{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T15:51:21Z","timestamp":1777909881111,"version":"3.51.4"},"reference-count":50,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[2019,1,30]],"date-time":"2019-01-30T00:00:00Z","timestamp":1548806400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Journal of Ocular Pharmacology and Therapeutics"],"published-print":{"date-parts":[[2019,2,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose:<\/jats:title>\n                    <jats:p>To assess safety and tolerability of a subconjunctival penciclovir implant in cats infected with feline herpesvirus type 1 (FHV-1).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>\n                      Subconjunctival blank (\n                      <jats:italic toggle=\"yes\">n<\/jats:italic>\n                      \u2009=\u20094 cats) or penciclovir-impregnated (\n                      <jats:italic toggle=\"yes\">n<\/jats:italic>\n                      \u2009=\u20096) silicone implants were placed bilaterally in 10 normal, FHV-1-naive cats 7\u20138 days before viral inoculation. Outcomes included disease score, FHV-1 serology, conjunctival viral load, Schirmer tear tests (STT), tear film break-up times (TFBUTs), conjunctival histology, goblet cell density (GCD), body weight, tear and plasma penciclovir concentration, and corneal ulcer evaluation.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      Both groups had similar clinical and histologic disease scores, STT values, TFBUTs, GCD, FHV-1 titers, viral loads, and body weight changes. No ocular or systemic signs of toxicity were noted. Tear penciclovir concentration varied widely among cats and across time points. Tear penciclovir concentrations exceeded the lowest published half maximal inhibitory concentration (IC\n                      <jats:sub>50<\/jats:sub>\n                      ) in 5\/6 treated cats. Plasma penciclovir concentrations remained below 10\u2009ng\/mL. Cats with higher tear penciclovir concentrations at inoculation and\/or time of peak disease had fewer corneal ulcers than cats in which tear penciclovir concentrations were inconsistent, low, or unrecordable.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>\n                      Subconjunctival blank and penciclovir-impregnated implants were well tolerated at the ocular surface and not associated with systemic toxicity, adverse effect, or appreciable plasma penciclovir concentrations. Tear penciclovir concentrations &gt;IC\n                      <jats:sub>50<\/jats:sub>\n                      were sometimes achieved, especially during burst release soon after implant placement. Further study is necessary to determine efficacy of locally delivered penciclovir when penciclovir concentration is consistently maintained above IC\n                      <jats:sub>50<\/jats:sub>\n                      . This will be especially useful in patients unable to receive systemic therapy.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1089\/jop.2018.0043","type":"journal-article","created":{"date-parts":[[2018,12,18]],"date-time":"2018-12-18T15:46:58Z","timestamp":1545148018000},"page":"38-49","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":5,"title":["Pilot Study of the Safety and Tolerability of a Subconjunctival Penciclovir Implant in Cats Experimentally Infected with Herpesvirus"],"prefix":"10.1177","volume":"35","author":[{"given":"Jill C.","family":"Covert","sequence":"first","affiliation":[{"name":"Department of Surgical and Radiological Sciences, University of California-Davis, Davis, California."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sara M.","family":"Thomasy","sequence":"additional","affiliation":[{"name":"Department of Surgical and Radiological Sciences, 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