A Phase III Clinical Trial of Quadrivalent Influenza Vaccine in Healthy Subjects Aged 6 to 35 Months
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ClinicalTrials.gov Identifier: NCT06049927 |
Recruitment Status :
Recruiting
First Posted : September 22, 2023
Last Update Posted : October 2, 2023
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Condition or disease | Intervention/treatment | Phase |
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Seasonal Influenza | Biological: Quadrivalent influenza vaccine(0.25ml) Biological: Quadrivalent influenza vaccine(0.5ml) Biological: Trivalent influenza vaccine(BV) Biological: Trivalent influenza vaccine(BY) | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 3300 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Prevention |
Official Title: | An Randomized, Double-blind, Controlled Phase III Clinical Trial to Evaluate the Safety and Immunogenicity of Quadrivalent Influenza Vaccine in Healthy Subjects Aged 6 to 35months |
Actual Study Start Date : | September 16, 2023 |
Estimated Primary Completion Date : | December 31, 2023 |
Estimated Study Completion Date : | May 31, 2024 |
Arm | Intervention/treatment |
---|---|
Experimental: Experimental Group of quadrivalent influenza vaccine(0.25ml)
1100 subjects phase III will receive two doses of quadrivalent influenza vaccine(0.25ml) according to the immunization schedule of day 0,28
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Biological: Quadrivalent influenza vaccine(0.25ml)
7.5 ug hemagglutinin (HA) of each of the four influenza strains in 0.25 mL of sodium chloride, disodium hydrogen phosphate, sodium dihydrogen phosphate per njection.The routine of administration is Intramuscular injection into deltoid region.And the immunization schedule is two doses on day 0, 28. |
Experimental: Experimental Group of quadrivalent influenza vaccine(0.5ml)
1100 subjects phase III will receive two doses of quadrivalent influenza vaccine(0.5ml) according to the immunization schedule of day 0,28
|
Biological: Quadrivalent influenza vaccine(0.5ml)
15 ug hemagglutinin (HA) of each of the four influenza strains in 0.5 mL of sodium chloride, disodium hydrogen phosphate, sodium dihydrogen phosphate per njection.The routine of administration is Intramuscular injection into deltoid region.And the immunization schedule is two doses on day 0, 28. |
Active Comparator: Control Group of trivalent influenza vaccine(BV)
550 subjects phase III will receive two doses of trivalent influenza vaccine(BV) according to the immunization schedule of day 0,28.
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Biological: Trivalent influenza vaccine(BV)
7.5μg inactivated influenza antigen (H1N1, H3N2, Victoria) of each of the trivalent influenza vaccine in 0.25 mL of sodium chloride, disodium hydrogen phosphate, sodium dihydrogen phosphate per injection.The routine of administration is Intramuscular injection into deltoid region. And the immunization schedule is two doses on day 0, 28. |
Active Comparator: Control Group of trivalent influenza vaccine(BY)
550 subjects phase III will receive two doses of trivalent influenza vaccine(BY) according to the immunization schedule of day 0,28.
|
Biological: Trivalent influenza vaccine(BY)
7.5μg inactivated influenza antigen (H1N1, H3N2, and Yamagata) of each of the trivalent influenza vaccine in 0.25 mL of sodium chloride, disodium hydrogen phosphate, sodium dihydrogen phosphate per injection.The routine of administration is Intramuscular injection into deltoid region.And the immunization schedule is two doses vaccine on day 0, 28. |
- Seroconversion rates of HI antibody [ Time Frame: 28 days after full schedule immunization ]Anti-influenza antibodies were measured using HAI assay for 4 strains: H1N1, H3N2, B Victoria and B Yamagata. Seroconversion was defined as pre-vaccination titer <1:10 and post-vaccination titer ≥1:40, and Significant increase was defined as pre-vaccination titer≥1:40 and ≥ 4-fold increase of post-vaccination titer.
- Geometric Mean Titers (GMTs) of HI antibody [ Time Frame: 28 days after full schedule immunization ]Anti-influenza antibody levels were measured using hemagglutination inhibition (HAI) assay for 4 strains: H1N1, H3N2, B Victoria, B Yamagata.
- Number of Participants With Seroprotection to Influenza Vaccine Antigens [ Time Frame: 28 days after full schedule immunization ]Anti-influenza antibodies were measured using HAI assay for 4 strains: H1N1, H3N2, B Victoria and B Yamagata. Seroprotection was defined as an antibody titer ≥1:40 at pre-vaccination and at post-final vaccination.
