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Efgartigimod alfa-fcab

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DKTHTCPPCP APELLGGPSV FLFPPKPKDT LYITREPEVT CVVVDVSHED PEVKFNWYVD
GVEVHNAKTK PREEQYNSTY RVVSVLTVLH QDWLNGKEYK CKVSNKALPA PIEKTISKAK
GQPREPQVYT LPPSRDELTK NQVSLTCLVK GFYPSDIAVE WESNGQPENN YKTTPPVLDS
DGSFFLYSKL TVDKSRWQQG NVFSCSVMHE ALKFHYTQKS LSLSPGK
(Disulfide bridge: 6-6′, 9-9′, 41-101, 147-205, 41′-101′, 147′-205′)

Efgartigimod alfa-fcab

FormulaC2310H3554N602O692S14
CAS1821402-21-4
Mol weight51279.464

US FDA APPROVED 12/17/2021, To treat generalized myasthenia gravis
Press ReleaseVyvgart BLA 761195

エフガルチギモドアルファ (遺伝子組換え)

PEPTIDE

Treatment of IgG-driven autoimmune diseases

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https://www.fda.gov/news-events/press-announcements/fda-approves-new-treatment-myasthenia-gravis

FDA Approves New Treatment for Myasthenia Gravis

Approval is the First of a New Class of Medication for this Rare, Chronic, Autoimmune, Neuromuscular DiseaseFor Immediate Release:December 17, 2021

The U.S. Food and Drug Administration today approved Vyvgart (efgartigimod) for the treatment of generalized myasthenia gravis (gMG) in adults who test positive for the anti-acetylcholine receptor (AChR) antibody.

Myasthenia gravis is a chronic autoimmune, neuromuscular disease that causes weakness in the skeletal muscles (also called voluntary muscles) that worsens after periods of activity and improves after periods of rest. Myasthenia gravis affects voluntary muscles, especially those that are responsible for controlling the eyes, face, mouth, throat, and limbs. In myasthenia gravis, the immune system produces AChR antibodies that interfere with communication between nerves and muscles, resulting in weakness. Severe attacks of weakness can cause breathing and swallowing problems that can be life-threatening.

“There are significant unmet medical needs for people living with myasthenia gravis, as with many other rare diseases,” said Billy Dunn, M.D., director of the Office of Neuroscience in the FDA’s Center for Drug Evaluation and Research. “Today’s approval is an important step in providing a novel therapy option for patients and underscores the agency’s commitment to help make new treatment options available for people living with rare diseases.”

Vyvgart is the first approval of a new class of medication. It is an antibody fragment that binds to the neonatal Fc receptor (FcRn), preventing FcRn from recycling immunoglobulin G (IgG) back into the blood. The medication causes a reduction in overall levels of IgG, including the abnormal AChR antibodies that are present in myasthenia gravis.

The safety and efficacy of Vyvgart were evaluated in a 26-week clinical study of 167 patients with myasthenia gravis who were randomized to receive either Vyvgart or placebo. The study showed that more patients with myasthenia gravis with antibodies responded to treatment during the first cycle of Vyvgart (68%) compared to those who received placebo (30%) on a measure that assesses the impact of myasthenia gravis on daily function. More patients receiving Vyvgart also demonstrated response on a measure of muscle weakness compared to placebo.

The most common side effects associated with the use of Vyvgart include respiratory tract infections, headache, and urinary tract infections. As Vyvgart causes a reduction in IgG levels, the risk of infections may increase. Hypersensitivity reactions such as eyelid swelling, shortness of breath, and rash have occurred. If a hypersensitivity reaction occurs, discontinue the infusion and institute appropriate therapy. Patients using Vyvgart should monitor for signs and symptoms of infections during treatment. Health care professionals should administer appropriate treatment and consider delaying administration of Vyvgart to patients with an active infection until the infection is resolved.

The FDA granted this application Fast Track and Orphan Drug designations. The FDA granted the approval of Vyvgart to argenx BV.

///////////efgartigimod alfa-fcab, Vyvgart, FDA 2021,APPROVALS 2021, myasthenia gravis, argenx BV, Fast Track,  Orphan Drug, PEPTIDE,

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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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