CClinicalTrials.gg
CompletedNCT05741385Updated Sep 10, 2025Results posted

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

An interventional study of Caffeine and Warfarin sodium in Liver Cirrhosis, sponsored by Boehringer Ingelheim. Completed at 1 site in Germany. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2025-09-10.

Sponsored by Boehringer Ingelheim · Not applicable, Interventional, and Other

Phase
Not applicable
Study type
Interventional
Enrollment
4
Allocation
Non-randomized
Ages
18 Years to 75 Years
Sex
All
01

Study summary

This study is open to healthy adults and adults with liver cirrhosis. The purpose of this study is to compare how different medicines are handled by the body in people with and without liver cirrhosis. The study measures if the approved medicines caffeine, warfarin,omeprazole, metoprolol, and midazolam are processed differently in people with liver cirrhosis than in people without liver cirrhosis. This study will help to understand how new medicines being developed are handled by the body in people with liver cirrhosis.

There are 3 groups in this study: people without liver cirrhosis, people with mild liver cirrhosis, and people with moderate liver cirrhosis. All participants get 1 dose each of caffeine, warfarin, omeprazole, metoprolol, and midazolam by mouth. The participants with liver cirrhosis continue their regular treatment for the condition during the study.

Participants are in the study for about 1 month. During this time, they visit the study site 5 times. For 1 of the visits, participants stay overnight for 2 nights at the study site. To assess the main study endpoint, the doctors take frequent blood samples from the participants. The doctors also regularly check participants' health and take note of any unwanted effects.

02

Conditions studied

  • Liver Cirrhosis

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03

In context

Liver Cirrhosis

1,642 studies on the registry are indexed under Liver Cirrhosis; 358 are open to participants now.

This study's enrollment of 4 is below the median of 72 across 995 interventional studies indexed under Liver Cirrhosis.

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Lead sponsor

Boehringer Ingelheim is the lead sponsor of 2,245 studies on the registry; 58 are open to participants now.

Of its 162 completed or terminated interventional studies of FDA-regulated products, 116 (72%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

Healthy 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 trial
  • Either 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 condom
    • Use of progestogen-only hormonal contraception that inhibits ovulation (only injectables or implants), plus condom
    • Use of intrauterine device (IUD) or intrauterine hormone-releasing system (IUS)
    • Sexually abstinent
    • A 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 participant
    • Surgically 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 tests
  • Age 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 BMI
  • further inclusion criteria apply

F4 liver cirrhosis patients only

  • Male and female subjects, 18 to 75 years
  • BMI of 18.5 to 40.0 kg/m2 (inclusive)
  • Stable treatment for at least 4 weeks prior to taking the cocktail. Furthermore, patients can only be included into the trial a) if they are in constant specialist care at the timepoint of enrollment into the study and b) if they are willing to continue to be in specialist care after participation in the 0352.2190 study
  • further inclusion criteria apply

Exclusion criteria

Exclusion criteria

Healthy 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 blockers
  • Repeated 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 disorders
  • History of relevant orthostatic hypotension, fainting spells, or blackouts
  • Relevant (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 trial
  • further exclusion criteria apply
05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
4 participants (actual)

Study arms

  • Experimental
    Group 1: Healthy participants

    Every participant receives a cocktail of Caffeine, Warfarin sodium, Omeprazole, Metoprolol, Midazolam.

    Drug: Caffeine · Drug: Warfarin sodium · Drug: Omeprazole · Drug: Metoprolol · Drug: Midazolam

  • Experimental
    Group 2: F4 Child-Turcotte-Pugh class A (Child-Pugh A) participants (compensated)

    Every participant receives a cocktail of Caffeine, Warfarin sodium, Omeprazole, Metoprolol, Midazolam. Compensated=without any disease symptoms

    Drug: Caffeine · Drug: Warfarin sodium · Drug: Omeprazole · Drug: Metoprolol · Drug: Midazolam

  • Experimental
    Group 3: F4 Child-Turcotte-Pugh class B (Child-Pugh B) participants (decompensated)

    Every participant receives a cocktail of Caffeine, Warfarin sodium, Omeprazole, Metoprolol, Midazolam. Decompensated= with disease symptoms like aszites, variceal bleeding, hepatic encephalopathy, hepato-renal syndrome

    Drug: Caffeine · Drug: Warfarin sodium · Drug: Omeprazole · Drug: Metoprolol · Drug: Midazolam

