Trial Outcomes & Findings for A Study to Assess the Efficacy of Rituximab (MabThera) in First Line Treatment of Chronic Lymphocytic Leukemia (CLL) (NCT NCT00545714)

NCT ID: NCT00545714

Last Updated: 2019-01-16

Results Overview

CR was defined as no adenopathies (ADPs) and visceromegalies (VSMs) in physical examination (PE); no general symptoms (Sx); lymphocytes (Lymph) in peripheral blood less than (\<) 4000 per cubic millimeter (mm\^3); normalization of peripheral blood parameters: neutrophils (Neut) greater than (\>) 1500/mm\^3, platelets (Plt) \>100,000/mm\^3, hemoglobin (Hb) \>11 grams per deciliter (g/dL) without transfusion; normocellular bone marrow (BM) with \<30% Lymph; BM aspirate/biopsy with no evidence of infiltration of lymphoid nodules.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

86 participants

Primary outcome timeframe

Month 9

Results posted on

2019-01-16

Participant Flow

A total of 86 participants were enrolled in 29 centers in Spain in this two-phase study (Induction Phase and Maintenance Phase).

Participant milestones

Participant milestones
Measure
Rituximab + Fludarabine + Cyclophosphamide
Participants received rituximab 375 milligrams per square meter (mg/m\^2) as intravenous (IV) infusion on Day 0 of Cycle 1 and 500 mg/m\^2 as IV infusion on Day 1 of Cycles 2-6 (cycle length = 28 days); fludarabine 25 mg/m\^2 on Days 1-3 of each cycle and cyclophosphamide 250 mg/m\^2 on Days 1-3 of each cycle during the Induction Phase. Participants with a partial response (PR) or complete response (CR) and appropriate neutrophil conditions received maintenance treatment with rituximab (375 mg/m\^2 as IV infusion every 2 months) from 3 months after Day 1 Cycle 6 up to a total of 18 doses or up to 3 years after Cycle 6 of Induction Phase.
Induction Phase (6 Months)
STARTED
86
Induction Phase (6 Months)
Safety Population
86
Induction Phase (6 Months)
Intent-to-Treat (ITT) Population
84
Induction Phase (6 Months)
COMPLETED
74
Induction Phase (6 Months)
NOT COMPLETED
12
Maintenance Phase (36 Months)
STARTED
74
Maintenance Phase (36 Months)
COMPLETED
42
Maintenance Phase (36 Months)
NOT COMPLETED
32

Reasons for withdrawal

Reasons for withdrawal
Measure
Rituximab + Fludarabine + Cyclophosphamide
Participants received rituximab 375 milligrams per square meter (mg/m\^2) as intravenous (IV) infusion on Day 0 of Cycle 1 and 500 mg/m\^2 as IV infusion on Day 1 of Cycles 2-6 (cycle length = 28 days); fludarabine 25 mg/m\^2 on Days 1-3 of each cycle and cyclophosphamide 250 mg/m\^2 on Days 1-3 of each cycle during the Induction Phase. Participants with a partial response (PR) or complete response (CR) and appropriate neutrophil conditions received maintenance treatment with rituximab (375 mg/m\^2 as IV infusion every 2 months) from 3 months after Day 1 Cycle 6 up to a total of 18 doses or up to 3 years after Cycle 6 of Induction Phase.
Induction Phase (6 Months)
Physician Decision
3
Induction Phase (6 Months)
Unacceptable Toxicity
6
Induction Phase (6 Months)
Disease Progression
1
Induction Phase (6 Months)
Eligibility Criteria Violation
2
Maintenance Phase (36 Months)
Unacceptable Toxicity
16
Maintenance Phase (36 Months)
Disease Progression
9
Maintenance Phase (36 Months)
Physician Decision
1
Maintenance Phase (36 Months)
Protocol Violation
1
Maintenance Phase (36 Months)
Withdrawal by Subject
3
Maintenance Phase (36 Months)
Death
2

Baseline Characteristics

A Study to Assess the Efficacy of Rituximab (MabThera) in First Line Treatment of Chronic Lymphocytic Leukemia (CLL)

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Rituximab + Fludarabine + Cyclophosphamide
n=84 Participants
Participants received rituximab 375 mg/m\^2 as IV infusion on Day 0 of Cycle 1 and 500 mg/m\^2 as IV infusion on Day 1 of Cycles 2-6 (cycle length = 28 days); fludarabine 25 mg/m\^2 on Days 1-3 of each cycle and cyclophosphamide 250 mg/m\^2 on Days 1-3 of each cycle during the Induction Phase. Participants with a PR or CR and appropriate neutrophil conditions received maintenance treatment with rituximab (375 mg/m\^2 as IV infusion every 2 months) from 3 months after Day 1 Cycle 6 up to a total of 18 doses or up to 3 years after Cycle 6 of Induction Phase.
Age, Continuous
57.92 Years
STANDARD_DEVIATION 7.87 • n=5 Participants
Sex: Female, Male
Female
27 Participants
n=5 Participants
Sex: Female, Male
Male
57 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Month 9

Population: ITT Population included all participants who received at least one dose of study drug and met inclusion/exclusion criteria.

CR was defined as no adenopathies (ADPs) and visceromegalies (VSMs) in physical examination (PE); no general symptoms (Sx); lymphocytes (Lymph) in peripheral blood less than (\<) 4000 per cubic millimeter (mm\^3); normalization of peripheral blood parameters: neutrophils (Neut) greater than (\>) 1500/mm\^3, platelets (Plt) \>100,000/mm\^3, hemoglobin (Hb) \>11 grams per deciliter (g/dL) without transfusion; normocellular bone marrow (BM) with \<30% Lymph; BM aspirate/biopsy with no evidence of infiltration of lymphoid nodules.

