Cerebral Amyloid Angiopathy

March 12, 2024 -- Arctic Therapeutics ehf, an Icelandic drug development company and partner Nacuity Pharmaceuticals, Inc., a clinical-stage biopharmaceutical company developing treatments for retinitis pigmentosa, cataracts and other diseases caused by oxidative stress, today announced approval by the European Medicines Agency (EMA) for initiation of the first clinical trial evaluating AT-001 (Nacuity’s NPI-001) for the treatment of Hereditary Cystatin C Amyloid Angiopathy (HCCAA) in Iceland. HCCAA is an ultra rare, serious condition characterized by the accumulation of amyloid in the brain's blood vessels, which can lead to cerebral hemorrhage, stroke, and progressive neurological deterioration, including dementia. Current treatment options are severely limited, focusing primarily on symptom management rather than addressing the underlying cause of the disease. AT-001 is a differentiated, purified, prescription-quality, GMP-grade N-acetylcysteine amide (NACA). “EMA's approval paves the way for a comprehensive investigation into the safety and efficacy of a novel therapeutic approach designed to halt or reverse the progression of HCCAA. Our study aims to explore the potential of AT-001 in modifying the disease's course, improving patient outcomes, and ultimately, saving lives,” said Ivar Hakonarson, CEO and co-founder of Arctic. In September 2022, Nacuity and Arctic entered into an exclusive licensing agreement and strategic partnership for the development and commercialization of Nacuity’s NPI-001 under the name AT-001 for HCCAA in Iceland and related forms of amyloid angiopathies (CAAs) worldwide. Nacuity is also currently evaluating NPI-001 in Phase 1/2 clinical trials in Australia for retinitis pigmentosa associated with Usher syndrome and cystinosis. “Our proprietary NPI-001 has potential to address the myriad diseases and conditions where oxidative stress plays a role. EMA approval for the evaluation of NPI-001 tablets for treatment of HCCAA represents most importantly, a step forward in addressing HCCAA, a life threatening and underserved rare disease, and secondly, a key pharmaceutical quality milestone for the companies in the global development of NPI-001,” said G. Michael Wall, Ph.D., SVP & CSO, Nacuity. Nacuity Pharmaceuticals, Inc. (http://www.nacuity.com/), is a clinical-stage leader in innovative treatments for oxidative stress. The company’s powerful, targeted therapies aim to attentuate oxidative tissue damage, a driver of blinding eye diseases and a broad spectrum of serious chronic conditions. Nacuity has three highly differentiated clinical programs ongoing in retinitis pigmentosa, cataracts and cystinosis with the potential to be first-of-a-kind therapies and gateways to wider applications. Nacuity has operations in Fort Worth, TX, USA, and Australia, and extensive managerial and scientific domain expertise as well as backing from Foundation Fighting Blindness (https://www.fightingblindness.org/) and its venture arm RD Fund (https://www.retinaldegenerationfund.org). Arctic Therapeutics ehf (AT) (https://www.arctictherapeutics.com/) is an Icelandic drug development company, established in 2015 as a spin-off from the US-based Center for Applied Genomics (CAG), a research center at the Children's Hospital of Philadelphia. AT leverages the transformative power of applied genomics, steering the course of drug development towards safer, more effective treatments for some of the world’s most challenging diseases. The company has operations in Iceland, USA, and multiple collaborations across Europe. The content above comes from the network. if any infringement, please contact us to modify.

