A Phase II Study of the Ketogenic Diet in Children With Malignant or Recurrent/Refractory Brain Tumor
试验速览
- 阶段
- 不适用
- 状态
- 终止
- 发起方
- 入组人数
- 2
- 试验地点
- 2
- 主要终点
- Overall Response Rate
研究概览
简要总结
The purpose of this study is to evaluate the effect of the ketogenic diet on tumor size and quality of life in pediatric patients with malignant or recurrent/refractory brain tumors.
详细描述
Brain tumors account for nearly 20% of all childhood malignancies. Of these, gliomas represent 50% of all brain tumors in children and young adults. Gliomas are classically divided into two subtypes - low-grade and high-grade. Low-grade gliomas (LGG) include pilocytic astrocytomas and diffuse astrocytomas, and high-grade gliomas (HGG) include anaplastic astrocytoma and glioblastoma multiforme. Although patients with grade I and II tumors have a good prognosis with 5-year overall survival rates of 80-90%, those cases that are recurrent, refractory, and/or unresectable remain a challenge. The prognosis of children and young adults with recurrent or refractory malignant brain tumors remains poor despite dramatic improvements in treatment over the past few decades, with only a minority achieving long-term survival if recurrence occurs following initial surgical resection and adjuvant chemotherapy.
For patients with HGG prognosis remains dismal despite aggressive treatment. In this subset of patients, the 5-year overall survival for anaplastic astrocytoma ranges from 20-40% and for glioblastoma 15-20%. Diffuse intrinsic brain stem gliomas (DIPG) have the worst overall prognosis with a nine-month mean overall survival and with most patients dying from the disease within 2 years. Thus, the development of new treatment protocols for children and young adults with both high grade gliomas and with recurrent or refractory low grade gliomas is crucial to improving the survival rates of these patients.
The Ketogenic Diet (KD) has been in clinical use for nearly a century, initially designed to mimic the effects of starvation. Over the last two decades metabolic studies have been gaining momentum as increasingly promising in disease modification of central nervous system disorders and tumors.
Tests in animals and studies in adult patients with brain tumors have shown that there are advantages to using the ketogenic diet. These include: improved response of the tumor to standard treatment (chemotherapy/radiation) and improvement in quality of life measures (alertness).
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Supportive Care
- 盲法
- None
入排标准
- 年龄范围
- 12 Months 至 35 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Diagnosis Medulloblastoma, high-grade glioma, low-grade glioma, and ependymoma are eligible. Other central nervous system tumors may be considered for treatment at discretion of investigator. Pathology is required unless diffuse intrinsic pontine glioma or optic pathway tumor. The patient should have failed first line therapy and be considered refractory, relapsed, or recurrent. Exceptions are Grade III and Grade IV gliomas including brain stem gliomas who can be enrolled at initial diagnosis.
- •Prior Therapy Patients should have already had first line standard of care therapy, unless their initial diagnosis is high grade glioma or DIPG in which case they are eligible. Patients with high grade glioma can be enrolled after the completion of initial radiation. Investigator discretion may also be used.
- •Organ Function Requirements A. Functioning gastrointestinal system, i.e. ability to chew and swallow or alternative means of nutrition therapy such as a gastrostomy or jejunostomy tube B. SGPT (ALT) < 3 x upper normal limit; Total Bilirubin ≤ 2 x upper normal limit C. No active pancreatitis D. No arrhythmia or prolonged QT.
排除标准
- •History of cardiac arrhythmia
- •Patient unable to chew/swallow and who do not consent to alternative methods of nutrition support, e.g. nasogastric or nasoduodenal tube, or gastrostomy or jejunostomy tube placement.
结局指标
主要结局
Overall Response Rate
时间窗: one year
To evaluate the overall response rate of subjects with malignant or refractory brain tumors receiving dietary therapy with the ketogenic diet
次要结局
- Ketosis Levels(one year)
- Correlation of ketosis levels and ketogenic diet(one year)
- Blood Glucose Levels(one year)
- Quality of Life Measures(one year)