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CompletedNCT02775942Updated Jun 29, 2017

Safety and Immunogenicity of IPOVAC in Young Children

A Phase 2 interventional study of IMOVAC-POLIO and IPOVAC 1.5:5:5 in Poliomyelitis, sponsored by National Institute of Hygiene and Epidemiology, Vietnam. Completed at 2 sites in Vietnam. Open to participants aged 2 Months and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-06-29.

Sponsored by National Institute of Hygiene and Epidemiology, Vietnam · Phase 2, Interventional, and Prevention

Phase
Phase 2
Study type
Interventional
Enrollment
240
Allocation
Randomized
Ages
2 Months and older
Sex
All
01

Study summary

A dose escalating study with 3 different dosing regimens of the studied vaccine (IPOVAC- POLYVAC-Vietnam) and a licensed vaccine (IMOVAC-Sanofi Pasteur- France) is conducted in Vietnamese children, aged 2 months and above to assess the safety and immunogenicity. Two hundred and forty children are enrolled and placed randomly into 4 groups (60 children/group), each of which receive 3 doses of vaccine subcutaneously, at 4 week interval. Safety issues included immediate reaction at the site of injection and systemic reaction within 30 min of administration, within 7 days after each dose, unexpected event occur within 30 days of each dose, SAE (from start of dose 1 to 30 days after dose 3), blood cell count, urea, ALT,AST. Immunogenicity outcomes include seroconversion of neutralising antibodies for each of vaccine serotypes.

Read the detailed description

The use of oral poliomyelitis vaccine (OPV) in Vietnam expanded immunisation program has resulted in successful eradication of polio in Vietnam. However due to the concern of OPV-related poliomyelitis cases occurred worldwide, WHO has recommended the countries to gradually change to inactivated polio vaccine (IPV). In Vietnam, POLYVAC has been approved and sponsored by the Ministry of Science and Technology to produce IPV under Japanese technology. The vaccine consisting of 3 serotypes (Serotype 1,2 and 3) has been proven safety in volunteer adults.

In this study, a dose escalating study with 3 different dosing regimens of the studied vaccine (IPOVAC) and a licensed vaccine (IMOVAC-Sanofi Pasteur- France) is conducted in Vietnamese children, aged 2 months and above to assess the safety and immunogenicity. Two hundred and forty children are enrolled and placed randomly into 4 groups (60 children/group), each of which receive 3 doses of vaccine subcutaneously, at 4 week interval. Safety issues evaluated include immediate reaction at the site of injection and systemic reaction within 30 min of administration, within 7 days after each dose, unexpected event occur within 30 days of each dose, SAE (from start of dose 1 to 30 days after dose 3), blood cell count, urea, ALT,AST. Seroconversion rates of neutralising antibodies for each of vaccine serotypes are to be assessed.

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 240 is below the median of 476 across 249 interventional studies indexed under Poliomyelitis.

Browse Poliomyelitis studies →

Lead sponsor

National Institute of Hygiene and Epidemiology, Vietnam is the lead sponsor of 9 studies on the registry; 1 is open to participants now.

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

04

Who can participate

Ages eligible
2 Months and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Children of both sexes, 2 months of ages
  • Full term babies (>=37 weeks)
  • Weight at birth (>=2500gr)
  • Have not been vaccinated with polio vaccine or vaccine containing poliovirus components
  • Not currently have acute infection (assessed via clinical check up and asking parents/care givers about health history before enrolment
  • Parents/legal guardians agree to participate their children in this study and sign the .

Exclusion criteria

Exclusion Criteria:

  • Currently have chronic diseases (cardiovascular, liver and spleen related etc)
  • Use (orally or through infection) with corticoid containing drug (>1mg/kg dose)
  • Use of treatment within 4 weeks of enrolment
  • Being immunocompromised and diseases (, lupus)
  • the history of immunocompromised in the family
  • history of high fever
  • Allergic for any vaccine component
  • Fever (>38oC) within 3 days before vaccination or at enrolment
  • Malnourished (3rd level or above)
  • Blood disorder
  • use of vaccines which have not been licences 7 days before enrolment in this study
Terms in these criteria, in plain language(4)

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.

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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.

