Effects of Immunomodulation Therapy on Anti-rhGAA Immune Response in Subjects With Pompe Disease Receiving rhGAA Enzyme Replacement Therapy
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 11
- 试验地点
- 1
- 主要终点
- Anti-rh GAA antibody titers
研究概览
简要总结
Hypothesis: the effectiveness of treatment of Pompe Disease with rhGAA enzyme replacement therapy (ERT) is limited at least in part because patients develop antibodies against the provided rhGAA enzyme. Treatment with immunomodulatory drugs may dampen or eliminate the anti-rhGAA immune response in patients receiving ERT, thereby allowing for greater ERT efficacy. Studying the immune response to rhGAA may provide valuable insight into the role of the immune system in the effectiveness of ERT for Pompe Disease.
详细描述
The purpose of this research study is to determine the effect(s) of medications that alter the immune system on anti-rhGAA immune response in Pompe patients receiving rhGAA enzyme replacement therapy (ERT). The investigators would also like to determine whether treating Pompe Disease with medications that affect the immune system has any effects on the overall health or disease progression of Pompe.
Subjects will be patients between the ages of 0 months and 65 years who have been diagnosed with Pompe Disease, confirmed by mutational analysis and/or GAA enzyme activity assay.
Subjects will be eligible regardless of whether they have begun enzyme replacement therapy prior to enrollment. All Subjects will receive enzyme replacement therapy as standard of care during the course of the Study, although they may not have begun ERT treatment at the time of enrollment. In addition to ERT, subjects may receive an immunomodulatory regimen as part of their standard of care; this may include rituximab, sirolimus, methotrexate, IVIg or other immunomodulatory agents such as pharmacological chaperone N-butyldeoxynojirimycin (NB-DNJ), alone or in combination, at the discretion of their caregiver(s).
研究设计
- 研究类型
- Observational
- 观察模型
- Case Only
- 时间视角
- Prospective
入排标准
- 年龄范围
- — 至 65 Years（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •patients between the ages of 0 months and 65 years
- •diagnosed with early-onset Pompe Disease, confirmed by mutational analysis and/or GAA enzyme assay
- •eligible regardless of whether they have begun enzyme replacement therapy prior to enrollment
- •all subjects will receive ERT as standard of care during the course of the study, although they may not have begun ERT treatment at the time of enrollment
- •subjects may receive an immunomodulatory regimen as part of their standard of care; this may include rituximab, sirolimus, methotrexate, Gamunex, Hizentra, Zavesca or other immunomodulatory agents, alone or in combination, at the discretion of their caregiver(s)
排除标准
- •subject is unable to meet the study requirements
- •subjects medical condition contraindicates participation or Study Investigators feel that participation is otherwise not in the subject's best interest
- •subject does not receive ERT treatment
研究组 & 干预措施
Age 0 months to 65 years
Confirmed diagnosis of Pompe Disease, and clinically prescribed immune modulation regimen with agents such as rituximab, sirolimus, methotrexate, IVIg or other immunomodulatory agents such as pharmacological chaperone Miglustat, N-butyldeoxynojirimycin (NB-DNJ), alone or in combination, at the discretion of their primary/specialist caregiver.
干预措施: Rituximab (Drug)
Age 0 months to 65 years
Confirmed diagnosis of Pompe Disease, and clinically prescribed immune modulation regimen with agents such as rituximab, sirolimus, methotrexate, IVIg or other immunomodulatory agents such as pharmacological chaperone Miglustat, N-butyldeoxynojirimycin (NB-DNJ), alone or in combination, at the discretion of their primary/specialist caregiver.
干预措施: Miglustat (Drug)
结局指标
主要结局
Anti-rh GAA antibody titers
时间窗: 52 weeks
Antibody titer for anti-rh-GAA will be evaluated at baseline and every 4-8 weeks for 52 weeks of participation in the primary study. For subjects who continue participation in the extension study (\>52 weeks - 5 years), anti-rh-GAA antibody titers will be evaluated every 12 - 24 weeks.
次要结局
- B-lymphocyte antigen (CD20) level(52 weeks)