Treatment Protocols
Treatment recommendations for patients with diffuse large B-cell lymphoma (DLBCL) begin with evaluating the extent of the disease, performance status of the patient, and histologic subtypes. Treatment of localized and advanced disease varies considerably.
Below is a general treatment algorithm for DLBCL, followed by treatment recommendations for different stages of disease and for relapsed or refractory disease. [1, 2, 3]
General DLBCL treatment algorithm
Diagnosis of DLBCL:
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Staging/IPI score/bulky disease
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Assess end-organ function
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Establish therapy endpoints (ie, cure vs palliation)
Stage I/II (nonbulky) disease:
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Rituximab (R) plus cyclophosphamide, vincristine, doxorubicin, and prednisone (CHOP) for 3-4 cycles
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Follow with involved field radiation therapy (IFRT)
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If positron emission tomography (PET) is positive after 4 cycles, administer 2 more cycles before IFRT
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If relapse occurs, see step 4
Advanced-stage (stage III-IV) or bulky stage II disease:
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R+CHOP every 21 d for 6 cycles, with or without IFRT for bulky sites
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Prophylactic intrathecal (IT) chemotherapy in selected cases or
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Clinical trial with correlative science studies (eg, R+CHOP-like and other biological agents or small molecules and/or other novel monoclonal antibodies [mAbs] or immunoconjugates)
In cases of relapse:
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Staging/IPI score/bulky disease
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Assess end-organ function
In relapse patients, collect lymphoid tissue and store for future analysis or current research evaluating gene profiling, proteomic analysis, biomarkers of disease (MUM-1, Bcl-6, and CD10), and preclinical studies with novel agents
Relapse patients eligible for high-dose chemotherapy (HDC) and autologous stem cell transplantation (ASCT):
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Platinum-based salvage chemotherapy, [4] including rituximab, ifosfamide, carboplatin, and etoposide (RICE) for 2-3 cycles or
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Rituximab plus cisplatin, cytarabine, and dexamethasone (DHAP) for 2-3 cycles
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If partial or complete response is achieved, use HDC and ASCT
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Observation or clinical trials evaluating agents in the maintenance setting may be recommended
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If patient relapses, consider clinical trials evaluating novel agents (eg, bortezomib, lenalidomide, or immunoconjugates) or
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Radioimmunotherapy (RIT)
Relapse patients not eligible for HDC and ASCT:
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Palliative chemotherapy (gemcitabine-based therapyClinical trials evaluating novel agents (eg, bortezomib, lenalidomide, or immunoconjugates) or
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RIT
Treatment recommendations for early-stage disease
Stage I and selected stage II:
Patients without adverse risk factors present:
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R+CHOP: Combined therapy with rituximab 375 mg/m2 IV on day 1 plus cyclophosphamide 750 mg/m2 IV on day 1 or 3 plus doxorubicin 50 mg/m2 IV on day 1 or 3 plus vincristine 1.4 mg/m2 (maximum dose, 2 mg) IV on day 1 or 3 plus prednisone 40 mg/m2 PO on days 1-5 or 3-8; every 21d for 3 cycles [5]
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Radiographic studies including functional imaging (eg, PET scan) to document response to treatment should be done before initiation of IFRT and/or at the end of therapy
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Always confirm residual PET abnormalities with biopsy before modifying therapy
Patients with adverse risk factors present:
