Biotechnology As researchers around the world scramble to repurpose existing drugs to find a solution to the current coronavirus pandemic, Calquence (acalabrutinib), a Bruton’s tyrosine kinase (BTK) inhibitor currently approved for certain hematological malignancies, was seen to reduce markers of inflammation and improved clinical outcomes of patients with severe COVID-19 disease, according to a study published in Science Immunology. 6 June 2020