Safety, Tolerability and Pharmacokinetic Study of KL1333 in Healthy Male Volunteers
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ClinicalTrials.gov Identifier: NCT03056209 |
Recruitment Status :
Completed
First Posted : February 17, 2017
Last Update Posted : April 27, 2018
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
MELAS Syndrome Mitochondrial Respiratory Chain Deficiencies | Drug: KL1333 25 mg Drug: KL1333 50 mg Drug: KL1333 100 mg Drug: KL1333 200 mg Drug: KL1333 400 mg Drug: KL1333 600 mg Drug: KL1333 800 mg Drug: Placebo | Phase 1 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 60 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Double (Participant, Investigator) |
Primary Purpose: | Treatment |
Official Title: | A Dose Block-randomized, Double-blind, Placebo-controlled, Single-dose, Dose-escalation, Phase I Clinical Study |
Actual Study Start Date : | June 26, 2017 |
Actual Primary Completion Date : | April 16, 2018 |
Actual Study Completion Date : | April 16, 2018 |

Arm | Intervention/treatment |
---|---|
Experimental: KL1333 25mg
Group 1
|
Drug: KL1333 25 mg
oral administration, single dose, 25 mg 1 tab Drug: Placebo oral administration, placebo |
Experimental: KL1333 50mg
Group 2
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Drug: KL1333 50 mg
oral administration, single dose, 25 mg 2 tabs Drug: Placebo oral administration, placebo |
Experimental: KL1333 100mg
Group 3
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Drug: KL1333 100 mg
oral administration, single dose, 100 mg 1 tab Drug: Placebo oral administration, placebo |
Experimental: KL1333 200mg
Group 4
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Drug: KL1333 200 mg
oral administration, single dose, 100 mg 2 tabs Drug: Placebo oral administration, placebo |
Experimental: KL1333 400mg
Group 5
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Drug: KL1333 400 mg
oral administration, single dose, 100 mg 4 tabs Drug: Placebo oral administration, placebo |
Experimental: KL1333 600mg
Group 6
|
Drug: KL1333 600 mg
oral administration, single dose, 100 mg 6 tabs Drug: Placebo oral administration, placebo |
Experimental: KL1333 800mg
Group 7
|
Drug: KL1333 800 mg
oral administration, single dose, 100 mg 8 tabs Drug: Placebo oral administration, placebo |
- Number of reported adverse events [ Time Frame: from day 1 to day 15 ]
- Maximum plasma concentration (Cmax) of KL1333 [ Time Frame: from day 1 to day 15 ]
- Area Under the Curve (AUC) of KL1333 [ Time Frame: from day 1 to day 15 ]
- Half-life (T1/2) of KL1333 [ Time Frame: from day 1 to day 15 ]

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Ages Eligible for Study: | 19 Years to 45 Years (Adult) |
Sexes Eligible for Study: | Male |
Accepts 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

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03056209
Korea, Republic of | |
Seoul National University Hospital | |
Seoul, Jongno-gu, Korea, Republic of, 110744 |
Study Chair: | Kyung-Sang Yu, MD., MBA | Seoul National University Hospital |
Responsible Party: | Yungjin Pharm. Co., Ltd. |
ClinicalTrials.gov Identifier: | NCT03056209 |
Other Study ID Numbers: |
KL1333_101 |
First Posted: | February 17, 2017 Key Record Dates |
Last Update Posted: | April 27, 2018 |
Last Verified: | April 2018 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Mitochondrial DNA tRNALeu(UUR) m.3243A<G Mutation |
MELAS Syndrome Mitochondrial Diseases Mitochondrial Encephalomyopathies Mitochondrial Myopathies Muscular Diseases Musculoskeletal Diseases Brain Diseases, Metabolic, Inborn Brain Diseases, Metabolic Brain Diseases Central Nervous System Diseases |
Nervous System Diseases Cerebral Small Vessel Diseases Cerebrovascular Disorders Neuromuscular Diseases Vascular Diseases Cardiovascular Diseases Metabolism, Inborn Errors Genetic Diseases, Inborn Metabolic Diseases |