Overview A Study in Healthy Men and Women to Test Which Effects Memantine and BI 425809 Have on Each Other Status: Completed Trial end date: 2019-10-30 Target enrollment: Participant gender: Summary Investigate the effect of steady state exposures of memantine on the steady-state pharmacokinetics of BI 425809 and vice versa in healthy subjects. Phase: Phase 1 Details Lead Sponsor: Boehringer IngelheimTreatments: BI 425809Memantine