Interventions

  • DrugCaffeine

    Caffeine

  • DrugWarfarin sodium

    Warfarin sodium

  • DrugOmeprazole

    Omeprazole

  • DrugMetoprolol

    Metoprolol

  • DrugMidazolam

    Midazolam

06

What researchers measure

Primary outcomes

  1. Area Under the Concentration Time Curve of Caffeine, Omeprazole and Metoprolol in Plasma Over the Time Interval From 0 to 24 Hours (AUC0-24)

    Area under the concentration time curve of caffeine, omeprazole and metoprolol in plasma over the time interval from 0 to 24 hours (AUC0-24) is reported.

    Time frame: 2 hours before drug administration and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48-72 and 96 (+/-12) hours after drug administration.

  2. Area Under the Concentration Time Curve of Midazolam in Plasma Over the Time Interval From 0 to 24 Hours (AUC0-24)

    Area under the concentration time curve of midazolam in plasma over the time interval from 0 to 24 hours (AUC0-24) is reported.

    Time frame: 2 hours before drug administration and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48-72 and 96 (+/-12) hours after drug administration.

  3. Area Under the Concentration Time Curve of R-warfarin and S-warfarin in Plasma Over the Time Interval From 0 to 96 Hours (AUC0-96)

    Area under the concentration time curve of R-warfarin and S-warfarin in plasma over the time interval from 0 to 96 hours (AUC0-96) is reported.

    Time frame: 2 hours before drug administration and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48-72 and 96 (+/-12) hours after drug administration.

  4. Maximum Measured Concentration of Caffeine, Omeprazole, Metoprolol, R-warfarin and S-warfarin in Plasma (Cmax)

    Maximum measured concentration of caffeine, omeprazole, metoprolol, R-warfarin and S-warfarin in plasma (Cmax) is reported.

    Time frame: 2 hours before drug administration and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48-72 and 96 (+/-12) hours after drug administration.

  5. Maximum Measured Concentration of Midazolam in Plasma (Cmax)

    Maximum measured concentration of midazolam in plasma (Cmax) is reported.

    Time frame: 2 hours before drug administration and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48-72 and 96 (+/-12) hours after drug administration.

07

Results

Posted Sep 10, 2025

Participant flow

The study aimed to investigate whether the metabolic activity of selected CYP isozymes differs between F4 liver cirrhosis patients receiving standard therapy and healthy subjects. It was planned that 12 healthy subjects, 12 compensated F4 Child-Pugh A patients and a minimum of 6 decompensated Child-Pugh B patients following clinical confirmation enter the study. Due to insufficient enrollment only 4 patients, all from Child-Pugh A cohort, were entered into the trial.

Participant flow — Overall Study
MilestoneChild-Pugh A
Started4
Completed4
Not completed0

Outcome measures

PrimaryArea Under the Concentration Time Curve of Caffeine, Omeprazole and Metoprolol in Plasma Over the Time Interval From 0 to 24 Hours (AUC0-24)

Area under the concentration time curve of caffeine, omeprazole and metoprolol in plasma over the time interval from 0 to 24 hours (AUC0-24) is reported.

Time frame:
2 hours before drug administration and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48-72 and 96 (+/-12) hours after drug administration.
Reported as:
Geometric mean · Hour*nanogram/milliliter
Area Under the Concentration Time Curve of Caffeine, Omeprazole and Metoprolol in Plasma Over the Time Interval From 0 to 24 Hours (AUC0-24)
Hour*nanogram/milliliterChild-Pugh A
Caffeine20600 ± 37.3
Omeprazole1520 ± 164
Metoprolol287 ± 71.1
PrimaryArea Under the Concentration Time Curve of Midazolam in Plasma Over the Time Interval From 0 to 24 Hours (AUC0-24)

Area under the concentration time curve of midazolam in plasma over the time interval from 0 to 24 hours (AUC0-24) is reported.

Time frame:
2 hours before drug administration and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48-72 and 96 (+/-12) hours after drug administration.
Reported as:
Geometric mean · Hour*picogram/milliliter
Area Under the Concentration Time Curve of Midazolam in Plasma Over the Time Interval From 0 to 24 Hours (AUC0-24)
Hour*picogram/milliliterChild-Pugh A
Area Under the Concentration Time Curve of Midazolam in Plasma Over the Time Interval From 0 to 24 Hours (AUC0-24)31200 ± 51.1
PrimaryArea Under the Concentration Time Curve of R-warfarin and S-warfarin in Plasma Over the Time Interval From 0 to 96 Hours (AUC0-96)

Area under the concentration time curve of R-warfarin and S-warfarin in plasma over the time interval from 0 to 96 hours (AUC0-96) is reported.

