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AstraZeneca to Acquire Icosavax – European Pharmaceutical Manufacturer

AstraZeneca has entered into a definitive agreement to acquire Icosavax Inc, a US-based clinical-stage biopharmaceutical company focused on developing differentiated, high-potential vaccines using an innovative, protein virus-like particle (VLP) platform.

The proposed acquisition will build on AstraZeneca’s expertise in respiratory syncytial virus (RSV), strengthening AstraZeneca’s Vaccines & Immune Therapies late-stage pipeline with Icosavax’s lead investigational vaccine candidate, IVX-A12. IVX-A12 is a potential first-in- class, Phase III-ready, combination protein VLP vaccine which targets both RSV and human metapneumovirus (hMPV), two leading causes of severe respiratory infection and hospitalisation in adults 60 years of age and older and those with chronic conditions such as cardiovascular, renal and respiratory disease. There are currently no treatments or preventative therapies for hMPV and no combination vaccines for RSV.

IVX-A12 is the most advanced investigational vaccine targeting both RSV and hMPV and has a differentiated profile versus currently approved RSV vaccines. Phase II data demonstrate that IVX-A12 elicits robust immune responses against both RSV and hMPV one month after vaccination and reconfirm previous immunogenicity data seen in the Phase I trial.

As VLP vaccines mimic how naturally occurring viruses appear to the body’s immune system, they may offer potential benefits over non-VLP vaccines, including a stronger immune response, greater breadth of protection, greater durability requiring fewer boosters and, compared to the current adjuvanted RSV vaccine, a lower incidence of side effects.

Iskra Reic, Executive Vice President, Vaccines & Immune Therapies, AstraZeneca, said: “This virus-like particle vaccine technology has the potential to transform prevention against severe infectious diseases, including RSV and hMPV. With the addition of Icosavax’s Phase III-ready lead asset to our late-stage pipeline, we will have a differentiated, advanced investigational vaccine, and a platform for further development of combination vaccines against respiratory viruses. This aligns with our strategy to deliver a portfolio of therapies to address high unmet needs in infectious diseases, and our ambition to protect the most vulnerable patients who have high risk of severe outcomes.”

Adam Simpson, Chief Executive officer, Icosavax said: “We are pleased to announce the proposed acquisition of Icosavax by AstraZeneca as we believe it offers the opportunity to accelerate, and expand access to, our potential first-in-class combination vaccine for older adults at risk of RSV and hMPV. We look forward to combining our skills and expertise in advancing the development of IVX-A12 with AstraZeneca’s decades of experience in RSV, resources, and capabilities in late-stage development.”

Alongside Icosavax’s proprietary technology and leadership in protein design, the acquisition is expected to also bring their expertise and capabilities in protein virus-like particle science and development to AstraZeneca to support the progression of IVX-A12 and other differentiated VLP vaccines for high-burden respiratory infections.

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