Safety and Immunogenicity of Recombinant Herpes Zoster Vaccine (CHO Cells) in Healthy Subjects Aged 18 Years and Above
- Summary
- The purposes of the study are to evaluate the safety and tolerability of different dose levels of recombinant herpes zoster vaccine (CHO Cells) with 2 doses at 2-month intervals in healthy subjects aged 18 years and older, and to preliminarily explore immunogenicity.
- Short title
- Safety and Immunogenicity of Recombinant Herpes Zoster Vaccine (CHO Cells) in Healthy Subjects Aged 18 Years and Above
- Official title
- A Phase I, Single Center, Randomized, Blinded, Controlled Clinical Trial to Evaluate the Safety, Tolerability and Preliminary Immunogenicity of Recombinant Herpes Zoster Vaccine (CHO Cells) in Healthy Subjects Aged 18 Years and Above
- Control arm
- Placebo
- Registry reports results
- Listing at source
- Listed
- Recruitment status
- Completed
- Phase
- Phase 1
- Study type
- Interventional
- Completion date
- 2025-09-10
- First posted
- 2022-12-05
- Registry last updated
- 2026-10-15
- Primary completion date
- 2025-05-23
- Start date
- 2022-12-07
- Actual participants
- Participants
- Participant count basis
- Actual
- Protocol amendments
- Randomisation ratio
- 2:2:1
- Number of sites
- Data monitoring committee
- Registry sponsor category
- Industry
- Lead sponsor
- MAXVAX Biotechnology Limited Liability Company
- Source registry
- ClinicalTrials.gov
- Registry ID
- NCT05636436
- ClinicalTrials.gov ID
- NCT05636436
- Registry record
- Open registry record
- Allocation
- Randomised
- Model
- Parallel groups
- Purpose
- Prevention
- Masking
- Quadruple masking
- Masked roles
- Participants, Care providers, Investigators, Outcome assessors
The incidence and severity of adverse events
Timeframe: Within 30 minutes after each vaccination.
Incidence and severity of adverse events within 30 minutes after each vaccination. The severity of solicited and unsolicited adverse events will be graded from grade 1 to grade 4, other adverse events will be graded from grade 1 to grade 5.
The incidence and severity of adverse events
Timeframe: Within 7 days after each vaccination.
Incidence and severity of adverse events within 7 days after each vaccination. The severity of solicited and unsolicited adverse events will be graded from grade 1 to grade 4, other adverse events will be graded from grade 1 to grade 5.
The incidence and severity of adverse events
Timeframe: Day 8 to 30 after each vaccination.
Incidence and severity of adverse events during Day 8 to 30 after each vaccination. The severity of solicited and unsolicited adverse events will be graded from grade 1 to grade 4, other adverse events will be graded from grade 1 to grade 5.
The incidence and severity of adverse events
Timeframe: Within 30 days after each vaccination.
Incidence and severity of adverse events within 30 days after each vaccination. The severity of solicited and unsolicited adverse events will be graded from grade 1 to grade 4, other adverse events will be graded from grade 1 to grade 5.
Incidence of abnormal and clinically significant laboratory test results
Timeframe: Day 4 after each vaccination .
Laboratory test includes hematology, blood biochemistry and urine analysis.
Incidence of Serious Adverse Event
Timeframe: From the first vaccination to 12 months after full vaccination (From Day 0 to Day 420).
Incidence of Serious Adverse Event (SAE) from the first vaccination to 12 months after full vaccination.
Potential Immune Mediated Disorder
Timeframe: From the first vaccination to 12 months after full vaccination (From Day 0 to Day 420).
Incidence of Potential Immune Mediated Disorder (pIMD) from the first vaccination to 12 months after full vaccination.
Geometric mean concentration (GMC) of anti-gE antibody and anti-VZV antibody
Timeframe: Prior to each vaccination (Day 0, Day 60).
Measured by ELISA.
Geometric mean concentration (GMC) of anti-gE antibody and anti-VZV antibody
Timeframe: Day 14 after each vaccination (Day 14, Day 74).
Measured by ELISA.
Geometric mean concentration (GMC) of anti-gE antibody and anti-VZV antibody
Timeframe: Month 1 after each vaccination (Day 30, Day 90).
Measured by ELISA.
Geometric mean concentration (GMC) of anti-gE antibody and anti-VZV antibody
Timeframe: Month 6 and 12 after the second vaccination (Day 240, Day 420).
Measured by ELISA.
Seroconversion rate of anti-gE antibody and anti-VZV antibody
Timeframe: Prior to the second vaccination (Day 60).
