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Lymphocytic Leukemia, ChronicPhase 3NCT00718549

A Study to Assess the Effect of Maintenance Treatment With Rituximab Versus No Treatment in Participants With Progressive B-Cell Chronic Lymphocytic Leukemia (CLL)

A Phase 3 study testing Cladribine, Cyclophosphamide and Rituximab in people with Lymphocytic Leukemia, Chronic, run by Hoffmann-La Roche at 6 sites in 2 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study will assess the effect of maintenance treatment with rituximab in comparison with observation period (no treatment), in participants with progressive B-cell CLL who have had previous first-line induction treatment with rituximab, cladribine and cyclophosphamide (RCC regimen). Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Lymphocytic Leukemia, Chronic
What is being tested?
Cladribine, Cyclophosphamide and Rituximab
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
128 participants
Where
6 sitesin 2 countries
Study dates
21 Jul 2009to 14 Sep 2015
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Immunologically confirmed diagnosis of B-cell CLL
  • Rai stage I-IV disease with evidence of progression
  • No previous chemotherapy, radiotherapy, or immunotherapy for B-cell CLL
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 2

Who cannot join

  • Active secondary malignancy or transformation to aggressive lymphoma
  • Medical condition requiring chronic use of oral corticosteroids at a dose of 1 mg/kg or 60 mg/m^2 over 2 weeks
  • Prior treatment with interferon, rituximab or another monoclonal antibody, immunosuppressive treatment or radiotherapy before inclusion to the study
  • History of other malignancies within 2 years before study entry, except for dequately treated carcinoma in situ of the cervix; basal or squamous cell skin cancer; low grade, early stage localized prostate cancer treated surgically with curative intent; good prognosis ductal carcinoma in situ (DCIS) of the breast treated with lumpectomy alone with curative intent

Trial locations and contacts

6 sites in 2 countries.

6 sites in 2 countries

Poland5 sites
  • Medical University, Independent Public Clinical Hospital; Dept. of Hematology, SPSK

    Bialystok, 15-276

  • Szpital Uniwersytecki W Krakowie; Klinika Hematologii

    Krakow, 31-501

  • Medical University School; Dept. of Haematology

    Lodz, 93-510

  • Istytut Hematologii i Transfuzjologii; Hematologia

    Warsaw, 02 776

  • Medical Uni of Wroclaw; Hematology

    Wroclaw, 50-367

Other trials in Poland

Belarus1 site
  • City Clinical Hospital #9

    Minsk, 220116

Other trials in Belarus

About this study

Official title: A Randomized, Open Label Study to Assess the Effect of Maintenance Treatment With Mabthera (Rituximab) Versus No Treatment, After Induction Treatment With Rituximab, Cladribine and Cyclophosphamide (RCC) on Progression-Free Survival in Previously Untreated Patients With Progressive B-Cell Chronic Lymphocytic Leukemia

This study will assess the effect of maintenance treatment with rituximab in comparison with observation period (no treatment), in participants with progressive B-cell CLL who have had previous first-line induction treatment with rituximab, cladribine and cyclophosphamide (RCC regimen). After 6 months of RCC induction therapy, participants will be randomized either to receive maintenance treatment with rituximab or to receive no treatment (observation only) for 96 weeks. Participants completing maintenance/observation period will be followed-up for approximately 3 years.

Being tested
Cladribine, Cyclophosphamide, Rituximab
Medical subject headings
Leukemia, Lymphocytic, Chronic, B-Cell

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • CladribineDrug

    Cladribine will be adminiatered at a dose of 0.12 mg/kg/day as IV infusion on Days 2-4 of each 28-day cycle during induction phase.

  • CyclophosphamideDrug

    Cyclophosphamide will be administred at a dose of 250 mg/m^2/day as IV infusion over 15-30 minutes on Days 2-4 of each 28-day cycle during induction phase.

  • RituximabDrug

    Also called MabThera

    Rituximab will be administered at a dose of 375 mg/m^2 as IV infusion on Day 1 of Cycle 1 and at a dose of 500 mg/m^2 as IV infusion on Day 1 of Cycles 2-6 during induction phase. Rituximab will be administered at a dose of 375 mg/m^2 as IV infusion on Day 1 of each 12-week cycle during maintenance phase.

