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DR ANTHONY MELVIN CRASTO Ph.D ( ICT, Mumbai) , INDIA 29Yrs Exp. in the feld of Organic Chemistry,Working for GLENMARK PHARMA at Navi Mumbai, INDIA. Serving chemists around the world. Helping them with websites on Chemistry.Million hits on google, NO ADVERTISEMENTS , ACADEMIC , NON COMMERCIAL SITE, world acclamation from industry, academia, drug authorities for websites, blogs and educational contribution, 9323115463, Skype amcrasto64 View Anthony Melvin Crasto Ph.D's profile on LinkedIn Anthony Melvin Crasto Dr.

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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 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 year tenure till date Dec 2017, 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, 50 Lakh plus views on dozen plus blogs, He makes himself available to all, contact him on +91 9323115463, email, Twitter, @amcrasto , He lives and will die for his family, 90% paralysis cannot kill his soul., Notably he has 19 lakh plus views on New Drug Approvals Blog in 216 countries...... , 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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PF-04965842, >=98% (HPLC).png


2D chemical structure of 1622902-68-4



CAS Number 1622902-68-4, Empirical Formula  C14H21N5O2S, Molecular Weight 323.41



1-Propanesulfonamide, N-(cis-3-(methyl-7H-pyrrolo(2,3-d)pyrimidin-4-ylamino)cyclobutyl)-


PHASE 3, for the potential oral treatment of moderate-to-severe atopic dermatitis (AD)

Jak1 tyrosine kinase inhibitor


In February 2018, the FDA granted Breakthrough Therapy designation for the treatment of patients with moderate-to-severe AD


In December 2017, a randomized, double-blind, placebo-controlled, parallel-group, phase III trial (NCT03349060; JADE Mono-1; JADE; B7451012; 2017-003651-29) of PF-04965842 began in patients aged 12 years and older (expected n = 375) with moderate-to-severe AD


Pub. No.: WO/2014/128591 International Application No.: PCT/IB2014/058889
Publication Date: 28.08.2014 International Filing Date: 11.02.2014

EXPIRY  Roughly 2034

form powder
color white to beige
solubility DMSO: 10 mg/mL, clear
storage temp. room temp
    Biochem/physiol Actions
    • PF-04965842 is a Janus Kinase (JAK) inhibitor selective for JAK1 with an IC50value of 29 nM for JAK1 compared to 803 nM for JAK2, >10000 nM for JAK3 and 1250 nM for Tyk2. JAKs mediate cytokine signaling, and are involved in cell proliferation and differentiation. PF-04965842 has been investigated as a possible treatment for psoriasis.
  • Originator Pfizer
  • Class Skin disorder therapies; Small molecules
  • Mechanism of Action Janus kinase 1 inhibitors

Highest Development Phases

  • Phase IIIAtopic dermatitis
  • DiscontinuedLupus vulgaris; Plaque psoriasis

Most Recent Events

  • 08 Mar 2018Phase-III clinical trials in Atopic dermatitis (In children, In adults, In adolescents) in USA (PO) (NCT03422822)
  • 14 Feb 2018PF 4965842 receives Breakthrough Therapy status for Atopic dermatitis in USA
  • 06 Feb 2018Pfizer plans the phase III JADE EXTEND trial for Atopic Dermatitis (In children, In adults, In adolescents) in March 2018 (PO) (NCT03422822)

This compound was developed by Pfizer for Kinase Phosphatase Biology research. To learn more about Sigma′s partnership with Pfizer and view other authentic, high-quality Pfizer compounds,

Image result for PF-04965842

PF-04965842 is an oral Janus Kinase 1 inhibitor being investigated for treatment of plaque psoriasis.

Protein kinases are families of enzymes that catalyze the phosphorylation of specific residues in proteins, broadly classified into tyrosine and serine/threonine kinases. Inappropriate kinase activity, arising from mutation, over-expression, or inappropriate regulation, dys-regulation or de-regulation, as well as over- or under-production of growth factors or cytokines has been i mplicated in many diseases, including but not limited to cancer, cardiovascular diseases, allergies, asthma and other respiratory diseases, autoimmune d iseases, inflammatory diseases, bone diseases, metabolic disorders, and neurological and neurodegenerative disorders such as Alzheimer’s disease. Inappropriate kinase activity triggers a variety of biological cellular responses relating to cell growth, cell differentiation , survival, apoptosis, mitogenesis, cell cycle control, and cel l mobility implicated in the aforementioned and related diseases.