REYKJAVIK, Iceland and FORT WORTH, Texas, March 12, 2024 (GLOBE NEWSWIRE) -- Arctic Therapeutics ehf, an Icelandic drug development company and partner Nacuity Pharmaceuticals, Inc., a clinical-stage biopharmaceutical company developing treatments for retinitis pigmentosa, cataracts and other diseases caused by oxidative stress, today announced approval by the European Medicines Agency (EMA) for initiation of the first clinical trial evaluating AT-001 (Nacuity’s NPI-001) for the treatment of Hereditary Cystatin C Amyloid Angiopathy (HCCAA) in Iceland. HCCAA is an ultra rare, serious condition characterized by the accumulation of amyloid in the brain's blood vessels, which can lead to cerebral hemorrhage, stroke, and progressive neurological deterioration, including dementia. Current treatment options are severely limited, focusing primarily on symptom management rather than addressing the underlying cause of the disease. AT-001 is a differentiated, purified, prescription-quality, GMP-grade N-acetylcysteine amide (NACA). “EMA's approval paves the way for a comprehensive investigation into the safety and efficacy of a novel therapeutic approach designed to halt or reverse the progression of HCCAA. Our study aims to explore the potential of AT-001 in modifying the disease's course, improving patient outcomes, and ultimately, saving lives,” said Ivar Hakonarson, CEO and co-founder of Arctic. In September 2022, Nacuity and Arctic entered into an exclusive licensing agreement and strategic partnership for the development and commercialization of Nacuity’s NPI-001 under the name AT-001 for HCCAA in Iceland and related forms of amyloid angiopathies (CAAs) worldwide. Nacuity is also currently evaluating NPI-001 in Phase 1/2 clinical trials in Australia for retinitis pigmentosa associated with Usher syndrome and cystinosis. “Our proprietary NPI-001 has potential to address the myriad diseases and conditions where oxidative stress plays a role. EMA approval for the evaluation of NPI-001 tablets for treatment of HCCAA represents most importantly, a step forward in addressing HCCAA, a life threatening and underserved rare disease, and secondly, a key pharmaceutical quality milestone for the companies in the global development of NPI-001,” said G. Michael Wall, Ph.D., SVP & CSO, Nacuity. About Nacuity Pharmaceuticals, Inc. Nacuity Pharmaceuticals, Inc. ( ), is a clinical-stage leader in innovative treatments for oxidative stress. The company’s powerful, targeted therapies aim to attentuate oxidative tissue damage, a driver of blinding eye diseases and a broad spectrum of serious chronic conditions. Nacuity has three highly differentiated clinical programs ongoing in retinitis pigmentosa, cataracts and cystinosis with the potential to be first-of-a-kind therapies and gateways to wider applications. Nacuity has operations in Fort Worth, TX, USA, and Australia, and extensive managerial and scientific domain expertise as well as backing from Foundation Fighting Blindness ( ) and its venture arm RD Fund ( ). About Arctic Therapeutics ehf Arctic Therapeutics ehf (AT) ( ) is an Icelandic drug development company, established in 2015 as a spin-off from the US-based Center for Applied Genomics (CAG), a research center at the Children's Hospital of Philadelphia. AT leverages the transformative power of applied genomics, steering the course of drug development towards safer, more effective treatments for some of the world’s most challenging diseases. The company has operations in Iceland, USA, and multiple collaborations across Europe. Nacuity Media Contact Julia Clements Tel: 267.626.1085 jclements@6degreespr.com Arctic Media Contact Gulli Arnason gulli@arctictherapeutics.com

STOCKHOLM, March 11, 2024 /PRNewswire/ -- BioArctic AB (publ) (Nasdaq Stockholm: BIOA B) and its partner Eisai presented new data on lecanemab (brand name: Leqembi®) at the 2024 International Conference on Alzheimer's and Parkinson's Diseases and related neurological disorders (AD/PD™), held in Lisbon, Portugal and virtually, March 5–9. BioArctic's founder, Professor Lars Lannfelt, presented data on the binding properties of the anti-amyloid-beta (Aβ) antibody lecanemab and other anti Aβ antibodies. Lecanemab was designed to preferentially bind soluble (protofibrils), as well as insoluble Aβ aggregates (fibrils), to reduce both Aβ protofibrils and Aβ plaques in the brain. The difference in binding to CAA[1] was presented, with lecanemab having lower binding to CAA than most other antibodies. This could explain the difference in the adverse event ARIA[2] seen between different antibodies, with lecanemab showing relatively low incidence of ARIA. In another presentation Professor Christopher van Dyke presented extended efficacy results from the Phase 3 Clarity AD open label extension study of lecanemab in Alzheimer's disease up to 30 months, showing continued benefit with lecanemab treatment. Professor van Dyke also highlighted data from the tau sub-study of Clarity AD, which showed that all cohorts of the tau population benefitted from treatment with lecanemab. Data from the low tau population, representing earlier stages of the disease, indicated that intervening in early stages of disease may be particularly impactful in stabilizing the disease process. "It is inspiring to see all the data presented at the conference further strengthening lecanemab's efficacy and safety results, specifically from the earlier cohorts of patients which alludes to the importance of early diagnosis and treatment," said Gunilla Osswald, CEO at BioArctic. "It has also been impressive to see how the field is moving forward, and we have seen encouraging data regarding both alpha-synuclein and blood brain barrier transportation approaches." Lecanemab is the result of a long-standing collaboration between BioArctic and Eisai, and the anti Aβ protofibril antibody was originally developed by BioArctic based on the work of Professor Lars Lannfelt and his discovery of the Arctic mutation in Alzheimer's disease. 