# Clairleafᵀᴹ: A Study to Test Long-term Treatment With BI 1291583 in People With Bronchiectasis Who Took Part in a Previous Study With This Medicine

> **NCT05846230** · PHASE2 · ACTIVE_NOT_RECRUITING · sponsor: **Boehringer Ingelheim** · enrollment: 268 (actual)

## Conditions studied

- Bronchiectasis

## Interventions

- **DRUG:** BI 1291583
- **DRUG:** Placebo matching BI 1291583

## Key facts

- **NCT ID:** NCT05846230
- **Lead sponsor:** Boehringer Ingelheim
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** ACTIVE_NOT_RECRUITING
- **Start date:** 2023-09-08
- **Primary completion:** 2027-03-31
- **Final completion:** 2027-03-31
- **Target enrollment:** 268 (ACTUAL)
- **Last updated:** 2026-04-01


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05846230

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05846230, "Clairleafᵀᴹ: A Study to Test Long-term Treatment With BI 1291583 in People With Bronchiectasis Who Took Part in a Previous Study With This Medicine". Retrieved via AI Analytics 2026-09-21 from https://api.ai-analytics.org/clinical/NCT05846230. Licensed CC0.

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