Ipsen Withdraws NDA Palovarotene for More Analyses
Ipsen has withdrawn its NDA for palovarotene, indicated for preventing heterotropic ossification (new bone formation) as a potential treatment for people living with fibrodysplasia ossificans progressiva (FOP). Palovarotene is described as an oral, investigational, selective RARγ agonist. The NDA was accepted for priority review 5/28.
The company says that during the review and ongoing dialog between Ipsen and FDA reviewers, “it was recognized that additional analyses and evaluation of data collected from Ipsen’s Phase 3 MOVE and FOP program would be required to progress and complete the review process. It was agreed between Ipsen and the FDA that it would not be possible to complete this within the current NDA review cycle. As a result, Ipsen has therefore confirmed their withdrawal of the NDA for palovarotene. After recent discussion with FDA, Ipsen plans to resubmit to the FDA upon completion of the additional data analyses.”
Ipsen describes FOP as an ultra-rare genetic disorder that is characterized by heterotropic ossification (HO), formation of bone in soft and connective tissues. It says HO is permanent and leads to severe functional limitations in joint mobility, progressive and cumulative disability and to shortened life expectancy.