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A First-in-Human, Single- and Multiple-Ascending Dose Study of YH35995 in Healthy Adult Male Participants

A First-in-Human, Phase 1, Randomized, Double-Blind, Placebo-Controlled, Single- and Multiple-Ascending Dose Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics Following Oral Administration of YH35995 in Healthy Adult Male Participants

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06517914
Enrollment
94
Registered
2024-07-24
Start date
2024-07-29
Completion date
2027-03-01
Last updated
2026-07-28

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

Conditions

Healthy Participants

Keywords

YH35995, Gaucher Disease

Brief summary

This is a randomized, double-blind, first-in-human study to assess the safety, tolerability, pharmacokinetics and pharmacodynamics of single and multiple oral doses of YH35995

Detailed description

YH35995 is being developed as a treatment for the neurological symptoms of Gaucher Disease type 3. This study is a first-in-human (FIH), phase 1, randomized, double-blind, placebo-controlled study of YH35995, which consists of two parts. In Part A (SAD), single ascending dose of YH35995 is administered to healthy male participants to assess its safety, tolerability, PK, and PD. In Part B (MAD), multiple ascending dose of YH35995 is administered to healthy male participants to assess its safety, tolerability, PK, and PD.

Interventions

DRUGYH35995

Oral administration of YH35995

DRUGPlacebo

Oral administration of Placebo

Sponsors

Yuhan Corporation
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Masking description

This is a double-blind study, meaning that YH35995 tablets and placebo tablets will be identical in appearance and will be packaged in the same way. Information about the treatment arm to which participants are assigned must remain blinded for the duration of the study unless information about the causal relationship between the adverse event and the Investigational Product that meets the drug withdrawal criteria becomes essential or, in an emergency, if the information about the Investigational Product becomes critical for treating the participant.

Eligibility

Sex/Gender
MALE
Age
19 Years to 45 Years
Healthy volunteers
Yes

Inclusion criteria

* Male between the ages of 19 and 45 at the time of providing written consent * Participants who weigh at least 50 kg at screening and have a body mass index (BMI) of at least 18.0 kg/m2 and less than 30 kg/m2 * Participants who have been fully informed about and fully understand this study, have voluntarily decided to participate, and have agreed in writing to comply with the guidelines of the study during the duration of the study

Exclusion criteria

* Participation in a bioequivalence trial or any other clinical trials within 6 months prior to the first scheduled dose of the IP (within 1 month of the first scheduled dose for participants who have taken part in a dietary supplement clinical trial) * Individuals with clinically significant abnormal results that do not match any other inclusion/

Design outcomes

Primary

MeasureTime frameDescription
[Part A, B] Treatment-emergent adverse events (TEAEs)Part A: Day1-150, Part B: Day1-232To assess the safety and tolerability of a single dose and multiple dose administration of YH35995

Secondary

MeasureTime frameDescription
[Part A] Maximum observed plasma concentration (Cmax)Day1-150To characterize the pharmacokinetics (PK) of YH35995
[Part A] Time to reach Cmax (Tmax)Day1-150To characterize the pharmacokinetics (PK) of YH35995
[Part A] Area under the plasma concentration-time curve from time 0 to the last quantifiable concentration (AUClast)Day1-150To characterize the pharmacokinetics (PK) of YH35995
[Part A] AUC from time 0 to infinity (AUCinf)Day1-150To characterize the pharmacokinetics (PK) of YH35995
[Part A] Apparent terminal elimination half-life (t1/2)Day1-150To characterize the pharmacokinetics (PK) of YH35995
[Part A] Total plasma clearance (CL/F)Day1-150To characterize the pharmacokinetics (PK) of YH35995
[Part A] Apparent volume of distribution (Vz/F)Day1-150To characterize the pharmacokinetics (PK) of YH35995
[Part B] Cmax during the first dosing intervalDay1-232To assess the pharmacokinetics (PK) of YH35995 after multiple dose administration
[Part B] Tmax during the first dosing intervalDay1-232To assess the pharmacokinetics (PK) of YH35995 after multiple dose administration
[Part B] AUC during the first dosing interval (AUCsingle)Day1-232To assess the pharmacokinetics (PK) of YH35995 after multiple dose administration
[Part B] AUC during the dosing interval at steady state (AUCtau,ss)Day1-232To assess the pharmacokinetics (PK) of YH35995 after multiple dose administration
[Part B] Cmax at steady state (Cmax,ss)Day1-232To assess the pharmacokinetics (PK) of YH35995 after multiple dose administration
[Part B] Tmax at steady state (Tmax,ss)Day1-232To assess the pharmacokinetics (PK) of YH35995 after multiple dose administration
[Part B] Accumulation ratio using AUC (Rac(AUC))Day1-232To assess the pharmacokinetics (PK) of YH35995 after multiple dose administration
[Part B] Accumulation ratio using Cmax (Rac(Cmax))Day1-232To assess the pharmacokinetics (PK) of YH35995 after multiple dose administration
[Part B] Plasma concentration at the last observed time point during the dosing interval at steady state (Ctrough)Day1-232To assess the pharmacokinetics (PK) of YH35995 after multiple dose administration
[Part B] Average plasma concentration (Cavg)Day1-232To assess the pharmacokinetics (PK) of YH35995 after multiple dose administration
[Part B] Clearance at steady state (CLss/F)Day1-232To assess the pharmacokinetics (PK) of YH35995 after multiple dose administration
[Part B] Volume of distribution at steady state (Vss)Day1-232To assess the pharmacokinetics (PK) of YH35995 after multiple dose administration
[Part B] Effective half-life (t1/2,Rac)Day1-232To assess the pharmacokinetics (PK) of YH35995 after multiple dose administration
[Part B] Cerebrospinal fluid to plasma concentration ratio(C/P ratio) of YH35995Day1-232To assess the pharmacokinetics (PK) of YH35995 after multiple dose administration
[Part B] Properly derived PD parameters for YH35995, including the area under the effect curve (AUEC) and maximum effect (Emax)Day1-232To assess the pharmacodynamics (PD) of YH35995 after multiple dose administration

Countries

South Korea

Contacts

PRINCIPAL_INVESTIGATORHyounggyoon Yoo

CHA Bundang Medical Center

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 29, 2026