New guidelines from an expert working group describe when to include or exclude patients with brain metastases from clinical trials. In the past, these patients have often been inappropriately excluded from trials, resulting in a dearth of information on the efficacy of cancer drugs in the central nervous system.

中文翻译：

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中枢神经系统转移灶不排除纳入试验的可能性

专家工作组的新指南描述了何时从临床试验中纳入或排除脑转移患者。过去，这些患者经常被不适当地排除在试验之外，导致缺乏有关抗癌药在中枢神经系统中功效的信息。