SILibinin in NSCLC and BC Patients With Single Brain METastasis (SILMET)

This is the first placebo-controlled study evaluating the efficacy of silibinin as STAT3 inhibitor in preventing recurrence in the brain after gross-total resection of a brain metastasis (BM) from non-small-cell lung cancer (NSCLC) or breast cancer (BC). Participants will be randomized 1:1 to silibinin 1 g/day taken orally in comparison with oral placebo 1 g/day. A contrast-enhanced brain MRI will be performed every 8 weeks to evaluate intracranial local and distance recurrence