Why Amgen (AMGN) Is Buying ChemoCentryx (CCXI) For $4 Billion In Cash

By Amit Chowdhry • Aug 4, 2022
  • Amgen (AMGN) is buying ChemoCentryx (CCXI) for $4 billion in cash. These are the details.

Amgen (AMGN) and ChemoCentryx (CCXI), a biopharmaceutical company focused on orally-administered therapeutics to treat autoimmune diseases, inflammatory disorders, and cancer, announced that the companies have entered into a definitive agreement under which Amgen will acquire ChemoCentryx for $52 per share in cash, representing an enterprise value of approximately $3.7 billion.

TAVNEOS is known as an orally administered selective complement component 5a receptor inhibitor. It was approved by the U.S. Food and Drug Administration in October 2021 as an adjunctive treatment for adult patients with severe active ANCA-associated vasculitis, specifical granulomatosis with polyangiitis (GPA) and microscopic polyangiitis (MPA) (the two main forms of ANCA-associated vasculitis), in combination with standard therapy. And ANCA-associated vasculitis is an umbrella term for a group of multi-system autoimmune diseases with small vessel inflammation. Inflamed vessels may rupture or become occluded giving rise to a broad array of clinical symptoms and signs related to a systemic inflammatory response which may result in profound injury and dysfunction in the kidneys, lungs, and other organs.

Amgen is a leader in inflammation and nephrology. And the company’s inflammation portfolio includes Otezla, ENBREL, TEZSPIRE, AMGEVITA (a biosimilar to HUMIRA), RIABNI (a biosimilar to Rituxan), and AVSOLA (a biosimilar to REMICADE). Amgen’s pipeline includes 4 innovative Phase 2 inflammation medicines – efavaleukin alpha for systemic lupus erythematosus and ulcerative colitis, ordesekimab for celiac disease, rocatinlimab for atopic dermatitis and rozibafusap alfa for systemic lupus erythematosus – as well as ABP 654, a biosimilar to STELARA that is in Phase 3 development. Amgen’s nephrology portfolio includes EPOGEN, Aranesp, Parsabiv and Sensipar.

The U.S. sales of TAVNEOS in the first quarter of 2022, the first full quarter of sales, were $5.4 million. And TAVNEOS is also approved in major markets outside the U.S., including the European Union and Japan. Vifor Fresenius Medical Care Renal Pharma Ltd. will retain exclusive rights to commercialize TAVNEOS outside the U.S., except in Japan where Kissei Pharmaceutical Co., Ltd. holds commercialization rights and Canada where Otsuka Canada Pharmaceutical holds commercialization rights.

Along with TAVNEOS, ChemoCentryx has 3 early-stage drug candidates that target chemoattractant receptors in other inflammatory diseases and an oral checkpoint inhibitor for cancer.

The deal has been unanimously approved by each company’s board of directors. And the deal is subject to ChemoCentryx stockholder approval, regulatory approvals and other customary closing conditions, and is expected to close in the fourth quarter of 2022.

PJT Partners acted as financial advisor to Amgen and Wachtell, Lipton, Rosen & Katz is serving as its legal advisor. Goldman Sachs & Co. LLC acted as financial advisor to ChemoCentryx, and Latham & Watkins LLP is serving as its legal advisor.


“The acquisition of ChemoCentryx represents a compelling opportunity for Amgen to add to our decades-long leadership in inflammation and nephrology with TAVNEOS, a transformative, first-in-class treatment for ANCA-associated vasculitis. We are excited to join in the TAVNEOS launch and help many more patients with this serious and sometimes life-threatening disease for which there remains significant unmet medical need. We also look forward to welcoming the highly skilled team from ChemoCentryx that shares our passion for serving patients suffering from serious diseases.”

— Robert Bradway, chairman and chief executive officer at Amgen

“A fierce commitment to improving human lives is the bond that unites Amgen and ChemoCentryx today. Last year, after 25 years of proud history, we at CCXI delivered on our founding promise with the approval of TAVNEOS for patients with anti-neutrophil cytoplasmic autoantibody-associated vasculitis (ANCA-associated vasculitis). It is an honor to now join Amgen’s great mission, and together begin a bright new era bringing landscape-shaping medicines like TAVNEOS to those who will benefit most.”

— Thomas Schall, Ph.D., president and chief executive officer of ChemoCentryx

Featured Photo Credit: Amgen