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News & Trends - Pharmaceuticals

Sanofi to acquire Principia Biopharma

Health Industry Hub | August 19, 2020 |

Pharma News: Sanofi is set to acquire Principia Biopharma, a late-stage biopharmaceutical company focused on developing treatments for immune-mediated diseases, for approximately $3.68 billion.

“This acquisition advances our ongoing R&D transformation to accelerate development of the most promising medicines that will address significant patient needs,” said Paul Hudson, Sanofi Chief Executive Officer. “The addition of multiple Bruton tyrosine kinase (BTK) inhibitors to our pipeline demonstrates our commitment to strategic product acquisitions in our priority therapeutic areas. Full ownership of our brain-penetrant BTK inhibitor ‘168 removes complexities for this priority development program and simplifies future commercialization.”

“The Phase 2b data in relapsing multiple sclerosis showed the strong potential of ‘168 to address disability and disease progression, and triggered the start of Phase 3 studies across the full spectrum of MS. Through this acquisition, we will be able to expand and accelerate development of BTK inhibitors across multiple indications. Both ‘168 and rilzabrutinib, have ‘pipeline in a product’ potential, and we look forward to unlocking their full treatment benefits across an array of diseases,” said John Reed, M.D., Ph.D., Global Head of Research & Development at Sanofi.

“Principia’s successful design and development of a whole portfolio of BTK inhibitors for immunology is aimed to transform the treatment for patients with immune-mediated diseases. By combining with Sanofi, we will bring significant resources to expand and accelerate the potential benefits of these therapies. The benefit of developing several BTK inhibitors will allow us to target specific organ systems for optimal patient benefit. The merger will provide global resources to get these novel therapies to patients faster,” said Martin Babler, President and CEO at Principia Biopharma.

Principia’s Bruton tyrosine kinase (BTK) inhibitors add to Sanofi’s efforts to accelerate and build a portfolio of the next generation of transformative treatments for autoimmune diseases. BTK is present in the signaling pathways of key innate and adaptive cell types of the immune system. Being able to block or disrupt these signalling processes can help in stopping inflammation and tissue destruction related to autoimmune diseases and target some of the underlying pathophysiology. 

  • BTK inhibitor ‘168: In a Phase 2b study in patients with multiple sclerosis, ‘168 reduced Gd-enhancing T1 hyperintense lesions by 85% compared to placebo. In June, Sanofi announced the first multiple sclerosis patient was enrolled in the Phase 3 program for the BTK inhibitor, comprising four pivotal clinical trials across the disease spectrum. The Principia acquisition will provide an opportunity to expand the development program to evaluate indications beyond central nervous system diseases.  
     
  • Rilzabrutinib: This oral BTK inhibitor is currently being evaluated in a Phase 3 program for patients with moderate to severe pemphigus, a rare, debilitating autoimmune disease that causes blistering of the skin and mucous membranes. A Phase 3 program for immune thrombocytopenia, a disease that causes high risk for bleeding events, is expected to be initiated by the end of 2020, assuming no COVID-19 related impact. The company also has an ongoing Phase 2 program for IgG4-related diseases, which is driven by chronic inflammation, immune cell infiltration, and fibrosis within organs that can lead to severe morbidity.
     
  • PRN473 Topical: This BTK inhibitor is a topical agent currently in Phase 1 trials and is being developed for immune-mediated diseases that could benefit from localised application to the skin. 

The Principia BTK inhibitor franchise is based on its proprietary Tailored Covalency platform that has generated potential best-in-class clinical candidates. The optimised target residence time has potential to deliver a desired efficacy with a stronger safety profile.

Sanofi expects to complete the acquisition in the fourth quarter of 2020. 


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