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A Study of Induction and Maintenance Treatment With MabThera (Rituximab) in Patients With Indolent B-Cell Nonfollicular Lymphomas

An Open-label Study of Fludarabine and Cyclophosphamide Plus MabThera Followed by Maintenance With MabThera on Failure-free Survival in Treatment-naïve Patients With Advanced Indolent B-cell Nonfollicular Lymphoma

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01153971
Enrollment
47
Registered
2010-06-30
Start date
2005-07-20
Completion date
2010-09-24
Last updated
2017-08-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Non-Hodgkin's Lymphoma

Brief summary

This study will evaluate the efficacy and safety of MabThera in combination chemotherapy, followed by maintenance treatment with MabThera. The anticipated time on study treatment is 1-2 years, and the target sample size is \<100 individuals.

Interventions

DRUGrituximab

1

Sponsors

Hoffmann-La Roche
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* adult patients 18-65 years of age; * previously untreated indolent nonfollicular non-Hodgkin's lymphoma; * active disease; * \>=3 involved sites.

Exclusion criteria

* typical chronic lymphocytic leukemia; * other malignancies within 3 years before study, except basal or squamous cell skin cancer or cancer in situ of the cervix; * systemic corticosteroid use for \>1 month; * significant cardiovascular disease; * central nervous system involvement; * hepatitis B or C virus infection, or HIV infection.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants Remaining Failure-Free After 2 Years From Treatment Start DateMonth 28Percentage of participants who at 2 years from the start of treatment remained free from documented disease progression, relapse, or death. Failure status was based on tumor evaluation performed on Month 28. Participants who did not have a tumor evaluation at Month 28 were counted as failures.