Seroconversion is defined as a ≥4 fold rise in antibody concentration compared with baseline for those antibody concentration was ≥Cut-off value at baseline; or a ≥4 fold Cut-off value in antibody concentration compared with baseline for those antibody concentration was \<Cut-off value at baseline.
Seroconversion rate of anti-gE antibody and anti-VZV antibody
Timeframe: Day 14 after each vaccination (Day 14, Day 74).
Seroconversion is defined as a ≥4 fold rise in antibody concentration compared with baseline for those antibody concentration was ≥Cut-off value at baseline; or a ≥4 fold Cut-off value in antibody concentration compared with baseline for those antibody concentration was \<Cut-off value at baseline.
Seroconversion rate of anti-gE antibody and anti-VZV antibody
Timeframe: Month 1 after each vaccination (Day 30, Day 90).
Seroconversion is defined as a ≥4 fold rise in antibody concentration compared with baseline for those antibody concentration was ≥Cut-off value at baseline; or a ≥4 fold Cut-off value in antibody concentration compared with baseline for those antibody concentration was \<Cut-off value at baseline.
Positive rate of anti-gE antibody and anti-VZV antibody
Timeframe: Prior to each vaccination (Day 0, Day 60).
Positive rate is defined as percentage of subjects with antibody concentration ≥Cut-off value.
Positive rate of anti-gE antibody and anti-VZV antibody
Timeframe: Day 14 after each vaccination (Day 14, Day 74).
Positive rate is defined as percentage of subjects with antibody concentration ≥Cut-off value.
Positive rate of anti-gE antibody and anti-VZV antibody
Timeframe: Month 1 after each vaccination (Day 30, Day 90).
Positive rate is defined as percentage of subjects with antibody concentration ≥Cut-off value.
Positive rate of anti-gE antibody and anti-VZV antibody
Timeframe: Month 6 and 12 after the second vaccination (Day 240, Day 420).
Positive rate is defined as percentage of subjects with antibody concentration ≥Cut-off value.
Geometric mean increase(GMI) of anti-gE antibody and anti-VZV antibody concentration
Timeframe: Prior to the second vaccination (Day 60).
The antibody concentration prior to the second vaccination compared with that at baseline (Day 0).
Geometric mean increase(GMI) of anti-gE antibody and anti-VZV antibody concentration
Timeframe: Day 14 after each vaccination (Day 14, Day 74).
The antibody concentration at Day 14 after each vaccination compared with that at baseline (Day 0).
Geometric mean increase(GMI) of anti-gE antibody and anti-VZV antibody concentration
Timeframe: Month 1 after each vaccination (Day 30, Day 90)
The antibody concentration at 1 month after each vaccination compared with that at baseline (Day 0).
Four-fold increase rate of the anti-gE antibody and anti-VZV antibody concentration
Timeframe: Prior to the second vaccination (Day 60).
The antibody concentration prior to the second vaccination compared with that at baseline (Day 0).
Four-fold increase rate of the anti-gE antibody and anti-VZV antibody concentration
Timeframe: Day 14 after each vaccination (Day 14, Day 74).
The antibody concentration at Day 14 after each vaccination compared with that at baseline (Day 0).
Four-fold increase rate of the anti-gE antibody and anti-VZV antibody concentration
Timeframe: Month 1 after each vaccination (Day 30, Day 90).
The antibody concentration at month 1 after each vaccination compared with that at baseline (Day 0).
Frequency of gE-specific CD4+ T-cells expressing at least 1 Immunological activation marker
Timeframe: Prior to the first vaccination (Day 0).
The analysis focused on CD4+ T-cells expressing at least 1 immunological activation marker among Interferon gamma (IFN-γ), Interleukin 2 (IL-2), Tumour Necrosis Factor alpha (TNF-α) and CD40 Ligand (CD40L).
Frequency of gE-specific CD4+ T-cells expressing at least 1 Immunological activation marker
Timeframe: Month 1 after the second vaccination (Day 90).
The analysis focused on CD4+ T-cells expressing at least 1 immunological activation marker among Interferon gamma (IFN-γ), Interleukin 2 (IL-2), Tumour Necrosis Factor alpha (TNF-α) and CD40 Ligand (CD40L).
Frequency of gE-specific CD4+ T-cells expressing at least 1 Immunological activation marker
Timeframe: Month 6, 12 after the second vaccination (Day 240, Day 420).
The analysis focused on CD4+ T-cells expressing at least 1 immunological activation marker among Interferon gamma (IFN-γ), Interleukin 2 (IL-2), Tumour Necrosis Factor alpha (TNF-α) and CD40 Ligand (CD40L).