Thus, protein kinases have emerged as an important class of enzymes as targets for therapeutic intervention. In particular, the JAK family of cellular protein tyrosine kinases (JAK1, JAK2, JAK3, and Tyk2) play a central role in cytoki ne signaling (Kisseleva et al., Gene, 2002, 285 , 1; Yamaoka et al. Genome Biology 2004, 5, 253)). Upon binding to their receptors, cytokines activate JAK which then phosphorylate the cytokine receptor, thereby creating docking sites for signaling molecules, notably, members of the signal transducer and activator of transcription (STAT) family that ultimately lead to gene expression. Numerous cytokines are known to activate the JAK family. These cytokines include, the IFN family (IFN-alpha, IFN-beta, IFN-omega, Limitin, IFN-gamma, IL- 10, IL- 19, IL-20, IL-22), the gp 130 family (IL-6, IL- 11, OSM, LIF, CNTF, NNT- 1//SF-3, G-CSF, CT- 1, Leptin, IL- 12 , I L-23), gamma C family (IL-2 , I L-7, TSLP, IL-9, IL- 15 , IL-21, IL-4, I L- 13), IL-3 family (IL-3 , IL-5 , GM-CSF), single chain family (EPO, GH, PRL, TPO), receptor tyrosine kinases (EGF, PDGF, CSF- 1, HGF), and G-protein coupled receptors (ATI).

There remains a need for new compounds that effectively and selectively inhibit specific JAK enzymes, and JAK1 in particular, vs. JAK2. JAK1 is a member of the Janus family of protein kinases composed of JAK1, JAK2, JAK3 and TYK2. JAK1 is expressed to various levels in all tissues. Many cytokine receptors signal through pairs of JAK kinases in the following combinations: JAK1/JAK2, JAK1/JAK3, JAK1/TYK2 , JAK2/TYK2 or JAK2/JAK2. JAK1 is the most broadly

paired JAK kinase in this context and is required for signaling by γ-common (IL-2Rγ) cytokine receptors, IL—6 receptor family, Type I, II and III receptor families and IL- 10 receptor family. Animal studies have shown that JAK1 is required for the development, function and homeostasis of the immune system. Modulation of immune activity through inhibition of JAK1 kinase activity can prove useful in the treatment of various immune disorders (Murray, P.J.

J. Immunol., 178, 2623-2629 (2007); Kisseleva, T., et al., Gene, 285 , 1-24 (2002); O’Shea, J . J., et al., Ceil , 109, (suppl .) S121-S131 (2002)) while avoiding JAK2 dependent erythropoietin (EPO) and thrombopoietin (TPO) signaling (Neubauer H., et al., Cell, 93(3), 397-409 (1998);

Parganas E., et al., Cell, 93(3), 385-95 (1998)).


Tofacitinib (1), baricitinib (2), and ruxolitinib (3)

SYNTHESIS 5+1 =6 steps

Main synthesis

Journal of Medicinal Chemistry, 61(3), 1130-1152; 2018




CN 105732637


CAS 479633-63-1,  7H-Pyrrolo[2,3-d]pyrimidine, 4-chloro-7-[(4- methylphenyl)sulfonyl]-

Image result for PF-04965842

Pfizer Receives Breakthrough Therapy Designation from FDA for PF-04965842, an oral JAK1 Inhibitor, for the Treatment of Patients with Moderate-to-Severe Atopic Dermatitis

Wednesday, February 14, 2018 8:30 am EST



Public Company Information:

“We look forward to working closely with the FDA throughout our ongoing Phase 3 development program with the hope of ultimately bringing this important new treatment option to these patients.”

