A Trial That Evaluates Disease Characteristics in Hemophilia B Adult Male Participants Receiving Prophylaxis With Standard of Care Factor IX Protein (FIX) Replacement Therapy
Public ClinicalTrials.gov record NCT05568459. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Prospective Study to Evaluate Disease Characteristics in Hemophilia B Participants Receiving Prophylaxis With Standard of Care FIX Replacement Therapy
Study identification
- NCT ID
- NCT05568459
- Recruitment status
- Active, not recruiting
- Study type
- Observational
- Phase
- Not listed
- Lead sponsor
- Regeneron Pharmaceuticals
- Industry
- Enrollment
- 11 participants
Conditions and interventions
Conditions
Interventions
- Non-Interventional Other
Other
Eligibility (public fields only)
- Age range
- 16 Years and older
- Sex
- Male
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jan 16, 2024
- Primary completion
- May 20, 2026
- Completion
- May 20, 2026
- Last update posted
- Mar 18, 2026
2024 – 2026
United States locations
- U.S. sites
- 9
- U.S. states
- 9
- U.S. cities
- 9
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| University of Colorado Hemophilia and Thrombosis Center | Aurora | Colorado | 80045 | — |
| Yale HTC | New Haven | Connecticut | 06510 | — |
| Georgetown University Medical Center | Washington D.C. | District of Columbia | 20057 | — |
| University of Florida | Gainesville | Florida | 32610 | — |
| Rush University Medical Center | Chicago | Illinois | 60612 | — |
| Indiana Hemophilia and Thrombosis Center | Indianapolis | Indiana | 46260 | — |
| University of Michigan | Ann Arbor | Michigan | 48109 | — |
| Nationwide Children's Hospital | Columbus | Ohio | 43205 | — |
| University of Texas Health Science Center at Houston | Houston | Texas | 77030 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 8 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT05568459, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Mar 18, 2026 · Synced Jul 21, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT05568459 live on ClinicalTrials.gov.