NCT04234672

A Study to Assess Absolute Bioavailability (ABA) of TAK-831 and to Characterize Mass Balance, Pharmacokinetics (PK), Metabolism, and Excretion of [14C]TAK-831 in Male Healthy Participants

A Phase 1 Study to Assess Absolute Bioavailability of TAK-831 and to Characterize Mass Balance, Pharmacokinetics, Metabolism, and Excretion of [14C]TAK-831 in Male Healthy Subjects

• Status: Completed
• Phase: Phase 1
• Study type: Interventional
• Enrollment: 6 (actual)
• Sponsor: Neurocrine Biosciences · Industry
• Sex: Male
• Age: 19 Years – 55 Years
• Healthy volunteers: Accepted

Summary

The purpose of this study is to determine ABA of TAK-831 following a single microdose intravenous administration of 50 microgram (μg) (approximately 1 microcurie \[μCi\]) \[14C\]TAK-831 and a single oral administration of 500 milligram (mg) TAK-831 tablets in Period 1, and to assess the mass balance, characterize the PK of TAK-831 in plasma and urine, and total radioactivity concentration equivalents in plasma and whole blood following a single oral suspension dose of 500 mg (approximately 100 μCi) \[14C\]TAK-831 in Period 2.

Detailed description

The drug being tested in this study is called TAK-831 (also known as luvadaxistat). The study will determine ABA in Period 1, and the absorption, metabolism, excretion, and mass balance of TAK-831 after single oral administration in Period 2 in healthy adult male participants, by collecting plasma, urine, and feces samples for drug concentration analysis, and plasma, whole blood, urine, and fecal samples for total radioactivity analysis and metabolic profiling. The study will enroll approximately 6 participants. The study is designed to consist of 2 periods: Period 1 (ABA study period) and Period 2 (absorption, distribution, metabolism, and elimination \[ADME\] study period). In Period 1 (ABA study period), all participants will receive a single unlabelled oral dose of TAK-831 as tablet and a microdose intravenous infusion of 50 μg (approximately 1 μCi) \[14C\]TAK-831, followed by a washout period of 8 days before the dose in Period 2. In Period 2 (ADME study period), all participants will receive a single dose of 500 mg (approximately 100 μCi) \[14C\]TAK-831 as an oral suspension. This single center trial will be conducted in the United States. The overall time to participate in this study is approximately 65 days including screening period. Participants will be contacted approximately 30 days after the last dose of study drug for a follow-up assessment.

Conditions

• Healthy Volunteers

Interventions

Type	Name	Description
DRUG	TAK-831 Oral Tablet	TAK-831 tablet.
DRUG	[14C]TAK-831 IV Infusion	\[14C\]TAK-831 IV infusion.
DRUG	[14C]TAK-831 Oral Suspension	\[14C\]TAK-831 oral suspension.

Timeline

• Start date: 2020-02-17
• Primary completion: 2020-04-04
• Completion: 2020-04-04
• First posted: 2020-01-21
• Last updated: 2021-06-30
• Results posted: 2021-04-28

Locations

1 site across 1 country: United States

Regulatory

• FDA-regulated drug study