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CompletedNCT05386810Updated Apr 15, 2024

Safety of Sabin Inactivated Poliovirus Vaccine in Adults, Children and Infants and Lot Consistency Immunogenicity, and Safety of the msIPV in 2 Months Old Infants

A Phase 3 interventional study of Experimental vaccine and IPV control vaccine in Poliomyelitis, sponsored by Sinovac Biotech Co., Ltd. Completed at 2 sites in China. Open to participants aged 2 Months to 49 Years. Per ClinicalTrials.gov, last updated 2024-04-15.

Sponsored by Sinovac Biotech Co., Ltd · Phase 3, Interventional, and Prevention

From the registry’s dates

  • Registered 1 year 6 months after the study started (first participant enrolled Nov 2020, registered May 2022).
Phase
Phase 3
Study type
Interventional
Enrollment
1,572
Allocation
Randomized
Ages
2 Months to 49 Years
Sex
All
01

Study summary

This study includes two parts.A clinical trial with a open-label to evaluate the safety of Sabin Inactivated Poliovirus Vaccine (Vero cell) (2.5ml-5 doses)(hereinafter referred to as "msIPV")manufactured by Sinovac Biotech Co., Ltd. in adults, children and infants in partⅠ and a blinded,randomized and controlled clinical trial to evaluate the lot consistency immunogenicity, and safety of the msIPV in 2 months old infants in partⅡ.

Read the detailed description

This study includes two stages. A clinical trial with an open-label to evaluate the safety of Sabin Inactivated Poliovirus Vaccine (Vero cell) (2.5ml-5 doses) (hereinafter referred to as "msIPV") in adults, children and infants in stageⅠ and a blinded, randomized and controlled clinical trial to evaluate the lot consistency immunogenicity, and safety of the msIPV in 2 months old infants in stage Ⅱ. A total of 1572 subjects including 24 adults aged 18-49 years,24 children aged 4 years,1524 infants aged 2 months will be enrolled.

StagesⅠ:72 healthy subjects, including 24 adults,24 children and 24 infants will be enrolled. 24 adults and 24 children will receive one dose of vaccine and 24 infants will receive 4 doses of vaccine according to the primary immunization schedule of 0,1,2 months and booster immunization schedule of 18 months.

StagesⅡ:1500 infants aged 2 months will be randomly divided into 5 groups (Experimental Vaccine-lot 1, Experimental Vaccine-lot 2, Experimental Vaccine-lot 3,IPV control group and single-dose sIPV control group) according to the ratio of 1:1:1:1:1. Subjects in 3 experimental groups will receive 5-dose sIPV produced by Sinovac for three lots, subjects in IPV control group will receive IPV produced by Pasteur, and subjects in single-dose sIPV control group will receive single-dose sIPV produced by Sinovac. All subjects will receive 4 doses of experimental or control vaccine according to the primary immunization schedule of 0,1,2 months, one dose of booster at 18 months of age.

02

Conditions studied

  • Poliomyelitis

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03

In context

Poliomyelitis

274 studies on the registry are indexed under Poliomyelitis; 18 are open to participants now.

This study's enrollment of 1,572 is above the median of 476 across 249 interventional studies indexed under Poliomyelitis.

Browse Poliomyelitis studies →

Lead sponsor

Sinovac Biotech Co., Ltd is the lead sponsor of 93 studies on the registry; 19 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
2 Months to 49 Years
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Inclusion Criteria:

Inclusion criteria for adult subjects :

  • Healthy adults aged 18-49 days;
  • Proven legal identification;
  • The subject can understand and voluntarily sign the form.

Inclusion criteria for children subjects :

  • Healthy children aged 4 years old;
  • Subjects who have completed primary immunization with 3 doses of sIPV vaccine;
  • Proven legal identification and vaccination certificate;
  • The subject and/or guardian can understand and voluntarily sign the informed consent form.

Inclusion criteria for infant subjects:

  • Healthy infants aged 2 months (60\~89 days)
  • Proven legal identification and vaccination certificate;
  • The subject and/or guardian can understand and voluntarily sign the informed consent form.

Exclusion Criteria:

Exclusion criteria for adult subjects:

  • Women aged 18 to 49 years, positive urine pregnancy test, pregnant women, breastfeeding women, or planning to become pregnant within 3 months;
  • Previous history of vaccination of sIPV vaccine;
  • Allergy history, history of asthma, including allergy history to vaccine or vaccine components, serious adverse reactions to the vaccine, such as urticaria, dyspnea, angioneurotic edema or stomachache, etc;
  • Congenital malformation or developmental disorder, genetic defect, serious malnutrition, etc.;
  • disease or immunodeficiency/;
  • Thyroid disease or thyroidectomy history, absence of spleen, functional absence of spleen, and any conditions resulting in absence of spleen or splenectomy;
  • Serious chronic diseases, serious cardiovascular diseases, hypertension that cannot be controlled by drugs (systolic blood pressure > 140mmHg, diastolic blood pressure > 90mmHg), diabetes, liver and kidney diseases, malignant tumors, etc;
  • Severe neurological disease (epilepsy, convulsions or convulsions) or mental illness;
  • Medical diagnosis of coagulation abnormalities (such as coagulation factor deficiency, coagulation disorders, abnormalities) or marked bruising or coagulation disorders;
  • Immunosuppressive therapy, cytotoxic therapy, inhaled (excluding allergic rhinitis corticosteroid spray therapy, acute noncomplicated dermatitis superficial corticosteroid therapy) in the past 6 months;
  • History of alcohol or drug abuse;
  • Receipt of blood products within in the past 3 months;
  • Receipt of other drugs in the past 30 days;
  • Receipt of attenuated in the past 14 days;
  • Receipt of inactivated or subunit vaccines in the past 7 days;
  • Acute diseases or acute exacerbation of chronic diseases in the past 7 days;
  • Axillary temperature >37.0°C;
  • According to the investigator's judgment, the subject has any other factors that are not suitable for participating in the clinical trial.

