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Efmoroctocog alfa, エフモロクトコグアルファ;

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(Heavy chain)
ATRRYYLGAV ELSWDYMQSD LGELPVDARF PPRVPKSFPF NTSVVYKKTL FVEFTDHLFN
IAKPRPPWMG LLGPTIQAEV YDTVVITLKN MASHPVSLHA VGVSYWKASE GAEYDDQTSQ
REKEDDKVFP GGSHTYVWQV LKENGPMASD PLCLTYSYLS HVDLVKDLNS GLIGALLVCR
EGSLAKEKTQ TLHKFILLFA VFDEGKSWHS ETKNSLMQDR DAASARAWPK MHTVNGYVNR
SLPGLIGCHR KSVYWHVIGM GTTPEVHSIF LEGHTFLVRN HRQASLEISP ITFLTAQTLL
MDLGQFLLFC HISSHQHDGM EAYVKVDSCP EEPQLRMKNN EEAEDYDDDL TDSEMDVVRF
DDDNSPSFIQ IRSVAKKHPK TWVHYIAAEE EDWDYAPLVL APDDRSYKSQ YLNNGPQRIG
RKYKKVRFMA YTDETFKTRE AIQHESGILG PLLYGEVGDT LLIIFKNQAS RPYNIYPHGI
TDVRPLYSRR LPKGVKHLKD FPILPGEIFK YKWTVTVEDG PTKSDPRCLT RYYSSFVNME
RDLASGLIGP LLICYKESVD QRGNQIMSDK RNVILFSVFD ENRSWYLTEN IQRFLPNPAG
VQLEDPEFQA SNIMHSINGY VFDSLQLSVC LHEVAYWYIL SIGAQTDFLS VFFSGYTFKH
KMVYEDTLTL FPFSGETVFM SMENPGLWIL GCHNSDFRNR GMTALLKVSS CDKNTGDYYE
DSYEDISAYL LSKNNAIEPR SFSQNPPVLK RHQREITRTT LQSDQEEIDY DDTISVEMKK
EDFDIYDEDE NQSPRSFQKK TRHYFIAAVE RLWDYGMSSS PHVLRNRAQS GSVPQFKKVV
FQEFTDGSFT QPLYRGELNE HLGLLGPYIR AEVEDNIMVT FRNQASRPYS FYSSLISYEE
DQRQGAEPRK NFVKPNETKT YFWKVQHHMA PTKDEFDCKA WAYFSDVDLE KDVHSGLIGP
LLVCHTNTLN PAHGRQVTVQ EFALFFTIFD ETKSWYFTEN MERNCRAPCN IQMEDPTFKE
NYRFHAINGY IMDTLPGLVM AQDQRIRWYL LSMGSNENIH SIHFSGHVFT VRKKEEYKMA
LYNLYPGVFE TVEMLPSKAG IWRVECLIGE HLHAGMSTLF LVYSNKCQTP LGMASGHIRD
FQITASGQYG QWAPKLARLH YSGSINAWST KEPFSWIKVD LLAPMIIHGI KTQGARQKFS
SLYISQFIIM YSLDGKKWQT YRGNSTGTLM VFFGNVDSSG IKHNIFNPPI IARYIRLHPT
HYSIRSTLRM ELMGCDLNSC SMPLGMESKA ISDAQITASS YFTNMFATWS PSKARLHLQG
RSNAWRPQVN NPKEWLQVDF QKTMKVTGVT TQGVKSLLTS MYVKEFLISS SQDGHQWTLF
FQNGKVKVFQ GNQDSFTPVV NSLDPPLLTR YLRIHPQSWV HQIALRMEVL GCEAQDLYDK
THTCPPCPAP ELLGGPSVFL FPPKPKDTLM ISRTPEVTCV VVDVSHEDPE VKFNWYVDGV
EVHNAKTKPR EEQYNSTYRV VSVLTVLHQD WLNGKEYKCK VSNKALPAPI EKTISKAKGQ
PREPQVYTLP PSRDELTKNQ VSLTCLVKGF YPSDIAVEWE SNGQPENNYK TTPPVLDSDG
SFFLYSKLTV DKSRWQQGNV FSCSVMHEAL HNHYTQKSLS LSPG
(Lignt chain)
DKTHTCPPCP APELLGGPSV FLFPPKPKDT LMISRTPEVT CVVVDVSHED PEVKFNWYVD
GVEVHNAKTK PREEQYNSTY RVVSVLTVLH QDWLNGKEYK CKVSNKALPA PIEKTISKAK
GQPREPQVYT LPPSRDELTK NQVSLTCLVK GFYPSDIAVE WESNGQPENN YKTTPPVLDS
DGSFFLYSKL TVDKSRWQQG NVFSCSVMHE ALHNHYTQKS LSLSPG
(disulfide bridges: H153-H179, H248-H329, H528-H554, H630-H711, H938-H964, H1005-H1009, H1127-H1275, H1280-H1432, H1444-L6, H1447-L9, H1479-H1539, H1585-H1643, L41-L101, L147-L205)

