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Pfizer initiates rolling submission of NDA to US FDA for its fast-tracked investigational compound crizotinib
New York | Friday, January 14, 2011, 11:00 Hrs  [IST]

Pfizer Inc. announced that it has initiated the rolling submission of a New Drug Application (NDA) to the US Food and Drug Administration (FDA) for crizotinib (PF-02341066), an oral first-in-class anaplastic lymphoma kinase (ALK) inhibitor for the treatment of patients with advanced non-small cell lung cancer (NSCLC) whose tumours are ALK-positive. Pfizer expects to complete the submission in the first half of 2011.

“This action represents a significant step in the registration process for crizotinib (PF-02341066). Pfizer is committed to working collaboratively with the FDA as we move forward in the submission process with the ultimate goal of offering a new treatment option for patients with advanced ALK-positive NSCLC,” said Garry Nicholson, president and general manager, Pfizer Oncology Business Unit.

The FDA’s Fast Track process is designed to facilitate development and expedite review of drugs that treat serious or life-threatening diseases and demonstrate the potential to address unmet medical need. Pfizer was granted Fast Track designation by the FDA for crizotinib (PF-02341066) in December 2010. The rolling submission, which is available to medicines that have received Fast Track designation, allows completed portions of the crizotinib (PF-02341066) NDA to be submitted and reviewed by the FDA on an ongoing basis.

Crizotinib (PF-02341066) is an oral first-in-class compound that inhibits the anaplastic lymphoma kinase, or ALK. Alterations in the ALK gene are believed to be a key driver of tumour development in cancers like NSCLC, and approximately 3-5 per cent of NSCLC tumours are ALK-positive. By inhibiting ALK, crizotinib (PF- 02341066) blocks signalling in a number of cell pathways that are critical for the growth and survival of tumour cells. Crizotinib (PF-02341066) is also an inhibitor of c-MET (mesenchymal endothelial transition factor).

Pfizer also plans regulatory submissions to the FDA and the European Medicines Agency for two other investigational oncology compounds in 2011 — axitinib, an oral and selective inhibitor of vascular endothelial growth factor (VEGF) receptors for the treatment of patients with metastatic renal cell carcinoma (mRCC), and bosutinib, an oral dual Src and Abl kinase inhibitor, for the treatment of chronic myeloid leukaemia (CML).

Pfizer Oncology is committed to the discovery, investigation and development of innovative treatment options to improve the outlook for cancer patients worldwide. Our strong pipeline, one of the most robust in the industry, is studied with precise focus on identifying and translating the best scientific breakthroughs into clinical application for patients across a wide range of cancers. Pfizer Oncology has biologics and small molecules in clinical development and more than 100 clinical trials underway.

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