# Boston Scientific Corporation: Not applicable (device, behavioral) study closed enrollment, 3000 enrolled (Atrial Fibrillation, Stroke)

**Score:** 60/100

| Field | Value |
|---|---|
| Sponsor | Boston Scientific Corporation |
| Sponsor type | Industry (pharma, biotech, medtech) |
| Study | CHAMPION-AF Clinical Trial |
| NCT ID | NCT04394546 |
| Phase | Not applicable (device, behavioral) |
| Status | active not recruiting |
| Conditions | Atrial Fibrillation; Stroke; Bleeding |
| Intervention types | device, drug |
| Target enrollment | 3000 |
| Site countries | United States, Australia, Belgium, Canada, Denmark, France, Germany, Israel, Italy, Japan, Netherlands, Poland |
| Posted | 2020-05-19 |
| Planned start | 2020-10-15 |
| Event | Enrollment closed (active, not recruiting) |
| Event date | 2026-10-14 |
| Last update posted | 2026-10-14 |

## Why this score
- Industry sponsor (buys outsourced services).
- Enrollment closed: data management, monitoring and closeout ahead.
- 3000 participants planned.

Source: ClinicalTrials.gov (U.S. National Library of Medicine) API v2 (https://clinicaltrials.gov/study/NCT04394546). Last refreshed: 2026-11-04T06:04:38.232Z.
From public ClinicalTrials.gov registrations. Sponsor and study level only: we never list investigators, contacts or participants. A registration describes a planned study and can change. Status changes are read from each study's current status, actual dates and latest posted update, not a full change history, so an update can be a correction rather than a new change. Verify on ClinicalTrials.gov.