Healthy men test drug interaction in Early-Stage trial

NCT ID NCT05550636

First seen Jun 27, 2026 ยท Last updated Jun 27, 2026

Summary

This completed Phase 1 trial looked at whether taking multiple doses of the experimental drug BI 1015550 (nerandomilast) changes how the body processes midazolam, a common sedative. Fifteen healthy men aged 18-55 took part. The goal was to see if BI 1015550 affects a key liver enzyme, which could matter for future patients taking other medications.

What this could mean

Our plain-language read of the trial. This is informational only โ€” not medical advice or a prediction.

Active substance
BI 1015550 (nerandomilast) and midazolam

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • CRS Clinical Research Services Mannheim GmbH

    Mannheim, 68167, Germany

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