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, pending European approval, and currently Eisai and BioArctic are preparing for commercialization in the region. This release discusses investigational uses of an agent in development and is not intended to convey conclusions about efficacy or safety. There is no guarantee that such investigational agents will successfully complete clinical development or gain health authority approval. The information was released for public disclosure, through the agency of the contact persons below, on March 11, 2024, at 08.00 a.m. CET. For further information, please contact: Oskar Bosson, VP Communications and IR E-mail: [email protected] Phone: +46 70 410 71 80 Jiang Millington, Director Corporate Communication and Social Media E-mail: [email protected] Phone: +46 79 33 99 166 About lecanemab (generic name, U.S., Japan and China brand name: Leqembi®) Lecanemab is the result of a strategic research alliance between BioArctic and Eisai. Lecanemab is a humanized immunoglobulin gamma 1 (IgG1) monoclonal antibody directed against aggregated soluble (protofibril) and insoluble forms of amyloid-beta (Aβ). In the U.S., Leqembi was granted traditional approval by the US Food and Drug Administration (FDA) on July 6, 2023. Leqembi is indicated as a disease-modifying treatment for Alzheimer's disease (AD) in the US. Treatment with Leqembi should be initiated in patients with mild cognitive impairment (MCI) or mild dementia stage of disease, the population in which treatment was initiated in clinical trials. Please see full U.S. Prescribing Information. In Japan, Eisai received approval from the Ministry of Health, Labour and Welfare (MHLW) on September 25, 2023, to manufacture and market lecanemab as a treatment for slowing progression of MCI and mild dementia due to AD. Furthermore, in China, Leqembi was approved by the National Medical Products Administration (NMPA) as a treatment of MCI due to AD and mild AD dementia in January 2024. Eisai has also submitted applications for approval of lecanemab in 14 different countries, including EU, Canada and Great Britain. Eisai has completed a lecanemab subcutaneous bioavailability study, and subcutaneous dosing is currently being evaluated in the Clarity AD (Study 301) open-label extension (OLE) study. A maintenance dosing regimen has been evaluated as part of the Phase 2b study (Study 201). Since July 2020 Eisai's Phase 3 clinical study (AHEAD 3-45) for individuals with preclinical AD, meaning they are clinically normal and have intermediate or elevated levels of amyloid in their brains, is ongoing. AHEAD 3-45 is conducted as a public-private partnership between the Alzheimer's Clinical Trial Consortium that provides the infrastructure for academic clinical trials in AD and related dementias in the U.S, funded by the National Institute on Aging, part of the National Institutes of Health and Eisai. Since January 2022, the Tau NexGen clinical study for Dominantly Inherited AD (DIAD), that is conducted by Dominantly Inherited Alzheimer Network Trials Unit (DIAN-TU), led by Washington University School of Medicine in St. Louis, is ongoing and includes lecanemab as the backbone anti-amyloid therapy. About the collaboration between BioArctic and Eisai Since 2005, BioArctic has a long-term collaboration with Eisai regarding the development and commercialization of drugs for the treatment of Alzheimer's disease. The most important agreements are the Development and Commercialization Agreement for the lecanemab antibody, which was signed 2007, and the Development and Commercialization agreement for the antibody Leqembi back-up for Alzheimer's disease, which was signed 2015. In 2014, Eisai and Biogen entered into a joint development and commercialization agreement for lecanemab. Eisai is responsible for the clinical development, application for market approval and commercialization of the products for Alzheimer's disease. BioArctic has the right to commercialize lecanemab in the Nordic region under certain conditions and is currently preparing for commercialization in the Nordics together with Eisai. BioArctic has no development costs for lecanemab in Alzheimer's disease and is entitled to payments in connection with regulatory approvals, and sales milestones as well as royalties on global sales. About BioArctic AB BioArctic AB (publ) is a Swedish research-based biopharma company focusing on innovative treatments that can delay or stop the progression of neurodegenerative diseases. The company invented Leqembi® (lecanemab) - the world's first drug proven to slow the progression of the disease and reduce cognitive impairment in early Alzheimer's disease. Leqembi has been developed together with BioArctic's partner Eisai, who are responsible for regulatory interactions and commercialization globally. In addition to Leqembi, BioArctic has a broad research portfolio with antibodies against Parkinson's disease and ALS as well as additional projects against Alzheimer's disease. Several of the projects utilize the company's proprietary BrainTransporter™ technology, which has the potential to actively transport antibodies across the blood-brain barrier to enhance the efficacy of the treatment. BioArctic's B share (BIOA B) is listed on Nasdaq Stockholm Large Cap. For further information, please visit . [1] CAA, or cerebral amyloid angiopathy, is a condition characterized by the accumulation of amyloid proteins in the walls of the blood vessels in the brain. [2] ARIA, or Amyloid-Related Imaging Abnormalities, refers to changes seen on MRI scans associated with amyloid-targeting therapies for Alzheimer's disease, and can manifest as edema (ARIA-E) or hemorrhage (ARIA-H) This information was brought to you by Cision The following files are available for download: