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ORGANIC SPECTROSCOPY

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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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FDA approves new treatment for hospital-acquired and ventilator-associated bacterial pneumonia


The U.S. Food and Drug Administration today approved a new indication for the previously FDA-approved drug, Zerbaxa (ceftolozane and tazobactam) for the treatment of hospital-acquired bacterial pneumonia and ventilator-associated bacterial pneumonia (HABP/VABP) in patients 18 years and older. The FDA initially approved Zerbaxa in 2014 to treat complicated intra-abdominal infections and for complicated urinary tract infections.

“A key global challenge we face as a public health agency is addressing the threat of antimicrobial-resistant infections,” said FDA Principal Deputy Commissioner Amy Abernethy, M.D., Ph.D. “Hospital-acquired and ventilator-associated bacterial pneumonia are serious infections that can result in death in some patients. New therapies to treat these infections are important to …

https://www.fda.gov/news-events/press-announcements/fda-approves-new-treatment-hospital-acquired-and-ventilator-associated-bacterial-pneumonia?utm_campaign=060319_PR_FDA%20approves%20treatment%20for%20hospital-acquired%20and%20ventilator-associated%20bacterial%20pneumonia&utm_medium=email&utm_source=Eloqua

June 03, 2019

The U.S. Food and Drug Administration today approved a new indication for the previously FDA-approved drug, Zerbaxa (ceftolozane and tazobactam) for the treatment of hospital-acquired bacterial pneumonia and ventilator-associated bacterial pneumonia (HABP/VABP) in patients 18 years and older. The FDA initially approved Zerbaxa in 2014to treat complicated intra-abdominal infections and for complicated urinary tract infections.

“A key global challenge we face as a public health agency is addressing the threat of antimicrobial-resistant infections,” said FDA Principal Deputy Commissioner Amy Abernethy, M.D., Ph.D. “Hospital-acquired and ventilator-associated bacterial pneumonia are serious infections that can result in death in some patients. New therapies to treat these infections are important to meet patient needs because of increasing antimicrobial resistance. That’s why, among our other efforts to address antimicrobial resistance, we’re focused on facilitating the development of safe and effective new treatments to give patients more options to fight life-threatening infections.”

HABP/VABP occur in patients in hospitals or other health care facilities and can be caused by a variety of bacteria. According to data from the U.S. Centers for Disease Control and Prevention, HABP and VABP are currently the second most common type of hospital-acquired infection in the United States, and are a significant issue in patients in the intensive care unit (ICU).

The safety and efficacy of Zerbaxa for the treatment of HABP/VABP, administered via injection, was demonstrated in a multinational, double-blind study that compared Zerbaxa to another antibacterial drug in 726 adult patients hospitalized with HABP/VABP. The study showed that mortality and cure rates were similar between Zerbaxa and the comparator treatment.

The most common adverse reactions observed in the HABP/VABP trial among patients treated with Zerbaxa were elevated liver enzyme levels, renal impairment or failure, and diarrhea.
Zerbaxa should not be used in patients with known serious hypersensitivity to components of Zerbaxa, as well as hypersensitivity to piperacillin/tazobactam or other members of the beta lactam class of antibacterial drugs.

Zerbaxa received FDA’s Qualified Infectious Disease Product (QIDP) designation for the treatment of HABP/VABP. The QIDP designation is given to antibacterial and antifungal drug products intended to treat serious or life-threatening infections under the Generating Antibiotic Incentives Now (GAIN) title of the FDA Safety and Innovation Act. As part of QIDP designation, the Zerbaxa marketing application for the HABP/VABP indication was granted Priority Review under which the FDA’s goal is to take action on an application within an expedited time frame.

The FDA granted the approval of Zerbaxa for the treatment of HABP/VABP to Merck & Co., Inc.

//////////////ceftolozane,  tazobactam, FDA 2019,  Zerbaxa,  HABP/VABP, Merck , Qualified Infectious Disease Product,  (QIDP),  Priority Review

FDA Grants QIDP and Fast Track Designations for Cubist’s Late-Stage Antibiotic Candidates


  • QIDP granted for ceftolozane/tazobactam in HABP/VABP and cUTI
  • Fast track status provided for ceftolozane/tazobactam (CXA-201) in cIAI

February 28, 2013

LEXINGTON, Mass.,  Cubist Pharmaceuticals, Inc. today announced that the U.S. Food and Drug Administration (FDA) has designated the company’s late-stage antibiotic candidate, ceftolozane/tazobactam, as a Qualified Infectious Disease Product (QIDP) for the indications of Hospital-Acquired Bacterial Pneumonia (HABP)/Ventilator-Associated Bacterial Pneumonia (VABP) and Complicated Urinary Tract Infections (cUTI).

Additionally, the company received from the FDA notification that Cubist’s antibiotic candidates, ceftolozane/tazobactam and surotomycin, have been granted Fast Track status in their previously granted QIDP indications, Complicated Intra-Abdominal Infections (cIAI) and Clostridium difficile-Associated Diarrhea (CDAD) respectively.

