{"id":9334,"date":"2021-12-16T01:40:07","date_gmt":"2021-12-16T00:40:07","guid":{"rendered":"https:\/\/www.fipwarriors.eu\/?p=9334"},"modified":"2023-09-07T16:37:11","modified_gmt":"2023-09-07T14:37:11","slug":"alternativna-liecba-maciek-s-fip-a-prirodzenou-alebo-ziskanou-rezistenciou-na-gs-441524","status":"publish","type":"post","link":"https:\/\/www.fipwarriors.eu\/en\/alternativna-liecba-maciek-s-fip-a-prirodzenou-alebo-ziskanou-rezistenciou-na-gs-441524\/","title":{"rendered":"Alternative treatments for cats with FIP and natural or acquired resistance to GS-441524"},"content":{"rendered":"<p class=\"has-small-font-size wp-block-paragraph\">Niels C. Pedersen, Nicole Jacque, 3.11. 2021<br>P&ocirc;vodn&yacute; &#269;l&aacute;nok: <a href=\"https:\/\/ccah.vetmed.ucdavis.edu\/sites\/g\/files\/dgvnsk4586\/files\/inline-files\/Approaches-to-drug-resistance-in-cats-treated-with-GS-441524-for-FIP-v3.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Alternative treatments for cats with <\/a><a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Infek&#269;n&aacute; peritonit&iacute;da ma&#269;iek (angl. Feline infectious peritonitis, zau&#382;&iacute;van&aacute; skratka FIP) je infek&#269;n&eacute; ochorenie ma&#269;iek sp&ocirc;sobuj&uacute;ce smr&#357;. N&aacute;zov je mierne zav&aacute;dzaj&uacute;ci, preto&#382;e nejde o z&aacute;pal pobru&scaron;nice (&#269;i&#382;e peritonea), ale o z&aacute;pal ciev (vaskulit&iacute;da). Klinick&eacute; pr&iacute;znaky FIP sa v&scaron;ak &#269;asto prejavuj&uacute; vo forme z&aacute;palu pobru&scaron;nice. V&iacute;rus FIP nap&aacute;da v&scaron;ak aj pohrudnicu &ndash; z toho d&ocirc;vodu je niekedy choroba ozna&#269;ovan&aacute; tie&#382; ako Infek&#269;n&aacute; ma&#269;acia polyserozit&iacute;da (Feline infectious polyserositis).&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/fip\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">FIP<\/a> and natural or acquired resistance to GS-441524<\/p>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\"><strong>Skratky:<\/strong><br>SC &ndash; subcutaneous &ndash; podko&#382;ne<br>IV &ndash; intraven&oacute;zne<br>IM &ndash; do svalu<br>PO &ndash; per os &ndash; peror&aacute;lne<br>SID &ndash; raz denne<br>BID &ndash; 2x denne<br>q24h &ndash; raz za 24 hod&iacute;n<br>q12h &ndash; raz za 12 hod&iacute;n<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\">&Uacute;vod<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Rezistencia na antivirotik&aacute; je dobre zdokumentovan&aacute; v pr&iacute;pade chor&ocirc;b, ako s&uacute; HIV\/AIDS a hepatit&iacute;da C. V niektor&yacute;ch pr&iacute;padoch je t&aacute;to rezistencia pr&iacute;tomn&aacute; v infikuj&uacute;com v&iacute;ruse, ale &#269;astej&scaron;ie je d&ocirc;sledkom dlhodobej expoz&iacute;cie lieku. Rezistencia na GC376 <sup>[1]<\/sup> a GS-441524 <sup>[2]<\/sup> bola zdokumentovan&aacute; aj u ma&#269;iek s prirodzene z&iacute;skanou FIP. Rezistencia sa vyv&iacute;ja na z&aacute;klade mut&aacute;ci&iacute; v oblastiach v&iacute;rusov&eacute;ho gen&oacute;mu, ktor&eacute; obsahuj&uacute; ciele pre antiv&iacute;rusov&eacute; lie&#269;ivo. Napr&iacute;klad v prote&aacute;ze (3CLpro) izol&aacute;tu FIPV od ma&#269;ky s rezistenciou na GC376 sa zistilo nieko&#318;ko zmien aminokysel&iacute;n (N25S, A252S alebo K260N) <sup>[3]<\/sup>. Zistilo sa, &#382;e zmena N25S v 3CLpro sp&ocirc;sobuje 1,68-n&aacute;sobn&eacute; zv&yacute;&scaron;enie 50 % inhibi&#269;nej koncentr&aacute;cie GC376 v tkanivov&yacute;ch kult&uacute;rach <sup>[3]<\/sup>. Rezistencia vo&#269;i GC376, hoci bola rozpoznan&aacute; v po&#269;iato&#269;n&yacute;ch ter&eacute;nnych testoch, nebola doteraz op&iacute;san&aacute;. GC376 nie je tak popul&aacute;rny pri lie&#269;be FIP a neodpor&uacute;&#269;a sa pre ma&#269;ky s okul&aacute;rnou alebo neurologickou FIP <sup>[1]<\/sup>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Prirodzen&aacute; rezistencia na GS-441524 bola pozorovan&aacute; u jednej z 31 ma&#269;iek lie&#269;en&yacute;ch na prirodzene z&iacute;skan&uacute; FIP <sup>[2]<\/sup>. Jedna z 31 ma&#269;iek v p&ocirc;vodnej ter&eacute;nnej &scaron;t&uacute;dii GS-441524 sa tie&#382; javila ako rezistentn&aacute;, ke&#271;&#382;e hladiny v&iacute;rusovej <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Ribonukleov&aacute; kyselina. Polymern&iacute; makromolekula, jej&iacute;&#382; z&aacute;kladn&iacute;mi stavebn&iacute;mi jednotkami jsou ribonukleotidy. Je sou&#269;&aacute;st&iacute; v&scaron;ech bun&#283;k a slou&#382;&iacute; k p&#345;enosu informac&iacute; z DNA d&aacute;le do bu&#328;ky. Existuje mnoho druh&#367; RNA s r&#367;zn&yacute;mi funkcemi. Mezi nejzn&aacute;mn&#283;j&scaron;&iacute; pat&#345;&iacute; mRNA (medi&aacute;torov&aacute;), tRNA (transferov&aacute;) a rRNA (ribozom&aacute;ln&iacute;).