Outcome measures

Outcome measures
Measure
Rituximab + Fludarabine + Cyclophosphamide
n=84 Participants
Participants received rituximab 375 mg/m\^2 as IV infusion on Day 0 of Cycle 1 and 500 mg/m\^2 as IV infusion on Day 1 of Cycles 2-6 (cycle length = 28 days); fludarabine 25 mg/m\^2 on Days 1-3 of each cycle and cyclophosphamide 250 mg/m\^2 on Days 1-3 of each cycle during the Induction Phase. Participants with a PR or CR and appropriate neutrophil conditions received maintenance treatment with rituximab (375 mg/m\^2 as IV infusion every 2 months) from 3 months after Day 1 Cycle 6 up to a total of 18 doses or up to 3 years after Cycle 6 of Induction Phase.
Percentage of Participants With CR Achieved After the Rituximab, Fludarabine, and Cyclophosphamide Regimen
95.2 Percentage of Participants
Interval 88.25 to 98.69

SECONDARY outcome

Timeframe: Post-Induction Phase (IP): at 6 months; during Maintenance Phase (MP): at Cycles 9, 12, 15, 18 (cycle length = 2 months); during Follow-Up (FU): at Follow-Up Months 6, 12, 18, 24, 30, 36

Population: ITT Population. Here, 'Number Analyzed' signifies participants who were evaluable for indicated category.

CR was defined as no ADPs and VSMs in PE; no general Sx; Lymph in peripheral blood \<4000/mm\^3; normalization of peripheral blood parameters: Neut \>1500/mm\^3, Plt \>100,000/mm\^3, Hb \>11 g/dL without transfusion; normocellular BM with \<30% Lymph; BM aspirate/biopsy with no evidence of infiltration of lymphoid nodules. PR was defined as decrease \>50% in Lymph in peripheral blood; reduction in ADPs \>50% in total sum of up to 6 ADPs or in the baseline ADP of largest diameter (LD), no new ADP or enlargement of a prior ADP; \>50% decrease in VSM; Neut \>1500/mm\^3 or \>50% increase from Baseline; Plt \>100,000/mm\^3 or \>50% increase from Baseline; Hb \>11.0 g/dL or \>50% increase from Baseline value without transfusion. Participants who met all CR criteria but had persistent anemia or thrombocytopenia were considered as PR.

Outcome measures

Outcome measures
Measure
Rituximab + Fludarabine + Cyclophosphamide
n=84 Participants
Participants received rituximab 375 mg/m\^2 as IV infusion on Day 0 of Cycle 1 and 500 mg/m\^2 as IV infusion on Day 1 of Cycles 2-6 (cycle length = 28 days); fludarabine 25 mg/m\^2 on Days 1-3 of each cycle and cyclophosphamide 250 mg/m\^2 on Days 1-3 of each cycle during the Induction Phase. Participants with a PR or CR and appropriate neutrophil conditions received maintenance treatment with rituximab (375 mg/m\^2 as IV infusion every 2 months) from 3 months after Day 1 Cycle 6 up to a total of 18 doses or up to 3 years after Cycle 6 of Induction Phase.
Percentage of Participants With Clinical Response of CR or PR as Assessed by Multiparameter Flow Cytometry
Post-IP: CR
75.0 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR as Assessed by Multiparameter Flow Cytometry
Post-IP: PR
13.1 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR as Assessed by Multiparameter Flow Cytometry
MP (9 Cycles): CR
89.4 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR as Assessed by Multiparameter Flow Cytometry
MP (9 Cycles): PR
6.4 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR as Assessed by Multiparameter Flow Cytometry
MP (12 Cycles): CR
87.9 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR as Assessed by Multiparameter Flow Cytometry
MP (12 Cycles): PR
6.1 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR as Assessed by Multiparameter Flow Cytometry
MP (15 Cycles): CR
90.9 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR as Assessed by Multiparameter Flow Cytometry
MP (15 Cycles): PR
4.5 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR as Assessed by Multiparameter Flow Cytometry
MP (18 Cycles): CR
88.1 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR as Assessed by Multiparameter Flow Cytometry
MP (18 Cycles): PR
8.5 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR as Assessed by Multiparameter Flow Cytometry
6 Months FU: CR
83.3 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR as Assessed by Multiparameter Flow Cytometry
6 Months FU: PR
0.0 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR as Assessed by Multiparameter Flow Cytometry
12 Months FU: CR
94.4 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR as Assessed by Multiparameter Flow Cytometry
12 Months FU: PR
0.0 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR as Assessed by Multiparameter Flow Cytometry
18 Months FU: CR
100.0 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR as Assessed by Multiparameter Flow Cytometry
18 Months FU: PR
0.0 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR as Assessed by Multiparameter Flow Cytometry
24 Months FU: CR
93.1 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR as Assessed by Multiparameter Flow Cytometry
24 Months FU: PR
0.0 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR as Assessed by Multiparameter Flow Cytometry
30 Months FU: CR
100.0 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR as Assessed by Multiparameter Flow Cytometry
30 Months FU: PR
0.0 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR as Assessed by Multiparameter Flow Cytometry
36 Months FU: CR
100.0 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR as Assessed by Multiparameter Flow Cytometry
36 Months FU: PR
0.0 Percentage of Participants

SECONDARY outcome

Timeframe: Post-Induction Phase: at 6 months; during Maintenance Phase: at Cycles 9, 12, 15, 18 (cycle length = 2 months); during Follow-Up: at Follow-Up Months 6, 12, 18, 24, 36

Population: ITT Population. Only those with negative MRD were included in the analysis. Here, 'Number Analyzed' signifies participants who were evaluable for indicated category.

CR: no ADPs and VSMs in PE; no general Sx; Lymph in peripheral blood \<4000/mm\^3; normalization of peripheral blood parameters: Neut \>1500/mm\^3, Plt \>100,000/mm\^3, Hb \>11 g/dL without transfusion; normocellular BM with \<30% Lymph; BM aspirate/biopsy with no evidence of infiltration of lymphoid nodules. PR: decrease \>50% in Lymph in peripheral blood; reduction in ADPs \>50% in total sum of up to 6 ADPs or in the baseline ADP of largest diameter (LD), no new ADP or enlargement of a prior ADP; \>50% decrease in VSM; Neut \>1500/mm\^3 or \>50% increase from Baseline; Plt \>100,000/mm\^3 or \>50% increase from Baseline; Hb \>11.0 g/dL or \>50% increase from Baseline value without transfusion. Participants who met all CR criteria but had persistent anemia or thrombocytopenia were considered as PR. Negative MRD: Lymph \<0.01% of all white blood cells (WBCs) in blood or BM after two consecutive measurements. Analysis performed only in blood during the Maintenance Phase and Follow-Up.

