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Phase II Randomized Study With R-DHAP +/- Bortezomib as Induction Therapy in Relapsed/Refractory Diffuse Large B-cell Lymphoma (DLBCL) Patients Eligible to Transplantation. BR-DHAP Versus R-DHAP. (FIL_VERAL12)

Primary Purpose

Diffuse Large B-cell Lymphoma Refractory, Diffuse Large B-cell Lymphoma Recurrent

Status
Completed
Phase
Phase 2
Locations
Italy
Study Type
Interventional
Intervention
R-DHAP
BR-DHAP
Sponsored by
Fondazione Italiana Linfomi - ETS
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Diffuse Large B-cell Lymphoma Refractory focused on measuring Diffuse Large B-cell Lymphoma (DLBCL), Bortezomib

Eligibility Criteria

18 Years - 65 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  1. Age 18-65
  2. Relapsed/refractory disease after receiving one line of standard chemoimmunotherapy (R-CHOP, GA-CHOP, R-CHOP like)
  3. Diffuse Large B-cell Lymphoma at relapse. Patient has to be re-biopsied prior to study entry. If this is harmful for the patient, the patient can be enrolled if archivial tumor sample and block from first diagnosis are available.
  4. No prior Bortezomib therapy
  5. Measurable and/or evaluable disease
  6. Any Ann Arbor stage and IPI group at relapse
  7. Performance status < 2 according to ECOG scale unless due to lymphoma
  8. No Central Nervous System (CNS) disease (meningeal and/or brain involvement by lymphoma)
  9. Adequate hematological counts: ANC > 1.5 x 109/L, Hgb > 9 g/dl (transfusion independent), Platelet count > 75 x 109/L (transfusion independent), with the exception of cytopenia due to lymphoma bone marrow involvement
  10. HIV negativity, HCV negativity, HBV negativity or patients with HBcAb +, HBsAg -, HBs Ab+/- with HBV-DNA negativity (in these patients Lamivudine prophylaxis is mandatory)
  11. Normal liver function (ALP, AST, ALT, GGT, conjugated bilirubin total < 2 x ULN) if not related to lymphoma
  12. Normal kidney function (creatinine clearance > 45 ml/min)
  13. Cardiac ejection fraction > 50% (MUGA scan or echocardiography)
  14. Normal lung function
  15. Absence of active opportunistic infections
  16. Non peripheral neuropathy or active neurological non neoplastic disease of CNS
  17. Non major surgical intervention prior 3 months to randomization if not due to lymphoma and/or no other disease life-threatening that can compromise chemotherapy treatment
  18. Disease free of prior malignancies other than lymphoma for > 3 years with exception of currently treated squamous cell and basal cell carcinoma of the skin or carcinoma in situ of the cervix or breast
  19. Life expectancy > 6 months
  20. No psychiatric illness that precludes understanding concepts of the trial or signing informed consent
  21. Written informed consent
  22. Women must be:

    • postmenopausal for at least 1 year (must not have had a natural menses for at least 12 months)
    • surgically sterile (have had a hysterectomy or bilateral oophorectomy, tubal ligation, or otherwise be incapable of pregnancy),
    • abstinent (at the discretion of the investigator/per local regulations), or
    • if sexually active, be practicing a highly effective method of birth control (eg, prescription oral contraceptives, contraceptive injections, contraceptive patch, intrauterine device, double-barrier method (eg, condoms, diaphragm, or cervical cap, with spermicidal foam, cream, or gel, male partner sterilization) as local regulations permit, before entry, and must agree to continue to use the same method of contraception throughout the study. They must also be prepared to continue birth control measures for at least 12 months after terminating treatment.
  23. Women of childbearing potential must have a negative serum or urine beta-human chorionic gonadotropin (beta-hCG) pregnancy test at screening
  24. Men must agree to use an acceptable method of contraception (for themselves or female partners as listed above) for the duration of the study. Men must agree to use a double barrier method of birth control and to not donate sperm during the study and for 3 months after receiving the last dose of study drug.

