Larimar Therapeutics, Inc. (LRMR), Monday announced encouraging data from the ongoing long-term open label or OL study, evaluating daily subcutaneous injections of nomlabofusp in participants with Friedreich's ataxia, a rare, progressive, and systemic disease with neurologic deterioration. During the study, participants were initially administered 25 mg of nomlabofusp daily. Later, the dose was increased to 50 mg in the fourth quarter of 2024. The data showed that nomlabofusp increases skin frataxin or FXN ...

In 4 completed studies and the ongoing OL study, 65 participants received at least 1 dose of nomlabofusp, including 39 in the OL study, with 14 on treatment for at least 6 months and 8 for over 1 year in the OL studyIncreases in skin FXN levels with short- and long-term daily nomlabofusp; 10/10 participants with data at 6 months achieved skin FXN levels over 50% of median levels in healthy volunteers (which is similar to levels in asymptomatic carriers)Consistent directional improvement across 4 key clinica ...

Highlights Initial data from the 50 mg dose in the open label study and the adolescent PK run-in study planned for program update in September 2025 Adolescent participants from the PK run-in study and patients with FA who have not participated in prior nomlabofusp clinical studies are currently screening and enrolling in the open label study; planning to enroll children (2 to 11 years of age) directly into the open label study FDA recommended that the safety database include at least 30 participants with co ...