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First biosimilar filgrastims launched in Japan

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International nonproprietary name: Filgrastim

 Chemical name: N-L- Methionyl colony-stimulating factor (human genetically engineered); non-glycated protein consisted of 175 amino acids.

Chemical name: N-L- Methionyl colony-stimulating factor (human genetically engineered); non-glycated protein consisted of 175 amino acids.

Filgrastim is a granulocyte colony-stimulating factor (G-CSF) analog used to stimulate the proliferation and differentiation of granulocytes.[1] It is produced by recombinant DNA technology. The gene for human granulocyte colony-stimulating factor is inserted into the genetic material of Escherichia coli. The G-CSF then produced by E. coli is different from G-CSF naturally made in humans.

Hematopoietic growth factor. Interacting with receptors on the surface of hematopoietic cells it regulates production and release of neutrophils from the bone marrow to the peripheral blood. Dose dependant number growth of neutrophils with normal or increased functional activity is passing for 24 hours.

Filgrastim is marketed under several brand names, including Neupogen (Amgen), Imumax(Abbott Laboratories), Grafeel (Dr. Reddy’s Laboratories), Neukine (Intas Biopharmaceuticals), Emgrast (Emcure Pharmaceuticals), Religrast (Reliance Life Sciences), Zarzio (Sandoz), Nufil (Biocon) and others.

Apricus Biosciences is currently developing and testing a product under the brand nameNupen which can deliver filgrastim through the skin to improve post-chemotherapy recovery of neutrophil counts.

Filgrastim is also used to increase the number of hematopoietic stem cells in the blood before collection by leukapheresis for use in hematopoietic stem cell transplantation.Filgrastim is used to treat neutropenia,[2] stimulating the bone marrow to increase production of neutrophils. Causes of neutropenia include chemotherapy and bone marrow transplantation.

Filgrastim should not be used in patients with known hypersensitivity to E. coli-derived proteins.

The most commonly observed adverse effect is mild-to-moderate bone pain after repeated administration and local skin reactions at the site of injection.[3] Other observed adverse effects include serious allergic reactions (including a rash over the whole body, shortness of breath, wheezing, dizziness, swelling around the mouth or eyes, fast pulse, and sweating), ruptured spleen (sometimes resulting in death), alveolar hemorrhageacute respiratory distress syndrome, and hemoptysis.[3] Severe sickle cell crises, in some cases resulting in death, have been associated with the use of filgrastim in patients with sickle cell disorders.[4]

Drug interactions between filgrastim and other drugs have not been fully evaluated. Drugs which may potentiate the release of neutrophils‚ such as lithium‚ should be used with caution.

Increased hematopoietic activity of the bone marrow in response to growth factor therapy has been associated with transient positive bone imaging changes; this should be considered when interpreting bone-imaging results.[5]

Filgrastim has not been studied in pregnant women and its effects on unborn babies is unknown. If taking filgrastim while pregnant, it is possible that traces of the drug could be found in the baby’s blood. It is not known if the drug can get into human breast milk.

  1. Beveridge, R. A.; Miller, J. A.; Kales, A. N.; Binder, R. A.; Robert, N. J.; Harvey, J. H.; Windsor, K.; Gore, I. et al. (1998). “A Comparison of Efficacy of Sargramostim (Yeast-Derived RhuGM-CSF) and Filgrastim (Bacteria-Derived RhuG-CSF) in the Therapeutic Setting of Chemotherapy-Induced Myelosuppression”. Cancer Investigation 16 (6): 366–373. doi:10.3109/07357909809115775.PMID 9679526edit
  2. Crawford, J.; Glaspy, J. A.; Stoller, R. G.; Tomita, D. K.; Vincent, M. E.; McGuire, B. W.; Ozer, H. (2005). “Final Results of a Placebo-Controlled Study of Filgrastim in Small-Cell Lung Cancer: Exploration of Risk Factors for Febrile Neutropenia”. Supportive Cancer Therapy 3 (1): 36–46. doi:10.3816/SCT.2005.n.023PMID 18632435edit
  3. Neupogen “Neupogen: Patient Information Leaflet”Amgen. Retrieved 24 June 2013.
  4.  “NEUPOGEN® Patient Guide”Amgen. Retrieved 24 June 2013.
  5.  “Neupogen”. RxList. 4 June 2012. Retrieved 23 June 2013.
  • Budiono Santoso; Chris J. van Boxtel; Boxtel, Christoffel Jos van (2001). Drug benefits and risks: international textbook of clinical pharmacology. New York: Wiley. ISBN 0-471-89927-5.
  • “Neupogen information”. Retrieved 20 October 2005.


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DR ANTHONY CRASTO

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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 LIFE SCIENCES 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 PLUS year tenure till date June 2021, 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, 90 Lakh plus views on dozen plus blogs, 233 countries, 7 continents, 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 33 lakh plus views on New Drug Approvals Blog in 233 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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