CMT1A is caused by the duplication of the Peripheral Myelin Protein 22 (PMP22) gene, which leads to the demyelination of the peripheral nerves. CMT1A patients have overexpression (too much) PMP22 protein.
HNF Research Initiatives
FDA Repurposed Drugs
In September 2021, HNF partnered with Rarebase, a public benefit company that leverages cutting-edge technology (Function, a tech-enabled drug discovery platform) and biology using FDA-approved drugs to deliver accelerated, off-label treatments for CMT1A. HNF has completed Phase I of the project.
Novel Disease Modifying Drugs
Pharnext Pharmaceuticals
A clinical-stage biopharmaceutical company, partnered with HNF in 2012 to support the development of PXT3003 for CMT1A. Currently Pharnext is expecting the results of the PREMIER Phase III clinical trial later this year.
Miralinc Pharmaceuticals
An early stage biotech was founded with the initial investment from HNF. Company has pioneered next generation Histone deacetylase subtype 6 inhibitors (HDAC6i’) to advance life-changing disease cures for several types of CMT, including CMT1A.
Natural History Studies
The Global Registry for Inherited Neuropathies (GRIN)
Developed in 2013 to stratify large groups of patients for all types of CMT to gain a deeper understanding of CMT. This important data also allows HNF to better identify the burden, diagnostic journey, and prevalence of CMT that will aid TRIAD research partners. Patient data = Improved Research & Clinical Trial Design.
CMT&Me App
A smartphone digital study sponsored by Pharnext Pharmaceuticals in collaboration with HNF, other CMT advocacy groups and experts in six countries to collect real-world anonymised data from adults (≥18 years) living with CMT. The aggregated data is available in close to real time, via dashboards and is analyzed based on pre-set criteria (ie. diseases stage, daily symptoms, age, demographics) to understand the real-world impact of CMT and the unmet needs of patients.
If you don’t know your CMT type, you can find out from the HNF through The CMT Genie Program.
www.cmtgenie.orgUS Food and Drug Administration has agreed with Pharnext and provided clear guidance on the regulatory pathway to approval for PXT3003, including key design elements of a single pivotal Phase III study
The FDA has agreed with the key elements of Pharnext’s approach for the developmental pathway to approval for PXT3003.
Clinical Trial for CMT1A begins in Korea
Helixmith, specializing in gene therapy research for over 20 years, has kicked off its phase I and 2a clinical trial for using VM202 (Engensis) to treat CMT1A.
Press Release: Pharnext provides regulatory and clinical update on PXT3003 Phase III study for the treatment of Charcot-Marie-Tooth Type 1A
US Food and Drug Administration has agreed with Pharnext and provided clear guidance on the regulatory pathway to approval for PXT3003, including key design elements of a single pivotal Phase III study
Good News for CMT1A Patients – PXT3003
Three major regulatory agencies in the United Kingdom, Europe and US have recognized PXT3003 as a lead drug candidate to treat CMT1A.
Pharnext raises € 7.7 million in a private placement
Pharnext SA (FR0011191287 – ALPHA) (the “Company”), a biopharmaceutical company pioneering a new approach to developing innovative drug combinations based on its PLEOTHERAPY artificial intelligence platform harnessing big genomics data and network pharmacology, today announced a capital raise of circa € 7.7 million by way of issuance of 1,799,061 new ordinary shares (the “New Shares”) with one warrant attached each (together with the New Shares, the “ABSA”).
Pharnext’s lead PLEODRUG © for treatment of CMT1
Pharnext completed patient enrollment for the international Phase 3 clinical trial of PXT3003, Pharnext’s lead PLEODRUG ©, for treatment of CMT1A.
Hot Off the Press – Potential Treatment for CMT1A
Two recent publications from Pharnext describe a novel synergistic combination of 3 drugs (baclofen, naltrexone and sorbitol) and its effect on CMT1A both in the lab and in a phase II clinical trial. These 3 drugs already approved but for unrelated conditions, are combined at new optimal lower doses and under a new formulation. This novel potential therapeutic is called PXT-3003.
Pharnext Announces Pleotherapy Proof of Concept in Charcot-Marie-Tooth Disease Type 1A
PARIS, December 18th, 2014 – Pharnext SAS today announced the proof of concept of its pleotherapy research and development approach based on a proprietary network pharmacology platform that identifies synergic combinations of drugs already approved for other diseases. Indeed, Pharnext’s lead pleodrug, PXT-3003, has shown positive results both in preclinical and Phase 2 clinical studies published today in the Orphanet Journal of Rare Diseases.
Building Awareness on CMT and Supporting the Patient Community – HNF Announces Support from Pharnext
HNFpharnext recently entered into a partnership with the French biopharmaceutical company, Pharnext, to help raise awareness of Charcot-Marie-Tooth (CMT) disease and support the CMT patient community through several initiatives. Building awareness is key! Pharnext’s support will assist HNF in distributing HNF’s CMT Update quarterly newsletter, enhancing the Global Registry for Inherited Neuropathies (GRIN), setting up activities for CMT September Awareness Month in the US and strengthening the CMT Inspire Community.
Targeting PMP22 in CMT1A Patients with Gene Duplication
In previous collaborative work with a group of investigators including Dr Rolf Renne from the University of Florida, Dr. Alex Murashov from East Carolina University and Dr. Lynn Hudson from the NIH-NINDS, we validated a microRNA known as miR29a as a reagent that corrected the expression level of PMP22 in rodent Schwann cells.