{"id":102015,"date":"2025-08-22T07:02:08","date_gmt":"2025-08-22T07:02:08","guid":{"rendered":"https:\/\/www.mymsd.ch\/it\/?post_type=product&#038;p=102015"},"modified":"2026-02-20T08:04:09","modified_gmt":"2026-02-20T08:04:09","slug":"meccanismo-dazione","status":"publish","type":"product","link":"https:\/\/www.mymsd.ch\/it\/products\/welireg\/meccanismo-dazione\/","title":{"rendered":"Meccanismo d\u2019azione"},"content":{"rendered":"\n<h1 class=\"wp-block-heading has-border-color has-has-red-border-color-border-color has-text-color has-link-color wp-elements-81f6eee933303c58765897844d4a3fab  mhh-mcn-v1-heading mhh-mcn-v1-heading--8de2d97488541dd75b8bdb42ec2af9fa\" style=\"color:#123a8a\">Come agisce WELIREG\u00ae?<\/h1>\n\n\n\n<p class=\"has-border-color has-has-red-border-color-border-color   mhh-mcn-v1-paragraph mhh-mcn-v1-paragraph--19f2e6bb8874c73ded9eec21e3632e66\">WELIREG\u00ae \u00e8 un inibitore del\u2019HIF-2\u03b1 che agisce nel nucleo cellulare e pu\u00f2 ridurre la trascrizione di specifici geni bersaglio che favoriscono la crescita di alcuni tumori.<sup>1<\/sup><\/p>\n\n\n\n<p class=\"has-border-color has-has-red-border-color-border-color   mhh-mcn-v1-paragraph mhh-mcn-v1-paragraph--5da385932c5697b0bdb133a674acb07f\">In condizioni di carenza di ossigeno, l&#8217;HIF-2\u03b1 attiva dei geni che promuovono la proliferazione cellulare, l&#8217;angiogenesi e la crescita tumorale. Normalmente, l&#8217;HIF-2\u03b1 viene degradato dalla proteina VHL. In condizioni di ipossia o in presenza di una proteina VHL difettosa, l&#8217;HIF-2\u03b1 si accumula e si stabilizza, migra nel nucleo cellulare dove interagisce con l&#8217;HIF-1\u03b2, attivando cos\u00ec dei geni che favoriscono la crescita. WELIREG\u00ae impedisce l&#8217;interazione HIF-2\u03b1\/HIF-1\u03b2 e inibisce quindi l&#8217;attivazione di questi geni bersaglio.<sup>1<\/sup><\/p>\n\n\n\n<p class=\"has-border-color has-has-red-border-color-border-color   mhh-mcn-v1-paragraph mhh-mcn-v1-paragraph--7895f76ddc3c57f0c8d905e0cc28aa60\">WELIREG\u00ae \u00e8 indicato per determinati tumori associati alla malattia di VHL e per determinati carcinomi renali avanzati (aRCC).<sup>1<\/sup><\/p>\n\n\n<div class=\"mhh-mcn-columns mhh-mcn-v1-columns--fc7df30ce98d7d4284bcce516871c93b mhh-mcn-v1-columns mhh-mcn-columns--gutter-m\">\n    <div class=\"mhh-mcn-columns-inner\">\n        \n<div class=\"mhh-mcn-v1-column mhh-mcn-v1-column--9d868bac18358936d21b523ac257cec5 mhh-mcn-column mhh-mcn-column--12 mhh-mcn-column--m-3 mhh-mcn-column--l-3\">\n    <\/div>\n\n\n<div class=\"mhh-mcn-v1-column mhh-mcn-v1-column--09a7d9038cc1b6be2f768a9e5d26121e mhh-mcn-column mhh-mcn-column--12 mhh-mcn-column--m-6 mhh-mcn-column--l-6\">\n    \n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n<\/div>\n\n\n<div class=\"mhh-mcn-v1-column mhh-mcn-v1-column--9d868bac18358936d21b523ac257cec5 mhh-mcn-column mhh-mcn-column--12 mhh-mcn-column--m-3 mhh-mcn-column--l-3\">\n    <\/div>\n\n    <\/div>\n\n    <\/div>\n\n\n\n<h2 dir=\"ltr\" lang=\"it-IT\" class=\"wp-block-heading  