Outcome measures

Outcome measures
Measure
Rituximab + Fludarabine + Cyclophosphamide
n=60 Participants
Participants received rituximab 375 mg/m\^2 as IV infusion on Day 0 of Cycle 1 and 500 mg/m\^2 as IV infusion on Day 1 of Cycles 2-6 (cycle length = 28 days); fludarabine 25 mg/m\^2 on Days 1-3 of each cycle and cyclophosphamide 250 mg/m\^2 on Days 1-3 of each cycle during the Induction Phase. Participants with a PR or CR and appropriate neutrophil conditions received maintenance treatment with rituximab (375 mg/m\^2 as IV infusion every 2 months) from 3 months after Day 1 Cycle 6 up to a total of 18 doses or up to 3 years after Cycle 6 of Induction Phase.
Percentage of Participants With Clinical Response of CR or PR Among Participants With Negative Minimal Residual Disease (MRD) as Assessed by Multiparameter Flow Cytometry
Post-IP: Blood MRD Negative
100.0 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR Among Participants With Negative Minimal Residual Disease (MRD) as Assessed by Multiparameter Flow Cytometry
Post-IP: BM MRD Negative
100.0 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR Among Participants With Negative Minimal Residual Disease (MRD) as Assessed by Multiparameter Flow Cytometry
MP (9 Cycles): Blood MRD Negative
100.0 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR Among Participants With Negative Minimal Residual Disease (MRD) as Assessed by Multiparameter Flow Cytometry
MP (12 Cycles): Blood MRD Negative
100.0 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR Among Participants With Negative Minimal Residual Disease (MRD) as Assessed by Multiparameter Flow Cytometry
MP (15 Cycles): Blood MRD Negative
100.0 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR Among Participants With Negative Minimal Residual Disease (MRD) as Assessed by Multiparameter Flow Cytometry
MP (18 Cycles): Blood MRD Negative
100.0 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR Among Participants With Negative Minimal Residual Disease (MRD) as Assessed by Multiparameter Flow Cytometry
6 Months FU: Blood MRD Negative
100.0 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR Among Participants With Negative Minimal Residual Disease (MRD) as Assessed by Multiparameter Flow Cytometry
12 Months FU: Blood MRD Negative
100.0 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR Among Participants With Negative Minimal Residual Disease (MRD) as Assessed by Multiparameter Flow Cytometry
18 Months FU: Blood MRD Negative
100.0 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR Among Participants With Negative Minimal Residual Disease (MRD) as Assessed by Multiparameter Flow Cytometry
24 Months FU: Blood MRD Negative
100.0 Percentage of Participants
Percentage of Participants With Clinical Response of CR or PR Among Participants With Negative Minimal Residual Disease (MRD) as Assessed by Multiparameter Flow Cytometry
36 Months FU: Blood MRD Negative
100.0 Percentage of Participants

SECONDARY outcome

Timeframe: Baseline up to progressive disease (PD) or death due to any cause, whichever occurred first (up to 92 months)

Population: ITT Population

Participants with CRi were those who met all CR criteria (including BM examinations) but had persistent anemia, thrombocytopenia, or neutropenia apparently unrelated to chronic lymphocytic leukemia (CLL) but related to drug toxicity. CR: no ADPs and VSMs in PE; no general Sx; Lymph in peripheral blood \<4000/mm\^3; normalization of peripheral blood parameters: Neut \>1500/mm\^3, Plt \>100,000/mm\^3, Hb \>11 g/dL without transfusion; normocellular BM with \<30% Lymph; BM aspirate/biopsy with no evidence of infiltration of lymphoid nodules.

Outcome measures

Outcome measures
Measure
Rituximab + Fludarabine + Cyclophosphamide
n=84 Participants
Participants received rituximab 375 mg/m\^2 as IV infusion on Day 0 of Cycle 1 and 500 mg/m\^2 as IV infusion on Day 1 of Cycles 2-6 (cycle length = 28 days); fludarabine 25 mg/m\^2 on Days 1-3 of each cycle and cyclophosphamide 250 mg/m\^2 on Days 1-3 of each cycle during the Induction Phase. Participants with a PR or CR and appropriate neutrophil conditions received maintenance treatment with rituximab (375 mg/m\^2 as IV infusion every 2 months) from 3 months after Day 1 Cycle 6 up to a total of 18 doses or up to 3 years after Cycle 6 of Induction Phase.
Percentage of Participants With CR With Incomplete Bone Marrow Recovery (CRi)
7.1 Percentage of Participants

SECONDARY outcome

Timeframe: Baseline up to death due to any cause (up to 92 months)

Population: Safety Population

Outcome measures

Outcome measures
Measure
Rituximab + Fludarabine + Cyclophosphamide
n=86 Participants
Participants received rituximab 375 mg/m\^2 as IV infusion on Day 0 of Cycle 1 and 500 mg/m\^2 as IV infusion on Day 1 of Cycles 2-6 (cycle length = 28 days); fludarabine 25 mg/m\^2 on Days 1-3 of each cycle and cyclophosphamide 250 mg/m\^2 on Days 1-3 of each cycle during the Induction Phase. Participants with a PR or CR and appropriate neutrophil conditions received maintenance treatment with rituximab (375 mg/m\^2 as IV infusion every 2 months) from 3 months after Day 1 Cycle 6 up to a total of 18 doses or up to 3 years after Cycle 6 of Induction Phase.
Percentage of Participants Who Died
23.2 Percentage of Participants
Interval 5.72 to

SECONDARY outcome

Timeframe: Baseline up to death due to any cause (up to 92 months)

Population: ITT Population

OS was defined as time from treatment start to death of the participant. For all other participants, the last follow-up available was taken as the last control. If the participant had not completed the study, the date of the last visit available was considered. OS was estimated using Kaplan-Meier (KM) methodology.

