A Natural History and Outcome Measure Discovery Study of Neuronal Ceroid Lipofuscinosis Type 5 (CLN5)
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 37
- 试验地点
- 1
- 主要终点
- Unified Batten Disease Rating Scale (UBDRS)
研究概览
简要总结
CLN5 is a form of Batten Disease, a neurodegenerative disorder in children causing psychomotor regression, seizures, blindness, loss of ambulation and premature death, and has no available treatments.
The purpose of this study is to investigate the clinical characteristics and natural clinical progression of symptoms in individuals with CLN5. This natural history study is important to better understand disease course to be able to determine clinically relevant outcome measures for use in future clinical trials.
详细描述
Neuronal Ceroid Lipofuscinosis (NCL) are comprised of a group of fatal neurodegenerative diseases caused by mutations in an enzyme or protein which results in the accumulation of toxic deposits in the eye, brain, skin, muscle and other cells.
CLN5 is a type of NCL, caused by homozygous or bi-allelic heterozygous variants in the CLN5 gene. Lack of CLN5 protein impairs the breakdown of certain proteins, leads to defective lysosomal trafficking, resulting in accumulation of toxic material and subsequent cell damage. CLN5 disease presents in childhood with neurological findings including motor clumsiness and attention disturbances, followed by progressive visual failure, psychomotor depression, epilepsy, and premature death.
No investigational product will be provided in the study.
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 at disease onset of ≤ 5 years of age.
- •Molecular genetic diagnosis confirming the presence of pathogenic or likely pathogenic variant(s) on both alleles (biallelic) of the CLN5 gene.
- •For Prospective Arm only:
- •Subject age of ≤ 9 years.
- •Hamburg motor and vision score of ≥ 1 at time of consent.
- •Subject must have a caregiver available to support the subject and attend visits with the subject.
- •Exclusion Criteria - All Subjects:
- •Has another neurologic disease or illness that may have caused cognitive decline before study entry.
- •Has a known pathogenic or clinically suspected mutation in a seizure associated genetic mutation besides CLN
- •Any prior participation in a study in which a gene therapy vector or stem cell transplantation was administered.
- •Participation in other investigational studies and non-interventional studies that have similar study assessments as this protocol while the subject is enrolled in this study is prohibited.
排除标准
- 未提供
结局指标
主要结局
Unified Batten Disease Rating Scale (UBDRS)
时间窗: 3 years
Disease-specific clinical assessment used to assess physical, seizure, behavioral and functional capabilities. For physical assessments scores range from 0 to 4 with the score of 4 being most severe.
Late Infantile Neuronal Ceroid Lipofuscinosis Rating Scale (Hamburg Scale)
时间窗: 3 years
Disease specific tool used to capture 4 domains including motor function, seizures, visual function and language. Each sub-scale can be scored from 0-3 points in which 0 represents loss of function.
次要结局
- Electroencephalography (EEG)(3 years)
- Caregiver Global Impression of Change (CaGI-C)(3 years)
- Vineland Adaptive Behavior Scale, 2nd Edition (Vineland-II)(3 years)