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DR ANTHONY MELVIN CRASTO Ph.D

DR ANTHONY MELVIN CRASTO Ph.D

DR ANTHONY MELVIN CRASTO, Born in Mumbai in 1964 and graduated from Mumbai University, Completed his Ph.D from ICT, 1991,Matunga, Mumbai, India, in Organic Chemistry, The thesis topic was Synthesis of Novel Pyrethroid Analogues, Currently he is working with GLENMARK PHARMACEUTICALS LTD, Research Centre as Principal Scientist, Process Research (bulk actives) at Mahape, Navi Mumbai, India. Total Industry exp 30 plus yrs, Prior to joining Glenmark, he has worked with major multinationals like Hoechst Marion Roussel, now Sanofi, Searle India Ltd, now RPG lifesciences, etc. He has worked with notable scientists like Dr K Nagarajan, Dr Ralph Stapel, Prof S Seshadri, Dr T.V. Radhakrishnan and Dr B. K. Kulkarni, etc, He did custom synthesis for major multinationals in his career like BASF, Novartis, Sanofi, etc., He has worked in Discovery, Natural products, Bulk drugs, Generics, Intermediates, Fine chemicals, Neutraceuticals, GMP, Scaleups, etc, he is now helping millions, has 9 million plus hits on Google on all Organic chemistry websites. His friends call him Open superstar worlddrugtracker. His New Drug Approvals, Green Chemistry International, All about drugs, Eurekamoments, Organic spectroscopy international, etc in organic chemistry are some most read blogs He has hands on experience in initiation and developing novel routes for drug molecules and implementation them on commercial scale over a 30 year tenure till date Dec 2017, Around 35 plus products in his career. He has good knowledge of IPM, GMP, Regulatory aspects, he has several International patents published worldwide . He has good proficiency in Technology transfer, Spectroscopy, Stereochemistry, Synthesis, Polymorphism etc., He suffered a paralytic stroke/ Acute Transverse mylitis in Dec 2007 and is 90 %Paralysed, He is bound to a wheelchair, this seems to have injected feul in him to help chemists all around the world, he is more active than before and is pushing boundaries, He has 9 million plus hits on Google, 2.5 lakh plus connections on all networking sites, 50 Lakh plus views on dozen plus blogs, He makes himself available to all, contact him on +91 9323115463, email amcrasto@gmail.com, Twitter, @amcrasto , He lives and will die for his family, 90% paralysis cannot kill his soul., Notably he has 19 lakh plus views on New Drug Approvals Blog in 216 countries......https://newdrugapprovals.wordpress.com/ , He appreciates the help he gets from one and all, Friends, Family, Glenmark, Readers, Wellwishers, Doctors, Drug authorities, His Contacts, Physiotherapist, etc

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GSK and Genmab seek FDA approval for ofatumumab combination therapy for CLL first-line treatment


GlaxoSmithKline (GSK) and Genmab have submitted a supplemental Biologics License Application (sBLA) to the US Food and Drug Administration (FDA) seeking the use of Arzerra (ofatumumab) in combination with an alkylator-based therapy in patients with chronic lymphocytic leukaemia (CLL) who have not received prior treatment.

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GSK and Genmab seek FDA approval for ofatumumab combination therapy for CLL first-line treatment

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GSK and Genmab seek alternative approval for leukaemia drug Arzerra


Arzerra

GlaxoSmithKline and Genmab A/S have announced the submission of leukaemia drug Arzerra to the European Medicines Agency (EMA) for a variation in marketing authorisation.

The companies are seeking authorisation for the drug to be used in combination with an alkylator-based therapy for treatment of Chronic Lymphocytic Leukemia (CLL) patients who have not received prior treatment and are inappropriate for fludarabine-based therapy.

READ ALL AT

http://www.pharmaceutical-technology.com/news/newsgsk-and-genmab-seek-alternative-approval-leukaemia-drug-arzerra?WT.mc_id=DN_News

Ofatumumab(trade name Arzerra, also known as HuMax-CD20) is a human monoclonal antibody (for the CD20 protein) which appears to inhibit early-stage B lymphocyte activation. It is FDA approved for treating chronic lymphocytic leukemia that is refractory to fludarabine and alemtuzumab (Campath) and has also shown potential in treating Follicular non-Hodgkin’s lymphoma, Diffuse large B cell lymphoma, rheumatoid arthritis and relapsing remitting multiple sclerosis. Ofatumumab has also received conditional approval in Europe for the treatment of refractory chronic lymphocytic leukemia. This makes ofatumumab the first marketing application for an antibody produced by Genmab, as well as the first human monoclonal antibody which targets the CD20 molecule that will be available for patients with refractory CLL.

Chronic lymphocytic leukemia (CLL) is a slowly progressing cancer of the blood and bone marrow. Arzerra (ofatumumab) has been approved by the FDA for treating CLL.

Patients with CLL whose cancer is no longer being controlled by other forms of chemotherapy can be prescribed Arzerra.

People older than fifty are mainly affected by CLL. A group of white blood cells known as B-cells that are part of the body’s immune system is the source of CLL. Every year, about ¼ of people diagnosed with CLL die from the disease.


Arzerra is an anti-CD20 monoclonal antibody that targets a membrane-proximal (which means close to the cell surface), small loop epitope, which is a portion of a molecule to which an antibody binds, on the CD20 molecule on B-cells. This epitope isn’t similar to binding sites that are targeted by other CD20 antibodies that are currently available. The CD20 molecule is highly expressed in most B-cell malignancies, making it a key target in CLL therapy.

