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Phase 1 Study of TAK-831 in Healthy Adult Asian Subjects

Randomized, Double-Blind, Placebo-Controlled, Phase 1 Study to Evaluate Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Single and Multiple Doses of TAK 831 in Healthy Adult Asian Subjects

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03687684
Enrollment
40
Registered
2018-09-27
Start date
2018-10-09
Completion date
2019-06-19
Last updated
2021-06-14

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

Conditions

Healthy Volunteers

Brief summary

The purpose of this study is to evaluate safety, tolerability, pharmacokinetics, and pharmacodynamics of TAK-831 when administered as single or multiple oral doses in healthy adult Asian participants.

Detailed description

The drug being tested in this study is called TAK-831. This study will assess the safety, tolerability, pharmacokinetics (PK), and Pharmacodynamics (PD) of TAK-831 when administered as single or multiple oral doses in healthy adult Asian participants (Japanese and Chinese participants). The study will enroll approximately 40 participants and include up to 5 cohorts of healthy adult Japanese or Chinese participants as following (8 participants per a cohort). Cohorts 3, 4 and 5 are optional and will be decided to run based on the data of Cohorts 1 and 2. Dose level for these cohorts will be defined based on the result of Cohort 1 or Cohort 2. * Japanese Cohort 1-A; TAK-831 100 mg single dose + TAK-831 300 mg single dose * Japanese Cohort 1-B; TAK-831 100 mg single dose + Placebo single dose * Japanese Cohort 1-C; Placebo single dose + TAK-831 300 mg single dose * Japanese Cohort 2; TAK-831 300 mg or TAK-831 matching placebo, single dose + TAK-831 300 mg or TAK-831 matching placebo, multiple dose \* * Chinese Cohort 3; TAK-831 600 mg or TAK-831 matching placebo, single dose + TAK-831 600 mg or TAK-831 matching placebo, multiple dose * Japanese Cohort 4; TAK-831 600 mg or TAK-831 matching placebo, single dose + TAK-831 600 mg or TAK-831 matching placebo, multiple dose * Japanese Cohort 5; TAK-831 50 mg or TAK-831 matching placebo, single dose + TAK-831 50 mg or TAK-831 matching placebo, multiple dose \*The dose in Cohort 2 will be adjusted based on the safety and tolerability as well as PK and PD in Cohort 1. Above all treatment, randomization information will remain undisclosed to the participant and study doctor during the study (unless there is an urgent medical need) and TAK-831 will be administered orally. This single center trial will be conducted in Japan. The overall time to participate in Cohort 1 of this study is approximately 12 days and 19 days in Cohorts 2 to 5. 11 days (for Cohort 1) or 12 days (for Cohorts 2 to 5) after last dose of study drug, participants will be contacted by telephone for a follow-up assessment unless abnormal, clinically significant findings are observed upon discharge.

Interventions

TAK-831 Tablets.

DRUGPlacebo

TAK-831 Matching Placebo Tablets.

Sponsors

Takeda
CollaboratorINDUSTRY
Neurocrine Biosciences
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
OTHER
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
20 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

1. The participant must understand the study procedures and agree to participate by providing written informed consent (for Chinese participants, an interpreter should be present as necessary). 2. The participant must be willing and able to comply with all study procedures and restrictions. 3. The participant must be male or female (of nonchildbearing potential) aged 20 to 55 years, inclusive, at the Screening. 4. The participant must have a body mass index (BMI) \>=18.5 kg/m\^2 and =\<25.0 kg/m\^2 at the Screening. 5. The participant must be a current nonsmoker who has not used tobacco- or nicotine-containing products (e.g., nicotine patch) for at least 6 months prior to the Screening. 6. Chinese participants are defined as participants who were born in mainland China, and their biological parents and grandparents must all have been of Chinese origin (for Cohort 3 only). 7. Chinese participants who have lived out of China for more than 5 years must not have significantly modified their diets since leaving China (for Cohort 3 only). 8. The participant must be judged to be in good health by the investigator, based on clinical evaluations including laboratory tests, medical history, full physical examination, 12-lead electrocardiogram, and vital sign measurements performed at the Screening and prior to the first dose of study drug. 9. The participant must meet the birth control requirements.

