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RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die.
OBJECTIVES: I. Determine the maximum tolerated dose of oral phenylbutyrate that can be given three times daily in patients with refractory solid tumors or lymphoma until disease progression or a trough plasma concentration of 2-6 micromoles per liter is achieved. II. Characterize the pharmacokinetics of oral phenylbutyrate absorption, and determine whether there is time dependence in the systemic clearance rate during multiple dosing. III. Seek preliminary evidence of therapeutic activity of phenylbutyrate when administered on this schedule in these patients. IV. Correlate any observed responses and toxic effects with results of bioassays and tissue sampling for phenylbutyrate activity.
OUTLINE: This is a dose-seeking study. All patients receive oral phenylbutyrate three times daily. Groups of 4 or more patients receive escalating doses of phenylbutyrate until the maximum tolerated dose (MTD) is determined. Treatment continues until disease progression or unacceptable toxicity intervenes.
PROJECTED ACCRUAL: At least 4 patients are studied at each dose level. An additional 20 patients will be accrued at the maximum tolerated dose.
Primary Purpose: Treatment
chemotherapy, oral sodium phenylbutyrate
Johns Hopkins Oncology Center
National Cancer Institute (NCI)
Published on BioPortfolio: 2014-07-23T21:57:07-0400
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Malignant lymphoma composed of large B lymphoid cells which have the immunophenotype of plasma cells and a predilection for the ORAL CAVITY.
Drug treatment designed to further diminish the disease toward complete remission following INDUCTION CHEMOTHERAPY. It helps to consolidate the gains during induction chemotherapy and may be followed by MAINTENANCE CHEMOTHERAPY.
Treatment designed to help prevent a relapse of a disease following the successful primary treatments (INDUCTION CHEMOTHERAPY and CONSOLIDATION CHEMOTHERAPY) with a long-term low-dose drug therapy.
Initial drug treatment designed to bring about REMISSION INDUCTION. It is typically a short-term and high-dose drug treatment that is followed by CONSOLIDATION CHEMOTHERAPY and then MAINTENANCE CHEMOTHERAPY.
A leukemia/lymphoma found predominately in children and young adults and characterized LYMPHADENOPATHY and THYMUS GLAND involvement. It most frequently presents as a lymphoma, but a leukemic progression in the bone marrow is common.
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