“We are excited to receive the QIDP and Fast Track designations for ceftolozane/tazobactam and surotomycin, which further reinforce the importance the FDA places on helping to advance critically needed antibiotics,” said Steven Gilman, Ph.D., Executive Vice President of Research and Development and Chief Scientific Officer of Cubist Pharmaceuticals. “In a very short period of time, the GAIN Act has shown its value in helping to incentivize antibiotic development.”

The QIDP designation for ceftolozane/tazobactam will enable Cubist to benefit from certain incentives for the development of new antibiotics, including priority review, eligibility for Fast Track status, and if ceftolozane/tazobactam is ultimately approved by the FDA, a five year extension of Hatch-Waxman exclusivity. These incentives are provided under the Generating Antibiotic Incentives Now Act (GAIN Act), which received strong bipartisan support in Congress and was signed into law by President Obama in July 2012 as part of the FDA Safety and Innovation Act (FDASIA), the fifth authorization of the Prescription Drug User Fee Act.

Ceftolozane/tazobactam is currently being studied in pivotal Phase 3 trials as a potential first-line intravenous therapy for the treatment of cIAI and cUTI caused by Gram-negative pathogens, including those caused by multi-drug resistant Pseudomonas aeruginosa. Cubist expects to initiate a Phase 3 VABP program for ceftolozane/tazobactam by mid-year. Surotomycin, a rapidly bactericidal lipopeptide, is currently in Phase 3 being studied as a potential treatment for patients with a severe and sometimes life-threatening diarrhea caused by CDAD.

About The GAIN Act

The GAIN Act, Title VIII (Sections 801 through 806) of the FDASIA, provides pharmaceutical and biotechnology companies with incentives to develop new antibacterial and antifungal drugs for the treatment of life-threatening infectious diseases caused by drug resistant pathogens. Qualifying pathogens are defined by the GAIN Act to include multi-drug resistant Gram-negative bacteria, including Pseudomonas, Acinetobacter, Klebsiella, and Escherichia coli species; resistant Gram-positive pathogens, including methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant Staphylococcus aureus and vancomycin-resistant Enterococcus; multi-drug resistant tuberculosis; and Clostridium difficile.

About Gram-negative bacteria

The diseases caused by Gram-negative bacteria include intra-abdominal infections, urinary tract infections, pneumonia, peritonitis, septicemia, neonatal meningitis, and burn and wound infections. In the US in 2003, Gram-negative bacteria were associated with many of the most frequent types of hospital-acquired infections including 71% of urinary tract infections, 65% of pneumonia episodes, 34% of surgical site infections, and 24% of bloodstream infections. Important Gram-negative bacteria include Pseudomonas, Escherichia coli, Klebsiella, and Acinetobacter.

About CDAD

CDAD is a disease caused by an overgrowth of, and toxin production by C. difficile, a Gram-positive bacterium naturally found in the lower gastrointestinal tract. This overgrowth is caused by the use of antibiotics for the treatment of common community and hospital acquired infections. Many antibiotics cure the underlying infection but, as a consequence, disrupt the natural balance of intestinal bacteria which allows C. difficile to overgrow. The overgrown C. difficile bacteria produce enterotoxin and cytotoxin, two proteins that can lead to potentially life-threatening severe diarrhea and sepsis (blood infection). CDAD rates and severity are increasing, due in part to the spread of a new strain with increased virulence and greater resistance to fluoroquinolones, a standard of care treatment. According to an article in the October 2008 issue of the New England Journal of Medicine, during the mid- and late-1990s, the reported incidence of C. difficile infections in acute care hospitals in the United States remained stable at 30 to 40 cases per 100,000. However in 2001, this number rose to almost 50, with subsequent increases to the point that the number of cases that were reported in 2005 (84 per 100,000) was nearly three times the 1996 rate (31 per 100,000).

About Cubist

Cubist Pharmaceuticals, Inc. is a biopharmaceutical company focused on the research, development, and commercialization of pharmaceutical products that address significant unmet medical needs in the acute care environment. Cubist is headquartered in Lexington, Mass. Additional information can be found at Cubist’s web site at www.cubist.com.

ceftolozane

credit —kegg

http://www.ama-assn.org/resources/doc/usan/ceftolozane.pdf

89293-68-3 cas no

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tazobactum

cas no89786-04-9

Tazobactam is a compound that inhibits the action of bacterial beta-lactamases. It is combined with the extended spectrum beta-lactam antibiotic piperacillin in the drug Tazocin (also Zosyn, Piprataz)one of the preferred antibiotic treatment for CAP caused by P. aeruginosa. It broadens the spectrum of piperacillin by making it effective against organisms that express beta-lactamase and would normally degrade piperacillin.

Tazobactam sodium is a derivative of the penicillin nucleus and is a penicillanic acid sulfone.

 

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