Abstract
Patients with relapsed/refractory diffuse large B-cell lymphoma (DLBCL) after, or ineligible for, autologous stem cell transplantation (ASCT) have a dismal prognosis. This phase II study evaluated treatment with R-PECC (rituximab, prednisolone, etoposide, chlorambucil, lomustine), every 28 days for 4 cycles in 62 patients, followed by radio-immunotherapy consolidation with Y-90-ibritumomab tiuxetan in responsive patients. Primary endpoints were failure-free survival (FFS) and incidence of grade >= 3 adverse events from start of Y-90-ibritumomab tiuxetan. The overall response rate after R-PECC was 50%. Twenty-nine of 31 responsive patients proceeded to Y-90-ibritumomab tiuxetan. Five out of 15 partial remission patients converted to complete remission after Y-90-ibritumomab tiuxetan. One-year FFS and overall survival (OS) from start of Y-90-ibritumomab tiuxetan was 52% (95% confidence interval [CI], 33-68%) and 62% (95% CI, 42-77%), respectively. One-year FFS and OS from start of R-PECC was 28% (95% CI, 17-39%) and 49% (95% CI, 36-61%), respectively. Toxicities of R-PECC and Y-90-ibritumomab tiuxetan were mainly haematological. In conclusion, for relapsed DLBCL patients the largely oral R-PECC regimen achieves promising response rates, combined with an acceptable safety profile. Consolidation with Y-90-ibritumomab tiuxetan resulted in long-term response durations in approximately one third of the patients that received it.
Original language | English |
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Pages (from-to) | 347-355 |
Number of pages | 9 |
Journal | British Journal of Haematology |
Volume | 187 |
Issue number | 3 |
DOIs | |
Publication status | Published - Nov 2019 |
Keywords
- diffuse large B-cell lymphoma
- relapse
- Y-90-ibritumomab tiuxetan
- consolidation
- PECC
- B-CELL LYMPHOMA
- IBRITUMOMAB TIUXETAN
- ELDERLY-PATIENTS
- PLUS RITUXIMAB
- OPEN-LABEL
- TRIAL
- CHOP
- CHEMOTHERAPY
- MULTICENTER
- COMBINATION