Arsenic Trioxide and Ascorbic Acid Combined With Bortezomib, Thalidomide, and Dexamethasone in Treating Patients With Relapsed or Refractory Multiple Myeloma or Plasma Cell Leukemia
RATIONALE: Drugs used in chemotherapy, such as arsenic trioxide and dexamethasone, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Ascorbic acid may help arsenic trioxide work better by making cancer cells more sensitive to the drug. Bortezomib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Thalidomide may stop the growth of cancer cells by stopping blood flow to the cancer. Giving arsenic trioxide and ascorbic acid together with bortezomib, thalidomide, and dexamethasone may stop the growth of and kill more cancer cells.
PURPOSE: This phase I trial is studying the side effects and best dose of arsenic trioxide when given together with ascorbic acid, bortezomib, thalidomide, and dexamethasone in treating patients with relapsed or refractory multiple myeloma or plasma cell leukemia.
|Multiple Myeloma and Plasma Cell Neoplasm||Dietary Supplement: ascorbic acid Drug: arsenic trioxide Drug: bortezomib Drug: dexamethasone Drug: thalidomide Drug: Aspirin||Phase 1|
|Study Design:||Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
|Official Title:||A Phase I Study of Arsenic Trioxide and Ascorbic Acid (ATO/AA) in Combination With Low Dose Velcade-Thalidomide-Dexamethasone (VTD) in Relapsed/Refractory Multiple Myeloma (MM)|
- To determine if arsenic trioxide and ascorbic acid at doses up to 0.25 mg/mg/dose can be given in combination with reduced-dose dexamethasone, bortezomib and thalidomide without dose limiting toxicity, especially sensory neuropathies. [ Time Frame: Days 1, 4, 8 & 11 of each 21 day cycle ]
- Estimate the Overall Response Rate (ORR), Complete Response Rate (CRR), and Response Duration (RD) in patients treated with the Maximally Tolerated Dose (MTD) of this regimen. [ Time Frame: at cycle 2 and 6 weeks after ]
- Determine if addition of Arsenic Trioxide[AT]/Ascorbic Acid (Vit C)[AA] starting in cycle 2 of treatment increases NF-kappa-B [NFKB] inhibition in cycles 2 and 3 compared to cycle 1. [ Time Frame: At baseline and 1 hour after the first dose of Bortezomib in cycles 1, 2, and 3 ]Peripheral blood samples are to be obtained at baseline, and 1 hour after the first dose of Bortezomib in cycles 1, 2, and 3 for Pharmacodynamic studies
|Study Start Date:||May 2005|
|Study Completion Date:||April 2008|
|Primary Completion Date:||April 2008 (Final data collection date for primary outcome measure)|
Experimental: Bortezomib, AT, Thalidomide, Dexamethasone, Vit C, ASA
Bortezomib (Velcade)- 0.7→1.0 mg/m2 IVP d 1, 4, 8, 11; Arsenic Trioxide [AT] (Trisenox)- 0.10→0.15→0.25 mg/kg/dose IVPB days 1, 4, 8, 11; Thalidomide (Thalomid)- 50 mg/day by mouth (PO); Dexamethasone (Decadron)- 40 mg/d IVPB or by mouth (PO) d 1, 4, 8, 11; Ascorbic Acid (Vit C)- 1000 mg IVPB p Arsenic Trioxide (ATO) days 1, 4, 8, 11; Aspirin (ASA)- 325 mg by mouth (PO) every day
Dietary Supplement: ascorbic acid
Ascorbic Acid (Vit C)- 1000 mg IVPB after Arsenic Trioxide [ATO] days 1, 4, 8, 11
Other Names:Drug: arsenic trioxide
Arsenic Trioxide (Trisenox)- 0.10→0.15→0.25 mg/kg/dose IVPB days 1, 4, 8, 11
Other Name: Trisenox®Drug: bortezomib
Bortezomib (Velcade)- 0.7→1.0 mg/m2 IVP days 1, 4, 8, 11
Other Name: Velcade®Drug: dexamethasone
Dexamethasone (Decadron)- 40 mg/days IVPB or PO d 1, 4, 8, 11
Other Names:Drug: thalidomide
Thalidomide (Thalomid) - 50 mg/day by mouth (PO)
Other Name: ThalomidDrug: Aspirin
Aspirin - 325 mg by mouth (PO) every day
- Determine the dose-limiting toxicity of arsenic trioxide when given in combination with ascorbic acid, bortezomib, thalidomide, and dexamethasone, particularly in terms of sensory neuropathy, in patients with relapsed or refractory multiple myeloma or plasma cell leukemia.
- Determine the overall response rate, complete response rate, and response duration in patients treated with the maximum tolerated dose of this regimen.
- Determine whether the addition of arsenic trioxide and ascorbic acid to the treatment regimen (beginning in course 2) increases NFKB inhibition in these patients during courses 2 and 3 compared to course 1.
OUTLINE: This is a multicenter, dose-escalation study of arsenic trioxide.
- Induction therapy: Patients receive bortezomib IV over 3-5 seconds and dexamethasone IV or orally on days 1, 4, 8, and 11 and oral thalidomide once daily on days 1-21 (course 1). For course 2 and all subsequent courses, patients receive arsenic trioxide IV over 1-2 hours, ascorbic acid IV over 15 minutes, bortezomib IV over 3-5 seconds, and dexamethasone IV or orally on days 1, 4, 8, and 11 and thalidomide once daily on days 1-21. Courses repeat every 21 days in the absence of disease progression or unacceptable toxicity. Patients who achieve a plateau in response proceed to maintenance therapy.
- Maintenance therapy: Patients receive oral dexamethasone every other day and oral thalidomide once daily in the absence of disease progression or unacceptable toxicity.
Cohorts of 3-6 patients receive escalating doses of arsenic trioxide until the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose preceding that at which 2 of 3 or 2 of 6 patients experience dose-limiting toxicity.
PROJECTED ACCRUAL: A total of 24 patients will be accrued for this study.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00258245
|United States, Michigan|
|Barbara Ann Karmanos Cancer Institute|
|Detroit, Michigan, United States, 48201-1379|
|Study Chair:||Jeffrey A. Zonder, MD||Barbara Ann Karmanos Cancer Institute|