Key clinical point: Grade 3B follicular lymphoma (G3BFL) has similar survival outcomes to grade 3A FL (G3AFL) but a superior prognosis than diffuse large B-cell lymphoma (DLBCL) in immunotherapy-treated patients.
Major finding : At a median follow-up of 5 years, the G3BFL vs DLBCL group had a significantly longer progression-free survival (PFS; hazard ratio [HR] 1.73; P = .001) and overall survival (OS; HR 2.19; P ≤ .001), whereas PFS (HR 1.04; P = .81) and OS (HR 1.04; P = .84) were similar between the G3BFL and G3AFL groups.
Study details: This multicenter study analyzed the data of 157 patients with G3BFL, 302 patients with G3AFL, and 548 patients with DLBCL treated with rituximab/obinutuzumab, cyclophosphamide, doxorubicin, vincristine, and prednisolone-like chemotherapy with or without radiotherapy or bendamustine-rituximab.
Disclosures: The study did not receive any funding. Some authors reported ties with various organizations.
Source: Barraclough A et al. Outcomes in grade 3B follicular lymphoma: an international study led by the Australasian Lymphoma Alliance. Haematologica. 2023 (Feb 23). Doi: 10.3324/haematol.2022.281375