Navigation Links
Rib-X Pharmaceuticals Antibiotic Drug Discovery Platform Discovers Novel Compounds with Activity Against Key Multiple Drug Resistant Gram-negative Bacteria
Date:8/31/2009

NEW HAVEN, Conn., Aug. 31 /PRNewswire/ -- Rib-X Pharmaceuticals, Inc. ("Rib-X" or the "Company"), a development-stage company focused on the discovery, development and commercialization of novel antibiotics for the treatment of acute care antibiotic-resistant infections, today announced that one of its discovery-stage programs has yielded several computationally designed series of chemically unique compounds demonstrating efficacy in the treatment of infection in animal models.

The Rx-04 discovery program is focused on the development of novel classes of antibiotics active against serious, rapidly emerging multi-drug resistant Gram-negative bacteria such as Pseudomonas aeruginosa and Acinetobacter baumannii. The company has built five chemical scaffolds, some of which have demonstrated activity against both Gram-negative and Gram-positive bacteria, including methicillin-resistant Staphylococcus aureus (MRSA). Data from an earlier, related program will be presented during a poster sessions at the 49th Interscience Conference on Antimicrobial Agents and Chemotherapy (ICAAC) in San Francisco.

"In less than one year, our structure and computationally driven research engine has engineered a variety of new lead scaffolds that appear to exhibit promising activity in mice, good drug-like properties and good safety in early tests, in addition to varied profiles against MDR gram-negative pathogens in vitro," said Susan Froshauer, PhD, President and CEO of Rib-X Pharmaceuticals. "The success we've seen to date with our later clinical stage antibiotic compounds, radezolid and delafloxacin, along with the immense progress made on the Rx-04 program, underscores the strength and diversity of the growing Rib-X pipeline."

About Rx-04

The Rx-04 program employs a de novo approach to develop novel antibiotics that are active against Gram-negative bacteria. This program exploits the peptidyl transferase region of the 50S subunit, which is the catalytic region of the ribosome and the binding site of many chemically distinct classes of antibiotics, including oxazolidinones (e.g., linezolid), lincosamides (e.g., clindamycin), phenyl propanoids (e.g., chloramphenicol), pleuromutilins (e.g., retapamulin), macrolides/ketolides (e.g., azithromycin) and sparsomycin. Rib-X has created five completely novel series of compounds targeting two novel sites that show good antibacterial activity against a number of clinically important multi drug resistant Gram-negative pathogens.

About Rib-X Pharmaceuticals, Inc.

Rib-X Pharmaceuticals, Inc. is a product-driven small molecule drug discovery and development company focused on the structure-based design of new classes of antibiotics. The Company's underlying drug discovery engine capitalizes on its proprietary high-resolution crystal structure of the ribosome, which performs an essential role in protein synthesis. Many known, commercially valuable antibiotics exert their effects by binding to the bacterial ribosome. The Company's integrated research strategy, which combines state-of-the-art, proprietary computational analysis, X-ray crystallography, medicinal chemistry, microbiology and biochemistry, allows it to rapidly synthesize new agents designed to avoid typical antibiotic resistance mechanisms. Rib-X's iterative intelligent engine has yielded several distinctive new antibiotics that can be used for the treatment of either community- or hospital-acquired infections. In addition to Rx-04, Rib-X has successfully completed Phase 2 trials with delafloxacin (RX-3341), a broad spectrum fluoroquinolone with potent activity against quinolone resistant Gram-positive bacteria including MRSA. Radezolid (RX-1741), an oxazolidinone that was discovered at Rib-X, as an oral/IV agent for treatment of serious Gram-positive infections has completed two Phase 2 trials and the Rx-02 discovery program which is focused on developing an IV/oral macrolide active against methicillin-resistant S. aureus, multidrug-resistant Streptococcus pneumoniae and S. pyogenes. Both delafloxacin and radezolid are currently in late stage clinical trials.

For more information on the Rib-X mission and the pipeline, please visit the Company website at www.rib-x.com.


'/>"/>
SOURCE Rib-X Pharmaceuticals, Inc.
Copyright©2009 PR Newswire.
All rights reserved

Related biology technology :

1. Rib-X Pharmaceuticals Initiates Two Phase 2 Studies for Novel Antibiotic Compound RX-1741
2. Rib-X Pharmaceuticals to Present at Cambridge Healthtech Institutes 2nd Annual Challenge of Antibacterial Development Conference
3. Rib-X Pharmaceuticals, Inc. Announces Formation of Clinical Advisory Board
4. Rib-X Pharmaceuticals to Present at the 2008 ICAAC/IDSA Joint Meeting
5. Rib-X Pharmaceuticals Announces Positive Phase 2 Study Results for Delafloxacin and a $25 Million Financing
6. Rib-X Pharmaceuticals Announces Presentations at the 19th European Congress of Clinical Microbiology and Infectious Diseases (ECCMID)
7. Rib-X Pharmaceuticals, Inc. Appoints Dr. Russell Greig to Board of Directors
8. Rib-X Pharmaceuticals Reports Positive Phase 2 Study Results for Radezolid in Community-Acquired Pneumonia
9. Vion Pharmaceuticals Pays Interest on 7.75% Convertible Senior Notes
10. China Biopharmaceuticals Holdings Announces Second Quarter 2007 Financial Results
11. Vion Pharmaceuticals Completes Accrual of 85 Patients to its Pivotal Phase II Trial of Cloretazine(R) (VNP40101M) in Elderly AML
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/23/2016)... June 23, 2016   Boston Biomedical , ... compounds designed to target cancer stemness pathways, announced ... granted Orphan Drug Designation from the U.S. Food ... gastric cancer, including gastroesophageal junction (GEJ) cancer. Napabucasin ... to inhibit cancer stemness pathways by targeting STAT3, ...
(Date:6/23/2016)... -- A person commits a crime, and the detective uses ... criminal down. An outbreak of foodborne illness makes ... uses DNA evidence to track down the bacteria that caused ... not. The FDA has increasingly used a complex, cutting-edge technology ... Put as simply as possible, whole genome sequencing is a ...
(Date:6/23/2016)... ... June 23, 2016 , ... ... and Mold) microbial test has received AOAC Research Institute approval 061601. , “This ... introduced last year,” stated Bob Salter, Vice President of Regulatory and Industrial Affairs. ...
(Date:6/23/2016)...  The Biodesign Challenge (BDC), a university competition that ... living systems and biotechnology, announced its winning teams at ... New York City . The teams, ... at MoMA,s Celeste Bartos Theater during the daylong summit. ... curator of architecture and design, and Suzanne Lee ...
Breaking Biology Technology:
(Date:5/24/2016)... Ampronix facilitates superior patient care by providing unparalleled technology to leaders of ... the latest premium product recently added to the range of products distributed by Ampronix. ... ... ... Medical Display- Ampronix News ...
(Date:5/3/2016)...  Neurotechnology, a provider of high-precision biometric identification ... Identification System (ABIS) , a complete system for ... can process multiple complex biometric transactions with high ... face or iris biometrics. It leverages the core ... MegaMatcher Accelerator , which have been used in ...
(Date:4/19/2016)... UAE, April 20, 2016 The ... as a compact web-based "all-in-one" system solution for all ... fingerprint reader or the door interface with integration authorization ... access control systems. The minimal dimensions of the access ... into the building installations offer considerable freedom of design ...
Breaking Biology News(10 mins):