Exclusion criteria

1. The participant has a history of clinically significant endocrine, gastrointestinal (including motility disorder and intestinal obstruction), cardiovascular, hematological, hepatic, immunological, renal, respiratory, or genitourinary, or presents with major neurological (including stroke and chronic seizures) abnormalities or diseases. 2. The participant has participated in another investigational trial within 4 weeks before the pretrial visit (Screening). The 4-week window will be derived from the date of the last trial procedure and/or adverse event (AE) related to the trial procedure in the previous trial to the Screening Visit of the current trial. 3. The participant is an employee or immediate family member (e.g., spouse, parent, child, sibling) of the sponsor. 4. The participant has a history of cancer (malignancy). 5. The participant has a history of significant multiple and/or severe allergies (e.g., food, drug, latex allergy) or has had an anaphylactic reaction or significant intolerability to prescription or nonprescription drugs or food. 6. The participant has a positive alcohol or drug or immunological screen. 7. The participant is of childbearing potential or lactating. 8. The participant had major surgery, received or lost 1 unit of blood (approximately 500 milliliters \[mL\]) within 8 weeks prior to the first dose of study drug. 9. The participant with any gastrointestinal (GI) surgery that could impact upon the absorption of study drug. 10. The participant has a known hypersensitivity to any component of the formulation of TAK-831 or related compounds. 11. The participant is unable to refrain from or anticipates the use of any medication, including prescription and nonprescription drugs or herbal remedies, beginning approximately 7 days before administration of the initial dose of trial drug, throughout the trial (including washout intervals between trial periods), until the Follow-up Visit. 12. The participant has a history of alcohol consumption exceeding 2 standard drinks per day on average (1 glass is approximately equivalent to: beer \[354 mL/12 ounces\], wine \[118 mL/4 ounces\], or distilled spirits \[29.5 mL/1 ounce\] per day). 13. The participant who consumes excessive amounts, defined as greater than 6 servings (1 serving is approximately equivalent to 120 mg of caffeine) of coffee, tea, cola, energy drinks, or other caffeinated beverages per day. 14. The participant has a history of drug abuse. 15. The participant has a (QT interval with Fridericia's correction method) QTcF \>450 milliseconds (msec) (males) or \>470 msec (females) or PR outside the range of 120 to 220 msec at the Screening Visit or Check-in.

Design outcomes

Primary

MeasureTime frame
Number of Participants Reporting at Least One Treatment-emergent Adverse Event (TEAE)Cohort 1: Baseline up to Day 23; Cohorts 2-5: Baseline up to Day 31
Number of Participants Reporting at Least One TEAE Related to Laboratory Test ResultsCohort 1: Baseline up to Day 23; Cohorts 2-5: Baseline up to Day 31
Number of Participants Reporting at Least One TEAE Related to Vital SignCohort 1: Baseline up to Day 23; Cohorts 2-5: Baseline up to Day 31
Number of Participants Reporting at Least One TEAE Related to Body WeightCohort 1: Baseline up to Day 23; Cohorts 2-5: Baseline up to Day 31
Number of Participants Reporting at Least One TEAE Related to 12-lead Electrocardiogram (ECG) ParametersCohort 1: Baseline up to Day 23; Cohorts 2-5: Baseline up to Day 31

Secondary

MeasureTime frame
Cmax: Maximum Observed Plasma Concentration for TAK-831Cohort 1: Day 1 pre-dose and at 0.5, 1, 1.5, 2, 4, 8, 12, 24, 36, 48 and 72 hours post-dose; Cohorts 2 to 5: Day 1 pre-dose and at 0.25, 0.5, 1, 1.5, 2, 4, 8, 12, 24, 36, 48 and 72 hours post-dose
Cohorts 2 to 5, AUCtau: Area Under the Plasma Concentration-time Curve From Time 0 to [Time] Over the Dosing Interval for TAK-831Day 1: pre-dose and at 0.25, 0.5, 1, 1.5, 2, 4, 8, 12, 24, 36, 48 and 72 hours post-dose and Day 17: pre-dose and at 0.25, 0.5, 1, 1.5, 2, 4, 8, 12, and 24 hours post-dose
Cohorts 2 to 5, Cmax, ss: Maximum Observed Steady-state Plasma Concentration During a Dosing Interval for TAK-831Day 17 pre-dose and at 0.25, 0.5, 1, 1.5, 2, 4, 8, 12 and 24 hours post-dose
Tmax: Time to Reach the Maximum Plasma Concentration (Cmax) for TAK-831Cohort 1: Day 1 pre-dose, 0.5, 1, 1.5, 2, 4, 8, 12, 24, 36, 48, 72 hours post-dose; Cohorts 2 to 5: Day 1 pre-dose, 0.25, 0.5, 1, 1.5, 2, 4, 8, 12, 24, 36, 48, 72 hours post-dose; Day 17 pre-dose, 0.25, 0.5, 1, 1.5, 2, 4, 8, 12, 24 hours post-dose
AUClast: Area Under the Plasma Concentration-time Curve (AUC) From Time 0 to Time of the Last Quantifiable Concentration for TAK-831Cohort 1: Day 1 pre-dose and at 0.5, 1, 1.5, 2, 4, 8, 12, 24, 36, 48 and 72 hours post-dose; Cohorts 2 to 5: Day 1 pre-dose and at 0.25, 0.5, 1, 1.5, 2, 4, 8, 12, 24, 36, 48 and 72 hours post-dose
AUC∞: Area Under the Plasma Concentration-time Curve From Time 0 to Infinity for TAK-831Cohort 1: Day 1 pre-dose and at 0.5, 1, 1.5, 2, 4, 8, 12, 24, 36, 48 and 72 hours post-dose; Cohorts 2 to 5: Day 1 pre-dose and at 0.25, 0.5, 1, 1.5, 2, 4, 8, 12, 24, 36, 48 and 72 hours post-dose