&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/rna\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">RNA<\/a> sa po&#269;as cel&eacute;ho obdobia lie&#269;by nezn&iacute;&#382;ili a pr&iacute;znaky ochorenia sa nezmiernili. Hoci sa tento v&iacute;rus ne&scaron;tudoval, rezistencia na GS-5734 (Remdesivir), prolie&#269;ivo GS-441524, bola vytvoren&aacute; v tkanivovej kult&uacute;re pomocou aminokyselinov&yacute;ch mut&aacute;ci&iacute; v RNA polymer&aacute;ze a korekt&iacute;vnej exonukle&aacute;ze <sup>[4]<\/sup>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Rezistencia vo&#269;i GS-441524 bola potvrden&aacute; u &#269;asti ma&#269;iek, ktor&eacute; boli lie&#269;en&eacute; na FIP pomocou GS-441524 za posledn&eacute; 3 roky, najm&auml; medzi ma&#269;kami s neurologickou FIP [5]. Rezistencia na GS441524 je zvy&#269;ajne &#269;iasto&#269;n&aacute; a vy&scaron;&scaron;ie d&aacute;vky &#269;asto vylie&#269;ia infekciu alebo v&yacute;razne zn&iacute;&#382;ia pr&iacute;znaky ochorenia po&#269;as trvania lie&#269;by. Zauj&iacute;mav&eacute; je, &#382;e rezistencia na GS-441524 sa zis&#357;uje aj u pacientov s Covid19 lie&#269;en&yacute;ch Remdesivirom <sup>[12]<\/sup>. U imunokompromitovan&eacute;ho pacienta sa vyvinul zd&#314;hav&yacute; priebeh infekcie SARS-CoV-2. Lie&#269;ba Remdesivirom spo&#269;iatku zmiernila pr&iacute;znaky a v&yacute;razne zn&iacute;&#382;ila hladiny v&iacute;rusu, ale ochorenie sa vr&aacute;tilo spolu s ve&#318;k&yacute;m n&aacute;rastom replik&aacute;cie v&iacute;rusu. Sekvenovan&iacute;m cel&eacute;ho gen&oacute;mu sa identifikovala mut&aacute;cia E802D v nsp12 RNA-dependentnej RNA polymer&aacute;ze, ktor&aacute; nebola pr&iacute;tomn&aacute; vo vzork&aacute;ch pred lie&#269;bou a sp&ocirc;sobovala 6-n&aacute;sobn&eacute; zv&yacute;&scaron;enie rezistencie.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Aj ke&#271; u&#382; bola op&iacute;san&aacute; hist&oacute;ria molnupiraviru a jeho ned&aacute;vne pou&#382;itie na lie&#269;bu FIP <sup>[6]<\/sup>, v s&uacute;&#269;asnosti nie s&uacute; k dispoz&iacute;cii &#382;iadne &scaron;t&uacute;die, ktor&eacute; by dokumentovali prirodzen&uacute; alebo z&iacute;skan&uacute; rezistenciu na molnupiravir. Uk&aacute;zalo sa, &#382;e molnupiravir funguje ako mutag&eacute;n RNA vyvol&aacute;vaj&uacute;ci viacer&eacute; defekty vo v&iacute;rusovom gen&oacute;me <sup>[7]<\/sup>, zatia&#318; &#269;o remdesivir\/GS-441524 je neoblig&aacute;tny termin&aacute;tor re&#357;azca RNA <sup>[8]<\/sup>, &#269;o nazna&#269;uje, &#382;e jeho profil rezistencie bude odli&scaron;n&yacute;.<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\">Prekonanie rezistencie vo&#269;i GS-441524<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Rezistenciu na lieky mo&#382;no prekona&#357; len dvomi sp&ocirc;sobmi: 1) postupn&yacute;m zvy&scaron;ovan&iacute;m d&aacute;vky antivirotika, aby sa dosiahli hladiny lie&#269;iva v telesn&yacute;ch tekutin&aacute;ch, ktor&eacute; presahuj&uacute; &uacute;rove&#328; rezistencie, alebo 2) pou&#382;it&iacute;m in&eacute;ho antivirotika, ktor&eacute; m&aacute; in&yacute; mechanizmus rezistencie, bu&#271; samostatne, alebo v kombin&aacute;cii. Doteraz sa volila prv&aacute; mo&#382;nos&#357;, ktor&aacute; sa v mnoh&yacute;ch pr&iacute;padoch uk&aacute;zala ako &uacute;&#269;inn&aacute;. Rezistencia na GS-441524 v&scaron;ak m&ocirc;&#382;e by&#357; &uacute;pln&aacute; alebo tak&aacute; vysok&aacute;, &#382;e zvy&scaron;ovanie d&aacute;vky u&#382; nie je &uacute;&#269;eln&eacute;. V tak&yacute;chto pr&iacute;padoch sa &#269;oraz viac vyu&#382;&iacute;va druh&aacute; mo&#382;nos&#357;. V s&uacute;&#269;asnosti dostupn&yacute;mi alternat&iacute;vami k lieku GS-441524, aj ke&#271; st&aacute;le z neschv&aacute;len&eacute;ho trhu, s&uacute; GC376 a molnupiravir.<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\">Re&#382;imy lie&#269;by antiv&iacute;rusov&yacute;mi liekmi pri rezistencii na GS-441524<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">GC376\/GS-441524<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><br>Kombinovan&yacute; re&#382;im GS\/GC sa osved&#269;il u ma&#269;iek lie&#269;en&yacute;ch GS-441524 v d&aacute;vkach a&#382; 40 mg\/kg bez vylie&#269;enia v d&ocirc;sledku rezistencie na GS-441524. Je vhodnej&scaron;ie zasiahnu&#357; hne&#271;, ako sa zist&iacute; rezistencia na GS-441524, &#269;o umo&#382;n&iacute; vylie&#269;i&#357; ma&#269;ku sk&ocirc;r a s men&scaron;&iacute;mi finan&#269;n&yacute;mi n&aacute;kladmi majite&#318;a.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Spolo&#269;nos&#357; Rainman je s&uacute;&#269;asn&yacute;m dod&aacute;vate&#318;om GC376, ktor&yacute; sa dod&aacute;va v 4 ml injek&#269;n&yacute;ch vialk&aacute;ch s koncentr&aacute;ciou 53 mg\/ml.