A Study in Healthy Men to Test How Itraconazole Influences the Amount of BI 1815368 in the Blood

Effect of Itraconazole on the Pharmacokinetics of a Single Oral Dose of BI 1815368 in Healthy Male Subjects (an Open-label, Two-period Fixed-sequence Design Study)

The main objective of this trial is to investigate the effect on the exposure of BI 1815368 in plasma when given as oral single dose together with multiple oral doses of itraconazole (Test, T) as compared to when given alone as oral single dose (Reference, R).

Study Overview

• Status: Completed
• Conditions: Healthy
• Intervention / Treatment: Drug: Itraconazole; Drug: BI 1815368

• Study Type: Interventional
• Enrollment (Actual): 14
• Phase: Phase 1

Contacts and Locations

Study Locations

• Germany
  • Biberach, Germany, 88397
    • Humanpharmakologisches Zentrum Biberach

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 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, pulse rate), 12-lead electrocardiogram, and clinical laboratory tests
• Age of 18 to 55 years (inclusive)
• Body mass index (BMI) of 18.5 to 29.9 kilograms per square meter (kg/m^2) (inclusive)
• Signed and dated written informed consent in accordance with International Conference of Harmonization-Good Clinical Practice (ICH-GCP) and local legislation prior to admission to the trial

Exclusion Criteria:

• Any finding in the medical examination (including blood pressure, pulse rate or electrocardiogram) deviating from normal and assessed as clinically relevant by the investigator
• Repeated measurement of systolic blood pressure outside the range of 90 to 140 millimeter of mercury (mmHg), diastolic blood pressure outside the range of 50 to 90 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
• Relevant chronic or acute infections

Further exclusion criteria may apply.

Study Plan

How is the study designed?

Design Details

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

Number of Arms

1

Arms and Interventions

Participant Group / Arm

Intervention / Treatment

Experimental: BI 1815368 (Reference, R) then BI 1815368 + Itraconazole (Test, T); Subjects were administered during Period 1 on Day 1/Visit 2 a single oral dose of BI 1815368 tablet with 240 milliliters (ml) of water following an overnight fast of at least 10 hours (h) as reference treatment R. On Days -3 to 6/Visit 3 of Period 2, subjects were administered a 20 mL (200 mg) oral solution of itraconazole with 240 mL of water after an overnight fast of at least 9 hours once daily for 9 days (9 doses in total). On Day 1/Visit 3 of this period, they received a single oral dose of BI 1815368 tablet with 240 mL of water following an overnight fast of at least 10 hours (h). This combined treatment constituted the test treatment T. The BI 1815368 single doses of Treatments R (Visit 2) and T (Visit 3) were separated by a washout period of at least 7 days.

Drug: Itraconazole; Itraconazole; Other Names: Sempera®; Drug: BI 1815368; BI 1815368

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Area Under the Concentration-time Curve of BI 1815368 Over the Time Interval From 0 Extrapolated to Infinity (AUC0-∞)	Area under the concentration-time curve of BI 1815368 in plasma over the time interval from 0 extrapolated to infinity (AUC0-∞) is reported. Geometric least squares mean (adjusted geometric mean) and adjusted geometric standard error were calculated using an analysis of variance model (ANOVA) on the logarithmic scale. The pharmacokinetic (PK) endpoints were log-transformed (natural logarithm) prior to fitting the ANOVA model. The model included 'subjects' as a random effect and treatment as a fixed effect. These quantities were then back transformed to the original scale to provide the point estimate and 90% confidence intervals (CIs) for each endpoint.	Within 3 hours prior to and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 12, 24, 34, 47, and 71 hours for both periods, and additionally at 95, 119 and 143 hours for Period 2 after BI 1815368 administration.
Maximum Measured Concentration of BI 1815368 in Plasma (Cmax)	Maximum measured concentration (Cmax) of BI 1815368 in plasma is reported. Geometric least squares mean (adjusted geometric mean) and adjusted geometric standard error were calculated using an analysis of variance model (ANOVA) on the logarithmic scale. The pharmacokinetic (PK) endpoints were log-transformed (natural logarithm) prior to fitting the ANOVA model. The model included 'subjects' as a random effect and treatment as a fixed effect. These quantities were then back transformed to the original scale to provide the point estimate and 90% CIs for each endpoint.	Within 3 hours prior to and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 12, 24, 34, 47, and 71 hours for both periods, and additionally at 95, 119 and 143 hours for Period 2 after BI 1815368 administration.

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Area Under the Concentration-time Curve of BI 1815368 in Plasma Over the Time Interval From 0 to the Last Quantifiable Data Point (AUC0-tz)	Area under the concentration-time curve of BI 1815368 in plasma over the time interval from 0 to the last quantifiable data point (AUC0-tz) is reported. Geometric least squares mean (adjusted geometric mean) and adjusted geometric standard error were calculated using an analysis of variance model (ANOVA) on the logarithmic scale. The pharmacokinetic (PK) endpoints were log-transformed (natural logarithm) prior to fitting the ANOVA model. The model included 'subjects' as a random effect and treatment as a fixed effect. These quantities were then back transformed to the original scale to provide the point estimate and 90% CIs for each endpoint.	Within 3 hours prior to and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 12, 24, 34, 47, and 71 hours for both periods, and additionally at 95, 119 and 143 hours for Period 2 after BI 1815368 administration.

Collaborators and Investigators

• Sponsor: Boehringer Ingelheim

Publications and helpful links

Helpful Links

• Related Info

Study record dates

Study Major Dates

• Study Start (Actual): August 2, 2023
• Primary Completion (Actual): October 24, 2023
• Study Completion (Actual): October 24, 2023

Study Registration Dates

• First Submitted: July 19, 2023
• First Submitted That Met QC Criteria: July 19, 2023
• First Posted (Actual): July 28, 2023

Study Record Updates

• Last Update Posted (Actual): May 12, 2026
• Last Update Submitted That Met QC Criteria: April 21, 2026
• Last Verified: April 1, 2026

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Heterocyclic Compounds, 1-Ring; Heterocyclic Compounds; Azoles; Triazoles; Piperazines; Itraconazole
• Other Study ID Numbers: 1485-0003; 2023-503783-16-00 (Registry Identifier: CTIS (EU))

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: Yes
• Studies a U.S. FDA-regulated device product: No