AAV Gene Therapy Screening/Observational Protocol (ECLIPSE)
Public ClinicalTrials.gov record NCT04272554. 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
Screening/Observational Protocol to Determine Patient Eligibility for Inclusion in AAV Gene Therapy Clinical Trials (ECLIPSE)
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Freeline is developing adeno-associated virus (AAV) vector based gene therapies for a number of diseases and is actively advancing a programme in Haemophilia B (HB). This study aims to collect prospective data to characterise bleeding events and Factor IX (FIX) concentrate consumption in HB patients that can be used as baseline for participants who elect to participate in a subsequent Freeline gene therapy study. The study will also screen participants for antibodies to a novel AAV vector to assess their suitability for inclusion in a Freeline gene therapy treatment study.
Study identification
- NCT ID
- NCT04272554
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 37 participants
Conditions and interventions
Conditions
Interventions
Not listed
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
- Feb 13, 2020
- Primary completion
- Oct 9, 2022
- Completion
- Oct 9, 2022
- Last update posted
- Nov 3, 2022
2020 – 2022
United States locations
- U.S. sites
- 17
- U.S. states
- 13
- U.S. cities
- 17
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Phoenix Childrens Hospital | Phoenix | Arizona | 85016 | — |
| Children's Hospital of Los Angeles | Los Angeles | California | 90027 | — |
| University of California - Davis | Sacramento | California | 95817 | — |
| University of South Florida | Tampa | Florida | 33612 | — |
| Rush University Medical Center | Chicago | Illinois | 60612 | — |
| Indiana Hemophilia and Thrombosis Center | Indianapolis | Indiana | 46260 | — |
| University of Michigan | Ann Arbor | Michigan | 48109 | — |
| University of Nebraska Medical Center | Omaha | Nebraska | 68198 | — |
| Hemophilia Center of Western New York | Buffalo | New York | 14209 | — |
| University of North Carolina (UNC) | Chapel Hill | North Carolina | 27599 | — |
| East Carolina University | Greenville | North Carolina | 27599 | — |
| University Hospitals Cleveland Medical Center | Cleveland | Ohio | 44106 | — |
| Nationwide Childrens Hospital | Columbus | Ohio | 43205 | — |
| St. Jude Children's Research Hospital | Memphis | Tennessee | 38105 | — |
| Vanderbilt University Medical Center | Nashville | Tennessee | 37212 | — |
| Lombardi Comprehensive Cancer Center at Georgetown University | Georgetown | Washington | 20057 | — |
| Blood Center of Wisconsin | Milwaukee | Wisconsin | 53226 | — |
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 39 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04272554, 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 Nov 3, 2022 · Synced Sep 21, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04272554 live on ClinicalTrials.gov.