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Impact of two annual single-dose mass drug administrations with diethylcarbamazine alone or in combination with albendazole on Wuchereria bancrofti microfilaraemia and antigenaemia in south India.

Identifieur interne : 008788 ( Main/Exploration ); précédent : 008787; suivant : 008789

Impact of two annual single-dose mass drug administrations with diethylcarbamazine alone or in combination with albendazole on Wuchereria bancrofti microfilaraemia and antigenaemia in south India.

Auteurs : R. Rajendran [Inde] ; I P Sunish ; T R Mani ; A. Munirathinam ; S Md Abdullah ; N. Arunachalam ; K. Satyanarayana

Source :

RBID : pubmed:15024928

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English descriptors

Abstract

A two-arm community-based lymphatic filariasis elimination trial is being carried out in Tamil Nadu state, India to assess the effect of 2 annual single-dose mass drug administrations of diethylcarbamazine + albendazole (DEC + ALB) on microfilaraemia and antigenaemia in one arm, and diethylcarbamazine(DEC) alone in the other arm. In a cross-sectional survey at each time-point, 450-650 subjects in childhood (2-9 years old) and young adulthood (10-25 years old) were screened from each treatment arm. After 2 annual mass drug administrations, microfilaraemia prevalence in the 2-drug arm was reduced by 54% and 62% in the 2-9 year old and 10-25 year old groups respectively; and corresponding figures for the single-drug arm were 26% and 37%. Though higher reductions were recorded for geometric mean intensity of microfilaraemia in the 2-9 year old groups for both treatment arms, reduction was more pronounced in the 2-drug arm than the single drug arm (74% vs. 24%) in the 10-25 year old group. The reduction in the antigenaemia prevalence in the 2-9 year old group was evident in both treatment arms, but in the 10-25 year old group the reduction was only 16.8% in the 2-drug arm. Our results suggest that the annual, single-dose combination (DEC + ALB) mass treatment regimen has an enhanced effect against bancroftian filariasis compared to single-drug therapy.

PubMed: 15024928


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Le document en format XML

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<term>Adolescent</term>
<term>Adult</term>
<term>Albendazole (administration & dosage)</term>
<term>Animals</term>
<term>Anthelmintics (administration & dosage)</term>
<term>Antigens, Helminth (blood)</term>
<term>Child</term>
<term>Child, Preschool</term>
<term>Cross-Sectional Studies</term>
<term>Diethylcarbamazine (administration & dosage)</term>
<term>Drug Administration Schedule</term>
<term>Drug Therapy, Combination</term>
<term>Elephantiasis, Filarial (prevention & control)</term>
<term>Humans</term>
<term>Patient Compliance</term>
<term>Treatment Outcome</term>
<term>Wuchereria bancrofti</term>
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<term>Adolescent</term>
<term>Adulte</term>
<term>Albendazole (administration et posologie)</term>
<term>Animaux</term>
<term>Antigènes d'helminthe (sang)</term>
<term>Antihelminthiques (administration et posologie)</term>
<term>Association de médicaments</term>
<term>Calendrier d'administration des médicaments</term>
<term>Diéthylcarbamazine (administration et posologie)</term>
<term>Enfant</term>
<term>Enfant d'âge préscolaire</term>
<term>Filariose lymphatique ()</term>
<term>Humains</term>
<term>Observance thérapeutique</term>
<term>Résultat thérapeutique</term>
<term>Wuchereria bancrofti</term>
<term>Études transversales</term>
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<term>Anthelmintics</term>
<term>Diethylcarbamazine</term>
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<term>Antigens, Helminth</term>
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<keywords scheme="MESH" qualifier="administration et posologie" xml:lang="fr">
<term>Albendazole</term>
<term>Antihelminthiques</term>
<term>Diéthylcarbamazine</term>
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<keywords scheme="MESH" qualifier="prevention & control" xml:lang="en">
<term>Elephantiasis, Filarial</term>
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<keywords scheme="MESH" qualifier="sang" xml:lang="fr">
<term>Antigènes d'helminthe</term>
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<term>Adult</term>
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<term>Child</term>
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<term>Treatment Outcome</term>
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<term>Calendrier d'administration des médicaments</term>
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<term>Humains</term>
<term>Observance thérapeutique</term>
<term>Résultat thérapeutique</term>
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<div type="abstract" xml:lang="en">A two-arm community-based lymphatic filariasis elimination trial is being carried out in Tamil Nadu state, India to assess the effect of 2 annual single-dose mass drug administrations of diethylcarbamazine + albendazole (DEC + ALB) on microfilaraemia and antigenaemia in one arm, and diethylcarbamazine(DEC) alone in the other arm. In a cross-sectional survey at each time-point, 450-650 subjects in childhood (2-9 years old) and young adulthood (10-25 years old) were screened from each treatment arm. After 2 annual mass drug administrations, microfilaraemia prevalence in the 2-drug arm was reduced by 54% and 62% in the 2-9 year old and 10-25 year old groups respectively; and corresponding figures for the single-drug arm were 26% and 37%. Though higher reductions were recorded for geometric mean intensity of microfilaraemia in the 2-9 year old groups for both treatment arms, reduction was more pronounced in the 2-drug arm than the single drug arm (74% vs. 24%) in the 10-25 year old group. The reduction in the antigenaemia prevalence in the 2-9 year old group was evident in both treatment arms, but in the 10-25 year old group the reduction was only 16.8% in the 2-drug arm. Our results suggest that the annual, single-dose combination (DEC + ALB) mass treatment regimen has an enhanced effect against bancroftian filariasis compared to single-drug therapy.</div>
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