Efmoroctocog alfa

Protein chemical formulaC9736H14863N2591O2855S78

Protein average weight220000.0 Da (Apparent, B-domain deleted)

Peptide

CAS: 1270012-79-7

エフモロクトコグアルファ;

2015/11/19 ema APPROVED elocta

Image result for Efmoroctocog alfa

Image result for Efmoroctocog alfa

Efmoroctocog alfa is a fully recombinant factor VIII-Fc fusion protein (rFVIIIFc) with an extended half-life compared with conventional factor VIII (FVIII) preparations, including recombinant FVIII (rFVIII) products such as Moroctocog alfa[1]. It is an antihemorrhagic agent used in replacement therapy for patients with haemophilia A (congenital factor VIII deficiency). It is suitable for all age groups. Haemophilia A is a rare bleeding disorder associated with a slow clotting process caused by the deficiency of factor VIII. Patients with this disorder are more susceptible to recurrent bleeding episodes and excessive bleeding following minor traumatic injuries or surgical procedures [1]. Prophylactic treatment may dramatically improve the management of severe haemophilia A in the future by reducing joint bleeding and other hemorrhages that cause chronic pain and disability to patients [12]. Prophylaxis has also shown to reduce the formation of neutralizing anti-FVIII antibodies, or inhibitors [2].

Factor VIII is a blood coagulant factor involved in the intrinsic pathway to form fibrin, or a blood clot. Efmoroctocog alfa is a first commercially available rFVIII-Fc fusion protein (rFVIIIFc) where the conjugated molecule of rFVIII to polyethylene glycol is covalently fused to the dimeric Fc domain of human immunoglobulin G1, a long-lived plasma protein [FDA Label]. The B domain of factor VIII is deleted. In animal models of haemophilia, efmoroctocog alfa demonstrated an approximately two-fold longer t½ than commercially available rFVIII products [1].

Other drug products with similar structure and function to Efmoroctocog alfa include Moroctocog alfa, which is produced by recombinant DNA technology and is identical in sequence to endogenously produced Factor VIII, but does not contain the B-domain, which has no known biological function, and Antihemophilic factor human, which is purified endogenous Factor VIII from human pooled blood and contains both A- and B-subunits.

It is commonly marketed as Elocta or Eloctate for intravenous injection. To date, no confirmed inhibitory autoantibodies were seen in previously treated patients included in clinical studies and treatment-emergent adverse events were generally consistent with those expected in the patient populations being studied [1]. The extended half-life of efmoroctocog alfa provides several clinical benefits for patients, including reduced frequency of injections required and improved adherence to prophylaxis [1].

Haemophilia A is an inherited sex-linked disorder of blood coagulation in which affected males (very rarely females) do not produce functional coagulation FVIII in sufficient quantities to achieve satisfactory haemostasis. The incidence of congenital haemophilia A is approximately 1 in 10,000 births. Disease severity is classified according to the level of FVIII activity (% of normal) as mild (>5% to <40%), moderate (1% to 5%) or severe (<1%). This deficiency in FVIII predisposes patients with haemophilia A to recurrent bleeding episodes in joints, muscles or internal organs, either spontaneously or as a result of accidental or surgical trauma. Without adequate treatment these repeated haemarthroses and haematomas lead to long-term sequelae with severe disability. Other less frequent, but more severe bleeding sites, are the central nervous system, the urinary or gastrointestinal tract, eyes and the retro-peritoneum. Patients with haemophilia A are at high risk of developing major and life-threatening bleeds after surgical procedures, even after minor procedures such as tooth extraction. The development of cryoprecipitate and subsequently FVIII concentrates, obtained by fractionation of human plasma, provided replacement FVIII and greatly improved clinical management and life expectancy of patients with haemophilia A. Current treatment approaches focus on either prophylactic or on demand factor replacement therapy with plasma-derived FVIII or recombinant FVIII products. In the short term, prophylaxis can prevent spontaneous bleeding and in the long term, prophylaxis can prevent bleeding into joints that will eventually lead to debilitating arthropathy. Prophylaxis with FVIII concentrates is currently the preferred treatment regimen for patients with severe haemophilia A, especially in very young patients. The majority of patients receiving prophylaxis are treated 3-times weekly or every other day at a dose of 25–40 international units (IU)/kg (or 15–25 IU/kg in an intermediate dose regimen), although an escalating dose regimen is also used. However, on-demand treatment is still the predominant replacement approach in many countries. The most serious complication in the treatment of haemophilia A is the development of neutralising antibodies (inhibitors) against FVIII, rendering the patient resistant to replacement therapy and thereby increasing the risk of unmanageable bleeding, particularly arthropathy, and disability.

