Hepatitis B
Conditions
Brief summary
The purpose of this study is to follow patients treated in entecavir Phase III and rollover studies for safety experience and Hepatitis B virus (HBV)-related complications.
Detailed description
Observational Model: Only subjects who participated in Entecavir Phase III studies AI463022, AI463023, AI463026, and AI463027. Number of groups/cohorts: 1 (All subjects were observed in the same manner).
Interventions
None listed
Sponsors
Study design
Eligibility
Inclusion criteria
* All subjects who participated in Entecavir Phase III studies AI463022, AI463023, AI463026, and AI463027.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| The proportion of subjects who have newly reported hepatitis B-related complications during AI463049 (reported by Phase III treatment groups) | data is collected every 6 months | defined as follows: * Hepatic cirrhosis (Diagnosis requires biopsy or imaging study) * Esophageal Varices (Grade 1 or higher on endoscopy or barium swallow) * Bleeding esophageal varices * Ascites (Present on physical exam or imaging study) * Hepatic encephalopathy (≥ Stage 2) * Hepatocellular carcinoma * Spontaneous bacterial peritonitis * Gastric varices * Bleeding gastric varices * Hepatorenal syndrome |
Secondary
| Measure | Time frame |
|---|---|
| To determine the proportion of subjects who have Alanine transaminase (ALT) ≤ 1.0 x Upper limit of normal (ULN) over the AI463049 follow-up period by the phase III treatment group | Every 6 months |
| To determine the proportion of subjects who were Hepatitis B e antigen (HBeAg) positive at the beginning of Phase III trials who have HBeAg loss or HBe seroconversion over the AI463049 follow-up period by the phase III treatment group | Every 6 months |
| To determine the number of anti-HBV medications following enrollment in AI463049 by the phase III treatment group | Every 6 months |
| To determine the proportion of subjects who have a HBV Deoxyribonucleic acid (DNA) by Polymerase chain reaction (PCR) of < 300 copies/mL over the AI463049 follow-up period by the phase III treatment group | Every 6 months |
| To determine HBV-related mortality by the phase III treatment group | Every 6 months |
| To determine Non-hepatic malignancies by the phase III treatment group | Every 6 months |
| To determine all cause mortality by the phase III treatment group | Every 6 months |