Study groups in NCT00718549
Study groupRoleWhat they receive
Induction: Rituximab, Cladribine, CyclophosphamideExperimentalParticipants will receive rituximab at a dose of 375 milligrams per meter squared (mg/m^2) as intravenous (IV) infusion on Day 1, cladribine at a dose of 0.12 milligrams per kilogram per day (mg/kg/day) as IV infusion on Days 2-4, and cyclophosphamide at a dose of 250 mg/m^2/day as IV infusion over 15-30 minutes on Days 2-4 in Cycle 1. Then, rituximab at a dose of 500 mg/m^2 as IV infusion on Day 1, cladribine at a dose of 0.12 mg/kg/day as IV infusion on Days 2-4, and cyclophosphamide at a dose of 250 mg/m^2/day as IV infusion over 15-30 minutes on Days 2-4 will be administered in Cycles 2-6. Each cycle will be of 28 days in duration.
Receives: Drug: Cladribine; Drug: Cyclophosphamide; Drug: Rituximab
Maintenance Arm: RituximabExperimentalParticipants with PR or CR after induction phase who will be randomized to maintenance arm will receive rituximab treatment for 8 cycles. Twelve weeks after the last induction cycle, participants will receive rituximab at a dose of 375 mg/m^2 as IV infusion on Day 1 of each 12-week cycle until disease progression (up to approximately 96 weeks).
Receives: Drug: Rituximab
Observation Arm: No InterventionNo interventionParticipants with PR or CR after induction phase who will be randomized to observation arm will not receive any intervention. Participants will be assessed every 4-weeks for the first 12 weeks and every 12-weeks afterwards up to 96 weeks.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Percentage of Participants With Disease Progression (PD), Relapse, or Death Due to Any Cause Assessed According to the National Cancer Institute (NCI) Revised Guidelines for the Diagnosis and Treatment of Chronic Lymphocytic Leukemia (CLL)

    PD occurred if any of the following events was observed: appearance of any new lesion, such as enlarged lymph nodes (greater than [>]1.5 centimeters [cm]), splenomegaly, hepatomegaly, or other organ infiltrates; an increase of greater than or equal to (>/=) 50 percent (%) in greatest determined diameter of any previous site; an increase in the previously noted enlargement of the liver or spleen by >/=50%; an increase in the number of blood lymphocytes by >/=50% with B-lymphocytes >/=5000 per microliter (/mcL); transformation to a more aggressive histology; occurrence of cytopenia (neutropenia, anemia, or thrombocytopenia) attributable to CLL.

    Measured: From randomization to PD, Relapse, or death due to any cause (overall approximately 5 years)

  2. Progression-Fee Survival (PFS) Assessed According to the NCI Revised Guidelines for the Diagnosis and Treatment of CLL

    PFS was defined as the time from date of randomization to date of PD, relapse, or death due to any cause. Participants alive with no evidence of PD or relapse were censored at date of last clinical examination. PD occurred if any of the following events was observed: appearance of any new lesion, such as enlarged lymph nodes (>1.5 cm), splenomegaly, hepatomegaly, or other organ infiltrates; an increase of >/=50% in greatest determined diameter of any previous site; an increase in the previously noted enlargement of the liver or spleen by >/=50%; an increase in the number of blood lymphocytes by >/=50% with B-lymphocytes >/=5000/mcL; transformation to a more aggressive histology; occurrence of cytopenia (neutropenia, anemia, or thrombocytopenia) attributable to CLL.

    Measured: From randomization to PD, relapse, or death due to any cause (overall approximately 5 years)

Secondary outcomes (7)
  1. Percentage of Participants With CR or PR Assessed According to the NCI Revised Guidelines for the Diagnosis and Treatment of CLL

    CR was achieved if participants met all of the following criteria >/= 2 months after last treatment: no lymphadenopathy (Ly)/ hepatomegaly/ splenomegaly/constitutional symptoms; neutrophils >1500/mcL, platelets (PL) >100,000/mcL, hemoglobin (Hb) >11.0 grams per deciliter (g/dL), bone marrow (BM) sample must be normocellular for age with lymphocytes <30% of nucleated cells. PR: a reduction in Ly (decrease in lymph node size by >/=50% compared to pre-treatment state, no increase in any lymph node, no new enlarged lymph node); a reduction of >/=50% from pre-treatment state in the lymphocytes count, and in enlargement of the spleen or liver; any one of the following: neutrophils >1500/mcL, PL >100,000/mcL (or 50% improvement from baseline), Hb >11.0 g/dL (or 50% improvement from baseline).

