SECURA BIO LIMITED

A Study of Duvelisib Versus the Anti-cancer Drugs Gemcitabine or Bendamustine in Patients With T Cell lymphoma (a type of blood cancer), which originated from a certain type of T cells Called T Follicular Helper (TFH) cells (Nodal T Cell Lymphoma with T Follicular Helper [TFH] phenotype), that has returned (relapsed) or that is resistant to other treatments (refractory)