跳至主要内容
临床试验/NCT01624532
NCT01624532已完成2 期

A Phase 2 Study to Assess Dose-Response, Efficacy (Immunogenicity) and the Safety of GC1109 Administered in Multi Intramuscular Doses to Healthy Subjects

Green Cross Corporation2 个研究点 分布在 1 个国家目标入组 240 人开始时间: 2021年7月14日最近更新:
适应症

试验速览

阶段
2 期
状态
已完成
入组人数
240
试验地点
2
主要终点
Step 2) Toxin Neutralization Antibody (by TNA assay) of GC1109

研究概览

简要总结

The purpose of this study is to Assess Dose-Response, Efficacy (Immunogenicity) and the Safety of GC1109 Administered in Multi Intramuscular Doses to Healthy Subjects.

详细描述

  1. Step 1

Primary objective

  • Investigate the optimum volume of GC1109 to compare the subject ratio after seroconversion in each Anti-PA Ab by TNA at 4 weeks following infuse the drug 3 times with the immunogenicity of each treatment (GC1109 and placebo cohort) in healthy adults.
  • In healthy adults, three times the clinical dose of about four weeks, compare immunogenicity of each treatment group (GC1109 group and the placebo group) with subsects ratio who have been Seroconversion for Anti-PA Ab by TNA

Secondary objective

  • Percentage of subjects after seroconversion in each anti-PA IgG level (by ELISA) at 4 weeks following infuse the drug 3 times in healthy adults
  • Check the Seroprotection antibody titer (survival rate : 50%) with passive immune (nonclinical tests) at 4 weeks following infuse the drug 3 times in healthy adults
  • Establish the Seroconversion rate from the percentage of subjects after seroconversion at 4 weeks following infuse the drug 3 times and seroprotection antibody titer in healthy adults
  • Compare the immunogenicity of each treatment with the GMT's assessment of Anti-PA Ab by TNA for 4 weeks following infuse the drug 3 times
  • Compare the immunogenicity of each treatment with the GMT's assessment of Anti-PA IgG by ELISA for 4 weeks following infuse the drug 3 times
  • Determine the safety of the each treatment cohort
  1. Step 2

Primary objective

• Evaluate whether the Toxin Neutralization Antibody by TNA assay satisfy the NF50 standard or not at 4 weeks following infuse the optimal dose of GC1109 4 times in healthy adults.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Prevention
盲法
Double (Participant, Investigator)

入排标准

年龄范围
19 Years 至 65 Years(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Healthy 18 to 55 year-olds of either sex
  • Body mass index above 18.5kg/m2 or below 30kg/m2 at the screening time
  • A medical history without clinically significant congenital or chronic disease at the screening test before administrating the study drug within 28 days
  • Agreement to avoid pregnancy or use contraceptive measure between 1 week prior to first dose and the 4 weeks following the final administration
  • Female subjects of childbearing age, have negative serum β-HCG prior to infuse the study drug within 7 days and urine test at the every pre-vaccine
  • Signed, informed voluntarily consents the clinical trials
  • Willingness and agreement to comply with the constraints of the study protocol and ability to understand the study
  • Willingness and ability to return for all follow-up visits and blood draws for the duration of the study
  • Subjects who can have the study vaccine administered into the deltoid muscle and don't have the tattoo
  • Agreement to stop drinking for 7days following the administration of the each study vaccine
  • Agreement not to donate the blood for 24 hours following the administration of the each study vaccine

