Estriol and Trimegestone Dose-response Trial With Single Dose Application of Vaginal Rings

• Status: Completed
• Trial end date: 2018-02-15
• Target enrollment: 0
• Participant gender: Female

Summary

This clinical trial is performed as proof of pharmacological action investigation by demonstration of ovulation inhibition (dose-response study) under treatment with three Test vaginal rings releasing varying doses of estriol (E3) and trimegestone (TMG).

Blood samples for determination of estradiol (E2) and progesterone (PG) levels will serve as pharmacodynamic surrogate parameters for characterization of the treatment effect on the endogenous hormones.

Blood samples for determination of E3 and TMG in plasma will be collected in order to characterize pharmacokinetic parameters.

Additionally, local tolerability characterized by gynecological inspection of the vaginal mucosa prior to and after insertion of the Investigational Medicinal Product (IMPs) is planned to be assessed

• Phase: Phase 1
• Accepts Healthy Volunteers?: Accepts Healthy Volunteers

Details

• Lead Sponsor: Galeno Desenvolvimento de Pesquisas Clínicas
• Collaborator: SocraTec R&D GmbH

Criteria

Inclusion Criteria:

• Under treatment with a commercially available combined oral contraceptive containing 30 µg ethinylestradiol (EE) and 150 µg levonorgestrel (LVN) for the last 3 months prior to enrolment

• Body-mass index (BMI): ≥ 18.5 kg/m² and ≤ 30.0 kg/m²

• Good state of health

• Non-smoker, ex-smoker for at least 3 months

• Regular menstrual cycle with a length between 21 and 35 days

• Written informed consent, after having been informed about benefits and potential risks of the clinical trial

Exclusion Criteria:

• Existing diseases or pathological findings, which might interfere with the safety or tolerability, and/or pharmacokinetics of the IMPs

• Subjects with severe allergies or multiple drug allergies

• Positive anti human immunodeficiency virus (anti-HIV) test, hepatitis B surface antigen (HBs-AG) test or anti hepatitis C virus (anti-HCV) test

• Presence or history of venous or arterial thrombosis, cerebrovascular accident, or increased risk of thrombosis

• Diabetes mellitus

• Unclarified vaginal bleeding or frequent infections of the urogenital tract

• Severe or chronic constipation

• Presence or history of migraine

• Drug or alcohol dependence

• Blood donation or other blood loss of more than 400 ml within the last 3 months

• Participation in a clinical trial during the last 6 months

• Pregnant or lactating women

• Subjects who do not agree to apply a barrier method for contraception