Overview PK and Safety Study of Vaginal Rings Containing Dapivirine and Levonorgestrel Status: Active, not recruiting Trial end date: 0000-00-00 Target enrollment: Participant gender: Summary PK and Safety Study of Vaginal Ring Containing Dapivirine and Levonorgestrel Phase: Phase 1 Details Lead Sponsor: International Partnership for Microbicides, Inc.Collaborator: National Institutes of Health (NIH)