NEW YORK, Dec. 11, 2020 (GLOBE NEWSWIRE) -- SELLAS Life Sciences Group, Inc. (Nasdaq: SLS) (“SELLAS” or the “Company”), a clinical-stage biopharmaceutical company focused on the development of novel cancer immunotherapies for a broad range of cancer indications, announced today final data with up to 6 months follow-up from a Phase 2 randomized trial (the VADIS study) of the Company’s nelipepimut-S (NPS) in combination with granulocyte-macrophage colony-stimulating factor (GM-CSF) in women with ductal carcinoma in situ (DCIS) of the breast who are HLA-A2+ or A3+ positive, express HER2 at IHC 1+, 2+, or 3+ levels, and are pre- or post-menopausal. This investigator-sponsored trial randomized patients to receive, prior to surgery, either GM-CSF followed by NPS two weeks later or GM-CSF alone.