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Gilteritinib for Treatment of Acute Myeloid Leukemia

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Gilteritinib

ASP-2215

Treatment of Acute Myeloid Leukemia

6-ethyl-3-{3-methoxy-4-[4-(4-methylpiperazin-1-yl)piperidin-1-yl]anilino}-5-[(oxan-4-yl)amino]pyrazine-2-carboxamide

C29H44N8O3, 552.71

Phase III

A FLT3/AXL inhibitor potentially for the treatment of acute myeloid leukemia.

CAS No. 1254053-43-4

Astellas Pharma  INNOVATOR
Mechanism Of Action Axl receptor tyrosine kinase inhibitors, Fms-like tyrosine kinase 3 inhibitors, Proto oncogene protein c-kit inhibitors
Who Atc Codes L01X-E (Protein kinase inhibitors)
Ephmra Codes L1H (Protein Kinase Inhibitor Antineoplastics)
Indication Cancer, Hepatic impairment

Gilteritinib(ASP-2215) is a potent FLT3/AXL inhibitor with IC50 of 0.29 nM/<1 nM respectively; shows potent antileukemic activity against AML with either or both FLT3-ITD and FLT3-D835 mutations.
IC50 value: 0.29 nM(FLT3); <1 nM(Axl kinase)
Target: FLT3/AXL inhibitor
ASP2215 inhibited the growth of MV4-11 cells, which harbor FLT3-ITD, with an IC50 value of 0.92 nM, accompanied with inhibition of pFLT3, pAKT, pSTAT5, pERK, and pS6. ASP2215 decreased tumor burden in bone marrow and prolonged the survival of mice intravenously transplanted with MV4-11 cells. ASP2215 may have potential use in treating AML.

SYNTHESIS

STR1

Patent

WO 2015119122

Compound A is 6-ethyl-3 – ({3-methoxy-4- [4- (4-methylpiperazin-1-yl) piperidin-1-yl] phenyl} amino) -5- a (tetrahydro -2H- pyran-4-ylamino) pyrazine-2-carboxamide, its chemical structure is shown below.
[Formula 1]

Gilteritinib fumarate

1254053-84-3.png

2D chemical structure of 1254053-84-3

Gilteritinib fumarate [USAN]

RN: 1254053-84-3

UNII: 5RZZ0Z1GJT

2-Pyrazinecarboxamide, 6-ethyl-3-((3-methoxy-4-(4-(4-methyl-1-piperazinyl)-1-piperidinyl)phenyl)amino)-5-((tetrahydro-2H-pyran-4-yl)amino)-, (2E)-2-butenedioate (2:1)

  • ASP-2215 hemifumarate
  • Molecular Formula, 2C29-H44-N8-O3.C4-H4-O4, Molecular Weight, 1221.5108

Astellas Inititaties Phase 3 Registration Trial of gilteritinib (ASP2215) in Relapsed or Refractory Acute Myeloid Leukemia Patients

gilteritinib-ASP2215

TOKYO, Japan I October 28, 2015 I Astellas Pharma Inc. (TSE:4503) today announced dosing of the first patient in a randomized Phase 3 registration trial of gilteritinib (ASP2215)versus salvage chemotherapy in patients with relapsed or refractory (R/R) acute myeloid leukemia (AML). The primary endpoint of the trial is overall survival (OS).

Gilteritinibis a receptor tyrosine kinase inhibitor of FLT3 and AXL, which are involved in the growth of cancer cells. Gilteritinibhas demonstrated inhibitory activity against FLT3 internal tandem duplication (ITD) as well as tyrosine kinase domain (TKD), two common types of FLT3 mutations that are seen in up to one third of patients with AML.

The gilteritinib Phase 3 trial follows a Phase 1/2 trial, which evaluated doses from 20 to 450 mg once daily. A parallel multi-dose expansion cohort was initiated based on the efficacy seen in the dose escalation phase. Preliminary data from the Phase 1/2 trial presented at the 2015 American Society of Clinical Oncology annual meeting demonstrated a 57.5 percent overall response rate and a 47.2 percent composite Complete Response (CR) rate (CR + CR with incomplete platelet recovery + CR with incomplete hematologic recovery) in 106 patients with FLT3 mutations who received 80 mg and higher doses. Median duration of response was 18 weeks across all doses and median OS was approximately 27 weeks at 80 mg and above in FLT3 mutation positive patients. Common drug-related adverse events (> 10%) observed in the study were diarrhea (13.4%), fatigue (12.4%) and AST increase (11.3%). At the 450 mg dose, two patients reached dose-limiting toxicity (grade 3 diarrhea and ALT/AST elevation) and the maximum tolerated dose was determined to be 300 mg.

