TY - JOUR
T1 - A pilot study of epratuzumab and rituximab in combination with cyclophosphamide, doxorubicin, vincristine, and prednisone chemotherapy in patients with previously untreated, diffuse large B-cell lymphoma
AU - Micallef, Ivana N.M.
AU - Kahl, Brad S.
AU - Maurer, Matthew J.
AU - Dogan, Ahmet
AU - Ansell, Stephen M.
AU - Colgan, Joseph P.
AU - Geyer, Susan
AU - Inwards, David J.
AU - White, William L.
AU - Habermann, Thomas M.
PY - 2006/12/15
Y1 - 2006/12/15
N2 - BACKGROUND. In this pilot study, the authors assessed the feasibility of combination epratuzumab and rituximab plus cyclophosphamide, doxorubicin, vincristine, and prednisone (ER-CHOP) in patients with newly diagnosed diffuse large B-cell lymphoma (DLBCL). METHODS. Patients received chemotherapy on the following schedule: epratuzumab 360 mg/m2, rituximab 375 mg/m 2, and standard-dose CHOP every 3 weeks for 6 to 8 cycles. The primary endpoint was the incidence of grade 4 neutropenia and grade 3 or 4 antibody infusional toxicity. Secondary endpoints were the complete response (CR) rate, the overall response rate (ORR), and progression-free survival (PFS). Weekly blood counts were obtained to monitor hematologic toxicity. Fifteen patients were enrolled and treated. Baseline patient characteristics included a median age of 63 years (range, 42-78 years), 60% of patients had stage III or IV disease, 7 patients had a low-risk International Prognostic Index (IPI) score (0 or 1), 7 patients had an intermediate-risk IPI score (2 or 3), and 1 patient was high risk. RESULTS. Grade 3 or 4 neutropenia was observed in 14 patients (93%) or in 28 of 92 treatment cycles (30%). Three patients developed grade >3 infection or fever. Eleven patients (73%) required dose reductions. No grade 3 antibody infusion-related toxicity was reported. Thirteen of 15 patients responded (ORR, 87%,), including 10 CRs (67%), 3 partial responses (20%), 1 patient with stable disease, and 1 patient with disease progression. At a median follow-up of 30 months, 13 of 15 patients remained alive. The 1-year PFS and OS rates were 93% and 100%, respectively; and the 2-year PFS and OS rates were 86% and 86%, respectively. CONCLUSIONS. ER-CHOP every 21 days was feasible as treatment for newly diagnosed patients with DLBCL. A Phase II multicenter study is underway.
AB - BACKGROUND. In this pilot study, the authors assessed the feasibility of combination epratuzumab and rituximab plus cyclophosphamide, doxorubicin, vincristine, and prednisone (ER-CHOP) in patients with newly diagnosed diffuse large B-cell lymphoma (DLBCL). METHODS. Patients received chemotherapy on the following schedule: epratuzumab 360 mg/m2, rituximab 375 mg/m 2, and standard-dose CHOP every 3 weeks for 6 to 8 cycles. The primary endpoint was the incidence of grade 4 neutropenia and grade 3 or 4 antibody infusional toxicity. Secondary endpoints were the complete response (CR) rate, the overall response rate (ORR), and progression-free survival (PFS). Weekly blood counts were obtained to monitor hematologic toxicity. Fifteen patients were enrolled and treated. Baseline patient characteristics included a median age of 63 years (range, 42-78 years), 60% of patients had stage III or IV disease, 7 patients had a low-risk International Prognostic Index (IPI) score (0 or 1), 7 patients had an intermediate-risk IPI score (2 or 3), and 1 patient was high risk. RESULTS. Grade 3 or 4 neutropenia was observed in 14 patients (93%) or in 28 of 92 treatment cycles (30%). Three patients developed grade >3 infection or fever. Eleven patients (73%) required dose reductions. No grade 3 antibody infusion-related toxicity was reported. Thirteen of 15 patients responded (ORR, 87%,), including 10 CRs (67%), 3 partial responses (20%), 1 patient with stable disease, and 1 patient with disease progression. At a median follow-up of 30 months, 13 of 15 patients remained alive. The 1-year PFS and OS rates were 93% and 100%, respectively; and the 2-year PFS and OS rates were 86% and 86%, respectively. CONCLUSIONS. ER-CHOP every 21 days was feasible as treatment for newly diagnosed patients with DLBCL. A Phase II multicenter study is underway.
KW - DLBCL
KW - ER-CHOP
KW - Epratuzumab
KW - International Prognostic Index
KW - non-Hodgkin Lymphoma
UR - http://www.scopus.com/inward/record.url?scp=33845597766&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33845597766&partnerID=8YFLogxK
U2 - 10.1002/cncr.22342
DO - 10.1002/cncr.22342
M3 - Article
C2 - 17099879
AN - SCOPUS:33845597766
SN - 0008-543X
VL - 107
SP - 2826
EP - 2832
JO - Cancer
JF - Cancer
IS - 12
ER -