Mundo: FDA grants traditional approval for LEQEMBI® (lecanemab-irmb) for the treatment of Alzheimer’s disease (1)

(Información remitida por la empresa firmante)

STOCKHOLM, July 7, 2023 /PRNewswire/ — BioArctic AB’s (publ) (NASDAQ Stockholm: BIOA B) partner Eisai announced today that the U.S. Food and Drug Administration, FDA, has approved the supplemental Biologics License Application, sBLA, supporting the traditional approval of LEQEMBI® (lecanemab-irmb) 100 mg/mL injection for intravenous use, making LEQEMBI the first and only approved treatment shown to reduce the rate of disease progression and to slow cognitive and functional decline in adults with Alzheimer’s disease (AD). In conjunction with the approval the Centers for Medicare and Medicaid Services, CMS, announced that Medicare will provide broad coverage of LEQEMBI according to the FDA approved label provided that real-world evidence is collected in an easy-to-use patient registry.[1]

LEQEMBI’s traditional approval is based on Phase 3 data from Eisai’s large, global Clarity AD clinical trial, in which LEQEMBI met its primary endpoint and all key secondary endpoints with statistically significant results and confirmed the clinical benefit of LEQEMBI. The primary endpoint was the global cognitive and functional scale, Clinical Dementia Rating Sum of Boxes (CDR-SB). LEQEMBI treatment reduced clinical decline on CDR-SB by 27% at 18 months compared to placebo in an early Alzheimer’s disease[2] population. Additionally, the secondary endpoint of AD Cooperative Study-Activities of Daily Living Scale for Mild Cognitive Impairment (ADCS MCI-ADL), as measured by people caring for patients with AD, noted a statistically significant benefit of 37%. This measures the ability of patients to function independently, including being able to dress, feed themselves and participate in community activities. [3]

“The full, traditional approval of LEQEMBI in the US, combined with the broad Medicare reimbursement, is a paradigm-shifting step in the fight against Alzheimer’s disease,” said Gunilla Osswald, CEO of BioArctic. “Doctors in the US will now have a tool to combat this terrible chronic disease already at an early stage, with the potential to provide clinically meaningful benefit for patients and their families. More than two decades of research and development has led up to this moment, and I am impressed by the diligent efforts of our partner Eisai to ensure that this important innovation can now reach the patients BioArctic was founded to serve. I am full of gratitude and hope for the future.”

On June 9, 2023, the FDA’s Peripheral and Central Nervous System Drugs (PCNS) advisory committee voted unanimously that the data from Eisai’s Clarity AD clinical trial confirmed the clinical benefit of LEQEMBI for the treatment of AD. Committee members also confirmed the overall risk-benefit of LEQEMBI.

Importantly, following FDA’s traditional approval of LEQEMBI, CMS confirmed that broader coverage of LEQEMBI is now available and released more details on the registry, including the easy-to-use data submission process. The CMS-facilitated registry is now available for healthcare professionals to submit required patient data to CMS. We are pleased that Medicare will cover this important therapy for appropriate patients. This will facilitate reimbursement for and access to LEQEMBI across a broad range of healthcare settings in the United States.

“More than 25 years after my initial discoveries, it is fantastic to finally see LEQEMBI becoming available to the patients who have always been my focus,” said Professor Lars Lannfelt, Co-founder of BioArctic and inventor of LEQEMBI. “From the start, my idea was to find a way to clear the soluble amyloid beta (Aß) oligomers and protofibrils, the most neurotoxic forms of Aß, that continuously accumulate in the brain of Alzheimer disease patients. LEQEMBI was generated to do just that. But even if this is a great step forward, it is important for BioArctic and others to continue research to provide more options for patients.”

Eisai serves as the lead of lecanemab development and regulatory submissions globally with both Eisai and Biogen co-commercializing and co-promoting the product and Eisai having final decision-making authority. BioArctic has the right to commercialize lecanemab in the Nordic region and currently Eisai and BioArctic are preparing for a joint commercialization in the region.

This information is information that BioArctic AB (publ) is obliged to disclose pursuant to the EU Market Abuse Regulation. The information was released for public disclosure, through the agency of the contact person below, on July 7, 2023, at 02.00 a.m. CET.

For further information, please contact:

Oskar Bosson, VP Communications and IR

-E-mail: oskar.bosson@bioarctic.se

Phone: +46 70 410 71 80

INDICATION

LEQEMBI is indicated for the treatment of Alzheimer’s disease. Treatment with LEQEMBI should be initiated in patients with mild cognitive impairment or mild dementia stage of disease, the population in which treatment was initiated in clinical trials.

IMPORTANT SAFETY INFORMATION

CONTRAINDICATION

LEQEMBI is contraindicated in patients with serious hypersensitivity to lecanemab-irmb or to any of the excipients of LEQEMBI. Reactions have included angioedema and anaphylaxis.

WARNINGS AND PRECAUTIONS

Amyloid Related Imaging Abnormalities

LEQEMBI can cause ARIA-E and ARIA-H. ARIA-E can be observed on MRI as brain edema or sulcal effusions, and ARIA-H as microhemorrhage and superficial siderosis. ARIA can occur spontaneously in patients with Alzheimer’s disease. ARIA-H associated with monoclonal antibodies directed against aggregated forms of beta amyloid generally occurs in association with an occurrence of ARIA-E. ARIA-H and ARIA-E can occur together. ARIA usually occurs early in treatment and is usually asymptomatic, although serious and life-threatening events, including seizure and status epilepticus, rarely can occur. Reported symptoms associated with ARIA may include headache, confusion, visual changes, dizziness, nausea, and gait difficulty. Focal neurologic deficits may also occur. Symptoms associated with ARIA usually resolve over time.

ARIA Monitoring and Dose Management Guidelines

Obtain recent baseline brain magnetic resonance imaging (MRI) prior to initiating treatment with LEQEMBI. Obtain an MRI prior to the 5th, 7th and 14th infusions.

Recommendations for dosing in patients with ARIA-E and ARIA-H depend on clinical symptoms and radiographic severity. Depending on ARIA severity, use clinical judgment in considering whether to continue dosing, temporarily discontinue treatment, or permanently discontinue LEQEMBI.

Enhanced clinical vigilance for ARIA is recommended during the first 14 weeks of treatment with LEQEMBI. If a patient experiences symptoms suggestive of ARIA, clinical evaluation should be performed, including MRI if indicated. If ARIA is observed on MRI, careful clinical evaluation should be performed prior to continuing treatment.

There is no experience in patients who continued dosing through symptomatic ARIA-E or through asymptomatic, but radiographically severe, ARIA-E. There is limited experience in patients who continued dosing through asymptomatic but radiographically mild to moderate ARIA-E. There are limited data in dosing patients who experienced recurrent ARIA-E.

Incidence of ARIA

In Study 2, symptomatic ARIA occurred in 3% (29/898) of LEQEMBI-treated patients. Serious symptoms associated with ARIA were reported in 0.7% (6/898) of patients treated with LEQEMBI. Clinical symptoms associated with ARIA resolved in 79% (23/29) of patients during the period of observation.

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