Secondary

MeasureTime frameDescription
Percentage of Participants Achieving a Best Overall Response of CR, CRu, or PR by Study PhaseBaseline, Months 4, 7 (Induction Phase), 11, 16 (Maintenance Phase),22, 28, 34, and 40(Follow-Up Phase)CR: complete disappearance of all symptoms/objective signs of disease (enlarged lymph nodes, hepatomegaly, splenomegaly) for at least 3 months following definitive re-evaluation at end of therapy. For initial bone marrow involvement, clearance of bone marrow documented by biopsy, normalization of blood counts with granulocytes greater than (\>)1,500 per microliter (/µL), hemoglobin \>12 grams per deciliter (g/dL), platelets \>100,000/µL. CRu: disappearance of all symptoms and nearly all measurable lesions, but persistence of some radiologic abnormalities with normalization of all biologic abnormalities; normalization of the performance status for at least 3 months after the definite evaluation of therapy. PR: at least 50 percent (%) reduction of measurable and evaluable lymphoma involvement for at least 4 weeks without occurrence of new manifestations, normalization of blood counts. Participants without evaluation at end of induction/maintenance phase were considered nonresponders.
Percentage of Participants Achieving a Response by Response Type and Study PhaseBaseline, Months 4, 7, 11, 16, 22, 28, 34, and 40CR: complete disappearance of all symptoms/objective signs of disease (enlarged lymph nodes, hepatomegaly, splenomegaly) for at least 3 months following definitive re-evaluation at end of therapy. For initial bone marrow involvement, clearance of bone marrow documented by biopsy, normalization of blood counts with granulocytes greater than (\>)1,500 per microliter (/µL), hemoglobin \>12 grams per deciliter (g/dL), platelets \>100,000/µL. CRu: disappearance of all symptoms and nearly all measurable lesions, but persistence of some radiologic abnormalities with normalization of all biologic abnormalities; normalization of the performance status for at least 3 months after the definite evaluation of therapy. PR: at least 50 percent (%) reduction of measurable and evaluable lymphoma involvement for at least 4 weeks without occurrence of new manifestations, normalization of blood counts. Participants without evaluation at end of induction/maintenance phase were considered nonresponders.
Failure-Free Survival (FFS), Percentage of Participants Estimated to be Free of Documented Disease Progression, Relapse, or DeathBaseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40FFS data were analyzed using Kaplan-Meier survival analysis. FFS was measured from the date of treatment start to the date of documented disease progression, relapse, or death from any cause. Responding participants, participants who were lost to follow up, who withdrew consent, or dropped out due to adverse events (AE) were censored at their last assessment date. The reported data refer to values up to 40 months.
FFS - Percentage of Participants With an EventBaseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40FFS was measured from the date of treatment start to the date of documented disease progression, relapse, or death from any cause. Responding participants, participants who were lost to follow up, who withdrew consent, or who dropped out due to AEs were censored at their last assessment date.
FFS - Time to EventBaseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40FFS was measured from the date of treatment start to the date of documented disease progression, relapse or death from any cause. Responding participants, participants who were lost to follow up, who withdrew consent or dropped out due to AEs were censored at their last assessment date. NOTE: The mean survival time and its standard error were underestimated because the largest observation was censored and the estimation was restricted to the largest event time.
Overall Survival (OS) - Percentage of Participants Estimated to be AliveBaseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40OS data were analyzed using Kaplan-Meier survival analysis. OS was defined as the time from first dosage of study drug to the date of death from any cause. Reported data refer to values up to 40 months.
OS - Percentage of Participants With an EventBaseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40.OS was defined as the time from first dosage of study drug to the date of death from any cause.
Disease-Free Survival (DFS) - Percentage of Participants Estimated to be Disease-FreeBaseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40DFS data were analyzed using Kaplan-Meier survival analysis. DFS was defined for all participants who achieved a complete response (CR/CRu) at month 1 after the completion of treatment of the induction phase (Month 7 of the study) and was measured from the time of CR to the date of relapse. Participants without relapse were censored at their last assessment date. Participants who died due to tumour burden were considered in relapse. Participants who died due to any other causes were censored as of the death date. The reported data refer to values up to 40 months.
OS - Time to EventBaseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40.Overall survival was defined as the time from first dosage of study drug to the date of death from any cause.
DFS - Time to EventBaseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40.DFS was defined for all participants who achieved a complete response (CR/CRu) at month 1 after the completion of treatment of the induction phase (month 7 of the study) and was measured from the time of complete response to the date of relapse. Participants without relapse were censored at their last assessment date. Participants who died due to tumour burden were considered in relapse. Participants who died due to any other causes were censored on the death date. NOTE: The mean survival time and its standard error were underestimated because the largest observation was censored and the estimation was restricted to the largest event time.
Progression-free Survival (PFS) - Percentage of Participants Estimated to Be Progress FreeBaseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40PFS data were analyzed using Kaplan-Meier survival analysis. PFS was defined as the time from treatment start to the date of documented disease progression. Reported data refer to values up to 40 months.
PFS - Percentage of Participants With an EventBaseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40Progression-free survival was defined as the time from the date of treatment start to the date of documented disease progression.
PFS - Time to EventBaseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40Progression-free survival was defined as the time from treatment start to the date of documented disease progression. NOTE: The mean survival time and its standard error were underestimated because the largest observation was censored and the estimation was restricted to the largest event time.
Duration of Response (DR) - Percentage of Participants Expected to Maintain a ResponseBaseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40DR data were analyzed using Kaplan-Meier survival analysis. DR was defined for all participants who achieved a response (CR, CRu and PR) at month 1 after the completion of treatment of the induction phase (Month 7 of the study) and was measured from the time of response until the date of progression or relapse. Participants without relapse or progression were censored at their last assessment date. Participants who died due to tumour were considered in progression. Participants who died for any other cause were censored to the death date.
DR - Percentage of Participants With an EventBaseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40DR was defined for all participants who achieved a response (CR, CRu and PR) at month 1 after the completion of treatment of the induction phase (Month 7 of the study) and was measured from the time of response until the date of progression or relapse. Participants without relapse or progression were censored at their last assessment date. Participants who died due to tumour were considered in progression. Participants who died for any other cause were censored to the death date.
DR - Time to EventBaseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40DR was defined for all participants who achieved a response (CR, CRu and PR) at month 1 after the completion of treatment of the induction phase (Month 7 of the study) and was measured from the time of response until the date of progression or relapse. Participants without relapse or progression were censored at their last assessment date. Participants who died due to tumour were considered in progression. Participants who died for any other cause were censored to the death date.
DFS - Percentage of Participants With an EventBaseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40.DFS was defined for all patients who achieved a complete response (CR/CRu) at month 1 after the completion of treatment of the induction phase (month 7 of the study) and was measured from the time of complete response to the date of relapse. Participants without relapse were censored at their last assessment date. Participants who died due to tumour burden were considered in relapse. Participants who died due to any other causes were censored on the death date.