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>D&aacute;vkovanie GS\/GC:<\/strong> D&aacute;vka GS (SC alebo PO ekvivalent) pri kombinovanej lie&#269;be antivirotikami je rovnak&aacute; ako d&aacute;vka potrebn&aacute; na primeran&uacute; kontrolu pr&iacute;znakov ochorenia. Zvy&#269;ajne je to posledn&aacute; d&aacute;vka pou&#382;it&aacute; pred ukon&#269;en&iacute;m lie&#269;by a vznikom relapsu. K tejto d&aacute;vke GS-441524 sa prid&aacute;va GC376 v d&aacute;vke 20 mg\/kg SC q24h bez oh&#318;adu na formu FIP. Toto je dostato&#269;n&eacute; pre v&auml;&#269;&scaron;inu ma&#269;iek, vr&aacute;tane mnoh&yacute;ch ma&#269;iek s neuro FIP, ale niektor&eacute; bud&uacute; potrebova&#357; vy&scaron;&scaron;ie d&aacute;vky. Ak sa nedosiahne <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;b&amp;gt;Remisia&amp;lt;\/b&amp;gt;&nbsp;je stav, ktor&yacute;m sa ozna&#269;uje zmiernenie a&#382; vymiznutie&nbsp;pr&iacute;znakov&nbsp;choroby. Opakom tohto stavu je&nbsp;relaps.&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/remisia\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">remisia<\/a> klinick&yacute;ch pr&iacute;znakov alebo s&uacute; krvn&eacute; testy znepokojuj&uacute;ce, d&aacute;vka GC376 sa zvy&scaron;uje o 10 mg\/kg a&#382; na 50 mg\/kg SC q24h.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>D&#314;&#382;ka lie&#269;by:<\/strong> Odpor&uacute;&#269;a sa osemt&yacute;&#382;d&#328;ov&aacute; kombinovan&aacute; lie&#269;ba GC\/GS, ktor&aacute; sa prid&aacute;va k predch&aacute;dzaj&uacute;cej monoterapii GS. Niektor&eacute; ma&#269;ky boli vylie&#269;en&eacute; pri 6 t&yacute;&#382;d&#328;och kombinovanej lie&#269;by, ale recid&iacute;va je pravdepodobnej&scaron;ia ako po 8 t&yacute;&#382;d&#328;och.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ved&#318;aj&scaron;ie &uacute;&#269;inky:<\/strong> U v&auml;&#269;&scaron;iny ma&#269;iek sa nevyskytuj&uacute; &#382;iadne z&aacute;va&#382;n&eacute; ved&#318;aj&scaron;ie &uacute;&#269;inky. Pribli&#382;ne jedna z piatich ma&#269;iek v&scaron;ak m&ocirc;&#382;e poci&#357;ova&#357; nevo&#318;nos&#357; alebo nepr&iacute;jemn&eacute; pocity na za&#269;iatku lie&#269;by a ob&#269;as aj dlh&scaron;ie. Zd&aacute; sa, &#382;e tieto ved&#318;aj&scaron;ie &uacute;&#269;inky nie s&uacute; z&aacute;visl&eacute; od d&aacute;vky a mo&#382;no ich lie&#269;i&#357; liekmi proti nevo&#318;nosti, ako s&uacute; Cerenia, Ondansetron alebo Famotid&iacute;n. Zd&aacute; sa, &#382;e u niektor&yacute;ch ma&#269;iek lep&scaron;ie &uacute;&#269;inkoval ondansetr&oacute;n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Molnupiravir<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Molnupiravir bol hl&aacute;sen&yacute; ako &uacute;&#269;inn&yacute; v monoterapii ma&#269;iek s FIP najmenej jedn&yacute;m &#269;&iacute;nskym predajcom GS-441524 <sup>[9]<\/sup>, ale nie s&uacute; &#382;iadne spr&aacute;vy o jeho pou&#382;it&iacute; u ma&#269;iek s rezistenciou na GS-441524. Je v&scaron;ak nepravdepodobn&eacute;, &#382;e by sa rezistencia na GS-441524 roz&scaron;&iacute;rila aj na molnupiravir. Skuto&#269;nos&#357;, &#382;e sa zistilo, &#382;e je &uacute;&#269;inn&yacute; ako peror&aacute;lny liek, ho rob&iacute; atrakt&iacute;vnym aj pre samostatn&uacute; lie&#269;bu, ke&#271;&#382;e mnoh&eacute; ma&#269;ky s rezistenciou na GS-441524 trpeli injekciami ve&#318;mi dlh&eacute; obdobie.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ter&eacute;nna &scaron;t&uacute;dia molnupiraviru &uacute;dajne pozost&aacute;vala z 286 ma&#269;iek s r&ocirc;znymi formami prirodzene sa vyskytuj&uacute;cej FIP, ktor&eacute; boli vy&scaron;etren&eacute; na klinik&aacute;ch pre spolo&#269;ensk&eacute; zvierat&aacute; v USA, Spojenom kr&aacute;&#318;ovstve, Taliansku, Nemecku, Franc&uacute;zsku, Japonsku, Rumunsku, Turecku a &#268;&iacute;ne. Medzi 286 ma&#269;kami, ktor&eacute; sa z&uacute;&#269;astnili na sk&uacute;&scaron;ke, nedo&scaron;lo k &#382;iadnemu &uacute;mrtiu, vr&aacute;tane siedmich ma&#269;iek s o&#269;nou (n=2) a neurologickou (n=5) FIP. Dvadsa&#357;osem z t&yacute;chto ma&#269;iek bolo vylie&#269;en&yacute;ch po 4 &ndash; 6 t&yacute;&#382;d&#328;och lie&#269;by a 258 po 8 t&yacute;&#382;d&#328;och. V&scaron;etky lie&#269;en&eacute; ma&#269;ky zostali zdrav&eacute; o 3 &ndash; 5 mesiacov nesk&ocirc;r, &#269;o je obdobie, po&#269;as ktor&eacute;ho by sa u ma&#269;iek, ktor&eacute; neboli &uacute;spe&scaron;ne vylie&#269;en&eacute;, o&#269;ak&aacute;vali recid&iacute;vy. Tieto &uacute;daje poskytuj&uacute; presved&#269;iv&eacute; d&ocirc;kazy o bezpe&#269;nosti a &uacute;&#269;innosti molnupiraviru pre ma&#269;ky s r&ocirc;znymi formami FIP. D&uacute;fame v&scaron;ak, &#382;e t&aacute;to ter&eacute;nna &scaron;t&uacute;dia bude nap&iacute;san&aacute; vo forme rukopisu, predlo&#382;en&aacute; na recenzn&eacute; konanie a publikovan&aacute;. Napriek tomu sa teraz pred&aacute;va majite&#318;om ma&#269;iek s FIP. Minim&aacute;lne jeden &#271;al&scaron;&iacute; ve&#318;k&yacute; predajca lieku GS-441524 m&aacute; tie&#382; z&aacute;ujem o pou&#382;&iacute;vanie molnupiraviru na FIP, &#269;o nazna&#269;uje dopyt po &#271;al&scaron;ej lie&#269;be ma&#269;iek s FIP antivirotikami.