Exclusion criteria:

  1. Diagnosis of Lymphoblastic Lymphoma, Burkitt Lymphoma, Non Hodgkin Lymphoma CD20 negative, Mantle Cell Lymphoma, Follicular Lymphoma g I-II-IIIa-IIIb, Primary Mediastinal Lymphoma
  2. Age > 65 years
  3. Patients ineligible to high-dose chemotherapy
  4. Performance status > 2 according to ECOG scale if not due to lymphoma
  5. Patient has known or suspected hypersensitivity or intolerance to Rituximab
  6. Patient has received an experimental drug or used an experimental medical device within 4 weeks before the planned start of treatment. Concurrent participation in non-treatment studies is allowed, if it will not interfere with participation in this study.
  7. CNS disease (meningeal and/or brain involvement by lymphoma)
  8. History of clinically relevant liver or renal insufficiency; significant cardiac, vascular, pulmonary, gastrointestinal, endocrine, neurologic, rheumatologic, hematologic, psychiatric, or metabolic disturbances
  9. Uncontrolled diabetes (if receiving antidiabetic agents, subjects must be on a stable dose for at least 3 months before first dose of study drug
  10. Uncontrolled or severe cardiovascular disease including myocardial infarction within six months of enrollment, New York Heart Association (NYHA) Class III or IV heart failure, uncontrolled angina, clinically significant pericardial disease, or cardiac amyloidosis
  11. Cardiac ejection fraction < 50% (MUGA scan or echocardiography)
  12. Creatinine clearance < 45 ml/min
  13. Presence of major neurological disorders
  14. HIV positivity, HCV positivity, HBV positivity with the exception of patients with HBcAb +, HbsAg -, HBs Ab+/- with HBV-DNA negative
  15. Active opportunistic infection
  16. Major surgical intervention prior 3 months to randomization if not due to lymphoma and/or other disease life-threatening that can compromise chemotherapy treatment
  17. Prior malignancies other than lymphoma in the last 3 years with exception of currently treated squamous cell and basal cell carcinoma of the skin or carcinoma in situ of the cervix or breast
  18. Life expectancy < 6 months
  19. Any other coexisting medical or psychological condition that would preclude participation in the study or compromise ability to give informed consent.
  20. If female, the patient is pregnant or breast-feeding.

Sites / Locations

  • Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori-Ematologia
  • Clinica Humanitas
  • ASST Grande Ospedale Metropolitano Niguarda - SC Ematologia
  • CRO Aviano
  • ASST Valle Olona
  • A.O. SS. Antonio e Biagio e C. Arrigo
  • Clinica di ematologia AOU Umberto I Ospedali Riuniti
  • ASST Spedali Civili di Brescia - Ematologia
  • Ospedale Businco - SC Ematologia e CTMO
  • Ematologia 1 Ospedale S. Martino
  • SC Ematologia - Trapianto di midollo osseo Fond. IRCCS Istituto Nazionale Tumori
  • SCDU Ematologia - Università del Piemonte Orientale
  • Ospedale S. Antonio
  • U.O. Complessa di Ematologia Ospedale di Parma
  • Ospedale Civile Guglielmo da Saliceto
  • Osp. S. Maria delle Croci
  • Grande Ospedale Metropolitano Bianchi Melacrino Morelli - Ematologia
  • AO Arcispedale S.Maria Nuova Ematologia
  • Osp. degli Infermi Divisione di Oncologia
  • A.O. Universitaria S. Andrea
  • SC Oncoematologia con autotrapianto AO Santa Maria
  • AOU Citta della Salute e della Scienza di Torino - Ematologia Universitaria
  • AOU Citta della Salute e della Scienza di Torino-SC Ematologia
  • Azienda Ospedaliero - Universitaria di Udine

Arms of the Study

Arm 1

Arm 2

Arm Type

Active Comparator

Experimental

Arm Label

R-DHAP

BR-DHAP

Arm Description

R-DHAP x 2, restaging, mobilization and harvest of peripheral stem cell + R-DHAP x 2, restaging with PET evaluation

Bortezomib + R-DHAP x 2, restaging, mobilization and harvest of peripheral stem cell + Bortezomib + R-DHAP x 2, restaging with PET evaluation