NEW YORK–(BUSINESS WIRE)–Pfizer Inc. (NYSE:PFE) today announced its once-daily oral Janus kinase 1 (JAK1) inhibitor PF-04965842 received Breakthrough Therapy designation from the U.S. Food and Drug Administration (FDA) for the treatment of patients with moderate-to-severe atopic dermatitis (AD). The Phase 3 program for PF-04965842 initiated in December and is the first trial in the J AK1 A topic D ermatitis E fficacy and Safety (JADE) global development program.

“Achieving Breakthrough Therapy Designation is an important milestone not only for Pfizer but also for patients living with the often devastating impact of moderate-to-severe atopic dermatitis, their providers and caregivers,” said Michael Corbo, Chief Development Officer, Inflammation & Immunology, Pfizer Global Product Development. “We look forward to working closely with the FDA throughout our ongoing Phase 3 development program with the hope of ultimately bringing this important new treatment option to these patients.”

Breakthrough Therapy Designation was initiated as part of the Food and Drug Administration Safety and Innovation Act (FDASIA) signed in 2012. As defined by the FDA, a breakthrough therapy is a drug intended to be used alone or in combination with one or more other drugs to treat a serious or life-threatening disease or condition and preliminary clinical evidence indicates that the drug may demonstrate substantial improvement over existing therapies on one or more clinically significant endpoints, such as substantial treatment effects observed early in clinical development. If a drug is designated as a breakthrough therapy, the FDA will expedite the development and review of such drug.1

About PF-04965842 and Pfizer’s Kinase Inhibitor Leadership

PF-04965842 is an oral small molecule that selectively inhibits Janus kinase (JAK) 1. Inhibition of JAK1 is thought to modulate multiple cytokines involved in pathophysiology of AD including interleukin (IL)-4, IL-13, IL-31 and interferon gamma.

Pfizer has established a leading kinase research capability with multiple unique kinase inhibitor therapies in development. As a pioneer in JAK science, the Company is advancing several investigational programs with novel selectivity profiles, which, if successful, could potentially deliver transformative therapies for patients. Pfizer has three additional kinase inhibitors in Phase 2 development across multiple indications:

  • PF-06651600: A JAK3 inhibitor under investigation for the treatment of rheumatoid arthritis, ulcerative colitis and alopecia areata
  • PF-06700841: A tyrosine kinase 2 (TYK2)/JAK1 inhibitor under investigation for the treatment of psoriasis, ulcerative colitis and alopecia areata
  • PF-06650833: An interleukin-1 receptor-associated kinase 4 (IRAK4) inhibitor under investigation for the treatment of rheumatoid arthritis

Working together for a healthier world®

At Pfizer, we apply science and our global resources to bring therapies to people that extend and significantly improve their lives. We strive to set the standard for quality, safety and value in the discovery, development and manufacture of health care products. Our global portfolio includes medicines and vaccines as well as many of the world’s best-known consumer health care products. Every day, Pfizer colleagues work across developed and emerging markets to advance wellness, prevention, treatments and cures that challenge the most feared diseases of our time. Consistent with our responsibility as one of the world’s premier innovative biopharmaceutical companies, we collaborate with health care providers, governments and local communities to support and expand access to reliable, affordable health care around the world. For more than 150 years, we have worked to make a difference for all who rely on us. We routinely post information that may be important to investors on our website at In addition, to learn more, please visit us on and follow us on Twitter at @Pfizer and @Pfizer_NewsLinkedInYouTube and like us on Facebook at

DISCLOSURE NOTICE: The information contained in this release is as of February 14, 2018. Pfizer assumes no obligation to update forward-looking statements contained in this release as the result of new information or future events or developments.

This release contains forward-looking information about PF-04965842 and Pfizer’s ongoing investigational programs in kinase inhibitor therapies, including their potential benefits, that involves substantial risks and uncertainties that could cause actual results to differ materially from those expressed or implied by such statements. Risks and uncertainties include, among other things, the uncertainties inherent in research and development, including the ability to meet anticipated clinical trial commencement and completion dates and regulatory submission dates, as well as the possibility of unfavorable clinical trial results, including unfavorable new clinical data and additional analyses of existing data; risks associated with preliminary data; the risk that clinical trial data are subject to differing interpretations, and, even when we view data as sufficient to support the safety and/or effectiveness of a product candidate, regulatory authorities may not share our views and may require additional data or may deny approval altogether; whether regulatory authorities will be satisfied with the design of and results from our clinical studies; whether and when drug applications may be filed in any jurisdictions for any potential indication for PF-04965842 or any other investigational kinase inhibitor therapies; whether and when any such applications may be approved by regulatory authorities, which will depend on the assessment by such regulatory authorities of the benefit-risk profile suggested by the totality of the efficacy and safety information submitted, and, if approved, whether PF-04965842 or any such other investigational kinase inhibitor therapies will be commercially successful; decisions by regulatory authorities regarding labeling, safety and other matters that could affect the availability or commercial potential of PF-04965842 or any other investigational kinase inhibitor therapies; and competitive developments.

