Overview Open Label Trial of Nissle 1917 Status: Completed Trial end date: 2015-02-01 Target enrollment: Participant gender: Summary Nissle 1917 is an E. coli based probiotic used in the Europe for close to 100 years to treat gastrointestinal disorders and infections. The investigators will assess the safety and tolerability of this medication in Americans in a Phase 1 trial. Phase: Phase 1 Details Lead Sponsor: Elizabeth Lucas