Exclusion criteria for children subjects:

  • Have received 4 doses of sIPV vaccine;
  • History of polio;
  • Allergy history, history of asthma, including allergy history to vaccine or vaccine components, serious adverse reactions to the vaccine, such as urticaria, dyspnea, angioneurotic edema or stomachache, etc;
  • Congenital malformation or developmental disorder, genetic defect, serious malnutrition, etc.;
  • Autoimmune disease or immunodeficiency/immunosuppression;
  • Thyroid disease or thyroidectomy history, absence of spleen, functional absence of spleen, and any conditions resulting in absence of spleen or splenectomy;
  • Suffering from serious cardiovascular diseases, diabetes, liver and kidney diseases, malignant tumors, etc;
  • Severe neurological disease (epilepsy, convulsions or convulsions) or mental illness;
  • Medical diagnosis of coagulation abnormalities (such as coagulation factor deficiency, coagulation disorders, platelet abnormalities) or marked bruising or coagulation disorders;
  • Immunosuppressive therapy, cytotoxic therapy, inhaled corticosteroids(excluding allergic rhinitis corticosteroid spray therapy, acute noncomplicated dermatitis superficial corticosteroid therapy) in the past 6 months;
  • History of alcohol or drug abuse;
  • 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;
  • Acute diseases or acute exacerbation of chronic diseases in the past 7 days;
  • Axillary temperature >37.0°C;
  • According to the investigator's judgment, the subject has any other factors that are not suitable for participating in the clinical trial.

Exclusion criteria for infant subjects:

  • Previous history of vaccination of sIPV vaccine;
  • History of polio;
  • Allergy history, history of asthma, including allergy history to vaccine or vaccine components, serious adverse reactions to the vaccine, such as urticaria, dyspnea, angioneurotic edema or stomachache, etc;
  • Preterm birth babies (delivered before 37 weeks gestation), low birth weight (girls with birth weight \<2300g, boy with birth weight\<2500 g);
  • History of dystocia, asphyxia and nervous system damage at birth;

    • Congenital malformation or developmental disorder, genetic defect, serious malnutrition, etc.;
  • Autoimmune disease or immunodeficiency/immunosuppression;
  • Thyroid disease or thyroidectomy history, absence of spleen, functional absence of spleen, and any conditions resulting in absence of spleen or splenectomy;
  • -Suffering from serious cardiovascular diseases, diabetes, liver and kidney diseases, malignant tumors, etc;
  • Severe neurological disease (epilepsy, convulsions or convulsions) or mental illness;
  • Medical diagnosis of coagulation abnormalities (such as coagulation factor deficiency, coagulation disorders, platelet abnormalities) or marked bruising or coagulation disorders;
  • Have received immunosuppressive therapy, cytotoxic therapy, inhaled corticosteroids(excluding allergic rhinitis corticosteroid spray therapy, acute noncomplicated dermatitis superficial corticosteroid therapy);
  • Receipt of blood products ;

    • 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;
  • Acute diseases or acute exacerbation of chronic diseases in the past 7 days;
  • Axillary temperature >37.0°C;
  • According to the investigator's judgment, the subject has any other factors that are not suitable for participating in the clinical trial.
Terms in these criteria, in plain language(7)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Live vaccines

Vaccines made with a weakened form of the germ, such as measles–mumps–rubella (MMR), chickenpox and yellow fever. They can be risky when the immune system is weakened. Flu injections are not live; the nasal flu spray is.

05

Study design

Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
1,572 participants (actual)

Study arms

  • Experimental
    Safety group in adults

    24 adults will receive one dose of 5-person sIPV vaccine to evaluate the safety of msIPV vaccine.

    Biological: Experimental vaccine

  • Experimental
    Safety group in children

    24 children will receive one dose of 5-person sIPV vaccine to evaluate the safety of msIPV vaccine.

    Biological: Experimental vaccine

  • Experimental
    Safety group in infants

    24 infants will receive 4 doses of vaccine according to the primary immunization schedule of 0,1,2 months and booster immunization schedule of 18 months to evaluate the safety of msIPV vaccine .

    Biological: Experimental vaccine

  • Experimental
    Experimental Vaccine-lot 1

    300 infants will receive 4 doses of 5-person sIPV vaccine of commercial scale lot 1 according to the primary immunization schedule of 0,1,2 months and booster immunization schedule of 18 months.