has-border-color has-has-red-border-color-border-color has-text-color has-link-color wp-elements-e27f098c3da8c65686d6bf3582465978 mhh-mcn-v1-heading--center mhh-mcn-v1-heading mhh-mcn-v1-heading--a9434161aa810e1029d17d5a1d92f23a\" style=\"color:#123a8a\">WELIREG\u00ae pu\u00f2 bloccare l&#8217;interazione&nbsp;dell\u2019HIF-2\u03b1&nbsp;con l\u2019HIF-1\u03b2, con conseguente riduzione della trascrizione e dell&#8217;espressione&nbsp;dei geni&nbsp;bersaglio di&nbsp;HIF-2\u03b1.<sup>1<\/sup><\/h2>\n\n\n<div class=\"mhh-mcn-columns mhh-mcn-v1-columns--fc7df30ce98d7d4284bcce516871c93b mhh-mcn-v1-columns mhh-mcn-columns--gutter-m\">\n    <div class=\"mhh-mcn-columns-inner\">\n        \n<div class=\"mhh-mcn-v1-column mhh-mcn-v1-column--9d868bac18358936d21b523ac257cec5 mhh-mcn-column mhh-mcn-column--12 mhh-mcn-column--m-3 mhh-mcn-column--l-3\">\n    <\/div>\n\n\n<div class=\"mhh-mcn-v1-column mhh-mcn-v1-column--09a7d9038cc1b6be2f768a9e5d26121e mhh-mcn-column mhh-mcn-column--12 mhh-mcn-column--m-6 mhh-mcn-column--l-6\">\n    \n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n<\/div>\n\n\n<div class=\"mhh-mcn-v1-column mhh-mcn-v1-column--9d868bac18358936d21b523ac257cec5 mhh-mcn-column mhh-mcn-column--12 mhh-mcn-column--m-3 mhh-mcn-column--l-3\">\n    <\/div>\n\n    <\/div>\n\n    <\/div>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<figure class=\"mhh-mcn-v1-image mhh-mcn-v1-image--413c232d401daebbe1c594c346b149f7\">\n                    <img loading=\"lazy\" decoding=\"async\"\n        class=\"mhh-mcn-image mhh-mcn-image--full wp-image-102080\"\n        src=\"https:\/\/www.mymsd.ch\/it\/wp-content\/uploads\/sites\/47\/2025\/04\/I-WELIREG-MOA.jpg?quality=80&#038;lossy=1\"\n        width=\"1024\"\n        height=\"512\"\n                alt=\"welireg\"\n            \/>\n            <\/figure>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"mhh-mcn-columns mhh-mcn-v1-columns--91a7cd95fd0e4e051b00b9cb0f5b1341 mhh-mcn-v1-columns mhh-mcn-columns--gutter-m\">\n    <div class=\"mhh-mcn-columns-inner\">\n        \n<div class=\"mhh-mcn-v1-column mhh-mcn-v1-column--31b002f58ee92f453f188722e82b73c1 mhh-mcn-column mhh-mcn-column--12 mhh-mcn-column--m-12 mhh-mcn-column--l-12\">\n    <\/div>\n\n    <\/div>\n\n    <\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n<div class=\"mhh-mcn-v1-links mhh-mcn-v1-links--4a91073cfc5134869172824e6108f655\">\n    <a class=\"mhh-mcn-v1-link mhh-mcn-v1-link--67a7fe7ddd4f88e8ea0fe998e28c77df\" href=\"mailto:%20dpoc.switzerland@msd.com\" target=\"_self\" aria-label=\"All&#039;occorrenza, \u00e8 possibile richiedere copie delle pubblicazioni degli studi all&#039;indirizzo dpoc.switzerland@msd.com.\">\n                    <span class=\"mhh-mcn-v1-link__label\">All&#8217;occorrenza, \u00e8 possibile richiedere copie delle pubblicazioni degli studi all&#8217;indirizzo dpoc.switzerland@msd.com.