Clinical trial
Inactivated Bivalent Enterovirus Vaccine Phase I/II Clinical Trial: Open-Label Observation in Healthy Adults and Children, and Randomized, Double-Blind, Controlled Clinical Trial in Children
Name
PRO-EV71/CA16-1001
Description
The Phase I clinical trial is divided into two parts. The first part uses an open-label design, while the second part uses a randomized, double-blind, and controlled design. The goal of this clinical trial is to evaluate the tolerability and safety of a bivalent (EV71/CA16, Enterovirus 71/Coxsackievirus A16) inactivated enterovirus vaccine (Vero cell) developed by Sinovac. The vaccine will be administered to healthy adults, children aged 6 to 12 years, and children aged 6 to 71 months.
The Phase II clinical trial will also use a randomized, double-blind, and controlled design to evaluate the safety and immunogenicity of the same bivalent inactivated enterovirus vaccine (Vero cell) developed by Sinovac. This trial will involve healthy children aged 6 to 71 months.
Trial arms
Trial start
2023-09-20
Estimated PCD
2024-12-17
Trial end
2025-04-10
Status
Recruiting
Phase
Early phase I
Treatment
low dose Bivalent Enterovirus Vaccine (Vero Cell), Inactivated
Bivalent Enterovirus Vaccine (Vero Cell), Inactivated antigen content: EV71 480 U-CA16 600 SU/0.5 ml
Arms:
low-dose experimental group
medium dose Bivalent Enterovirus Vaccine (Vero Cell), Inactivated
Bivalent Enterovirus Vaccine (Vero Cell), Inactivated antigen content: EV71 960 U-CA16 600 SU/0.5 ml
Arms:
medium-dose experimental group
high dose Bivalent Enterovirus Vaccine (Vero Cell), Inactivated
Bivalent Enterovirus Vaccine (Vero Cell), Inactivated antigen content: EV71 1920U-CA16 1200SU/0.5ml
Arms:
high-dose experimental group
Enterovirus type EV71 vaccine (Vero cell), Inactivated
Enterovirus type EV71 vaccine (Vero cell), Inactivated (Sinovac)
Arms:
Active control group
Size
744
Primary endpoint
Phase Ⅰ: Based on adverse events, evaluate the safety of the trial vaccine among participants in different age groups
30 days
Phase Ⅱ: Evaluate the immunogenicity of the trial vaccine in the target population.
30 days
Eligibility criteria
Inclusion Criteria:
* Healthy participants aged 18-59 years, 6-12 years, and 6-71 months.
* Participants and/or their guardians can understand and voluntarily sign the informed consent form (participants aged 8-12 years require dual signatures from both participants and their guardians).
* Willing and able to comply with all visit schedules, sample collection, vaccine administration, and other trial procedures.
* Provide legal identification of the participants and/or their guardians.
Exclusion Criteria:
* History of hand, foot, and mouth disease or EV71 vaccination.
* Known severe allergy to the vaccine or vaccine components, such as urticaria, respiratory distress, and angioedema.
* Congenital abnormalities or developmental disorders, genetic defects (such as Down syndrome, thalassemia, or G6PD deficiency), severe malnutrition, etc.
* Based on medical history and physical examination, the presence of severe chronic diseases, severe cardiovascular diseases, uncontrolled hypertension or diabetes, liver or kidney diseases, etc.
* Based on medical history and physical examination, the presence of autoimmune diseases, immunodeficiency diseases, and/or blood diseases (including but not limited to systemic lupus erythematosus, ankylosing spondylitis, thyroidectomy, autoimmune thyroid disease, any form of malignancy, asplenia, functional asplenia).
* Based on medical history and physical examination, abnormal coagulation function (such as coagulation factor deficiency, coagulation disorders, platelet abnormalities) or obvious bruising or bleeding disorders.
* Based on medical history and physical examination, the presence of severe neurological diseases (epilepsy, convulsions, or seizures), mental illness, or corresponding family history.
* Long-term use (more than 14 days) of corticosteroids or other immunosuppressive agents (excluding corticosteroid sprays for allergic rhinitis and surface corticosteroid treatment for acute non-complicated dermatitis) or cytotoxic therapy or planning to receive such treatment during the trial.
* History of long-term alcohol abuse or drug abuse.
* Females who are breastfeeding, pregnant, or planning to become pregnant within 90 days, or females with positive pregnancy test results. Note: male participants whose spouse plans to become pregnant within 90 days are also included.
* Received immunoglobulin and/or other blood products in the past 3 months or planning to receive such treatment during the trial.
* Received other investigational drugs or vaccines within the past 30 days or planning to receive such drugs or vaccines during the trial.
* Vaccinated with attenuated live vaccines within the past 14 days or subunit or inactivated vaccines within the past 7 days.
* Suspected or confirmed fever within 72 hours before vaccination or axillary temperature \>37.0℃ on the day of vaccination.
* Clinical laboratory testing shows laboratory abnormalities beyond the reference range and with clinical significance (applicable only to Phase I clinical trials for adults/6-12-year-old children/24-71-month-old children):
A. Complete blood count: white blood cell count, hemoglobin, platelet count.B. Blood biochemistry: alanine aminotransferase (ALT), aspartate aminotransferase (AST), total bilirubin (TBIL), creatinine (CR), fasting blood glucose (Glu).C. Urine routine: urine protein (PRO).
* Any acute illness (with or without fever) or exacerbation of chronic illness within the past 7 days.
* According to the investigator's judgment, there are any other factors that make the participant unsuitable for participation in the clinical trial.
Protocol
{'studyType': 'INTERVENTIONAL', 'phases': ['PHASE1', 'PHASE2'], 'designInfo': {'allocation': 'RANDOMIZED', 'interventionModel': 'PARALLEL', 'primaryPurpose': 'PREVENTION', 'maskingInfo': {'masking': 'QUADRUPLE', 'whoMasked': ['PARTICIPANT', 'CARE_PROVIDER', 'INVESTIGATOR', 'OUTCOMES_ASSESSOR']}}, 'enrollmentInfo': {'count': 744, 'type': 'ESTIMATED'}}
Updated at
2023-10-02
1 organization
4 products
3 indications
Organization
Sinovac BiotechIndication
HandIndication
Foot-and-Mouth DiseaseIndication
Herpangina