Safety, Tolerability, and Pharmacokinetics of TAK-438 in Healthy Western Male Subjects, Preliminary Food Effect Analysis, and an Ethnic Comparison With Japanese Subjects

NCT ID: NCT02141698

Last Updated: 2014-05-19

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE1
• Total Enrollment: 73 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2007-10-31
• Study Completion Date: 2008-02-29

Brief Summary

The primary purpose of this study was to evaluate the safety, tolerability, and pharmacokinetics of TAK-438 following single or multiple doses of TAK-438 in healthy Western men, to investigate the effect of food on the pharmacokinetics of TAK-438, and to compare the TAK-438 pharmacokinetics of Western with Japanese men.

Detailed Description

The drug being tested in this study is called TAK-438. TAK-438 is being tested to find a safe and well-tolerated dose. This study looked at the pharmacodynamic and pharmacokinetic properties (how the drug moves throughout the body) of the drug and safety (lab results and side effects) in people who took TAK-438.

This study was designed to consist of 4 sequential substudies: a single rising dose study (Cohorts 1 to 7), a food-effect study (Cohort 8), a multiple rising dose study (Cohorts 9 to 11), and a Japanese bridging study (Cohort 12). However, the protocol was halted during the food effect study (Cohort 8) following the discovery of previously unidentified metabolites and as a result, the multiple rising dose (Cohorts 9-11) and ethnicity (Cohort 12) studies were not carried out.

The study population for each of Cohorts 1 to 7 consisted of 9 subjects; with 6 subjects randomized to receive a single dose of TAK-438, and 3 subjects to receive placebo. Subjects in Cohorts 1 to 7 received a single dose of study drug after a 10-hour fast. The starting dose was 1 mg followed by administrations of 5, 10, 20, 15, 40, and 30 mg.

In Cohort 8 the plan was to assign 12 participants in a 2-sequence, 2-period crossover design. Six participants were to receive a single dose of TAK-438 on Day 1, in the fasted state, followed by a second single dose of TAK-438 on Day 15 in the alternative fed state. The other 6 participants were to receive the study drug like-wise but in the fed then fasted state.

To investigate the effect of multiple dosing, a further 3 cohorts (Cohorts 9-11), each comprising 12 participants were to be introduced to the protocol following completion of the single rising dose study. A final cohort, Cohort 12, consisting of 24 Western participants and 24 Japanese participants was to be used to assess the effect of TAK-438 and esomeprazole on the safety, tolerability, pharmacokinetics and pH of the stomach between these 2 ethnic groups.

This single-centre trial was conducted in the United Kingdom.

Conditions

Dose Finding Study

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: TREATMENT
• Blinding Strategy: QUADRUPLE

Study Groups

Cohort 1: TAK-438 1 mg

TAK-438 1 mg, tablets, orally, once on Day 1.

Group Type: EXPERIMENTAL

TAK-438

Intervention Type: DRUG

TAK-438 tablets

Cohort 2: TAK-438 5 mg

TAK-438 5 mg, tablets, orally, once on Day 1.

Group Type: EXPERIMENTAL

TAK-438

Intervention Type: DRUG

TAK-438 tablets

Cohort 3: TAK-438 10 mg

TAK-438 10 mg, tablets, orally, once on Day 1.

Group Type: EXPERIMENTAL

TAK-438

Intervention Type: DRUG

TAK-438 tablets

Cohort 4: TAK-438 20 mg

TAK-438 20 mg, tablets, orally, once on Day 1.

Group Type: EXPERIMENTAL

TAK-438

Intervention Type: DRUG

TAK-438 tablets

Cohort 5: TAK-438 15 mg

TAK-438 15 mg, tablets, orally, once on Day 1.

Group Type: EXPERIMENTAL

TAK-438

Intervention Type: DRUG

TAK-438 tablets

Cohort 6: TAK-438 40 mg

TAK-438 40 mg, tablets, orally, once on Day 1.

Group Type: EXPERIMENTAL

TAK-438

Intervention Type: DRUG

TAK-438 tablets

Cohort 7: TAK-438 30 mg

TAK-438 30 mg, tablets, orally, once on Day 1.

