Pilot Study of Systemic and Intrathecal Chemotherapy Followed by Conformal Radiation for Infants With Brain Tumors
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 119
- 试验地点
- 6
- 主要终点
- To evaluate the feasibility, including expected disease progression, of delivering 20 weeks of systemic chemotherapy plus (IT) mafosfamide.
研究概览
简要总结
The purposes of this study are to find the highest dose of mafosfamide that can be given without causing severe side effects, to see how well the combination of these chemotherapy drugs and lower doses of radiation work to delay or stop the growth of the tumor, and to evaluate the pharmacokinetics (how the body handles) of Mafosfamide.
详细描述
All children in the study will receive Regimen 1 chemotherapy. Children whose tumor is limited to one area at the beginning of the study will go on to have radiation therapy and then Regimen 2 chemotherapy. Children whose tumor was found in more than one part of the brain or in the cerebrospinal fluid at the beginning of the study will discontinue their treatment on this protocol after Regimen 1 chemotherapy.
Regimen 1 Chemotherapy - Those children with a normal CSF flow study at the beginning of the study will receive Regimen 1 chemotherapy along with mafosfamide. Those children with an abnormal CSF flow study will receive Regimen 1 without mafosfamide and a repeat CSF flow study will be performed at the completion of the first 10 weeks of treatment. If the CSF study reflects normal CSF flow, then intrathecal mafosfamide will be given during the second 10 weeks of Regimen 1. Regimen 1 is divided into two courses. Each course lasts about 10 weeks, for a total of 20 weeks of treatment. During Regimen 1 the patient will receive three medications (cyclophosphamide, vincristine, and cisplatin) that are given through the central venous line. The patient will also receive one medication that is given by mouth (etoposide). Cyclophosphamide, vincristine, cisplatin, and etoposide are all anticancer drugs that have been useful in the treatment of brain tumors.
The experimental drug, mafosfamide, will be injected into the spinal fluid. This will be given through either a spinal tap, the Ommaya reservoir, or both. Alternating mafosfamide between the spinal tap and the Ommaya reservoir may improve how well the drug works by making sure it spreads throughout the spinal fluid. If the patient has a VP or VA shunt ( specialized devices that relieve the pressure inside the head that comes from a block in the normal flow of spinal fluid), then the patient will not receive an Ommaya reservoir, and all doses of mafosfamide will be given through a spinal tap only.
The starting dose of mafosfamide will be a dose that has been safely given to older children. If that dose does not cause severe side effects, the next group of patients will receive a higher dose of mafosfamide. If severe side effects occur, the next group of patients will receive a lower dose of mafosfamide
During and at the end of Regimen 1, the patient will be evaluated for response of the brain tumor to treatment. A second operation may be necessary to remove more of the brain tumor. Children whose tumor had spread at the time they began this study have completed treatment at this point. Children whose tumor had not spread at start of the study will begin radiation therapy, if their tumor appears to be unchanged or shrinking after Regimen 1.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- — 至 36 Months（Child）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- 未提供
排除标准
- •Age: < 3 years.
- •Histology: Patient must have a histologically confirmed primary intracranial CNS medulloblastoma/PNET or other embryonal tumor (medulloepithelioma, ependymoblastoma, neuroblastoma, pineoblastoma), atypical teratoid/rhabdoid tumor, intracranial germ cell tumor, or choroid plexus carcinoma. Patients with M+ ependymoma are also eligible.
- •Performance Status: Karnofsky or Lansky >= 30%
- •Bone Marrow Function: All patients must have a Hgb >= 10 g/dl, ANC >= 1,500/mm3, and a platelet >= 100,000/mm
- •If the patient has a positive bone scan, then a pretreatment bone marrow aspirate and biopsy must be free of tumor.
- •Hepatic/Renal Function: All patients must have adequate hepatic (total bilirubin < 1.5 mg/dl, SGPT < 5x normal), and renal (normal serum creatinine for age or technetium clearance > 40/ml/min/m2) function.
- •Prior Therapy: Patients may not have received prior radiotherapy or chemotherapy, with the exception of steroids. Patients must not be receiving any other investigational agents. (Patients may receive investigational agents for supportive care 30 days after completion of all mafosfamide therapy.)
- •Surgery: Patients must begin protocol therapy within 35 days of definitive surgery.
- •Central Line: Patients must be willing to have a central line.
- •CSF flow: Patients must be willing to have a CSF flow study to determine whether or not they will receive intrathecal chemotherapy. Patients without a VP or VA shunt must be willing to have an Ommaya reservoir if their CSF flow study does not show any evidence of obstruction to or compartmentalization of flow. Patients with obstruction to or compartmentalization of CSF flow on their initial flow study must be willing to have a repeat flow performed within the initial 10 weeks of induction therapy, ideally during weeks 8-
- •If a repeat flow study shows resolution of obstruction or compartmentalization, patients are expected to begin intrathecal mafosfamide during Regimen 1 course 2 of therapy. Patients without a VP or VA shunt who have resolution of normal flow should additionally have an Ommaya reservoir placed.
结局指标
主要结局
To evaluate the feasibility, including expected disease progression, of delivering 20 weeks of systemic chemotherapy plus (IT) mafosfamide.
时间窗: 20 weeks
controlling the disease for at least 20 weeks.
To evaluate the safety and feasibility of a limited dose escalation schedule of IT mafosfamide in children < 3 years of age.
时间窗: 5 years
Toxicities observed during the last 18 weeks of IT therapy (prior to irradiation) together with the acute toxicities profiles observed during the initial 2 weeks of IT therapy will be used to derive the dose to be evaluated in the feasibility component of this study.
次要结局
未报告次要终点
研究者
Susan Blaney
Professor of Pediatrics
Baylor College of Medicine