MECHANISM OF ACTION:

Binding specifically to both the small and large extracellular loops of the CD20 molecule, Arzerra is an anti-CD20 monoclonal antibody. The CD20 molecule is expressed on normal B lymphocytes (pre-B- to mature B-lymphocyte) and on B-cell CLL. The CD20 molecule isn’t internalized following antibody binding and it isn’t shed from the cell surface. The Fc domain of ofatumumab mediates immune effector functions to result in B-cell lysis in vitro, while the Fab domain binds to the CD20 molecule. Complement-dependent cytotoxicity and antibody-dependent, cell-mediated cytotoxicity has been suggested as the possible mechanisms of cell lysis.

 

Products receive accelerated approval based on a surrogate endpoint, such as a reduction in the size of the tumor or decrease in the number of cancerous white cells or in an enlarged spleen or lymph nodes. These indirect measures for clinical outcomes are considered reasonably likely to predict that the drug will allow patients to live with fewer side effects of a disease or to live longer. Arzerra was approved under the FDA’s accelerated approval process, which allows earlier approval of drugs that meet unmet medical needs.


To confirm that the addition of Arzerra to standard chemotherapy delays the progression of the disease, the manufacturer of this medication is currently conducting a clinical trial in CLL patients. This is because the accelerated approval process requires further study of the drug.

FDA grants Arzerra ‘breakthrough’ designation for use with chlorambucil in CLL


The FDA today granted “breakthrough therapy” designation to ofatumumab for treatment of patients with chronic lymphocytic leukemia.

The designation applies to use of ofatumumab (Arzerra, GlaxoSmithKline) in combination with chlorambucil in patients with untreated CLL who unsuitable for fludarabine-based therapy.

Ofatumumab is a human monoclonal antibody that targets an epitope on the CD20 molecule encompassing parts of the small and large extracellular loops.

read all at

http://www.healio.com/hematology-oncology/hematologic-malignancies/news/online/%7b7ad941c8-330f-45db-a359-381088d89808%7d/fda-grants-arzerra-breakthrough-designation-for-use-with-chlorambucil-in-cll

also read my post on newdrugapprovals

https://newdrugapprovals.wordpress.com/2013/07/08/gsk-tests-ofatumumab-in-rare-skin-disorder/

Ofatumumab (trade name Arzerra, also known as HuMax-CD20) is a human monoclonal antibody (for the CD20 protein) which appears to inhibit early-stage B lymphocyte activation. It is FDA approved for treating chronic lymphocytic leukemia that is refractory to fludarabine and alemtuzumab (Campath) and has also shown potential in treating Follicular non-Hodgkin’s lymphomaDiffuse large B cell lymphomarheumatoid arthritis and relapsing remitting multiple sclerosis. Ofatumumab has also received conditional approval in Europe for the treatment of refractory chronic lymphocytic leukemia. This makes ofatumumab the first marketing application for an antibody produced by Genmab, as well as the first human monoclonal antibody which targets the CD20 molecule that will be available for patients with refractory CLL.Designated an orphan drug by FDA for the treatment of B-CLL

GSK tests ofatumumab in rare skin disorder


Ofatumumab

GlaxoSmithKline is to start a new Phase III study of ofatumumab as a treatment for pemphigus vulgaris, a rare autoimmune disorder of the skin, according to partner Genmab. The Danish biotech and the drug major are long-term partners on ofatumumab which is already marketed, as Arzerra, for chronic lymphocytic leukaemia.

http://www.pharmatimes.com/Article/13-07-04/GSK_tests_ofatumumab_in_rare_skin_disorder.aspx

Ofatumumab(trade name Arzerra, also known as HuMax-CD20) is a human monoclonal antibody (for the CD20 protein) which appears to inhibit early-stage B lymphocyte activation. It is FDA approved for treating chronic lymphocytic leukemia that is refractory to fludarabine and alemtuzumab (Campath) and has also shown potential in treating Follicular non-Hodgkin’s lymphoma, Diffuse large B cell lymphoma, rheumatoid arthritis and relapsing remitting multiple sclerosis. Ofatumumab has also received conditional approval in Europe for the treatment of refractory chronic lymphocytic leukemia. This makes ofatumumab the first marketing application for an antibody produced by Genmab, as well as the first human monoclonal antibody which targets the CD20 molecule that will be available for patients with refractory CLL.

 

 

MHLW Japan, GlaxoSmithKline and Genmab announced the approval of Arzerra (ofatumumab) by the MHLW for use in patients with relapsed/refractory CD20-positive chronic lymphocytic leukaemia.


mar 26, 2013

GlaxoSmithKline and Genmab  announced the approval of Arzerra (ofatumumab) by the MHLW for use in patients with relapsed/refractory CD20-positive chronic lymphocytic leukaemia.

The thumbs-up triggers a milestone payment of 20 million Danish kroner to Genmab.

Ofatumumab(trade name Arzerra, also known as HuMax-CD20) is a human monoclonal antibody (for the CD20 protein) which appears to inhibit early-stage B lymphocyte activation. It is FDA approved for treating chronic lymphocytic leukemia that is refractory to fludarabine and alemtuzumab (Campath) and has also shown potential in treating Follicular non-Hodgkin’s lymphoma, Diffuse large B cell lymphoma, rheumatoid arthritis and relapsing remitting multiple sclerosis. Ofatumumab has also received conditional approval in Europe for the treatment of refractory chronic lymphocytic leukemia. This makes ofatumumab the first marketing application for an antibody produced by Genmab, as well as the first human monoclonal antibody which targets the CD20 molecule that will be available for patients with refractory CLL.

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