<\/span>\n                <\/a><\/div>\n\n\n\n<div style=\"height:32px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"mhh-mcn-columns mhh-mcn-v1-columns--319af005902dccaf77bfb92cd4d610d9 mhh-mcn-v1-columns mhh-mcn-columns--gutter-m\">\n    <div class=\"mhh-mcn-columns-inner\">\n        \n<div class=\"mhh-mcn-v1-column mhh-mcn-v1-column--2d494b8250a64e6ac3e3555cdee9dec5 mhh-mcn-column mhh-mcn-column--12 mhh-mcn-column--m-12 mhh-mcn-column--l-12\">\n    \n\n<h5 class=\"wp-block-heading has-border-color has-has-red-border-color-border-color  mhh-mcn-v1-heading mhh-mcn-v1-heading--5497ecbace14f9138395717afd43b5c0\"><em><strong>Abbreviazioni<\/strong>:<\/em><\/h5>\n\n\n\n<p class=\"has-gray-700-color has-text-color has-object-object-font-size has-border-color has-has-red-border-color-border-color   mhh-mcn-v1-paragraph mhh-mcn-v1-paragraph--fe7043607195a0df18f8dc40cb2f5886\"><em><mark class=\"has-inline-color has-black-color\"><strong>aRCC<\/strong>: carcinoma a cellule renali avanzato (advanced renal cell carcinoma) ; <strong>HIF<\/strong>: fattore inducibile dall&#8217;ipossia (hypoxia-inducible factor); <strong>VHL<\/strong>: Von-Hippel-Lindau.<\/mark><\/em><\/p>\n\n<\/div>\n\n    <\/div>\n\n    <\/div>\n\n\n<div class=\"mhh-mcn-columns mhh-mcn-v1-columns--260b588e06a3f9786687c9e2b992a2aa mhh-mcn-v1-columns mhh-mcn-columns--gutter-m\">\n    <div class=\"mhh-mcn-columns-inner\">\n        \n<div class=\"mhh-mcn-v1-column mhh-mcn-v1-column--36bc4b63ad05e40b3220e96af0a35720 mhh-mcn-column mhh-mcn-column--12 mhh-mcn-column--m-12 mhh-mcn-column--l-12\">\n    \n\n<h5 class=\"wp-block-heading has-border-color has-has-red-border-color-border-color  mhh-mcn-v1-heading mhh-mcn-v1-heading--c36bf57eff82e3c0023bfa9023160089\"><em><strong>Riferimenti bibliografici:<\/strong> <\/em><\/h5>\n\n\n\n<ol class=\"mhh-mcn-v2-clist mhh-mcn-v2-clist--913d1691ac200bb4374a5a586159116c mhh-mcn-list mhh-mcn-v2-clist--ordered mhh-mcn-v2-clist--ordered-decimal\" dir=\"ltr\" lang=\"en-US\" start=\"1\">\n    \n<li class=\"mhh-mcn-list-item mhh-mcn-v2-list-item\">\n    <em>Informazione professionale di WELIREG\u00ae (belzutifan)<mark class=\"has-inline-color has-gray-700-color\"><mark class=\"has-inline-color has-gray-700-color\">,\u00a0<a href=\"https:\/\/www.swissmedicinfo.ch\/ShowText.aspx?textType=FI&amp;lang=DE&amp;authNr=68531\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">www.swis<\/a><a href=\"https:\/\/www.swissmedicinfo.ch\/ShowText.aspx?textType=FI&amp;lang=IT&amp;authNr=68531\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">smedicinfo.ch<\/a><\/mark><\/mark>, ultima consultazione il 22.08.2025.<\/em>    <\/li>\n\n<\/ol>\n\n<\/div>\n\n    <\/div>\n\n    <\/div>\n\n\n\n<p class=\"has-object-object-font-size has-border-color has-has-red-border-color-border-color   mhh-mcn-v1-paragraph mhh-mcn-v1-paragraph--84ee1a1d0e390781bce60c385eafe198\">\u25bc <em>Questo medicamento \u00e8 soggetto a monitoraggio addizionale. Per ulteriori informazioni, vedere l\u2019informazione professionale di WELIREG\u00ae su  <a href=\"https:\/\/www.swissmedicinfo.ch\/ShowText.aspx?textType=FI&amp;lang=IT&amp;authNr=68531\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">www.swissmedicinfo.ch<\/a>.