Table 3.
Association Between ALT Flares >10× ULN and Clinical Outcomes for HBeAg-Positive Participants
| Clinical outcome | Participants free of ALT flares | Participants with ALT flares | P value | ||||
|---|---|---|---|---|---|---|---|
| Treatment initiation | N = 353 | N = 51 | <.0001 | ||||
| N | PYR | Rate | N | PYR | Rate | ||
| 104 | 297.2 | 35 | 26 | 30.7 | 85 | ||
| Specific treatments | |||||||
| TDF or ETV | 83 | 19 | |||||
| Other NA | 10 | 4 | |||||
| PEG-IFN | 4 | 1 | |||||
| Combination | 7 | 2 | |||||
| HBV DNA decline (>1 log) | N = 351 | N = 47 | |||||
| N | PYR | Rate | N | PYR | Rate | ||
| Untreateda | 54 | 235.1 | 23 | 12 | 20.4 | 59 | .003 |
| Treateda | 73 | 42.6 | 171 | 20 | 12.0 | 167 | .91 |
| HBeAg loss | N = 340 | N = 51 | |||||
| N | PYR | Rate | N | PYR | Rate | .002 | |
| Untreateda | 33 | 218.9 | 15 | 10 | 21.2 | 47 | |
| Treateda | 13 | 39.3 | 33 | 3 | 10.1 | 30 | .87 |
| HBsAg loss | N = 292 | N = 47 | |||||
| N | PYR | Rate | N | PYR | Rate | ||
| Untreateda | 2 | 199.8 | 1 | 1 | 19.2 | 5 | .18 |
| Treateda | 2 | 37.6 | 5 | 0 | 8.5 | 0.0 | 1.0 |
| Disease progressionb | 2 | 0 | 1.0 | ||||
ALT, alanine aminotransferase; Combination, being in >1 of the previous therapy groups in the course of the 48-week window; ETV, entecavir; HBeAg, hepatitis B e antigen; HBsAg, hepatitis B surface antigen; HBV, hepatitis B virus; IFN, interferon (including pegylated [PEG] form); Other NA, telbivudine, adefovir, emtricitabine, truvada, lamivudine; PYR, person-years; TDF, tenofovir; ULN, upper limit of normal.
Event rates per 100 PYR. Event was considered to be related to ALT flare if occurring within 48 weeks (± 12-week window) of ALT flare. Participants may contribute PYR as both treated and untreated.
Disease progression is defined as composite outcome of hepatic decompensation (variceal bleeding, ascites, hepatic encephalopathy), death, or transplant.