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HealthyPhase 1NCT07693218

A Study in Healthy Men to Test How BI 1815368 is Processed in the Body

A Phase 1 study testing BI 1815368 (C-14) and BI 1815368 (C-13) in people with Healthy, run by Boehringer Ingelheim at 1 site in Netherlands.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The main objectives are: To assess mass balance by determining the extent of recovery of total [¹⁴C]-radioactivity in urine and faeces after a single oral dose administration of BI 1815368 (C-14) (test treatment T) in healthy male trial participants. Read more about this study

Who is it for?
Ages 18 to 55 years, men onlyHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
BI 1815368 (C-14) and BI 1815368 (C-13)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
8 participants
Where
1 siteNetherlands
Study dates
16 Jul 2026to 4 Sep 2026
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 55 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Healthy male trial participant as determined by 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) at screening
  • Body mass index (BMI) of 18.5 to 29.9 kg / m2 (inclusive) at screening
  • Signed and dated written informed consent in accordance with ICH-GCP and local legislation prior to any trial-related procedure

Who cannot join

  • Any finding in the medical examination (including BP, PR or ECG) deviating from normal and assessed as assessed 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 as judged by the investigator
  • Any evidence of a concomitant disease considered clinically relevant by the investigator Further exclusion criteria apply.

Trial locations and contacts

1 site in 1 country.

Netherlands1 site
  • ICON-Groningen-62040

    Groningen, 9728 NZ

Other trials in Netherlands

About this study

Official title: A Human Absorption, Distribution, Metabolism and Excretion (hADME) and Absolute Bioavailability Trial After a Single Micro-tracer Dose of BI 1815368 (C-14) and a Single, Concomitant, Intravenous Micro-dose of BI 1815368 (C-13) in Healthy Male Trial Participants (a Phase I, Open-label, Non Randomised, Single-dose, Fixed-sequence Trial)

The main objectives are:

  • To assess mass balance by determining the extent of recovery of total [¹⁴C]-radioactivity in urine and faeces after a single oral dose administration of BI 1815368 (C-14) (test treatment T) in healthy male trial participants.
  • To investigate the absolute bioavailability of BI 1815368 using a single, concomitant intravenous micro-dose administration of BI 1815368 (C13) (reference treatment R).
  • To provide plasma, urine, and faecal samples
Conditions
Healthy
Being tested
BI 1815368 (C-14), BI 1815368 (C-13)

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • BI 1815368 (C-14)Drug

    Unlabeled BI 1815368 mixed with [C-14]-labeled BI 1815368

  • BI 1815368 (C-13)Drug

    [13C]-labeled BI 1815368

Study groups in NCT07693218
Study groupRoleWhat they receive
BI 1815368 (C-14) (Test) followed by BI 1815368 (C-13) (Reference)ExperimentalNot described
Receives: Drug: BI 1815368 (C-14); Drug: BI 1815368 (C-13)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Fraction of [14C]-radioactivity excreted in urine as percentage of the administered dose over the time interval from 0 to the last quantifiable time point (fe urine,0-tz)

    Measured: Up to 24 days

  2. Fraction of [14C]-radioactivity excreted in faeces as percentage of the administered dose over the time interval from 0 to the last quantifiable time point (fe faeces,0-tz)

    Measured: Up to 24 days

  3. Sum of fe urine,0-tz and fe faeces,0-tz (total recovery of [14C]-radioactivity)

    Measured: Up to 24 days

  4. Area under the concentration-time curve of BI 1815368 in plasma over the time interval from 0 extrapolated to infinity (AUC0-∞), after oral administration of BI 1815368 (C-14)

    Measured: Up to 24 days

  5. AUC0-∞ of [13C]- BI 1815368, after a concomitant IV infusion of BI 1815368 (C-13)

    Measured: Up to 24 days

Secondary outcomes (6)
  1. Maximum measured concentration of BI 1815368 in plasma (Cmax), after oral administration of BI 1815368 (C-14)

    Measured: Up to 24 days

  2. Area under the concentration-time curve of BI 1815368 in plasma over the time interval from 0 to the last quantifiable data point, after oral administration of BI 1815368 (C-14)

    Measured: Up to 24 days

  3. Cmax of [14C]-radioactivity, after oral administration of BI 1815368 (C-14)

    Measured: Up to 24 days

  4. AUC0-tz of [14C]-radioactivity, after oral administration of BI 1815368 (C-14)

    Measured: Up to 24 days

  5. Cmax of [13C]- BI 1815368

    Measured: Up to 24 days

  6. AUC0-tz of [13C]- BI 1815368

    Measured: Up to 24 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Jul 2026
  2. Study start16 Jul 2026
  3. Primary completion29 Aug 2026
  4. Study completion4 Sep 2026

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Sequential
Masking
None (open label)
Enrolment
8 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07693218
Sponsor's protocol ID
1485-0012
Other IDs
2025-523949-10, U1111-1328-2409, 2025
Status last verified
Sep 2026
First submitted
3 Jul 2026
Last updated
15 Sep 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
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.clinicalstudies.boehringer-ingelheim.com/msw/datasharing

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing BI 1815368 (C-14) and BI 1815368 (C-13) in people with Healthy, run by Boehringer Ingelheim at 1 site in Netherlands.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 15 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Netherlands. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Fraction of [14C]-radioactivity excreted in urine as percentage of the administered dose over the time interval from 0 to the last quantifiable time point (fe urine,0-tz) (time frame: Up to 24 days). The study lists 5 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Sep 2026.

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