First-line of chronic lymphocytic leukaemia (Binet stage B or C) in patients for whom fludarabine combination chemotheraphy is not appropiate. Indolent non-Hodgkin’s lymphomas as monotheraphy in patients, who have progressed during or within 6 months following treatment with rituximab or a rituximab containing regimen. Follicular non-Hodgkin’s lymphoma as first line treatment in combination with rituximab.