Safety and Immunogenicity of a Sabin Inactivated Poliovirus Vaccine

A Phase I Study to Evaluate the Safety and Immunogenicity of a Sabin Inactivated Poliovirus Vaccine (Vero Cell)

The purpose of this phase I study is to evaluate the safety of a Sabin Inactivated Poliovirus Vaccine (sIPV) in adults and children, and the safety and immunogenicity of it in infants. 20 adults aged 18~45 years and 20 children aged 4 years were only administered one dose of sIPV with medium D antigen content. 60 infants aged 2 months (60~90 days) were randomized to receive three doses of sIPV with medium D antigen content, conventional IPV (cIPV, manufactured by Sanofi Pasteur) or sIPV (manufactured by the Institute of Medical Biology, the Chinese Academy of Medical Biology), respectively, on the month 0, 1, 2 schedule. Serum samples were collected before the 1st dose and 30 days after the 3rd dose vaccination to assess the immunogenicity in infants. Adverse events occurring within 30 days after each dose were collected to assess the safety.

Study Overview

• Status: Completed
• Conditions: Polio
• Intervention / Treatment: Biological: sIPV; Biological: Commercialized sIPV; Biological: Commercialized IPV

Detailed Description

The purpose of this phase I study is to evaluate the safety of a Sabin Inactivated Poliovirus Vaccine (sIPV) in adults and children, and the safety and immunogenicity of it in infants. 20 adults aged 18~45 years and 20 children aged 4 years were only administered one dose of sIPV with medium D antigen content. 60 infants aged 2 months (60~90 days) were randomized to receive three doses of sIPV with medium D antigen content, conventional IPV (cIPV, manufactured by Sanofi Pasteur) or sIPV (manufactured by the Institute of Medical Biology, the Chinese Academy of Medical Biology), respectively, on the month 0, 1, 2 schedule. Serum samples were collected before the 1st dose and 30 days after the 3rd dose vaccination to assess the immunogenicity in infants. Adverse events occurring within 30 days after each dose were collected to assess the safety.

The antigen contents of type I, type II and type III polioviruses in the investigational and control vaccines were as follows: medium-dose Sabin IPV (15 DU, 45 DU and 45 DU), control Sabin IPV (30 DU, 32 DU and 45 DU), control Salk IPV (40 DU, 8 DU and 32 DU). All vaccines were in liquid form, 0.5 ml per dose.

• Study Type: Interventional
• Enrollment (Actual): 100
• Phase: Phase 1

Contacts and Locations

Study Locations

• China
  • Nanjing, China
    • Jiangsu Provincial Center for Diseases Control and Prevention

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 1 month to 45 years (ADULT, CHILD)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Healthy volunteer aged 18~45 years with/without prior vaccination of poliovirus and without any contraindication for vaccination;
• Healthy volunteer aged 4 years with/without prior vaccination of poliovirus but without booster vaccination and any contraindication for vaccination;
• Healthy volunteer aged 2 months (60~90 days) without prior vaccination of poliovirus and any contraindication for vaccination;
• Guardians of the participants should be capable of understanding the written consent form, and such form should be signed prior to enrolment;
• Complying with the requirement of the study protocol;
• Axillary temperature ≤ 37.0 °C;

Exclusion Criteria:

• Women aged 18~45 years with positive urine pregnancy test, pregnant or lactating women, or women with pregnancy plans within 3 months;
• Preterm or low birth weight infants;
• Congenital malformation, developmental disorders, genetic defects, or severe malnutrition;
• History of polio;
• Severe nervous system disease (epilepsy, seizures or convulsions) or mental illness;
• History of allergy to any vaccine, or any ingredient of the vaccine, or serious adverse reaction(s) to vaccination, such as urticaria, dyspnea, angioneurotic edema, abdominal pain, etc;
• Autoimmune disease or immunodeficiency/immunosuppressive;
• Bleeding disorder diagnosed by a doctor (e.g., coagulation factor deficiency, coagulation disorder, or platelet disorder), or significant bruising or coagulopathy;
• Serious chronic diseases, respiratory diseases, cardiovascular diseases, liver or kidney diseases or skin diseases;
• Mother of the participant has HIV infection;
• Acute illness or acute exacerbation of chronic disease within the past 7 days;
• Had a high fever within the past 3 days (axillary temperature ≥ 38.0°C);
• Receipt of any subunit or inactivated vaccine within the past 7 day;
• Receipt of any live attenuated vaccine within the past 14 days;
• Receipt of any blood product within the past 3 months;
• Any other factor that, in the judgment of the investigator, suggesting the volunteer is unsuitable for this study;

Study Plan

How is the study designed?

