A Pharmacokinetic Study of Dapivirine Vaginal Rings in Belgium

Inclusion Criteria:

• Women between 18 and 35 years of age
• Willing and able to give written informed consent
• Available for all visits and consent to follow all procedures scheduled for the study
• Healthy and HIV-negative as determined by a HIV-1 ELISA test at time of enrollment;
• Willing to abstain from sexual activity for the duration of the study
• Willing to use oral contraceptives to avoid menstruation while taking part in this study or on long-acting progestins for 6 months prior to enrollment
• Upon pelvic / speculum examination at enrollment, the cervix and vagina appear normal
• Willing to refrain from use of vaginal products or objects for the duration of the study.

Exclusion Criteria:

• History of alcoholism, drug abuse, psychosis, antagonistic personality, poor motivation, or other emotional or intellectual problems that are likely to invalidate the informed consent process or adversely impact compliance with protocol requirements;
• History of sensitivity / allergy to latex, dapivirine or to the constituents of the vaginal ring (i.e. silicone elastomer)
• Currently pregnant or breast-feeding, or within three months of last pregnancy outcome
• Currently or within one month of participating in any other clinical research study
• History or diagnosis of and / or treatment for a sexually transmitted disease within the last three months
• History of genital tract surgery within the last month
• Current diagnosis of sexually transmitted infections (Gonorrhea, Chlamydia and Trichomonas)
• Current vulvar or vaginal symptoms / abnormalities that could influence the study results
• History of significant urogenital or uterine prolapse, undiagnosed vaginal bleeding or urethral obstruction within the last three months;
• Smoking more than 10 cigarettes per day