- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01633216
Poliovirus Vaccine Trial in Bangladesh
Assessment of the Immunogenicity of Three Doses of Bivalent, Trivalent or Type One Monovalent Oral Poliovirus Vaccines Provided at 2 or 4 Week Intervals
Study Overview
Status
Conditions
Detailed Description
This is a phase IV, randomized controlled clinical trial of three types of oral poliovirus vaccines provided at 2-week or 4-week intervals.
The study will enroll 1,000 participants from rural Matlab and urban Dhaka.
In this study infants will be given two different types of oral poliovirus vaccine, monovalent OPV type 1 (mOPV1) and bivalent OPV types 1 and 3 (bOPV) using two different schedules: a short schedule with administration at two week intervals and the usual schedule at four week intervals. The immune responses to these vaccines and schedules will be compared with the response to the routine oral polio vaccine schedule in Bangladesh of trivalent oral polio vaccine (tOPV) given at 4 week intervals.
The study will use a randomized controlled trial design. Eligible infants will be randomized at 6 weeks of age to one of five study arms: A) 3 doses of bOPV at 6, 8 and 10 weeks of age (2-week interval between doses); B) 3 doses of bOPV at 6, 10 and 14 weeks of age (4-week interval between doses); C) 3 doses of mOPV1 at 6, 8 and 10 weeks of age (2-week interval between doses); D) 3 doses of mOPV1 at 6, 10 and 14 weeks of age (4-week interval between doses); and E) 3 doses of tOPV at 6, 10 and 14 weeks of age (4-week interval between doses). Currently, tOPV is provided in routine immunization in Bangladesh at the same age as proposed in this study. bOPV, mOPV1 and mOPV3 are licensed in several countries and the World Health Organization (WHO) has recommended its use in immunization campaigns among children 0 to 5 years in response to circulation of type 1 and type 3 wild poliovirus, and to prevent outbreaks in countries at risk.
To assess the immunogenicity of each study vaccine and vaccination schedule, antibody titers against poliovirus types 1, 2 and 3 will be determined in sera extracted from blood collected before (at 6 weeks of age) and after receiving 3 doses of study vaccine. Seroconversion will be defined as a titer 4-fold higher than the expected fall in maternally derived antibodies, assuming a half life of 28 days. The initial antibody titer at 6 weeks of age will be used as the starting point for the expected decline in maternal antibody. We will calculate a one-sided 95% confidence interval for the difference between the proportion of seroconversions achieved in the short interval study arms and the longer interval study arms. If the confidence interval does not include 10%, we will conclude that the short interval is not inferior to the longer interval. This same analysis will be applied to the difference between bOPV and mOPV1.
This study will answer the following questions:
- Is the immunogenicity of 3 doses of bOPV non inferior to that of 3 doses of mOPV1 against type 1 poliovirus?
- Is an interval of 2 weeks between bOPV or mOPV1 doses non inferior to an interval of 4 weeks?
- Will replacement of tOPV with bOPV in the routine immunization schedule achieve similar or higher proportions of children immune to type 1 and 3 polioviruses? The answers to these questions will guide the Global Polio Eradication Program in implementing new strategies that may: 1) improve the quality of the response to outbreaks following importation of wild poliovirus type 1 by shortening the interval at which several OPV doses are provided; and 2) prevent alternate outbreaks of type 1 and type 3 poliovirus by using bOPV instead of monovalent OPVs; and 3) prevent the emergence of type 2 vaccine-derived poliovirus through the replacement of tOPV with bOPVin immunization campaigns and in routine immunization programs.
Study Type
Enrollment (Actual)
Phase
- Phase 4
Contacts and Locations
Study Locations
-
-
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Dhaka, Bangladesh, 1216
- Mirpur
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Chandpur
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Matlab, Chandpur, Bangladesh
- Matlab
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Healthy infants of 6 weeks of age (±2 days).