排除标准

  • Prior history of, or known exposure to any form of B.anthracis or any anthrax immunization
  • Employment in an industry involved in contact with ruminant animals, slaughterhose workers, handle the animal raw hides or raw wool, veterinary sciences involving ruminant animals, suspect exposure to any form of B. or anthrax immunization producer and developer.
  • HIV positive or syphilis HAV, HBV, HCV positive or suspect
  • Clinically significant out-of-range of laboratory tests at screening including : hypernatremia, hyponatremia, hypopotassemia, hyperchloremia, hypoproteinemia
  • Prior history of, immunodeficiency or clinically active autoimmune disease
  • Subjects with a history of Guillain-Barre syndrome
  • Subjects with hemophilia or being treated with an anticoagulant who are at increased risk of serious bleeding during intramuscular injection
  • History or evidence of metastatic malignancy tumor for internal organs, blood or flesh
  • Medical significant hypersensitivity or idiosyncratic reaction related to any medical product including study drug or with a history of anaphylaxis
  • Subjects who have had an acute fever exceeding a body temperature of 38.0℃ within 72 hours prior to the administration of the study vaccine, or who have had a symptom suspicious for acute febrile disease within 14 days prior to the administration of the study vaccine.
  • Individuals who have received or intend to receive medication within 30 days of injection of the any experimental drug
  • Donation of blood within 30 days prior to administrate the study drug
  • Subjects who have received or are scheduled for the treatment with the following drug within 120 days (except for inhaled, nasal or topical corticosteroid)
  • Subjects who have received or are scheduled for the treatment with the following drug within 120 days (except for inhaled, nasal or topical corticosteroid)
  • Systemic immunosuppressant therapy, radiotherapy, a high dose of steroid at the similar dose level
  • Blood-derived products including immunoglobulin
  • Systemic immunosuppressant therapy, radiotherapy, a high dose of steroid at the similar dose level Blood-derived products including immunoglobulin
  • Subjects who have received or are scheduled for the treatment with the following drug within the specified period
  • Pre-injection of the IP within 30 days: oriental medicine
  • Pre-injection of the IP within 7 days: ethical the counter drug (ETC), over the counter
  • History or suspect of drug abuse (Amphetamine, barbiturates, cocaine, opioids, benzodiazepines etc)
  • Subject without safety for the administration of vaccine, who in the investigator's opinion are unsuitable for the study or disturb the assessment of clinical trials
  • Inclusion Criteria:
  • Healthy 19 to 65 year-olds of either sex
  • A medical history without clinically significant congenital or chronic disease at the screening test before administrating the study drug within 28 days.
  • For woman of childbearing age who have not undergone sterilization operation and woman who have not been more than 12 months after menopause, those who agree to avoid pregnancy or use appropriate contraceptive measure for the duration of the study from within one week prior to the first clinical drug administration. Man, who agree to avoid pregnancy or use contraceptive measure for the duration of the study
  • Female subjects of childbearing age, have negative in pregnancy test at the screening visit
  • Signed, informed voluntarily consents the clinical trials
  • Subjects who can have the study drug administered into the deltoid muscle and don't have the tattoo
  • Agreement not to donate the blood for the duration of the study
  • Exclusion Criteria:
  • Prior history of, or known exposure to any form of B. anthracis or any anthrax immunization
  • Employees in an industry involved in contact with ruminant animals(slaughterhouse workers, handle the animal raw hides or raw wool, veterinary sciences involving ruminant animals, suspect exposure to any form of B. or anthrax), immunization producer and developer.
  • HIV positive or suspect
  • HAV, HBV, HCV positive or suspect
  • Prior history of, immunodeficiency or clinically active autoimmune disease
  • Subjects with a history of Guillain-Barre syndrome
  • Subjects with hemophilia or being treated with an anticoagulant who are at increased risk of serious bleeding during intramuscular injection
  • History or evidence of metastatic malignancy tumor for internal organs, blood or flesh
  • Medical significant hypersensitivity, idiosyncratic reaction related to any medical product included in study drug or with a history of anaphylaxis
  • Subjects who have had an acute fever exceeding a body temperature of 38.0℃ within 72 hours prior to the administration of the study vaccine, or who have had a symptom suspicious for acute febrile disease within 14 days prior to the administration of the study drug.
  • A person who has received a split vaccine, inactivated vaccine, or actived vaccine within four weeks prior to administration of a study drug
  • Subjects who have received or are scheduled for the treatment with the following drug within 120 days (except for inhaled, nasal or topical corticosteroid)
  • Systemic immunosuppressant therapy, radiotherapy, a high dose of steroid at the similar dose level
  • Blood-derived products including immunoglobulin
  • A person who has a history of drug abuse within 6 months prior to the administration of a study drug or suspected of taking drugs for fear of abuse through questionnaire and physical examination
  • Pregnant women and lactating women
  • A person whom the investigator determined unsuitable for the study

结局指标

主要结局

Step 2) Toxin Neutralization Antibody (by TNA assay) of GC1109

时间窗: at 4 weeks following infuse the drug 4 times

Percentage of subjects with an 0.56 or higher NF50 by evaluating Toxin Neutralization Antibody (by TNA assay) at 4 weeks following infuse the optimal dose of GC1109 4 times in healthy adults.

Step 1) Investigate the optimum volume of GC1109

时间窗: at 4 weeks following infuse the drug 3 times

Investigate the optimum volume of GC1109 to compare the subject ratio after seroconversion in each Anti-PA Ab by TNA at 4 weeks following infuse the drug 3 times with the immunogenicity of each treatment (GC1109 and placebo cohort) in healthy adults.

次要结局

  • Step 1) Percentage of subjects after seroconversion(for 4 weeks following infuse the drug 3 times)
  • Step 1) Compare the immunogenicity with the GMT by ELISA(for 4 weeks following infuse the drug 3 times)
  • Step 1), Step 2) Adverse Events(By 24 weeks following infuse the drug 4 times)
  • Step 2) GMT of Toxin Neutralization Antibody by TNA assay(By 24 weeks following infuse the drug 4 times)
  • Step 1) Check the Seroprotection antibody titer(for 4 weeks following infuse the drug 3 times)
  • Step 1) Seroconversion rate(for 4 weeks following infuse the drug 3 times)
  • Step 1) Compare the immunogenicity with GMT by TNA(for 4 weeks following infuse the drug 3 times)
  • Step 2)GMT of Anti-PA IgG by ELISA(By 24 weeks following infuse the drug 4 times)

研究者

申办方类型
Industry
责任方
Sponsor

研究点 (2)

Loading locations...

相似试验

A Study to Assess Dose-Response, Efficacy... | 临床试验