Design Details

• Primary Purpose: PREVENTION
• Allocation: RANDOMIZED
• Interventional Model: PARALLEL
• Masking: SINGLE

Number of Arms

5

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
EXPERIMENTAL: Experimental Adult Group - Medium dosage; One intramuscular injection of the investigational vaccine (0.5 ml); Intervention: one-dose regimen of medium dosage investigational sIPV Intervention: Biological: one-dose regimen of medium dosage investigational sIPV	Biological: sIPV; The Medium dosage sIPV was developed by Minhai Biotech Co., LTD. The antigen contents of type I, type II and type III polioviruses in the medium dosage sIPV were 15 DU, 45 DU and 45 DU. The vaccine was in liquid form, 0.5 ml per dose.
EXPERIMENTAL: Experimental Children Group - Medium dosage; One intramuscular injection of the investigational vaccine (0.5 ml); Intervention: one-dose regimen of medium dosage investigational sIPV Intervention: Biological: one-dose regimen of medium dosage investigational sIPV	Biological: sIPV; The Medium dosage sIPV was developed by Minhai Biotech Co., LTD. The antigen contents of type I, type II and type III polioviruses in the medium dosage sIPV were 15 DU, 45 DU and 45 DU. The vaccine was in liquid form, 0.5 ml per dose.
EXPERIMENTAL: Experimental Infant Group - Medium dosage; Three intramuscular injections of the investigational vaccine (0.5 ml) on Day 0, Day 30 and Day 60 respectively; Intervention: Three-dose regimen of medium dosage investigational sIPV Intervention: Biological: Three-dose regimen of medium dosage investigational sIPV	Biological: sIPV; The Medium dosage sIPV was developed by Minhai Biotech Co., LTD. The antigen contents of type I, type II and type III polioviruses in the medium dosage sIPV were 15 DU, 45 DU and 45 DU. The vaccine was in liquid form, 0.5 ml per dose.
ACTIVE_COMPARATOR: Control Infant Group - commercialized sIPV; Three intramuscular injections of the investigational vaccine (0.5 ml) on Day 0, Day 30 and Day 60 respectively; Intervention: Three-dose regimen of commercialized sIPV Intervention: Biological: Three-dose regimen of commercialized sIPV	Biological: Commercialized sIPV; The commercialized sIPV was manufactured by Institute of Medical Biology Chinese Academy of Medical Sciences.The antigen contents of type I, type II and type III polioviruses in the commercialized sIPV were 30 DU, 32 DU and 45 DU. The vaccine was in liquid form, 0.5 ml per dose.
ACTIVE_COMPARATOR: Control Infant Group - commercialized IPV; Three intramuscular injections of the investigational vaccine (0.5 ml) on Day 0, Day 30 and Day 60 respectively; Intervention: Three-dose regimen of commercialized IPV Intervention: Biological: Three-dose regimen of commercialized IPV	Biological: Commercialized IPV; The commercialized Salk IPV was manufactured by Sanofi Pasteur S.A.The antigen contents of type I, type II and type III polioviruses in the commercialized IPV were 40 DU, 8 DU and 32 DU. The vaccine was in liquid form, 0.5 ml per dose.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
The seroconversion rates (SCRs) of each group 30 days after three-dose regimen	Subjects whose pre-immune antibody level < 1:8 and post-immune antibody level ≥ 1:8, or those whose pre-immune antibody level ≥ 1:8 and the increase of post-immune antibody level ≥ 4 folds are considered seroconverted.	28~42 days

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
The geometric mean titer (GMT) of each group 30 days after three-dose regimen	GMT of each group 28~42 days after three-dose regimen.	28~42 days
The geometric mean fold increase (GMI) of each group 30 days after three-dose regimen		28~42 days
The number of participants who have adverse reactions divided by the total number of participants		30 days
The number of participants who have adverse events (AEs) divided by the total number of participants.	occurred within 30 days after each injection	30 day

Collaborators and Investigators

• Sponsor: Jiangsu Province Centers for Disease Control and Prevention
• Collaborators: Beijing Minhai Biotechnology Co., Ltd

Publications and helpful links

General Publications

• Jia S, Tang R, Li G, Hu Y, Liang Q. The effect of maternal poliovirus antibodies on the immune responses of infants to poliovirus vaccines. BMC Infect Dis. 2020 Aug 31;20(1):641. doi: 10.1186/s12879-020-05348-1.

Study record dates

Study Major Dates

• Study Start (ACTUAL): August 21, 2017
• Primary Completion (ACTUAL): December 19, 2017
• Study Completion (ACTUAL): December 28, 2018

Study Registration Dates

• First Submitted: February 9, 2020
• First Submitted That Met QC Criteria: February 10, 2020
• First Posted (ACTUAL): February 11, 2020

Study Record Updates

• Last Update Posted (ACTUAL): February 11, 2020
• Last Update Submitted That Met QC Criteria: February 10, 2020
• Last Verified: February 1, 2020

More Information

Terms related to this study

• Other Study ID Numbers: 2017L00935

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No