Outcome measures

Outcome measures
Measure
Rituximab + Fludarabine + Cyclophosphamide
n=84 Participants
Participants received rituximab 375 mg/m\^2 as IV infusion on Day 0 of Cycle 1 and 500 mg/m\^2 as IV infusion on Day 1 of Cycles 2-6 (cycle length = 28 days); fludarabine 25 mg/m\^2 on Days 1-3 of each cycle and cyclophosphamide 250 mg/m\^2 on Days 1-3 of each cycle during the Induction Phase. Participants with a PR or CR and appropriate neutrophil conditions received maintenance treatment with rituximab (375 mg/m\^2 as IV infusion every 2 months) from 3 months after Day 1 Cycle 6 up to a total of 18 doses or up to 3 years after Cycle 6 of Induction Phase.
Overall Survival (OS)
7.51 Years
Interval 7.5 to
The upper limit of confidence interval (CI) was not estimable due to high number of censored participants.

SECONDARY outcome

Timeframe: Baseline up to PD or death due to any cause, whichever occurred first (up to 92 months)

Population: ITT Population

PD was defined as new ADPs (1.5 centimeters \[cm\]), hepato-/splenomegaly (HSM), Richter syndrome (RS), or other infiltrated organs; greater than or equal to (\>/=) 50% increase in size of Baseline prior ADPs or HSM in participants with PR; Lymph increase \>/=50% in peripheral blood with B Lymph \>/=5000/mm\^3; cytopenia attributable to CLL. Progression of any cytopenia (not related to autoimmune cytopenia) reported as a 2-g/dL decrease in basal Hb, Hb \<10 g/dL, \>/=50% decrease in basal Plt count, or count \<100,000/mm\^3 at \>/=3 months post-treatment was defined as PD if BM biopsy confirmed infiltration of clonal CLL cells.

Outcome measures

Outcome measures
Measure
Rituximab + Fludarabine + Cyclophosphamide
n=84 Participants
Participants received rituximab 375 mg/m\^2 as IV infusion on Day 0 of Cycle 1 and 500 mg/m\^2 as IV infusion on Day 1 of Cycles 2-6 (cycle length = 28 days); fludarabine 25 mg/m\^2 on Days 1-3 of each cycle and cyclophosphamide 250 mg/m\^2 on Days 1-3 of each cycle during the Induction Phase. Participants with a PR or CR and appropriate neutrophil conditions received maintenance treatment with rituximab (375 mg/m\^2 as IV infusion every 2 months) from 3 months after Day 1 Cycle 6 up to a total of 18 doses or up to 3 years after Cycle 6 of Induction Phase.
Percentage of Participants With PD or Death
39.29 Percentage of Participants
Interval 5.72 to

SECONDARY outcome

Timeframe: Baseline up to PD or death due to any cause, whichever occurred first (up to 92 months)

Population: ITT Population

PFS was defined as time from start of study treatment to PD or death, whichever occurred first. For other participants, last follow-up available was taken as last control. If participant did not complete study, date of last visit available was considered. PFS was estimated using KM methodology. PD was defined as new ADPs (1.5 cm), HSM, RS, or other infiltrated organs; \>/=50% increase in size of Baseline prior ADPs or HSM in participants with PR; Lymph increase \>/=50% in peripheral blood with B Lymph \>/=5000/mm\^3; cytopenia attributable to CLL. Progression of any cytopenia (not related to autoimmune cytopenia) reported as a 2-g/dL decrease in basal Hb, Hb \<10 g/dL, \>/=50% decrease in basal Plt count, or count \<100,000/mm\^3 at \>/=3 months post-treatment was defined as PD if BM biopsy confirmed infiltration of clonal CLL cells.

Outcome measures

Outcome measures
Measure
Rituximab + Fludarabine + Cyclophosphamide
n=84 Participants
Participants received rituximab 375 mg/m\^2 as IV infusion on Day 0 of Cycle 1 and 500 mg/m\^2 as IV infusion on Day 1 of Cycles 2-6 (cycle length = 28 days); fludarabine 25 mg/m\^2 on Days 1-3 of each cycle and cyclophosphamide 250 mg/m\^2 on Days 1-3 of each cycle during the Induction Phase. Participants with a PR or CR and appropriate neutrophil conditions received maintenance treatment with rituximab (375 mg/m\^2 as IV infusion every 2 months) from 3 months after Day 1 Cycle 6 up to a total of 18 doses or up to 3 years after Cycle 6 of Induction Phase.
Progression-Free Survival (PFS)
6.96 Years
Interval 5.72 to
The upper limit of CI was not estimable due to high number of censored participants.

SECONDARY outcome

Timeframe: Baseline up to PD or death due to any cause, whichever occurred first (up to 92 months)

Population: ITT Population. Only those who received new chemotherapy/immunotherapy, as per definitions for TFS, were included in the analysis.

TFS was defined time from start of study treatment until participant received new chemotherapy/immunotherapy because of PD and to reduce the disease with palliative or curative intent. PD was defined as new ADPs (1.5 cm), HSM, RS, or other infiltrated organs; \>/=50% increase in size of Baseline prior ADPs or HSM in participants with PR; Lymph increase \>/=50% in peripheral blood with B Lymph \>/=5000/mm\^3; cytopenia attributable to CLL. Progression of any cytopenia (not related to autoimmune cytopenia) reported as a 2-g/dL decrease in basal Hb, Hb \<10 g/dL, \>/=50% decrease in basal Plt count, or count \<100,000/mm\^3 at \>/=3 months post-treatment was defined as PD if BM biopsy confirmed infiltration of clonal CLL cells.

