Clinical Trial of Freeze-dried Human Rabies Vaccine (Human Diploid Cells)

Phase
Recruitment status
Not yet recruiting
Participants
Lead sponsor
Ningbo Rongan Biological Pharmaceutical Co., Ltd.
Start date
Number of sites

Summary
The Phase 3 clinical trial of freeze-dried human rabies vaccine (human diploid cells) adopted a randomized, blinded, parallel control,non-inferiority design,and administered vaccines to participants aged 10 to 60 years with different immunization schedules (5-dose schedule group, two simple 4-dose schedule groups, and 2-1-1 schedule group) to evaluate the immunogenicity and safety of the vaccine.
Short title
Clinical Trial of Freeze-dried Human Rabies Vaccine (Human Diploid Cells)
Official title
A Randomized, Blinded, Parallel Controlled, Non-inferiority Design Phase III Clinical Trial to Evaluate the Immunogenicity and Safety of Freeze-dried Human Rabies Vaccine (Human Diploid Cells) Administered to Participants Aged 10 to 60 Years With Different Immunization Schedules

Control arm
Active comparator
Registry reports results
Listing at source
Recruitment status
Not yet recruiting
Phase
Study type
Interventional

Completion date
First posted
Registry last updated
Primary completion date
Start date

Participants
Participant count basis
Planned participants
Protocol amendments
Randomisation ratio
Number of sites

Registry sponsor category
Lead sponsor
Ningbo Rongan Biological Pharmaceutical Co., Ltd.
Source registry
ClinicalTrials.gov

Registry ID
ClinicalTrials.gov ID
Registry record
Open registry record

Allocation
Randomised
Model
Parallel groups
Purpose
Prevention
Masking
Quadruple masking
Masked roles
Participants, Care providers, Investigators, Outcome assessors
Sources for study design

  1. Antibody SCR for the 5-dose schedule group of the trial vaccine and the 5-dose schedule group of the control vaccine

    Timeframe: 14 days after the first dose

    Antibody seroconversion rates in the 5-dose schedule group of the trial vaccine and the 5-dose control vaccine group.

  2. Antibody GMC for the 5-dose schedule group of the trial vaccine and the 5-dose schedule group of the control vaccine

    Timeframe: 14 days after the first dose

    Antibody Geometric Mean Concentration in the 5-dose schedule group of the trial vaccine and the 5-dose control vaccine group.

  3. Antibody SCR for the simple 4-dose schedule group 1 of the trial vaccine and the 5-dose schedule group of the control vaccine

    Timeframe: 14 days after the first dose

    Antibody seroconversion rates in the simple 4-dose schedule group 1 of the trial vaccine and in the 5-dose group of the control vaccine.

  4. Antibody GMC for the simple 4-dose schedule group 1 of the trial vaccine and the 5-dose schedule of the control vaccine

    Timeframe: 14 days after the first dose

    Antibody Geometric Mean Concentration in the simple 4-dose schedule group 1 of the trial vaccine and in the 5-dose group of the control vaccine.

  5. Antibody SCR for the simple 4-dose schedule group 2 of the trial vaccine and the 5-dose schedule group of the control vaccine

    Timeframe: 14 days after the first dose

    Antibody seroconversion rates in the simple 4-dose schedule group 2 of the trial vaccine and in the 5-dose group of the control vaccine.

  6. Antibody GMC for the simple 4-dose schedule group 2 of the trial vaccine and the 5-dose schedule group of the control vaccine

    Timeframe: 14 days after the first dose

    Antibody Geometric Mean Concentration in the simple 4-dose schedule group 2 of the trial vaccine and in the 5-dose group of the control vaccine.

  7. Antibody SCR for the 2-1-1 schedule group of the trial vaccine and the 5-dose schedule group of the control vaccine

    Timeframe: 14 days after the first dose

    Antibody seroconversion rates in the 2-1-1 schedule group of the trial vaccine and in the 5-dose group of the control vaccine.

  8. Antibody GMC for the 2-1-1 schedule group of the trial vaccine and the 5-dose schedule group of the control vaccine

    Timeframe: 14 days after the first dose

    Antibody Geometric Mean Concentration in the 2-1-1 schedule group of the trial vaccine and in the 5-dose group of the control vaccine.

  9. Antibody SCR for the 5-dose schedule group of the trial vaccine and the 5-dose schedule group of the control vaccine

    Timeframe: 14 days after full vaccination

    Antibody seroconversion rates in the 5-dose schedule group of the trial vaccine and the 5-dose control vaccine group.

  10. Antibody SCR for the simple 4-dose schedule group 1 of the trial vaccine and the 5-dose schedule group of the control vaccine

    Timeframe: 14 days after full vaccination

    Antibody seroconversion rates in the simple 4-dose schedule group 1 of the trial vaccine and in the 5-dose group of the control vaccine.

  11. Antibody SCR for the simple 4-dose schedule group 2 of the trial vaccine and the 5-dose schedule group of the control vaccine

    Timeframe: 14 days after full vaccination

    Antibody seroconversion rates in the simple 4-dose schedule group 2 of the trial vaccine and in the 5-dose group of the control vaccine.