Group Type: EXPERIMENTAL

TAK-438

Intervention Type: DRUG

TAK-438 tablets

Cohort 8A: Food-effect

TAK-438 20 mg, tablets, orally, under fasted conditions, once on Day 1, Period 1, followed by a 13 day washout period, followed by TAK-438 20 mg, tablets, orally, under fed conditions, once on Day 1, Period 2.

Group Type: EXPERIMENTAL

TAK-438

Intervention Type: DRUG

TAK-438 tablets

Cohort 8B: Food-effect

TAK-438 20 mg, tablets, orally, under fed conditions, once on Day 1, Period 1.

Group Type: EXPERIMENTAL

TAK-438

Intervention Type: DRUG

TAK-438 tablets

Cohort 9: TAK-438 Multiple Dose 1

TAK-438 tablet, orally, fixed dose, on Day 1 and Days 8-14. Dose to be determined from data collected in Cohorts 1-7.

Group Type: EXPERIMENTAL

TAK-438

Intervention Type: DRUG

TAK-438 tablets

Cohort 10: TAK-438 Multiple Dose 2

TAK-438 tablet, orally, fixed dose, on Day 1 and Days 8-14. Dose to be determined from data collected in Cohorts 1-7.

Group Type: EXPERIMENTAL

TAK-438

Intervention Type: DRUG

TAK-438 tablets

Cohort 11: TAK-438 Multiple Dose 3

TAK-438 tablet, orally, fixed dose, on Day 1 and Days 8-14. Dose to be determined from data collected in Cohorts 1-7.

Group Type: EXPERIMENTAL

TAK-438

Intervention Type: DRUG

TAK-438 tablets

Cohort 12: Ethnic Bridging

TAK-438 tablets, dose 1, orally, on Days 1-7 of Period 1, followed by a 4-week washout period followed by TAK-438 tablets, dose 2, orally, Days 1-7 of Period 2, followed by a 4-week washout period, followed by esomeprazole tablets, 40 mg, orally, on Days 1-7 of Period 3. TAK-438 doses to be determined from data collected in Cohorts 9-11.

Group Type: EXPERIMENTAL

TAK-438

Intervention Type: DRUG

TAK-438 tablets

Esomeprazole

Intervention Type: DRUG

Esomeprazole tablets

Cohorts 1-7: Placebo

TAK-438 placebo-matching tablets, orally, once on Day 1

Group Type: PLACEBO_COMPARATOR

TAK-438 Placebo

Intervention Type: DRUG

TAK-438 placebo-matching tablets

Cohorts 9-11: Placebo

TAK-438 placebo-matching tablets, orally, once on Day 1, where available, if required.

Group Type: PLACEBO_COMPARATOR

TAK-438 Placebo

Intervention Type: DRUG

TAK-438 placebo-matching tablets

Interventions

TAK-438

TAK-438 tablets

Intervention Type: DRUG

TAK-438 Placebo

TAK-438 placebo-matching tablets

Intervention Type: DRUG

Esomeprazole

Esomeprazole tablets

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

• Male subjects aged 18 to 45, inclusive, who are in good health, as determined by medical history, physical examination, clinical laboratory evaluations and urine drug screen
• The subject has the ability to tolerate the pH probe for 24 hours prior to Randomization (Day 1).

Exclusion Criteria

• Clinically significant history of hypersensitivity to any drug or food or any excipients of TAK-438.
• History of gastroesophageal reflux disease (GERD), symptomatic GERD, erosive esophagitis, duodenal ulcer,gastric ulcer, dyspepsia, Barrett's esophagus, or Zollinger-Ellison syndrome
• The subject has a positive test result for Helicobacter pylori at the Initial Screening Visit.
• Any clinically significant results from physical examinations or clinical laboratory results as deemed by the investigator.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 45 Years
• Eligible Sex: MALE
• Accepts Healthy Volunteers: Yes

Sponsors

Richmond Pharmacology Limited

INDUSTRY

Sponsor Role: collaborator

Takeda

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Medical Director Clinical Science

Role: STUDY_DIRECTOR

Takeda

Other Identifiers

2007-003616-66

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

U1111-1153-8406

Identifier Type: OTHER

Identifier Source: secondary_id

TAK-438_101

Identifier Type: -

Identifier Source: org_study_id