Lexeo Therapeutics Stock Rallies On Discussions With FDA To Expedite Friedreich’s Ataxia Drug Approval Process

Published Oct 07, 2025. https://stocktwits.com 

The company stated that data from a planned pivotal study will be pooled with data from the ongoing Phase I/II studies of LX2006 to support an approval application to the U.S. Food and Drug Administration for the therapy. 

 Lexeo Therapeutics (LXEO) announced on Tuesday that the company is considering a smaller pivotal study for LX2006 in the treatment of Friedreich's ataxia (FA) cardiomyopathy, scheduled to begin in the first half of 2026, pending finalization of the study protocol. 

 The data from the planned pivotal study will be pooled with data from the ongoing Phase I/II studies of LX2006 to support an approval application to the U.S. Food and Drug Administration for the therapy, the company stated after discussions with the agency.

Lexeo says FDA open to speedier approval of rare disease gene therapy

Published Oct. 7, 2025. https://www.biopharmadive.com/ 

The agency will consider a submission that includes pooled data from ongoing studies, a decision analysts viewed as a notable, additional sign of regulatory flexibility for gene therapies.

According to the company, the agency has “indicated openness” to an accelerated approval filing for its treatment — a gene therapy called LX2006 for the neurodegenerative condition Friedreich’s ataxia — that’s based on pooled data from ongoing studies as well as results from a planned pivotal trial.

A25-86 Omaveloxolone (Friedreich’s ataxia) – Benefit assessment according to §35a Social Code Book V

Commission awarded on 01.07.2025 by the Federal Joint Committee (G-BA). Last updated 01.10.2025. 

Result of dossier assessment: Added benefit not proven.

Delphi study to elicit expert consensus around decision-making in the treatment of Friedreich ataxia

Delphi study to elicit expert consensus around decision-making in the treatment of Friedreich ataxia. Front. Neurol.Sec. Movement Disorders Volume 16 - 2025 | doi: 10.3389/fneur.2025.1669059

Consensus was reached on a portion of questions regarding FA diagnosis and assessment, perhaps due to the rarity of disease and panelists' varying FA experience. To improve and standardize management of FA, it is important to establish best practices and educate potential FA treaters as new therapies emerge.

357PLong-term vatiquinone treatment slows Friedreich’s ataxia disease progression relative to FACOMS natural history

357PLong-term vatiquinone treatment slows Friedreich’s ataxia disease progression relative to FACOMS natural history. Vagabov, A. et al. Neuromuscular Disorders, Volume 53, 106087 DOI:10.1016/j.nmd.2025.106087 

 The results of the extension studies provide further evidence of the potential benefit of vatiquinone for the treatment of FA. The pre-specified endpoints for two different long-term extension studies were met, with highly statistically significant evidence of durable treatment benefit in slowing disease progression in paediatric and adult patients.

234PLong-term use of omaveloxolone in patients with Friedreich ataxia: up to 5 years of natural history propensity score matching from the MOXIe OLE

234PLong-term use of omaveloxolone in patients with Friedreich ataxia: up to 5 years of natural history propensity score matching from the MOXIe OLE. Nachbauer, W. et al.. Neuromuscular Disorders, Volume 53, 106043 doi:10.1016/j.nmd.2025.106043 

 Continued analysis of the MOXIe OLE data informs on long-term efficacy and safety of omaveloxolone in patients with FA and provides relevant insights regarding disease progression in patients treated with omaveloxolone relative to the natural pattern of FA progression in the FACOMS cohort.

Friedreich Ataxia and Related Diabetes: Therapeutic Approach Targeting Mitochondrial Dysfunction

Pichakacheri Sureshkumar, Sidharth S Kumar, Johny Cheriyan, Asif Masood, Friedreich Ataxia and Related Diabetes: Therapeutic Approach Targeting Mitochondrial Dysfunction, JCEM Case Reports, Volume 3, Issue 11, November 2025, luaf215, doi:10.1210/jcemcr/luaf215 

 This case report discusses a 32-year-old woman with Friedreich ataxia (FA) and suboptimally managed diabetes mellitus (DM), focusing on a treatment strategy aimed at improving mitochondrial function for better glycemic control and symptom management. Her regimen included insulin, a dipeptidyl peptidase-4 (DPP-4) inhibitor, neurotropic vitamins, and mitochondriotropic agents and antioxidants, specifically L-carnitine, coenzyme Q10 (CoQ10), and vitamin E. Imeglimin, a mitochondriotropic antihyperglycemic agent, was also part of her regimen.

