Rituximab, Temozolomide, and Methylprednisolone in Treating Patients With Recurrent Primary CNS Non-Hodgkin's Lymphoma



Status:Terminated
Conditions:Lymphoma
Therapuetic Areas:Oncology
Healthy:No
Age Range:18 - 120
Updated:9/5/2018
Start Date:September 2005
End Date:September 2012

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A Phase II Study of Rituximab and Temozolomide in Recurrent Primary CNS Lymphoma

RATIONALE: Monoclonal antibodies, such as rituximab, can block cancer growth in different
ways. Some block the ability of cancer cells to grow and spread. Others find cancer cells and
help kill them or carry cancer-killing substances to them. Drugs used in chemotherapy, such
as temozolomide and methylprednisolone, work in different ways to stop the growth of cancer
cells, either by killing the cells or by stopping them from dividing. Rituximab may help
chemotherapy kill more cancer cells by making cancer cells more sensitive to the drugs.
Giving rituximab together with temozolomide and methylprednisolone may be an effective
treatment for primary CNS non-Hodgkin's lymphoma.

PURPOSE: This phase II trial is studying how well giving rituximab together with temozolomide
and methylprednisolone works in treating patients with recurrent primary CNS non-Hodgkin's
lymphoma.

OBJECTIVES:

Primary

- Determine the response rate in patients with recurrent primary CNS non-Hodgkin's
lymphoma treated with rituximab, temozolomide, and methylprednisolone.

Secondary

- Determine the overall and 6-month progression-free survival of patients treated with
this regimen.

OUTLINE: Induction therapy: Patients receive rituximab IV over 30-60 minutes on days 1, 8,
15, and 22 and oral temozolomide daily on days 1-7 and 15-21. After day 28, patients with
stable disease or better proceed to consolidation therapy.

Consolidation therapy: Patients receive oral temozolomide daily on days 1-5. Treatment
repeats every 28 days for up to 6 courses. Patients achieving a complete remission proceed to
maintenance therapy.

Maintenance therapy: Patients receive methylprednisolone IV over 2 hours on day 1. Courses
repeat every 28 days in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed every 3 months.

PROJECTED ACCRUAL: A total of 40 patients will be accrued for this study within approximately
13.3 months.

DISEASE CHARACTERISTICS:

- Histologically confirmed primary CNS non-Hodgkin's lymphoma by brain biopsy, positive
cerebrospinal fluid cytology, or vitrectomy

- Recurrent disease

- Measurable disease, define as bi-dimensionally measurable lesions with clearly defined
margins by brain MRI or CT scan

- Radiographical evidence of tumor progression by MRI or CT scan

- Steroid therapy must be stable for 5 days prior to scan

PATIENT CHARACTERISTICS:

Age

- 18 and over

Performance status

- Karnofsky 60-100%

Life expectancy

- More than 8 weeks

Hematopoietic

- WBC ≥ 3,000/mm^3

- Absolute neutrophil count ≥ 1,500/mm^3

- Platelet count ≥ 100,000/mm^3

- Hemoglobin ≥ 10 g/dL (transfusion allowed)

Hepatic

- SGOT < 2 times upper limit of normal (ULN)

- Bilirubin < 2 times ULN

- No active or latent hepatitis B infection

Renal

- Creatinine < 1.5 mg/dL OR

- Creatinine clearance ≥ 60 mL/min

Other

- Not pregnant or nursing

- Negative pregnancy test

- Fertile patients must use effective contraception

- No other malignancy within the past 3 years except nonmelanoma skin cancer or
carcinoma in situ of the cervix

- No uncontrolled significant medical illness that would preclude study treatment

- No active infection

- No active HIV infection

- No concurrent disease that would dangerously alter drug metabolism or obscure toxicity

PRIOR CONCURRENT THERAPY:

Biologic therapy

- At least 7 days since prior interferon or thalidomide

- No concurrent prophylactic filgrastim (G-CSF)

- No concurrent immunotherapy

Chemotherapy

- No prior temozolomide

- At least 14 days since prior methotrexate

- At least 21 days since prior procarbazine

- At least 42 days since prior nitrosoureas

- No other concurrent chemotherapy

Endocrine therapy

- See Disease Characteristics

- At least 7 days since prior tamoxifen

- No concurrent hormonal therapy

Radiotherapy

- No concurrent radiotherapy

Surgery

- Not specified

Other

- Recovered from all prior therapy

- At least 28 days since prior investigational agents

- At least 28 days since other prior cytotoxic therapy

- At least 7 days since other prior non-cytotoxic agents (e.g., tretinoin)
(radiosenitizers allowed)

- No other concurrent investigational drugs
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UCSF Helen Diller Family Comprehensive Cancer Center UCSF’s long tradition of excellence in cancer research...
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