| Sumario: | Simple Summary: There have been many advances in therapeutic options for relapsed/refractory follicular lymphoma (R/R FL) in Canada and internationally. Herein, we provide a summary of the landmark studies leading to approval of different therapies and consensus recommendations for the management of R/R FL in Canada. Relapsed and/or refractory follicular lymphoma (R/R FL) remains a therapeutic challenge due to its chronic relapsing course and increasingly complex treatment landscape. Novel therapies, including immunomodulatory combinations, bispecific antibodies (BsAbs), Bruton tyrosine kinase inhibitors, and chimeric antigen receptor (CAR) T-cell therapies, have expanded treatment options and increased the complexity of treatment selection and sequencing. The Canadian Hematology Consensus Group (CHCG) convened a national panel of lymphoma experts to develop evidence-informed consensus recommendations for the management of adults with R/R FL in the Canadian context. Clinical questions informed a structured literature review of studies published through February 2026, including randomized trials, phase II studies, observational data, conference proceedings, and relevant guidelines. Recommendations were developed using a modified Delphi consensus process and graded using a framework adapted from the British Committee for Standards in Haematology. Key recommendations include repeat biopsy to exclude histologic transformation at relapse, individualized treatment selection based on timing of relapse and patient-specific factors, preferential use of lenalidomide-rituximab (LenR)-based triplet combinations in most second-line settings, and incorporation of BsAb and CAR T-cell therapy in third-line and later disease. These recommendations aim to provide practical guidance for Canadian clinicians managing patients with R/R FL.
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