  12. Antibody SCR for the 2-1-1 schedule group of the trial vaccine and the 5-dose schedule group of the control vaccine

    Timeframe: 14 days after full vaccination

    Antibody seroconversion rates in the 2-1-1 schedule group of the trial vaccine and in the 5-dose group of the control vaccine.

Sources for outcomes

Sex
All
Age groups
Children, Adults
Minimum age
10 Years
Maximum age
60 Years
Healthy volunteers
Yes

  • (1) The participants' ages range from 10 to 60 years old (≥10 years old and <61 years old).

    (2) Participants aged 10 to 17 and their guardians can provide valid identification documents, and participants aged 18 to 60 can provide their own valid identification documents.

    (3) Participants aged 10 to 17 and their guardians, as well as participants aged 18 to 60, can sign the informed consent form voluntarily to participate in the trial, fully understand the trial procedures, the risks of participating in the trial, and other intervention measures that can be chosen if they do not participate in the trial, etc.

    (4) Possess basic reading and writing skills, and be capable of reading, understanding and filling in diary cards and contact cards; (5) Female participants with fertility must also meet the following conditions: 1) They have taken effective contraceptive measures within two weeks prior to participating in this trial; 2) Have no plans to have children within 6 months from the start of participating in this trial until the full vaccination. 3) Understand and agree to take effective contraceptive measures during the trial period (from the first dose to within 6 months after the full vaccination). Effective contraceptive measures include: condoms (for men), intrauterine devices, oral contraceptives (excluding emergency contraceptives), sterilization, abstention, injection or implantable contraception, sustained-release local contraceptives, hormone patches, diaphragms, cervical caps, etc. External ejaculation and safe period contraception are not regarded as effective contraceptive measures.

  • For the standards marked with *, if the participants have the circumstances stipulated in the standard, the visit can be rescheduled when they no longer have these circumstances

    1. After inquiry, it is found that there is a history of rabies vaccination or the use of passive immunization preparations for rabies virus.
    2. There was a history of injury from rabies virus-susceptible animals (such as cats and dogs) before the first dose of vaccination;
    3. The axillary body temperature of the participants on the day of enrollment was ≥37.3℃*;
    4. Women who have a positive urine pregnancy trial before vaccination (on the day of vaccination), or who, after assessment, cannot rule out the possibility of pregnancy or are breastfeeding;
    5. Hypertension that cannot be controlled by medication, such as systolic blood pressure ≥160mmHg and/or diastolic blood pressure ≥100mmHg for participants aged 18 years and above before enrollment;
    6. Allergy to any component of the vaccine used in the trial, such as human albumin, sucrose, or maltose;
    7. Those with a history of severe allergies in the past, such as anaphylactic shock, allergic laryngeal edema, allergic purpura, local allergic necrosis reaction (Arthus reaction), severe urticaria, allergic bronchitis, acquired angioedema, etc.
    8. Has been diagnosed with congenital or acquired immune system diseases, such as the Human Immunodeficiency Virus. HIV infection, lymphoma, leukemia, systemic lupus erythematosus, rheumatoid arthritis, juvenile rheumatoid arthritis, inflammatory bowel disease or other immune diseases that the researcher deems likely to affect the trial assessment;
    9. Known or suspected of having serious diseases, including severe respiratory diseases, liver and kidney diseases, cardiovascular and cerebrovascular diseases, malignant tumors, and other chronic diseases that are poorly controlled, etc.
    10. Abnormal coagulation function (such as deficiency of coagulation factors, coagulation disorders, abnormal platelets) or coagulation disorders diagnosed by a doctor;
    11. Anplenia or functional anplenia, as well as anplenia or splenectomy caused by any circumstances;
    12. Previous or current clearly diagnosed neurological or mental disorders (including but not limited to dementia, schizophrenia, bipolar disorder, etc.) or confirmed epilepsy, convulsions, as well as other neurological or mental disorders that the researcher deems unsuitable for participation in this trial;
    13. It is planned to receive such treatment from the first dose of vaccination to 30 days after the full vaccination course, such as long-term systemic glucocorticoid therapy (used continuously for 2 weeks or more, at a dose of ³2mg/kg/ day or ³20mg/ day prednisone or equivalent doses); Local medications (such as ointments, eye drops, inhalants or nasal sprays) are allowed;
    14. Have received or plan to receive immunoenhancers or inhibitors, immunoglobulins or blood-related products throughout the trial period within 3 months prior to enrollment;
    15. Have received attenuated live vaccines within 14 days before enrollment, and subunit vaccines or inactivated vaccines within 7 days *;
    16. Within 3 days before enrollment, have suffered from acute diseases or be in the acute attack stage of chronic diseases *;
    17. Antipyretic, analgesic and antihistamine drugs were used within 3 days before enrollment.
    18. Currently participating in or planning to participate in other clinical trials during this clinical trial;
    19. According to the researcher's judgment, due to various medical, psychological, social conditions or other circumstances contrary to the trial protocol, or the participants' inability to comply with the requirements of the trial protocol.
Sources for eligibility

  • Henan Provincial Center for Disease Control and PreventionZhengzhou, China
Sources for sites

Related records

Drugs (1)

Lead sponsors (1)

Conditions (1)