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CSL Behring and SAB Biotherapeutics Join Forces to Deliver New Potential COVID-19 Therapeutic

COVID-19 treatment candidate on-track for clinical evaluation as early as summer

coronavirus impacts lungs

Global biotherapeutics leader, CSL Behring and innovative human antibody development company SAB Biotherapeutics (SAB) announced today their partnership to combat the coronavirus pandemic with the rapid development of SAB-185, a COVID-19 therapeutic candidate on track for clinical evaluation by early summer. The partnership joins the forces of CSL Behring’s leading protein science capabilities with SAB’s novel immunotherapy platform capable of rapidly developing and producing natural, highly-targeted, high-potency, fully human polyclonal antibodies without the need for blood plasma donations from recovered patients.

The therapeutic candidate, SAB-185, is generated from SAB’s proprietary platform producing large volumes of human polyclonal antibodies targeted specifically to SARS-CoV-2, the virus that causes COVID-19. Driven by advanced genetic engineering and antibody science, SAB’s novel approach, leveraging genetically engineered cattle to produce fully human antibodies, enables a scalable and reliable production of targeted, higher potency neutralizing antibody product than has been previously possible. SAB’s approach has expedited the rapid development of a novel immunotherapy for COVID-19 deploying the same natural immune response to fight the disease as recovered patients, but with a much higher concentration of targeted antibodies.

"COVID-19 is a nearly unprecedented public health crisis,” said CSL Behring’s Executive Vice President and Head of R&D Bill Mezzanotte, M.D. “That’s why we’re combining our leading capabilities in plasma product development and immunology with external collaborators to help find multiple, rapid solutions."


Similar to the Hyperimmune Alliance, collaboration between companies, industries and countries also here is smooth and cooperative. The alliance recently launched its website at

About CSL Behring
CSL Behring is a global biotherapeutics leader driven by its promise to save lives. Focused on serving patients’ needs by using the latest technologies, we develop and deliver innovative therapies that are used to treat coagulation disorders, primary immune deficiencies, hereditary angioedema, inherited respiratory disease, and neurological disorders. The company’s products are also used in cardiac surgery, burn treatment and to prevent hemolytic disease of the newborn. CSL Behring operates one of the world’s largest plasma collection networks, CSL Plasma. The parent company, CSL Limited (ASX:CSL;USOTC:CSLLY), headquartered in Melbourne, Australia, employs more than 26,000 people, and delivers its life-saving therapies to people in more than 70 countries.


About SAB Biotherapeutics, Inc.
SAB Biotherapeutics, Inc. (SAB), headquartered in Sioux Falls, S.D. is a clinical-stage, biopharmaceutical development company advancing a new class of immunotherapies leveraging fully human polyclonal antibodies. Utilizing some of the most complex genetic engineering and antibody science in the world, SAB has developed the only platform that can rapidly produce natural, highly targeted, high-potency, immunotherapies at commercial scale. The company is advancing programs in autoimmunity, infectious diseases, inflammation and exploratory oncology. SAB is rapidly progressing on a new therapeutic for COVID-19, SAB-185, a fully human polyclonal antibodies targeted to SARS-CoV-2 without using human donors. SAB-185 is expected to be ready for evaluation as early as summer 2020. The company was also recently awarded a $27 million contract from the U.S. Department of Defense (DoD) to leverage its unique capabilities as part of a Rapid Response Antibody Program, valued at up to $27 million. For more information visit:


Media contacts:
SAB Biotherapeutics
Melissa Ullerich 
+1 605.679.4609

" COVID-19 is a nearly unprecedented public health crisis. That’s why we’re combining our leading capabilities in plasma product development and immunology with external collaborators to help find multiple, rapid solutions. "

Bill Mezzanotte, EVP and Head of R&D at CSL Behring