A further description of risks and uncertainties can be found in Pfizer’s Annual Report on Form 10-K for the fiscal year ended December 31, 2016 and in its subsequent reports on Form 10-Q, including in the sections thereof captioned “Risk Factors” and “Forward-Looking Information and Factors That May Affect Future Results”, as well as in its subsequent reports on Form 8-K, all of which are filed with the U.S. Securities and Exchange Commission and available at  and .

Image result for PF-04965842

# # # # #

1 Food and Drug Administration Fact Sheet Breakthrough Therapies at on January 25, 2018


CA 2899888


WO 2014128591;jsessionid=6767BBB5964A985E88C9251B6DF3182B.wapp2nB?docId=WO2014128591&recNum=233&maxRec=8235&office=&prevFilter=&sortOption=&queryString=EN_ALL%3Anmr+AND+PA%3Apfizer&tab=PCTDescription

PFIZER INC. [US/US]; 235 East 42nd Street New York, New York 10017 (US)

BROWN, Matthew Frank; (US).
FENWICK, Ashley Edward; (US).
FLANAGAN, Mark Edward; (US).
GONZALES, Andrea; (US).
JOHNSON, Timothy Allan; (US).
KAILA, Neelu; (US).
MITTON-FRY, Mark J.; (US).
STROHBACH, Joseph Walter; (US).
TENBRINK, Ruth E.; (US).
TRZUPEK, John David; (US).
UNWALLA, Rayomand Jal; (US).
VAZQUEZ, Michael L.; (US).
PARIKH, Mihir, D.; (US)



Example 2 : N-{cis-3-[Methyl(7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino]cyclobutyl}-propane- l -sulƒonamide

This compound was prepared using 1-propanesulfonyl chloride. The crude compound was purified by chromatography on silica gel eluting with a mixture of dichloromethane and methanol (93 : 7) to afford the title compound as a tan sol id (78% yield). 1NMR (400 MHz, DMSO-d6): δ 11.60 (br s, 1 H), 8.08 (s, 1 H), 7.46 (d, 1 H), 7.12 (d, 1 H), 6.61 (d, 1 H), 4.81-4.94 (m, 1 H), 3.47-3.62 (m, 1 H), 3.23 (s, 3 H), 2.87-2.96 (m, 2 H), 2.52-2.63 (m, 2 H), 2.14-2.27 (m, 2 H) 1.60- 1.73 (m, 2 H) 0.96 (t, 3 H). LC/MS (exact mass) calculated for C14H21N5O2S;

323.142, found (M + H+); 324.1.


 Journal of Medicinal Chemistry (2018), 61(3), 1130-1152.

Abstract Image

N-{cis-3-[Methyl(7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino]cyclobutyl}propane-1-sulfonamide (25)

Compound 48a·2HBr …………..was collected by filtration, washed with 2:1 EtOH/H2O (100 mL), and again dried overnight in a vacuum oven at 40 °C.
1H NMR (400 MHz, DMSO-d6): 11.64 (br s, 1H), 8.12 (s, 1 H), 7.50 (d, J = 9.4 Hz, 1H), 7.10–7.22 (m, 1H), 6.65 (dd, J= 1.8, 3.3 Hz, 1H), 4.87–4.96 (m, 1H), 3.53–3.64 (m, 1H), 3.27 (s, 3H), 2.93–2.97 (m, 2H), 2.57–2.64 (m, 2H), 2.20–2.28 (m, 2H), 1.65–1.74 (m, 2H), 0.99 (t, J = 7.4 Hz, 3H).
LC/MS m/z (M + H+) calcd for C14H22N5O2S: 324. Found: 324. Anal. Calcd for C14H21N5O2S: C, 51.99; H, 6.54; N, 21.65; O, 9.89; S, 9.91. Found: C, 52.06; H, 6.60; N, 21.48; O, 10.08; S, 9.97.

