A Study in Healthy Men to Test How Itraconazole Influences the Amount of BI 706321 in the Blood

September 11, 2025 updated by: Boehringer Ingelheim

Effect of Itraconazole on the Pharmacokinetics of a Single Oral Dose of BI 706321 in Healthy Male Subjects (an Open-label, Two-period Fixed Sequence Design Study)

To investigate the pharmacokinetics of a single oral dose of BI 706321 when given alone or in combination with itraconazole.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

14

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

      • Mannheim, Germany, 68167
        • CRS Clinical Research Services Mannheim GmbH

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 50 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 (body temperature, blood pressure (BP), pulse rate (PR)), 12-lead electrocardiogram (ECG), and clinical laboratory tests
  • Age of 18 to 50 years (inclusive)
  • Body mass index (BMI) of 18.5 to 29.9 kg/m2 (inclusive)
  • Signed and dated written informed consent prior to admission to the study, in accordance with GCP and local legislation

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 mmHg, or pulse rate outside the range of 45 to 90 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
  • During COVID-19 pandemic: laboratory test indicative of an ongoing SARS-CoV-2 infection 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: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: BI 706321 (Reference (R))/ BI 706321 + Itraconazole (Test (T))

On trial day 1 of treatment period 1, a single oral dose of 1 film-coated tablet of 2 milligram (mg) BI 706321 was administered with 240 milliliter (mL) of water after an overnight fast of at least 10 hours (h) as reference treatment (R).

In treatment period 2: 200 mg itraconazole was administered as an oral solution formulation (concentration: 20 mL of 10 mg/mL) once daily for 14 days orally with 240 mL of water after an overnight fast of at least 9 h, starting from day -3 up to day 11 of period 2. On day 1 of period 2 (1 h after the itraconazole administration) a single oral dose of 1 film-coated tablet of 2 mg BI 706321 was administered with 240 mL of water after an overnight fast of at least 10 h (Test Treatment (T)).

There was a washout interval of at least 14 days between the administrations of BI 706321 in the 2 trial periods.

Treatment period 1: Single oral dose of 1 film-coated tablet administered with 240 milliliter (mL) of water after an overnight fast of at least 10 hours (h) Treatment period 2: On day 1 of period 2 (1 h after the itraconazole administration) a single oral dose of 1 film-coated tablet administered with 240 mL of water after an overnight fast of at least 10 h.
Treatment period 2: Administered as an oral solution formulation once daily for 14 days orally with 240 mL of water after an overnight fast of at least 9 h, starting from day -3 up to day 11 of period 2.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Area Under the Concentration-time Curve of BI 706321 in Plasma Over the Time Interval From 0 Extrapolated to Infinity (AUC0-∞)
Time Frame: Within 3 hours (h) (1h for period 2) before and at 0.5h to 190h after BI 706321 administration in each period. Further at 214h to 550h after BI 706321 administration in period 2.
Area under the concentration-time curve of BI 706321 in plasma over the time interval from 0 extrapolated to infinity (AUC0-∞).
Within 3 hours (h) (1h for period 2) before and at 0.5h to 190h after BI 706321 administration in each period. Further at 214h to 550h after BI 706321 administration in period 2.
Maximum Measured Concentration of BI 706321 in Plasma (Cmax)
Time Frame: Within 3 hours (h) (1h for period 2) before and at 0.5h to 190h after BI 706321 administration in each period. Further at 214h to 550h after BI 706321 administration in period 2.
Maximum measured concentration of BI 706321 in plasma (Cmax).
Within 3 hours (h) (1h for period 2) before and at 0.5h to 190h after BI 706321 administration in each period. Further at 214h to 550h after BI 706321 administration in period 2.

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Area Under the Concentration-time Curve of BI 706321 in Plasma Over the Time Interval From 0 to the Last Quantifiable Data Point (AUC0-tz)
Time Frame: Within 3 hours (h) (1h for period 2) before and at 0.5h to 190h after BI 706321 administration in each period. Further at 214h to 550h after BI 706321 administration in period 2.
Area under the concentration-time curve of BI 706321 in plasma over the time interval from 0 to the last quantifiable data point (AUC0-tz).
Within 3 hours (h) (1h for period 2) before and at 0.5h to 190h after BI 706321 administration in each period. Further at 214h to 550h after BI 706321 administration in period 2.

Collaborators and Investigators

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

Sponsor

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)

February 11, 2021

Primary Completion (Actual)

April 30, 2021

Study Completion (Actual)

April 30, 2021

Study Registration Dates

First Submitted

January 15, 2021

First Submitted That Met QC Criteria

January 15, 2021

First Posted (Actual)

January 19, 2021

Study Record Updates

Last Update Posted (Estimated)

September 12, 2025

Last Update Submitted That Met QC Criteria

September 11, 2025

Last Verified

September 1, 2025

More Information

Terms related to this study

Other Study ID Numbers

  • 1425-0010
  • 2020-004388-22 (EudraCT Number)

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, except for the following exclusions:

  1. studies in products where Boehringer Ingelheim is not the license holder;
  2. studies regarding pharmaceutical formulations and associated analytical methods, and studies pertinent to pharmacokinetics using human biomaterials;
  3. studies conducted in a single center or targeting rare diseases (because of limitations with anonymization).

For more details refer to: https://www.mystudywindow.com/msw/datasharing

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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