as a therapeutic agent. 3. The participant is an immediate family member of or a study site employee, or is in a dependent relationship with a study site employee who is involved in the conduct of this study (eg, spouse, parent, child, sibling) or may consent under duress. 4. The participant has uncontrolled, clinically significant neurologic, cardiovascular, pulmonary, hepatic, renal, metabolic, gastrointestinal, urologic, or endocrine disease or other abnormality (other than the disease being studied), which may impact the ability of the participant to participate in the study or potentially confound its results. 5. The participant has hypersensitivity to any component of TAK-438 OD tablet or TAK-438 tablet. 6. The participant has a positive urine drug result for drugs of abuse at Screening. 7. The participant has a history of drug or alcohol abuse within 2 years prior to the Screening visit or is unwilling to agree to abstain from alcohol and drugs throughout the study. 8. The participant has taken any excluded medication, supplements, or food products during the specified time periods. 9. The participant has current or recent (within 6 months) gastrointestinal disease that would be expected to influence the absorption of drugs (ie, a history of malabsorption, esophageal reflux, peptic ulcer disease, erosive esophagitis), frequent (more than once per week) occurrence of heartburn, or any surgical intervention. 10. The participant has a history of cancer, except basal cell carcinoma which has been in remission for at least 5 years prior to Day 1. 11. The participant has a positive test result for hepatitis B virus surface antigen (HBsAg), hepatitis C virus (HCV) antibody, human immunodeficiency virus (HIV) antibody/antigen, or serological reactions for syphilis at Screening. 12. The participant has poor peripheral venous access. 13. The participant has undergone whole blood collection of at least 200 mL within 4 weeks (28 days) or at least 400 mL within 12 weeks (84 days) prior to the start of study drug administration in Period 1. 14. The participant has undergone whole blood collection of at least 800 mL in total within 52 weeks (364 days) prior to the start of study drug administration in Period 1. 15. The participant has undergone blood component collection within 2 weeks (14 days) prior to the start of study drug administration in Period 1. 16. The participant has a Screening or Check-in (Day -1) ECG that was abnormal (clinically significant). 17. The participant has abnormal Screening laboratory values that suggest a clinically significant underlying disease or participant with the following laboratory abnormalities: alanine aminotransferase (ALT) or aspartate aminotransferase (AST) above the upper limits of normal (ULN). 18. The participant who, in the opinion of the investigator or sub-investigator, is unlikely to comply with the protocol or is unsuitable for any other reason.

Design outcomes

Primary

MeasureTime frame
pharmacokinetics AUClast: Area Under the Concentration-Time Curve from Time 0 to Time of the Last Quantifiable Concentration for TAK-438 Free Base (TAK-438F) Timeframe: Days 1 and 9 pre-dose and at multiple time points (up to 48 hours) post-dose pharmacokinetics Cmax: Maximum Observed Concentration for TAK-438F Timeframe: Days 1 and 9 pre-dose and at multiple time points (up to 48 hours) post-dose

Secondary

MeasureTime frame
pharmacokinetics AUC(infinity): Area Under the Concentration-Time Curve from Time 0 to Infinity for TAK-438F Timeframe: Days 1 and 9 pre-dose and at multiple time points (up to 48 hours) post-dose pharmacokinetics tmax: Time of First Occurrence of Cmax for TAK-438F Timeframe: Days 1 and 9 pre-dose and at multiple time points (up to 48 hours) post-dose pharmacokinetics MRT(infinity, ev): Mean Residence Time after Extravascular Administration from Time 0 to Infinity for TAK-438F Timeframe: Days 1 and 9 pre-dose and at multiple time points (up to 48 hours) post-dose pharmacokinetics Lambda z: Terminal Disposition Phase Rate Constant for TAK-438F Timeframe: Days 1 and 9 pre-dose and at multiple time points (up to 48 hours) post-dose

Countries

Japan

Outcome results

None listed

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