Health Canada approves Ipsen’s Sohonos (palovarotene capsules) as the first approved treatment for fibrodysplasia ossificans progressiva
PARIS, France, 24 January 2022 – Ipsen (Euronext: IPN; ADR: IPSEY) today announced the Health Canada approval of SohonosTM (palovarotene capsules), an oral selective retinoic-acid receptor gamma (RARγ) agonist indicated to reduce the formation of heterotopic ossification (HO; new bone formation) in adults and children aged 8 years and above for females and 10 years and above for males with fibrodysplasia ossificans progressiva (FOP).1 Sohonos is approved for the treatment of patients with FOP for both chronic use, and for flare-ups, in these patient populations. This decision marks the first approval for Sohonos worldwide.
Dr. Howard Mayer, Executive Vice President and Head of Research and Development, Ipsen, said “FOP is a progressive and debilitating condition which has such a profound impact on patients, and their families. Until today, there was no approved medicine, and we are proud to bring this important new medicine to the FOP community.”
FOP is characterized by new bone formation outside of the normal skeletal system, like in soft connective tissues, a process known as heterotopic ossification,2 which can be preceded by painful soft tissue swelling or “flare-ups.”2 Flare-up episodes are common and are a substantial contributor to the formation of new bone, however bone can also form in the absence of a flare-up. Once formed, it is irreversible and leads to loss of mobility and shortened life expectancy.2 It is an ultra-rare genetic disorder with an estimated prevalence of 1.36 per million individuals; however, the number of confirmed cases varies by country.3,4
As part of the ongoing commitment to the FOP and rare disease community, Ipsen plans to file in the US in H1 2022 and is in discussions with other regulatory authorities around the world.
- Data on file
- Kaplan FS, et al. The medical management of fibrodysplasia ossificans progressiva: current treatment considerations. Proc Intl Clin Council FOP 1:1-111, 2019.
- Lilijesthrom, M & Bogard, B 2016, ‘The global known FOP population’, FOP Drug Development Forum, Boston, MA, 24-25 October.
- Baujat et al. Prevalence of fibrodysplasia ossificans progressiva (FOP) in France: an estimate based on a record linkage of two national databases. Orphanet Journal of Rare Diseases. 2017; 12:123.
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