CHAIROS Study A Study of MabThera/Rituxan (Rituximab) Maintenance Therapy in Patients With B-Cell Chronic Lymphocytic Leukemia (CLL) Naive to Chemotherapy

July 11, 2017 updated by: Hoffmann-La Roche

CHAIROS - Effect of Early Brief Intensification by Chemoimmunotherapy With FCR Followed by FR and Rituximab Maintenance on Clinical Response in Chemo-naïve Patients With B-CLL

This study will evaluate the efficacy and safety of intense combination treatment including MabThera/Rituxan (rituximab), followed by MabThera/Rituxan maintenance therapy in patients with B-cell CLL who are naive to chemotherapy. The anticipated time on study treatment is 2.5 years.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
43

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Austria
      • Innsbruck, Austria, 6020
        • Tiroler Landeskrankenanstalten Ges.M.B.H.; Innere Medizin Abt. Für Hämatologie & Onkologie
      • Leoben, Austria, 8700
        • LKH Hochsteiermark; Abt. für Innere Medizin
      • Linz, Austria, 4010
        • Kh Der Barmherzigen Schwestern; Interne I X
      • Linz, Austria, 4020
        • A.Ö. Krankenhaus Der Elisabethinen Linz; I. Interne Abt.
      • Linz, Austria, 4020
        • Kepler Universitätskliniken GmbH - Med Campus III; I. Medizinische Abteilung
      • Rankweil, Austria, 6830
        • Landeskrankenhaus Rankweil; Interne E
      • Salzburg, Austria, 5020
        • Lkh Salzburg - Univ. Klinikum Salzburg; Iii. Medizinische Abt.
      • Wels, Austria, 4600
        • Klinikum Kreuzschwestern Wels; Iii. Interne Abt.

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Adult patients, >/= 18 years of age
  • B-cell CLL
  • No previous chemotherapy, radiotherapy, or immunotherapy

Exclusion Criteria:

  • Reduced organ function, or bone marrow dysfunction not due to CLL
  • Patients with a history of other malignancies within 2 years prior to study entry, except for adequately treated cancer in situ of the cervix, or basal or squamous cell skin cancer
  • Patients with a history of severe cardiac disease.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: MabThera/Rituxan
Drug: rituximab [MabThera/Rituxan]
Every 4 weeks for 6 cycles of induction, followed by maintenance therapy every 3 months x 8
Drug: fludarabine
Every 4 weeks, 6 cycles
Drug: cyclophosphamide
Every 4 weeks, 3 cycles

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Percentage of Participants With a Best Clinical Response of Clinical Remission (CR)
Time Frame: Weeks 1, 5, 9, 12, 13, 17, 21 and 24
Best clinical response was determined according to the National Cancer Institute (NCI) Clinical and Clinical plus (+) Radiological evaluations by central response assessment. Assessment of response was performed according to the NCI revised guidelines for the diagnosis and treatment of chronic lymphocytic lymphoma (CLL) with additional computerized tomography (CT) scan evaluation of lymphadenopathy. Per NCI guidelines, CR requires all of the following criteria at least 2 months after the last treatment: no lymphadenopathy (Ly)/ hepatomegaly/ splenomegaly/constitutional symptoms; neutrophils greater than (>)1500 per microliter (/µL), platelets (PL) >100,000/µL, hemoglobin (Hb) >11.0 grams per deciliter (g/dL), lymphocytes (LC) (less than) <4000/µL, bone marrow (BM) sample must be normocellular for age, <30% LC.
Weeks 1, 5, 9, 12, 13, 17, 21 and 24

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Percentage of Participants With the Best Clinical Response by Visit (Clinical Assessment)
Time Frame: Weeks 12 and 24 and at Final Staging (Week 4 after last maintenance dose)
Best clinical response was determined according to the NCI clinical evaluation and through radiological assessment. CR, CRi, CRu, partial remission (PR), partial remission with toxicity associated (PRTox), progressive disease (PD), and stable disease (SD) were evaluated. Assessment of response was performed according to the NCI revised guidelines for the diagnosis and treatment of CLL with additional CT scan evaluation of lymphadenopathy during the treatment period (Radiological). Response assessment for interim (Week 12), end of induction (Week 24) and at Final Staging (4 weeks after last maintenance dose). Last observation carried forward (LOCF) method was used for missing data. Percentages are based on the number of nonmissing observations within each stratum.
Weeks 12 and 24 and at Final Staging (Week 4 after last maintenance dose)
Percentage of Participants With the Best Clinical Response by Visit (Clinical + Radiological Assessment)
Time Frame: Weeks 12 and 24 and at Final Staging (Week 4 after last maintenance dose)
Best clinical response was determined according to the NCI clinical evaluation and through radiological assessment. CR, CRi, CRu, PR, PRTox, PD, and SD were evaluated. Assessment of response was performed according to the NCI revised guidelines for the diagnosis and treatment of CLL with additional CT scan evaluation of lymphadenopathy during the treatment period (Radiological). Response assessment for interim (Week 12), end of induction (Week 24) and at Final Staging (4 weeks after last maintenance dose). LOCF method was used for missing data. Percentages are based on the number of nonmissing observations within each stratum.
Weeks 12 and 24 and at Final Staging (Week 4 after last maintenance dose)
Time to Next Treatment - Percentage of Participants With an Event
Time Frame: Weeks 1, 5, 9, 12, 13, 17, 21 and 24 and every 8 weeks for 64 Weeks and every 6 months
Time to next treatment was calculated as the number of days from either discontinuation of the study drug or the administration of the last dose, until the participants needed next treatment.
Weeks 1, 5, 9, 12, 13, 17, 21 and 24 and every 8 weeks for 64 Weeks and every 6 months
Time to Next Treatment - Time to Event
Time Frame: Weeks 1, 5, 9, 12, 13, 17, 21 and 24 and every 8 weeks for 64 Weeks and every 6 months
Time to next treatment was calculated as the number of days from either discontinuation of the study drug or the administration of the last dose, until the participants needed next treatment.
Weeks 1, 5, 9, 12, 13, 17, 21 and 24 and every 8 weeks for 64 Weeks and every 6 months
Percentage of Participants With Adverse Events (AEs)
Time Frame: Day 1 of Cycles 1, 2, 3, 4, 5, and 6 to 28 days after the last trial medication.
AEs were recorded from the date of first medication administration until 28 days after the last trial medication.
Day 1 of Cycles 1, 2, 3, 4, 5, and 6 to 28 days after the last trial medication.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Hoffmann-La Roche

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 11, 2005

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 24, 2012

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 24, 2012

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 3, 2013

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 11, 2013

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
December 17, 2013

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 18, 2017

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 11, 2017

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2017

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • ML18434

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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