Countries

Japan

Participant flow

Recruitment details

Participants took part in the study at single site in Japan from 09 October 2018 to 19 June 2019.

Pre-assignment details

Healthy adult participants were randomized to receive TAK-831: under 3-sequential dose escalation design to the sequence of administration of A (100 mg +300 mg), B (100 mg + Placebo), and C (Placebo + 300 mg) in Cohort 1 (Japanese); single dose followed by multiple dose of TAK-831 or Placebo in Cohorts 2, 4, 5 (Japanese) and in Cohort 3 (Chinese).

Participants by arm

ArmCount
Japanese Cohort 1-A: TAK-831 100 mg + TAK-831 300 mg
TAK-831 100 mg, tablet, orally, once on Day 1 of Part 1, followed by TAK-831 300 mg, tablet, orally, once on Day 1 (Day 9) of Part 2 in healthy Japanese participants.
4
Japanese Cohort 1-B: TAK-831 100 mg + Placebo
TAK-831 100 mg, tablet, orally, once on Day 1 of Part 1 followed by TAK-831 matching placebo, tablet, orally, once on Day 1 (Day 9) of Part 2 in healthy Japanese participants.
2
Japanese Cohort 1-C: Placebo + TAK-831 300 mg
TAK-831 matching placebo, tablet, orally, once on Day 1 of Part 1 followed by TAK-831 300 mg, tablet, orally, once on Day 1 (Day 9) of Part 2 in healthy Japanese participants.
2
Japanese Cohort 2, 4 and 5: Pooled Placebo
TAK-831 matching placebo, tablet, orally, once on Day 1 and once daily from Day 4 to Day 17 in healthy Japanese participants.
6
Japanese Cohort 2: TAK-831 300 mg
TAK-831 300 mg, tablet, orally, once on Day 1 and once daily from Day 4 to Day 17 in healthy Japanese participants.
6
Japanese Cohort 4: TAK-831 600 mg
TAK-831 600 mg, tablet, orally, once on Day 1 and once daily from Day 4 to Day 17 in healthy Japanese participants.
6
Japanese Cohort 5: TAK-831 50 mg
TAK-831 50 mg, tablet, orally, once on Day 1 and once daily from Day 4 to Day 17 in healthy Japanese participants.
6
Chinese Cohort 3: Placebo
TAK-831 matching placebo, tablet, orally, once on Day 1 and once daily from Day 4 to Day 17 in healthy Chinese participants.
2
Chinese Cohort 3: TAK-831 600 mg
TAK-831 600 mg, tablet, orally, once on Day 1 and once daily from Day 4 to Day 17 in healthy Chinese participants.
6
Total40