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.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

05

Study design

Phase
Phase 2
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
240 participants (actual)

Study arms

  • Experimental
    IPOVAC 1.5:5:5

    IPOVAC- POLYVAC Vietnam Composition: Type 1: 1.5DU, Type 2: 5DU, Type 3:5DU Subcutaneous inj 0.5ml/dose, 3 doses, interval 30days +/- 3 days Liquid form

    Biological: IPOVAC 1.5:5:5

  • Experimental
    IPOVAC 3:10:10

    IPOVAC- POLYVAC Vietnam Composition: Type 1: 3DU, Type 2: 10DU, Type 3:10DU Subcutaneous inj 0.5ml/dose, 3 doses, interval 30days +/- 3 days Liquid form

    Biological: IPOVAC, 3:10:10

  • Experimental
    IPOVAC 6:20:20

    IPOVAC- POLYVAC Vietnam Composition: Type 1: 6DU, Type 2: 20DU, Type 3:20DU Subcutaneous inj 0.5ml/dose, 3 doses, interval 30days +/- 3 days Liquid form

    Biological: IPOVAC, 6:20:20

  • Active comparator
    IMOVAC-POLIO

    IMOVAC-POLIO (Sanofi Pasteur), liquid form composition: Type 1 (Mahoney) 40DU, Type 2 (MEF1) 8DU, Type 3 (Saukett) 32 DU, Subcutaneous route 0.5ml/dose, 3 doses, 4-week interval

    Biological: IMOVAC-POLIO

Interventions

  • BiologicalIMOVAC-POLIO

    IMOVAC-POLIO (Sanofi Pasteur), liquid form composition: Type 1 (Mahoney) 40DU, Type 2 (MEF1) 8DU, Type 3 (Saukett) 32 DU, Subcutaneous route 0.5ml/dose, 3 doses, 4-week interval

    Also known as: IMOVAC

  • BiologicalIPOVAC 1.5:5:5

    IPOVAC- POLYVAC Vietnam Composition: Type 1: 1.5DU, Type 2: 5DU, Type 3:5DU Subcutaneous inj 0.5ml/dose, 3 doses, interval 30days +/- 3 days Liquid form

    Also known as: IPOVAC-low

  • BiologicalIPOVAC, 3:10:10

    IPOVAC- POLYVAC Vietnam Composition: Type 1: 3DU, Type 2: 10DU, Type 3:10DU Subcutaneous inj 0.5ml/dose, 3 doses, interval 30days +/- 3 days Liquid form

    Also known as: IPOVAC-medium

  • BiologicalIPOVAC, 6:20:20

    IPOVAC- POLYVAC Vietnam Composition: Type 1: 6DU, Type 2: 20DU, Type 3:20DU Subcutaneous inj 0.5ml/dose, 3 doses, interval 30days +/- 3 days Liquid form

    Also known as: IPOVAC-high

06

What researchers measure

Primary outcomes

  1. Number of participants with treatment-related adverse events after each dose of vaccine

    Number of participants with treatment-related adverse events after each dose of vaccine, immediately after vaccination (within 30 min), within 7 days and 30 days of vaccination, as assessed by CTCAE v.4.0

    Time frame: Upto 30 days after each dose

  2. Number of participants with 4-fold or more increase in in antibody titers after 2 or 3 doses of vaccine (compared to pre-vaccination)

    Seroconversion rate of each IPOVAC regimen and IMOVAC after 2 or 3 doses of vaccines

    Time frame: Upto 30 days after the final dose

Secondary outcomes

  1. Number of participants with treatment-related SAE after each vaccination dose

    Number of participants with treatment-related SAE after each vaccination doses of IPOVAC compared to that of IMOVAC, as assessed by CTCAE ver 4.0

    Time frame: Upto 30 days after vaccine dose

  2. Number of participants with abnormal laboratory value

    Numbers of participants with abnormal laboratory values (blood cell counts, urea concentration, liver function (ALT, AST concentration) when administered with different IPOVAC formulations and with IMOVAC before and after each dose of vaccination

    Time frame: Upto 30 days after each vaccine dose

07

Study locations

2 sites
  • Preventive Medicine center
    Thanh Son, Phu Tho, Vietnam
  • Phu Tho Preventive Medicine Center
    Viet tri, Phu Tho, Vietnam
08

References and documents

Individual participant data

Plan to share: No — Individual data with identification removed are to be available for Ethical committee, Ministry of Health and National Foundation of Science and Technology Development to avoid misuse of data. Public shared data will be in the form of summarised tables and figures.

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Nov 2015, a primary completion of Jul 2016 and a completion of Oct 2016. It does not say whether these dates are actual or estimated.

How these figures are worked out, and which studies are left out of them.

Registered
May 5, 2016
First posted
May 18, 2016
Start
Nov 2015
Primary completionActual
Jul 25, 2016
CompletionActual
Oct 31, 2016
Last update
Jun 29, 2017
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jun 29, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02775942
Lead sponsor
National Institute of Hygiene and Epidemiology, Vietnam
Collaborators
Ministry of Science and Technology, Vietnam
Responsible party
Dang Duc Anh (General Director, National Institute of Hygiene and Epidemiology, Vietnam) — Principal investigator
First posted
May 18, 2016
Start date
Nov 2015
Primary completion
Jul 25, 2016
Completion
Oct 31, 2016
Last update
Jun 29, 2017

Study contacts

Dang D Anh, PhD
principal investigator · National Institute of Hygiene and Epidemiology, Vietnam

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in May 2016. You cannot join it, but the record below documents what was studied.

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