ALS Reversals: Genetic Analyses (St.A.R. Protocol 2) RDCRN CReATe Protocol #8007
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 26
- 试验地点
- 1
- 主要终点
- genetic comparison
研究概览
简要总结
The purpose of this study is to try to understand why reversals of amyotrophic lateral sclerosis (ALS) and primary muscular atrophy (PMA) take place. The study will enroll patients with ALS or PMA reversals to give saliva samples in order to determine if the ALS or PMA reversal is because of certain changes in the genetic code.
详细描述
Amyotrophic Lateral Sclerosis (ALS) is a devastating motor neuron disease that typically causes rapidly progressive muscle weakness, disability and premature death. In spite of a large number of attempted ALS trials, there are no significant disease-modifying therapies for this condition to-date.
There exists a small group of patients who meet diagnostic criteria for ALS or progressive muscular atrophy (PMA), progress for a period of time, and then significantly improve. Some of these "ALS reversals" even make a complete recovery back to normal neurological function. The investigator has independently verified 34 of these cases so far through review of medical records and peer-reviewed literature. These patients are different in their demographics and disease characteristics as compared to patients with more typically progressive ALS. One possible explanation for these cases is that these patients are genetically different than most patients with ALS and that these differences confer a form of disease "resistance". Study of these selected reversal patients may yield valuable clues to endogenous mechanisms of ALS resistance. The concept of genetic conferred ability to resist a disease is not novel. A group of patients who could unexpectedly "control" HIV due to a mutant allele has led to an improved understanding of HIV pathophysiology and a new treatment
This is a pilot case-control study attempting to discover genetic correlates to ALS reversals. The investigator will collect demographics, disease characteristics, pedigree information and saliva samples from ALS reversals. Whole genome DNA will be extracted and sequenced from these saliva samples. The genomes of ALS reversals will then be compared with whole genome sequencing previously completed from a biorepository of de-identified samples of more typically progressive patients with ALS. The study will not save any saliva samples collected as a part of this new protocol for future research.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Control
- 时间视角
- Other
入排标准
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Prior participation in Documentation of Known ALS Reversals (Duke IRB Pro00076395)
- •Confirmation of ALS or PMA (primary muscular atrophy) diagnosis through medical record review (previously documented in Documentation of Known ALS Reversals protocol)
- •Sustained, robust improvement on at least one objective ALS outcomes measure (ex. ALSFRS-R, FVC, strength testing, EMG) (previously documented in Documentation of Known ALS Reversals protocol)
- •Able to understand English
排除标准
- •History of cognitive impairment severe enough to preclude informed consent, reported by patient on direct questioning or as suspected by research personnel from Documentation of Known ALS Reversals (Duke IRB Pro00076395) study data
- •Prior participation in the Phenotype Genotype and Biomarkers in ALS and Related Disorders (RDCRN #8001) protocol
结局指标
主要结局
genetic comparison
时间窗: 1 day
comparison of genes of participants with ALS reversals to genes of more typically progressive patients with ALS
次要结局
- factors associated with genes(1 day)