Baseline characteristics

CharacteristicTotalJapanese Cohort 1-B: TAK-831 100 mg + PlaceboJapanese Cohort 1-C: Placebo + TAK-831 300 mgJapanese Cohort 1-A: TAK-831 100 mg + TAK-831 300 mgJapanese Cohort 2, 4 and 5: Pooled PlaceboJapanese Cohort 2: TAK-831 300 mgJapanese Cohort 4: TAK-831 600 mgJapanese Cohort 5: TAK-831 50 mgChinese Cohort 3: PlaceboChinese Cohort 3: TAK-831 600 mg
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
40 Participants2 Participants2 Participants4 Participants6 Participants6 Participants6 Participants6 Participants2 Participants6 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
40 Participants2 Participants2 Participants4 Participants6 Participants6 Participants6 Participants6 Participants2 Participants6 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Region of Enrollment
Japan
40 Participants2 Participants2 Participants4 Participants6 Participants6 Participants6 Participants6 Participants2 Participants6 Participants
Sex: Female, Male
Female
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Sex: Female, Male
Male
40 Participants2 Participants2 Participants4 Participants6 Participants6 Participants6 Participants6 Participants2 Participants6 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
EG008
affected / at risk
deaths
Total, all-cause mortality
0 / 40 / 60 / 60 / 60 / 60 / 60 / 60 / 20 / 6
other
Total, other adverse events
0 / 42 / 60 / 64 / 64 / 61 / 62 / 61 / 22 / 6
serious
Total, serious adverse events
0 / 40 / 60 / 60 / 60 / 60 / 60 / 60 / 20 / 6

Outcome results

Primary

Number of Participants Reporting at Least One TEAE Related to 12-lead Electrocardiogram (ECG) Parameters

Time frame: Cohort 1: Baseline up to Day 23; Cohorts 2-5: Baseline up to Day 31

Population: The safety analysis set was defined as all participants who received at least one dose of study drug.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Japanese Cohort 1: PlaceboNumber of Participants Reporting at Least One TEAE Related to 12-lead Electrocardiogram (ECG) Parameters0 Participants
Japanese Cohort 1: TAK-831 100 mgNumber of Participants Reporting at Least One TEAE Related to 12-lead Electrocardiogram (ECG) Parameters0 Participants
Japanese Cohort 1: TAK-831 300 mgNumber of Participants Reporting at Least One TEAE Related to 12-lead Electrocardiogram (ECG) Parameters0 Participants
Japanese Cohort 2, 4 and 5: Pooled PlaceboNumber of Participants Reporting at Least One TEAE Related to 12-lead Electrocardiogram (ECG) Parameters0 Participants
Japanese Cohort 2: TAK-831 300 mgNumber of Participants Reporting at Least One TEAE Related to 12-lead Electrocardiogram (ECG) Parameters0 Participants
Japanese Cohort 4: TAK-831 600 mgNumber of Participants Reporting at Least One TEAE Related to 12-lead Electrocardiogram (ECG) Parameters0 Participants
Japanese Cohort 5: TAK-831 50 mgNumber of Participants Reporting at Least One TEAE Related to 12-lead Electrocardiogram (ECG) Parameters0 Participants
Chinese Cohort 3: PlaceboNumber of Participants Reporting at Least One TEAE Related to 12-lead Electrocardiogram (ECG) Parameters0 Participants
Chinese Cohort 3: TAK-831 600 mgNumber of Participants Reporting at Least One TEAE Related to 12-lead Electrocardiogram (ECG) Parameters0 Participants
Primary

Number of Participants Reporting at Least One TEAE Related to Body Weight

Time frame: Cohort 1: Baseline up to Day 23; Cohorts 2-5: Baseline up to Day 31

Population: The safety analysis set was defined as all participants who received at least one dose of study drug.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Japanese Cohort 1: PlaceboNumber of Participants Reporting at Least One TEAE Related to Body Weight0 Participants
Japanese Cohort 1: TAK-831 100 mgNumber of Participants Reporting at Least One TEAE Related to Body Weight0 Participants
Japanese Cohort 1: TAK-831 300 mgNumber of Participants Reporting at Least One TEAE Related to Body Weight0 Participants
Japanese Cohort 2, 4 and 5: Pooled PlaceboNumber of Participants Reporting at Least One TEAE Related to Body Weight0 Participants
Japanese Cohort 2: TAK-831 300 mgNumber of Participants Reporting at Least One TEAE Related to Body Weight0 Participants
Japanese Cohort 4: TAK-831 600 mgNumber of Participants Reporting at Least One TEAE Related to Body Weight0 Participants
Japanese Cohort 5: TAK-831 50 mgNumber of Participants Reporting at Least One TEAE Related to Body Weight0 Participants
Chinese Cohort 3: PlaceboNumber of Participants Reporting at Least One TEAE Related to Body Weight0 Participants
Chinese Cohort 3: TAK-831 600 mgNumber of Participants Reporting at Least One TEAE Related to Body Weight0 Participants
Primary

Number of Participants Reporting at Least One TEAE Related to Laboratory Test Results

