To Evaluate the Immunogenicity and Safety of Two Different Immunization Schedules of Rabies Vaccine (Vero Cell)

Study Overview
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Brief Summary
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To evaluate the safety and immunogenicity of lyophilized human rabies vaccine (Vero cell) developed by Hualan Biological in healthy people aged 9 to 65 years with two different immunization schedules.

Detailed Description
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The trial to assess the rabies vaccine (Vero cells) in healthy group of 9   65 years old after inoculation, the first dose after 14 days and 14 days after inoculation 5 agent group turn antibody positive rate of bad effect on 5 agent in the control group; The safety profile, seroconversion rate, and geometric mean concentration of the four-dose vaccine were noninferior to those of the five-dose regimen at 14 days after the first dose. More people aged 9-65 in the first agent free after 7 days, 14 days and 14 days after inoculation, 5 patients and 5 doses in the control group, four patients and 5 doses group antibody positive rate, GMC and GMC growth multiples have differences. To evaluate whether the seroconversion rate of subjects in the 4-dose experimental group reached 100% 14 days after the whole course of vaccination.

Official Title
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Evaluation With Rabies Vaccine (Vero Cell) of Two Different Immune Procedure in the Healthy Crowd the Immunogenicity and Safety of Randomized, Blinded, Similar Vaccine Against Ⅲ Phase of Clinical Trials

Conditions
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Rabies Human

Intervention / Treatment
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* Biological: Control vaccine
* Biological: Experimental vaccine


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: 9 to 65 years old healthy residents; volunteered for the experiment and signed informed consent; the subjects or their guardians can comply with the requirements of the clinical trial protocol; have not received rabies vaccination at any time; nearly six months has not been mammals bite, scratch; not participating in clinical trials of other drugs; No use of human immunoglobulin or other products in the past six months. Exclusion Criteria: First needle exclusion: have allergies, convulsions, seizures, mental and nervous system, such as history, or family history of epilepsy; Allergic to the main ingredient of the investigational vaccine; known to people with poor immune function damage or the tumor, spleen; Axillary temperature >38.0℃ within 7 days due to acute febrile illness; Patients with axillary body temperature > 37.0℃; Severe chronic diseases such as congenital malformation, developmental disorder or severe cardiovascular disease, diabetes mellitus, hypertension that cannot be stabilized by drugs, liver and kidney diseases, and malignant tumors; patients with acute and chronic infectious diseases, active infections, severe asthma, infectious skin diseases; pregnant and lactating women; Any circumstances that the investigator believes may affect the assessment of the trial. Subsequent needle exclusions: any serious adverse event causally related to vaccination; new findings that meet the first dose exclusion criteria; the researchers think that may affect test evaluation of any situation.

Ages Eligible for Study
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Minimum Age: 9 Years
Maximum Age: 65 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: Health Services Research
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: Lyophilized rabies vaccine for human use (Vero cell) and control vaccine
Masking: Quadruple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Experimental vaccines and vaccine<br>A total of 1956 subjects were randomly divided into three groups at a ratio of 1:1:1, 652 subjects in each group were vaccinated with the test vaccine or the control vaccine on a schedule of 0, 3, 7, 14, 28 days (a total of 5 doses). Blood samples were collected from the subjects for antibody detection on 0, 7/14, 35/42 days, respectively. | Biological: Control vaccine<br>* A group of 652 subjects were vaccinated with the control vaccine at 0, 3, 7, 14 and 28 days (5 doses in total). Blood samples were collected from the subjects at 0, 7/14 and 35/42 days for antibody detection.<br>Biological: Experimental vaccine<br>* A total of 652 subjects received 5 doses of the vaccine at 0, 3, 7, 14 and 28 days. Blood samples were collected on 0, 7/14 and 35/42 days for antibody detection.<br>|
| Active Comparator: experimental vaccines<br>An additional group of 652 people received the trial vaccine in a 0 -, 7 -, and 21-day schedule (two first doses for a total of four doses). Blood samples were collected at 0, 7/14 and 35/42 days for antibody detection, and all subjects were systematically observed for safety. | Biological: Experimental vaccine<br>* A total of 652 subjects received 5 doses of the vaccine at 0, 3, 7, 14 and 28 days. Blood samples were collected on 0, 7/14 and 35/42 days for antibody detection.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| 1956 subjects accept the observation of local adverse reaction according to Guidelines for grading standard of adverse reaction of clinical trial of vaccine used for prevention | Tenderness, pruritus, induration, redness, swelling and its degree of size and disturbance of body activity at the inoculation site | Every needle 30 days after vaccination | 
| 1956 subjects accept the observation of local adverse reaction according to Guidelines for grading standard of adverse reaction of clinical trial of vaccine used for prevention | Tenderness, pruritus, induration, redness, swelling and its degree of size and disturbance of body activity at the inoculation site | Vaccinations 31 days to 180 days | 
| 1956 subjects accept the observation of systemic adverse reactions according to Guidelines for grading standard of adverse reaction of clinical trial of vaccine used for prevention. | Fever, allergy, headache, fatigue, nausea and vomiting, diarrhea, muscle pain, arthralgia and so on were observed | Every needle 30 days after vaccination | 
| 1956 subjects accept the observation of systemic adverse reactions according to Guidelines for grading standard of adverse reaction of clinical trial of vaccine used for prevention. | Fever, allergy, headache, fatigue, nausea and vomiting, diarrhea, muscle pain, arthralgia and so on were observed | Vaccinations 31 days to 180 days | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The immunogenicity was tested by immunofluorescence staining | The rabies virus antibody was detected by immunofluorescence focus method. The positive rate was defined as the serum antibody concentration ≥0.5IU/ml | 5 agent group gathering subjects were 0, 7, 14, 42 days of blood samples | 
| The immunogenicity was tested by immunofluorescence staining | The rabies virus antibody was detected by immunofluorescence focus method. The positive rate was defined as the serum antibody concentration ≥0.5IU/ml | Blood samples were collected on day 0, 7, 14 and 35 in the 4-dose group | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Antibody Titer