International cooperations based on bilateral agreements exist with the National Council for Research and Development (NCRD) of Israel and with the National Cancer Institute (NCI) of the USA. Based on the German-Japanese research cooperation the exchange of scientists is encouraged. A continuous collaboration exists with the International Agency for Research on Cancer (IARC) of the World Health Organization (WHO) in Lyon, France.
Cooperations were contracted with scientists in the People's Republic of China, in India, in Hungary, in Tanzania and several other countries.