Originating from the fusion of two research groups created in the 80s and 90s, the LYSA is a network exclusively dedicated to the implementation of clinical lymphoma research projects. It consists of more than 500 professional lymphoma specialists, more than 90 care centres distributed throughout 3 countries (France, Belgium, Portugal), and collaborates with many scientific teams at the international level.

The LYSA is labelled as a “Cooperative Group in Oncology” by the French National Cancer Institute (INCa). With its operational structure, the LYSARC, it is also labelled as a French Cooperative Intergroup with international scope in the field of clinical cancer research”.