Outcomes

Primary Outcome Measures

Complete Response (CR) Rate
Proportion of CR according to the Cheson 2007 response criteria, evaluated by PET scan

Secondary Outcome Measures

Overall Response Rate (ORR)
ORR at the end of the induction treatment is defined as Complete Response (CR) or Partial Response according to the Cheson 2007 response criteria, evaluated by PET scan
Overall Survival (OS)
OS will be defined as the time between the date of randomization and the date of death from any cause
Number of Patients With Treatment-Related Adverse Events (AEs)/Serious Adverse Events (SAEs) as a Measure of Safety
Incidence of grade 3 or higher Toxicity measured by CTCAE v.4 during therapy
Mobilizing potential
Amount of CD34+ stem cell collected/Kg
Number of Patients completing ASCT
Proportion of randomized patients successfully completing ASCT

Full Information

First Posted
March 5, 2013
Last Updated
June 6, 2022
Sponsor
Fondazione Italiana Linfomi - ETS
Collaborators
Janssen Pharmaceutica, Janssen-Cilag Ltd., Centro di Riferimento per l'Epidemiologia e la Prev. Oncologica Piemonte
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1. Study Identification

Unique Protocol Identification Number
NCT01805557
Brief Title
Phase II Randomized Study With R-DHAP +/- Bortezomib as Induction Therapy in Relapsed/Refractory Diffuse Large B-cell Lymphoma (DLBCL) Patients Eligible to Transplantation. BR-DHAP Versus R-DHAP.
Acronym
FIL_VERAL12
Official Title
Phase II Randomized Study With R-DHAP +/- Bortezomib as Induction Therapy in Relapsed/Refractory Diffuse Large B-cell Lymphoma (DLBCL) Patients Eligible to Transplantation. BR-DHAP Versus R-DHAP.
Study Type
Interventional

2. Study Status

Record Verification Date
June 2022
Overall Recruitment Status
Completed
Study Start Date
February 4, 2013 (Actual)
Primary Completion Date
March 12, 2019 (Actual)
Study Completion Date
November 20, 2020 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Fondazione Italiana Linfomi - ETS
Collaborators
Janssen Pharmaceutica, Janssen-Cilag Ltd., Centro di Riferimento per l'Epidemiologia e la Prev. Oncologica Piemonte

4. Oversight

Data Monitoring Committee
No

5. Study Description

Brief Summary
The probability to achieve CR with R-chemotherapy in patients failing a rituximab containing first line regimen is quite low, in particular in cases with non GCB profile. The bioCORAL trial suggest that ABC subset have a dismal outcome whichever the induction treatment. Thus it can be argued the addition of new molecule to the RDHAP regimen could be of value. Bortezomib appears the best candidate in this setting as ABC subtypes constitutively express NFkb, which is the target of bortezomib itself. Data from the literature suggest an encouraging activity of R-chemo+ bortezomib in non GCB-derived DLBCL, although in small series. Thus, the addition of bortezomib is here justified by the need to circumvent constitutional resistance to chemotherapy. Published experience of the association between bortezomib and cytarabine are also encouraging with acceptable cumulative toxicity.
Detailed Description
This is a prospective, multicenter, two-arm randomized phase II screening trial34 in young patients (18-65 years) affected by relapsed/refractory Diffuse Large B-cell Lymphoma (DLBCL) at diagnosis, eligible to high-dose therapy. Aim of the study is to to assess whether the addition of Bortezomib to R-DHAP is more promising than standard R-DHAP, as induction therapy before high dose chemotherapy with ASCT with respect to response and safety. Patients will be randomized at first relapse between: a) the standard salvage therapy Rituximab in association to DHAP every 28 days (R-DHAP) for 4 cycles and b) Bortezomib in association to the same regimen (BR-DHAP). In both arms the induction therapy is followed by autologous stem cell transplantation or, if indicated, by allogeneic stem cell transplant. A patient is considered evaluable if it is possible to assess response by PET after 4 cycle or, if a patient withdraws from the study for PD, before completion of study treatment. After providing written informed consent, patients will be evaluated for eligibility during a 21-day screening period. If they continue to meet eligibility criteria, they will be randomized to receive the first dose of BR-DHAP or R-DHAP .

