Efficacy and safety of sarolaner in the treatment of canine ear mite infestation caused by Otodectes cynotis: a non‐inferiority study
2018
Becskei, Csilla | Cuppens, Otto | Mahabir, Sean P.
BACKGROUND: Various treatments are available for ear mite infestations in dogs. OBJECTIVE: The efficacy of sarolaner was evaluated against ear mite infestation caused by Otodectes cynotis in dogs and compared with topical moxidectin/imidacloprid in a single‐masked, multi‐centre field study. ANIMALS: Client‐owned dogs with O. cynotis infestation were treated monthly with oral sarolaner (n = 163) or topical moxidectin/imidacloprid (n = 78). METHODS: The presence of mites in the ear canals and the clinical signs associated with otoacariasis (including head shaking, pruritus/ear scratching, trauma or alopecia of the pinnae, and erythema, ulceration and debris in the ear canals) was evaluated on days 0, 14 and 30, and, if applicable, on day 60. Dogs were considered cured of mite infestation following one (on day 0) or two (on days 0 and 30) monthly treatments, if no live mites were found in either ear. Non‐inferiority was evaluated at days 14 and 30. RESULTS: Parasitological cure was achieved in 76.4%, 90.5% and 93.3% of the sarolaner‐treated and in 53.9%, 63.5% and 66.7% of the moxidectin/imidacloprid‐treated dogs on days 14, 30 and 60, respectively. At study completion, on day 60 at the latest, parasitological cure was achieved overall in 99.4% of sarolaner‐treated and 87.8% of moxidectin/imidacloprid‐treated cases. The parasitological cure rate for sarolaner was non‐inferior to moxidectin/imidacloprid at days 14 and 30. The clinical signs of otoacariasis improved throughout the study in both groups. There were no treatment‐related adverse events. CONCLUSIONS: A single oral administration of sarolaner was safe and highly effective in the treatment of O. cynotis infestation in dogs.
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