Outcome measures

Outcome measures
Measure
Rituximab + Fludarabine + Cyclophosphamide
n=27 Participants
Participants received rituximab 375 mg/m\^2 as IV infusion on Day 0 of Cycle 1 and 500 mg/m\^2 as IV infusion on Day 1 of Cycles 2-6 (cycle length = 28 days); fludarabine 25 mg/m\^2 on Days 1-3 of each cycle and cyclophosphamide 250 mg/m\^2 on Days 1-3 of each cycle during the Induction Phase. Participants with a PR or CR and appropriate neutrophil conditions received maintenance treatment with rituximab (375 mg/m\^2 as IV infusion every 2 months) from 3 months after Day 1 Cycle 6 up to a total of 18 doses or up to 3 years after Cycle 6 of Induction Phase.
Treatment-Free Survival (TFS)
4.13 Years
Interval 2.98 to 4.87

SECONDARY outcome

Timeframe: From first CR or PR up to detectable MRD or disease occurrence/PD, whichever occurred first (up to 92 months)

Population: ITT Population. Only those participants who achieved a clinical response of CR or PR were evaluable for this measure.

DOR: time from CR/PR to MRD/PD. PD: new ADP (1.5 cm), HSM, RS, other infiltrated organs or \>/=50% increase size in those with PR; blood Lymph increase \>/=50% with B Lymph \>/=5000/mm\^3; cytopenia due to CLL. Progression of (nonautoimmune) cytopenia: 2-g/dL decrease basal Hb, Hb \<10 g/dL, \>/=50% decrease basal Plt or \<100,000/mm\^3 at \>/=3 months post-treatment was PD if clonal CLL cell infiltration on BM biopsy. CR: no ADP/VSM in PE; no general Sx; blood Lymph \<4000/mm\^3; Neut \>1500/mm\^3; Plt \>100,000/mm\^3; Hb \>11 g/dL (no transfusion); normocellular BM with \<30% Lymph; BM aspirate/biopsy with no lymphoid nodule infiltration. PR: \>50% decrease blood Lymph; \>50% decrease in total sum up to 6 ADPs or baseline ADP of LD, no new/enlargement of prior ADP; \>50% decrease VSM; Neut \>1500/mm\^3 or \>50% increase; Plt \>100,000/mm\^3 or \>50% increase; Hb \>11.0 g/dL or \>50% increase (no transfusion). All CR criteria but persistent anemia or thrombocytopenia was PR. MRD: Lymph \>0.01% of blood/BM WBCs.

Outcome measures

Outcome measures
Measure
Rituximab + Fludarabine + Cyclophosphamide
n=80 Participants
Participants received rituximab 375 mg/m\^2 as IV infusion on Day 0 of Cycle 1 and 500 mg/m\^2 as IV infusion on Day 1 of Cycles 2-6 (cycle length = 28 days); fludarabine 25 mg/m\^2 on Days 1-3 of each cycle and cyclophosphamide 250 mg/m\^2 on Days 1-3 of each cycle during the Induction Phase. Participants with a PR or CR and appropriate neutrophil conditions received maintenance treatment with rituximab (375 mg/m\^2 as IV infusion every 2 months) from 3 months after Day 1 Cycle 6 up to a total of 18 doses or up to 3 years after Cycle 6 of Induction Phase.
Duration of Response (DOR)
NA Years
Median time of response was not estimable due to high number of censored participants.

SECONDARY outcome

Timeframe: Post-Induction Phase: at 6 months; during Maintenance Phase: at Cycles 9, 12, 15, 18 (cycle length = 2 months); during Follow-Up: at Follow-Up Months 6, 12, 18, 24, 30, 36

Population: ITT Population. Here, 'Number Analyzed' signifies participants who were evaluable for indicated category.

Percentages of participants with CD38 expression by \>/=30% of CLL cells during the Induction Phase, Maintenance Phase, and Follow-Up were reported.

Outcome measures

Outcome measures
Measure
Rituximab + Fludarabine + Cyclophosphamide
n=84 Participants
Participants received rituximab 375 mg/m\^2 as IV infusion on Day 0 of Cycle 1 and 500 mg/m\^2 as IV infusion on Day 1 of Cycles 2-6 (cycle length = 28 days); fludarabine 25 mg/m\^2 on Days 1-3 of each cycle and cyclophosphamide 250 mg/m\^2 on Days 1-3 of each cycle during the Induction Phase. Participants with a PR or CR and appropriate neutrophil conditions received maintenance treatment with rituximab (375 mg/m\^2 as IV infusion every 2 months) from 3 months after Day 1 Cycle 6 up to a total of 18 doses or up to 3 years after Cycle 6 of Induction Phase.
Percentage of Participants With Cluster of Differentiation (CD) 38 Cells >/=30% in Peripheral Blood
Post-IP
47.6 Percentage of Participants
Percentage of Participants With Cluster of Differentiation (CD) 38 Cells >/=30% in Peripheral Blood
MP (9 Cycles)
44.4 Percentage of Participants
Percentage of Participants With Cluster of Differentiation (CD) 38 Cells >/=30% in Peripheral Blood
MP (12 Cycles)
45.5 Percentage of Participants
Percentage of Participants With Cluster of Differentiation (CD) 38 Cells >/=30% in Peripheral Blood
MP (15 Cycles)
47.6 Percentage of Participants
Percentage of Participants With Cluster of Differentiation (CD) 38 Cells >/=30% in Peripheral Blood
MP (18 Cycles)
47.4 Percentage of Participants
Percentage of Participants With Cluster of Differentiation (CD) 38 Cells >/=30% in Peripheral Blood
6 Months FU
66.7 Percentage of Participants
Percentage of Participants With Cluster of Differentiation (CD) 38 Cells >/=30% in Peripheral Blood
12 Months FU
45.7 Percentage of Participants
Percentage of Participants With Cluster of Differentiation (CD) 38 Cells >/=30% in Peripheral Blood
18 Months FU
100.0 Percentage of Participants
Percentage of Participants With Cluster of Differentiation (CD) 38 Cells >/=30% in Peripheral Blood
24 Months FU
41.4 Percentage of Participants
Percentage of Participants With Cluster of Differentiation (CD) 38 Cells >/=30% in Peripheral Blood
30 Months FU
50.0 Percentage of Participants
Percentage of Participants With Cluster of Differentiation (CD) 38 Cells >/=30% in Peripheral Blood
36 Months FU
35.5 Percentage of Participants

SECONDARY outcome

Timeframe: Post-Induction Phase: at 6 months; during Maintenance Phase: at Cycles 9, 12, 15, 18 (cycle length = 2 months)

Population: ITT Population. Here, 'Number Analyzed' signifies participants who were evaluable for indicated category. Designation of 'MP (xC)' refers to number of cycles in Maintenance Phase.

