Larimar Reports Positive Data for Nomlabofusp

Share

Larimar Therapeutics has reported encouraging long-term data from its open-label study of nomlabofusp, an investigational therapy for Friedreich’s ataxia (FA), while confirming plans to seek accelerated FDA approval in the second quarter of 2026. The study, which is evaluating daily subcutaneous doses of nomlabofusp in adolescents and adults with FA, showed sustained increases in frataxin (FXN) protein levels, which the company describes as the root cause deficiency in the disease. After six months of treatment, all 10 participants with available data achieved FXN levels above 50% of those measured in healthy volunteers, a range comparable to asymptomatic carriers who do not develop FA, it says.

Safety data remains a key focus, according to the company. To date, out of 65 patients who have received nomlabofusp during clinical studies, seven cases of anaphylaxis were reported in the open-label trial, most within the first six weeks of dosing. All patients recovered after treatment. Larimar says it has since adjusted its dosing protocol, introducing a lower test dose and stepwise escalation to improve tolerability, a strategy reviewed and accepted by FDA.

Read more