    Measured: 8 weeks after the last dose of rituximab during induction treatment (Week 29) and 12 weeks after the end of maintenance treatment or observation phase (Week 129)

  2. Percentage of Participants With Minimal Residual Disease (MRD) According to Rawstron Criteria in Participants With CR or PR

    MRD was defined by the presence of tumor cells in bone marrow, using 4-color flow cytometry of cluster of differentiation (CD)19/CD5/CD20/CD79b. MRD was assessed in participants who achieved CR or PR. CR: if participants met all of the following criteria >/=2 months after last treatment: no Ly/ hepatomegaly/ splenomegaly/constitutional symptoms; neutrophils >1500/mcL, PL >100,000/mcL, Hb >11.0 g/dL, BM sample must be normocellular for age with lymphocytes <30% of nucleated cells. PR: a reduction in Ly; a reduction of >/=50% from pre-treatment state in the lymphocytes count, and in enlargement of the spleen or liver; any one of the following: neutrophils >1500/mcL, PL >100,000/mcL (or 50% improvement from baseline), Hb >11.0 g/dL (or 50% improvement from baseline).

    Measured: 8 weeks after the last dose of rituximab during induction treatment (Week 29) and 12 weeks after the end of maintenance treatment or observation phase (Week 129)

  3. PFS Assessed According to the NCI Revised Guidelines for the Diagnosis and Treatment of CLL According to Clinical and Biochemical Factors

    PFS: time from date of randomization to date of PD, relapse, or death from any cause. Participants alive with no evidence of PD or relapse were censored at date of last clinical examination. PD: appearance of any new lesion, such as enlarged lymph nodes (>1.5 cm), splenomegaly, hepatomegaly, or other organ infiltrates; an increase of >/=50% in greatest determined diameter of any previous site; an increase in previously noted enlargement of liver or spleen by >/=50%; an increase in number of blood lymphocytes by >/=50% with B-lymphocytes >/=5000/mcL; transformation to a more aggressive histology; or occurrence of cytopenia attributable to CLL. Rai Stage: staging for CLL, based on lymphocyte, red blood cell and platelet counts and size of lymph nodes, spleen, and liver. Rai Stage I or II are intermediate risk CLL and Rai Stage III or IV are high risk CLL. This outcome measure assessed relationship between clinical markers and clinical outcome (PFS) after study treatment.

    Measured: From randomization to PD, relapse, or death due to any cause (overall approximately 5 years)

  4. Percentage of Participants With CR or PR Assessed According to the NCI Revised Guidelines for the Diagnosis and Treatment of CLL According to Clinical and Biochemical Factors at Week 29

    CR was achieved if participants met all of the following criteria >/= 2 months after last treatment: no Ly/ hepatomegaly/ splenomegaly/constitutional symptoms; neutrophils >1500/mcL, PL >100,000/mcL, Hb >11.0 g/dL, BM sample must be normocellular for age with lymphocytes <30% of nucleated cells. PR: a reduction in Ly; a reduction of >/=50% from pre-treatment state in the lymphocytes count, and in enlargement of the spleen or liver; any one of the following: neutrophils >1500/mcL, PL >100,000/mcL (or 50% improvement from baseline), Hb >11.0 g/dL (or 50% improvement from baseline). Rai Stage: staging for CLL, based on lymphocyte, red blood cell and platelet counts and size of lymph nodes, spleen, and liver. Rai Stage I or II are intermediate risk CLL and Rai Stage III or IV are high risk CLL. This outcome measure assessed the relationship between clinical markers and clinical outcome (response) after study treatment.

