A Study to Compare How Different Substances (Caffeine, Warfarin, Omeprazole, Metoprolol, and Midazolam) Are Handled by the Body of Healthy People and People With Liver Cirrhosis

The main trial objective is to ascertain whether the metabolism activity of selected cytochrome (CYP) isozymes caffeine (CYP1A2 probe drug), warfarin (CYP2C9 probe drug), omeprazole (CYP2C19 probe drug), metopolol (CYP2D6 probe drug), and midazolam (CYP3A probe drug) are similar or different in F4 liver cirrhosis patients on standard therapy compared to healthy subjects.

Inclusion criteriaHealthy subjects and F4 liver cirrhosis patients:Signed and dated written informed consent in accordance with the International Conference on Harmonisation-Good Clinical Practice (ICH-GCP) and local legislation prior to admission to the trialEither male subject, or female subject who meets 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 combined (estrogen and progestogen containing) hormonal contraception that prevents ovulation (oral, intravaginal, or transdermal), plus condomUse of progestogen-only hormonal contraception that inhibits ovulation (only injectables or implants), plus condomUse of intrauterine device (IUD) or intrauterine hormone-releasing system (IUS)Sexually abstinentA vasectomised sexual partner who received medical assessment of the surgical success (documented absence of sperm) and provided that the partner is the sole sexual partner of the trial participantSurgically sterilised (including hysterectomy)Postmenopausal, defined as no menses for 1 year without an alternative medical cause (in questionable cases a blood sample with levels of follicle-stimulating hormone (FSH) above 40 units per liter (U/L) and estradiol below 30 nanograms per liter (ng/L) is confirmatory)Not taking any components in the cocktail within 4 weeks of enrolment (except from caffeine: methylxanthine-containing drinks or foods such as coffee, tea, cola, energy drinks, or chocolate are not allowed within 48 hours (h) before and during the inhouse confinement at the trial site)Healthy subjects only:Healthy male or female subjects according to the assessment of the investigator, as based on a complete medical history including a physical examination, vital signs (blood pressure (BP), pulse rate (PR)), 12-lead electrocardiogram (ECG), and clinical laboratory testsAge of 18 to 75 years (inclusive)Body mass index (BMI) of 18.5 to 35 kilograms per meter squared (kg/m2) (inclusive). A BMI of ≥ 30 is no exclusion criterion when the subject can be considered healthy apart from the elevated BMIfurther inclusion criteria applyF4 liver cirrhosis patients onlyMale and female subjects, 18 to 75 yearsBMI of 18.5 to 40.0 kg/m2 (inclusive)Stable treatment for at least 4 weeks prior to taking the cocktailfurther inclusion criteria applyExclusion criteriaHealthy subjects and F4 liver cirrhosis patients:Subjects already taking any components in the cocktail within 4 weeks before cocktail administration (except from caffeine: methylxanthine-containing drinks or foods such as coffee, tea, cola, energy drinks, or chocolate are not allowed within 48 h before and during the in-house confinement at the trial site)Subjects with any other condition that would preclude administration of caffeine, warfarin, omeprazole, metoprolol, and midazolam (i.e., contraindicated as per Summary of Product Characteristics (SmPC)), such as hypersensitivity to active ingredient or any of the excipients or to any beta receptor blockersRepeated measurement of systolic blood pressure outside the range of 90 to 150 millimeter of mercury (mmHg), diastolic blood pressure outside the range of 50 to 95 mmHg, or pulse rate outside the range of 50 to 90 beats per minute (bpm)Cholecystectomy or other surgery of the gastrointestinal tract that could interfere with the pharmacokinetics of the trial medication (except appendectomy or simple hernia repair)Diseases of the central nervous system (including but not limited to any kind of seizures or stroke), and other relevant neurological or psychiatric disordersHistory of relevant orthostatic hypotension, fainting spells, or blackoutsRelevant (other than Hepatitis B virus (HBV) or Hepatitis C virus (HCV)) chronic or acute infections (including an ongoing severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection)Patients receiving antiviral therapy at the time of inclusion into the trialfurther exclusion criteria apply