Percentages of participants with genetic abnormalities (deletion 6q, deletion 11q22-q23, deletion p53, trisomy 12, and deletion 13q14) in the course of the disease during the Induction Phase and Maintenance Phase were reported.

Outcome measures

Outcome measures
Measure
Rituximab + Fludarabine + Cyclophosphamide
n=84 Participants
Participants received rituximab 375 mg/m\^2 as IV infusion on Day 0 of Cycle 1 and 500 mg/m\^2 as IV infusion on Day 1 of Cycles 2-6 (cycle length = 28 days); fludarabine 25 mg/m\^2 on Days 1-3 of each cycle and cyclophosphamide 250 mg/m\^2 on Days 1-3 of each cycle during the Induction Phase. Participants with a PR or CR and appropriate neutrophil conditions received maintenance treatment with rituximab (375 mg/m\^2 as IV infusion every 2 months) from 3 months after Day 1 Cycle 6 up to a total of 18 doses or up to 3 years after Cycle 6 of Induction Phase.
Percentage of Participants With Genetic Abnormalities
MP (12C): Deletion 13q14
51.5 Percentage of Participants
Percentage of Participants With Genetic Abnormalities
Post-IP: Deletion 6q
3.6 Percentage of Participants
Percentage of Participants With Genetic Abnormalities
Post-IP: Deletion 11q22-q23
26.2 Percentage of Participants
Percentage of Participants With Genetic Abnormalities
Post-IP: Deletion p53
4.8 Percentage of Participants
Percentage of Participants With Genetic Abnormalities
Post-IP: Trisomy 12
15.5 Percentage of Participants
Percentage of Participants With Genetic Abnormalities
Post-IP: Deletion 13q14
50.0 Percentage of Participants
Percentage of Participants With Genetic Abnormalities
MP (9C): Deletion 6q
4.3 Percentage of Participants
Percentage of Participants With Genetic Abnormalities
MP (9C): Deletion 11q22-q23
25.5 Percentage of Participants
Percentage of Participants With Genetic Abnormalities
MP (9C): Deletion p53
0.0 Percentage of Participants
Percentage of Participants With Genetic Abnormalities
MP (9C): Trisomy 12
17.0 Percentage of Participants
Percentage of Participants With Genetic Abnormalities
MP (9C): Deletion 13q14
55.3 Percentage of Participants
Percentage of Participants With Genetic Abnormalities
MP (12C): Deletion 6q
3.0 Percentage of Participants
Percentage of Participants With Genetic Abnormalities
MP (12C): Deletion 11q22-q23
21.2 Percentage of Participants
Percentage of Participants With Genetic Abnormalities
MP (12C): Deletion p53
0.0 Percentage of Participants
Percentage of Participants With Genetic Abnormalities
MP (12C): Trisomy 12 (n= 33)
21.2 Percentage of Participants
Percentage of Participants With Genetic Abnormalities
MP (15C): Deletion 6q
4.5 Percentage of Participants
Percentage of Participants With Genetic Abnormalities
MP (15C): Deletion 11q22-q23
31.8 Percentage of Participants
Percentage of Participants With Genetic Abnormalities
MP (15C): Deletion p53
0.0 Percentage of Participants
Percentage of Participants With Genetic Abnormalities
MP (15C): Trisomy 12
18.2 Percentage of Participants
Percentage of Participants With Genetic Abnormalities
MP (15C): Deletion 13q14
59.1 Percentage of Participants
Percentage of Participants With Genetic Abnormalities
MP (18C): Deletion 6q
3.4 Percentage of Participants
Percentage of Participants With Genetic Abnormalities
MP (18C): Deletion 11q22-q23
23.7 Percentage of Participants
Percentage of Participants With Genetic Abnormalities
MP (18C): Deletion p53
0.0 Percentage of Participants
Percentage of Participants With Genetic Abnormalities
MP (18C): Trisomy 12
18.6 Percentage of Participants
Percentage of Participants With Genetic Abnormalities
MP (18C): Deletion 13q14
49.2 Percentage of Participants

SECONDARY outcome

Timeframe: Post-Induction Phase: at 6 months; during Maintenance Phase: at Cycles 9, 12, 15, 18 (cycle length = 2 months); during Follow-Up: at Follow-Up Months 6, 12, 18, 24, 30, 36

Population: ITT Population. Here, 'Number Analyzed' signifies participants who were evaluable for indicated category.

Percentages of participants with positive and negative ZAP-70 expression during the Induction Phase, Maintenance Phase, and Follow-Up were reported. Positive ZAP-70 was defined as ZAP-70 expression by \>/=20% of CLL cells. Negative ZAP-70 was defined as ZAP-70 expression by \<20% of CLL cells.

