This trial is active, not recruiting.

Condition mantle cell lymphoma
Treatment rituximab, bendamustine, cytarabine.
Phase phase 2
Sponsor Fondazione Italiana Linfomi ONLUS
Start date February 2012
End date August 2012
Trial size 57 participants
Trial identifier NCT01662050, FIL-RBAC500


A phase 2 study of standard R‐BAC (rituximab 375 mg/m2, bendamustine 70 mg/m2, ara‐c 800 mg/m2) has been recently ultimated at the Vicenza Hematology Department involving several regional centers on both untreated and previously treated patients with Mantle Cell Lymphoma (MCL). An interim analysis conducted on 30 patients showed that rituximab + bendamustine + ara‐c combination had very good clinical activity, but a quite relevant hematological toxicity, especially in previously treated and older patients (Visco C, ICML 2011 Lugano Conference, Poster 236).


The primary objective is to determine the activity (complete remission rate according to Cheson 2007 criteria) and safety of age‐adjusted Rituximab‐Bendamustine‐Cytarabine (RBAC500) regimen at the end of treatment in older untreated patients with MCL.

The secondary objectives are to determine:

- The rate of molecular response (characterized by labs of the FIL)

- The progression‐free survival (PFS)

- The overall survival (OS)

- The duration of responses (DOR)

- The rate of patients that complete the expected treatment schedule (6 courses)

- The rate of patients that are subject to dose reductions or delays

United States No locations recruiting
Other Countries No locations recruiting

Study Design

Endpoint classification safety/efficacy study
Intervention model single group assignment
Masking single blind (subject)
Primary purpose treatment
One arm for all patients.
rituximab, bendamustine, cytarabine.
6 cycles of 28 days with Rituximab, Bendamustine and Cytarabine (R-BAC). Rituximab 375mg/mq; Bendamustine 70mg/mq; Cytarabine 500mg/mq.

Primary Outcomes

complete remission rate at the end of treatment
time frame: 6 months
Toxicity will be represented by the occurrence of any of the stop treatment criteria or of any episode of relevant toxicity
time frame: 6 months

Secondary Outcomes

the rate of molecular response
time frame: 6 months
the progression-free survival (PFS)
time frame: 30 months
the overall survival (OS)
time frame: 30 months
the duration of responses (DOR)
time frame: 30 months
the rate of completion of treatment
time frame: 6 months
the rate of dose reductions or delays
time frame: 6 months

Eligibility Criteria

Male or female participants at least 65 years old.

Inclusion Criteria: - Previously untreated patients with MCL aged > 65 years if they are FIT according to the geriatric CGA assessment. - age 60-65 years not eligible to high-dose chemotherapy plus transplantation, FIT or UNFIT according to the geriatric CGA assessment. - ECOG performance status ≤ 2. - Positivity for cyclin D1 and SOX11 [the latter being mandatory in cases lacking cyclin D1- or t(11;14)-negative], CD20 and CD5. - Adequate renal function (Creatinine clearance > 40 mL/min), with preserved diuresis. - Adequate liver function: alanine aminotransferase (ALT)/aspartate aminotransferase (AST) < 2.5 x upper limit of normal (ULN) value, total bilirubin < 2 mg/dL, unless directly attributable to the patient's tumor. - Hepatitis B core antibody (HBcAb) positive/HBsAg negative/HBV-DNA negative patients may be enrolled if correct antiviral prophylaxis is administered at least 2 weeks before initiating protocol treatment. - Written informed consent. Exclusion Criteria: - Human immunodeficiency virus (HIV) positive. - Previous treatment for lymphoma - Medical conditions or organ injuries that could interfere with administration of therapy. - Active bacterial, viral, or fungal infection requiring systemic therapy. - Seizure disorders requiring anticonvulsant therapy. - Severe chronic obstructive pulmonary disease with hypoxemia. - History of severe cardiac disease: New York Heart Association (NYHA) functional class III-IV, myocardial infarction within 6 months, ventricular tachyarrhythmias, dilatative cardiomyopathy, or unstable angina. - Uncontrolled diabetes mellitus. - Active secondary malignancy. - Known hypersensitivity or anaphylactic reactions to murine antibodies and proteins, to Bendamustine or mannitol. - Major surgery within 4 weeks of study Day 1. - HBsAg+ - HCVAb+ patients with active viral replication (HCV-RNA+ with AST > 2 x normal limit) - Any co-existing medical or psychological condition that would preclude participation in the study or compromise the patient's ability to give informed consent, or that may affect the interpretation of the results, or render the patient at high risk from treatment complications. - CNS involvement (a diagnostic lumbar puncture will be performed in patients with the blastoid variant of MCL)

Additional Information

Official title Phase II Study of Age‐Adjusted R‐BAC (Rituximab, Bendamustine, Cytarabine) as Induction Therapy in Older Patients With Mantle Cell Lymphoma (MCL)
Description Study End points Primary efficacy end point of the study is the proportion of CR defined according to Cheson criteria (2007) at the end of treatment (6 or 4 cycles). Primary safety end point is the occurrence of any of the stop treatment criteria or of any episode of relevant toxicity, as above defined. Secondary end points are MRD defined response, OS, PFS and DOR (Cheson 2007). Molecular response is the proportion of patients with molecular rearrangements at baseline that become negative during treatment, measured by qualitative and quantitative PCR. OS is measured from enrollment until death from any cause. PFS is measured from the time of enrollment until disease progression, relapse or death from any cause. DOR is measured from the first assessment that documents response (CR or PR) to the date of disease relapse or progression. Minimum follow up required for all patients will be 24 months.
Trial information was received from ClinicalTrials.gov and was last updated in August 2016.
Information provided to ClinicalTrials.gov by Fondazione Italiana Linfomi ONLUS.