A Study of MabThera (Rituximab) in Primary Central Nervous System Lymphoma.
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|ClinicalTrials.gov 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
|Condition or disease||Intervention/treatment||Phase|
|Lymphoma||Drug: rituximab [MabThera/Rituxan] Drug: Methotrexate Drug: Cytarabine||Phase 2|
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||5 participants|
|Intervention Model:||Single Group Assignment|
|Masking:||None (Open Label)|
|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|
Drug: rituximab [MabThera/Rituxan]
- 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.
- 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.
- Percentage of Participants With Initial CR or CRu and Subsequent Disease Relapse [ Time Frame: Week 24 ]
- 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.
- 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.
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 ClinicalTrials.gov identifier (NCT number): NCT00517699
|Greenfield Park, Quebec, Canada, J4V 2H1|
|Quebec City, Quebec, Canada, G1J 1Z4|
|Study Director:||Clinical Trials||Hoffmann-La Roche|