Drug interaction check: will itraconazole alter BI 1015550 levels?

NCT ID NCT03403439

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This completed Phase 1 trial tested whether taking the antifungal itraconazole changes how the body processes a single dose of the experimental drug BI 1015550 (Nerandomilast). Sixteen healthy men received the drug alone and then again while on a 12-day course of itraconazole. Researchers measured drug levels in the blood to see if there is a meaningful interaction.

What this could mean

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

Active substance
BI 1015550 (Nerandomilast) and itraconazole
What this could lead to
If successful, this study will show whether itraconazole changes how the body absorbs BI 1015550, helping guide safe dosing in future trials.
What could go wrong
This is a very early, small study in only 16 healthy men, so results may not apply to patients or predict real-world effects.

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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

  • Humanpharmakologisches Zentrum Biberach

    Biberach, 88397, Germany

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