Adozelesin is an experimental antitumor drug of the duocarmycin class. It binds to and alkylates DNA, resulting in a reduction of both cellular and simian virus 40 (SV40) DNA replication which ultimately reduces the rate of cancer growth. Adozelesin is an experimental antitumor drug of the duocarmycin class. It binds to and alkylates DNA, resulting in a reduction of both cellular and simian virus 40 (SV40) DNA replication which ultimately reduces the rate of cancer growth.