Outcome measures

Outcome measures
Measure
Rituximab + Fludarabine + Cyclophosphamide
n=84 Participants
Participants received rituximab 375 mg/m\^2 as IV infusion on Day 0 of Cycle 1 and 500 mg/m\^2 as IV infusion on Day 1 of Cycles 2-6 (cycle length = 28 days); fludarabine 25 mg/m\^2 on Days 1-3 of each cycle and cyclophosphamide 250 mg/m\^2 on Days 1-3 of each cycle during the Induction Phase. Participants with a PR or CR and appropriate neutrophil conditions received maintenance treatment with rituximab (375 mg/m\^2 as IV infusion every 2 months) from 3 months after Day 1 Cycle 6 up to a total of 18 doses or up to 3 years after Cycle 6 of Induction Phase.
Percentage of Participants With Positive and Negative Zeta-Chain-Associated Protein Kinase 70 (ZAP-70) Expression
Post-IP: Positive
57.3 Percentage of Participants
Percentage of Participants With Positive and Negative Zeta-Chain-Associated Protein Kinase 70 (ZAP-70) Expression
Post-IP: Negative
42.7 Percentage of Participants
Percentage of Participants With Positive and Negative Zeta-Chain-Associated Protein Kinase 70 (ZAP-70) Expression
MP (9 Cycles): Positive
57.5 Percentage of Participants
Percentage of Participants With Positive and Negative Zeta-Chain-Associated Protein Kinase 70 (ZAP-70) Expression
MP (9 Cycles): Negative
42.5 Percentage of Participants
Percentage of Participants With Positive and Negative Zeta-Chain-Associated Protein Kinase 70 (ZAP-70) Expression
MP (12 Cycles): Positive
62.1 Percentage of Participants
Percentage of Participants With Positive and Negative Zeta-Chain-Associated Protein Kinase 70 (ZAP-70) Expression
MP (12 Cycles): Negative
37.9 Percentage of Participants
Percentage of Participants With Positive and Negative Zeta-Chain-Associated Protein Kinase 70 (ZAP-70) Expression
MP (15 Cycles): Positive
57.1 Percentage of Participants
Percentage of Participants With Positive and Negative Zeta-Chain-Associated Protein Kinase 70 (ZAP-70) Expression
MP (15 Cycles): Negative
42.9 Percentage of Participants
Percentage of Participants With Positive and Negative Zeta-Chain-Associated Protein Kinase 70 (ZAP-70) Expression
MP (18 Cycles): Positive
54.9 Percentage of Participants
Percentage of Participants With Positive and Negative Zeta-Chain-Associated Protein Kinase 70 (ZAP-70) Expression
MP (18 Cycles): Negative
45.1 Percentage of Participants
Percentage of Participants With Positive and Negative Zeta-Chain-Associated Protein Kinase 70 (ZAP-70) Expression
6 Months FU: Positive
63.6 Percentage of Participants
Percentage of Participants With Positive and Negative Zeta-Chain-Associated Protein Kinase 70 (ZAP-70) Expression
6 Months FU: Negative
36.4 Percentage of Participants
Percentage of Participants With Positive and Negative Zeta-Chain-Associated Protein Kinase 70 (ZAP-70) Expression
12 Months FU: Positive
60.0 Percentage of Participants
Percentage of Participants With Positive and Negative Zeta-Chain-Associated Protein Kinase 70 (ZAP-70) Expression
12 Months FU: Negative
40.0 Percentage of Participants
Percentage of Participants With Positive and Negative Zeta-Chain-Associated Protein Kinase 70 (ZAP-70) Expression
18 Months FU: Positive
100.0 Percentage of Participants
Percentage of Participants With Positive and Negative Zeta-Chain-Associated Protein Kinase 70 (ZAP-70) Expression
18 Months FU: Negative
0.0 Percentage of Participants
Percentage of Participants With Positive and Negative Zeta-Chain-Associated Protein Kinase 70 (ZAP-70) Expression
24 Months FU: Positive
59.3 Percentage of Participants
Percentage of Participants With Positive and Negative Zeta-Chain-Associated Protein Kinase 70 (ZAP-70) Expression
24 Months FU: Negative
40.7 Percentage of Participants
Percentage of Participants With Positive and Negative Zeta-Chain-Associated Protein Kinase 70 (ZAP-70) Expression
30 Months FU: Positive
100.0 Percentage of Participants
Percentage of Participants With Positive and Negative Zeta-Chain-Associated Protein Kinase 70 (ZAP-70) Expression
30 Months FU: Negative
0.0 Percentage of Participants
Percentage of Participants With Positive and Negative Zeta-Chain-Associated Protein Kinase 70 (ZAP-70) Expression
36 Months FU: Positive
57.1 Percentage of Participants
Percentage of Participants With Positive and Negative Zeta-Chain-Associated Protein Kinase 70 (ZAP-70) Expression
36 Months FU: Negative
42.9 Percentage of Participants

SECONDARY outcome

Timeframe: Post-Induction Phase: at 6 months; during Maintenance Phase: at Cycles 9, 12, 15, 18 (cycle length = 2 months); during Follow-Up: at Follow-Up Months 6, 12, 18, 24, 30, 36

Population: ITT Population. Here, 'Number Analyzed' signifies participants who were evaluable for indicated category.

Percentages of participants with IgH rearrangement during the Induction Phase, Maintenance Phase, and Follow-Up were reported.

Outcome measures

Outcome measures
Measure
Rituximab + Fludarabine + Cyclophosphamide
n=84 Participants
Participants received rituximab 375 mg/m\^2 as IV infusion on Day 0 of Cycle 1 and 500 mg/m\^2 as IV infusion on Day 1 of Cycles 2-6 (cycle length = 28 days); fludarabine 25 mg/m\^2 on Days 1-3 of each cycle and cyclophosphamide 250 mg/m\^2 on Days 1-3 of each cycle during the Induction Phase. Participants with a PR or CR and appropriate neutrophil conditions received maintenance treatment with rituximab (375 mg/m\^2 as IV infusion every 2 months) from 3 months after Day 1 Cycle 6 up to a total of 18 doses or up to 3 years after Cycle 6 of Induction Phase.
Percentage of Participants With Immunoglobulin Heavy Locus (IgH) Rearrangement
Post-IP
36.2 Percentage of Participants
Percentage of Participants With Immunoglobulin Heavy Locus (IgH) Rearrangement
MP (9 Cycles)
37.1 Percentage of Participants
Percentage of Participants With Immunoglobulin Heavy Locus (IgH) Rearrangement
MP (12 Cycles)
20.0 Percentage of Participants
Percentage of Participants With Immunoglobulin Heavy Locus (IgH) Rearrangement
MP (15 Cycles)
29.4 Percentage of Participants
Percentage of Participants With Immunoglobulin Heavy Locus (IgH) Rearrangement
MP (18 Cycles)
33.3 Percentage of Participants
Percentage of Participants With Immunoglobulin Heavy Locus (IgH) Rearrangement
6 Months FU
100.0 Percentage of Participants
Percentage of Participants With Immunoglobulin Heavy Locus (IgH) Rearrangement
12 Months FU
37.9 Percentage of Participants
Percentage of Participants With Immunoglobulin Heavy Locus (IgH) Rearrangement
18 Months FU
50.0 Percentage of Participants
Percentage of Participants With Immunoglobulin Heavy Locus (IgH) Rearrangement
24 Months FU
33.3 Percentage of Participants
Percentage of Participants With Immunoglobulin Heavy Locus (IgH) Rearrangement
30 Months FU
0.0 Percentage of Participants
Percentage of Participants With Immunoglobulin Heavy Locus (IgH) Rearrangement
36 Months FU
45.8 Percentage of Participants