357P Long-term vatiquinone treatment slows Friedreich’s ataxia disease progression relative to FACOMS natural history

A. Vagabov, J. Cherry, A. Duqette, M. França, S. Perlman, A. Durr, E. Bertini, K. Mathews, L. Schöls, A. Fournier, M. Delatycki, S. Subramony, R. Roxburgh, M. Rance, O. Zhang, L. Golden, J. Gruenert, C. Werner, D. Lynch, T. Zesiewicz, 357PLong-term vatiquinone treatment slows Friedreich’s ataxia disease progression relative to FACOMS natural history, Neuromuscular Disorders, Volume 53, Supplement, 2025, 106087, ISSN 0960-8966, doi:10.1016/j.nmd.2025.106087. 

 Vatiquinone (EPI-743) is an investigational, oral, first-in-class 15-lipoxygenase inhibitor being developed for the treatment of patients with Friedreich’s ataxia (FA). Here, we report long-term results of vatiquinone treatment in patients with FA from the MOVE-FA extension study (36 months) and Study EPI-2010-006 (24 months), compared with matched natural history cohorts from FACOMS (Friedreich Ataxia Clinical Outcome Measures). MOVE-FA (NCT04577352) was a global phase 3 study of vatiquinone in patients with FA aged ≥ 7 years (N = 143; mean age: 18.7 years); participants who completed MOVE-FA were eligible to rollover into the long-term extension (NCT05515536). EPI-2010-006 (NCT01728064) was a phase 2 study of vatiquinone in adult patients with FA ≥ 18 years (N = 63; mean age: 28.9 years). The pre-specified primary endpoint for these analyses was the modified Friedreich’s Ataxia Rating Scale (mFARS). After 36 months in the MOVE-FA long-term extension study, participants in the vatiquinone treatment group demonstrated a 3.75-point increase in mFARS. The matched FACOMS cohort progressed by 7.48 points over the same period. Vatiquinone treatment resulted in a 3.7-point benefit (p < 0.0001, n = 70) in mFARS relative to FACOMS, representing a clinically meaningful 50% slowing of disease progression over 3 years. Following 24-months of treatment with vatiquinone in EPI-2010-006, participants demonstrated a 0.92-point decrease in mFARS while participants in the matched FACOMS cohort progressed by 3.89 points. This resulted in a 4.8-point treatment benefit (p < 0.0001, n = 41), consistent with a 2-year delay in progression. The results of the extension studies provide further evidence of the potential benefit of vatiquinone for the treatment of FA. The pre-specified endpoints for two different long-term extension studies were met, with highly statistically significant evidence of durable treatment benefit in slowing disease progression in paediatric and adult patients.

Emerging therapies for Friedreich Ataxia and the prospect of future combination treatments

Lees, J. G., Li, L., & Lim, S. Y. (2025). Emerging therapies for Friedreich Ataxia and the prospect of future combination treatments. Future Rare Diseases, 5(1). doi:10.1080/23995270.2025.2563497

Although no single therapy has yet delivered a cure, the growing understanding of FRDA’s underlying mechanisms, coupled with an expanding therapeutic arsenal and more refined clinical measures, offers genuine hope that transformative, life-changing treatments are within reach. Realizing this promise will depend on continued collaboration among patients, clinicians, researchers, industry, and regulatory stakeholders to ensure that scientific advances translate into tangible, meaningful benefits for the FRDA community.

Larimar Therapeutics Announces Positive Data from Ongoing Long-term Open Label Study and Updates to Nomlabofusp Program for Friedreich’s Ataxia

BALA CYNWYD, Pa., Sept. 29, 2025 (GLOBE NEWSWIRE) -- Larimar Therapeutics, Inc. (Larimar) (Nasdaq: LRMR), a clinical-stage biotechnology company focused on developing treatments for complex rare diseases, today announced positive 25 mg and 50 mg data from the ongoing long-term open label (OL) study evaluating daily subcutaneous injections of nomlabofusp self-administered or administered by a caregiver in participants with Friedreich’s ataxia (FA), a rare, progressive, and systemic disease with neurologic deterioration. The Company also provided a nomlabofusp development program update.