ChemGenex Pharmaceuticals Limited (ASX: CXS) announced today it has agreed with the U.S. Food and Drug Administration (FDA) on a potential regulatory path to progress OMAPRO™ (omacetaxine mepesuccinate) for the treatment of patients with Chronic Myeloid Leukemia (CML).
“We also appreciate FDA's invitation to discuss this approach further in a pre-NDA meeting”
The recent Type A Meeting, which included discussion of a regulatory path forward, addressed outstanding issues regarding the previously received Complete Response letter dated 8 April 2010.
Based on the discussion with the FDA, ChemGenex intends to combine data from its two pivotal studies, Study 202 and Study 203, and submit a New Drug Application (NDA) for OMAPRO for those patients with CML who have failed prior treatment with two or more currently approved tyrosine kinase inhibitors (TKIs). The proposed indication of this new NDA will be for the treatment of CML patients who have failed two or more TKIs, regardless of their mutation status.
"The FDA's agreement that a combined data set could serve as the basis of an NDA in a third-line setting provides us with a pathway to an expanded indication for OMAPRO to treat CML patients who are resistant to at least two TKIs," said Adam Craig, MD, Chief Medical Officer of ChemGenex.
"We also appreciate FDA's invitation to discuss this approach further in a pre-NDA meeting," he added. "We welcome the opportunity granted by the agency to submit combined data from our two completed pivotal studies and to potentially provide a new therapeutic choice for this significant group of patients who currently have very limited treatment options."