Adverse Events

Rituximab + Fludarabine + Cyclophosphamide

Serious events: 35 serious events
Other events: 82 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Rituximab + Fludarabine + Cyclophosphamide
n=86 participants at risk
Participants received rituximab 375 mg/m\^2 as IV infusion on Day 0 of Cycle 1 and 500 mg/m\^2 as IV infusion on Day 1 of Cycles 2-6 (cycle length = 28 days); fludarabine 25 mg/m\^2 on Days 1-3 of each cycle and cyclophosphamide 250 mg/m\^2 on Days 1-3 of each cycle during the Induction Phase. Participants with a PR or CR and appropriate neutrophil conditions received maintenance treatment with rituximab (375 mg/m\^2 as IV infusion every 2 months) from 3 months after Day 1 Cycle 6 up to a total of 18 doses or up to 3 years after Cycle 6 of Induction Phase.
Vascular disorders
Capillary leak syndrome
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Blood and lymphatic system disorders
Anaemia
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Blood and lymphatic system disorders
Febrile neutropenia
9.3%
8/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Blood and lymphatic system disorders
Neutropenia
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Cardiac disorders
Myocardial infarction
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Gastrointestinal disorders
Crohn's disease
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Gastrointestinal disorders
Diarrhoea
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Gastrointestinal disorders
Malabsorption
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Gastrointestinal disorders
Pancreatitis
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Gastrointestinal disorders
Vomiting
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
General disorders
Chest pain
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
General disorders
General physical health deterioration
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
General disorders
Pyrexia
7.0%
6/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Hepatobiliary disorders
Cholelithiasis
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Hepatobiliary disorders
Hepatic mass
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Immune system disorders
Cytokine release syndrome
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Infections and infestations
Gastroenteritis
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Infections and infestations
Influenza
2.3%
2/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Infections and infestations
Meningitis
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Infections and infestations
Pharyngitis
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Infections and infestations
Pneumonia
8.1%
7/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Infections and infestations
Respiratory tract infection
2.3%
2/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Infections and infestations
Sinusitis
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Infections and infestations
Viral myocarditis
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Injury, poisoning and procedural complications
Jaw fracture
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Metabolism and nutrition disorders
Hypercalcaemia
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Metabolism and nutrition disorders
Tumour lysis syndrome
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Acoustic neuroma
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Basal cell carcinoma
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Bladder neoplasm
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Nervous system disorders
Cerebral haemorrhage
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Nervous system disorders
Syncope
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Renal and urinary disorders
Renal failure
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Respiratory, thoracic and mediastinal disorders
Pulmonary embolism
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Respiratory, thoracic and mediastinal disorders
Pulmonary sarcoidosis
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Surgical and medical procedures
Vertebroplasty
1.2%
1/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.

Other adverse events

Other adverse events
Measure
Rituximab + Fludarabine + Cyclophosphamide
n=86 participants at risk
Participants received rituximab 375 mg/m\^2 as IV infusion on Day 0 of Cycle 1 and 500 mg/m\^2 as IV infusion on Day 1 of Cycles 2-6 (cycle length = 28 days); fludarabine 25 mg/m\^2 on Days 1-3 of each cycle and cyclophosphamide 250 mg/m\^2 on Days 1-3 of each cycle during the Induction Phase. Participants with a PR or CR and appropriate neutrophil conditions received maintenance treatment with rituximab (375 mg/m\^2 as IV infusion every 2 months) from 3 months after Day 1 Cycle 6 up to a total of 18 doses or up to 3 years after Cycle 6 of Induction Phase.
Blood and lymphatic system disorders
Leukopenia
17.4%
15/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Blood and lymphatic system disorders
Lymphopenia
27.9%
24/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Blood and lymphatic system disorders
Neutropenia
60.5%
52/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Blood and lymphatic system disorders
Thrombocytopenia
20.9%
18/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Gastrointestinal disorders
Constipation
7.0%
6/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Gastrointestinal disorders
Diarrhoea
18.6%
16/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Gastrointestinal disorders
Nausea
30.2%
26/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Gastrointestinal disorders
Vomiting
17.4%
15/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
General disorders
Asthenia
16.3%
14/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
General disorders
Chills
7.0%
6/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
General disorders
Pyrexia
36.0%
31/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Infections and infestations
Nasopharyngitis
31.4%
27/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Infections and infestations
Pneumonia
8.1%
7/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Infections and infestations
Respiratory tract infection
16.3%
14/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Infections and infestations
Upper respiratory tract infection
8.1%
7/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Infections and infestations
Urinary tract infection
9.3%
8/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Musculoskeletal and connective tissue disorders
Back pain
5.8%
5/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Respiratory, thoracic and mediastinal disorders
Cough
8.1%
7/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.
Skin and subcutaneous tissue disorders
Rash
5.8%
5/86 • Baseline through end of Follow-Up (up to 92 months)
Safety Population included all participants who received at least one dose of study drug.

Additional Information

Medical Communications

Hoffmann-La Roche

Phone: 800--821--8590

Results disclosure agreements

  • Principal investigator is a sponsor employee The Study being conducted under this Agreement is part of the Overall Study. Investigator is free to publish in reputable journals or to present at professional conferences the results of the Study, but only after the first publication or presentation that involves the Overall Study. The Sponsor may request that Confidential Information be deleted and/ or the publication be postponed in order to protect the Sponsor's intellectual property rights.
  • Publication restrictions are in place

Restriction type: OTHER