Clinical Outcome of Patients Receiving Rituximab in Combination with Bendamustine in Indolent B-cell Lymphomas: A Single-center Institutional Study.

Indolent non-Hodgkin's lymphomas (NHLs) are a diverse category of malignancies characterized by a chronic relapsing-remitting disease course. In the modern era, patients usually receive a combination of bendamustine plus rituximab as the initial therapy, otherwise known as an R-Benda regimen. While clinical trials have demonstrated R-Benda to be superior to other regimens, our study aims to provide insight into real-world outcomes of R-Benda therapy. We conducted a retrospective study for January 2015-July 2022 among patients receiving R-Benda for indolent NHLs at the Aga Khan University Hospital, Karachi, Pakistan. All patients underwent pre- and post-treatment assessment through positron emission tomography scan and computed tomography (CT) imaging. The response to treatment was assessed, and the overall survival (OS) and progression-free survival (PFS) were assessed using a Kaplan-Meier survival analysis. We enrolled 118 patients, out of which the majority were elderly males (64%). The 2-year follow-up rate was 76.3% ( Our study demonstrated that patients on R-Benda had good clinical outcomes, with the vast majority living beyond 50 months. Moreover, 76.1% had no disease progression for the first 2 years. It adds to the existing body of literature that demonstrates that in real-world experience, the outcomes of R-Benda treatment are better than those reported by earlier randomized-control trials.

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