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FDA Grants Clementia’s Palovarotene Rare Pediatric Disease Designation for Fibrodysplasia Ossificans Progressiva

MONTREAL, Feb. 11, 2019 (GLOBE NEWSWIRE) — Clementia Pharmaceuticals Inc. (Nasdaq: CMTA), a clinical-stage biopharmaceutical company innovating treatments for people with ultra-rare bone disorders and other diseases, today announced that the U.S. Food and Drug Administration (FDA) has granted Rare Pediatric Disease designation to palovarotene for the treatment of fibrodysplasia ossificans progressiva (FOP). Palovarotene, an investigational therapy for FOP, has previously been granted Orphan Drug, Fast Track and Breakthrough designations by the FDA for FOP.

“FOP is a rare, devastating disease that begins to irreversibly impact individuals in childhood,” said Clarissa Desjardins, Ph.D., founder and chief executive officer of Clementia. “The receipt of this designation highlights the urgent need for a treatment for people with FOP.  The entire Clementia team is working towards an NDA submission in the second half of 2019 in hopes of achieving our first regulatory approval, an important step toward achieving our mission of bringing innovative and effective treatments to individuals who currently have none.”

In October 2018, based on a meeting with the FDA, Clementia announced that the Agency was supportive of the company’s plan to submit a New Drug Application (NDA) for palovarotene for the prevention of heterotopic ossification (HO) associated with flare up symptoms in patients with FOP. The FDA based its assessment on the efficacy and safety data generated in the completed Phase 2 clinical program. The company’s NDA preparations are underway, with a submission targeted for the second half of 2019. If approved, Clementia expects a first commercial launch for palovarotene in 2020.

The Rare Pediatric Disease Designation qualifies investigational palovarotene for a Rare Pediatric Disease Priority Review Voucher (PRV), granted at the time of NDA approval. The PRV Program is intended to encourage development of therapies to prevent and treat rare pediatric diseases. This PRV can be redeemed to receive a priority review of a subsequent marketing application or sold to a third party.

About Palovarotene
Palovarotene is an RARγ agonist being developed as a potential treatment for patients with ultra-rare and debilitating bone diseases, including fibrodysplasia ossificans progressiva (FOP) and multiple osteochondromas (MO), as well as other diseases. Palovarotene was in-licensed from Roche Pharmaceuticals, where it was previously evaluated in more than 800 subjects, including 450 patients treated for up to two years. Palovarotene has received Orphan Drug status for FOP and MO from the U.S. Food and Drug Administration (FDA) and the European Medicines Agency (EMA). In addition, palovarotene has been granted Fast Track, Breakthrough Therapy and Pediatric Rare Disease designations for FOP from the FDA.

About Fibrodysplasia Ossificans Progressiva (FOP)
FOP is a rare, severely disabling disorder characterized by heterotopic ossification (HO), or bone that forms outside the normal skeleton, in muscles, tendons or soft tissue. In FOP, HO progressively restricts movement by locking joints, leading to a cumulative loss of function, progressive disability, and increased risk of early death. FOP is caused by a mutation in the ACVR1 gene, resulting in excess signaling in the bone morphogenetic pathway, a key pathway controlling bone growth and development, by way of both ligand-dependent and independent mechanisms. There are currently no approved treatments for FOP.

About Clementia Pharmaceuticals Inc.
Clementia is a clinical-stage company innovating treatments for people with ultra-rare bone disorders and other diseases with high medical need. The company is preparing to submit an NDA in the second half of 2019 to seek approval of its lead product candidate, palovarotene, a novel RARγ agonist, for fibrodysplasia ossificans progressiva (FOP). The ongoing Phase 3 MOVE Trial is evaluating an additional dosing regimen of investigational palovarotene for FOP. Palovarotene is also in a Phase 2 trial, the MO-Ped Trial, for the potential treatment of multiple osteochondromas (MO, also known as multiple hereditary exostoses, or MHE). In addition, Clementia has commenced a Phase 1 trial for an eye drop formulation of palovarotene for the potential treatment of dry eye disease and is also investigating other conditions that may benefit from RARγ therapy. For more information, please visit www.clementiapharma.com and connect with us on Twitter @ClementiaPharma.

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