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LeukemiaPhase 3LLC2007SANCT00645606

Rituximab Maintenance Versus Observation After First-line Immunochemotherapy by FCR in Older Patients With Chronic Lymphocytic Leukemia

A Phase 3 study testing Rituximab in people with Leukemia, run by University Hospital, Tours at 1 site in France.

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

RATIONALE: Classical chemotherapy does not cure advanced chronic lymphocytic leukemia (CLL) despite new drugs. Rituximab is a monoclonal antibody directed against CD20 surface antigen on B lymphocytes and leads to apoptosis of CD20 positive B lymphocytes. Read more about this study

Who is it for?
Ages 65 years and older
Conditions the study is for
Leukemia
What is being tested?
Rituximab
Could I receive a placebo?
No, everyone receives an active treatment
How many people
542 participants
Where
1 siteFrance
Study dates
Dec 2007to Jul 2017
Phase
Phase 3
Are there results?
None posted in the registry

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 65 years and older
  • All sexes
  • No healthy volunteers
  • Older adult

Who may be able to join

  • B-CLL
  • Matutes score 4 or 5
  • Binet stages B or C
  • Age > 65 years old
  • No previous treatment of CLL by chemotherapy, radiotherapy or immunotherapy, except glucocorticoids < 1 month
  • Patient's written informed consent
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  • Life expectancy > 6 months
  • Patients having received the full induction phase with 4 FC and 6 rituximab courses (with/without dose adjustments as per protocol)
  • Complete or partial response according to NCI and iwCLL criteria at the end of induction phase
  • Recovery from FCR toxicities
  • Patient willingness to continue on protocol

Who cannot join

  • Binet stage A
  • ECOG performance status 2 or more
  • Presence of a 17p deletion by FISH (> 10% positive cores)
  • Clinically significant auto-immune cytopenia, Coombs-positive hemolytic anemia as judged by the treating physician
  • Patients with a history of another malignancy in complete remission less than 5 years, except basal cell skin cancer or tumor treated curatively by surgery
  • Concomitant disease requiring prolonged use of corticosteroids (> 1 month)
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  • Any severe co-morbidities such as NYHA Class III or IV heart failure, myocardial infarction within 6 months, unstable angina, ventricular tachyarrhythmias requiring ongoing treatment, severe uncontrolled myocardiopathy, uncontrolled hypertension, severe chronic obstructive pulmonary disease with hypoxemia, or uncontrolled diabetes mellitus.
  • CIRS (Cumulative Illness rating Scale) > 6
  • Known hypersensitivity to murine proteins or to any of the study drugs or to their components
  • Transformation into an aggressive B-cell malignancy (e.g. diffuse large cell lymphoma, Hodgkin lymphoma) or prolymphocytic leukemia
  • Active bacterial, viral or fungal infection
  • Seropositivity HIV, hepatitis C or hepatitis B (unless clearly due to vaccination)
  • Total bilirubin, alkaline phosphatases and aminotransferases > 2 x ULN
  • Creatinine clearance < 60 ml/min calculated according to the formula of Cockcroft and Gault
  • Any coexisting medical or psychological condition that would preclude participation to the required study procedures
  • Patient with mental deficiency preventing proper understanding of the requirements of treatment

Trial locations and contacts

1 site in 1 country.

France1 site
  • French Innovative leukemia Organization

    Tours, 37044

Other trials in France

About this study

Official title: Single-agent Rituximab as Maintenance Treatment Versus Observation After Combined Induction Immunochemotherapy With Fludarabine, Cyclophosphamide and Rituximab in Patients Older Than 65 Years With Previously Untreated Chronic Lymphocytic Leukemia: a Phase III Trial of FILO

RATIONALE: Classical chemotherapy does not cure advanced chronic lymphocytic leukemia (CLL) despite new drugs. Rituximab is a monoclonal antibody directed against CD20 surface antigen on B lymphocytes and leads to apoptosis of CD20 positive B lymphocytes. The highest response rate yet published in the treatment of first-line CLL has been obtained by the association of fludarabine, cyclophosphamide and rituximab (FCR). Now, the question is whether this response can be improved, as some trials showed that eradication of minimal residual disease (MRD) in CLL is associated with a longer treatment-free and overall survival. Maintenance therapy using rituximab has been recently approved as a means of prolonging remission in patients with indolent non Hodgkin's lymphoma. Maintenance therapy with rituximab could be of interest in treatment of MRD in CLL and prolonging remission and survival times.

PURPOSE: The overall purpose of the study is to determine the value of immunotherapy maintenance with single agent rituximab in comparison with no further treatment (observation ) for previously untreated chronic lymphocytic leukaemia in elderly (>65 years) patients who respond to induction immunochemotherapy with FCR.

Read the detailed description

OBJECTIVES:

Primary

  • To demonstrate superiority, in terms of 3-year progression-free survival (PFS), of rituximab maintenance over observation in patients who are in complete or partial response (CR or PR) after induction therapy comprising fludarabine, cyclophosphamide, and rituximab.

Secondary

  • To determine event-free survival, disease-free survival, overall survival, and time to next treatment, all from time of randomization.
  • To determine overall response rate (CR and PR) according to NCI and iwCLL criteria
  • To assess the rate of phenotypic response (minimal residual disease).
  • To assess duration of phenotypic and NCI and iwCLL clinical responses.
  • To determine response rates and time-related parameters in biological subgroups.
  • To determine rates of treatment-related adverse events.
  • To evaluate CD4/CD8 counts, immunoglobulin levels, and incidence of Coombs-positive hemolytic anemia.
  • To study pharmacokinetics of rituximab during induction and maintenance.
  • To evaluate the prognostic impact of the immunoglobulin FcγRIIIA genotype.
  • To assess quality of life.
  • To study pharmacoeconomics.

