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TAK-123

Phase 1

Healthy Volunteers | Small molecule | Other |Takeda Pharmaceutical Company Limited|Last Updated: Nov 20, 2025

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
UNCONTROLLEDBiomarker
Total Trials1
Total Enrollment10
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04155567A Study to Evaluate the Pharmacokinetics (PK), Safety and Tolerability of TAK-123 After Intravenous Infusion in Japanese Healthy Adult Male ParticipantsPHASE1 COMPLETED 10 — — Nov 13, 2019Dec 6, 2019Nov 20, 20251 Japan
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Study Endpoints
Primary Endpoints
Cmax: Maximum Observed Plasma Concentration for Phenylacetate, Benzoate, and Their Metabolites (Phenylacetylglutamine and Hippurate)
Day 1: pre-infusion and 0.25, 0.75, 1.5, 2.5, 4.5, 6.5, 8.5, 10.5, 12.5, 16.5, 25.5, 26, 26.5, 27, 27.5, 28, 28.5, 29.5, 30.5, 32.5 and 48 hours post-infusion
AUClast: Area Under the Plasma Concentration-Time Curve From Time 0 to the Time of the Last Quantifiable Concentration for Phenylacetate, Benzoate, and Their Metabolites (Phenylacetylglutamine and Hippurate)
Day 1: pre-infusion and 0.25, 0.75, 1.5, 2.5, 4.5, 6.5, 8.5, 10.5, 12.5, 16.5, 25.5, 26, 26.5, 27, 27.5, 28, 28.5, 29.5, 30.5, 32.5 and 48 hours post-infusion
AUC∞: Area Under the Plasma Concentration-time Curve From Time 0 to Infinity for Phenylacetate, Benzoate, and Their Metabolites (Phenylacetylglutamine and Hippurate)
Day 1: pre-infusion and 0.25, 0.75, 1.5, 2.5, 4.5, 6.5, 8.5, 10.5, 12.5, 16.5, 25.5, 26, 26.5, 27, 27.5, 28, 28.5, 29.5, 30.5, 32.5 and 48 hours post-infusion
Secondary Endpoints
Number of Participants Reporting One or More Treatment-emergent Adverse Events (TEAEs)
Day 1 up to Day 8
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
TAK-123EXPERIMENTALTAK-123 as 3.75 gram per square meter (g/m\^2) of sodium phenylacetate and 3.75 g/m\^2 of sodium benzoate, intravenous administration over 90 minutes, followed by TAK-123 as 3.75 g/m\^2 of sodium phenylacetate and 3.75 g/m\^2 of sodium benzoate, intravenous administration over 24 hours.
Interventions
NameTypeDescription
TAK-123DRUGTAK-123 infusion
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Eligibility Criteria
Age Range20 Years — 45 Years
SexMALE
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: 1. The participant is capable of understanding and complying with protocol requirements in the opinion of the investigator or sub-investigator. 2. The participant signs and dates a written informed consent form prior to the initiation of any study procedures. 3. The participant ...

Countries:Japan
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