Measles, Mumps, Rubella
Conditions
Brief summary
On a previous study conducted in Brazil. The MMR vaccine from 2 different producers had a mumps seroconversion much lower (71%) than the expected 95%, according to the package insert. This could indicate that a substantial proportion of children was not protected after MMR dose.
Detailed description
Given the above and considering: (1) future clinical study with the MMR vaccine produced entirely in Bio-Manguinhos/Fiocruz from technology transfer from GlaxoSmithKline (GSK), (2) the importance to the National Immunization Program (NIP) to provide the population a MMR vaccine to ensure high protection against mumps, similar to what occurs with measles and rubella components, it was considered essential to conduct a preliminary immunogenicity assessment of the MMR vaccine produced by BioManguinhos.
Interventions
MMR (Mumps, Measles and Rubella)
Sponsors
Study design
Eligibility
Inclusion criteria
* Children of both sexes; * Age between 12 months to 23 months and 29 days; * Child in good health, with no significant past medical history; * Have completed blood sampling before vaccination; * Have not been vaccinated with MMR. * Agreement by parents/tutors with the child's participation in the study and signing of the Informed Consent Form (ICF); * Parents/Tutors provide name, address, telephone number and other information for the contact if necessary; * Parents/Tutors able to understand the risks of the experiment, although minimal; * Parents/Tutors able to understand and sign the informed consent form. * Availability of return for collecting post-vaccination samples.
Exclusion criteria
* Children with a history of measles, rubella and / or mumps. * Having received MMR vaccine previously, as documented in vaccination card. * Having received a transfusion of blood or blood products, including immunoglobulins, within last 12 months. * Skin lesions at sites of venipuncture. * Child subject to abnormal bleeding after injections. * Use within 6 months of corticosteroids (excluding topical or aerosol) and immunosuppressants.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Immunoresponse after first dose | 42 days | Assess the immunoresponse for measles, mumps and rubella after vaccination with MMR in children 12-23 months and 29 days old, in the routine of National Immunization Program (NIP) in health units in the city of Rio de Janeiro. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Immunoresponse after revaccination | 42 days | To evaluate the immunoresponse after revaccination of children who did not seroconvert for any of the three components of the vaccine. |
Countries
Brazil