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>D&aacute;vkovanie molnupiraviru:<\/strong> Bezpe&#269;n&eacute; a &uacute;&#269;inn&eacute; d&aacute;vkovanie molnupiraviru u ma&#269;iek s FIP nebolo stanoven&eacute; na z&aacute;klade d&ocirc;kladne kontrolovan&yacute;ch a monitorovan&yacute;ch ter&eacute;nnych &scaron;t&uacute;di&iacute;, ak&eacute; boli vykonan&eacute; napr&iacute;klad pre GC376 [1] a GS-441524 <sup>[2]<\/sup>. Najmenej jeden predajca z &#268;&iacute;ny v&scaron;ak vo svojom reklamnom let&aacute;ku na produkt s n&aacute;zvom Hero-2801 <sup>[9] <\/sup>poskytol niektor&eacute; farmakokinetick&eacute; &uacute;daje a &uacute;daje z ter&eacute;nnych testov Molnupariviru u ma&#269;iek s prirodzene sa vyskytuj&uacute;cou FIP. V t&yacute;chto inform&aacute;ci&aacute;ch nie je jasne uveden&eacute; mno&#382;stvo molnupiraviru v jednej z ich &bdquo;50 mg tabliet&ldquo; a skuto&#269;n&yacute; d&aacute;vkovac&iacute; interval (q12h alebo q24h?). D&aacute;vka pou&#382;it&aacute; v tejto &scaron;t&uacute;dii sa tie&#382; zdala by&#357; pr&iacute;li&scaron; vysok&aacute;. Odhadovan&uacute; po&#269;iato&#269;n&uacute; d&aacute;vku molnupiraviru u ma&#269;iek s FIP mo&#382;no na&scaron;&#357;astie z&iacute;ska&#357; z publikovan&yacute;ch &scaron;t&uacute;di&iacute;  o EIDD-1931 a EIDD-2801 <sup>[15]<\/sup>  <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;in vitro - lat. &amp;quot;V skle&amp;quot; tj. V sk&uacute;mavke, za umel&yacute;ch, laborat&oacute;rnych podmienok. Napr. pri testovan&iacute; &uacute;&#269;inkov chemick&yacute;ch l&aacute;tok na &#382;iv&yacute; organizmus s&uacute; &uacute;&#269;inky sk&uacute;man&eacute; najprv na kult&uacute;re buniek pestovan&yacute;ch v sk&uacute;mavke. In&yacute;m pr&iacute;kladom je oplodnenie in vitro &amp;quot;die&#357;a zo sk&uacute;mavky&amp;quot;, IVF. Porov. in vivo lat. in v; VITRUM sklo&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/in-vitro\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">in vitro<\/a> na bunkov&yacute;ch kult&uacute;rach a laborat&oacute;rnych a ter&eacute;nnych &scaron;t&uacute;di&iacute; GS-441524 <sup>[14,18]<\/sup>. Molnupiravir (EIDD-2801) m&aacute; <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;EC50 - &uacute;&#269;inn&aacute; koncentr&aacute;cia, ktor&aacute; sp&ocirc;sob&iacute; &uacute;&#269;inok (zn&iacute;&#382;en&aacute; reprodukcia, rast a pod.) u 50% testovan&yacute;ch organizmov, &#269;i ktor&aacute; sp&ocirc;sob&iacute; 50 % maxim&aacute;lneho &uacute;&#269;inku, 50% odpove&#271; v testovacej popul&aacute;cii (mg\/L, ml\/L, mol\/L)&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/ec50\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">EC50<\/a> 0,4 uM\/ul proti FIPV v bunkovej kult&uacute;re, zatia&#318; &#269;o EC50 GS-441524 je pribli&#382;ne 1,0 uM\/ul <sup>[18]<\/sup>. Oba maj&uacute; podobn&uacute; peror&aacute;lnu absorpciu pribli&#382;ne 40 &ndash; 50 %, tak&#382;e &uacute;&#269;inn&aacute; subkut&aacute;nna (SC) d&aacute;vka molnupiraviru by bola pribli&#382;ne polovica odpor&uacute;&#269;anej za&#269;iato&#269;nej d&aacute;vky 4 mg\/kg SC q24h pre GS441524 <sup>[14] <\/sup>alebo 2 mg\/kg SC q24h. Peror&aacute;lna (PO) d&aacute;vka by sa zdvojn&aacute;sobila, aby sa zoh&#318;adnila menej &uacute;&#269;inn&aacute; peror&aacute;lna absorpcia na d&aacute;vku 4 mg\/kg PO q24h. Odhadovan&uacute; po&#269;iato&#269;n&aacute; &uacute;&#269;inn&uacute; peror&aacute;lnu d&aacute;vku  molnupiraviru u ma&#269;iek s FIP mo&#382;no vypo&#269;&iacute;ta&#357; aj z dostupn&yacute;ch &uacute;dajov o lie&#269;be Covid-19. Pacientom lie&#269;en&yacute;m Covidom-19 sa pod&aacute;va 200 mg molnupiraviru PO q12h po&#269;as 5 dn&iacute;. T&aacute;to d&aacute;vka bola samozrejme vypo&#269;&iacute;tan&aacute; na z&aacute;klade farmakokinetickej &scaron;t&uacute;die vykonanej na &#318;u&#271;och, a ak priemern&yacute; &#269;lovek v&aacute;&#382;i 60 &ndash; 80 kg (70 kg), &uacute;&#269;inn&aacute; inhibi&#269;n&aacute; d&aacute;vka je ~ 3,0 mg\/kg PO q12h. Ma&#269;ka m&aacute; baz&aacute;lnu r&yacute;chlos&#357; metabolizmu 1,5-kr&aacute;t vy&scaron;&scaron;iu ako &#269;lovek a za predpokladu rovnakej peror&aacute;lnej absorpcie u &#318;ud&iacute; aj ma&#269;iek by minim&aacute;lna d&aacute;vka pre ma&#269;ky pod&#318;a tohto v&yacute;po&#269;tu bola 4,5 mg\/kg PO q12h pri neokul&aacute;rnych a neneurologick&yacute;ch form&aacute;ch FIP. Ak molnupiravir prech&aacute;dza cez hematookul&aacute;rnu a hematoencefalick&uacute; bari&eacute;ru s rovnakou &uacute;&#269;innos&#357;ou ako GS-441524 <sup>[3,18]<\/sup>, d&aacute;vka by sa mala zv&yacute;&scaron;i&#357; na ~1,5 a ~2,0-n&aacute;sobok., aby do&scaron;lo k adekv&aacute;tnemu prieniku do komorovej vody a mozgovomiechov&eacute;ho moku pre ma&#269;ky s o&#269;nou (~8 mg\/kg PO, q12 h), resp. neurologickou FIP (~10 mg\/kg PO, q12 h). Tieto d&aacute;vky s&uacute; porovnate&#318;n&eacute; s d&aacute;vkami pou&#382;&iacute;van&yacute;mi u fretiek , kde 7 mg\/kg q12h udr&#382;iava sterilizuj&uacute;ce hladiny lie&#269;iva v krvi proti v&iacute;rusu chr&iacute;pky (1,86 uM) po&#269;as 24 hod&iacute;n <sup>[10]<\/sup>. D&aacute;vky u fretiek 128 mg\/kg PO q12h sp&ocirc;sobili takmer toxick&eacute; hladiny v