{"id":66809,"date":"2021-04-08T08:33:26","date_gmt":"2021-04-08T06:33:26","guid":{"rendered":"https:\/\/www.cde.ual.es\/?p=66809"},"modified":"2021-09-13T11:08:30","modified_gmt":"2021-09-13T09:08:30","slug":"ema-finds-possible-link-to-very-rare-cases-of-unusual-blood-clots-with-low-blood-platelets","status":"publish","type":"post","link":"https:\/\/www.cde.ual.es\/en\/ema-finds-possible-link-to-very-rare-cases-of-unusual-blood-clots-with-low-blood-platelets\/","title":{"rendered":"EMA finds possible link to very rare cases of unusual blood clots with low blood platelets"},"content":{"rendered":"<h4>EMA confirms overall benefit-risk remains positive<\/h4>\n<p><a href=\"https:\/\/www.cde.ual.es\/wp-content\/uploads\/2021\/01\/vacuna.jpg\"><img decoding=\"async\" class=\"aligncenter  wp-image-60735\" src=\"https:\/\/www.cde.ual.es\/wp-content\/uploads\/2021\/01\/vacuna-1024x576.jpg\" alt=\"\" width=\"512\" height=\"288\" srcset=\"https:\/\/www.cde.ual.es\/wp-content\/uploads\/2021\/01\/vacuna-1024x576.jpg 1024w, https:\/\/www.cde.ual.es\/wp-content\/uploads\/2021\/01\/vacuna-300x169.jpg 300w, https:\/\/www.cde.ual.es\/wp-content\/uploads\/2021\/01\/vacuna-768x432.jpg 768w, https:\/\/www.cde.ual.es\/wp-content\/uploads\/2021\/01\/vacuna-1280x720.jpg 1280w, https:\/\/www.cde.ual.es\/wp-content\/uploads\/2021\/01\/vacuna-1536x864.jpg 1536w, https:\/\/www.cde.ual.es\/wp-content\/uploads\/2021\/01\/vacuna.jpg 1920w\" sizes=\"(max-width: 512px) 100vw, 512px\" \/><\/a><\/p>\n<p>EMA\u2019s safety committee (<a id=\"glossary-term-43230\" class=\"ecl-link glossary-term\" title=\"Pharmacovigilance Risk Assessment Committee -  the committee that is responsible for assessing all aspects of the risk management of medicines for human use.\u00a0\n\n More information can be found under\u00a0'Pharmacovigilance Risk Assessment Committee (PRAC)'.\" href=\"https:\/\/www.ema.europa.eu\/en\/glossary\/prac\" target=\"_blank\" rel=\"noopener\">PRAC<\/a>) has concluded today that unusual blood clots with low blood platelets should be listed as very rare side effects of Vaxzevria (<a href=\"https:\/\/www.cde.ual.es\/en\/european-commission-authorises-the-astrazeneca-vaccine-against-covid-19\/\" target=\"_blank\" rel=\"noopener\">formerly COVID-19 Vaccine AstraZeneca<\/a>).<\/p>\n<p>In reaching its conclusion, the committee took into consideration all currently available evidence, including the advice from an ad hoc expert group.<\/p>\n<p>EMA is reminding healthcare professionals and people receiving the vaccine to remain aware of the possibility of very rare cases of blood clots combined with low levels of blood platelets occurring within 2 weeks of vaccination. So far, most of the cases reported have occurred in women under 60 years of age within 2 weeks of vaccination. Based on the currently available evidence, specific risk factors have not been confirmed.<\/p>\n<p>People who have received the vaccine should seek medical assistance immediately if they develop symptoms of this combination of blood clots and low blood platelets (see below).<\/p>\n<p>The\u00a0<a id=\"glossary-term-43230\" class=\"ecl-link glossary-term\" title=\"Pharmacovigilance Risk Assessment Committee -  the committee that is responsible for assessing all aspects of the risk management of medicines for human use.\u00a0\n\n More information can be found under\u00a0'Pharmacovigilance Risk Assessment Committee (PRAC)'.\" href=\"https:\/\/www.ema.europa.eu\/en\/glossary\/prac\" target=\"_blank\" rel=\"noopener\">PRAC<\/a>\u00a0noted that the blood clots occurred in veins in the brain (cerebral venous sinus thrombosis, CVST) and the abdomen (splanchnic vein thrombosis) and in arteries, together with low levels of blood platelets and sometimes bleeding.<\/p>\n<p>The Committee carried out an in-depth review of 62 cases of cerebral venous sinus thrombosis and 24 cases of splanchnic vein thrombosis reported in the EU drug safety database (<a id=\"glossary-term-43199\" class=\"ecl-link glossary-term\" title=\"A centralised European database of suspected adverse reactions to medicines that are authorised or being studied in clinical trials in the European Economic Area (EEA).\u00a0\n\n More information can be found under 'EudraVigilance'.\u00a0\" href=\"https:\/\/www.ema.europa.eu\/en\/glossary\/eudravigilance\" target=\"_blank\" rel=\"noopener\">EudraVigilance<\/a>) as of 22 March 2021, 18 of which were fatal. The cases came mainly from spontaneous reporting systems of the EEA and the UK, where around 25 million people had received the vaccine.