Time frame: Cohort 1: Baseline up to Day 23; Cohorts 2-5: Baseline up to Day 31

Population: The safety analysis set was defined as all participants who received at least one dose of study drug.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Japanese Cohort 1: PlaceboNumber of Participants Reporting at Least One TEAE Related to Laboratory Test Results0 Participants
Japanese Cohort 1: TAK-831 100 mgNumber of Participants Reporting at Least One TEAE Related to Laboratory Test Results2 Participants
Japanese Cohort 1: TAK-831 300 mgNumber of Participants Reporting at Least One TEAE Related to Laboratory Test Results0 Participants
Japanese Cohort 2, 4 and 5: Pooled PlaceboNumber of Participants Reporting at Least One TEAE Related to Laboratory Test Results2 Participants
Japanese Cohort 2: TAK-831 300 mgNumber of Participants Reporting at Least One TEAE Related to Laboratory Test Results2 Participants
Japanese Cohort 4: TAK-831 600 mgNumber of Participants Reporting at Least One TEAE Related to Laboratory Test Results1 Participants
Japanese Cohort 5: TAK-831 50 mgNumber of Participants Reporting at Least One TEAE Related to Laboratory Test Results1 Participants
Chinese Cohort 3: PlaceboNumber of Participants Reporting at Least One TEAE Related to Laboratory Test Results1 Participants
Chinese Cohort 3: TAK-831 600 mgNumber of Participants Reporting at Least One TEAE Related to Laboratory Test Results0 Participants
Primary

Number of Participants Reporting at Least One TEAE Related to Vital Sign

Time frame: Cohort 1: Baseline up to Day 23; Cohorts 2-5: Baseline up to Day 31

Population: The safety analysis set was defined as all participants who received at least one dose of study drug.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Japanese Cohort 1: PlaceboNumber of Participants Reporting at Least One TEAE Related to Vital Sign0 Participants
Japanese Cohort 1: TAK-831 100 mgNumber of Participants Reporting at Least One TEAE Related to Vital Sign0 Participants
Japanese Cohort 1: TAK-831 300 mgNumber of Participants Reporting at Least One TEAE Related to Vital Sign0 Participants
Japanese Cohort 2, 4 and 5: Pooled PlaceboNumber of Participants Reporting at Least One TEAE Related to Vital Sign1 Participants
Japanese Cohort 2: TAK-831 300 mgNumber of Participants Reporting at Least One TEAE Related to Vital Sign1 Participants
Japanese Cohort 4: TAK-831 600 mgNumber of Participants Reporting at Least One TEAE Related to Vital Sign0 Participants
Japanese Cohort 5: TAK-831 50 mgNumber of Participants Reporting at Least One TEAE Related to Vital Sign0 Participants
Chinese Cohort 3: PlaceboNumber of Participants Reporting at Least One TEAE Related to Vital Sign0 Participants
Chinese Cohort 3: TAK-831 600 mgNumber of Participants Reporting at Least One TEAE Related to Vital Sign0 Participants
Primary

Number of Participants Reporting at Least One Treatment-emergent Adverse Event (TEAE)

Time frame: Cohort 1: Baseline up to Day 23; Cohorts 2-5: Baseline up to Day 31

Population: The safety analysis set was defined as all participants who received at least one dose of study drug.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Japanese Cohort 1: PlaceboNumber of Participants Reporting at Least One Treatment-emergent Adverse Event (TEAE)0 Participants
Japanese Cohort 1: TAK-831 100 mgNumber of Participants Reporting at Least One Treatment-emergent Adverse Event (TEAE)2 Participants
Japanese Cohort 1: TAK-831 300 mgNumber of Participants Reporting at Least One Treatment-emergent Adverse Event (TEAE)0 Participants
Japanese Cohort 2, 4 and 5: Pooled PlaceboNumber of Participants Reporting at Least One Treatment-emergent Adverse Event (TEAE)4 Participants
Japanese Cohort 2: TAK-831 300 mgNumber of Participants Reporting at Least One Treatment-emergent Adverse Event (TEAE)4 Participants
Japanese Cohort 4: TAK-831 600 mgNumber of Participants Reporting at Least One Treatment-emergent Adverse Event (TEAE)1 Participants
Japanese Cohort 5: TAK-831 50 mgNumber of Participants Reporting at Least One Treatment-emergent Adverse Event (TEAE)2 Participants
Chinese Cohort 3: PlaceboNumber of Participants Reporting at Least One Treatment-emergent Adverse Event (TEAE)1 Participants
Chinese Cohort 3: TAK-831 600 mgNumber of Participants Reporting at Least One Treatment-emergent Adverse Event (TEAE)2 Participants
Secondary