Countries

Italy

Participant flow

Participants by arm

ArmCount
Rituximab + Fludarabine + Cyclophosphamide
Cycle 1 (28-day cycle): Participants received fludarabine 25 mg/m\^2 IV and cyclophosphamide 250 mg/m\^2 IV on Days 1, 2, and 3 and rituximab 375 mg/m\^2 IV on Day 8, followed by 20 days of rest. Cycles 2-3 and Cycle 6 (28-day cycle): Participants received rituximab 375 mg/m\^2 IV on Day 1 and fludarabine 25 mg/m\^2 IV and cyclophosphamide 250 mg/m\^2 IV on Days 2, 3, and 4 followed by 24 days of rest. Cycles 4-5 (28-day cycle): Participants received fludarabine 25 mg/m\^2 IV and cyclophosphamide 250 mg/m\^2 IV on Days 2, 3, and 4 and rituximab 375 mg/m\^2 IV on Day 14, followed by 14 days of rest. Cycles 7-10 (2-month cycle): Following 2 months rest after the completion of Cycle 6, participants with CR, CRu, or PR, received maintenance therapy with rituximab 375 mg/m\^2 IV on Day 1, followed by 2 months rest; cycle was repeated 4 times.
46
Total46

Withdrawals & dropouts

PeriodReasonFG000
Follow-up (Months 17-40 of Study)Adverse Event1
Follow-up (Months 17-40 of Study)Disease progression2
Follow-up (Months 17-40 of Study)Protocol Violation1
Induction Phase (Months 1 to 7 of Study)Adverse Event2
Induction Phase (Months 1 to 7 of Study)Withdrawal by Subject1
Maintenance Phase (Months 8-16 of Study)Adverse Event2
Maintenance Phase (Months 8-16 of Study)Clinical relapse1

Baseline characteristics

CharacteristicRituximab + Fludarabine + Cyclophosphamide
Age, Continuous57.3 years
STANDARD_DEVIATION 8.2
Sex: Female, Male
Female
18 Participants
Sex: Female, Male
Male
28 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
47 / 47
serious
Total, serious adverse events
16 / 47

Outcome results

Primary

Percentage of Participants Remaining Failure-Free After 2 Years From Treatment Start Date

Percentage of participants who at 2 years from the start of treatment remained free from documented disease progression, relapse, or death. Failure status was based on tumor evaluation performed on Month 28. Participants who did not have a tumor evaluation at Month 28 were counted as failures.

Time frame: Month 28

Population: ITT population

ArmMeasureValue (NUMBER)
Rituximab + Fludarabine + CyclophosphamidePercentage of Participants Remaining Failure-Free After 2 Years From Treatment Start Date73.9 percentage of participants
p-value: <0.0001t-test, 2 sided
Secondary

DFS - Percentage of Participants With an Event

DFS was defined for all patients who achieved a complete response (CR/CRu) at month 1 after the completion of treatment of the induction phase (month 7 of the study) and was measured from the time of complete response to the date of relapse. Participants without relapse were censored at their last assessment date. Participants who died due to tumour burden were considered in relapse. Participants who died due to any other causes were censored on the death date.

Time frame: Baseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40.

Population: ITT population; only participants who achieved a complete response (CR/CRu) at month 1 after the completion of treatment of the induction phase were included in the analysis.

ArmMeasureValue (NUMBER)
Rituximab + Fludarabine + CyclophosphamideDFS - Percentage of Participants With an Event10.34 percentage of participants
Secondary

DFS - Time to Event

DFS was defined for all participants who achieved a complete response (CR/CRu) at month 1 after the completion of treatment of the induction phase (month 7 of the study) and was measured from the time of complete response to the date of relapse. Participants without relapse were censored at their last assessment date. Participants who died due to tumour burden were considered in relapse. Participants who died due to any other causes were censored on the death date. NOTE: The mean survival time and its standard error were underestimated because the largest observation was censored and the estimation was restricted to the largest event time.

Time frame: Baseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40.

Population: ITT population; only participants who achieved a complete response (CR/CRu) at month 1 after the completion of treatment of the induction phase were included in the analysis.