Cellular immune response
Timeframe: Prior to the first vaccination (Day 0).
Cellular immune response is defined as the frequency of gE-specific CD4+ T-cells (expressing at least 1 Immunological activation marker) ≥2 fold increase compared with baseline for those the frequency of gE-specific CD4+ T-cells ≥Cut-off value at baseline; or the frequency of gE-specific CD4+ T-cells (expressing at least 1 Immunological activation marker) ≥Cut-off value for those the frequency of gE-specific CD4+ T-cells \<Cut-off value at baseline.
Cellular immune response
Timeframe: Month 1 after the second vaccination (Day 90).
Cellular immune response is defined as the frequency of gE-specific CD4+ T-cells (expressing at least 1 Immunological activation marker) ≥2 fold increase compared with baseline for those the frequency of gE-specific CD4+ T-cells ≥Cut-off value at baseline; or the frequency of gE-specific CD4+ T-cells (expressing at least 1 Immunological activation marker) ≥Cut-off value for those the frequency of gE-specific CD4+ T-cells \<Cut-off value at baseline.
Cellular immune response
Timeframe: Month 6, 12 after the second vaccination (Day 240, Day 420)
Cellular immune response is defined as the frequency of gE-specific CD4+ T-cells (expressing at least 1 Immunological activation marker) ≥2 fold increase compared with baseline for those the frequency of gE-specific CD4+ T-cells ≥Cut-off value at baseline; or the frequency of gE-specific CD4+ T-cells (expressing at least 1 Immunological activation marker) ≥Cut-off value for those the frequency of gE-specific CD4+ T-cells \<Cut-off value at baseline.
- Sex
- All
- Age groups
- Adults, Older adults
- Minimum age
- 18 Years
- Healthy volunteers
- Yes
- Permanent residents aged 18 years and above;
- Subjects voluntarily agree to participate in the study and signed an informed consent;
- Be able to participate in all scheduled visits and comply with the protocol requirements.
- Axillary temperature>37.0℃;
- History of herpes zoster within 5 years before vaccination;
- Prior vaccination with chickenpox vaccine or herpes zoster vaccine;
- Female participant who is pregnant ( urine pregnancy test was positive) or breastfeeding, or has pregnancy plans within 1 year after the last vaccination;
- Receipt of live vaccine within 28 days, or any other vaccine within 14 days prior to vaccination;
- Receipt of immunoglobulin or intravenous immunoglobulin within 3 months before vaccination;
- Acute diseases or acute exacerbation of chronic disease within 3 days before vaccination;
- A known allergy to any components of the study vaccine (especially allergic to aminoglycoside antibiotics), or history of severe allergy to any previous vaccination;
- History of convulsions, epilepsy, encephalopathy (such as congenital brain dysplasia, brain trauma, brain tumor, cerebral hemorrhage, cerebral infarction, brain infection disease, nerve tissue damage caused by chemical drug poisoning, etc.) or mental illness and family history;
- Asplenia or functional asplenia, or splenectomy caused by any condition;
- Primary or secondary impairment of immune function or diagnosed congenital or acquired immunodeficiency, human immunodeficiency virus (HIV) infection, lymphoma, leukemia, systemic lupus erythematosus (SLE), rheumatoid arthritis, juvenile rheumatoid arthritis (JRA), inflammatory bowel disease or other autoimmune diseases;
- Receipt of immunosuppressive therapy within 3 months before vaccination (such as long-term use of systemic glucocorticoid ≥14 days, dose ≥2mg/kg/day or ≥20mg/day prednisone or equivalent dose), but inhaled, intra-articular and topical steroids are acceptable;
- Severe cardiovascular disease(eg. Pulmonary heart disease, Pulmonary Edema); Severe liver or kidney disease; or diabetes with complication;
- History of thrombocytopenia or other coagulation disorders, which may cause intramuscular injection contraindications;
- Abnormal blood pressure during physical examination before vaccination (systolic pressure ≥ 140 mmHg and/or diastolic pressure ≥ 90 mmHg);
- Abnormal and clinically significant laboratory test results as determined by the investigator before vaccination;
- Current or history of alcohol and/or drug abuse;
- Any condition that, in the opinion the investigator, may affect the safety of the subject or the evaluation of the study results.
- Yanjin District Center for Disease Control and PreventionXinxiang, China
Related records
Drugs (1)
Collaborators (1)
- Henan Center for Disease Control and Prevention
Lead sponsors (1)
Conditions (1)
- Herpes zoster Primary condition