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Phase 1/2 study of alemtuzumab with dose-adjusted EPOCH in untreated aggressive T and NK cell lymphomas.

ABSTRACT: To evaluate the feasibility and clinical efficacy of the combination of alemtuzumab with dose-adjusted etoposide/cyclophosphamide/doxorubicin/vincristine/prednisone (DA-EPOCH) as upfront therapy for untreated aggressive T and NK cell lymphomas, a phase 1/2 trial was conducted. Thirty patients were treated with the study regimen, consisting of alemtuzumab on day 1 of a 21?day cycle with standard dosing of DA-EPOCH for 6-8 cycles. Alemtuzumab 30?mg IV was used for the phase 2 component. Of 30 treated patients, 17 had a complete response (CR) and eight had a partial response (83.3% overall response rate). The median overall survival and progression-free survival were 20.2 and 6.6 months, respectively. There were five treatment-related deaths on study mainly due to infectious complications, including one case each of disseminated toxoplasmosis and pneumonia and two cases of sepsis. Alemtuzumab with DA-EPOCH is of limited clinical utility due to unacceptable toxicity, despite the high rate of CR.

SUBMITTER: Roswarski J

PROVIDER: S-EPMC6620167 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature

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Phase 1/2 study of alemtuzumab with dose-adjusted EPOCH in untreated aggressive T and NK cell lymphomas.

Roswarski Joseph J Roschewski Mark M Melani Christopher C Pittaluga Stefania S Lucas Andrea A Steinberg Seth M SM Jaffe Elaine S ES Waldmann Thomas A TA Wilson Wyndham H WH

Leukemia & lymphoma 20190110 8

To evaluate the feasibility and clinical efficacy of the combination of alemtuzumab with dose-adjusted etoposide/cyclophosphamide/doxorubicin/vincristine/prednisone (DA-EPOCH) as upfront therapy for untreated aggressive T and NK cell lymphomas, a phase 1/2 trial was conducted. Thirty patients were treated with the study regimen, consisting of alemtuzumab on day 1 of a 21 day cycle with standard dosing of DA-EPOCH for 6-8 cycles. Alemtuzumab 30 mg IV was used for the phase 2 component. Of 30 trea ...[more]

PMID: 30626252

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Project description:BackgroundMYC gene rearrangement is present in approximately 10% of aggressive B-cell lymphomas, with half also harbouring a BCL2 gene rearrangement. Multiple retrospective studies of R-CHOP (rituximab plus cyclophosphamide, doxorubicin, vincristine, and prednisone or prednisolone) have shown a worse outcome in patients with MYC rearrangement (alone or with rearrangement of BCL2 or BCL6, or both) than in patients without MYC rearrangement, and suggest improved outcomes after more intensive treatment. We aimed to determine the outcome of dose-adjusted EPOCH-R (etoposide, prednisone, vincristine, cyclophosphamide, doxorubicin, and rituximab; DA-EPOCH-R), an intensive infusional treatment regimen, in untreated aggressive B-cell lymphoma with MYC rearrangement.MethodsWe present the final analysis of a prospective, multicentre, single-arm, phase 2 study of DA-EPOCH-R in patients with untreated aggressive B-cell lymphoma with MYC rearrangement. DA-EPOCH-R was scheduled to be administered with CNS prophylaxis for six cycles. Primary endpoints included event-free and overall survival. This study is registered with ClinicalTrials.gov (NCT01092182).Findings53 patients were enrolled, with median age of 61 years (range 29-80; IQR 50-70); 43 (81%) patients had stage III-IV disease and 26 (49%) had high-intermediate or high international prognostic index (IPI) scores. 19 patients had confirmed MYC rearrangement alone (single-hit) and 24 also had rearrangement of BCL2, BCL6, or both (double-hit), with similar characteristics between these two groups. After a median follow-up of 55·6 months (IQR 50·5-61·1), 48-month event-free survival was 71·0% (95% CI 56·5-81·4) and 48-month overall survival was 76·7% (95% CI 62·6-86·1) for all patients. Toxicity included grade 4 neutropenia in 160 (53%) of 301 cycles, grade 4 thrombocytopenia in 40 (13%) cycles, and any grade of fever with neutropenia in 56 (19%) cycles. There were three treatment-related deaths (all infections).InterpretationIn this study, DA-EPOCH-R produced durable remission in patients with MYC-rearranged aggressive B-cell lymphomas and should be considered for the treatment of these diseases.FundingCancer Trials Support Unit and Center for Cancer Research of the National Cancer Institute and Genentech.

Dataset Information

Phase 1/2 study of alemtuzumab with dose-adjusted EPOCH in untreated aggressive T and NK cell lymphomas.

Publications

Phase 1/2 study of alemtuzumab with dose-adjusted EPOCH in untreated aggressive T and NK cell lymphomas.

Similar Datasets

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