ArmMeasureValue (MEAN)Dispersion
Rituximab + Fludarabine + CyclophosphamideDFS - Time to Event32.51 monthsStandard Error 0.58
Secondary

Disease-Free Survival (DFS) - Percentage of Participants Estimated to be Disease-Free

DFS data were analyzed using Kaplan-Meier survival analysis. DFS was defined for all participants who achieved a complete response (CR/CRu) at month 1 after the completion of treatment of the induction phase (Month 7 of the study) and was measured from the time of CR to the date of relapse. Participants without relapse were censored at their last assessment date. Participants who died due to tumour burden were considered in relapse. Participants who died due to any other causes were censored as of the death date. The reported data refer to values up to 40 months.

Time frame: Baseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40

Population: ITT population; only participants who achieved a complete response (CR/CRu) at month 1 after the completion of treatment of the induction phase were included in the analysis.

ArmMeasureValue (NUMBER)
Rituximab + Fludarabine + CyclophosphamideDisease-Free Survival (DFS) - Percentage of Participants Estimated to be Disease-Free87.70 percentage of participants
Secondary

DR - Percentage of Participants With an Event

DR was defined for all participants who achieved a response (CR, CRu and PR) at month 1 after the completion of treatment of the induction phase (Month 7 of the study) and was measured from the time of response until the date of progression or relapse. Participants without relapse or progression were censored at their last assessment date. Participants who died due to tumour were considered in progression. Participants who died for any other cause were censored to the death date.

Time frame: Baseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40

Population: ITT population; only participants who achieved a response (CR, CRu and PR) at month 1 after the completion of treatment of the induction phase of the study were included in the analysis.

ArmMeasureValue (NUMBER)
Rituximab + Fludarabine + CyclophosphamideDR - Percentage of Participants With an Event9.09 percentage of participants
Secondary

DR - Time to Event

DR was defined for all participants who achieved a response (CR, CRu and PR) at month 1 after the completion of treatment of the induction phase (Month 7 of the study) and was measured from the time of response until the date of progression or relapse. Participants without relapse or progression were censored at their last assessment date. Participants who died due to tumour were considered in progression. Participants who died for any other cause were censored to the death date.

Time frame: Baseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40

Population: ITT population: only participants who achieved a response (CR, CRu and PR) at month 1 after the completion of treatment of the induction phase of the study were included in the analysis.

ArmMeasureValue (MEAN)Dispersion
Rituximab + Fludarabine + CyclophosphamideDR - Time to Event32.19 monthsStandard Error 0.72
Secondary

Duration of Response (DR) - Percentage of Participants Expected to Maintain a Response

DR data were analyzed using Kaplan-Meier survival analysis. DR was defined for all participants who achieved a response (CR, CRu and PR) at month 1 after the completion of treatment of the induction phase (Month 7 of the study) and was measured from the time of response until the date of progression or relapse. Participants without relapse or progression were censored at their last assessment date. Participants who died due to tumour were considered in progression. Participants who died for any other cause were censored to the death date.

Time frame: Baseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40

Population: ITT population; only participants who achieved a response (CR, CRu and PR) at month 1 after the completion of treatment of the induction phase of the study were included in the analysis.

ArmMeasureValue (NUMBER)
Rituximab + Fludarabine + CyclophosphamideDuration of Response (DR) - Percentage of Participants Expected to Maintain a Response90.07 percentage of participants
Secondary

Failure-Free Survival (FFS), Percentage of Participants Estimated to be Free of Documented Disease Progression, Relapse, or Death

FFS data were analyzed using Kaplan-Meier survival analysis. FFS was measured from the date of treatment start to the date of documented disease progression, relapse, or death from any cause. Responding participants, participants who were lost to follow up, who withdrew consent, or dropped out due to adverse events (AE) were censored at their last assessment date. The reported data refer to values up to 40 months.

Time frame: Baseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40

Population: ITT population

ArmMeasureValue (NUMBER)
Rituximab + Fludarabine + CyclophosphamideFailure-Free Survival (FFS), Percentage of Participants Estimated to be Free of Documented Disease Progression, Relapse, or Death90.12 percentage of participants
Secondary

FFS - Percentage of Participants With an Event

FFS was measured from the date of treatment start to the date of documented disease progression, relapse, or death from any cause. Responding participants, participants who were lost to follow up, who withdrew consent, or who dropped out due to AEs were censored at their last assessment date.

