Patients with BRCA2 gene will be treated with Mitomycin-C (MMC) on Day 1 at a dose of 10mg/m2 intravenously. This will be repeated every 28 days, which is one cycle. Expected adverse events and appropriate dose modifications are described in this section. Treatment will continue until disease progression, serious toxicity, patient withdrawal or maximum cumulative dose of 60 mg/m2.