Multicentric Study on the Long-term Follow-up of Autoimmune Hepatitis in the Pediatric Patients
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 109
- 试验地点
- 1
- 主要终点
- Prevalence and incidence
研究概览
简要总结
Autoimmune hepatitis (AIH) is an immune-mediated and inflammatory liver disorder. It is currently divided into types 1 and 2, differentiated and defined by the presence of specific autoantibodies. The objectives are to describe the prevalence and incidence of type 1 and 2 autoimmune hepatitis and to analyze the clinics, biochemical and histopathological profiles at diagnosis and follow-up, initial therapy, response to therapy and long-term follow-up in three Italian centers of patients with type 1 and type 2 AIH.
详细描述
Background: Autoimmune hepatitis (AIH) is an immune-mediated and inflammatory liver disorder with typical onset in pediatric age. It is currently divided into types 1 and 2, differentiated and defined by the presence of specific autoantibodies. AIH type 1 (AIH-1) is characterised by smooth muscle and/or antinuclear autoantibodies (SMA/ANA) while anti-liver kidney microsomal (anti-LKM) or liver cytosol type 1 (anti-LC1) identified AIH type 2 (AIH-2). The conventional treatment is based on corticosteroids and azathioprine as first line therapy. The optimal duration is not clear definied, however it should be extended for at least five years due to the frequent relapses.
Aims of the study: The primary objective is to describe the prevalence and incidence of type 1 and 2 autoimmune hepatitis on a selected italian pediatric population. Secondary objectives are to analyze the clinical, biochemical and histopathological profiles at diagnosis and follow-up, type of treatment received, response to therapy and long-term follow-up.
Methods: The investigators conducted a retrospective and prospective cohort study on patients aged ≤ 18 years who the diagnosis of AIH 1 and 2 between 01/01/1989 and 31/12/2019 and were followed in three Italian pediatric centers.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Retrospective
入排标准
- 年龄范围
- — 至 18 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Age ≤ 18 years at the time of diagnosis
- •Diagnosis of autoimmune hepatitis type 1 or 2 according to the Mieli-Vergani score: a pre-treatment score> 15 or post-treatment> 17 indicates a definite diagnosis of Autoimmune Hepatitis; a pre-treatment score between 10 and 15 or post-treatment between 12 and 17 indicates a probable diagnosis.
排除标准
- •Age> 18 years at the time of diagnosis
- •Presence of other causes of liver disease
- •Presence of overlap syndrome (hepatito-cholangitis)
结局指标
主要结局
Prevalence and incidence
时间窗: from 01/01/1989 to 31/12/2019
The primary objective was to calculate the proportion of AIH type 1 and 2 patients present in the Italian pediatric population at a given time (prevalence) and the proportion of new AIH type 1 and 2 patients in the Italian pediatric population (0-18 years) in a given period of time (incidence).
次要结局
- Characteristics of AIH in pediatric patients(from 01/01/1989 to 31/12/2019)
研究者
Giuseppe Maggiore
Full Professor
University Hospital of Ferrara