Filgrastim

Also Known As: Filgrastim, Neupogen, Nugraf, Shilgrast, Neukine, Religrast

Filgrastim is a granulocyte colony-stimulating factor (G-CSF) analog used to stimulate the proliferation and differentiation of granulocytes. 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 only slightly different from G-CSF naturally made in humans.

It is marketed by Amgen under the brand name Neupogen, Dr. Reddy's Laboratories under the brand name Grafeel, CCL Pharmaceuticals (Pvt) Ltd under the brand name Grastin, Zenotech Laboratories Limited under the brand name Nugraf, Raichem lifesciences under the brand name Shilgrast, Intas Biopharmaceuticals under the brand name Neukine and Emcure biopharmaceuticals under the brand name Emgrast, Reliance Life Sciences under the brand name Religrast .

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

Filgrastim is used to treat neutropenia[2] (a low number of neutrophils), stimulating the bone marrow to increase production of neutrophils. Causes of neutropenia include chemotherapy and bone marrow transplantation.

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. It is produced by many companies worldwide.

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