ELOCTA (efmoroctocog alfa) is a recombinant human coagulation factor VIII Fc fusion protein (rFVIIIFc) consisting of B-domain deleted FVIII covalently attached to the Fc domain of human immunoglobulin G1 (IgG1) thus aiming at prolongation of plasma half-life. It has been developed as a long-acting version of recombinant FVIII (rFVIII) for the control and prevention of bleeding episodes, routine prophylaxis, and perioperative management (surgical prophylaxis) in individuals with hemophilia A. ELOCTA is formulated as powder for intravenous administration in a single-use vial. Each single-use vial contains nominally 250, 500, 750, 1000, 1500, 2000, or 3000 International Units (IU) of rFVIIIFc for reconstitution with a solvent (Sterile Water for Injections), which is provided in a pre-filled syringe. In 2013, national scientific advice was sought from the United Kingdom Medicines and Healthcare Products Regulatory Agency (MHRA), Swedish Medicinal Products Agency, and German Paul-Ehrlich-Institute. No substantial deviations from the advices provided could be identified. On 2 April 2014, the Paediatric Committee (PDCO) of the European Medicines Agency adopted a favourable opinion on the modification of an agreed paediatric investigation plan (PIP) (P/0077/2014) and a partially completed compliance procedure was finalised on 16-18 July 2014 (EMEA-C1-001114-PIP01-10-MO2). Completed studies, Study 997HA301 and Study 8HA02PED, and the initiation of Study 8HA01EXT are considered compliant with EMA Decision P/0077/2014.

The active substance of ELOCTA, efmoroctocog alfa, is a recombinant human coagulation factor VIII, Fc fusion protein (rFVIIIFc) comprising B-domain deleted (BDD) human FVIII covalently linked to the Fc domain of human immunoglobulin G1(IgG1). It has been developed as a long-acting version of recombinant FVIII (rFVIII). ELOCTA is formulated as a sterile, non-pyrogenic, preservative-free, lyophilized, white to off-white powder to cake for intravenous administration in a single-use vial. Each single-use vial contains nominally 250, 500, 750, 1000, 1500, 2000, or 3000 International Units (IU) of rFVIIIFc for reconstitution with liquid diluent (Sterile Water for Injection), which is provided in a pre-filled syringe. The finished medicinal product consists of a package containing a rFVIIIFc drug product vial, a pre-filled diluent (SWFI) syringe and medical devices (a plunger rod, a vial adapter (used as a transfer device during reconstitution), an infusion set, alcohol swabs, plasters and gauze pad for intravenous administration).

Structure The active substance of Elocta, efmoroctocog alfa, is a recombinant human coagulation factor VIII, Fc fusion protein (rFVIIIFc) comprised of a single molecule of B-domain deleted human Factor VIII (BDD FVIII) fused to the dimeric Fc region of human IgG1 with no intervening linker sequence.

The rFVIIIFc protein has a molecular weight of approximately 220 kDa. rFVIIIFc is synthesized as 2 polypeptide chains, one chain consisting of BDD FVIII fused to the N-terminal of human IgG1 Fc domain the other chain consisting of the same Fc region alone. The two subunits of rFVIIIFc, FVIIIFc single chain and Fc single chain, are associated through disulfide bonds in the hinge region of Fc as well as through extensive noncovalent interactions between the Fc fragments.

