- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT01486355
Additional Measles Vaccine at 4 Months of Age
A Randomised Trial of an Additional Measles Vaccine at 4 Months of Age to Reduce Child Mortality and to Explore the Role of Maternal Measles Antibodies for the Beneficial Non-specific Effects of Measles Vaccine
Overall objective: To conduct a randomised controlled trial (RCT) to examine whether an early two-dose measles vaccination (MV) strategy at 4 and 9 months will reduce child mortality compared with the WHO strategy of one dose of MV at 9 months.
Specific hypotheses Hypothesis I) Two doses of MV at 4 and 9 months compared with the standard dose of MV at 9 months will reduce mortality by 30% between 4 months and 5 years of age1. As in a previous trial it is expected that the beneficial effect is strongest for girls.
Hypothesis II) Children receiving MV at 4 months in the presence of maternal measles antibodies (MatAb) will have 35% lower mortality between 4 months and 5 years of age than children receiving MV at 4 months with no detectable MatAb.
Implications: These hypotheses are based on a previous RCT showing strong beneficial effects of providing an early measles vaccine, in particular among children with MatAb.
Studieoversigt
Undersøgelsestype
Fase
- Fase 4
Kontakter og lokationer
Studiesteder
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Bissau, Guinea-Bissau, 1004
- Rekruttering
- Bandim Health Project
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Ledende efterforsker:
- Cesario L Martins, MD, PhD
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Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Children aged 4 to 7 months who received the third dose of pentavalent vaccine at least 4 weeks earlier
Exclusion Criteria:
- Malformations
- Severely ill
- Severely malnourished
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Forebyggelse
- Tildeling: Randomiseret
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
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Eksperimentel: Early measles vaccine
Receives an early measles vaccine in addition to the standard measles vaccine at 9 months of age
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Edmonston-Zagreb measles vaccine
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Ingen indgriben: No early measles vaccine
Receives only the standard measles vaccine at 9 months of age
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
|---|---|
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Mortality
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Differences in mortality rates between the intervention and control groups
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Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
|---|---|
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Morbidity
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Symptoms of infection
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Hospitalisations/consultations
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Visits to health center for consultation due to illness, hospitalisation
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Growth
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Weight, length, arm circumference
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Measles infection
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Measles infection assessed by medical doctor and/or verified by blood samples
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Samarbejdspartnere og efterforskere
Sponsor
Publikationer og nyttige links
Generelle publikationer
- Aaby P, Martins CL, Garly ML, Bale C, Andersen A, Rodrigues A, Ravn H, Lisse IM, Benn CS, Whittle HC. Non-specific effects of standard measles vaccine at 4.5 and 9 months of age on childhood mortality: randomised controlled trial. BMJ. 2010 Nov 30;341:c6495. doi: 10.1136/bmj.c6495.
- Nielsen S, Fisker AB, da Silva I, Byberg S, Biering-Sorensen S, Bale C, Barbosa A, Bjerregaard-Andersen M, Hansen NS, Do VA, Baek O, Rasmussen SM, Damkjaer L, Hvidt S, Baltzersen O, Rodrigues A, Martins C, Jensen KJ, Whittle HC, Smits G, van der Klis F, Aaby P, Benn CS. Effect of early two-dose measles vaccination on childhood mortality and modification by maternal measles antibody in Guinea-Bissau, West Africa: A single-centre open-label randomised controlled trial. EClinicalMedicine. 2022 May 27;49:101467. doi: 10.1016/j.eclinm.2022.101467. eCollection 2022 Jul.
- Hansen NS, Byberg S, Hervig Jacobsen L, Bjerregaard-Andersen M, Jensen AKG, Martins C, Aaby P, Skov Jensen J, Benn CS, Whittle H. Effect of early measles vaccine on pneumococcal colonization: A randomized trial from Guinea-Bissau. PLoS One. 2017 May 17;12(5):e0177547. doi: 10.1371/journal.pone.0177547. eCollection 2017. Erratum In: PLoS One. 2019 Oct 30;14(10):e0224782.
- Christensen LD, Eriksen HB, Biering-Sorensen S, Bale C, Do VA, Andersen A, Martins CL, Sodemann M, Aaby P, Benn CS. The effect of early measles vaccination on thymic size. A randomized study from Guinea-Bissau. Vaccine. 2014 Mar 26;32(15):1641-4. doi: 10.1016/j.vaccine.2014.01.034. Epub 2014 Feb 9.
Hjælpsomme links
Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Forventet)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- MVurban
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