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General

Biosimilars of rituximab

Last update: 10 November 2017

Rituximab is a chimeric monoclonal antibody against the protein CD20, which is primarily found on the surface of immune system B cells. Rituximab destroys B cells and is therefore used to treat diseases that are characterized by excessive number of B cells, overactive B cells or dysfunctional B cells. This includes many lymphomas, leukaemias, transplant rejection and autoimmune disorders.

FDA updates Purple Book for biologicals and biosimilars

On 21 February 2017, the US Food and Drug Administration’s (FDA) Center for Drug Evaluation and Research (CDER) announced the availability of an updated version of the ‘Purple Book’.

Biosimilars of omalizumab

Last update: 3 November 2017

Omalizumab is a recombinant DNA-derived humanized IgG1k monoclonal antibody that specifically binds to free human immunoglobulin E (IgE) in the blood and interstitial fluid and to membrane-bound form of IgE (mIgE) on the surface of mIgE-expressing B lymphocytes [1]. Unlike an ordinary anti-IgE antibody, it does not bind to IgE that is already bound by the high affinity IgE receptor (FcεRI) on the surface of mast cells, basophils, and antigen-presenting dendritic cells. The originator product Novartis’s Xolair (omalizumab) is indicated for the treatment of moderate to severe persistent asthma and chronic idiopathic urticaria despite antihistamine treatment.

Biosimilars of eculizumab

Last update: 20 October 2017

Eculizumab is a humanized monoclonal antibody that is a terminal complement inhibitor. It is used to treat people with paroxysmal nocturnal haemoglobinuria (PNH), for whom it improves quality of life but does not appear to affect the risk of death. It is also indicated for the treatment of patients with atypical haemolytic uremic syndrome (aHUS) – a disease that primarily affects kidney function – to inhibit complement-mediated thrombotic microangiopathy.

Biosimilars of epoetin alfa

Last update: 13 October 2017

Epoetin alfa is a human erythropoietin produced in cell culture using recombinant DNA technology. It stimulates erythropoiesis (increases red blood cell levels) and is used to treat anaemia, commonly associated with chronic renal failure and cancer chemotherapy.

Biosimilars of abatacept

Last update: 28 April 2017

Abatacept is a modified antibody biological drug used to treat autoimmune diseases like rheumatoid arthritis, by interfering with the function of particular cells (T-cells) in the immune system. This action modifies the inflammation and immune activity which cause the symptoms of rheumatoid arthritis.

Biosimilars of certolizumab pegol

Certolizumab pegol is a monoclonal antibody directed against tumour necrosis factor-alfa (TNF-α). More precisely, it is a PEGylated Fab’ fragment of a humanized TNF inhibitor monoclonal antibody. It is indicated for the treatment of Crohn’s disease, rheumatoid arthritis, psoriatic arthritis and ankylosing spondylitis.

Biosimilars of infliximab

Last update: 10 November 2017

Infliximab is a chimeric monoclonal antibody against tumour necrosis factor alpha (TNF-α). It is used to treat autoimmune diseases, such as ankylosing spondylitis, Crohn’s disease, psoriasis, psoriatic arthritis, rheumatoid arthritis, and ulcerative colitis.

FDA Commissioner discusses challenges and opportunities for biosimilars

The US Food and Drug Administration (FDA) approved its first biosimilar for cancer drug Avastin (bevacizumab) in September 2017 [1]. In light of this momentous event, FDA Commissioner Dr Scott Gottlieb spoke to medical reporter Laurie MicGinely, at The Washington Post’s Chasing Cancer Summit, about the challenges faced by biosimilars and the future opportunities in the US.

Biocon withdraws EU applications for trastuzumab and pegfilgrastim biosimilars

India-based biologicals specialist Biocon announced on 16 August 2017 that it was withdrawing its European Union (EU) marketing applications for its trastuzumab and pegfilgrastim biosimilars.