- Study families reside within the Health and Demographic Surveillance System (HDSS) area, service area of the ICDDR,B.
- Family able to understand and comply with planned study procedures
Exclusion Criteria:
- Family residence outside the ICDDR,B HDSS service area, or families expecting to move away during the study period, will be excluded.
- A diagnosis or suspicion of immunodeficiency disorder (either in the infant or in a member of the immediate family).
- A diagnosis or suspicion of bleeding disorder that would contraindicate venipuncture.
- Acute diarrhea, infection or illness at the time of the first visit (6 weeks of age) that would require infant's admission to a hospital or would contraindicate provision of OPV per country guidelines.
- Acute vomiting and intolerance to liquids within 24 hours before the first visit (6 weeks of age).
- Receipt of OPV or IPV at any time before enrollment based upon mother's recall or immunization card if available.
- Because of contact transmission of vaccine poliovirus strains, newborns from multiple births will be excluded from the study to prevent transmission of vaccine strains received during routine immunization from the twin to the study participant.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Bivalent OPV 2 week interval
Group A will receive 3 doses of bOPV at 6, 8 and 10 weeks of age (2-week interval between doses).
|
Group A will receive 3 doses of bOPV at 6, 8 and 10 weeks of age (2-week interval between doses).
|
Active Comparator: Bivalent OPV 4 week interval
Group B will receive 3 doses of bOPV at 6, 10 and 14 weeks of age (4-week interval between doses).
|
Group B will receive 3 doses of bOPV at 6, 10 and 14 weeks of age (4-week interval between doses).
|
Active Comparator: Monovalent OPV 2week interval
Group C will receive 3 doses of mOPV1 at 6, 8 and 10 weeks of age (2-week interval between doses).
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Group C will receive 3 doses of mOPV1 at 6, 8 and 10 weeks of age (2-week interval between doses).
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Active Comparator: Monovalent OPV 4 week interval
Group D will receive 3 doses of mOPV1 at 6, 10 and 14 weeks of age (4-week interval between doses).
|
Group D will receive 3 doses of mOPV1 at 6, 10 and 14 weeks of age (4-week interval between doses).
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Active Comparator: Trivalent OPV 4 week interval
Group E will receive 3 doses of tOPV at 6, 10 and 14 weeks of age (4-week interval between doses and similar to the current routine immunization schedule).
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Group E will receive 3 doses of tOPV at 6, 10 and 14 weeks of age (4-week interval between doses and similar to the current routine immunization schedule).
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Immunogenicity
Time Frame: 7 months
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To assess the immunogenicity of each study vaccine and vaccination schedule, antibody titers against poliovirus types 1, 2 and 3 will be determined in sera extracted from blood collected before (at 6 weeks of age) and after receiving 3 doses of study vaccine.
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7 months
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Collaborators and Investigators
Publications and helpful links
General Publications
- Emperador DM, Velasquez DE, Estivariz CF, Lopman B, Jiang B, Parashar U, Anand A, Zaman K. Interference of Monovalent, Bivalent, and Trivalent Oral Poliovirus Vaccines on Monovalent Rotavirus Vaccine Immunogenicity in Rural Bangladesh. Clin Infect Dis. 2016 Jan 15;62(2):150-6. doi: 10.1093/cid/civ807. Epub 2015 Sep 8.
- Estivariz CF, Anand A, Gary HE Jr, Rahman M, Islam J, Bari TI, Wassilak SG, Chu SY, Weldon WC, Pallansch MA, Heffelfinger JD, Luby SP, Zaman K. Immunogenicity of three doses of bivalent, trivalent, or type 1 monovalent oral poliovirus vaccines with a 2 week interval between doses in Bangladesh: an open-label, non-inferiority, randomised, controlled trial. Lancet Infect Dis. 2015 Aug;15(8):898-904. doi: 10.1016/S1473-3099(15)00094-8. Epub 2015 Jun 17.
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Other Study ID Numbers
- PR-11064
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