Clinical trial NCT02111135: Safety Study of a Single Dose of Monovalent High-dose Inactivated Poliovirus Type 2 Vaccine (m-IPV2 HD) in Infants Early in Life
Official title: Phase II, Observer-blind, Randomized Study on the Safety, Reactogenicity, Immunogenicity and Impact on Intestinal Shedding of a Single Dose of Monovalent High-dose Inactivated Poliovirus Type 2 Vaccine (m-IPV2 HD) or a Single Dose of Standard Trivalent Inactivated Poliovirus Vaccine (t-IPV) When Given Concomitantly With the Third Dose of Bivalent Oral Poliovirus Vaccine (b-OPV) to Infants Early in Life
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE2
Conditions: Polio
Lead sponsor: Vaxtrials S.A.
Sponsor class: OTHER
Collaborators: name: Bill and Melinda Gates Foundation
First posted: 2014-04-10
Enrollment: 240
Sex: ALL
Minimum age (years): 6
Maximum age (years): 6
Standard ages: CHILD
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: Phase II, observer-blind, randomized study on the safety, reactogenicity, immunogenicity and impact on intestinal shedding of a single dose of monovalent high-dose inactivated poliovirus type 2 vaccine (m-IPV2 HD) or a single dose of standard trivalent inactivated poliovirus vaccine (t-IPV) when given concomitantly with the third dose of bivalent oral poliovirus vaccine (b-OPV) to infants early in life


Eligibility criteria: Inclusion Criteria:

1. Age: 6 weeks (-7 to +14 days).
2. Healthy without obvious medical conditions that preclude the subject to be in the study as established by the medical history and physical examination.
3. Written informed consent obtained from 1 or 2 parents or legal guardian as per Panama regulations.

Exclusion Criteria:

1. Previous vaccination against poliovirus.
2. Low birth weight (BW \<2,500 gm).
3. Any confirmed or suspected immunosuppressive or immunodeficient condition including human immunodeficiency virus (HIV) infection.
4. Family history of congenital or hereditary immunodeficiency.
5. Major congenital defects or serious uncontrolled chronic illness (neurologic, pulmonary, gastrointestinal, hepatic, renal, or endocrine).
6. Known allergy to any component of the study vaccines.
7. Uncontrolled coagulopathy or blood disorder contraindicating intramuscular injections.
8. Administration of immunoglobulins and/or any blood products since birth or planned administration during the study period.
9. Acute severe febrile illness at day of vaccination deemed by the Investigator to be a contraindication for vaccination (the child can be included at a later time if within age window and all in/exclusion criteria are met.).
10. Member of the subject's household (living in the same house or apartment unit) has received OPV in the last 3 months.
11. Subject who, in the opinion of the Investigator, is unlikely to comply with the protocol or is inappropriate to be included in the study for the safety or the benefit-risk ratio of the subject.

Primary outcomes:
measure: Safety
timeFrame: 6 weeks
measure: Efficacy
timeFrame: 4 weeks
Secondary outcomes:
Other outcomes:
Locations:
city: Panama
country: Panama
facility: Hospital del Niño
Study officials:
affiliation: Hospital Del Niño
name: Xavier Sáez, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Brickley EB, Strauch CB, Wieland-Alter WF, Connor RI, Lin S, Weiner JA, Ackerman ME, Arita M, Oberste MS, Weldon WC, Saez-Llorens X, Bandyopadhyay AS, Wright PF. Intestinal Immune Responses to Type 2 Oral Polio Vaccine (OPV) Challenge in Infants Previously Immunized With Bivalent OPV and Either High-Dose or Standard Inactivated Polio Vaccine. J Infect Dis. 2018 Jan 17;217(3):371-380. doi: 10.1093/infdis/jix556.
citation: Saez-Llorens X, Clemens R, Leroux-Roels G, Jimeno J, Clemens SA, Weldon WC, Oberste MS, Molina N, Bandyopadhyay AS. Immunogenicity and safety of a novel monovalent high-dose inactivated poliovirus type 2 vaccine in infants: a comparative, observer-blind, randomised, controlled trial. Lancet Infect Dis. 2016 Mar;16(3):321-30. doi: 10.1016/S1473-3099(15)00488-0. Epub 2015 Dec 21.