Time frame: Baseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40

Population: ITT population

ArmMeasureValue (NUMBER)
Rituximab + Fludarabine + CyclophosphamideFFS - Percentage of Participants With an Event8.7 percentage of participants
Secondary

FFS - Time to Event

FFS was measured from the date of treatment start to the date of documented disease progression, relapse or death from any cause. Responding participants, participants who were lost to follow up, who withdrew consent or dropped out due to AEs were censored at their last assessment date. NOTE: The mean survival time and its standard error were underestimated because the largest observation was censored and the estimation was restricted to the largest event time.

Time frame: Baseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40

Population: ITT population

ArmMeasureValue (MEAN)Dispersion
Rituximab + Fludarabine + CyclophosphamideFFS - Time to Event39.14 monthsStandard Error 0.7
Secondary

OS - Percentage of Participants With an Event

OS was defined as the time from first dosage of study drug to the date of death from any cause.

Time frame: Baseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40.

Population: ITT population

ArmMeasureValue (NUMBER)
Rituximab + Fludarabine + CyclophosphamideOS - Percentage of Participants With an Event2.17 percentage of participants
Secondary

OS - Time to Event

Overall survival was defined as the time from first dosage of study drug to the date of death from any cause.

Time frame: Baseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40.

Population: ITT population

ArmMeasureValue (MEAN)
Rituximab + Fludarabine + CyclophosphamideOS - Time to Event38.6 months
Secondary

Overall Survival (OS) - Percentage of Participants Estimated to be Alive

OS data were analyzed using Kaplan-Meier survival analysis. OS was defined as the time from first dosage of study drug to the date of death from any cause. Reported data refer to values up to 40 months.

Time frame: Baseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40

Population: ITT population

ArmMeasureValue (NUMBER)
Rituximab + Fludarabine + CyclophosphamideOverall Survival (OS) - Percentage of Participants Estimated to be Alive97.44 percentage of participants
Secondary

Percentage of Participants Achieving a Best Overall Response of CR, CRu, or PR by Study Phase

CR: complete disappearance of all symptoms/objective signs of disease (enlarged lymph nodes, hepatomegaly, splenomegaly) for at least 3 months following definitive re-evaluation at end of therapy. For initial bone marrow involvement, clearance of bone marrow documented by biopsy, normalization of blood counts with granulocytes greater than (\>)1,500 per microliter (/µL), hemoglobin \>12 grams per deciliter (g/dL), platelets \>100,000/µL. CRu: disappearance of all symptoms and nearly all measurable lesions, but persistence of some radiologic abnormalities with normalization of all biologic abnormalities; normalization of the performance status for at least 3 months after the definite evaluation of therapy. PR: at least 50 percent (%) reduction of measurable and evaluable lymphoma involvement for at least 4 weeks without occurrence of new manifestations, normalization of blood counts. Participants without evaluation at end of induction/maintenance phase were considered nonresponders.

Time frame: Baseline, Months 4, 7 (Induction Phase), 11, 16 (Maintenance Phase),22, 28, 34, and 40(Follow-Up Phase)

Population: ITT population

ArmMeasureGroupValue (NUMBER)
Rituximab + Fludarabine + CyclophosphamidePercentage of Participants Achieving a Best Overall Response of CR, CRu, or PR by Study PhaseInduction Phase95.7 percentage of participants
Rituximab + Fludarabine + CyclophosphamidePercentage of Participants Achieving a Best Overall Response of CR, CRu, or PR by Study PhaseMaintenance Phase80.4 percentage of participants
Secondary

Percentage of Participants Achieving a Response by Response Type and Study Phase

CR: complete disappearance of all symptoms/objective signs of disease (enlarged lymph nodes, hepatomegaly, splenomegaly) for at least 3 months following definitive re-evaluation at end of therapy. For initial bone marrow involvement, clearance of bone marrow documented by biopsy, normalization of blood counts with granulocytes greater than (\>)1,500 per microliter (/µL), hemoglobin \>12 grams per deciliter (g/dL), platelets \>100,000/µL. CRu: disappearance of all symptoms and nearly all measurable lesions, but persistence of some radiologic abnormalities with normalization of all biologic abnormalities; normalization of the performance status for at least 3 months after the definite evaluation of therapy. PR: at least 50 percent (%) reduction of measurable and evaluable lymphoma involvement for at least 4 weeks without occurrence of new manifestations, normalization of blood counts. Participants without evaluation at end of induction/maintenance phase were considered nonresponders.