On October 27, 2015, the Japanese Ministry of Health, Labor and Welfare (MHLW) announced the selection of gilteritinib as one of the first products designated for SAKIGAKE.

About the Phase 3 Study

The Phase 3 trial is an open-label, multicenter, randomized study of gilteritinib versus salvage chemotherapy in patients with Acute Myeloid Leukemia (AML). The study will enroll 369 patients with FLT3 activating mutation in bone marrow or whole blood, as determined by central lab, AML who are refractory to or have relapsed after first-line AML therapy. Subjects will be randomized in a 2:1 ratio to receive gilteritinib (120 mg) or salvage chemotherapy consisting of LoDAC (low-dose cytarabine), azacitidine, MEC (mitoxantrone, etoposide, and intermediate-dose cytarabine), or FLAG-IDA (fludarabine, cytarabine, and granulocyte colony-stimulating factor with idarubicin). The primary endpoint of the trial is OS. For more information about this trial go to http://www.clinicaltrials.gov, trial identifier NCT02421939.

Gilteritinib was discovered through a research collaboration with Kotobuki Pharmaceutical Co., Ltd., and Astellas has exclusive global rights to develop, manufacture and potentially commercialize gilteritinib.

About Acute Myeloid Leukemia

Acute myeloid leukemia is a cancer that impacts the blood and bone marrow and most commonly experienced in older adults. According to the//www.cancer.org/acs/groups/content/@editorial/documents/document/acspc-044552.pdf” target=”_blank” rel=”nofollow”>American Cancer Society, in 2015, there will be an estimated 20,830 new cases of AML diagnosed in the United States, and about 10,460 cases will result in death.

About SAKIGAKE

The SAKIGAKE designation system can shorten the review period in the following three approaches: 1.) Prioritized Consultation 2.) Substantial Pre-application Consultation and 3.) Prioritized Review. Also, the system will promote development with the following two approaches: 4.) Review Partner System (to be conducted by the Pharmaceuticals and Medical Devices Agency) and 5.) Substantial Post-Marketing Safety Measures.

About Astellas

Astellas Pharma Inc., based in Tokyo, Japan, is a company dedicated to improving the health of people around the world through the provision of innovative and reliable pharmaceutical products. We focus on Urology, Oncology, Immunology, Nephrology and Neuroscience as prioritized therapeutic areas while advancing new therapeutic areas and discovery research leveraging new technologies/modalities. We are also creating new value by combining internal capabilities and external expertise in the medical/healthcare business. Astellas is on the forefront of healthcare change to turn innovative science into value for patients. For more information, please visit our website at http://www.astellas.com/en.

SOURCE: Astellas Pharma

Start of the Euro 2016

////////1254053-43-4, Gilteritinib, ASP-2215, PHASE 3, ASP 2215, Astellas Pharma, Acute Myeloid Leukemia

CCc1c(nc(c(n1)C(=O)N)Nc2ccc(c(c2)OC)N3CCC(CC3)N4CCN(CC4)C)NC5CCOCC5

CCc1c(nc(c(n1)C(=O)N)Nc2ccc(c(c2)OC)N3CCC(CC3)N4CCN(CC4)C)NC5CCOCC5.CCc1c(nc(c(n1)C(=O)N)Nc2ccc(c(c2)OC)N3CCC(CC3)N4CCN(CC4)C)NC5CCOCC5.C(=C/C(=O)O)\C(=O)O


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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 PHARMACEUTICALS LTD, Research Centre as Principal Scientist, Process Research (bulk actives) at Mahape, Navi Mumbai, India. Total Industry exp 29 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 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 29 year tenure till date Aug 2016, Around 30 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, 25 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 13 lakh plus views on New Drug Approvals Blog in 212 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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