Clementia Announces Plan to Submit a New Drug Application for Palovarotene for the Treatment of FOP Based on Positive Phase 2 Results
Updated Regulatory Strategy Based on 12-Week Flare-up Data from Completed Phase 2 Program and Consultation with the FDA
NDA Submission Planned for the Second Half of 2019
The data provided to the FDA included the results from Clementia’s Phase 2 studies, which were recently presented at ASBMR 2018. In these studies, 92 palovarotene-treated flare-ups in 62 patients across three different dosing regimens were evaluated compared to 46 placebo or untreated flare-ups in 41 patients from the Company’s natural history study. Patients treated with palovarotene at the time of a flare-up demonstrated a greater than 70 percent reduction in mean new HO volume at 12 weeks compared to the untreated group. Further, the reduction in mean new HO volume among those treated with the episodic 20/10 mg dosing regimen (20 mg for 4 weeks starting at the time of a flare-up followed by 10 mg for 8 weeks) was statistically significant (p=0.02). Palovarotene was generally well tolerated across all dosing regimens of the Phase 2 clinical program. There were dose-related increases in retinoid-associated adverse events (AEs) with most being mild or moderate in severity, and only one patient discontinued participation in the study because of an AE.
Following the completion of standard non-clinical, clinical pharmacology and CMC studies to be agreed upon with the FDA, Clementia plans to submit its NDA in the second half of 2019 to seek approval of the palovarotene 20/10 mg episodic dosing regimen.
“The identification of a path to an NDA submission in the second half of 2019 is a significant milestone for Clementia and for patients with this ultra-rare and devastating genetic bone disease,” said
Clementia’s ongoing Phase 3 MOVE Trial will continue as planned, evaluating a dosing regimen of palovarotene which includes a chronic 5 mg daily dose in addition to the episodic 20/10 mg dosing regimen at the time of a flare-up. The Company believes that, if successful, the data from the MOVE Trial may provide the basis for a supplemental NDA for an additional treatment regimen option for patients with FOP.
Clementia also plans to engage international regulatory authorities in 2019 to discuss the registration strategy for palovarotene and anticipates providing an update at a later stage.
Palovarotene is an RARγ agonist being developed as a 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
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.
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 for a 2019 NDA submission to the FDA to seek approval of its lead product candidate, palovarotene, a novel RARγ agonist, for the treatment of fibrodysplasia ossificans progressiva (FOP). The ongoing Phase 3 MOVE Trial is evaluating an additional dosing regimen of palovarotene which includes a chronic 5 mg daily dose in addition to the episodic 20/10 mg dosing regimen at the time of a flare-up. Palovarotene is also in a Phase 2 trial, the MO-Ped Trial, for the 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.
Cautionary Note Regarding Forward-Looking Statements
This press release may include “forward-looking statements” within the meaning of the applicable securities laws, including with respect to the proposed timing of submission of the NDA for palovarotene. Each forward-looking statement contained in this press release is subject to known and unknown risks and uncertainties and other unknown factors that could cause actual results to differ materially from historical results and those expressed or implied by such statement. In addition to statements which explicitly describe such risks and uncertainties, readers are urged to consider statements labeled with the terms “believes,” “belief,” “expects,” “intends,” “anticipates,” “will,” or “plans” to be uncertain and forward-looking. Applicable risks and uncertainties include, among others, the Company’s ability to successfully complete in a timely manner the studies required to be completed in order to submit the NDA, the Company’s ability to generate revenue and become profitable; the risks related to its heavy reliance on palovarotene, its only current product candidate; the risks associated with the development of palovarotene and any future product candidate, including the demonstration of efficacy and safety; its dependence on licensed intellectual property, including the ability to source and maintain licenses from third-party owners; as well as the risks identified under the heading “Risk Factors” in the Company’s Annual Report on Form 20-F filed with the
Source: Clementia Pharmaceuticals Inc.