    Measured: 8 weeks after the last dose of rituximab during induction treatment (Week 29)

  5. Percentage of Participants With CR or PR Assessed According to the NCI Revised Guidelines for the Diagnosis and Treatment of CLL According to Clinical and Biochemical Factors at Week 129

    CR was achieved if participants met all of the following criteria >/=2 months after last treatment: no Ly/ hepatomegaly/ splenomegaly/constitutional symptoms; neutrophils >1500/mcL, PL >100,000/mcL, Hb >11.0 g/dL, BM sample must be normocellular for age with lymphocytes <30% of nucleated cells. PR: a reduction in Ly; a reduction of >/=50% from pre-treatment state in the lymphocytes count, and in enlargement of the spleen or liver; any one of the following: neutrophils >1500/mcL, PL >100,000/mcL (or 50% improvement from baseline), Hb >11.0 g/dL (or 50% improvement from baseline). Rai Stage: staging for CLL, based on lymphocyte, red blood cell and platelet counts and size of lymph nodes, spleen, and liver. Rai Stage I or II are intermediate risk CLL and Rai Stage III or IV are high risk CLL. This outcome measure assessed the relationship between clinical markers and clinical outcome (response) after study treatment.

    Measured: 12 weeks after the end of maintenance treatment or observation phase (Week 129)

  6. Percentage of Participants With MRD According to Rawstron Criteria in Participants With CR or PR According to Clinical and Biochemical Factors at Week 29

    MRD: the presence of tumor cells in bone marrow, using 4-color flow cytometry of CD19/CD5/CD20/CD79b. MRD was assessed in participants who achieved CR or PR. CR (>/=2 months after last treatment): no Ly/ hepatomegaly/ splenomegaly/constitutional symptoms; neutrophils >1500/mcL, PL >100,000/mcL, Hb >11.0 g/dL, BM sample must be normocellular for age with lymphocytes <30% of nucleated cells. PR: a reduction in Ly; a reduction of >/=50% from pre-treatment state in the lymphocytes count, and in enlargement of the spleen or liver; any one of the following: neutrophils >1500/mcL, PL >100,000/mcL (or 50% improvement from baseline), Hb >11.0 g/dL (or 50% improvement from baseline). Rai Stage: staging for CLL, based on lymphocyte, red blood cell and platelet counts and size of lymph nodes, spleen, and liver. Rai Stage I or II are intermediate risk CLL and Rai Stage III or IV are high risk CLL. This outcome measure assessed relationship between clinical markers and MRD after study treatment.

    Measured: 8 weeks after the last dose of rituximab during induction treatment (Week 29)

  7. Percentage of Participants With MRD According to Rawstron Criteria in Participants With CR or PR According to Clinical and Biochemical Factors at Week 129

    MRD: the presence of tumor cells in bone marrow, using 4-color flow cytometry of CD19/CD5/CD20/CD79b. MRD was assessed in participants who achieved CR or PR. CR (>/=2 months after last treatment): no Ly/ hepatomegaly/ splenomegaly/constitutional symptoms; neutrophils >1500/mcL, PL >100,000/mcL, Hb >11.0 g/dL, BM sample must be normocellular for age with lymphocytes <30% of nucleated cells. PR: a reduction in Ly; a reduction of >/=50% from pre-treatment state in the lymphocytes count, and in enlargement of the spleen or liver; any one of the following: neutrophils >1500/mcL, PL >100,000/mcL (or 50% improvement from baseline), Hb >11.0 g/dL (or 50% improvement from baseline). Rai Stage: staging for CLL, based on lymphocyte, red blood cell and platelet counts and size of lymph nodes, spleen, and liver. Rai Stage I or II are intermediate risk CLL and Rai Stage III or IV are high risk CLL. This outcome measure assessed relationship between clinical markers and MRD after study treatment.

    Measured: 12 weeks after the end of maintenance treatment or observation phase (Week 129)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted18 Jul 2008 (estimated)
  2. Study start21 Jul 2009
  3. Primary completion14 Sep 2015
  4. Study completion14 Sep 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
128 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00718549
Sponsor's protocol ID
ML21283
Other IDs
2008-001140-39, 2008
Status last verified
Nov 2017
First submitted
16 Jul 2008
Last updated
20 Aug 2018
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Cladribine, Cyclophosphamide and Rituximab in people with Lymphocytic Leukemia, Chronic, run by Hoffmann-La Roche at 6 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 20 Aug 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 6 sites in Poland, Belarus. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 20 Aug 2018). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Percentage of Participants With Disease Progression (PD), Relapse, or Death Due to Any Cause Assessed According to the National Cancer Institute (NCI) Revised Guidelines for the Diagnosis and Treatment of Chronic Lymphocytic Leukemia (CLL) (time frame: From randomization to PD, Relapse, or death due to any cause (overall approximately 5 years)). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Aug 2018.

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