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On 2 April 2019, Nancy Bartlett from Washington University School of Medicine, St Louis, MO, USA and colleagues, published in the Journal of Clinical Oncology results from a phase III clinical trial that compared the efficacy of dose-adjusted etoposide, prednisone, vincristine, cyclophosphamide, doxorubicin, and rituximab (DA-EPOCH-R) to rituximab plus cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP) for diffuse large B-cell lymphoma (DLBCL).
In this randomized, Alliance/CALGB 50303 study (NCT00118209), the efficacy and safety of DA-EPOCH-R and R-CHOP were compared as frontline treatment for patients with DLBCL. The primary endpoint was progression-free survival (PFS), while secondary endpoints included response rates, overall survival (OS), and safety.
|
DA-EPOCH-R arm |
R-CHOP arm |
---|---|---|
Eastern Cooperative Oncology Group (ECOG) performance status: |
|
|
ECOG 0 |
46.9% |
40.6% |
ECOG 1 |
39.8% |
47.8% |
ECOG 2 |
13.3% |
11.6% |
Missing |
n = 0 |
n = 1 |
International Prognostic Index (IPI) risk groups: |
|
|
Low |
25.1% |
26.6% |
Low-intermediate |
35.3% |
38.6% |
High-intermediate |
26.0% |
24.9% |
High |
13.6% |
10.0% |
Missing |
n = 6 |
n = 9 |
|
DA-EPOCH-R arm |
R-CHOP arm |
Full cohort |
---|---|---|---|
Two-year PFS rate |
78.9% |
75.5% |
77.1% (95% CI, 73.5−81) |
Five-year PFS rate |
68.0% |
66.0% |
67.1% (95% CI, 62.8−71.6) |
Five-year OS rate |
77.5% |
78.5% |
78.0% (95% CI, 74.3−81.9) |
Overall response rate |
86.7% |
88.0% |
- |
Complete response (CR) and unconfirmed CR (CRu) rate |
58.5% |
59.6% |
- |
|
P = 0.67 |
- |
DA-EPOCH-R was associated with greater toxicity and did not improve PFS, OS or response rate when compared to R-CHOP, as frontline treatment in naïve patients with DLBCL or PMBCL.
References
Your opinion matters
Which of the following would most increase your confidence in referring patients with R/R large B-cell lymphoma for CAR T-cell therapy?