Clinical Trial of Freeze-dried Human Rabies Vaccine (Without Serum Vero Cells)
A Randomized, Blinded, Parallel Controlled Phase 3 Clinical Trial to Evaluate the Immunogenicity and Safety of Freeze-dried Human Rabies Vaccine (Without Serum Vero Cells) Administered to People Aged 10-60 Years With Different Immunization Procedures
1 other identifier
interventional
2,460
1 country
4
Brief Summary
This study was intended to explore the safety and immunogenicity of the test vaccine compared to the control vaccine. The trial consisted of two phases. Phase I used an open-ended design. Phase II used a randomized, blinded, parallel-controlled non-inferiority design with the same type of active vaccine, in which the control vaccine 5-dose group and the test vaccine 5 group were kept blinded throughout, the test vaccine 4-dose B group was kept blinded from the other three groups until visit 4 (D14), and the test vaccine 4-dose A group was kept blinded from the control vaccine 5-dose group and the test vaccine 5-dose group until visit 5 (D28).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_3
Started Aug 2023
Shorter than P25 for phase_3
4 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 23, 2023
CompletedFirst Posted
Study publicly available on registry
August 1, 2023
CompletedStudy Start
First participant enrolled
August 1, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 1, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
December 1, 2024
CompletedAugust 9, 2023
July 1, 2023
8 months
July 23, 2023
August 6, 2023
Conditions
Outcome Measures
Primary Outcomes (6)
Antibody SCR in 5-dose groups of test vaccine and 5-dose groups of control vaccine
Antibody Seroconversion rate in 5-dose groups of test vaccine and 5-dose groups of control vaccine
Day 14
Antibody GMC in 5-dose groups of test vaccine and 5-dose groups of control vaccine
Antibody Geometric Mean Concentration in 5-dose groups of test vaccine and 5-dose groups of control vaccine
Day 14
Antibody SCR in 4-dose groups of test vaccine and 5-dose groups of control vaccine
Antibody Seroconversion rate in 4-dose groups of test vaccine and 5-dose groups of control vaccine
Day 14
Antibody GMC in 4-dose groups of test vaccine and 5-dose groups of control vaccine
Antibody Geometric Mean Concentration in 4-dose groups of test vaccine and 5-dose groups of control vaccine
Day 14
Antibody SCR in 5-dose groups of test vaccine and 5-dose groups of control vaccine
Antibody Seroconversion rate in 5-dose groups of test vaccine and 5-dose groups of control vaccine
Day 42
Antibody SCR in 4-dose groups of test vaccine and 5-dose groups of control vaccine
Antibody Seroconversion rate in 4-dose groups of test vaccine and 5-dose groups of control vaccine
Day 42
Study Arms (4)
5-dose group of test vaccine
EXPERIMENTAL5-dose group of control vaccine
ACTIVE COMPARATOR4-dose A group of test vaccine
EXPERIMENTAL4-dose B group of test vaccine
EXPERIMENTALInterventions
Subjects will be vaccinated on days 0, 3, 7, 14, and 28
Subjects will be vaccinated on days 0, 3, 7, 14, and 28
Subjects will be vaccinated on days 0, 3, 7, 14
Subjects will be vaccinated on days 0, 3, 7, 28
Eligibility Criteria
You may qualify if:
- The age of the subject is 10-60 years old (≥10 years old, \<61 years old);
- Subjects aged 10-17 and their guardians can provide valid identification; subjects aged 18-60 can provide valid identification;
- Subjects aged 10-17 and at least one of their guardians voluntarily participate with informed consent, and sign the Informed Consent for minors and adults respectively; Subjects aged 18-60 voluntarily participate with informed consent and sign the adult version of Informed Consent; Basic reading and writing skills are required;
- If the subjects are WOCBP (women of childbearing potential), they should not be pregnant or breastfeeding, have a negative urine pregnancy test before vaccination, and have taken effective contraceptive measures within 2 weeks before being enrolled in this study; From enrollment in the study until 6 months after full exemption, no family planning and consent to use effective contraception during the study period. Effective forms of birth control include: oral contraceptives (excluding emergency contraceptives)Injectable or embedded contraception, sustained release topical contraceptives, hormonal patches, intrauterine devices, sterilization, abstinence, condoms (male), isolationMembrane, cervical cap, etc.;
- \* On the day of enrollment, armpit body temperature of subjects \>14 years old was \<37.3℃, and armpit body temperature of subjects \<14 years old was \<37.5℃;
- Adult subjects or minor subjects and their guardians shall comply with the requirements of the clinical study protocol.
