{"id":36360,"date":"2016-03-18T10:05:47","date_gmt":"2016-03-18T09:05:47","guid":{"rendered":"https:\/\/blogs.bmj.com\/bmj\/?p=36360"},"modified":"2016-03-21T11:02:44","modified_gmt":"2016-03-21T10:02:44","slug":"jeff-aronson-when-i-use-a-word-naming-biologics","status":"publish","type":"post","link":"https:\/\/blogs.bmj.com\/bmj\/2016\/03\/18\/jeff-aronson-when-i-use-a-word-naming-biologics\/","title":{"rendered":"Jeff Aronson: When I Use a Word \u2026 Naming biologics\u2014rINNs and pINNs"},"content":{"rendered":"<p><a href=\"https:\/\/blogs.bmj.com\/bmj\/files\/2014\/12\/jeffrey_aronson.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-32935\" src=\"https:\/\/blogs.bmj.com\/bmj\/files\/2014\/12\/jeffrey_aronson-223x300.jpg\" alt=\"jeffrey_aronson\" width=\"137\" height=\"184\" srcset=\"https:\/\/blogs.bmj.com\/bmj\/files\/2014\/12\/jeffrey_aronson-223x300.jpg 223w, https:\/\/blogs.bmj.com\/bmj\/files\/2014\/12\/jeffrey_aronson.jpg 446w\" sizes=\"auto, (max-width: 137px) 100vw, 137px\" \/><\/a>This week I went to Harrogate to take part in the Royal College of Physicians&#8217; (RCP\u2019s) annual conference \u201cMedicine 2016\u201d, to contribute to a session on biological medicines (biologics). It included talks on micro-RNAs by John Warren, interleukins and dermatology by Richard Warren, CD receptors and haematology by Anthony Goldstone, epidermal growth factor receptors and oncology by Helmout Modjtahedi, and TNF alfa and rheumatology by Karim Raza, all expertly chaired by Robin Ferner. In the space of just 90 minutes the speakers gave us a mind-blowing whistle-stop tour of the latest developments in each area.<\/p>\n<p>My brief was to kick off the session (picture) by reviewing the naming of biologics and its relevance to medication errors and adverse drug reactions.<!--more--><\/p>\n<p>All drugs have up to three types of names:<\/p>\n<ul>\n<li>The chemical name, formulated according to the rules of the <a href=\"http:\/\/www.iupac.org\/\">International Union of Pure and Applied Chemistry<\/a>; for example, (R)\u00ad1\u00ad(3,4\u00addihydroxyphenyl)\u00ad2\u00admethylaminoethanol.<\/li>\n<li>The approved (official or generic) name, which is usually the World Health Organization&#8217;s recommended or proposed International Nonproprietary Name (rINN or pINN) but may be some locally approved name; for some chemical names, such as glyceryl trinitrate and acetylsalicylic acid, an INN is not issued. The monster named above is better known as <a href=\"http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/10678871\">adrenaline<\/a> (British Approved Name) or epinephrine (rINN).<\/li>\n<li>Proprietary (brand or trade) names, created by pharmaceutical manufacturers; for example, adrenaline for intramuscular injection is marketed in Britain as Emerade, Epipen, and Jext.<\/li>\n<\/ul>\n<p>In most cases the WHO finds it possible to assign rINNs. However, in 438 cases (4.75% of 9217 INNs in all) objections have been raised to suggested names, and these have remained proposed INNs (pINNs). For example, the name \u201camantadine,\u201d proposed in 1965, is still a pINN because <a href=\"http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/5837383\">an objection remains on file<\/a>. In practice, this is not problematic, because the major national systems recognize amantadine as an acceptable name.<\/p>\n<p>Here is how drugs get INNs. The Marketing Authorization Holder, i.e. the company that has patented the compound and hopes to market it, applies to an expert panel of international nomenclature experts, drawn from a wide range of countries and convened under the aegis of the World Health Organization\u2019s INN Programme Secretariat, to have an INN assigned to a compound. The WHO liaises with various national nomenclature committees and regulatory agencies, such as the British Pharmacopoeia Commission\u2019s Expert Advisory Group on Nomenclature, which I chair. There are several national naming schemes, the best known being British Approved Names (BANs), d\u00e9nomination commune fran\u00e7aise (DCFs), Japanese Accepted Names for Pharmaceuticals (JANs), and US Adopted Names (USANs), but the INNs are widely used. For example, the Council of the European Communities requires the so-called common name to be used on medicine labels, and according to <a href=\"http:\/\/data.europa.eu\/eli\/dir\/1992\/27\/oj\">directive 92\/27\/EEC<\/a>, the common name means the INN, where one exists.