A Phase 2, Single-Blind, Randomized Study of Safety and Immunogenicity Following Vaccination With Single or Double Doses of HEPLISAV™ in Adults With End-Stage Renal Disease
试验速览
- 阶段
- 2 期
- 状态
- 终止
- 入组人数
- 41
- 试验地点
- 6
- 主要终点
- Occurrence of adverse events and local and systemic reaction rates
研究概览
简要总结
The purpose of this study is to find out if a new investigational hepatitis B virus (HBV) vaccine, HEPLISAV™, is safe and effective for end-stage renal disease (ESRD) patients. Two dose levels will be studied: a single dose and a double dose. We expect both dose levels to safely immunize patients against HBV. The study will determine which dose does this best.
详细描述
Infection with hepatitis B virus (HBV) is a major global health problem. Worldwide, it is estimated that 2 billion people have been infected previously and 350 million are chronically infected. While acute HBV infection is associated with significant illness, the risk of chronic infection is of great importance since 5-10% of infected adults will not clear the infection after the initial phase of the illness. About 25% of people who do not initially clear the infection will later develop chronic active hepatitis.
This study will evaluate the safety and immunogenicity of HEPLISAV™ when administered to adults who have end-stage renal disease (glomerular filtration rate [GFR] ≤ 45 mL/min). Once subjects have been consented, screened, and randomized to treatment, subjects will receive a total of three injections over a 24-week period, with follow-up visits at 28 and 50 weeks. Subjects will receive 1 of the following 2 regimens:
- HEPLISAV™ single dose at Day 0, 4 weeks (1 month) and 24 weeks (6 months)
- HEPLISAV™ double dose at Day 0, 4 weeks (1 month) and 24 weeks (6 months)
Safety and tolerability will be evaluated by occurrence of adverse events, periodic laboratory tests, vital signs, and local and systemic reactogenicity.
Immunogenicity will be evaluated by the proportion of subjects exhibiting a seroprotective immune response (anti-hepatitis B surface antigen antibodies [anti-HBsAg] ≥ 10 milli-international unit (mIU)/mL) at Weeks 4, 12, 24, 28 and 50.
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
- Single (Participant)
入排标准
- 年龄范围
- 40 Years 至 70 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Willing and able to give written informed consent
- •Have a glomerular filtration rate (GFR) ≤ 45 mL/min
- •Have an expectation of going on hemodialysis or are already on hemodialysis
- •Is serum negative for hepatitis B virus (HBV) antibodies, hepatitis C virus (HCV), and human immunodeficiency virus (HIV)
- •Have repeated resting blood pressure measurements ≤ 165/105 mmHg
- •Women of childbearing potential must be consistently using a highly effective method of birth control
排除标准
- •Women who are pregnant, breastfeeding or planning a pregnancy
- •Any previous HBV infection
- •Previous vaccination (1 or more doses) with any HBV vaccine
- •Any previous autoimmune diseases
- •Have a diagnosis of chronic renal failure due to autoimmune disease
- •Are at high risk for recent exposure to HBV, HCV or HIV
- •Received any antibodies within 3 months prior to study entry
- •Ever received an injection with DNA plasmids or oligonucleotides
- •Received any vaccines within 4 weeks prior to study entry
- •Received any other investigational medicinal agent within 4 weeks prior to study entry
研究组 & 干预措施
1018 ISS-HBsAg-Double
Double dose (6000 µg 1018 ISS + 40 µg rHBsAg)
干预措施: 1018 ISS-HBsAg-Double (Biological)
1018 ISS-HBsAg-Single
Single dose (3000 µg 1018 ISS + 20 µg rHBsAg)
干预措施: 1018 ISS-HBsAg-Single (Biological)
结局指标
主要结局
Occurrence of adverse events and local and systemic reaction rates
时间窗: 28 weeks
次要结局
- Portion of subjects who have a seroprotective immune response (anti-HBsAg ≥ 10 mIU/ml)(50 weeks)