Assess the Safety, Tolerability, and Pharmacokinetic (PK) Characteristics of HM10460A (HNK460) in Healthy Adult Korean Subjects

Study Overview
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Brief Summary
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Study Design Randomized, Double-blind, Placebo-controlled, escalating single-dose design. Five ascending dose cohorts. In each cohort, subjects will be randomized to receive a single dose of HM10460A or placebo (negative control) Objectives The primary objective of the study is to assess the safety and tolerability of single escalating subcutaneous doses of HM10460A in healthy adult Korean Subjects

Detailed Description
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The secondary objectives of the study are as follows: to assess the pharmacokinetics (PK) of a single subcutaneous dose of HM10460A. to assess the relationship between the serum concentration of HM10460A and absolute neutrophil count (ANC). to assess the relationship between the serum concentration of HM10460A and CD34+ cell counts in the blood. to assess the immunogenicity (HM10460A, native G-CSF antibody,neutralizing antibodies) of a single subcutaneous dose of HM10460A.

Official Title
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A Randomized, Double-Blind, Placebo-Controlled, Escalating Single-Dose Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of HM10460A (HNK460) When Administered Subcutaneously to Healthy Adult Korean Subjects

Conditions
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Healthy

Intervention / Treatment
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* Drug: HM10460A 5μg/kg
* Drug: HM10460A 15μg/kg
* Drug: HM10460A 45μg/kg
* Drug: HM10460A 135μg/kg
* Drug: HM10460A 350μg/kg
* Drug: Placebo


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Healthy adult Korean male and/or females, 20 - 45 years of age(inclusive). BMI of 18 - 27kg/m2. Medically healthy with no clinically significant screening results. The following results in laboratory test Absolute neutrophil count (ANC) : 2000   7500/mm3 Non-smokers or subjects who smoke less than 10 cigarettes/day After a confirmed menstrual period, females of childbearing potential must be either sexually inactive (abstinent) for 14 days prior to screening and agree to remain so throughout the study, or have been using a highly effective method of birth control, such as the following examples: intra-uterine device in place for at least 3 months prior to Day 1; stable hormonal contraceptive for at least 3 months prior to Day 1 through completion of study; surgical sterilization (vasectomy) of partner at least 6 months prior to Day 1. Females of non-childbearing potential must have undergone one of the following sterilization procedures at least 6 months prior to Day 1: bilateral tubal ligation; hysterectomy; hysterectomy with unilateral or bilateral oophorectomy; bilateral oophorectomy. Exclusion Criteria: History or presence of significant cardiovascular, pulmonary, hepatic, renal, hematological, gastrointestinal, endocrine, immunologic, dermatologic, neurological, or psychiatric disease. Positive urine drug/alcohol testing at screening or check-in. Positive testing for HIV, HBsAg, or HCV antibodies. Active infection Positive testing for palpable spleen at screening or check-in. The following results in laboratory test: WBC > 10.0 x 10^3/mm3 Hb < 13g/dL Platelet < 150 x 10^3/mm3 AST/ALT > 50 IU/L History or presence of alcoholism or drug abuse within 2 years prior to Day 1. History of G-CSF-related product use (i.e., pegfilgrastim, filgrastim). History of anaphylactic reaction to medicine or environmental exposures. Use of any prescription medication (with the exception of hormonal contraceptives for females) or receipt of any blood products within 14 days prior to Day 1. Use of any over-the-counter medication, including herbal products, within 7 days prior to the Day 1. Up to 2 grams per day of acetaminophen is allowed at the discretion of the Investigator. Blood donation or significant blood loss within 56 days prior to Day 1. Plasma donation within 7 days prior to Day 1. Participation in another clinical trial (receipt of last investigational medication) within 30 days prior to Day 1. Females who are pregnant or lactating. Subjects who are unlikely to comply with the protocol requirements, instructions and study related restrictions; e.g., uncooperative attitude, inability to return for follow-up visits and improbability of completing the clinical study.

Ages Eligible for Study
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Minimum Age: 20 Years
Maximum Age: 45 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Cohort 1<br>Administration of HM10460A 5μg/kg or Placebo | Drug: HM10460A 5μg/kg<br>* Subcutaneously administrate at 0 hour on Day 1<br>Drug: Placebo<br>* Subcutaneously administrate at 0 hour on Day 1<br>|
| Experimental: Cohort 2<br>Administration of HM10460A 15μg/kg or placebo | Drug: HM10460A 15μg/kg<br>* Subcutaneously administrate at 0 hour on Day 1<br>Drug: Placebo<br>* Subcutaneously administrate at 0 hour on Day 1<br>|
| Experimental: Cohort 3<br>Administration of HM10460A 45μg/kg or placebo | Drug: HM10460A 45μg/kg<br>* Subcutaneously administrate at 0 hour on Day 1<br>Drug: Placebo<br>* Subcutaneously administrate at 0 hour on Day 1<br>|
| Experimental: Cohort 4<br>Administration of HM10460A 135μg/kg or placebo | Drug: HM10460A 135μg/kg<br>* Subcutaneously administrate at 0 hour on Day 1<br>Drug: Placebo<br>* Subcutaneously administrate at 0 hour on Day 1<br>|
| Experimental: Cohort 5<br>Administration of HM10460A 350μg/kg or placebo | Drug: HM10460A 350μg/kg<br>* Subcutaneously administrate at 0 hour on Day 1<br>Drug: Placebo<br>* Subcutaneously administrate at 0 hour on Day 1<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Safety data, including physical examinations (to include injection site reactions and splenic evaluations), laboratory evaluations, ECGs, vital signs, and adverse effects (AEs) |  | Time point of collection, where appropriate | 
| Samples for immunogenicity |  | Time point of collection, where appropriate | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Serum PK parameters/Urine PK parameters |  | Serum : pre-dose, 0.25, 05, 0.75, 1,2,3,4,6,8,12,16,24,36,48,72,96,120,144 (hr)// Urine : 0-6, 6-12, 12-24, 24-36, 36,48(hr) | 
| Calculation of the ANC (Absolute Neutrophil count) & CD34+ cell. |  | Pre-dose, 24 and 48 hours post-dose, on return Days 4,5,6,7,11,15 and 22 |