OUTLINE: This is a multicenter study. Randomization is stratified according to response to induction therapy (complete response [CR] vs partial response [PR]), IGHV mutational status, and 11q deletion.

Patients receive rituximab IV on days 1 and 14 of courses 1-2 and on day 1 of courses 3 and 4. Patients also receive oral fludarabine and oral cyclophosphamide once daily on days 2-4 of course 1 and on days 1-3 of courses 2-4. Courses are administered every 28 days. Patients achieving CR or PR are randomized 1:1 to maintenance arm or observation arm.

  • Arm A: Patients receive rituximab IV every 2 months in the absence of disease progression or unacceptable toxicity for a maximum duration of 24 months (12 infusions).
  • Arm B: Patients undergo observation only.

After completion of study therapy, patients are followed every 3 months for 1 year and then every 6 months for 2 years.

Conditions
Leukemia
Being tested
Rituximab
Keywords
B-cell chronic lymphocytic leukemia, Maintenance in first-line treatment, Elderly patients
Medical subject headings
Leukemia, Leukemia, Lymphocytic, Chronic, B-Cell

What participants receive

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

  • RituximabBiological

    Also called Mabthera

    rituximab :500 mg/m² every 8 weeks during 2 years

Study groups in NCT00645606
Study groupRoleWhat they receive
ObservationNo interventionObservation every 8 weeks during 2 years
rituximab armExperimentalrituximab :500 mg/m² every 8 weeks during 2 years
Receives: Biological: Rituximab

What is being measured

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

  1. Progression-free survival

    Progression-free survival is defined as the time from randomization to the first occurrence of disease progression, relapse or death from any cause; using iwCLL criteria

    Measured: randomization until disease progression or death

Secondary outcomes (9)
  1. Event-free survival

    Event-free survival is defined as the time from randomization to the occurrence of one of the following events, whichever occurs first: disease progression or relapse, death from any cause, initiation of any new anti-CLL therapy, and secondary malignancy

    Measured: randomization until disease progression, death, new CLL treatment, and secondary cancer

  2. Disease-free survival

    Disease-free survival is defined as the time from first documented CR to relapse

    Measured: first documented CR until relapse

  3. Overall survival

    Overall survival is defined as the time from randomization to death from any cause

    Measured: randomization until death

  4. Time to next treatment

    Time to next treatment is defined as the time from randomization to initiation of a new CLL-related treatment

    Measured: randomization until new CLL treatment

  5. Overall response rate

    Overall response rate is defined by the percentage of participants with an overall response; CR or PR according to NCI criteria and CR, CRi or PR according to iwCLL

    Measured: baseline up to approximately 66 months

  6. Phenotypic response rate

    Phenotypic response rate is defined by the percentage of participants with minimal residual disease negativity as measured by six-colour flow cytometry with a sensitivity of 0.7 x 10-5. MRD is considered as undetectable when the positivity criteria, defined as the presence of at least 20 CLL cells, is not reached

    Measured: randomization up to approximately 60 months

  7. Rates of treatment-related adverse events

    Rate of treatment-related adverse events (plus adverse events of particular interest) is defined as the percentage of participants with adverse events assessed according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) version 3.0 and version 2.0. for hematological toxicity

    Measured: safety since baseline

  8. Pharmacokinetics of rituximab

    Pharmacokinetics of rituximab during induction and rituximab maintenance

    Measured: baseline up to approximately 36 months

  9. Quality of life

    Change from baseline in EORTC Quality of Life Questionnaire Core 30

    Measured: baseline up to approximately 30 months

Timeline

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

  1. First posted27 Mar 2008 (estimated)
  2. Study startDec 2007
  3. Primary completionFeb 2014
  4. Study completionJul 2017

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
542 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00645606
Sponsor's protocol ID
CDR0000589684
Other IDs
CHRUT-LLC-2007-SA, CHRUT-PHRN05-CD, INCA-RECF0497, 2007-001015-28
Acronym
LLC2007SA
Status last verified
Jul 2017
First submitted
26 Mar 2008
Last updated
1 Aug 2017
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Dartigeas C, Van Den Neste E, Leger J, Maisonneuve H, Berthou C, Dilhuydy MS, De Guibert S, Lepretre S, Bene MC, Nguyen-Khac F, Letestu R, Cymbalista F, Rodon P, Aurran-Schleinitz T, Vilque JP, Tournilhac O, Mahe B, Laribi K, Michallet AS, Delmer A, Feugier P, Levy V, Delepine R, Colombat P, Leblond V; CLL 2007 SA investigators; French Innovative Leukemia Organization (FILO). Rituximab maintenance versus observation following abbreviated induction with chemoimmunotherapy in elderly patients with previously untreated chronic lymphocytic leukaemia (CLL 2007 SA): an open-label, randomised phase 3 study. Lancet Haematol. 2018 Feb;5(2):e82-e94. doi: 10.1016/S2352-3026(17)30235-1. Epub 2017 Dec 20.

    PubMed 29275118

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Rituximab in people with Leukemia, run by University Hospital, Tours at 1 site in France.

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 11 inclusion and 16 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 1 Aug 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Progression-free survival (time frame: randomization until disease progression or death). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00645606, which also lists 1 linked publication.

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 1 Aug 2017.

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