A Study in Healthy Men to Measure the Amount of BI 425809 in the Blood When Taken as a Tablet

Study Overview
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Brief Summary
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The primary objective of this trial is to investigate the absolute oral bioavailability of BI 425809 administered as tablet (Test, T) compared to [C-14]-BI 425809 administered as intravenous microtracer (Reference, R).

Official Title
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Investigation of Pharmacokinetics and Absolute Oral Bioavailability of BI 425809 Administered as an Oral Dose With an Intravenous Microtracer Dose of [C-14]-BI 425809 in Healthy Male Volunteers

Conditions
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Healthy

Intervention / Treatment
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* Drug: BI 425809
* Drug: BI 425809 mixed with [C-14]-BI 425809


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Healthy male subjects according to the assessment of the investigator, 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 65 years (incl.) Body mass index (BMI) of 18.5 to 29.9 kg/m2 (incl.) Signed and dated written informed consent prior to admission to the study in accordance with Good Clinical Practice (GCP) and local legislation Subjects who are sexually active must use, with their partner, highly effective contraception from the time of administration of trial medication until 4 months after administration of trial medication. Adequate methods are: Condoms plus use of hormonal contraception by the female partner that started at least 2 months prior to administration of trial medication (e.g., implants, injectables, combined oral or vaginal contraceptives, intrauterine device) or Condoms plus surgical sterilization (vasectomy at least 1 year prior to enrolment) or Condoms plus surgically sterilised partner (including hysterectomy) or Condoms plus intrauterine device or Condoms plus partner of non-childbearing potential (including homosexual men) Subjects are required to use condoms to prevent unintended exposure of the partner to the study drug via seminal fluid. Alternatively, true abstinence is acceptable when it is in line with the subject's preferred and usual lifestyle. If a subject is usually not sexually active but becomes active, with their partner, they must comply with the contraceptive requirements detailed above. Exclusion Criteria: Any finding in the medical examination (including Blood Pressure (BP), Pulse Rate (PR) or Electrocardiogram (ECG)) is deviating from normal and judged as clinically relevant by the investigator Repeated measurement of systolic blood pressure outside the range of 90 to 139 mmHg, diastolic blood pressure outside the range of 45 to 89 mmHg, or pulse rate outside the range of 40 to 100 bpm Any laboratory value outside the reference range that the investigator considers to be of clinical relevance Any evidence of a concomitant disease judged as clinically relevant by the investigator Clinically significant gastrointestinal, hepatic, renal, respiratory (including but not limited to interstitial lung disease), cardiovascular, metabolic, immunological or hormonal disorders Further exclusion criteria apply

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 65 Years

Sexes Eligible for Study
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Male

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: All subjects<br>Treatment T followed by Treatment R | Drug: BI 425809<br>* Treatment T<br>Drug: BI 425809 mixed with [C-14]-BI 425809<br>* Treatment R<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| AUC0-∞ (area under the concentration-time curve of the analyte over the time interval from 0 to infinity) |  | Up to 168 hours | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Cmax (maximum measured concentration of the analyte in plasma) |  | Up to 168 hours |