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Diffuse Large B-cell Lymphoma Refractory, Diffuse Large B-cell Lymphoma Recurrent
Keywords
Diffuse Large B-cell Lymphoma (DLBCL), Bortezomib

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2, Phase 3
Interventional Study Model
Parallel Assignment
Masking
None (Open Label)
Allocation
Randomized
Enrollment
108 (Actual)

8. Arms, Groups, and Interventions

Arm Title
R-DHAP
Arm Type
Active Comparator
Arm Description
R-DHAP x 2, restaging, mobilization and harvest of peripheral stem cell + R-DHAP x 2, restaging with PET evaluation
Arm Title
BR-DHAP
Arm Type
Experimental
Arm Description
Bortezomib + R-DHAP x 2, restaging, mobilization and harvest of peripheral stem cell + Bortezomib + R-DHAP x 2, restaging with PET evaluation
Intervention Type
Drug
Intervention Name(s)
R-DHAP
Intervention Description
Rituximab 375 mg/sqm iv day 0 or 1 Cisplatin 100 mg/sqm iv day 1 in 6-hours infusion Cytarabine 2000 mg/sqm in 3-hours infusion iv day 2 and day 3 Dexamethasone 40 mg day 1-4 Pegfilgrastim 6 mg sc monodose 24 hours after the end of chemotherapy or G-CSF from day 5 till stem cell harvest during mobilization's course (II o III cycle R-DHAP) Rituximab 375 mg/sqm iv 24 hours before apheresis as purging in vivo during second courses of therapy
Intervention Type
Drug
Intervention Name(s)
BR-DHAP
Intervention Description
Rituximab 375 mg/sqm iv day 0 or 1 Bortezomib SC 1.5 mg/sqm day 1, day 4 Cisplatin 100 mg/sqm iv day 1 in 6-hours infusion Cytarabine 2000 mg/sqm in 3-hours infusion iv day 2 and day 3 Dexamethasone 40 mg day 1-4 Pegfilgrastim 6 mg sc monodose 24 hours after the end of chemotherapy or G-CSF from day 5 till stem cell harvest during mobilization's course (II o III cycle R-DHAP) Rituximab 375 mg/sqm iv 24 hours before apheresis as purging in vivo during second courses of therapy Chemotherapy R-DHAP and BR-DHAP will be repeated every 28 days.
Primary Outcome Measure Information:
Title
Complete Response (CR) Rate
Description
Proportion of CR according to the Cheson 2007 response criteria, evaluated by PET scan
Time Frame
At the end of the induction phase (6 months)
Secondary Outcome Measure Information:
Title
Overall Response Rate (ORR)
Description
ORR at the end of the induction treatment is defined as Complete Response (CR) or Partial Response according to the Cheson 2007 response criteria, evaluated by PET scan
Time Frame
At the end of the induction phase (6 months)
Title
Overall Survival (OS)
Description
OS will be defined as the time between the date of randomization and the date of death from any cause
Time Frame
36 months
Title
Number of Patients With Treatment-Related Adverse Events (AEs)/Serious Adverse Events (SAEs) as a Measure of Safety
Description
Incidence of grade 3 or higher Toxicity measured by CTCAE v.4 during therapy
Time Frame
12 months
Title
Mobilizing potential
Description
Amount of CD34+ stem cell collected/Kg
Time Frame
6 months
Title
Number of Patients completing ASCT
Description
Proportion of randomized patients successfully completing ASCT
Time Frame
12 months