SchmiederG.DraelosZ.PariserD.BanfieldC.CoxL.HodgeM.KierasE.Parsons-RichD.MenonS.SalganikM.PageK.PeevaE. Efficacy and safety of the Janus Kinase 1 inhibitor PF-04965842 in patients with moderate to severe psoriasis: phase 2, randomized, double-blind, placebo-controlled study Br. J. Dermatol. 2017DOI: 10.1111/bjd.16004

Compound 25N-{cis-3-[Methyl(7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino]cyclobutyl}-propane-1-sulfonamide is available through MilliporeSigma (cat. no. PZ0304).


1: Schmieder GJ, Draelos ZD, Pariser DM, Banfield C, Cox L, Hodge M, Kieras E, Parsons-Rich D, Menon S, Salganik M, Page K, Peeva E. Efficacy and safety of the Janus Kinase 1 inhibitor PF-04965842 in patients with moderate to severe psoriasis: phase 2, randomized, double-blind, placebo-controlled study. Br J Dermatol. 2017 Sep 26. doi: 10.1111/bjd.16004. [Epub ahead of print] PubMed PMID: 28949012

 2 Journal of Medicinal Chemistry (2018), 61(3), 1130-1152.

/////////////////PF-04965842, PF 04965842, PF04965842, PF 4965842, Phase 3, Atopic dermatitis, PFIZER, Breakthrough Therapy Designation




LRH-1 agonism favours an immune-islet dialogue which protects against diabetes mellitus

Sreeni Labs Private Limited

Customer requested Sreeni Labs to make BL001 first on  few mg scale. Sreeni labs synthesized and supplied in a short time with full characterization data. Later, customer requested us to make it on several gram scale and we synthesized and delivered as custom synthesis project.

LRH-1 agonism favours an immune-islet dialogue which protects against diabetes mellitus

NATURE COMMUNICATIONS | (2018) 9:1488 |DOI: 10.1038/s41467-018-03943-0 |

Type 1 diabetes mellitus (T1DM) is due to the selective destruction of islet beta cells by
immune cells. Current therapies focused on repressing the immune attack or stimulating beta
cell regeneration still have limited clinical efficacy. Therefore, it is timely to identify innovative
targets to dampen the immune process, while promoting beta cell survival and function. Liver
receptor homologue-1 (LRH-1) is a nuclear receptor that represses inflammation in digestive
organs, and protects pancreatic islets against apoptosis. Here, we show that BL001, a small
LRH-1 agonist, impedes hyperglycemia progression and the immune-dependent inflammation
of pancreas in murine models of T1DM, and beta cell apoptosis in islets of type 2 diabetic
patients, while increasing beta cell mass and insulin secretion. Thus, we suggest that LRH-1
agonism favors a dialogue between immune and islet cells, which could be druggable to
protect against diabetes mellitus.


//////////////SREENI LABS

FDA approves new drug Doptelet (avatrombopag) for patients with chronic liver disease who have low blood platelets and are undergoing a medical procedure



FDA approves new drug for patients with chronic liver disease who have low blood platelets and are undergoing a medical procedure

The U.S. Food and Drug Administration today approved Doptelet (avatrombopag) tablets to treat low blood platelet count (thrombocytopenia) in adults with chronic liver disease who are scheduled to undergo a medical or dental procedure. This is the first drug approved by the FDA for this use.Continue reading.

May 21, 2018


The U.S. Food and Drug Administration today approved Doptelet (avatrombopag) tablets to treat low blood platelet count (thrombocytopenia) in adults with chronic liver disease who are scheduled to undergo a medical or dental procedure. This is the first drug approved by the FDA for this use.