<\/p>\n<p><a href=\"https:\/\/www.cde.ual.es\/en\/coronavirus-present-situation-in-europe\/\" target=\"_blank\" rel=\"noopener\">COVID-19<\/a> is associated with a risk of hospitalisation and death. The reported combination of blood clots and low blood platelets is very rare, and the overall benefits of the <a href=\"https:\/\/www.cde.ual.es\/en\/covid-19-vaccination-in-europe\/\" target=\"_blank\" rel=\"noopener\">vaccine in preventing COVID-19<\/a> outweigh the risks of side effects.<\/p>\n<p>EMA\u2019s scientific assessment underpins the safe and effective use of COVID-19 vaccines. Use of the vaccine during vaccination campaigns at national level will also take into account the pandemic situation and vaccine availability in the individual Member State.<\/p>\n<p>One plausible explanation for the combination of blood clots and low blood platelets is an immune response, leading to a condition similar to one seen sometimes in patients treated with heparin (heparin induced thrombocytopenia, HIT). The\u00a0<a id=\"glossary-term-43230\" class=\"ecl-link glossary-term\" title=\"Pharmacovigilance Risk Assessment Committee -  the committee that is responsible for assessing all aspects of the risk management of medicines for human use.\u00a0\n\n More information can be found under\u00a0'Pharmacovigilance Risk Assessment Committee (PRAC)'.\" href=\"https:\/\/www.ema.europa.eu\/en\/glossary\/prac\" target=\"_blank\" rel=\"noopener\">PRAC<\/a>\u00a0has requested new studies and amendments to ongoing ones to provide more information and will take any further actions necessary.<\/p>\n<p>The\u00a0<a id=\"glossary-term-43230\" class=\"ecl-link glossary-term\" title=\"Pharmacovigilance Risk Assessment Committee -  the committee that is responsible for assessing all aspects of the risk management of medicines for human use.\u00a0\n\n More information can be found under\u00a0'Pharmacovigilance Risk Assessment Committee (PRAC)'.\" href=\"https:\/\/www.ema.europa.eu\/en\/glossary\/prac\" target=\"_blank\" rel=\"noopener\">PRAC<\/a>\u00a0stresses the importance of prompt specialist medical treatment. By recognising the signs of bloods clots and low blood platelets and treating them early, healthcare professionals can help those affected in their recovery and avoid complications.<\/p>\n<h3>More informaci\u00f3n<\/h3>\n<p><a href=\"https:\/\/www.ema.europa.eu\/en\/news\/astrazenecas-covid-19-vaccine-ema-finds-possible-link-very-rare-cases-unusual-blood-clots-low-blood\">EMA &#8211; Press release<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>EMA confirms overall benefit-risk remains positive EMA\u2019s safety committee (PRAC) has concluded today that unusual blood clots with low blood platelets should be listed as very rare side effects of Vaxzevria (formerly COVID-19 Vaccine AstraZeneca). In reaching its conclusion, the committee took into consideration all currently available evidence, including the advice from an ad hoc [&hellip;]<\/p>\n","protected":false},"author":101011,"featured_media":60735,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[4093,346,4092],"tags":[2598,1352,700],"class_list":{"0":"post-66809","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-diseases","8":"category-eu-news","9":"category-health","10":"tag-astrazeneca-en","11":"tag-covid-19","12":"tag-vaccine-en","13":"entry"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>EMA finds possible link to very rare cases of unusual blood clots with low blood platelets | CDE Almer\u00eda - Centro de Documentaci\u00f3n Europea - Universidad de Almer\u00eda<\/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.cde.ual.es\/en\/ema-finds-possible-link-to-very-rare-cases-of-unusual-blood-clots-with-low-blood-platelets\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"EMA finds possible link to very rare cases of unusual blood clots with low blood platelets | CDE Almer\u00eda - Centro de Documentaci\u00f3n Europea - Universidad de Almer\u00eda\" \/>\n<meta property=\"og:description\" content=\"EMA confirms overall benefit-risk remains positive EMA\u2019s safety committee (PRAC) has concluded today that unusual blood clots with low blood platelets should be listed as very rare side effects of Vaxzevria (formerly COVID-19 Vaccine AstraZeneca). 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