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
65 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Age 18-65 Relapsed/refractory disease after receiving one line of standard chemoimmunotherapy (R-CHOP, GA-CHOP, R-CHOP like) Diffuse Large B-cell Lymphoma at relapse. Patient has to be re-biopsied prior to study entry. If this is harmful for the patient, the patient can be enrolled if archivial tumor sample and block from first diagnosis are available. No prior Bortezomib therapy Measurable and/or evaluable disease Any Ann Arbor stage and IPI group at relapse Performance status < 2 according to ECOG scale unless due to lymphoma No Central Nervous System (CNS) disease (meningeal and/or brain involvement by lymphoma) Adequate hematological counts: ANC > 1.5 x 109/L, Hgb > 9 g/dl (transfusion independent), Platelet count > 75 x 109/L (transfusion independent), with the exception of cytopenia due to lymphoma bone marrow involvement HIV negativity, HCV negativity, HBV negativity or patients with HBcAb +, HBsAg -, HBs Ab+/- with HBV-DNA negativity (in these patients Lamivudine prophylaxis is mandatory) Normal liver function (ALP, AST, ALT, GGT, conjugated bilirubin total < 2 x ULN) if not related to lymphoma Normal kidney function (creatinine clearance > 45 ml/min) Cardiac ejection fraction > 50% (MUGA scan or echocardiography) Normal lung function Absence of active opportunistic infections Non peripheral neuropathy or active neurological non neoplastic disease of CNS Non major surgical intervention prior 3 months to randomization if not due to lymphoma and/or no other disease life-threatening that can compromise chemotherapy treatment Disease free of prior malignancies other than lymphoma for > 3 years with exception of currently treated squamous cell and basal cell carcinoma of the skin or carcinoma in situ of the cervix or breast Life expectancy > 6 months No psychiatric illness that precludes understanding concepts of the trial or signing informed consent Written informed consent Women must be: postmenopausal for at least 1 year (must not have had a natural menses for at least 12 months) surgically sterile (have had a hysterectomy or bilateral oophorectomy, tubal ligation, or otherwise be incapable of pregnancy), abstinent (at the discretion of the investigator/per local regulations), or if sexually active, be practicing a highly effective method of birth control (eg, prescription oral contraceptives, contraceptive injections, contraceptive patch, intrauterine device, double-barrier method (eg, condoms, diaphragm, or cervical cap, with spermicidal foam, cream, or gel, male partner sterilization) as local regulations permit, before entry, and must agree to continue to use the same method of contraception throughout the study. They must also be prepared to continue birth control measures for at least 12 months after terminating treatment. Women of childbearing potential must have a negative serum or urine beta-human chorionic gonadotropin (beta-hCG) pregnancy test at screening Men must agree to use an acceptable method of contraception (for themselves or female partners as listed above) for the duration of the study. Men must agree to use a double barrier method of birth control and to not donate sperm during the study and for 3 months after receiving the last dose of study drug. Exclusion criteria: Diagnosis of Lymphoblastic Lymphoma, Burkitt Lymphoma, Non Hodgkin Lymphoma CD20 negative, Mantle Cell Lymphoma, Follicular Lymphoma g I-II-IIIa-IIIb, Primary Mediastinal Lymphoma Age > 65 years Patients ineligible to high-dose chemotherapy Performance status > 2 according to ECOG scale if not due to lymphoma Patient has known or suspected hypersensitivity or intolerance to Rituximab Patient has received an experimental drug or used an experimental medical device within 4 weeks before the planned start of treatment. Concurrent participation in non-treatment studies is allowed, if it will not interfere with participation in this study. CNS disease (meningeal and/or brain involvement by lymphoma) History of clinically relevant liver or renal insufficiency; significant cardiac, vascular, pulmonary, gastrointestinal, endocrine, neurologic, rheumatologic, hematologic, psychiatric, or metabolic disturbances Uncontrolled diabetes (if receiving antidiabetic agents, subjects must be on a stable dose for at least 