Tomotherapy for Refractory Brain Metastases

Tomotherapy for Refractory Brain Metastases: a Single Arm, Single Center Phase II Trial

This clinical trial was designed to investigate the efficiency and toxicity of tomotherapy for refractory brain metastases.

This is a single-arm, single center, phase II trial to investigate the feasibility and toxicity of tomotherapy for refractory brain metastases, which are defined as A: multiple brain metastases(≥3 lesions); B: large brain metastases(with one lesion's volume is no smaller than 6cc or the longest diameter is no shorter than 3cm); C: meningeal metastases.

Inclusion Criteria:

• Histologic or cytologic diagnosis of primary tumor and conformed brain metastases by enhanced MRI or CT; the lesion number is no less than 3; or the tumor volume is no smaller than 6cc; or tumor diameter is no shorter than 3cm; or uncontrolled brain tumor after whole brain radiotherapy(WBRT); or the tumor is adjacent to essential structures of the brain, such as brain stem, optic chiasma, optic tract, etc; KPS ≥60,or KPS ≥40 and the limitation of motion is simply caused by brain tumor that is adjacent to the motor function areas; Age: 18-75 years old;

Adequate end-organ function:

WBC≥4.0x109/L Neu ≥ 1.5x109/L Hemoglobin ≥ 110 g/L Platelets ≥100 x109/L Total bilirubin ≤ 1.5x ULN AST and ALT ≤ 1.5x ULN BUN and Cr: within the normal range.

Exclusion Criteria:

• • Other clinically significant diseases (e.g.myocardial infarction within the past 6 months, severe arrhythmia).

  • Unable or unwilling to comply with the study protocol.
  • The expected survival time is less than 3 months.
  • Patients who are anticipated in other clinical trials of brain metastases.
  • Patients who has been treated with SRT in other hospitals
  • Pregnant patients or female patients whose HCG is positive
  • Unsuitable to participate in study, that in the opinion of the treating physician.