    Biological: Experimental vaccine

  • Experimental
    Experimental Vaccine-lot 2

    300 infants will receive 4 doses of 5-person sIPV vaccine of commercial scale lot 2 according to the primary immunization schedule of 0,1,2 months and booster immunization schedule of 18 months.

    Biological: Experimental vaccine

  • Experimental
    Experimental Vaccine-lot 3

    300 infants will receive 4 doses of 5-person sIPV vaccine of commercial scale lot 3 according to the primary immunization schedule of 0,1,2 months and booster immunization schedule of 18 months.

    Biological: Experimental vaccine

  • Active comparator
    IPV control group

    300 infants will receive 4 doses of IPV vaccine produced by Pasteur according to the primary immunization schedule of 0,1,2 months and booster immunization schedule of 18 months.

    Biological: IPV control vaccine

  • Active comparator
    single-person sIPV control group

    300 infants will receive 4 doses of single-dose sIPV vaccine produced by Pasteur according to the primary immunization schedule of 0,1,2 months and booster immunization schedule of 18 months.

    Biological: single-person sIPV control vaccine

Interventions

  • BiologicalExperimental vaccine

    Sabin Inactivated Poliovirus Vaccine (Vero cell) (2.5ml)-investigational vaccine produced by Sinovac Biotech Co., Ltd. Inactivated Sabin poliovirus antigen (per 0.5ml): type 1 (15DU), type 2 (45DU), and type 3 (45DU)in 2.5 ml mixture of medium 199,glycine,formaldehyde,sodium chloride,potassium chloride,calcium chloride,magnesium sulfate,disodium phosphate,sodium dihydrogen phosphate,2 - phenoxyethanol for per injection.

    Also known as: msIPV

  • BiologicalIPV control vaccine

    Inactivated Poliovirus Vaccine - control vaccine produced by Sanofi. Inactivated poliovirus antigens: Mahoney strain for type 1 (40DU), MEF-1 strain for type 2 (8DU), Saukett strains for type 3 (32DU) in 0.5 ml mixture of 2- phenoxyethanol,ethanol,formaldehyde,hanks199 medium (containing amino acids, mineral salts, vitamins, glucose, polysorbate 80 and water for injection),hydrochloric acid or sodium hydroxide (for pH value adjustment),trace amounts of antibiotics (neomycin, streptomycin and polymyxin B)for per injection.

  • Biologicalsingle-person sIPV control vaccine

    Sabin Inactivated Poliovirus Vaccine (Vero cell) (0.5ml) -control vaccine produced by Sinovac Biotech Co., Ltd. Inactivated Sabin poliovirus antigen: type 1 (15DU), type 2 (45DU), and type 3 (45DU)in 0.5 ml mixture of medium 199,glycine,formaldehyde,sodium chloride,potassium chloride,calcium chloride,magnesium sulfate,disodium phosphate,sodium dihydrogen phosphate for per injection.

06

What researchers measure

Primary outcomes

  1. Safety index-incidence of adverse reactions

    Incidence of adverse reactions within 30 days after each dose

    Time frame: Within 30 days after each dose

  2. Immunogenicity index-Geometric mean titers (GMT)

    GMT 30 days after primary immunization in msIPV vaccination group

    Time frame: 30 days after primary immunization

  3. Immunogenicity index- seroconversion rate of neutralizing antibody

    Seroconversion rate of neutralizing antibody 30 days after primary immunization in combined experiment group and IPV control group

    Time frame: 30 days after primary immunization

Secondary outcomes

  1. Safety index-incidence of adverse reactions

    Incidence of adverse reactions within 7 days after each dose

    Time frame: Within 7 days after each dose

  2. Safety index-the incidence of adverse reactions

    Incidence of SAE during the period of safety monitoring

    Time frame: During the period of safety monitoring

  3. Immunogenicity index- Neutralizing antibody positive rate and GMI

    Neutralizing antibody positive rate and GMI and percentage of subjects with antibody ≥1:64 30 days after primary immunization

    Time frame: 30 days after primary immunization

  4. Immunogenicity index- Neutralizing antibody positive rate

    Neutralizing antibody positive rate, percentage of subjects with antibody ≥1:64 and GMT before booster dose

    Time frame: Before booster dose

  5. Immunogenicity index-Neutralizing antibody positive rate,GMT and GMI

    Neutralizing antibody positive rate, percentage of subjects with antibody ≥1:64, GMT and GMI 30 days after booster dose

    Time frame: 30 days after booster dose

07

Study locations

2 sites
  • Xiangfu District Center for Disease Prevention and Control
    Kaifeng, Henan 475100, China
  • Xiangcheng County Center for Disease Control and Prevention
    Xuchang, Henan 461700, China
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 15, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT05386810
Responsible party
Sponsor
First posted
May 23, 2022
Start date
Nov 5, 2020
Primary completion
Oct 8, 2022
Completion
Jul 20, 2023
Last update
Apr 15, 2024

Study contacts

Yanxia Wang, Master
principal investigator · Henan Provincial Center for Disease Prevention and Control

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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