Characterisation rFVIIIFc was extensively characterised by physicochemical methods in accordance with guideline ICH Q6B. The structural characterisation and the physicochemical properties confirmed the expected properties for a recombinant FVIIIFc product. In general, the characterization performed was considered appropriate for this complex fusion molecule. The panel of tests was comprehensive and covered most of its structural and functional attributes. The comparability between representative batches from development and commercial manufacture (including process validation batches) as well as with rFVIIIFc reference materials was demonstrated. The biological activity was analysed by the FVIII one stage clotting assay (activated partial thromboplastin time (aPTT)), the FVIII chromogenic assay and the FcRn binding assay. Additional in vitro functional tests were performed comprising the binding to von Willebrand factor and the generation of Factor Xa. Since it is anticipated that the potency of modified products measured by the one stage clotting assay (aPTT) may be dependent on the choice of the aPTT reagent, the ISTH recommends for all new FVIII products to perform a study including assay variations (different aPTT reagents) for FVIII testing when using the coagulation assay. Respective studies were provided by the Applicant in Module 5 (no significant dependence on the aPTT reagent was observed). REF 3

AUSTRALIA REF 4

Submission details Type of submission: New biological entity Decision: Approved Date of decision: 18 June 2014 Active ingredient: Efmoroctocog alfa (rhu2)3

Product name: Eloctate Sponsor’s name and address: Biogen Idec Australia Pty Ltd Suite 1, Level 5 123 Epping Rd North Ryde, NSW 2113 Dose form: Powder for injection and diluent Strengths: 250 international units (IU), 500 IU, 750 IU, 1000 IU, 1500 IU, 2000 IU and 3000 IU Containers: Type I glass vial (powder) and pre-filled syringe (diluent) Pack size: Single Approved therapeutic use: Eloctate is a long-acting antihaemophilic factor (recombinant) indicated in adults and children ( ≥ 12 years) with haemophilia A (congenital factor VIII deficiency) for: · control and prevention of bleeding episodes · routine prophylaxis to prevent or reduce the frequency of bleeding episodes · perioperative management (surgical prophylaxis) Eloctate does not contain von Willebrand factor, and therefore is not indicated in patients with von Willebrand’s disease. Route of administration: Intravenous (IV) infusion Dosage: Refer to the Product Information (PI; Attachment 1) ARTG numbers: 210521 (250 IU), 210519 (500 IU), 210523 (750 IU), 210525 (1000 IU), 210522 (1500 IU), 210524 (2000 IU), 210520 (3000 IU). 2 recombinant human 3 The ingredient name at the time of submission and registration was Efraloctocog alfa, The name was subsequently changed on 20 February 2015 to harmonise to the International Non-proprietary Name (INN) Efmoroctocog alfa. The AusPAR document has been amended by replacing the previous name efraloctocog alfa with approved INN efmoroctocog alfa.

  1. Frampton JE: Efmoroctocog Alfa: A Review in Haemophilia A. Drugs. 2016 Sep;76(13):1281-1291. doi: 10.1007/s40265-016-0622-z. [PubMed:27487799]
  2. Tiede A: Half-life extended factor VIII for the treatment of hemophilia A. J Thromb Haemost. 2015 Jun;13 Suppl 1:S176-9. doi: 10.1111/jth.12929. [PubMed:26149020]
  3. http://www.ema.europa.eu/docs/en_GB/document_library/EPAR_-_Public_assessment_report/human/003964/WC500198644.pdf
  4. https://www.tga.gov.au/sites/default/files/auspar-efmoroctocog-alfa-rhu-150317.pdf
  5. http://www.who.int/medicines/publications/druginformation/innlists/RL73_pre.pdf

///////////Efmoroctocog alfa, Peptide, ema 2015


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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 AFRICURE PHARMA as ADVISOR, earlier assignment was with GLENMARK LIFE SCIENCES LTD, as CONSUlTANT, Retired from GLENMARK in Jan2022 Research Centre as Principal Scientist, Process Research (bulk actives) at Mahape, Navi Mumbai, India. Total Industry exp 32 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, 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 32 PLUS year tenure till date Feb 2023, 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 100 million plus hits on Google, 2.5 lakh plus connections on all networking sites, 100 Lakh plus views on dozen plus blogs, 227 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 38 lakh plus views on New Drug Approvals Blog in 227 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 He has total of 32 International and Indian awards

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