Typical inclusion criteria in AAV gene therapy trials, current and proposed
| Severe hemophilia B: FIX ≤ 1% |
| Age ≥ 18 y |
| HCV RNA viral load-negative* |
| HIV-negative† |
| No previous history of FIX inhibitor |
| At least 20 exposure days to FIX concentrate |
| Anti–AAV-neutralizing antibody titer ≤ 1:5 |
| Severe hemophilia B: FIX ≤ 1% |
| Age ≥ 18 y |
| HCV RNA viral load-negative* |
| HIV-negative† |
| No previous history of FIX inhibitor |
| At least 20 exposure days to FIX concentrate |
| Anti–AAV-neutralizing antibody titer ≤ 1:5 |