A Study in Healthy Women to Test Whether BI 1358894 Influences the Amount of a Contraceptive in the Blood

An Open-label, Fixed-sequence Cross-over, Two-period, Phase I Trial to Evaluate the Effect of Multiple Doses of BI 1358894 on the Pharmacokinetics of a Combination of Ethinylestradiol and Drospirenone in Healthy Female Subjects

This study aims to investigate the effect of multiple doses of BI 1358894 on pharmacokinetics of ethinylestradiol (EE) and drospirenone (DRSP) (Yasmin®)

Inclusion Criteria:

1. Healthy premenopausal female subjects according to the assessment of the investigator, as based on a complete medical history including a physical and gynaecological examination, vital signs (blood pressure (BP), pulse rate (PR)), 12-lead electrocardiogram (ECG), and clinical laboratory tests

2. Age of 18 to 35 years (inclusive)

3. Body mass index (BMI) of 18.5 to 29.9 kg/m2 (inclusive)

4. Signed and dated written informed consent in accordance with International Council for Harmonisation-Good Clinical Practice (ICH-GCP) and local legislation prior to admission to the trial

5. Female subject who meet any of the following criteria for a highly effective contraception from at least 30 days before the first administration of trial medication until 30 days after trial completion:

   • Use of an oral hormonal contraception method in combination with a barrier contraception method and willing to stop the hormonal method and to continue using the barrier method plus Yasmin® for the duration of the trial
   • Use of non-hormonal intrauterine device (IUD)
   • Sexually abstinent
   • Female subject who underwent tubal ligation
   • A vasectomised sexual partner who received medical assessment of the surgical success (documented absence of sperm) and provided that partner is the sole sexual partner of the trial participant

Exclusion Criteria:

1. Any finding in the medical examination (including BP, PR or ECG) deviating from normal and assessed as clinically relevant by the investigator (e.g. pronounced varicosis, thrombophlebitis, and evidence of peripheral circulatory disturbances)
2. Repeated measurement of systolic blood pressure outside the range of 90 to 140 millimetre(s) of mercury (mmHg), diastolic blood pressure outside the range of 50 to 90 mmHg, or pulse rate outside the range of 50 to 90 beats per minute (bpm)
3. Any laboratory value outside the reference range that the investigator considers to be of clinical relevance
4. Any evidence of a concomitant disease assessed as clinically relevant by the investigator
5. Gastrointestinal, hepatic, renal, respiratory, cardiovascular, metabolic, immunological or hormonal disorders
6. Cholecystectomy or other surgery of the gastrointestinal tract that could interfere with the pharmacokinetics of the trial medication (except appendectomy or simple hernia repair)
7. Diseases of the central nervous system (including but not limited to any kind of seizures or stroke), and other relevant neurological or psychiatric disorders
8. History of relevant orthostatic hypotension, fainting spells, or blackouts

Further exclusion criteria apply