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PoliomyelitisIPVNCT02643446

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

An observational study of Poliomyelitis, run by Centers for Disease Control and Prevention, China at 5 sites in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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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. Read more about this study

Who is it for?
Ages 2 to 6 monthsHealthy volunteers can take part
Conditions the study is for
Poliomyelitis
What is being tested?
IPV and OPV
Type of treatment
Vaccines
How many people
809 participants
Where
5 sitesChina
Study dates
Aug 2015to Jul 2017
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 2 to 6 months
  • All sexes
  • Healthy volunteers accepted
  • Child

Study population: The participants will be seclected from the vaccination clinics. The study will be in five provinces, which conduct the pilot project of IPV phased introduction into national immunization program. In each province, 1-2 counties will be selected, and then selected several vaccination clinics.

Who may be able to join

  • 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.

Who cannot join

  • 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.

Trial locations and contacts

5 sites in 1 country.

5 sites in 1 country

China5 sites
  • Jilin Center for Disease Control and Prevention

    Changchun, Jilin

  • Guangdong Center for Disease Control and Prevention

    Guangzhou, Guangdong

  • Tianjin Center for Disease Control and Prevention

    Tianjin, Tianjin Municipality

  • Hubei Center for Disease Control and Prevention

    Wuhan, Hubei

  • Ningxia Center for Disease Control and Prevention

    Yinchuan, Ningxia

Other trials in China

About this study

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

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.

Read the detailed 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.
Conditions
Poliomyelitis
Being tested
IPV, OPV
Keywords
Poliovirus Vaccine, Inactivated, Poliovirus Vaccine, Oral, Immunity, Seroconversion
Medical subject headings
Poliomyelitis, HIV Seropositivity

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • IPVBiological

    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

  • OPVBiological

    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.

Study groups in NCT02643446
Study groupRoleWhat they receive
G1: IPV+OPV, 1 m followupUsing 1 dose IPV and 2 doses of OPV at 2, 3 and 4 months of age; Collecting two blood samples: one sample just before the first dose of IPV, another sample at 3 months of age, that is one month after the first dose of IPV and just before the first dose of OPV.
Receives: Biological: IPV; Biological: OPV
G2: IPV+OPV, 1 m+7d followupUsing 1 dose IPV and 2 doses of OPV at 2, 3 and 4 months of age; Collecting two blood samples: one sample just before the first dose of IPV, another sample at 3 months and 7 days of age, that is 7 days after the first dose of OPV.
Receives: Biological: IPV; Biological: OPV
G3: IPV+OPV, 2 m followupUsing 1 dose IPV and 2 doses of OPV at 2, 3 and 4 months of age; Collecting two blood samples: one sample just before the first dose of IPV, another sample at 4 months of age, that is one month after the first dose of OPV and just before the second dose of OPV.
Receives: Biological: IPV; Biological: OPV
G4: IPV+OPV, 3 m followupUsing 1 dose IPV and 2 doses of OPV at 2, 3 and 4 months of age; Collecting two blood samples: one sample just before the first dose of IPV, another sample at 5 months of age, that is one month after the second dose of OPV.
Receives: Biological: IPV; Biological: OPV
G5: OPV, 3 m followupUsing 3 doses of OPV at 2, 3 and 4 months of age; Collecting two blood samples: one sample just before the first dose of OPV, another sample at 5 months of age, that is one month after the third dose of OPV.
Receives: Biological: OPV
G6: OPV, 1 m followupUsing 3 doses of OPV at 2, 3 and 4 months of age; Collecting two blood samples: one sample just before the first dose of OPV, another sample at 3 months of age, that is one month after the first dose of OPV and just before the second dose of OPV.
Receives: Biological: OPV
G7: OPV, 1 m+7d followupUsing 3 doses of OPV at 2, 3 and 4 months of age; Collecting two blood samples: one sample just before the first dose of OPV, another sample at 3 months and 7 days of age, that is 7 days after the second dose of OPV.
Receives: Biological: OPV
G8: IPV+IPV, 1 m+7d followupUsing 2 dose IPV and 1 doses of OPV at 2, 3 and 4 months of age; Collecting two blood samples: one sample just before the first dose of IPV, another sample at 3 months and 7 days of age, that is 7 days after the second dose of IPV.
Receives: Biological: IPV
G9: IPV+IPV, 2 m followupUsing 2 doses of IPV and 1 doses of OPV at 2, 3,4 months of age; Collecting two blood samples: one sample just before the first dose of IPV, another sample at 4 months of age, that is one month after the second dose of IPV and just before the first dose of OPV.
Receives: Biological: IPV
G10: IPV+OPV, 1 m and 3 m followupUsing 1 dose IPV and 2 doses of OPV at 2, 3 and 4 months of age; Collecting three blood samples: one sample just before the first dose of IPV, another sample at 3 months of age, that is one month after the first dose of IPV and just before the first dose of OPV;the third sample at 5 months of age, that is one month after the second dose of OPV.
Receives: Biological: IPV; Biological: OPV
G11: IPV+OPV, 1 m+7d and 2 m followupUsing 1 dose IPV and 2 doses of OPV at 2, 3 and 4 months of age; Collecting three blood samples: one sample just before the first dose of IPV, another sample at 3 months and 7 days of age, that is 7 days after the first dose of OPV,the third sample at 4 months of age, that is one month after the first dose of OPV.
Receives: Biological: IPV; Biological: OPV
G12: IPV+IPV,1 m+7d and 2 m followupUsing 2 dose IPV and 1 doses of OPV at 2, 3 and 4 months of age; Collecting three blood samples: one sample just before the first dose of IPV, another sample at 3 months and 7 days of age, that is 7 days after the second dose of IPV,the third sample at 4 months of age, that is one month after the second dose of IPV.
Receives: Biological: IPV

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Seroconversion rate

    Calculate the percentage of subjects with seroconversion after each dose of IPV or OPV vaccination

    Measured: One month after the specific dose of IPV or OPV

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted31 Dec 2015 (estimated)
  2. Study startAug 2015
  3. Primary completionMar 2017
  4. Study completionJul 2017

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
809 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02643446
Sponsor's protocol ID
201526
Acronym
IPV
Status last verified
Jul 2017
First submitted
23 Dec 2015
Last updated
1 Aug 2017
Results posted
No
Data monitoring committee
No

Publications

  • 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(Suppl 1):S439-46. doi: 10.1093/infdis/jit601. Epub 2014 Mar 14.

    PubMed 24634499
  • Resik S, Tejeda A, Sutter RW, Diaz M, Sarmiento L, Alemani 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.

    PubMed 23363495

Questions about this trial

What is this clinical trial studying?

An observational study of Poliomyelitis, run by Centers for Disease Control and Prevention, China at 5 sites in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 1 Aug 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 5 sites in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Seroconversion rate (time frame: One month after the specific dose of IPV or OPV). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02643446, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Aug 2017.

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