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R+CHOP: Combined therapy with rituximab plus cyclophosphamide 750 mg/m2 IV on day 1 or 3 plus doxorubicin 50 mg/m2 IV on day 1 or 3 plus vincristine 1.4 mg/m2 (maximum dose, 2 mg) IV on day 1 or 3 plus prednisone 40 mg/m2 PO on days 1-5 or 3-8; every 21d for 3 cycles followed by IFRT [5] or
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R+CHOP: Rituximab 375 mg/m2 IV on day 1 plus cyclophosphamide 750 mg/m2 IV on day 1 or 3 plus doxorubicin 50 mg/m2 IV on day 1 or 3 plus vincristine 1.4 mg/m2 (maximum dose, 2 mg) IV on day 1 or 3 plus prednisone 40 mg/m2 PO on days 1-5 or 3-8; every 21d for 6 cycles with or without IFRT [6]
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Radiographic studies including functional imaging (eg, PET scan) to document response to treatment should be done before initiation of IFRT and/or at the end of therapy
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Always confirm residual PET abnormalities with biopsy before modifying therapy
Treatment recommendations for advanced-stage disease
Stages III-IV:
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Consider radiation therapy to bulky sites of disease at the end of chemoimmunotherapy
Prophylactic intrathecal chemotherapy (selected cases)
Prophylactic IT chemotherapy with low-dose methotrexate (eg, 12 mg) should be routinely administered to DLBCL patients with the following characteristics [8, 9] :
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More than one extranodal site of disease
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Testicular or breast involvement, regardless of stage
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Lymphoblastic variants
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Oropharyngeal or paraspinal sites of involvement
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Bone marrow involvement
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Concomitant HIV infection
Treatment recommendations for relapsed or refractory disease
Patients eligible for HDC-ASCT (treatment goal = cure):
A vast number of regimens are used in the treatment of patients with relapsed or refractory DLBCL. These are primarily based on chemotherapy agents that are not cross-resistant to those used in the front-line setting, with or without rituximab. The goal of salvage regimens is to achieve maximum tumor burden cytoreduction in preparation for HDC with ASCT (HDC-ASCT). [10]
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RICE: Rituximab 375 mg/m2 day 1 plus ifosfamide 5 g/m2 on day 2 plus carboplatin AUC 5 plus etoposide 100 mg/m2 daily on days 1-3; every 14 d [11] (see also the Carboplatin AUC Dose Calculation [Calvert formula] calculator) or
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ICE: Ifosfamide 5 g/m2 on day 2 plus carboplatin AUC 5 plus etoposide 100 mg/ m2 daily on days 1-3; every 14d [12] or
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GDP: Gemcitabine 1000 mg/m2 on days 1 and 8 plus dexamethasone 40 mg on days 1-4 plus cisplatin 75 mg/m2 on day 1; every 21d [13] or
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GEM-P: Gemcitabine 1000 mg/m2 on days 1 and 8 plus methylprednisolone 1000 mg/m2 on days 1-5 plus cisplatin 100 mg/m2 on day 15; every 28 d [14, 15] or
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R+GEMOX: Rituximab 375 mg/m2 plus gemcitabine 1000 mg/m2 plus oxaliplatin 100 mg/m2 on day 1; every 14 d [17] or
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ESHAP: Etoposide 40 mg/m2/day plus methylprednisolone 500 mg/day plus cisplatin 25 mg/m2/day by continuous IV infusion (CIVI) for 4 d plus cytarabine (Ara-C) 2 g/m2 on day 5 [18] or
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DHAP: Dexamethasone 40 mg on days 1-4 plus cytarabine 2 g/m2 every 12h for 2 doses on day 2 plus cisplatin 100 mg/m2 on day 1; every 21d [19] or
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R-DHAP: Dexamethasone 40 mg on days 1-4 plus cytarabine 2 g/m2 every 12h for 2 doses on day 2 plus cisplatin 100 mg/m2 on day 3; every 21 d plus rituximab 375 mg/m2 weekly for 4 wk starting on day 1 of first cycle [20] or
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R-DHAP-VIM-DHAP: Cisplatin 100 mg/m2 on day 1 by continuous IV infusion plus cytarabine 2 g/m2 every 12 h for 2 doses on day 2 plus dexamethasone 40 mg/day on days 1-4; VIM = etoposide 90 mg/m2 on days 1, 3, and 5 plus ifosfamide 1200 mg/m2 IV on days 1-5 plus methotrexate 30 mg/m2 IV on days 1 and 5; rituximab 375 mg/m2 is administered on day 5 of the DHAP courses or on day 6 of the VIM course [21] or