<\/p>\n<p>Biological products (biologics) include vaccines, blood and blood components, allergenics, somatic cells, gene therapy, tissues (e.g. corneas, skin, sperm), and recombinant therapeutic proteins. They can be composed of saccharides (e.g. heparins), proteins (e.g. monoclonal antibodies), nucleic acids (e.g. antisense oligonucleotides), complex combinations of these, or cells or tissues. They can be produced from human or animal sources or from micro-organisms. Now, some drugs that come from <a href=\"http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/22201868\">micro-organisms<\/a> (e.g. penicillin, streptomycin, tetracyclines) are small molecules and are not regarded as biologics. I therefore add to the definition of biologics a requirement that they should generally have a large enough molecular weight, say at least 2000 Daltons, to be distinguished from the largest small molecules, such as teicoplanin, which has a variable molecular weight but can be as large as 1909 Daltons.<\/p>\n<p>Individual biologics are named in accordance with the same principles that govern small molecules. Next time I shall discuss those principles, how they are applied, and the extent to which INNs are formulated in accordance with them.<\/p>\n<p><a href=\"https:\/\/blogs.bmj.com\/bmj\/2016\/03\/18\/jeff-aronson-when-i-use-a-word-naming-biologics\/jeff_aronson_blog_pic_58\/\" rel=\"attachment wp-att-36361\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-medium wp-image-36361\" src=\"https:\/\/blogs.bmj.com\/bmj\/files\/2016\/03\/jeff_aronson_blog_pic_58-222x300.png\" alt=\"jeff_aronson_blog_pic_58\" width=\"222\" height=\"300\" srcset=\"https:\/\/blogs.bmj.com\/bmj\/files\/2016\/03\/jeff_aronson_blog_pic_58-222x300.png 222w, https:\/\/blogs.bmj.com\/bmj\/files\/2016\/03\/jeff_aronson_blog_pic_58.png 230w\" sizes=\"auto, (max-width: 222px) 100vw, 222px\" \/><\/a><\/p>\n<p><em><strong>Jeffrey Aronson<\/strong> is a clinical pharmacologist, working in the Centre for Evidence Based Medicine in Oxford&#8217;s Nuffield Department of Primary Care Health Sciences. He is also president emeritus of the British Pharmacological Society.<\/em><\/p>\n<p><em><strong>Competing interests:<\/strong>\u00a0None declared.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This week I went to Harrogate to take part in the Royal College of Physicians&#8217; (RCP\u2019s) annual conference \u201cMedicine 2016\u201d, to contribute to a session on biological medicines (biologics). It [&#8230;]<\/p>\n<p><a class=\"btn btn-secondary understrap-read-more-link\" href=\"https:\/\/blogs.bmj.com\/bmj\/2016\/03\/18\/jeff-aronson-when-i-use-a-word-naming-biologics\/\">More&#8230;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5762],"tags":[],"class_list":["post-36360","post","type-post","status-publish","format-standard","hentry","category-jeff-aronsons-words"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Jeff Aronson: When I Use a Word \u2026 Naming biologics\u2014rINNs and pINNs - The BMJ<\/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:\/\/blogs.bmj.com\/bmj\/2016\/03\/18\/jeff-aronson-when-i-use-a-word-naming-biologics\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jeff Aronson: When I Use a Word \u2026 Naming biologics\u2014rINNs and pINNs - The BMJ\" \/>\n<meta property=\"og:description\" content=\"This week I went to Harrogate to take part in the Royal College of Physicians&#8217; (RCP\u2019s) annual conference \u201cMedicine 2016\u201d, to contribute to a session on biological medicines (biologics). 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