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Rituximab in Treating Patients With Refractory or Relapsed Primary CNS Lymphoma

A Phase II Study Of Anti-CD20 Monoclonal Antibody (Rituximab) Therapy For Patients With Refractory Or Relapsed Primary CNS Lymphoma (PCNSL)

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00072449
Enrollment
12
Registered
2003-11-06
Start date
2004-05-31
Completion date
2010-06-30
Last updated
2013-08-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Lymphoma

Keywords

primary central nervous system non-Hodgkin lymphoma

Brief summary

RATIONALE: Monoclonal antibodies, such as rituximab, can locate cancer cells and either kill them or deliver cancer-killing substances to them without harming normal cells. PURPOSE: Phase II trial to study the effectiveness of rituximab in treating patients who have refractory or relapsed primary CNS lymphoma.

Detailed description

OBJECTIVES: Primary * Determine the radiographic response proportion in patients with refractory or recurrent primary CNS lymphoma treated with rituximab. Secondary * Determine the progression-free and overall survival of patients treated with this drug. * Determine the toxicity profile of this drug in these patients. OUTLINE: This is a multicenter study. Patients receive rituximab IV on days 1, 8, 15, and 22. Treatment repeats every 28 days for 2 courses in the absence of disease progression or unacceptable toxicity. Patients may receive additional courses of rituximab off study at the discretion of the treating physician. Patients are followed every 2 months. PROJECTED ACCRUAL: A total of 15-25 patients will be accrued for this study within 5-9 months.

Interventions

BIOLOGICALrituximab

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

DISEASE CHARACTERISTICS: * Histologically confirmed primary CNS lymphoma based on 1 of the following: * Histologically confirmed non-Hodgkin's B-cell lymphoma by brain biopsy or resection * Positive cerebrospinal fluid (CSF) cytology or immunohistochemical diagnosis of CSF monoclonality with or without measurable intracranial disease * Histologically confirmed vitreal lymphoma with measurable intracranial tumor * CD20 positive by brain biopsy * Measurable (greater than 1 cm in diameter) tumor by CT scan or MRI * Progressed during first-line chemotherapy and/or radiotherapy OR relapsed after initial successful treatment * No systemic lymphoma by CT scan of the chest, abdomen, and pelvis with contrast * No leptomeningeal lymphoma by lumbar puncture for CNS cytology/flow cytometry * No ocular lymphoma by slit lamp examination PATIENT CHARACTERISTICS: Age * 18 and over Performance status * Karnofsky 60-100% Life expectancy * Not specified Hematopoietic * Absolute neutrophil count at least 1,500/mm\^3 * Platelet count at least 100,000/mm\^3 * Hemoglobin at least 9.0 g/dL Hepatic * Bilirubin less than 1.5 mg/dL * Transaminases less than 4 times upper limit of normal Renal * Creatinine less than 1.5 mg/dL Other * Not pregnant or nursing * Negative pregnancy test * Fertile patients must use effective contraception during and for 1 year after study participation * HIV negative * Mini mental status examination score at least 15 * No concurrent serious infection * No other medical illness that would preclude study treatment * No other malignancy within the past 5 years except curatively treated basal cell or squamous cell skin cancer or carcinoma in situ PRIOR CONCURRENT THERAPY: Biologic therapy * More than 90 days since prior biologic therapy * No prior rituximab * No concurrent prophylactic growth factors (e.g., filgrastim \[G-CSF\] or sargramostim \[GM-CSF\]) Chemotherapy * See Disease Characteristics * At least 3 weeks since prior chemotherapy (6 weeks for nitrosoureas) Endocrine therapy * Not specified Radiotherapy * See Disease Characteristics * At least 3 months since prior radiotherapy Surgery * Not specified Other * Recovered from prior therapy * More than 90 days since prior investigational drugs * More than 90 days since prior use of a therapeutic device

Design outcomes

Primary

MeasureTime frameDescription
Radiographic Response1 month, 2 months and then q3monthsit at any time point patient progresses no more scans are required, patient is off study

Secondary

MeasureTime frameDescription
Progression-free Survivalpt had MRI q3monthspt had MRI every 3 months
Overall Survival47 monthssurvival was evaluated q 2months
Toxicity8 weeks - 2 cyclespatients only received drug for 8 weeks

Countries

United States

Participant flow

Participants by arm

ArmCount
Rituximab Monotherapy
Rituximab administered at a dose of 375mg/m2 as a single IV infusion every week for up to 8 weeks
12
Total12

Baseline characteristics

CharacteristicRituximab Monotherapy
Age Continuous
age, years
64 years
Karnofsky Performance Status Scale85 Score
Mini-Mental State Examination (MMSE)29 Score
Sex: Female, Male
Female
5 Participants
Sex: Female, Male
Male
7 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
12 / 12
serious
Total, serious adverse events
1 / 12

Outcome results

Primary

Radiographic Response

it at any time point patient progresses no more scans are required, patient is off study

Time frame: 1 month, 2 months and then q3months

ArmMeasureValue (NUMBER)
Rituximab MonotherapyRadiographic Response4 participants
Secondary

Overall Survival

survival was evaluated q 2months

Time frame: 47 months

ArmMeasureValue (MEDIAN)
Rituximab MonotherapyOverall Survival20.9 months
Secondary

Progression-free Survival

pt had MRI every 3 months

Time frame: pt had MRI q3months

ArmMeasureValue (MEDIAN)
Rituximab MonotherapyProgression-free Survival57 days
Secondary

Toxicity

patients only received drug for 8 weeks

Time frame: 8 weeks - 2 cycles

ArmMeasureValue (NUMBER)
Rituximab MonotherapyToxicity4 related episodes

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026