In October 2013, CEL-SCI filed an arbitration suit against inVentiv Health Clinical, LLC (f/k/a PharmaNet LLC) and PharmaNet GmbH (f/k/a PharmaNet AG). In July 2017, inVentiv Health, Inc., the ultimate parent company of the respondents in the arbitration, merged with INC Research Holdings, Inc., a company of about equal size. The combined entity was named INC Research. In January 2018 INC Research changed its name to Syneos Health.