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RATIONALE: Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing or die.
- Determine the objective response rate and disease-stabilization rate in patients with relapsed or refractory multiple myeloma treated with R115777.
- Determine whether the degree of inhibition of FTase activity and farnesylation of lamin-B, H-RAS, K-RAS, and N-RAS in peripheral blood mononuclear cells (PBMC) and tumor tissue correlates with tumor response in patients treated with this drug.
- Determine whether the presence of activating RAS mutations in myeloma cells correlates with disease response in patients treated with this drug.
- Correlate R115777 plasma levels, degree of farnesylation inhibition in PBMC and tumor tissue, and RAS mutation status with tumor response in patients treated with this drug.
OUTLINE: This is a multicenter study.
Patients receive oral R115777 twice daily on days 1-21. Treatment repeats every 4 weeks in the absence of disease progression or unacceptable toxicity.
Patients are followed every 4 weeks.
PROJECTED ACCRUAL: A total of 12-42 patients will be accrued for this study within 8-25 months.
Primary Purpose: Treatment
Multiple Myeloma and Plasma Cell Neoplasm
H. Lee Moffitt Cancer Center and Research Institute
Active, not recruiting
National Cancer Institute (NCI)
Published on BioPortfolio: 2014-08-27T03:56:42-0400
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An asymptomatic and slow-growing PLASMA CELL dyscrasia characterized by presence of MYELOMA PROTEINS and clonal bone marrow plasma cells without end-organ damage (e.g., renal impairment). It is distinguished from MONOCLONAL GAMMOPATHY OF UNDETERMINED SIGNIFICANCE by a much higher risk of progression to symptomatic MULTIPLE MYELOMA.
A rare, aggressive variant of MULTIPLE MYELOMA characterized by the circulation of excessive PLASMA CELLS in the peripheral blood. It can be a primary manifestation of multiple myeloma or develop as a terminal complication during the disease.
Abnormal immunoglobulins characteristic of MULTIPLE MYELOMA.
A nonproliferative disorder of the PLASMA CELL characterized by excessive production and misfolding of IMMUNOGLOBULIN LIGHT CHAINS that form insoluble amyloid fibrils (see AMYLOID DEPOSITS) in various tissues. Clinical features include LIVER FAILURE; MULTIPLE MYELOMA; NEPHROTIC SYNDROME; RESTRICTIVE CARDIOMYOPATHY, and neuropathies.
A pyrazine and boronic acid derivative that functions as a reversible PROTEASOME INHIBITOR. It is used as an ANTINEOPLASTIC AGENT in the treatment of MULTIPLE MYELOMA and MANTLE CELL LYMPHOMA.
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