A Longitudinal, Exploratory, Natural History Study to Further Characterize and Describe the Signs and Symptoms of Patients With Organic Acidemias
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 97
- 试验地点
- 17
- 主要终点
- Frequency of disease related clinical events in enrolled participants (mut0 and mut- MMA patients)
研究概览
简要总结
Longitudinal, exploratory, natural history study of patients with MMA due to mut deficiency and PA to characterize the changes in blood disease biomarkers over time and the frequency and severity of clinical events related to their disease.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •MMA Only • Patient has a confirmed diagnosis of isolated MMA due to MUT deficiency (mut0 or mut-) based on the following criteria:
- •Elevated plasma/serum/DBS or urine methylmalonic acid levels
- •Presence of normal serum/plasma vitamin B12 and plasma homocysteine levels
- •Confirmed by molecular genetic testing. Genetic testing can be performed after the administration of informed consent if not available, however, molecular genetic results must be confirmed before the second study visit
- •Patient has a confirmed diagnosis of isolated PA based on the following criteria:
- •Elevated plasma/DBS/urine 2-MC and/or 3-HP
- •Elevated plasma/serum/DBS propionylcarnitine (C3)
- •Confirmed by genetic testing for mutations of the PCCA or PCCB genes. Genetic testing can be performed after the administration of informed consent if not available, however, molecular genetic results must be confirmed before the second study visit
- •Both MMA and PA
- •Patient (and/or legally authorized representative as applicable to local regulations) is willing and able to comply with study-related assessments and activities
- •Patient or legally authorized representative is willing and able to provide informed consent and/or assent as mandated by local regulation
排除标准
- •Estimated GFR <30 mL/min/1.73m2 based on age appropriate equations or patients who undergo chronic dialysis
- •The patient is pregnant or lactating at the time of screening. (Note: Patients who become pregnant during the study may remain in the study) MMA Only
- •Patients diagnosed with isolated MMA cblA, cblB, or cblD enzymatic subtypes or methylmalonyl-CoA epimerase deficiency or combined MMA with homocystinuria PA Only
- •Patient has a confirmed diagnosis of multiple carboxylase deficiency
结局指标
主要结局
Frequency of disease related clinical events in enrolled participants (mut0 and mut- MMA patients)
时间窗: Baseline through 12 months
Changes in plasma 2-MC levels (PA only)
时间窗: Baseline through 12 months
Change in plasma methylmalonic acid levels (MMA only)
时间窗: Baseline through 12 months
Changes in plasma 3-HP levels (PA only)
时间窗: Baseline through 12 months
Frequency of disease related clinical events in enrolled participants (PA patients)
时间窗: Baseline through 12 months
次要结局
未报告次要终点