Time frame: Baseline, Months 4, 7, 11, 16, 22, 28, 34, and 40

Population: ITT population

ArmMeasureGroupValue (NUMBER)
Rituximab + Fludarabine + CyclophosphamidePercentage of Participants Achieving a Response by Response Type and Study PhaseCR at end of induction phase41.3 percentage of participants
Rituximab + Fludarabine + CyclophosphamidePercentage of Participants Achieving a Response by Response Type and Study PhaseCR at end of maintenance phase45.7 percentage of participants
Rituximab + Fludarabine + CyclophosphamidePercentage of Participants Achieving a Response by Response Type and Study PhaseCR at final assessment45.7 percentage of participants
Rituximab + Fludarabine + CyclophosphamidePercentage of Participants Achieving a Response by Response Type and Study PhaseCRu at end of induction phase21.7 percentage of participants
Rituximab + Fludarabine + CyclophosphamidePercentage of Participants Achieving a Response by Response Type and Study PhaseCRu at end of maintenance phase15.2 percentage of participants
Rituximab + Fludarabine + CyclophosphamidePercentage of Participants Achieving a Response by Response Type and Study PhaseCRu at final assessment19.6 percentage of participants
Rituximab + Fludarabine + CyclophosphamidePercentage of Participants Achieving a Response by Response Type and Study PhasePR at end of induction phase32.6 percentage of participants
Rituximab + Fludarabine + CyclophosphamidePercentage of Participants Achieving a Response by Response Type and Study PhasePR at end of maintenance phase19.6 percentage of participants
Rituximab + Fludarabine + CyclophosphamidePercentage of Participants Achieving a Response by Response Type and Study PhasePR at final assessment13.0 percentage of participants
Rituximab + Fludarabine + CyclophosphamidePercentage of Participants Achieving a Response by Response Type and Study PhaseRelapse at end of induction phase0 percentage of participants
Rituximab + Fludarabine + CyclophosphamidePercentage of Participants Achieving a Response by Response Type and Study PhaseRelapse at end of maintenance phase0 percentage of participants
Rituximab + Fludarabine + CyclophosphamidePercentage of Participants Achieving a Response by Response Type and Study PhaseRelapse at final assessment2.2 percentage of participants
Rituximab + Fludarabine + CyclophosphamidePercentage of Participants Achieving a Response by Response Type and Study PhaseUnknown at end of induction phase4.3 percentage of participants
Rituximab + Fludarabine + CyclophosphamidePercentage of Participants Achieving a Response by Response Type and Study PhaseUnknown at end of maintenance phase19.6 percentage of participants
Rituximab + Fludarabine + CyclophosphamidePercentage of Participants Achieving a Response by Response Type and Study PhaseUnknown at final assessment19.6 percentage of participants
Secondary

PFS - Percentage of Participants With an Event

Progression-free survival was defined as the time from the date of treatment start to the date of documented disease progression.

Time frame: Baseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40

Population: ITT population

ArmMeasureValue (NUMBER)
Rituximab + Fludarabine + CyclophosphamidePFS - Percentage of Participants With an Event8.70 percentage of participants
Secondary

PFS - Time to Event

Progression-free survival was defined as the time from treatment start to the date of documented disease progression. NOTE: The mean survival time and its standard error were underestimated because the largest observation was censored and the estimation was restricted to the largest event time.

Time frame: Baseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40

Population: ITT population

ArmMeasureValue (MEAN)Dispersion
Rituximab + Fludarabine + CyclophosphamidePFS - Time to Event39.14 monthsStandard Error 0.7
Secondary

Progression-free Survival (PFS) - Percentage of Participants Estimated to Be Progress Free

PFS data were analyzed using Kaplan-Meier survival analysis. PFS was defined as the time from treatment start to the date of documented disease progression. Reported data refer to values up to 40 months.

Time frame: Baseline, Months 1-8, 10-12, 14, 16, 22, 28, 34 and 40

Population: ITT population

ArmMeasureValue (NUMBER)
Rituximab + Fludarabine + CyclophosphamideProgression-free Survival (PFS) - Percentage of Participants Estimated to Be Progress Free90.12 percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026