Background Diffuse large B-cell lymphoma (DLBCL) is the most common subtype of non-Hodgkin lymphoma. It is challenging to deliver standard rituximab plus cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP) chemotherapy in the very elderly or elderly with comorbidities because of age-related changes in metabolism and performance.
Objectives To describe outcomes of a unique approach to the delivery of standard R-CHOP chemotherapy in split-doses for the treatment of elderly DLBCL patients.
Methods We performed a single center, retrospective analysis of all patients with DLBCL treated with split-dose R-CHOP during January 2007-April 2015. The patients received R-CHOP at a 50% dose reduction on days 1 and 15 of each 28-day cycle (split dose), with full dose rituximab on day 1 for up to 6 cycles. The total amount of chemotherapy delivered during each 28-day cycle of split-dose R-CHOP was equivalent to the cumulative dose in each 21-day cycle of standard R-CHOP.
Results We identified 22 patients who had been treated with split-dose R-CHOP (median age, 81 years). 10 patients had a Charlson Comorbidity Index score of 2 or more, and 13 were aged 80 or older. 12 patients completed their prescribed treatments, and 10 required further de-escalation or early termination owing to toxicity. All of the patients who completed therapy were in a complete remission at the end of treatment. The median overall survival for the entire cohort was 47 months, and median progression-free survival was 43 months.
Limitations Retrospective, single institution study, small cohort Conclusions Split-dose R-CHOP allowed administration of curative-intent therapy in an elderly population with encouraging outcomes.
Conclusions Split-dose R-CHOP allowed administration of curative-intent therapy in an elderly population with encouraging outcomes.
Funding/sponsorship Cancer Center Research Training Program, NCI 5-T32 CA09615-25 (fellowship funding for Dr Shah).
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