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Safety, Tolerability and Pharmacokinetic Study of KL1333 in Healthy Male Volunteers

A Dose Block-randomized, Double-blind, Placebo-controlled, Single-dose, Dose-escalation, Phase I Clinical Study

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03056209
Enrollment
60
Registered
2017-02-17
Start date
2017-06-26
Completion date
2018-04-16
Last updated
2018-04-27

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

Conditions

MELAS Syndrome, Mitochondrial Respiratory Chain Deficiencies

Keywords

Mitochondrial DNA tRNALeu(UUR) m.3243A<G Mutation

Brief summary

The purpose of this First In Human study is to investigate the safety and tolerability of KL1333 after a single oral dose and to investigate the pharmacokinetic characteristics of KL1333 after a single oral dose.

Interventions

DRUGKL1333 25 mg

oral administration, single dose, 25 mg 1 tab

DRUGKL1333 50 mg

oral administration, single dose, 25 mg 2 tabs

DRUGKL1333 100 mg

oral administration, single dose, 100 mg 1 tab

DRUGKL1333 200 mg

oral administration, single dose, 100 mg 2 tabs

DRUGKL1333 400 mg

oral administration, single dose, 100 mg 4 tabs

DRUGKL1333 600 mg

oral administration, single dose, 100 mg 6 tabs

DRUGKL1333 800 mg

oral administration, single dose, 100 mg 8 tabs

DRUGPlacebo

oral administration, placebo

Sponsors

Yungjin Pharm. Co., Ltd.
Lead SponsorINDUSTRY

Study design

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

Eligibility

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

Inclusion criteria

* 19 - 45 years of age at the time of screening * Subjects weighing ≥55 and ≤90 kg with BMI between 18 and 27 kg/m2 * Subjects who agreed to voluntarily participate in this study and comply with all the study requirements by signing informed consent form after being informed of the nature of this study and understanding all aspects of this study

Exclusion criteria

* History of clinically significant hepatic, renal, neurologic, immunologic, respiratory, endocrine disease or hematologic•oncologic disease, cardiovascular, psychiatric disease * History of disease or surgery of the gastrointestinal tract that could interfere with kinetics of the study drug. Simple hernia repair or appendectomy are excepted. * History of clinically significant or relevant allergy/hypersensitivity * Blood AST (SGOT), ALT (SGPT) \>1.5 of upper limit * eGFR value of ≤90mL/min/1.73m2 * Systolic blood pressure of \<100 mmHg or \>160 mmHg * Diastolic blood pressure of \<60 mmHg or \>100 mmHg * Any abnormalities in 12-lead ECG at screening visit * Subjects who showed positive result in drug abuse tests, or who has history of drug abuse within 60 days prior to the time of screening * Subjects who took prescribed medications or oriental medicine within 14 days or over-the-counter (OTC) medications or vitamins within 7 days prior to the dose of the study drug (however, the subject can be included if other criteria are met according to the discretion of the investigator) * Subjects who were administered any investigational products within 3 months from the first dose of the study drug * Subjects who have donated whole blood (60 days) or partial blood (30 days), or received blood transfusion * Subjects who have had alcohol consistently (\>21units/week, 1unit=10 g of pure alcohol) or who is not able to stop drinking alcohol throughout the study period * Subjects who have smoked until 90 days prior to the study initiation or who are not able to stop smoking throughout the study period * Subjects who are not able to stop taking grapefruit/caffeine from 3 days prior to the first dose of the study drug throughout the study period * Subjects who plan for pregnancy during the study period or who are not able to use established contraceptive method * Subject who judged not eligible for study participation by investigator

Design outcomes

Primary

MeasureTime frame
Number of reported adverse eventsfrom day 1 to day 15

Secondary

MeasureTime frame
Area Under the Curve (AUC) of KL1333from day 1 to day 15
Half-life (T1/2) of KL1333from day 1 to day 15
Maximum plasma concentration (Cmax) of KL1333from day 1 to day 15

Countries

South Korea

Outcome results

None listed

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