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Dogs harboring strains of\n                    <jats:italic>D. immitis<\/jats:italic>\n                    resistant to MLs, the only drug class available for heartworm prevention in the United States, have been documented and proven. As no new products are available utilizing a novel drug class for the prevention of this disease, the only options for combating ML resistance include increasing the dose and\/or changing the dosage regime of current MLs, or by optimizing the formulations of MLs currently available. Moxidectin provides a unique opportunity for optimization of the dose and formulation, which may provide improved efficacy against ML-resistant strains. Currently there are oral, topical, and injectable moxidectin products approved for heartworm prevention in the USA. Two new products (ProHeart\n                    <jats:sup>\u00ae<\/jats:sup>\n                    12 and Simparica Trio\n                    <jats:sup>\u00ae<\/jats:sup>\n                    ), available in many countries around the world including the USA, take advantage of the unique attributes of moxidectin for providing robust heartworm prevention against the strains of heartworm to which most dogs in the USA will likely be exposed. Both products have demonstrated 100% preventive efficacy in laboratory studies against recently collected field strains of heartworm, and also in large field studies, where the majority of dogs were living in the southern USA in areas where ML resistance has been confirmed to occur, therefore under elevated heartworm challenge. Based on the data summarized here, these products offer important advances in heartworm prevention and provide additional options for veterinarians and pet owners to protect their dogs from developing heartworm disease.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>Graphical Abstract<\/jats:bold>\n                  <\/jats:p>","DOI":"10.1186\/s13071-021-05104-7","type":"journal-article","created":{"date-parts":[[2022,3,11]],"date-time":"2022-03-11T07:09:09Z","timestamp":1646982549000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":30,"title":["Moxidectin: heartworm disease prevention in dogs in the face of emerging macrocyclic lactone resistance"],"prefix":"10.1186","volume":"15","author":[{"given":"Molly D.","family":"Savadelis","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tom L.","family":"McTier","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kristina","family":"Kryda","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Steven J.","family":"Maeder","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Debra J.","family":"Woods","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2022,3,11]]},"reference":[{"issue":"1","key":"5104_CR1","doi-asserted-by":"publisher","first-page":"16","DOI":"10.1016\/S0007-1935(17)47453-7","volume":"111","author":"S Kume","year":"1955","unstructured":"Kume S, Itagaki S. 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