AUC∞: Area Under the Plasma Concentration-time Curve From Time 0 to Infinity for TAK-831

Time frame: Cohort 1: Day 1 pre-dose and at 0.5, 1, 1.5, 2, 4, 8, 12, 24, 36, 48 and 72 hours post-dose; Cohorts 2 to 5: Day 1 pre-dose and at 0.25, 0.5, 1, 1.5, 2, 4, 8, 12, 24, 36, 48 and 72 hours post-dose

Population: The PK analysis set included participants who received at least one dose of study drug, and who were appropriately evaluable for at least 1 PK parameter.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Japanese Cohort 1: PlaceboAUC∞: Area Under the Plasma Concentration-time Curve From Time 0 to Infinity for TAK-8311581 h*ng/mLGeometric Coefficient of Variation 11.7
Japanese Cohort 1: TAK-831 100 mgAUC∞: Area Under the Plasma Concentration-time Curve From Time 0 to Infinity for TAK-8313653 h*ng/mLGeometric Coefficient of Variation 12.2
Japanese Cohort 1: TAK-831 300 mgAUC∞: Area Under the Plasma Concentration-time Curve From Time 0 to Infinity for TAK-8313730 h*ng/mLGeometric Coefficient of Variation 31.9
Japanese Cohort 2, 4 and 5: Pooled PlaceboAUC∞: Area Under the Plasma Concentration-time Curve From Time 0 to Infinity for TAK-8316518 h*ng/mLGeometric Coefficient of Variation 26.2
Japanese Cohort 2: TAK-831 300 mgAUC∞: Area Under the Plasma Concentration-time Curve From Time 0 to Infinity for TAK-831923.6 h*ng/mLGeometric Coefficient of Variation 22.1
Japanese Cohort 4: TAK-831 600 mgAUC∞: Area Under the Plasma Concentration-time Curve From Time 0 to Infinity for TAK-8315530 h*ng/mLGeometric Coefficient of Variation 22.3
Secondary

AUClast: Area Under the Plasma Concentration-time Curve (AUC) From Time 0 to Time of the Last Quantifiable Concentration for TAK-831

Time frame: Cohort 1: Day 1 pre-dose and at 0.5, 1, 1.5, 2, 4, 8, 12, 24, 36, 48 and 72 hours post-dose; Cohorts 2 to 5: Day 1 pre-dose and at 0.25, 0.5, 1, 1.5, 2, 4, 8, 12, 24, 36, 48 and 72 hours post-dose

Population: The PK analysis set included participants who received at least one dose of study drug, and who were appropriately evaluable for at least 1 PK parameter.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Japanese Cohort 1: PlaceboAUClast: Area Under the Plasma Concentration-time Curve (AUC) From Time 0 to Time of the Last Quantifiable Concentration for TAK-8311553 hour*nanogram per milliliter(h*ng/mL)Geometric Coefficient of Variation 11.8
Japanese Cohort 1: TAK-831 100 mgAUClast: Area Under the Plasma Concentration-time Curve (AUC) From Time 0 to Time of the Last Quantifiable Concentration for TAK-8313630 hour*nanogram per milliliter(h*ng/mL)Geometric Coefficient of Variation 11.9
Japanese Cohort 1: TAK-831 300 mgAUClast: Area Under the Plasma Concentration-time Curve (AUC) From Time 0 to Time of the Last Quantifiable Concentration for TAK-8313700 hour*nanogram per milliliter(h*ng/mL)Geometric Coefficient of Variation 32.2
Japanese Cohort 2, 4 and 5: Pooled PlaceboAUClast: Area Under the Plasma Concentration-time Curve (AUC) From Time 0 to Time of the Last Quantifiable Concentration for TAK-8316477 hour*nanogram per milliliter(h*ng/mL)Geometric Coefficient of Variation 26.2
Japanese Cohort 2: TAK-831 300 mgAUClast: Area Under the Plasma Concentration-time Curve (AUC) From Time 0 to Time of the Last Quantifiable Concentration for TAK-831847.4 hour*nanogram per milliliter(h*ng/mL)Geometric Coefficient of Variation 21.5
Japanese Cohort 4: TAK-831 600 mgAUClast: Area Under the Plasma Concentration-time Curve (AUC) From Time 0 to Time of the Last Quantifiable Concentration for TAK-8315504 hour*nanogram per milliliter(h*ng/mL)Geometric Coefficient of Variation 22.3
Secondary

