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Long-term Follow-up Study of Male Adults With Hemophilia B Previously Treated With Etranacogene Dezaparvovec (CSL222)

Enrolling by invitation · NCT05962398

Conditions: Hemophilia B

At a glance

Research payments reported, 2025
$421,639
U.S. investigators named
16
Sites paid
15
Planned or actual enrollment
56

About the trial

Sponsor
CSL Behring
Tested
AAV5-hFIXco-Padua (genetic)
Dates
Started 2023-08-30; completion 2035-03-23
Results posted
Not yet

The primary purpose of this study is to assess the long-term safety and efficacy in male adults with hemophilia B who were treated with CSL222 (CSL222) in parent studies CSL222\_2001 (NCT03489291) or CSL222\_3001 (NCT03569891).

From ClinicalTrials.gov, last updated 2025-07-18. Full record, eligibility and contacts (opens in a new tab)

Industry funding

Csl Behring reported $421,639 in research payments for this study in 2025 (132 payments).

Products named: Hemgenix

Research payments usually go to hospitals, universities and research sites to run a study, not to the investigators personally. A payment is not evidence of wrongdoing.

U.S. investigators named on this study

Clinicians the company named as principal investigators in its Open Payments reports.

Sites paid to run it

Sources: CMS Open Payments research payments (program year 2025) and ClinicalTrials.gov, U.S. National Library of Medicine.