Spatial Repellent Products for the Control of Vector Borne Diseases - Malaria - Kenya (SR-M-KEN)
Studieoversikt
Status
Forhold
Detaljert beskrivelse
The primary epidemiological endpoint will be the incidence density of first time malaria infections among human cohorts during the follow-up period as detected by polymerase chain reaction assay (PCR). This measure will inform PE (the reduction of incidence) between intervention and control study arms using the formula: PE =[(Ip - Ia)/Ip]* 100%; based on an expected minimum effect size of 30%. First time infections in these subjects will offer relatively unambiguous evidence of the extent of exposure to infectious mosquito bites. The primary entomological endpoint will be adult densities of vector species via human-landing catch (HLC) from sentinel households from intervention and control arms over the follow-up period.
Secondary epidemiological endpoints will be the incidence density of first time malaria infections among human cohorts during the follow-up period as detected by microscopy and the total number of cases averted (i.e., all Plasmodium spp. infections in cohort subjects). Secondary entomological endpoints include number of sporozoite infected mosquitoes, parity and species-specific effects of the spatial repellent product.
Both epidemiological and entomological endpoints will be utilized to look at the relationship between SR and PE based on product coverage (to include diversion and community effects) and insect behavior. The prospect of SR associated temporal cumulative effects on study endpoints (epidemiological and entomological) over transmission seasons will also be investigated by using the cumulative incidence of infection over the season and applying a survival curve analysis of the cohort data.
Studietype
Fase
- Ikke aktuelt
Kontakter og plasseringer
Studiesteder
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-
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Kisumu, Kenya
- Kemri-Crc
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Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Beskrivelse
Inclusion Criteria:
- Children aged 6-59 months
- glucose-6-phosphate dehydrogenase (G6PD) normal (qualitative screen) in sites where P. vivax or P. ovale known prevalence rates represent major burden) and whose treatment with primaquine is implemented within national guidelines
- Hb > 5mg/dl
- Temperature ≤38.0°C) and no moderate or severe acute illness/infection on the day of inclusion
- Sleeps in cluster >90% of nights during any given month
- No plans for extended travel (<1month) outside of home during study
- Not participating in another clinical trial investigating a vaccine, drug, medical device, or a medical procedure during the trial
- Provision of assent/informed consent form signed by the subject and by the parent(s) or another legally acceptable representative
Exclusion Criteria:
- children < 6 months or > 5 years
- G6PD deficiency (qualitative screen) in sites where P. vivax or P. ovale known prevalence rates represent major burden and whose treatment with primaquine is implemented within national guidelines
- Severe anemia
- Febrile illness (temperature ≥38.0°C) or moderate or severe acute illness/infection on the day of inclusion
- Sleeps in cluster <90% of nights during any given month
- Plans for extended travel (>1month) outside of home during study
- Participating or planned participation in another clinical trial investigating a vaccine, drug, medical device, or a medical procedure during the trial
- No provision of assent/informed consent form signed by the subject and by the parent(s) or another legally acceptable representative
Studieplan
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Forebygging
- Tildeling: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Firemannsrom
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
|---|---|
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Placebo komparator: Placebo
Placebo-avvisende produkt uten aktiv ingrediens
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Romlig frastøtende produkt - Passiv Emanator.
Navnet på produktet er SHIELD fra SCJohnson
Andre navn:
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Aktiv komparator: Innblanding
Romlig avvisende produkt med aktiv ingrediens
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Transflutrin (aktiv ingrediens)
Andre navn:
Spatial Repellent product
Andre navn:
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Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
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Malariaforekomst
Tidsramme: 104 uker
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Forekomst av malariainfeksjoner blant humane kohorter under oppfølgingsperioden som påvist ved PCR
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104 uker
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Samarbeidspartnere og etterforskere
Sponsor
Etterforskere
- Hovedetterforsker: Neil Lobo, PhD, University of Notre Dame
- Hovedetterforsker: Nicole Achee, PhD, University of Notre Dame
Studierekorddatoer
Studer hoveddatoer
Studiestart
Primær fullføring (Faktiske)
Studiet fullført (Faktiske)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Anslag)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Anslag)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- SR-M-KEN
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