All told, things are not looking good for this MS drug from Merck KGaA. It was rejected outright by the EU in Sep 2010 (#msg-54812455). In the US, Cladribine received an RTF letter in 2009; Merck KGaA resubmitted the NDA in Jun 2010 (#msg-51012919) and surprisingly received a priority-review designation from the FDA. However, the FDA’s new 3-month extension for completing the review effectively nullifies the priory-review status.
All told, things are not looking good for this MS drug from Merck KGaA. It was rejected outright by the EU in Sep 2010 (#msg-54812455). In the US, Cladribine received an FDA RTF letter in 2009; Merck KGaA resubmitted the NDA in Jun 2010 (#msg-51012919).
Cladribine has been an unmitigated disaster. It was rejected by the EU in Sep 2010 (#msg-54812455). In the US, the writing was on the wall when the FDA issued a CRL in Mar 2011 after failing to evaluate the NDA during the allotted time despite its having a priority review designation (#msg-57103405).
One fewer competitor for Teva, MNTA, NVS, and BIIB to worry about.