Astellas Receives Positive Opinion From CHMP For European Approval Of VIBATIV™ For Nosocomial Pneumonia Caused By MRSA
The CHMP, on the basis of quality, safety and efficacy data submitted, considered there to be a favourable benefit to risk balance for VIBATIV and therefore recommended the granting of the marketing authorisation.
The CHMP's positive opinion is a critical step in the approval process, and it is expected that the European Commission will follow the advice of the CHMP and grant marketing authorisation in approximately two to three months. If approved, it would allow Astellas to make the product available to healthcare professionals trying to meet the challenge of treating serious hospital-acquired lung infections caused by MRSA.
"This positive opinion from the CHMP for VIBATIV is great news for both doctors and patients who continue to battle serious life-threatening nosocomial pneumonia, including ventilator associated pneumonia caused by MRSA," said Ken Jones, President and CEO, APEL. "It means healthcare professionals will soon have a new, effective hospital antibiotic with potent bactericidal activity against Gram-positive bacteria and potentially a higher likelihood of generating successful clinical outcomes in certain critically ill patients who increasingly fail to respond to established therapy1," he added.
The European Centre for Disease Prevention and Control (ECDC) estimate that each year more than 4 million patients in Europe acquire an infection in hospital. At least 37,000 Europeans die as a direct result of hospital-acquired infections.2 Risk factors for contracting a hospital-acquired infection due to MRSA include older age, prolonged hospitalisation, intravenous drug use and diabetes.3 MRSA is the most frequent cause of ventilator-associated pneumonia and the second highest cause of mortality in these critically ill patients.4
Across Europe there is a high unmet need for new drugs which are active against MRSA and other Gram-positive pathogens particularly with poor susceptibility to more commonly used antibacterials.5
VIBATIV, licensed from Theravance, Inc. for global commercialisation, is a bactericidal, once-daily, injectable lipoglycopeptide antibiotic with a dual mechanism of action against Gram-positive bacteria including resistant pathogens such as MRSA6,7. In Phase 3 clinical trials, more than 750 patients with nosocomial pneumonia, including a subset of patients with ventilator associated pneumonia, have been treated with VIBATIV.
In phase 3 clinical trials ATTAIN I and ATTAIN II VIBATIV has demonstrated non-inferiority to vancomycin in the primary endpoint of clinical cure, with better outcomes in certain patient populations. 7-9
VIBATIV was approved in the United States in September 2009, and in Canada in October, 2009 for adult patients with complicated skin and skin structure infections (cSSSI) caused by susceptible Gram-positive bacteria.10
Astellas has an ongoing commitment to combating infectious diseases through the worldwide launch of its injectable antifungal echinocandin, MYCAMINE® (micafungin), which has been used to treat over 750,000 patients worldwide.11 In addition, Astellas has entered into a global partnership with Basilea Pharmaceuticals Ltd. to co-develop and co-promote isavuconazole, an azole antifungal for the treatment of invasive fungal infections, including Aspergillosis, currently in Phase 3 trials; and with Optimer Pharmaceuticals Inc. to develop and commercialise fidaxomicin, an investigational antibiotic under regulatory review as a novel treatment for Clostridium difficile infection in Europe and certain other countries.12
1. Matteo Bassetti M, Mikulska M, Righi E et al. The role of telavancin in the treatment of MRSA infections in hospital. Expert Opin Investig. Drugs 2009; 18:521-529
2. European Centre for Disease Control Accessed 17 May 2011
3. Ratnaraja & Hawley. Current challenges in treating MRSA: what are the options? Expert Rev Anti Infect Ther 2008;6:601-18.
4. Kollef MH, Morrow LE, Niederman MS et al. Clinical Characteristics and Treatment Patterns Among Patients with Ventilator-Associated Pneumonia.Chest 2006;129:1210-8
5. ECDC/EMEA Joint Technical Report: The bacterial challenge: time to react. 17 September 2009. See here. Accessed 17 May 2011
6. Higgins DL, Chang R, Debabov DV, et al. Telavancin, a multifunctional lipoglycopeptide, disrupts both cell wall synthesis and cell membrance integrity in methicillin-resistant Staphylococcus aureus. Antimicrob. Agents Chemother 2005;49:1127-1134
7. Rubinstein E, Lalani T, Corey GR, et al. Telavancin versus vancomycin for hospital-acquired pneumonia due to gram-positive pathogens. Clin Infect Dis 2011; 52:31-40
8. Shorr AF, Niederman M, Kollef MH, et al. Telavancin: a novel agent for ventilator-associated pneumonia due to Staphylococcus aureus. Oral presentation at the Annual Meeting of the ACCP; Chest 2008, abstract.
9. Rubinstein, E, Barriere, SL, Genter, FC, et al. Late ventilator-associated pneumonia (VAP): analysis of baseline characteristics and clinical outcomes in the ATTAIN studies. Poster 823. SCCM 2010
10. VIBATIV US prescribing information May 2011
11. IMS Midas sales 12/02 to 12/10, Astellas Pharma Ltd
12. Astellas press release on partnership with Optimer for fidaxomicin, 7th Feb 2011
Astellas Pharma Europe Ltd.
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