PARIS--(BUSINESS WIRE)--Cytheris SA, a clinical stage biopharmaceutical company focused on research and development of new therapies for immune modulation, today announced the initiation of a Phase I clinical trial of its lead investigational drug candidate, Interleukin-7 (IL-7), also known as CYT107. This new trial will study the use of IL-7/CYT107 in the treatment of post-transplant patients with T-cell depleted bone marrow or peripheral blood stem cell transplants. The initial study site will be at Memorial Sloan-Kettering Cancer Center (MSKCC) in New York City, where Marcel R.M. van den Brink, M.D., Ph.D., Head, Division of Hematologic Oncology, and Miguel-Angel Perales, M.D., Assistant Attending Physician in the Bone Marrow Transplant Service, will serve as Principal Investigator and co-Principal Investigator, respectively. Additional study sites are expected to open in the United States during the coming months.