- Subjects who have received Ssystemic anticancer therapy (except pemetrexed, cisplatin, carboplatin and topical or intracavitary treatments with negligible absorption in systemic circulation ) within 4 weeks before the start of anetumab ravtansine, or within 5 half-lives of the anticancer agent before the start of anetumab ravtansine, whichever is longer. Mitomycin C or nitrosoureas must be excluded within 6 weeks before the start of anetumab ravtansine.