<\/em><br><br><em>Prima della prescrizione, consultare l\u2019informazione professionale completa pubblicata sul sito &nbsp;<a href=\"https:\/\/www.swissmedicinfo.ch\/ShowText.aspx?textType=FI&amp;lang=IT&amp;authNr=68531\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">www.swissmedicinfo.ch<\/a>.<\/em><\/p>\n\n\n<div class=\"mhh-mcn-v1-links mhh-mcn-v1-links--d45c0a02c1c8d3ab434885d14fc893f8\">\n    <a class=\"mhh-mcn-v1-link mhh-mcn-v1-link--8e36526b1be316f1b5bf47c7ff30bf28 mhh-mcn-v1-link--is-variation mhh-mcn-v1-link--button-custom\" href=\"https:\/\/swissmedicinfo.ch\/showText.aspx?textType=FI&#038;lang=IT&#038;authNr=68531&#038;supportMultipleResults=1\" target=\"_blank\" rel=\"noopener noreferrer\" aria-label=\"Informazione professionale di WELIREG\u00ae\">\n                    <span class=\"mhh-mcn-v1-link__label\">Informazione professionale di WELIREG\u00ae<\/span>\n                <\/a><\/div>\n\n\n<div class=\"mhh-mcn-v1-links mhh-mcn-v1-links--fa89c056680883a2ec9706c4eaef9fe8\">\n    <a class=\"mhh-mcn-v1-link mhh-mcn-v1-link--937794a7295f4297d1457c44d974563a mhh-mcn-v1-link--is-variation mhh-mcn-v1-link--button-custom\" href=\"https:\/\/www.mymsd.ch\/it\/succinctstatement\/welireg\/\" target=\"_blank\" rel=\"noopener noreferrer\" aria-label=\"Informazione professionale breve di WELIREG\u00ae\">\n                    <span class=\"mhh-mcn-v1-link__label\">Informazione professionale breve di WELIREG\u00ae<\/span>\n                <\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>WELIREG\u00ae \u2013 Un inibitore di HIF-2\u03b1<\/p>\n","protected":false},"author":202221,"featured_media":103094,"parent":101996,"menu_order":2,"template":"","meta":{"_mhh_sticky_footer_settings":{"entityId":0},"_mhh_sticky_footer_posts":"","_mhh_sticky_footer_expanded":false,"_mhh_mcn_text_direction":"","_mhh_mcn_language":"","_mhh_mcn_left_sidebar_settings":{"entityId":0},"_mhh_mcn_sidebar_settings":{"entityId":0},"mhh_mcn_side_navigation_style":{"fontSize":{"l":"","m":"","s":""},"lineHeight":{"l":1.5,"m":1.5,"s":1.5},"itemColor":"","hoverItemColor":"","currentItemColor":"","borderItemColor":"","backgroundItemHoverColor":"","themeColor":""},"_mhh_mcn_child_page_navigation":{"isActive":true,"isSticky":true},"hide_header":false,"show_top_bar":false,"hide_footer":false,"full_width_layout":false,"product_resource":[],"related_products":"","fact_sheet":null,"scientific_title":"","job_code":"","banner":103095,"primary_logo":null,"secondary_logo":null,"icon":null,"primary_tag":1017,"editor_notices":[],"mconnectHideShareThis":false,"footnotes":"","mconnectIsArchiveTemplate":false,"mconnectArchiveFiltersDisabled":false,"mconnectArchiveLockAllPresetFilters":false,"mconnectArchiveHidePageSubmenu":false,"mconnectArchiveShowParentPageOnly":false,"mconnectArchiveDefaultOrder":"DESC","mconnectArchiveDefaultOrderBy":"date","mconnectArchivePostsPerPage":12,"mconnectArchivePostTypes":[],"mconnectArchiveAllowFilterBy":["category","tx-content-type","tx-product","tx-pathology","tx-active-ingredient","tx-therapeutic-area"],"mconnectArchiveFilterSorting":["active","is_keyword","is_date"],"mconnectArchiveContentItemStyle":{"showExcerpt":true,"showImage":true,"showIcon":false,"showPrimaryTag":true,"showBorder":false,"showDates":false,"showCta":true,"isCard":false,"hasBackground":false,"showMetadata":true},"mconnectArchiveLayout":{"type":"list","hasFeatured":false},"mconnectDynamicTaxonomyEntities":[],"mconnectArchiveTerms_category":[],"mconnectArchiveAllowTerms_category":[],"mconnectArchiveTerms_tx-content-type":[],"mconnectArchiveAllowTerms_tx-content-type":[],"mconnectArchiveTerms_tx-product":[],"mconnectArchiveAllowTerms_tx-product":[],"mconnectArchiveTerms_tx-pathology":[],"mconnectArchiveAllowTerms_tx-pathology":[],"mconnectArchiveTerms_tx-active-ingredient":[],"mconnectArchiveAllowTerms_tx-active-ingredient":[],"mconnectArchiveTerms_tx-therapeutic-area":[],"mconnectArchiveAllowTerms_tx-therapeutic-area":[],"mconnectArchiveAllowTerms_dynamic-taxonomy":[],"mconnectArchiveLegacyDefaultTermsApplied":false,"mconnectContentUpdatesPerPage":10,"mconnectContentUpdatesViewMoreUrl":"","mconnectContentUpdatesTerms_tx-content-type":[],"mconnectContentUpdatesTerms_tx-product":[],"mconnectContentUpdatesTerms_tx-pathology":[],"mconnectContentUpdatesTerms_tx-active-ingredient":[],"mconnectContentUpdatesTerms_tx-therapeutic-area":[],"sidebar_toogle":0,"sidebar_toogle_notification_warning":true,"sidebar_toogle_notification_alert":true,"content_expiration_sidebar_date":"","content_expiration_sidebar_expired_post_status":"","content_expiration_sidebar_redirection":""},"categories":[],"tags":[1017,1018],"ga4_page_audience":[],"ga4_page_birn_id":[],"ga4_page_branding":[501],"ga4_page_businessunit":[507],"ga4_page_campaign":[],"ga4_page_content_purpose":[],"ga4_page_customer_journey_stage":[],"ga4_page_customer_specialty":[],"ga4_page_experience":[],"ga4_page_indication":[],"ga4_page_material_intent":[713],"ga4_page_product":[],"ga4_page_region":[],"ga4_page_therapeuticarea":[],"tx-therapeutic-area":[280,229],"tx-product":[1016],"tx-pathology":[413,1019],"tx-content-type":[285],"tx-active-ingredient":[],"access":[],"user_status":[],"user_role":[],"class_list":["post-102015","product","type-product","status-publish","has-post-thumbnail","hentry","tag-welireg","tag-welireg-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Meccanismo d\u2019azione - MyMSD.ch IT<\/title>\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.mymsd.ch\/it\/products\/welireg\/meccanismo-dazione\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Meccanismo d\u2019azione - MyMSD.ch IT\" \/>\n<meta property=\"og:description\" content=\"WELIREG\u00ae \u2013 Un inibitore di HIF-2\u03b1\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.mymsd.ch\/it\/products\/welireg\/meccanismo-dazione\/\" \/>\n<meta property=\"og:site_name\" content=\"MyMSD.ch IT\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-20T08:04:09+00:00\" \/>\n<meta property=\"og:image\" 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