“Patients with chronic liver disease who have low platelet counts and require a procedure are at increased risk of bleeding,” said Richard Pazdur, M.D., director of the FDA’s Oncology Center of Excellence and acting director of the Office of Hematology and Oncology Products in the FDA’s Center for Drug Evaluation and Research. “Doptelet was demonstrated to safely increase the platelet count. This drug may decrease or eliminate the need for platelet transfusions, which are associated with risk of infection and other adverse reactions.”

Platelets (thrombocytes) are colorless cells produced in the bone marrow that help form blood clots in the vascular system and prevent bleeding. Thrombocytopenia is a condition in which there is a lower-than-normal number of circulating platelets in the blood. When patients have moderately to severely reduced platelet counts, serious or life-threatening bleeding can occur, especially during invasive procedures. Patients with significant thrombocytopenia typically receive platelet transfusions immediately prior to a procedure to increase the platelet count.

The safety and efficacy of Doptelet was studied in two trials (ADAPT-1 and ADAPT-2) involving 435 patients with chronic liver disease and severe thrombocytopenia who were scheduled to undergo a procedure that would typically require platelet transfusion. The trials investigated two dose levels of Doptelet administered orally over five days as compared to placebo (no treatment). The trial results showed that for both dose levels of Doptelet, a higher proportion of patients had increased platelet counts and did not require platelet transfusion or any rescue therapy on the day of the procedure and up to seven days following the procedure as compared to those treated with placebo.

The most common side effects reported by clinical trial participants who received Doptelet were fever, stomach (abdominal) pain, nausea, headache, fatigue and swelling in the hands or feet (edema). People with chronic liver disease and people with certain blood clotting conditions may have an increased risk of developing blood clots when taking Doptelet.

This product was granted Priority Review, under which the FDA’s goal is to take action on an application within six months where the agency determines that the drug, if approved, would significantly improve the safety or effectiveness of treating, diagnosing or preventing a serious condition.

The FDA granted this approval to AkaRx Inc.


//////////////Doptelet, avatrombopag, fda 2018, akarx, priority review,

FDA Approves Tavalisse (fostamatinib disodium hexahydrate) for Chronic Immune Thrombocytopenia — Med-Chemist

Rigel Pharmaceuticals, Inc. announced that the U.S. Food and Drug Administration (FDA) approved Tavalisse (fostamatinib disodium hexahydrate) for the treatment of thrombocytopenia in adult patients with chronic immune thrombocytopenia (ITP) who have had an insufficient response to a previous treatment. Tavalisse is an oral spleen tyrosine kinase (SYK) inhibitor that targets the underlying autoimmune cause of the…

via FDA Approves Tavalisse (fostamatinib disodium hexahydrate) for Chronic Immune Thrombocytopenia — Med-Chemist

Mibefradil, a new class of compound to study TRPM7 channel function — Sussex Drug Discovery Centre

Transient receptor potential (TRPM) is a family of non-selective cation channels that are widely expressed in mammalian cells. TRP channels are composed of six transmembrane domains and the family consists of eight different channels, TRPM1–TRPM8. TRPM7 is compromised of an ion channel moiety essential for the ion channel function, which serves to increase intracellular calcium […]

via Mibefradil, a new class of compound to study TRPM7 channel function — Sussex Drug Discovery Centre

Dark Chocolate improves vision with 2 hours — ClinicalNews.Org

Dark Chocolate improves vision with 2 hours Contrast sensitivity and visual acuity were significantly higher 2 hours after consumption of a dark chocolate bar compared with a milk chocolate bar, but the duration of these effects and their influence in real-world performance await further testing. Rabin JC, Karunathilake N, Patrizi K. Effects of Milk vs […]

via Dark Chocolate improves vision with 2 hours — ClinicalNews.Org

FDA approves new uses for two drugs Tafinlar (dabrafenib) and Mekinist (trametinib) administered together for the treatment of BRAF-positive anaplastic thyroid cancer

Image result for Novartis Pharmaceuticals Corporation.


FDA approves new uses for two drugs Tafinlar (dabrafenib) and Mekinist (trametinib) administered together for the treatment of BRAF-positive anaplastic thyroid cancer

The U.S. Food and Drug Administration approved Tafinlar (dabrafenib) and Mekinist (trametinib), administered together, for the treatment of anaplastic thyroid cancer (ATC) that cannot be removed by surgery or has spread to other parts of the body (metastatic), and has a type of abnormal gene, BRAF V600E (BRAF V600E mutation-positive). Continue reading.