- GMIs of HI antibody [ Time Frame: 28 days after full schedule immunization ]Anti-influenza antibody were measured using hemagglutination inhibition (HAI) assay for 4 strains: H1N1, H3N2, B Victoria, B Yamagata. GMI is the increase fold of GMT post vaccination compared with pre vaccination
- Incidence of adverse reactions [ Time Frame: 0-30 days after each dose ]Incidence of adverse reaction 0-30 days after each dose
- Incidence of adverse reactions [ Time Frame: 0-7 days after each dose ]Incidence of adverse reaction 0-7 days after each dose
- Incidence of Serious adverse events [ Time Frame: Since the beginning of vaccination until 6 months after the last dose ]Incidence of serious adverse events from beginning of vaccination until 6 months after the last dose
- Incidence of AESI [ Time Frame: since the beginning of vaccination until 6 months after the last dose ]Incidence of AESI since the beginning of vaccination until 6 months after the last dose
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Ages Eligible for Study: | 6 Months to 35 Months (Child) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- Healthy infants aged 6-35 months;
- Proven vaccination certificate and birth certificate;
- The subjects' guardians can understand and voluntarily sign the informed consent form.
Exclusion Criteria:
- Received any circulating seasonal influenza vaccine prior to enrollment or had an influenza vaccine schedule during the study;
- Suffering from seasonal influenza in the past 6 moths;
- Axillary temperature >37.0°C;
- History of allergy to the vaccine or vaccine components, or serious adverse reactions to the vaccine, such as urticaria, dyspnea, angioedema and asthma;
- Congenital malformations or developmental disorders, genetic defects, severe malnutrition, etc.;
- Severe chronic diseases(Such as down syndrome, diabetes, sickle cell anaemia or neurological disorders);
- Severe neurological disease (epilepsy, convulsions or convulsions) or mental illness;
- Autoimmune disease (such as systemic lupus erythematosus) or immunodeficiency / immunosuppression (such as HIV, after organ transplantation)
- Thyroid disease or history of thyroidectomy, asplenia,functional asplenia, asplenia or splenectomy resulting from any condition;
- Diagnosed abnormal blood coagulation function (eg, lack of blood coagulation factors, blood coagulopathy, abnormal platelets) or obvious bruising or blood coagulation;
- Continuous use of corticosteroids or other immunosuppressive agents for ≥ 14 days within the past 6 months (excluding allergic rhinitis corticosteroid spray therapy, acute noncomplicated dermatitis superficial corticosteroid therapy) and cytotoxic therapy in the past 6 months;
- Acute diseases or acute exacerbation of chronic diseases in the past 3 days;
- Receipt of blood products within in the past 3 months;
- Receipt of other investigational drugs in the past 30 days;
- Receipt of attenuated live vaccines in the past 14 days;
- Receipt of inactivated or subunit vaccines in the past 7 days;
- Participated in other clinical trials before enrollment and in the follow-up period, or plans to participate in other clinical trials during the clinical trial;
- According to the investigator's judgment, the subject has any other factors that are not suitable for participating in the clinical trial
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT06049927
Contact: Lei Wang | 18986142864 | 372491281@qq.com |
China, Anhui | |
Huoqiu County Center for Disease Control and Prevention | Not yet recruiting |
Lu'an, Anhui, China, 237400 | |
Contact: Tao Wang 18905644963 2544285048@qq.com | |
China, Hubei | |
Zhushan County Center for Diseases Control and Prevention | Recruiting |
Shiyan, Hubei, China, 442200 | |
Contact: Xianhong Zeng 568235719@qq.com | |
Nanzhang County Center for Disease Prevention and Control | Recruiting |
Xiangyang, Hubei, China, 441500 | |
Contact: Chujun Chen 15671486908 894578445@qq.com | |
Laohekou Center for Disease Control and Prevention | Recruiting |
Xiangyang, Hubei, China, 441800 | |
Contact: Anguo Li 15072215220 | |
Contact 568235719@qq.com | |
Digui County Center for Disease Control and Prevention | Recruiting |
Yichang, Hubei, China, 443600 | |
Contact: Mingzhao Li 13469837136 309223049@qq.com |
Principal Investigator: | Lei Wang | Hubei Provincial Center for Disease Prevention and Control | |
Principal Investigator: | Jihai Tang | Anhui Provincial Center for Disease Prevention and Control |
Responsible Party: | Sinovac Biotech Co., Ltd |
ClinicalTrials.gov Identifier: | NCT06049927 |
Other Study ID Numbers: |
PRO-QINF-3005 |
First Posted: | September 22, 2023 Key Record Dates |
Last Update Posted: | October 2, 2023 |
Last Verified: | September 2023 |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Influenza, Human Respiratory Tract Infections Infections Orthomyxoviridae Infections RNA Virus Infections |
Virus Diseases Respiratory Tract Diseases Vaccines Immunologic Factors Physiological Effects of Drugs |