TNFSF13 and systemic lupus erythematosus: Both EMR700461-022 (EudraCT ID: 2013-002703-34) and APRIL-SLE (NCT00624338) studies were conducted in accordance with their protocols, the International Conference on Harmonization (ICH) guideline for Good Clinical Practice (GCP) and applicable local regulations, as well as with the Declaration of Helsinki.