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DHAP-VIM-DHAP: Cisplatin 100 mg/m2 on day 1 by continuous IV infusion plus cytarabine 2 g/m2 every 12 h for 2 doses on day 2 plus dexamethasone 40 mg/day on days 1-4; VIM = etoposide 90 mg/m2 on days 1, 3, and 5 plus ifosfamide 1200 mg/m2 IV on days 1-5 plus methotrexate 30 mg/m2 IV on days 1 and 5 [21]
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Polatuzumab vedotin 1.8 mg/kg IV on Day 1 plus rituximab 375 mg/m2 IV on Day 1 plus bendamustine 90 mg/m2/day on Days 1 and 2 every 21d for 6 cycles; may administer polatuzumab, bendamustine, and rituximab in any order on Day 1 of each cycle [22]
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Loncastuximab 0.15 mg/kg IV q3Weeks × 2 cycles, then 0.075 mg/kg IV q3Weeks thereafter [23]
CAR T-cell therapy (treatment goal = cure):
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Tisagenlecleucel 0.6-6 × 10 8 CAR-positive viable T cells/kg IV infusion at rate of 10-20 mL/min; administer 2-11 days after completing lymphodepleting chemotherapy [24, 25, 26]
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Axicabtagene ciloleucel 2 × 10 6 CAR-positive viable T cells/kg body weight, not to exceed 2 × 10 8 CAR-positive viable T cells; infuse IV over 30 min 3 days after completing lymphodepleting chemotherapy [27]
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Lisocabtagene maraleucel 50-110 × 10 6 CAR-positive viable T-cells/kg; administer 2-7 days after completing lymphodepleting chemotherapy [28]
Patients not eligible for HDC-ASCT (treatment goal = palliation):
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GV: Gemcitabine 1000 mg/m2 plus vinorelbine 30 mg/m2 on days 1 and 8; every 21 d [29] or
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GVP: Gemcitabine 1000 mg/m2 plus vinorelbine 30 mg/m2 on days 1 and 8 plus prednisone 100 mg on days 1-8; every 21d [30] or
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ViGePP: Vinorelbine 25 mg/m2 plus gemcitabine 800 mg/m2 on days 1 and 8 plus procarbazine 100 mg/m2 on days 1-7 plus prednisone 60 mg/m2 on days 1-15; every 28 d [31] or
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IEV: Ifosfamide 2500 mg/m2 plus etoposide 150 mg/m2 on days 1-3 plus epirubicin 100 mg/m2 on day 1; every 21 d [31, 32] or
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MINE: Ifosfamide 2660 mg/m2/day on days 1-3 plus etoposide 300 mg/m2 in 1 dose on days 1-3; followed by ifosfamide 3300mg/m2 on days 1-3 plus mitoxantrone 20 mg/m2 on day 1 if less than complete response is achieved [33] or
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IVAD: Ifosfamide 1500 mg/m2plus etoposide 100 mg/m2plus cytarabine 100 mg/m2plus dexamethasone 40 mg on days 1-5; every 21d [34] or
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EPOCH: Doxorubicin 10 mg/m2 plus etoposide 50 mg/m2 plus vincristine 0.4 mg/m2 by continuous IV infusion on days 2-4 plus cyclophosphamide 750 mg/m2 on day 6 plus prednisone 60 mg/m2 on days 1-6; every 21 d [37] or
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R-EPOCH: Rituximab 375 mg/m2 IV on day 1 plus doxorubicin 15 mg/m2 plus etoposide 65 mg/m2 plus vincristine 0.5 mg/day by continuous IV infusion on days 2-4 plus cyclophosphamide 750 mg/m2 on day 5 plus prednisone 60 mg/m2 on days 1-14; every 21d [38] or
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Lenalidomide 25 mg PO on days 1-21; every 28 d until progression or unacceptable toxicity [39]
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Lenalidomide 25 mg PO on days 1-21; every 28 days for a maximum of 12 cycles plus tafasitamab 12 mg/kg IV (actual body weight) on Days 1, 4, 8, 15, and 22 (Cycle 1), then Days 1,8,15, and 22 (Cycles 2-3), then Days 1 and 15 (Cycle 4 and thereafter); continue as monotherapy until disease progression or unacceptable toxicity [40]
Patients with relapsed or refractoryDLBCL, not otherwise specified, including DLBCL arising from follicular lymphoma, after at least 2 lines of systemic therapy:
Patients with relapsed or refractory DLBCL, not otherwise specified, including DLBCL not otherwise specified, DLBCL arising from low-grade lymphoma, and high-grade B-cell lymphoma:
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Loncastuximab 0.15 mg/kg IV q3Weeks x 2 cycles, then 0.075 mg/kg IV q3Weeks thereafter [23]