The PI3K deltainhibitor idelalisib (Zydelig) and the BTK inhibitor ibrutinib (Imbruvica) have shown promise for patients with relapsed follicular lymphoma.
Ibrutinib (ibr), a first-in-class, once-daily, oral, covalent inhibitor of Bruton's tyrosine kinase (BTK), is rapidly eliminated from plasma after oral administration (Advani, JCO 2013).