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A Study of MabThera (Rituximab) in Primary Central Nervous System Lymphoma.

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00517699
Recruitment Status : Terminated (Study was terminated early due to lack of enrollment.)
First Posted : August 17, 2007
Results First Posted : August 8, 2014
Last Update Posted : August 8, 2014
Information provided by (Responsible Party):
Hoffmann-La Roche

Brief Summary:
This study will evaluate the efficacy and safety of MabThera plus high dose methotrexate plus high dose cytarabine in patients with central nervous system non-Hodgkin's lymphoma. Eligible patients will receive a treatment regimen consisting of MabThera (750mg/m2 iv) plus methotrexate (8g/m2 iv) given at intervals up to week 22, plus cytarabine (2g/m2 iv) at week 11 and week 22. The anticipated time on study treatment is 3-12 months, and the target sample size is <100 individuals.

Condition or disease Intervention/treatment Phase
Lymphoma Drug: rituximab [MabThera/Rituxan] Drug: Methotrexate Drug: Cytarabine Phase 2

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 5 participants
Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: An Open Label Study of the Effect of Rituxan, High Dose Methotrexate and High Dose Cytarabine on Response Rate in Patients With Primary Central Nervous System Lymphoma.
Study Start Date : September 2007
Actual Primary Completion Date : March 2009
Actual Study Completion Date : March 2009

Arm Intervention/treatment
Experimental: 1 Drug: rituximab [MabThera/Rituxan]
750mg/m2 iv

Drug: Methotrexate
8g/m2 iv

Drug: Cytarabine
2g/m2 iv

Primary Outcome Measures :
  1. Percentage of Participants With a Complete Response (CR) or Unconfirmed CR (CRu) [ Time Frame: Week 24 ]
    CR: complete disappearance of all enhancing abnormalities on contrast-enhanced cranial magnetic resonance imaging (MRI); no evidence of active ocular lymphoma as defined by absence of cells in the vitreous and resolution of any previously documented retinal or optic nerve infiltrates; negative cerebrospinal fluid (CSF) cytology; at the time of CR determination, participant had discontinued use of all corticosteroids for at least 2 weeks. CRu requires fulfillment of CR criteria but with these limitations: Fulfills CR criteria but had continued requirement for corticosteroid therapy at any dose; small but persistent enhancing abnormality on MRI related to biopsy or focal hemorrhage; persistent minor abnormality on follow-up ophthalmologic exam (related to persistent non-malignant cells in vitreous, or alterations in retina/optic nerve not consistent with tumor infiltration) if the abnormality is unlikely to represent ocular lymphoma.

  2. Percentage of Participants With a CR, CRu or Partial Response (PR) [ Time Frame: Week 24 ]
    PR: greater than or equal to (≥) 50 percent (%) decrease in the contrast-enhancing lesion seen on MRI as compared with the baseline images; (2) Corticosteroid dose was irrelevant to the determination of PR; for participants with ocular disease, ophthalmologic exam must show a decrease in vitreous cell count or retina/optic nerve cellular infiltrate but may have continued to show persistent malignant or suspicious cells; for participants with CSF positive for neoplastic cells, CSF cytology may be negative or continue to show persistent malignant or suspicious cells in patients with ≥50% decrease in the primary brain lesions; no new sites of disease.

Secondary Outcome Measures :
  1. Percentage of Participants With Initial CR or CRu and Subsequent Disease Relapse [ Time Frame: Week 24 ]
  2. Overall Survival [ Time Frame: Time of last follow-up assessment between Day 1 and 3 years ]
    Time from entry into trial until death of any cause. Participants who were alive at the time of the analysis were censored at the date of the last follow-up assessment. Participants without follow-up assessment were censored at the day of last dose and participants with no post baseline information were censored at the baseline date.

  3. Progression-Free Survival (PFS) [ Time Frame: Week 24 ]
    PFS was defined as the time interval between the entry into trial and occurrence of one of the following events: progression of disease (PD) or death as a result of primary central nervous system lymphoma (PCNSL). Participants who were withdrawn from the study without documented progression and for whom there existed case report form (CRF) evidence that evaluations had been made, were censored at the date of last tumor assessment when participant was known to be progression free. Participants without postbaseline tumor assessments but known to be alive were censored at the time of randomization. PD required a ≥25% increase in the contrast-enhanced lesion seen on MRI as compared with baseline or best response (comparison should be made to the smallest of multiple lesions); progression of ocular disease as indicated by an increase in vitreous cell count or progressive retinal or optic nerve infiltration, appearance of any new lesion or site of disease during or at the end of therapy.

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • adult patients, 18-80 years of age;
  • histological diagnosis of primary central nervous system lymphoma;
  • B-cell proliferation verified by positive staining for CD20;
  • >=1 measurable lesion.

Exclusion Criteria:

  • prior chemotherapy, other than corticosteroids, >=6 weeks before and after diagnosis or surgery;
  • history of prior cranial irradiation;
  • evidence of plurisystemic non-Hodgkin's lymphoma;
  • other active malignant disease (other than basal cell or squamous cell cancer of skin,or cancer in situ of cervix;
  • uncontrolled active infection.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00517699

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Canada, Quebec
Greenfield Park, Quebec, Canada, J4V 2H1
Quebec City, Quebec, Canada, G1J 1Z4
Sponsors and Collaborators
Hoffmann-La Roche
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Study Director: Clinical Trials Hoffmann-La Roche

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Responsible Party: Hoffmann-La Roche Identifier: NCT00517699     History of Changes
Other Study ID Numbers: ML19652
First Posted: August 17, 2007    Key Record Dates
Results First Posted: August 8, 2014
Last Update Posted: August 8, 2014
Last Verified: July 2014
Additional relevant MeSH terms:
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Neoplasms by Histologic Type
Lymphoproliferative Disorders
Lymphatic Diseases
Immunoproliferative Disorders
Immune System Diseases
Antineoplastic Agents, Immunological
Antineoplastic Agents
Immunologic Factors
Physiological Effects of Drugs
Antirheumatic Agents
Abortifacient Agents, Nonsteroidal
Abortifacient Agents
Reproductive Control Agents
Antimetabolites, Antineoplastic
Molecular Mechanisms of Pharmacological Action
Dermatologic Agents
Enzyme Inhibitors
Folic Acid Antagonists
Immunosuppressive Agents
Nucleic Acid Synthesis Inhibitors
Antiviral Agents
Anti-Infective Agents