Scancell Holdings plc is a clinical-stage biopharmaceutical company based in Oxford, United Kingdom, that discovers and develops immunotherapies for cancer. Its product candidates include SCIB1/iSCIB1+ in Phase II for melanoma and SC134, an antibody for small cell lung cancer. It also develops Modi-1, a peptide immunotherapy in Phase II for solid tumors such as renal, head and neck, ovarian, and triple negative breast cancers, and Modi-2, which targets stress-induced post-translational modifications including homocitrullination. The company provides the GlyMab platform for generating tumour-specific monoclonal antibodies targeting glycans over-expressed on cancer cells, and AvidiMab, which promotes receptor clustering to improve immune signalling. Scancell Holdings plc was founded in 1996.