3 months before first dose of study drug Uncontrolled or severe cardiovascular disease including myocardial infarction within six months of enrollment, New York Heart Association (NYHA) Class III or IV heart failure, uncontrolled angina, clinically significant pericardial disease, or cardiac amyloidosis Cardiac ejection fraction < 50% (MUGA scan or echocardiography) Creatinine clearance < 45 ml/min Presence of major neurological disorders HIV positivity, HCV positivity, HBV positivity with the exception of patients with HBcAb +, HbsAg -, HBs Ab+/- with HBV-DNA negative Active opportunistic infection Major surgical intervention prior 3 months to randomization if not due to lymphoma and/or other disease life-threatening that can compromise chemotherapy treatment Prior malignancies other than lymphoma in the last 3 years with exception of currently treated squamous cell and basal cell carcinoma of the skin or carcinoma in situ of the cervix or breast Life expectancy < 6 months Any other coexisting medical or psychological condition that would preclude participation in the study or compromise ability to give informed consent. If female, the patient is pregnant or breast-feeding.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Umberto Vitolo, MD
Organizational Affiliation
SC Ematologia 2-AO Città della Salute e della Sienza-Molinette
Official's Role
Study Director
Facility Information:
Facility Name
Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori-Ematologia
City
Meldola
State/Province
Forlì-Cesena
ZIP/Postal Code
47014
Country
Italy
Facility Name
Clinica Humanitas
City
Rozzano
State/Province
Milano
ZIP/Postal Code
20089
Country
Italy
Facility Name
ASST Grande Ospedale Metropolitano Niguarda - SC Ematologia
City
Milano
State/Province
MI
ZIP/Postal Code
20162
Country
Italy
Facility Name
CRO Aviano
City
Aviano
State/Province
Pordenone
ZIP/Postal Code
33081
Country
Italy
Facility Name
ASST Valle Olona
City
Gallarate
State/Province
Varese
Country
Italy
Facility Name
A.O. SS. Antonio e Biagio e C. Arrigo
City
Alessandria
ZIP/Postal Code
15121
Country
Italy
Facility Name
Clinica di ematologia AOU Umberto I Ospedali Riuniti
City
Ancona
ZIP/Postal Code
60100
Country
Italy
Facility Name
ASST Spedali Civili di Brescia - Ematologia
City
Brescia
ZIP/Postal Code
25123
Country
Italy
Facility Name
Ospedale Businco - SC Ematologia e CTMO
City
Cagliari
ZIP/Postal Code
09121
Country
Italy
Facility Name
Ematologia 1 Ospedale S. Martino
City
Genova
ZIP/Postal Code
16132
Country
Italy
Facility Name
SC Ematologia - Trapianto di midollo osseo Fond. IRCCS Istituto Nazionale Tumori
City
Milano
ZIP/Postal Code
20133
Country
Italy
Facility Name
SCDU Ematologia - Università del Piemonte Orientale
City
Novara
ZIP/Postal Code
28100
Country
Italy
Facility Name
Ospedale S. Antonio
City
Padova
ZIP/Postal Code
35128
Country
Italy
Facility Name
U.O. Complessa di Ematologia Ospedale di Parma
City
Parma
ZIP/Postal Code
43100
Country
Italy
Facility Name
Ospedale Civile Guglielmo da Saliceto
City
Piacenza
ZIP/Postal Code
29121
Country
Italy
Facility Name
Osp. S. Maria delle Croci
City
Ravenna
ZIP/Postal Code
48121
Country
Italy
Facility Name
Grande Ospedale Metropolitano Bianchi Melacrino Morelli - Ematologia
City
Reggio Calabria
ZIP/Postal Code
89124
Country
Italy
Facility Name
AO Arcispedale S.Maria Nuova Ematologia
City
Reggio Emilia
ZIP/Postal Code
42123
Country
Italy
Facility Name
Osp. degli Infermi Divisione di Oncologia
City
Rimini
ZIP/Postal Code
47923
Country
Italy
Facility Name
A.O. Universitaria S. Andrea
City
Roma
ZIP/Postal Code
00189
Country
Italy
Facility Name
SC Oncoematologia con autotrapianto AO Santa Maria
City
Terni
ZIP/Postal Code
05100
Country
Italy
Facility Name
AOU Citta della Salute e della Scienza di Torino - Ematologia Universitaria
City
Torino
ZIP/Postal Code
10126
Country
Italy
Facility Name
AOU Citta della Salute e della Scienza di Torino-SC Ematologia
City
Torino
ZIP/Postal Code
10126
Country
Italy
Facility Name
Azienda Ospedaliero - Universitaria di Udine
City
Udine
ZIP/Postal Code
33100
Country
Italy

12. IPD Sharing Statement

Learn more about this trial

Phase II Randomized Study With R-DHAP +/- Bortezomib as Induction Therapy in Relapsed/Refractory Diffuse Large B-cell Lymphoma (DLBCL) Patients Eligible to Transplantation. BR-DHAP Versus R-DHAP.

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