Cmax: Maximum Observed Plasma Concentration for TAK-831

Time frame: Cohort 1: Day 1 pre-dose and at 0.5, 1, 1.5, 2, 4, 8, 12, 24, 36, 48 and 72 hours post-dose; Cohorts 2 to 5: Day 1 pre-dose and at 0.25, 0.5, 1, 1.5, 2, 4, 8, 12, 24, 36, 48 and 72 hours post-dose

Population: The pharmacokinetic (PK) analysis set included participants who received at least one dose of study drug, and who were appropriately evaluable for at least 1 PK parameter.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Japanese Cohort 1: PlaceboCmax: Maximum Observed Plasma Concentration for TAK-831985.5 nanogram per milliliter (ng/mL)Geometric Coefficient of Variation 20.8
Japanese Cohort 1: TAK-831 100 mgCmax: Maximum Observed Plasma Concentration for TAK-8311823 nanogram per milliliter (ng/mL)Geometric Coefficient of Variation 53.7
Japanese Cohort 1: TAK-831 300 mgCmax: Maximum Observed Plasma Concentration for TAK-831981.7 nanogram per milliliter (ng/mL)Geometric Coefficient of Variation 29.1
Japanese Cohort 2, 4 and 5: Pooled PlaceboCmax: Maximum Observed Plasma Concentration for TAK-8311602 nanogram per milliliter (ng/mL)Geometric Coefficient of Variation 42.1
Japanese Cohort 2: TAK-831 300 mgCmax: Maximum Observed Plasma Concentration for TAK-831339.9 nanogram per milliliter (ng/mL)Geometric Coefficient of Variation 33.3
Japanese Cohort 4: TAK-831 600 mgCmax: Maximum Observed Plasma Concentration for TAK-8311807 nanogram per milliliter (ng/mL)Geometric Coefficient of Variation 28.5
Secondary

Cohorts 2 to 5, AUCtau: Area Under the Plasma Concentration-time Curve From Time 0 to [Time] Over the Dosing Interval for TAK-831

Time frame: Day 1: pre-dose and at 0.25, 0.5, 1, 1.5, 2, 4, 8, 12, 24, 36, 48 and 72 hours post-dose and Day 17: pre-dose and at 0.25, 0.5, 1, 1.5, 2, 4, 8, 12, and 24 hours post-dose

Population: The PK analysis set included participants who received at least one dose of study drug, and who were appropriately evaluable for at least 1 PK parameter.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Japanese Cohort 1: PlaceboCohorts 2 to 5, AUCtau: Area Under the Plasma Concentration-time Curve From Time 0 to [Time] Over the Dosing Interval for TAK-831Day 13576 h*ng/mLGeometric Coefficient of Variation 30.6
Japanese Cohort 1: PlaceboCohorts 2 to 5, AUCtau: Area Under the Plasma Concentration-time Curve From Time 0 to [Time] Over the Dosing Interval for TAK-831Day 172738 h*ng/mLGeometric Coefficient of Variation 31.1
Japanese Cohort 1: TAK-831 100 mgCohorts 2 to 5, AUCtau: Area Under the Plasma Concentration-time Curve From Time 0 to [Time] Over the Dosing Interval for TAK-831Day 178237 h*ng/mLGeometric Coefficient of Variation 28.4
Japanese Cohort 1: TAK-831 100 mgCohorts 2 to 5, AUCtau: Area Under the Plasma Concentration-time Curve From Time 0 to [Time] Over the Dosing Interval for TAK-831Day 16211 h*ng/mLGeometric Coefficient of Variation 26.8
Japanese Cohort 1: TAK-831 300 mgCohorts 2 to 5, AUCtau: Area Under the Plasma Concentration-time Curve From Time 0 to [Time] Over the Dosing Interval for TAK-831Day 1794.5 h*ng/mLGeometric Coefficient of Variation 22.2
Japanese Cohort 1: TAK-831 300 mgCohorts 2 to 5, AUCtau: Area Under the Plasma Concentration-time Curve From Time 0 to [Time] Over the Dosing Interval for TAK-831Day 17983.0 h*ng/mLGeometric Coefficient of Variation 22.3
Japanese Cohort 2, 4 and 5: Pooled PlaceboCohorts 2 to 5, AUCtau: Area Under the Plasma Concentration-time Curve From Time 0 to [Time] Over the Dosing Interval for TAK-831Day 15340 h*ng/mLGeometric Coefficient of Variation 22.3
Japanese Cohort 2, 4 and 5: Pooled PlaceboCohorts 2 to 5, AUCtau: Area Under the Plasma Concentration-time Curve From Time 0 to [Time] Over the Dosing Interval for TAK-831Day 175839 h*ng/mLGeometric Coefficient of Variation 21.6
Secondary

