8-K current report · filed Jun 29, 2026

Larimar Therapeutics, Inc. (LRMR) 8-K Current Report: June 29, 2026

Item 8.01Item EX-99.1LRMR overview

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Larimar Therapeutics, Inc. (LRMR) filed an 8-K current report with the SEC on June 29, 2026 reporting Item 8.01 (Other Events), Item EX-99.1 (Exhibit EX-99.1). Rolling BLA submission initiated with FDA for accelerated approval of nomlabofusp.

Larimar Therapeutics, Inc. 8-K event analysis

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Item 8.01 · Other Events

  • Rolling BLA submission initiated with FDA for accelerated approval of nomlabofusp
  • Regulatory milestone advances nomlabofusp toward potential approval for Friedreich’s ataxia
  • Positive long-term open-label data reported in adolescent and adult patients
  • Data cover daily subcutaneous injections, supporting continued clinical development
  • Investor presentation and conference call scheduled for June 29, 2026

Item EX-99.1 · Exhibit EX-99.1

  • FDA alignment supports rolling BLA submission for accelerated approval, with first module filed and remaining modules expected in 2H 2026
  • Skin FXN exceeded 8.2 pg/µg in 100% of participants at 12 and 18 months, supporting FXN as a potential surrogate endpoint
  • Clinical outcomes improved at 1 year versus FACOMS worsening, including mFARS improvement of 1.0 point versus 1.6-point deterioration
  • Anaphylaxis occurred in 10 of 41 participants, including one without prior nomlabofusp exposure, creating a key safety and regulatory risk
  • Phase 3 initiation planned for Q3 2026, with mid-2027 launch targeted if approved

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