May 4, 2018


The U.S. Food and Drug Administration approved Tafinlar (dabrafenib) and Mekinist (trametinib), administered together, for the treatment of anaplastic thyroid cancer (ATC) that cannot be removed by surgery or has spread to other parts of the body (metastatic), and has a type of abnormal gene, BRAF V600E (BRAF V600E mutation-positive).

“This is the first FDA-approved treatment for patients with this aggressive form of thyroid cancer, and the third cancer with this specific gene mutation that this drug combination has been approved to treat,” said Richard Pazdur, M.D., director of the FDA’s Oncology Center of Excellence and acting director of the Office of Hematology and Oncology Products in the FDA’s Center for Drug Evaluation and Research. “This approval demonstrates that targeting the same molecular pathway in diverse diseases is an effective way to expedite the development of treatments that may help more patients.”

Thyroid cancer is a disease in which cancer cells form in the tissues of the thyroid gland. Anaplastic thyroid cancer is a rare, aggressive type of thyroid cancer. The National Institutes of Health estimates there will be 53,990 new cases of thyroid cancer and an estimated 2,060 deaths from the disease in the United States in 2018. Anaplastic thyroid cancer accounts for about 1 to 2 percent of all thyroid cancers.

Both Tafinlar and Mekinist are also approved for use, alone or in combination, to treat BRAF V600 mutation-positive metastatic melanoma. Additionally, Tafinlar and Mekinist are approved for use, in combination, to treat BRAF V600E mutation-positive, metastatic non-small cell lung cancer.

The efficacy of Tafinlar and Mekinist in treating ATC was shown in an open-label clinical trial of patients with rare cancers with the BRAF V600E mutation. Data from trials in BRAF V600E mutation-positive, metastatic melanoma or lung cancer and results in other BRAF V600E mutation-positive rare cancers provided confidence in the results seen in patients with ATC. The trial measured the percent of patients with a complete or partial reduction in tumor size (overall response rate). Of 23 evaluable patients, 57 percent experienced a partial response and 4 percent experienced a complete response; in nine (64 percent) of the 14 patients with responses, there were no significant tumor growths for six months or longer.

The side effects of Tafinlar and Mekinist in patients with ATC are consistent with those seen in other cancers when the two drugs are used together. Common side effects include fever (pyrexia), rash, chills, headache, joint pain (arthralgia), cough, fatigue, nausea, vomiting, diarrhea, myalgia (muscle pain), dry skin, decreased appetite, edema, hemorrhage, high blood pressure (hypertension) and difficulty breathing (dyspnea).

Severe side effects of Tafinlar include the development of new cancers, growth of tumors in patients with BRAF wild-type tumors, serious bleeding problems, heart problems, severe eye problems, fever that may be severe, serious skin reactions, high blood sugar or worsening diabetes, and serious anemia.

Severe side effects of Mekinist include the development of new cancers; serious bleeding problems; inflammation of intestines and perforation of the intestines; blood clots in the arms, legs or lungs; heart problems; severe eye problems; lung or breathing problems; fever that may be severe; serious skin reactions; and high blood sugar or worsening diabetes.

Both Tafinlar and Mekinist can cause harm to a developing fetus; women should be advised of the potential risk to the fetus and to use effective contraception.

The FDA granted Priority Review and Breakthrough Therapy designation for this indication. Orphan Drug designation, which provides incentives to assist and encourage the development of drugs for rare diseases, was also granted for this indication.

The FDA granted this approval to Novartis Pharmaceuticals Corporation.


///////////////Tafinlar, dabrafenib,  Mekinist, trametinib, fda 2018, Priority Review,  Breakthrough Therapy designation, Orphan Drug designation,  Novartis Pharmaceuticals Corporation,

What are the drugs of the future? — All About Drugs

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Efmoroctocog alfa, エフモロクトコグアルファ;

(Heavy chain)
(Lignt chain)
(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)


CAS: 1270012-79-7


2015/11/19 ema APPROVED elocta

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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


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]

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

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