krvi, zatia&#318; &#269;o d&aacute;vka 20 mg\/kg PO q12h sp&ocirc;sobila len nepatrne vy&scaron;&scaron;ie hladiny v krvi <sup>[10]<\/sup>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Molnupiravir\/GC376 alebo Molnupiravir\/GS-441524<br><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kombin&aacute;cie molnupiraviru s GC376 alebo GS-441524 sa bud&uacute; pou&#382;&iacute;va&#357; &#269;oraz &#269;astej&scaron;ie, a to nielen kv&ocirc;li synergii alebo doplnen&iacute; ich individu&aacute;lnych antiv&iacute;rusov&yacute;ch &uacute;&#269;inkov, ale aj ako sp&ocirc;sob prevencie liekovej rezistencie. Lie&#269;iv&eacute; koktaily boli ve&#318;mi &uacute;&#269;inn&eacute; pri prevencii liekovej rezistencie u pacientov s HIV\/AIDS <sup>[11]<\/sup>. V s&uacute;&#269;asnosti v&scaron;ak nie s&uacute; k dispoz&iacute;cii dostato&#269;n&eacute; d&ocirc;kazy o bezpe&#269;nosti a &uacute;&#269;innosti kombin&aacute;cie molnupiraviru s GC376 alebo GS-441524 ako po&#269;iato&#269;nej lie&#269;by FIP.<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\">Pr&iacute;padov&eacute; &scaron;t&uacute;die<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><br>Rocky &ndash; DSH MN Neuro FIP<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><br>9-mesa&#269;n&yacute; kastrovan&yacute; koc&uacute;r dom&aacute;cej kr&aacute;tkosrstej ma&#269;ky z&iacute;skan&yacute; ako ma&#269;iatko zo z&aacute;chrannej skupiny mal nieko&#318;ko t&yacute;&#382;d&#328;ov trvaj&uacute;ce z&aacute;chvaty so zvy&scaron;uj&uacute;cou sa frekvenciou, ataxiou a progres&iacute;vnou par&eacute;zou. Krvn&eacute; testy boli bez pozoruhodnost&iacute;. Lie&#269;ba FIP sa za&#269;ala d&aacute;vkou 15 mg\/kg BID GS-441524, ktor&aacute; sa pribli&#382;ne t&yacute;&#382;de&#328; zni&#382;ovala na SID. U ma&#269;ky sa do 24 hod&iacute;n od za&#269;iatku lie&#269;by prejavilo zlep&scaron;enie, z&aacute;chvaty ustali a zv&yacute;&scaron;ila sa jej pohyblivos&#357;. Do 5 dn&iacute; lie&#269;by bola ma&#269;ka op&auml;&#357; schopn&aacute; pohybu. Pribli&#382;ne 2 t&yacute;&#382;dne od za&#269;iatku lie&#269;by sa v&scaron;ak u ma&#269;ky objavila strata zraku, zn&iacute;&#382;en&aacute; pohyblivos&#357;, obnovenie z&aacute;chvatov a &#357;a&#382;kosti s preh&#314;tan&iacute;m. Bola vykonan&aacute; &uacute;prava d&aacute;vky levetiracetamu a prednizol&oacute;nu, ako aj zmena zlo&#382;enia lieku GS-441524, po ktorej nasledovalo prechodn&eacute; zlep&scaron;enie pohyblivosti a preh&#314;tania a zn&iacute;&#382;enie v&yacute;skytu z&aacute;chvatov, celkovo sa v&scaron;ak stav ma&#269;ky zhor&scaron;il. D&aacute;vka lieku GS-441524 sa postupne zvy&scaron;ovala a&#382; na 25 mg\/kg, pri&#269;om zlep&scaron;enie bolo mal&eacute; alebo &#382;iadne. V tomto bode sa pre&scaron;lo na peror&aacute;lne pod&aacute;vanie GS v d&aacute;vke 25 mg\/kg (odhaduje sa, &#382;e zodpoved&aacute; pribli&#382;ne 12,5 mg\/kg) a do 3 dn&iacute; sa ma&#269;ka za&#269;ala pohybova&#357;, zlep&scaron;ilo sa jej videnie a prestali z&aacute;chvaty spolu so zv&yacute;&scaron;en&iacute;m energie a chuti do jedla. Zlep&scaron;ovanie u ma&#269;ky pokra&#269;ovalo pribli&#382;ne 4 t&yacute;&#382;dne pri peror&aacute;lnom pod&aacute;van&iacute; GS-441524, potom ustalo pribli&#382;ne 3 t&yacute;&#382;dne pred r&yacute;chlo postupuj&uacute;cou par&eacute;zou. Boli sk&uacute;&scaron;an&eacute; peror&aacute;lne d&aacute;vky a&#382; do v&yacute;&scaron;ky 30 mg\/kg SC ekvivalentu av&scaron;ak bez &uacute;&#269;inku. Potom sa pre&scaron;lo na injek&#269;n&eacute; pod&aacute;vanie GS-441524 v d&aacute;vke 20 mg\/kg a ma&#269;ka bola do 4 dn&iacute; op&auml;&#357; schopn&aacute; pohybu s dobrou chu&#357;ou do jedla a energiou. Po 2 t&yacute;&#382;d&#328;och sa do d&aacute;vkovacieho re&#382;imu pridala d&aacute;vka GC376 20 mg\/kg BID. Ma&#269;ka ukon&#269;ila 6 t&yacute;&#382;d&#328;ov kombinovanej lie&#269;by GS441524 a GC376 a potom lie&#269;bu ukon&#269;ila. Hoci ma&#269;ka m&aacute; ur&#269;it&eacute; trval&eacute; neurologick&eacute; deficity, jej stav je stabiln&yacute;, m&aacute; dobr&uacute; pohyblivos&#357;, chu&#357; do jedla a aktivitu u&#382; 9 mesiacov od ukon&#269;enia antiv&iacute;rusovej lie&#269;by.<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Video Rockyho: https:\/\/www.youtube.com\/watch?v=RXB_NnfcMOY<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Rocky, 4 months post FIP treatment\" width=\"525\" height=\"295\" src=\"https:\/\/www.youtube.com\/embed\/RXB_NnfcMOY?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Bucky &ndash; DSH MN Neuro\/okul&aacute;rna FIP<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><br>&Scaron;tvormesa&#269;n&yacute; kastrovan&yacute; koc&uacute;r dom&aacute;cej kr&aacute;tkosrstej ma&#269;ky z&iacute;skan&yacute; ako ma&#269;iatko zo z&aacute;chrannej skupiny bol prezentovan&yacute; s mesa&#269;nou anamn&eacute;zou letargie a progres&iacute;vnou anamn&eacute;zou <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;!