Time frame:
2 hours before drug administration and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48-72 and 96 (+/-12) hours after drug administration.
Reported as:
Geometric mean · Hour*nanogram/milliliter
Area Under the Concentration Time Curve of R-warfarin and S-warfarin in Plasma Over the Time Interval From 0 to 96 Hours (AUC0-96)
Hour*nanogram/milliliterChild-Pugh A
R-warfarin11200 ± 18.3
S-warfarin5350 ± 24.7
PrimaryMaximum Measured Concentration of Caffeine, Omeprazole, Metoprolol, R-warfarin and S-warfarin in Plasma (Cmax)

Maximum measured concentration of caffeine, omeprazole, metoprolol, R-warfarin and S-warfarin in plasma (Cmax) is reported.

Time frame:
2 hours before drug administration and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48-72 and 96 (+/-12) hours after drug administration.
Reported as:
Geometric mean · Nanogram/milliliter
Maximum Measured Concentration of Caffeine, Omeprazole, Metoprolol, R-warfarin and S-warfarin in Plasma (Cmax)
Nanogram/milliliterChild-Pugh A
Caffeine2650 ± 23.4
Omeprazole487 ± 67.9
Metoprolol73.9 ± 72.3
R-warfarin225 ± 26.3
S-warfarin226 ± 26.8
PrimaryMaximum Measured Concentration of Midazolam in Plasma (Cmax)

Maximum measured concentration of midazolam in plasma (Cmax) is reported.

Time frame:
2 hours before drug administration and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48-72 and 96 (+/-12) hours after drug administration.
Reported as:
Geometric mean · Picogram/milliliter
Maximum Measured Concentration of Midazolam in Plasma (Cmax)
Picogram/milliliterChild-Pugh A
Maximum Measured Concentration of Midazolam in Plasma (Cmax)9520 ± 38.9

Adverse events

Collected over Adverse events and all-cause mortality: From administration of drug cocktail plus residual effect period, up to 9 days.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Child-Pugh A0/4 (0%)0/4 (0%)2/4 (50%)
Most frequent other events
Most frequent other events
EventChild-Pugh A
Atrioventricular block first degreeCardiac disorders1/4
Back painMusculoskeletal and connective tissue disorders1/4

Baseline characteristics

Treated Set (TS): All subjects who signed informed consent and were treated with study drug.

Age, Continuous
Age, Continuous(Years)Child-Pugh A
Mean66.8 ± 7.1
Sex: Female, Male
Sex: Female, Male(Participants)Child-Pugh A
Female3
Male1
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Child-Pugh A
Hispanic or Latino0
Not Hispanic or Latino4
Unknown or Not Reported0
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Child-Pugh A
American Indian or Alaska Native0
Asian0
Native Hawaiian or Other Pacific Islander0
Black or African American0
White4
More than one race0
Unknown or Not Reported0
08

Study locations

1 site
  • CRS Clinical Research Services Mannheim GmbH
    Mannheim, 68167, Germany
09

References and documents

Related links

Study documents

  • Study protocol · Feb 24, 2023
  • Statistical analysis plan · May 9, 2025

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No — Clinical studies sponsored by Boehringer Ingelheim, phases I to IV, interventional and non-interventional, are in scope for sharing of the raw clinical study data and clinical study documents. Exceptions might apply, e.g., studies in products where Boehringer Ingelheim is not the license holder; studies regarding pharmaceutical formulations and associated analytical methods, and studies pertinent to pharmacokinetics using human biomaterials; studies conducted in a single center or targeting rare diseases (in case of low number of patients and therefore limitations with anonymization). For more details refer to: https:// www.mystudywindow.com/msw/datatransparency

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 10, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT05741385
Lead sponsor
Boehringer Ingelheim
Responsible party
Sponsor
First posted
Feb 23, 2023
Start date
Oct 10, 2023
Primary completion
Aug 9, 2024
Completion
Aug 23, 2024
Results posted
Sep 10, 2025
Last update
Sep 10, 2025

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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