Efficacy of a novel topical combination of esafoxolaner, eprinomectin and praziquantel against Amblyomma americanum in cats

被引:4
|
作者
Prullage, Joe [1 ]
Baker, Christine [2 ]
Mansour, Abdelmoneim [3 ]
McCall, Scott [3 ]
Young, David [4 ]
Tielemans, Eric [5 ]
机构
[1] Boehringer Ingelheim Anim Hlth, Missouri Res Ctr, 6498 Jade Rd, Fulton, MO 65251 USA
[2] Boehringer Ingelheim Anim Hlth, 1730 Olymp Dr, Athens, GA 30601 USA
[3] TRS Labs Inc, 215 Paradise Blvd, Athens, GA 30607 USA
[4] Young Vet Res Serv, 7243 East Ave, Turlock, CA 95380 USA
[5] Boehringer Ingelheim Anim Hlth, 29 Ave Tony Garnier, F-69007 Lyon, France
关键词
Cat; Esafoxolaner; Tick; Efficacy; Amblyomma americanum; CYTAUXZOON-FELIS INFECTION; SPECIES INFESTING DOGS; DOMESTIC CATS; TICKS; IXODIDAE; ACARI; TRANSMISSION; PREVALENCE; DISEASE; ECTOPARASITES;
D O I
10.1051/parasite/2021021
中图分类号
R38 [医学寄生虫学]; Q [生物科学];
学科分类号
07 ; 0710 ; 09 ; 100103 ;
摘要
Esafoxolaner, a purified enantiomer of afoxolaner with insecticidal and acaricidal properties, is combined with eprinomectin and praziquantel in NexGard((R)) Combo, a novel topical endectoparasiticide product for cats. The efficacy of this novel formulation was assessed in two experimental studies against induced infestations with Amblyomma americanum, a tick species of major importance, highly prevalent in a large southeastern quarter of the United States. In each study, 10 cats were randomly allocated to a placebo control group and 10 cats to a novel formulation treated group. Infested cats were treated topically once at the minimum recommended dose. Both studies were designed to test curative efficacy on existing infestation, 72 h after treatment, and to test preventive efficacy, 72 h after subsequent weekly (Study #1) or fortnightly (Study #2) infestations for one month. For each infestation, all cats were infested with 50 unfed adult A. americanum. At each tick count, in both studies, at least 8 in 10 placebo control cats were infested with 13 (26%) or more live ticks, demonstrating adequate infestation throughout the studies. Curative efficacy of the novel formulation was 99% in both studies; preventive efficacy was 92% and 100% for at least one month. L'esafoxolaner, un enantiomere purifie d'afoxolaner aux proprietes insecticides et acaricides, est associe a l'eprinomectine et au praziquantel dans NexGard((R)) Combo, un nouvel endectoparasiticide topique pour chats. L'efficacite de cette nouvelle formulation a ete evaluee dans deux etudes experimentales contre les infestations induites par Amblyomma americanum, une espece de tique d'importance majeure, tres repandue dans un grand quart sud-est des Etats-Unis. Dans chaque etude, dix chats ont ete repartis au hasard dans un groupe temoin placebo et dix chats dans un groupe traite par une nouvelle formulation. Les chats infestes ont ete traites une fois par voie topique a la dose minimale recommandee. Les deux etudes ont ete concues pour tester l'efficacite curative sur une infestation existante, 72 heures apres le traitement, et pour tester l'efficacite preventive, 72 heures apres des infestations hebdomadaires (etude n degrees 1) ou bimensuelles (etude n degrees 2) pendant un mois. Pour chaque infestation, tous les chats etaient infestes par 50 A. americanum adultes non nourris. chaque decompte de tiques, dans les deux etudes, au moins 8 chats sur 10 du groupe temoin placebo etaient infestes de 13 (26 %) ou plus tiques vivantes, ce qui demontre une infestation adequate tout au long des etudes. L'efficacite curative de la nouvelle formulation etait de 99 % dans les deux etudes, l'efficacite preventive etait de 92 % et 100 % pendant au moins un mois.
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页数:6
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