-- wp:paragraph --&amp;gt;&amp;lt;strong&amp;gt;Ataxie&amp;lt;\/strong&amp;gt;&nbsp;(z&nbsp;&#345;eck&eacute;ho&nbsp;&alpha;&tau;&#940;&xi;&iota;&sigmaf;,&nbsp;latinsky:&nbsp;&amp;lt;em&amp;gt;ataxia&amp;lt;\/em&amp;gt;) je&nbsp;neurologick&yacute;&nbsp;symptom&nbsp;spo&#269;&iacute;vaj&iacute;c&iacute; v poru&scaron;e koordinace pohyb&#367;. Jedn&aacute; se o nespecifick&yacute; klinick&yacute; projev nazna&#269;uj&iacute;c&iacute; dysfunkci &#269;&aacute;sti&nbsp;nervov&eacute; soustavy&nbsp;zodpov&#283;dn&eacute; za koordinaci pohyb&#367;, jako je nap&#345;&iacute;klad&nbsp;moze&#269;ek. Pro ataxii existuje vz&aacute;cn&#283; pou&#382;&iacute;van&eacute; synonymum &ndash; &amp;quot;dystaxie.&amp;quot;&amp;lt;br\/&amp;gt;&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/ataxia\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">ataxie<\/a>, par&eacute;zou zadn&yacute;ch kon&#269;at&iacute;n, pikou, uveit&iacute;dou, anizok&oacute;riou a inkontinenciou mo&#269;u a stolice. Krvn&eacute; testy boli v&auml;&#269;&scaron;inou bez pozoruhodnost&iacute; s v&yacute;nimkou miernej <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;!-- wp:paragraph --&amp;gt;Hyperglobulin&eacute;mia znamen&aacute; abnorm&aacute;lne vysok&uacute; koncentr&aacute;ciu globul&iacute;nov v cirkuluj&uacute;cej krvnej plazme.&amp;lt;br\/&amp;gt;&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/hyperglobulinemia\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">hyperglobulin&eacute;mie<\/a>. Pomer A\/G bol 0,6. Ma&#269;ka bola lie&#269;en&aacute; d&aacute;vkou 10 mg\/kg GS-441524 SC SID po&#269;as 3 t&yacute;&#382;d&#328;ov. Aktivita, ment&aacute;cia a <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Z&aacute;n&#283;t uve&aacute;ln&iacute;ho traktu. M&#367;&#382;e postihovat duhovku (iritis), &#345;asnat&eacute; t&#283;leso (cyklitis), c&eacute;vnatku (chorioiditis).&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/uveitida\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">uveit&iacute;da<\/a> sa zlep&scaron;ili do 72 hod&iacute;n od za&#269;iatku lie&#269;by. Po&#269;as prv&yacute;ch 2 t&yacute;&#382;d&#328;ov sa pozorovalo pomal&eacute; zlep&scaron;enie pohyblivosti a o&#269;n&yacute;ch sympt&oacute;mov, ale potom sa dosiahlo plat&oacute;. Po 3 t&yacute;&#382;d&#328;och sa d&aacute;vka GS-441524 zv&yacute;&scaron;ila na 15 mg\/kg GS-441524 SC SID z d&ocirc;vodu pretrv&aacute;vaj&uacute;ceho neurologick&eacute;ho a o&#269;n&eacute;ho deficitu. Okrem toho sa v tomto &#269;ase zaznamenalo zv&auml;&#269;&scaron;enie &#318;av&eacute;ho oka v d&ocirc;sledku glauk&oacute;mu a oko na&#271;alej op&uacute;chalo a&#382; do jeho odstr&aacute;nenia v 8. t&yacute;&#382;dni lie&#269;by.<br>Vzh&#318;adom na pretrv&aacute;vaj&uacute;cu slabos&#357;\/nedostatok koordin&aacute;cie v panvovej oblasti a narastaj&uacute;cu letargiu sa v 9. t&yacute;&#382;dni d&aacute;vka GS-441524 zv&yacute;&scaron;ila na 20 mg\/kg SC SID [alebo ekvivalentn&uacute; peror&aacute;lnu d&aacute;vku] a o nieko&#318;ko dn&iacute; nesk&ocirc;r sa do re&#382;imu pridalo 20 mg\/kg SC BID GC376. V&yacute;razne zv&yacute;&scaron;en&aacute; aktivita a ochota sk&aacute;ka&#357; na vyv&yacute;&scaron;en&eacute; povrchy sa prejavila do 48 hod&iacute;n od za&#269;iatku lie&#269;by liekom GS376. Kombinovan&aacute; lie&#269;ba GS-441524 a GC376 sa udr&#382;iavala po&#269;as 8 t&yacute;&#382;d&#328;ov. Ma&#269;ka m&aacute; po lie&#269;be rezidu&aacute;lne probl&eacute;my s inkontinenciou, ale inak je 6 mesiacov po lie&#269;be klinicky norm&aacute;lna.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Boris &ndash; Mainsk&aacute; m&yacute;valia MI vlhk&aacute; o&#269;n&aacute; FIP<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><br>P&auml;&#357;mesa&#269;n&yacute; intaktn&yacute; (nekastrovan&yacute;) koc&uacute;r mainskej m&yacute;valej ma&#269;ky, z&iacute;skan&yacute; od chovate&#318;a, mal letargiu, nechutenstvo, bru&scaron;n&yacute; ascites, ka&scaron;e&#318;, an&eacute;miu a neutrof&iacute;liu. Pri stanoven&iacute; diagn&oacute;zy nebol vykonan&yacute; &#382;iadny biochemick&yacute; rozbor. Ma&#269;ka bola lie&#269;en&aacute; 6 mg\/kg GS-441524 SC SID po&#269;as 8 t&yacute;&#382;d&#328;ov. Po &scaron;iestich t&yacute;&#382;d&#328;och lie&#269;by r&ouml;ntgen odhalil uzl&iacute;ky v p&#318;&uacute;cach a po 8 t&yacute;&#382;d&#328;och pretrv&aacute;vala hyperglobulin&eacute;mia. D&aacute;vka GS-441524 sa potom zv&yacute;&scaron;ila na 8 mg\/kg SC SID po&#269;as 4 t&yacute;&#382;d&#328;ov. V krvn&yacute;ch testoch a na r&ouml;ntgenov&yacute;ch sn&iacute;mkach sa zaznamenalo len mal&eacute; zlep&scaron;enie a d&aacute;vka GS-441524 sa zv&yacute;&scaron;ila na 12 mg\/kg SC SID po&#269;as 4 t&yacute;&#382;d&#328;ov, potom nasledovalo zv&yacute;&scaron;enie na 17 mg\/kg po&#269;as 11 t&yacute;&#382;d&#328;ov, 25 mg\/kg po&#269;as 4 t&yacute;&#382;d&#328;ov a 30 mg\/kg po&#269;as 4 t&yacute;&#382;d&#328;ov. Po 25 t&yacute;&#382;d&#328;och lie&#269;by sa ultrazvukom zaznamenali pleur&aacute;lne odch&yacute;lky na &#318;avej strane a r&ouml;ntgenov&eacute; sn&iacute;mky nepreuk&aacute;zali &#382;iadne zlep&scaron;enie p&#318;&uacute;cnych uzl&iacute;n. Okrem toho sa na pravom oku zaznamenala uveit&iacute;da a odchl&iacute;penie sietnice. Boli odobrat&eacute; aspir&aacute;ty p&#318;&uacute;c, ktor&eacute; preuk&aacute;zali z&aacute;pal zodpovedaj&uacute;ci FIP. Po 33 t&yacute;&#382;d&#328;och lie&#269;by sa do re&#382;imu pridalo 20 mg\/kg SC BID GC376 a kombinovan&aacute; lie&#269;ba GS-441524 a GC376 pokra&#269;ovala 12 t&yacute;&#382;d&#328;ov. Zv&yacute;&scaron;en&aacute; aktivita sa zaznamenala v priebehu nieko&#318;k&yacute;ch dn&iacute;. V priebehu 5 t&yacute;&#382;d&#328;ov sa zr&yacute;chlilo priberanie na hmotnosti, zmiernil sa ka&scaron;e&#318; a zv&yacute;&scaron;ila sa urove&#328; energie. Krvn&eacute; testy uk&aacute;zali zlep&scaron;enie pomeru A\/G a r&ouml;ntgenov&eacute; sn&iacute;mky hrudn&iacute;ka preuk&aacute;zali zmen&scaron;enie uzl&iacute;n v p&#318;&uacute;cach. Po 84 d&#328;och kombinovanej antiv&iacute;rusovej lie&#269;by bol pomer A\/G 0,85 a ma&#269;ka sa javila klinicky norm&aacute;lne. Ma&#269;ka je v s&uacute;&#269;asnosti 3 mesiace po lie&#269;be.<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\">Literat&uacute;ra<\/h2>\n\n\n\n<ol class=\"has-small-font-size wp-block-list\"><li>Pedersen NC, Kim Y, Liu H, Galasiti Kankanamalage AC, Eckstrand C, Groutas WC, Bannasch M, Meadows JM, Chang KO. Efficacy of a 3C-like protease inhibitor in treating various forms of acquired feline infectious peritonitis. J Feline Med Surg. 2018; 20(4):378-392.<\/li><li>Pedersen NC, Perron M, Bannasch M, Montgomery E, Murakami E, Liepnieks M, Liu H. efficacy and safety of the nucleoside analog GS-441524 for treatment of cats with naturally occurring feline infectious peritonitis. J Feline Med Surg. 2019; 21(4):271-281.<\/li><li>Perera KD, Rathnayake AD, Liu H, et al. Characterization of amino acid substitutions in feline coronavirus 3C-like protease from a cat with feline infectious peritonitis treated with a protease inhibitor. J. Vet Microbiol. 2019;237:108398. doi:10.1016\/j.vetmic.2019.108398<\/li><li>Agostini ML, Andres EL, Sims AC, et al. Coronavirus susceptibility to the antiviral remdesivir (GS5734) is mediated by the viral polymerase and the proofreading exoribonuclease. MBio 2018; 9. DOI:10.1128\/mBio.00221-18.<\/li><li>Pedersen NC. 2021. The neurological form of FIP and GS-441524 treatment.<br>https:\/\/sockfip.org\/the-neurological-form-of-fip-and-gs-441524-treatment\/<\/li><li>Pedersen NC. The long history of beta-d-n4-hyroxycytidine and its modern application to treatment of covid019 in people and FIP in cats. https:\/\/sockfip.org\/the-long-history-of-beta-d-n4-hydroxycytidineand-its-modern-application-to-treatment-of-covid-19-in-people-and-fip-in-cats\/.<\/li><li>Agostini, M. L. et al. Small-molecule antiviral beta-d-N (4)-hydroxycytidine inhibits a proofreading-intact coronavirus with a high genetic barrier to resistance. J. Virol. 2019; 93, e01348.<\/li><li>Warren, T. K. et al. Therapeutic efficacy of the small molecule GS-5734 against Ebola virus in rhesus monkeys. Nature 2016; 531, 381&ndash;385.<\/li><li>FIP Warriors CZ\/SK &ndash; EIDD-2801 (Molnupiravir) https:\/\/www.fipwarriors.eu\/en\/eidd-2801-molnupiravir\/<\/li><li>Toots M, Yoon JJ, Cox RM, Hart M, Sticher ZM, Makhsous N, Plesker R, Barrena AH, Reddy PG, Mitchell DG, Shean RC, Bluemling GR, Kolykhalov AA, Greninger AL, Natchus MG, Painter GR, Plemper RK. Characterization of orally efficacious influenza drug with high resistance barrier in ferrets and human airway epithelia. Sci Transl Med. 2019;11(515):eaax5866.<\/li><li>Zdanowicz MM. The pharmacology of HIV drug resistance. Am J Pharm Educ. 2006;70(5):100.doi:10.5688\/aj7005100<\/li><li>Gandhi, S, Klein J, Robertson A, et al. De novo emergence of a remdesivir resistance mutation during treatment of persistent SARS-CoV-2 infection in an immunocompromised patient: A case report. medRxiv, 2021.11.08.21266069AID<\/li><\/ol>\n","protected":false},"excerpt":{"rendered":"<p>dr. Pedersen focuses on the development of resistance to GS-441524 and the treatment options for FIP in such cases, for example using GC376 and Molnupiravir.<\/p>","protected":false},"author":1,"featured_media":9350,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","footnotes":""},"categories":[191,187,188,190,1],"tags":[271],"class_list":["post-9334","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dr-pedersen","category-odborne","category-preverejnost","category-preklady","category-genart","tag-eidd"],"featured_image_urls_v2":{"full":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/12\/blackcatprofile-FHD.jpg",1920,1080,false],"thumbnail":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/12\/blackcatprofile-FHD-150x150.jpg",150,150,true],"medium":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/12\/blackcatprofile-FHD-300x169.jpg",300,169,true],"medium_large":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/12