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RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining chemotherapy with peripheral stem cell or bone marrow transplantation may allow the doctor to give higher doses of chemotherapy drugs and kill more tumor cells.
PURPOSE: This phase I trial is studying the side effects and best dose of pyrazoloacridine given together with peripheral stem cell or bone marrow transplantation in treating young patients with high-risk neuroblastoma.
- Determine the maximum tolerated dose, in relation to infusion time, of high-dose pyrazoloacridine followed by autologous hematopoietic stem cell rescue in pediatric patients with high-risk neuroblastoma.
- Determine the dose-limiting toxicity of this drug in these patients.
- Determine the pharmacokinetics of this drug in these patients.
- Determine, preliminarily, the antitumor activity of this drug in these patients.
OUTLINE: This is a two-stage, dose-escalation study.
Patients without adequate cryopreserved hematopoietic stem cells undergo peripheral blood stem cell harvest or bone marrow harvest for autologous stem cells at least 2 weeks before study therapy.
Patients receive high-dose pyrazoloacridine (PZA) IV on day 0.
- Cohort 1: Groups of 3-6 patients receive escalating doses of PZA at a fixed infusion time until the maximum tolerated dose (MTD) is determined.
- Cohort 2: Groups of 3-6 patients receive PZA at the dose/hour established in cohort I at escalating infusion times until another MTD is determined.
In both cohorts the MTD is defined as the dose preceding that at which 2 of 3 or 2 of 6 patients experience dose-limiting toxicity.
Patients receive filgrastim (G-CSF) IV or subcutaneously beginning on day 4 and continuing until blood counts recover. Patients also undergo reinfusion of stem cells over 15-30 minutes on day 4 as needed per protocol.
Patients are followed at days 28-35, every 3 months for 3 years, and then every 6 months thereafter.
PROJECTED ACCRUAL: A total of 18-42 patients will be accrued for this study.
Primary Purpose: Treatment
filgrastim, pyrazoloacridine, autologous bone marrow transplantation, peripheral blood stem cell transplantation
Children's Hospital Los Angeles
National Cancer Institute (NCI)
Published on BioPortfolio: 2014-08-27T03:55:29-0400
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining more than one drug and combining chemotherapy with autolog...
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining chemotherapy with autologous bone marrow transplantation o...
RATIONALE: Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing or die. Combining chemotherapy with peripheral stem cell or bone marrow tra...
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Bone marrow or peripheral stem cell transplantation may be able to r...
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Peripheral stem cell transplantation or bone marrow transplantation ...
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Bone remodeling takes place in the bone marrow environment. We investigated if levels of bone turnover markers (BTMs) differ between bone marrow and peripheral blood, if the bone marrow is an independ...
Transfer of HEMATOPOIETIC STEM CELLS from BONE MARROW or BLOOD between individuals within the same species (TRANSPLANTATION, HOMOLOGOUS) or transfer within the same individual (TRANSPLANTATION, AUTOLOGOUS). Hematopoietic stem cell transplantation has been used as an alternative to BONE MARROW TRANSPLANTATION in the treatment of a variety of neoplasms.
Transplantation of stem cells collected from the peripheral blood. It is a less invasive alternative to direct marrow harvesting of hematopoietic stem cells. Enrichment of stem cells in peripheral blood can be achieved by inducing mobilization of stem cells from the BONE MARROW.
Techniques for the removal of subpopulations of cells (usually residual tumor cells) from the bone marrow ex vivo before it is infused. The purging is achieved by a variety of agents including pharmacologic agents, biophysical agents (laser photoirradiation or radioisotopes) and immunologic agents. Bone marrow purging is used in both autologous and allogeneic BONE MARROW TRANSPLANTATION.
A cell-separation technique where magnetizable microspheres or beads are first coated with monoclonal antibody, allowed to search and bind to target cells, and are then selectively removed when passed through a magnetic field. Among other applications, the technique is commonly used to remove tumor cells from the marrow (BONE MARROW PURGING) of patients who are to undergo autologous bone marrow transplantation.
Agents that destroy bone marrow activity. They are used to prepare patients for BONE MARROW TRANSPLANTATION or STEM CELL TRANSPLANTATION.
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