Cohorts 2 to 5, Cmax, ss: Maximum Observed Steady-state Plasma Concentration During a Dosing Interval for TAK-831

Time frame: Day 17 pre-dose and at 0.25, 0.5, 1, 1.5, 2, 4, 8, 12 and 24 hours post-dose

Population: The PK analysis set included participants who received at least one dose of study drug, and who were appropriately evaluable for at least 1 PK parameter.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Japanese Cohort 1: PlaceboCohorts 2 to 5, Cmax, ss: Maximum Observed Steady-state Plasma Concentration During a Dosing Interval for TAK-831831.8 ng/mLGeometric Coefficient of Variation 29.1
Japanese Cohort 1: TAK-831 100 mgCohorts 2 to 5, Cmax, ss: Maximum Observed Steady-state Plasma Concentration During a Dosing Interval for TAK-8311903 ng/mLGeometric Coefficient of Variation 33.6
Japanese Cohort 1: TAK-831 300 mgCohorts 2 to 5, Cmax, ss: Maximum Observed Steady-state Plasma Concentration During a Dosing Interval for TAK-831417.0 ng/mLGeometric Coefficient of Variation 23.8
Japanese Cohort 2, 4 and 5: Pooled PlaceboCohorts 2 to 5, Cmax, ss: Maximum Observed Steady-state Plasma Concentration During a Dosing Interval for TAK-8311581 ng/mLGeometric Coefficient of Variation 42.4
Secondary

Tmax: Time to Reach the Maximum Plasma Concentration (Cmax) for TAK-831

Time frame: Cohort 1: Day 1 pre-dose, 0.5, 1, 1.5, 2, 4, 8, 12, 24, 36, 48, 72 hours post-dose; Cohorts 2 to 5: Day 1 pre-dose, 0.25, 0.5, 1, 1.5, 2, 4, 8, 12, 24, 36, 48, 72 hours post-dose; Day 17 pre-dose, 0.25, 0.5, 1, 1.5, 2, 4, 8, 12, 24 hours post-dose

Population: The PK analysis set included participants who received at least one dose of study drug, and who were appropriately evaluable for at least 1 PK parameter.

ArmMeasureGroupValue (MEDIAN)
Japanese Cohort 1: PlaceboTmax: Time to Reach the Maximum Plasma Concentration (Cmax) for TAK-831Day 10.5000 hour
Japanese Cohort 1: PlaceboTmax: Time to Reach the Maximum Plasma Concentration (Cmax) for TAK-831Day 17NA hour
Japanese Cohort 1: TAK-831 100 mgTmax: Time to Reach the Maximum Plasma Concentration (Cmax) for TAK-831Day 10.5000 hour
Japanese Cohort 1: TAK-831 100 mgTmax: Time to Reach the Maximum Plasma Concentration (Cmax) for TAK-831Day 17NA hour
Japanese Cohort 1: TAK-831 300 mgTmax: Time to Reach the Maximum Plasma Concentration (Cmax) for TAK-831Day 12.000 hour
Japanese Cohort 1: TAK-831 300 mgTmax: Time to Reach the Maximum Plasma Concentration (Cmax) for TAK-831Day 171.750 hour
Japanese Cohort 2, 4 and 5: Pooled PlaceboTmax: Time to Reach the Maximum Plasma Concentration (Cmax) for TAK-831Day 11.750 hour
Japanese Cohort 2, 4 and 5: Pooled PlaceboTmax: Time to Reach the Maximum Plasma Concentration (Cmax) for TAK-831Day 172.000 hour
Japanese Cohort 2: TAK-831 300 mgTmax: Time to Reach the Maximum Plasma Concentration (Cmax) for TAK-831Day 10.5000 hour
Japanese Cohort 2: TAK-831 300 mgTmax: Time to Reach the Maximum Plasma Concentration (Cmax) for TAK-831Day 170.5000 hour
Japanese Cohort 4: TAK-831 600 mgTmax: Time to Reach the Maximum Plasma Concentration (Cmax) for TAK-831Day 11.500 hour
Japanese Cohort 4: TAK-831 600 mgTmax: Time to Reach the Maximum Plasma Concentration (Cmax) for TAK-831Day 172.000 hour

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026