You may not qualify if:
- A history of rabies vaccine immunization or rabies virus passive immunization was asked;
- A history of grade 2 or 3 injury in animals susceptible to rabies virus (cats, dogs, etc.) within 12 months prior to the first dose of vaccination (the assessment criteria was the Technical Guidelines for Rabies Prevention and Control (2016));
- Plan to participate in other clinical trials during the clinical study;
- Allergic to any component of the test vaccine; History of severe allergies that require medical intervention, such as anaphylactic shock, allergic laryngeal edema, anaphylactoid purpura, thrombocytopenic purpura, allergic necrosis reaction (Arthus reaction), severe urticaria, dyspnea, angioneurotic edema, etc.;
- Have been diagnosed with a congenital or acquired immunodeficiency disease, such as HIV infection, lymphoma, leukemia, systemic lupus erythematosus, rheumatoid arthritis, juvenile rheumatoid arthritis, inflammatory bowel disease, or other immune disease that the investigator has determined may affect the evaluation of the trial;
- Known or suspected serious medical conditions upon inquiry include: severe respiratory diseases, poorly controlled chronic diseases, severe liver and kidney diseases, severe cardiovascular diseases, malignant tumors, etc.;
- \* Medically unmanageable hypertension, such as systolic blood pressure \>120mmHg and/or diastolic blood pressure \>80mmHg in subjects 10 to 17 years of age prior to enrollment, systolic blood pressure of 140mmHg and/or diastolic blood pressure of 90mmHg in subjects 18 years of age and older;
- Coagulation dysfunction (e.g. coagulation factor deficiency, coagulation disorders, platelet abnormalities) or coagulation disorders diagnosed by a physician;
- Asplenia, functional asplenia, and any condition resulting in asplenia or splenectomy;
- Have received immunosuppressive therapy within 3 months prior to vaccination or plan to receive immunosuppressive therapy throughout the study period;
- Plan to receive such treatment within 30 days after the first dose to the full dose, such as long-term systemic glucocorticoid therapy (2 weeks or more at a dose of \>2mg/kg/ day or \>20mg/ day of prednisone or equivalent); Allow topical use (such as ointment, eye drops, inhalants or nasal sprays);
- \* Received immunoglobulins or blood-related products within 3 months prior to vaccination or plan to receive them throughout the study period;
- \* Acute illness or acute onset of chronic disease within 3 days prior to vaccination;
- \* Antipyretic, analgesic and anti-allergic drugs were used within 3 days prior to vaccination;
- \* Have received COVID-19 vaccine or live attenuated vaccine within 28 days prior to vaccination, and have received inactivated vaccines other than COVID-19 inactivated vaccines within 14 days prior to vaccination;
- +15 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (4)
Sichuan Center for Disease Control and Prevention
Chengdu, Sichuan, 610041, China
Center for Disease Control and Prevention, Mianyang City
Mianyang, Sichuan, 621000, China
Shizhong District, Neijiang City Center for Disease Control and Prevention
Neijiang, Sichuan, 511002, China
Rongxian Center for Disease Control and Prevention
Zigong, Sichuan, 643199, China
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 23, 2023
First Posted
August 1, 2023
Study Start
August 1, 2023
Primary Completion
April 1, 2024
Study Completion
December 1, 2024
Last Updated
August 9, 2023
Record last verified: 2023-07