Biotechnology Japanese drugmaker Ono Pharmaceutical says that its Taiwanese subsidiary has received an approval of Velexbru (tirabrutinib hydrochloride) tablet 80mg, a Bruton’s tyrosine kinase (BTK) inhibitor, from the Taiwan Food and Drug Administration (TFDA) for the treatment of adult patients with recurrent or refractory B-cell primary central nervous system lymphoma. 21 February 2022