A Study in Healthy Men to Test Whether BI 425809 Influences the Amount of Midazolam in the Blood

March 10, 2026 updated by: Boehringer Ingelheim

The Effect of Multiple Oral Doses of BI 425809 on Metabolism of Midazolam Administered Orally in Healthy Male Subjects (Open-label, Two-period, One-sequence Trial)

In order to assess the potential impact of steady state BI 425809 on CYP3A clinically, the effect of BI 425809 on the midazolam pharmacokinetics will be evaluated. Midazolam is a recommended substrate of CYP3A4.

Study Overview

Status

Completed

Conditions

Study Type

Interventional

Enrollment (Actual)

15

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Biberach, Germany, 88397
        • Humanpharmakologisches Zentrum Biberach

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 55 years (Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Healthy male 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 55 years (inclusive)
  • Body mass index (BMI) of 18.5 to 29.9 kg/m2 (inclusive)
  • 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

Exclusion Criteria:

  • Any finding in the medical examination (including BP, PR or ECG) deviating from normal and assessed as clinically relevant by the investigator
  • Repeated measurement of systolic blood pressure outside the range of 90 to 140 mmHg, diastolic blood pressure outside the range of 50 to 90 millimetre of mercury (mmHg), or pulse rate outside the range of 45 to 90 beats per minute (bpm)
  • Any laboratory value outside the reference range that the investigator considers to be of clinical relevance
  • Any evidence of a concomitant disease assessed as clinically relevant by the investigator
  • Gastrointestinal, hepatic, renal, respiratory, cardiovascular, metabolic, immunological or hormonal disorders
  • 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 Further exclusion criteria apply

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Sequential Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: midazolam alone (Reference (R)) / midazolam + iclepertin (BI 425809) (Test (T))
All participants were orally administered a single dose of 2 milligrams (mg) midazolam solution alone on Day 1 of Period 1 (reference treatment). All participants were also orally administered one film-coated tablet of 10 mg iclepertin (BI 425809) once daily over 21 days (from Day -20 until Day 1 of Period 2) and 2 mg midazolam oral solution concomitantly with a film-coated tablet of 10 mg iclepertin on Day 1 of Period 2 (test treatment). There was a washout phase of at least 24 hours between the administration of midazolam in Period 1 and the first iclepertin administration in Period 2. The treatments were to be given under fasting conditions with 240 milliLiter (mL) of water.
midazolam
Other Names:
  • Midazolam-ratiopharm® 2 mg/ml solution
BI 425809

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Area Under the Concentration-time Curve of Midazolam in Plasma Over the Time Interval From 0 to the Last Quantifiable Data Point (AUC0-tz)
Time Frame: Plasma concentrations of midazolam were measured within 1 hour (h) before and at 30 minutes (min), 1h, 1h 30 min, 2h, 3h, 4h, 6h, 8h, 10h, and 12h after administration of midazolam alone or in combination with iclepertin (BI 425809).
Area under the concentration-time curve of midazolam in plasma over the time interval from 0 to the last quantifiable data point (AUC0-tz) is presented.
Plasma concentrations of midazolam were measured within 1 hour (h) before and at 30 minutes (min), 1h, 1h 30 min, 2h, 3h, 4h, 6h, 8h, 10h, and 12h after administration of midazolam alone or in combination with iclepertin (BI 425809).
Maximum Measured Concentration of Midazolam in Plasma (Cmax)
Time Frame: Plasma concentrations of midazolam were measured within 1 hour (h) before and at 30 minutes (min), 1h, 1h 30 min, 2h, 3h, 4h, 6h, 8h, 10h, and 12h after administration of midazolam alone or in combination with iclepertin (BI 425809).
Maximum measured concentration of midazolam in plasma (Cmax) is presented.
Plasma concentrations of midazolam were measured within 1 hour (h) before and at 30 minutes (min), 1h, 1h 30 min, 2h, 3h, 4h, 6h, 8h, 10h, and 12h after administration of midazolam alone or in combination with iclepertin (BI 425809).

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Area Under the Concentration-time Curve of Midazolam in Plasma Over the Time Interval From 0 Extrapolated to Infinity (AUC0-∞)
Time Frame: Plasma concentrations of midazolam were measured within 1 hour (h) before and at 30 minutes (min), 1h, 1h 30 min, 2h, 3h, 4h, 6h, 8h, 10h, and 12h after administration of midazolam alone or in combination with iclepertin (BI 425809).
Area under the concentration-time curve of midazolam in plasma over the time interval from 0 extrapolated to infinity (AUC0-∞) is presented.
Plasma concentrations of midazolam were measured within 1 hour (h) before and at 30 minutes (min), 1h, 1h 30 min, 2h, 3h, 4h, 6h, 8h, 10h, and 12h after administration of midazolam alone or in combination with iclepertin (BI 425809).

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 18, 2022

Primary Completion (Actual)

May 31, 2022

Study Completion (Actual)

May 31, 2022

Study Registration Dates

First Submitted

February 24, 2022

First Submitted That Met QC Criteria

February 24, 2022

First Posted (Actual)

February 28, 2022

Study Record Updates

Last Update Posted (Actual)

March 30, 2026

Last Update Submitted That Met QC Criteria

March 10, 2026

Last Verified

March 1, 2023

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

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

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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