\/blackcatprofile-FHD-768x432.jpg",525,295,true],"large":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/12\/blackcatprofile-FHD-1024x576.jpg",525,295,true],"1536x1536":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/12\/blackcatprofile-FHD-1536x864.jpg",1536,864,true],"2048x2048":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/12\/blackcatprofile-FHD.jpg",1920,1080,false],"trp-custom-language-flag":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/12\/blackcatprofile-FHD-18x10.jpg",18,10,true],"twentyseventeen-featured-image":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/12\/blackcatprofile-FHD.jpg",1920,1080,false],"twentyseventeen-thumbnail-avatar":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/12\/blackcatprofile-FHD-100x100.jpg",100,100,true],"woocommerce_thumbnail":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/12\/blackcatprofile-FHD-250x250.jpg",250,250,true],"woocommerce_single":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/12\/blackcatprofile-FHD-350x197.jpg",350,197,true],"woocommerce_gallery_thumbnail":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/12\/blackcatprofile-FHD-100x100.jpg",100,100,true]},"post_excerpt_stackable_v2":"<p>Dr. Pedersen sa zameriava na problematiku vzniku rezistencie na GS-441524 a na mo&#382;nosti lie&#269;by <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Infek&#269;n&aacute; peritonit&iacute;da ma&#269;iek (angl. Feline infectious peritonitis, zau&#382;&iacute;van&aacute; skratka FIP) je infek&#269;n&eacute; ochorenie ma&#269;iek sp&ocirc;sobuj&uacute;ce smr&#357;. N&aacute;zov je mierne zav&aacute;dzaj&uacute;ci, preto&#382;e nejde o z&aacute;pal pobru&scaron;nice (&#269;i&#382;e peritonea), ale o z&aacute;pal ciev (vaskulit&iacute;da). Klinick&eacute; pr&iacute;znaky FIP sa v&scaron;ak &#269;asto prejavuj&uacute; vo forme z&aacute;palu pobru&scaron;nice. V&iacute;rus FIP nap&aacute;da v&scaron;ak aj pohrudnicu &ndash; z toho d&ocirc;vodu je niekedy choroba ozna&#269;ovan&aacute; tie&#382; ako Infek&#269;n&aacute; ma&#269;acia polyserozit&iacute;da (Feline infectious polyserositis).&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/fip\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">FIP<\/a> v tak&yacute;chto pr&iacute;padoch, napr&iacute;klad s vyu&#382;it&iacute;m GC376 a Molnupiraviru.<\/p>\n","category_list_v2":"<a href=\"https:\/\/www.fipwarriors.eu\/en\/category\/dr-pedersen\/\" rel=\"category tag\">Dr. Pedersen<\/a>, <a href=\"https:\/\/www.fipwarriors.eu\/en\/category\/odborne\/\" rel=\"category tag\">Odborn\u00e9<\/a>, <a href=\"https:\/\/www.fipwarriors.eu\/en\/category\/preverejnost\/\" rel=\"category tag\">Pre verejnos\u0165<\/a>, <a href=\"https:\/\/www.fipwarriors.eu\/en\/category\/preklady\/\" rel=\"category tag\">Preklady<\/a>, <a href=\"https:\/\/www.fipwarriors.eu\/en\/category\/genart\/\" rel=\"category tag\">V\u0161eobecn\u00e9 \u010dl\u00e1nky<\/a>","author_info_v2":{"name":"LM","url":"https:\/\/www.fipwarriors.eu\/en\/author\/starman\/"},"comments_num_v2":"0 comments","featured_image_src":"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/12\/blackcatprofile-FHD.jpg","author_info":{"display_name":"L. M.","author_link":"https:\/\/www.fipwarriors.eu\/en\/author\/starman\/"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Alternat\u00edvna lie\u010dba ma\u010diek s FIP a prirodzenou alebo z\u00edskanou rezistenciou vo\u010di GS-441524 - FIP Warriors CZ\/SK \u00ae<\/title>\n<meta name=\"description\" content=\"Dr. Pedersen sa zameriava na problematiku vzniku rezistencie na GS-441524 a na mo\u017enosti lie\u010dby FIP v tak\u00fdchto pr\u00edpadoch, napr\u00edklad s vyu\u017eit\u00edm GC376 a Molnupiraviru.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.fipwarriors.eu\/en\/alternativna-liecba-maciek-s-fip-a-prirodzenou-alebo-ziskanou-rezistenciou-na-gs-441524\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Alternat\u00edvna lie\u010dba ma\u010diek s FIP a prirodzenou alebo z\u00edskanou rezistenciou vo\u010di GS-441524 - FIP Warriors CZ\/SK \u00ae\" \/>\n<meta property=\"og:description\" content=\"Dr. Pedersen sa zameriava na problematiku vzniku rezistencie na GS-441524 a na mo\u017enosti lie\u010dby FIP v tak\u00fdchto pr\u00edpadoch, napr\u00edklad s vyu\u017eit\u00edm GC376 a Molnupiraviru.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fipwarriors.eu\/en\/alternativna-liecba-maciek-s-fip-a-prirodzenou-alebo-ziskanou-rezistenciou-na-gs-441524\/\" \/>\n<meta property=\"og:site_name\" content=\"FIP Warriors CZ\/SK \u00ae\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/groups\/fipczsk\" \/>\n<meta property=\"article:published_time\" content=\"2021-12-16T00:40:07+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-09-07T14:37:11+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/12\/blackcatprofile-FHD.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1080\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"L. 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