Serological Survey on Monitoring the Positive Rate After Vaccination of Inactivated Polio Vaccine

Poliomyelitis Clinical Trial

— IPV  

Official title:

Serological Survey on Monitoring the Population Immunity and Positive Rate After Vaccination of Inactivated Poliovirus Vaccine

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT02643446
• Other study ID #: 201526
• Status: Completed
• Phase: N/A
• First received: December 23, 2015
• Last updated: July 31, 2017
• Start date: August 2015
• Est. completion date: July 2017

Study information

• Verified date: July 2017
• Source: Centers for Disease Control and Prevention, China
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

The Purpose of this study is to assess the seroconversion using inactivated poliovirus vaccine (IPV) and oral poliovirus vaccine (OPV) sequential schedule in pilot areas where IPV was phased introduced into national immunization program (NIP) in China.

Description:

Objective:

1. To evaluate the seroprotection rates after the 3 doses of primary polio vaccination among age eligible children in pilot areas where the IPV was introduced into NIP;

2. To evaluate the seroprotection rates after different dose(s) of polio vaccine(s) using sequential schedule.

Sample size:752

1. Jilin shall select 120 subjects to collect blood samples for evaluation of immune response,of whom 90 will be given OPV as second vaccine and 30 will be given IPV as second vaccine

2. Hubei shall select 132 subjects to collect blood samples for evaluation of immune response,of whom 102 will be given OPV as second vaccine and 30 will be given IPV as second vaccine

3. Ningxia shall select 260 subjects to collect blood samples for evaluation of immune response. The subject will be divided into 5 groups.

4. In Guangdong province,120 children will be selected as subjects , of whom 80 children will be given OPV as first vaccine and 40 children will be given IPV as first vaccine.

5. Tianjin shall select 120 subjects to collect blood samples for evaluation of immune response, of whom 80 will be given OPV as second vaccine and 30 will be given IPV as second vaccine

Organization Chart of the Study:

• Chinese Centers for Disease Control and Prevention (China CDC) lead the overall study, and be responsible for the study design, supervise the five selected provinces, conduct field monitor, data analysis and result distribution and explanation.

• The five pilot Provincial CDCs conduct the supervision and monitoring of 1-2 counties CDCs in each of pilot province.

• The County CDCs organize several vaccination clinics to recruit the subjects who meet the Inclusion criteria.

Quality Assurance Plan:

• China CDC and provincial CDC will monitor and supervise the field work, ensure the quality of the study.

• County CDCs organize vaccination clinics to service the subjects receiving timely polio vaccines in accordance with the immunization schedule, and that the blood samples are collected in accordance with the required timeline in difference groups.

• Clinic doctors will communicate and explain the purpose and procedure of the survey to parents, and the signed informed consent from by parents will be obtained before the children participate the study.

• The target drop-out rate of subjects without the second blood samples in each province should be less than 10%.

• The samples will be tested for polio antibody in a qualified laboratory, which should be a World Health Organization certified polio network laboratory in China.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 809
• Est. completion date: July 2017
• Est. primary completion date: March 2017
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 2 Months to 6 Months

Eligibility

Inclusion Criteria:

• Healthy children who are regular residents in the pilot counties where the immune response is evaluated in pilot provinces.

• Receiving the polio vaccination at 2, 3 and 4 months old with an interval of 28-35 days between doses according to national immunization schedule. The first dose of vaccine was administered at 2 full months old and less than 3 full months old.

• No rotavirus vaccine was administered during the period of primary polio vaccinations, and no vaccines of category 2 (private market) were administered simultaneously with polio vaccine. If vaccines of category 2 other than rotavirus vaccine were administered, they should be administered with a space of at least 2 weeks with polio vaccination.

Exclusion Criteria:

• The first dose of polio vaccine was administered at more than 3 months old regardless of the reasons.

• Children didn't get proper type and doses of vaccine as the protocal required.

• Children with known immunodeficiency conditions.

• Immunosuppressive agents or blood products were used after birth.

• Vaccine contraindications.

Related Conditions & MeSH terms

• Poliomyelitis

Intervention

Biological:
• IPV
IPV will be vaccinated at 2 months of age act as the first dose of poliovirus vaccine in the study group1 to group 4,group8 to group 11. IPV will be given at 3 month of age act as second vaccine in group 8,9,12
• OPV
OPV will be vaccinated at 3 and 4 months of age, act as the second and third dose of poliovirus vaccine in the study group 1 to group 4,group 10 to group 11. OPV will be vaccinated at 2, 3 and 4 months of age act as the full three primary immunization doses of polio virus vaccine in the study group 5 to group 7.

Locations

Country	Name	City	State
China	Jilin Center for Disease Control and Prevention	Changchun	Jilin
China	Guangdong Center for Disease Control and Prevention	Guangzhou	Guangdong
China	Tianjin Center for Disease Control and Prevention	Tianjin	Tianjin
China	Hubei Center for Disease Control and Prevention	Wuhan	Hubei
China	Ningxia Center for Disease Control and Prevention	Yinchuan	Ningxia

Sponsors (7)

Lead Sponsor	Collaborator
Centers for Disease Control and Prevention, China	Guangdong Center for Disease Prevention and Control, Hubei Provincial Center for Disease Control and Prevention, Jilin Center for Disease Control and Prevention, Ningxia Center for Disease Control and Prevention, Tianjin Center for Disease Control and Prevention, World Health Organization

Country where clinical trial is conducted

China, 

References & Publications (2)

Grassly NC. Immunogenicity and effectiveness of routine immunization with 1 or 2 doses of inactivated poliovirus vaccine: systematic review and meta-analysis. J Infect Dis. 2014 Nov 1;210 Suppl 1:S439-46. doi: 10.1093/infdis/jit601. Epub 2014 Mar 14. Review. — View Citation

Resik S, Tejeda A, Sutter RW, Diaz M, Sarmiento L, Alemañi N, Garcia G, Fonseca M, Hung LH, Kahn AL, Burton A, Landaverde JM, Aylward RB. Priming after a fractional dose of inactivated poliovirus vaccine. N Engl J Med. 2013 Jan 31;368(5):416-24. doi: 10.1056/NEJMoa1202541. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Seroconversion rate	Calculate the percentage of subjects with seroconversion after each dose of IPV or OPV vaccination	One month after the specific dose of IPV or OPV