A Multicenter Real-world Observational Study of the Prevalence, Diagnostic Pathways, and Clinical Characteristics of Lysosomal Acid Lipase Deficiency in Pediatric and Adolescent Risk Groups in the Russian Federation (HELIOS)
试验速览
- 阶段
- 不适用
- 状态
- 终止
- 发起方
- AstraZeneca
- 入组人数
- 25
- 试验地点
- 2
- 主要终点
- To estimate the proportion of patients with genetically confirmed LAL-D (defined by decreased LAL activity plus presence of biallelic pathogenic LIPA variants) among 12-month-to-18-year-old patients identified by predefined red flags.
研究概览
简要总结
A multicenter real-world observational study of the prevalence, diagnostic pathways, and clinical characteristics of lysosomal acid lipase deficiency in pediatric and adolescent risk groups in the Russian Federation (HELIOS)
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Other
入排标准
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Age 12 months to 18 years (infantile form is out of scope for the analytical component);
- •Patients not previously evaluated for LAL-D (test-naïve);
- •Presence of at least one (1) of the following major criteria:
- •Unexplained hepatomegaly and/or splenomegaly persisting ≥3 months;
- •Persistent hypertransaminasemia: ALT or AST ≥ 1.5× upper limit of normal (ULN) after exclusion of common metabolic/infectious causes;
- •Atherogenic dyslipidemia: elevated total cholesterol (TC), elevated LDL-C and/or reduced HDL-C (LDL-C >95th percentile for age and sex or HDL-C <5th percentile); triglycerides not markedly elevated.
- •Presence of at least two (2) of the following minor criteria:
- •Chronic diarrhea or intermittent unstable bowel movements;
- •Abdominal pain and/or bloating;
- •Loss of appetite;
- •Nausea, vomiting;
- •Belching, heartburn;
- •Weight loss, growth deceleration (height/weight lag behind peers);
- •Weakness, easy fatigability;
- •Recurrent aphthous stomatitis (oral mucosal ulcers);
- •Splenomegaly (if not counted as a major criterion);
- •Anemia and/or thrombocytopenia;
- •Evidence of steatosis/fibrosis by ultrasound/elastography/ liver examination by MRI;
- •Suboptimal response to lipid-lowering therapy: after ≥3 months of optimized therapy (maximally tolerated statin ± ezetimibe with documented adherence), LDL-C reduction <50% from baseline OR on-treatment LDL-C remains above guideline targets (e.g., ≥3.4 mmol/L without very high risk or ≥2.6 mmol/L in very-high-risk settings), despite therapy [12].
- •Family history of FH-like dyslipidemia without typical FH genetic markers (if available).
- •Provision of signed and dated written informed consent by parent(s)/legal guardian(s) (and the child, where applicable).
排除标准
- •Confirmed alternative etiology fully explaining liver disease/dyslipidemia (e.g., hepatitis A/B/C, autoimmune hepatitis by diagnostic criteria) without grounds to suspect LAL-D;
- •Wolman disease;
- •Long-term use of systemic corticosteroids which is defined as oral or parenteral continuous administration during ≥14 days in the last 6 months prior to the inclusion.
结局指标
主要结局
To estimate the proportion of patients with genetically confirmed LAL-D (defined by decreased LAL activity plus presence of biallelic pathogenic LIPA variants) among 12-month-to-18-year-old patients identified by predefined red flags.
时间窗: Day 60 (Visit 2)
To achieve the primary objectives of the study the following baseline clinical and demographic characteristics of patients will be collected or evaluated. Proportion (%), with 95% confidence interval, of patients with genetically confirmed LAL-D among screened participants (confirmation by LIPA sequencing following detection of decreased LAL activity in DBS)
次要结局
未报告次要终点
