NCT04734626Enrolling By Invitation不适用
Magnetic Resonance Imaging (MRI) Muscle Phenotyping in Mitochondrial Disease
适应症
试验速览
- 阶段
- 不适用
- 状态
- Enrolling By Invitation
- 入组人数
- 230
- 试验地点
- 1
- 主要终点
- Post-exercise CrCEST recovery time (seconds)
研究概览
简要总结
The purpose of this study is to perform a "muscle phenotyping" magnetic resonance imaging (MRI) assessment in patients receiving clinical care at the Children's Hospital of Philadelphia (CHOP) for mitochondrial disease that is either suspected (based on clinical presentation) or has a definite genetic diagnosis. The MRI assessment quantifies skeletal muscle oxidative phosphorylation (OXPHOS) capacity.
Investigators hope that this study will contribute to our current knowledge of mitochondrial diseases and this study will help create a new diagnostic tool for use in both clinical care and in clinical trials.
详细描述
This research study visit will occur on the same day as the participants clinically scheduled MRI. The clinically indicated and study-specific scanning time will not exceed 120 minutes.
During the study visits:
- A study team member will review inclusion and exclusion criteria with the participant
- A study team member will review medical history review with the participant
- A safety assessment will occur prior to study procedures
- Study MRI scan
- During which the participant will use an MRI-safe machine to stimulate exercise, similar to pressing a gas pedal
If eligible participants return to CHOP for future clinical imaging, we will also request a study-specific MRI assessment.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Control
- 时间视角
- Prospective
入排标准
- 年龄范围
- 7 Years 至 75 Years（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •(Mitochondrial Disease Patients):
- •Males and females, between the ages of 7 and 75, inclusive
- •Suspected (based on clinical presentation) or definite genetic mitochondrial disease diagnosis (i.e., genetic mutations in the constituents of the mitochondrial respiratory chain and/or genetic mutations that are likely to affect mitochondrial function)
- •Clinically eligible for an MRI of the lower leg. We are conducting clinical leg MRI scans of patients with definite mitochondrial disease for indications that include muscle weakness and muscle fatigue.
- •Able to perform sub-maximal ankle dorsiflexion leg exercise during the MRI study
- •Inclusion Criteria (Healthy Controls):
- •Males and females, between the ages of 7 and 75 years, inclusive
- •Able to perform sub-maximal ankle dorsiflexion leg exercise during the MRI study
- •Inclusion Criteria (Evaluable Healthy Controls and Cases for Data Analysis):
- •To note, we will merge coded datasets from Institutional Review Board (IRB) #15-012445, IRB #16-013364, and IRB #08-006177 with data from this study as part of our data analysis plan.
- •Complete and evaluable healthy control and cases from IRB #15-012445, IRB #16-013364, and IRB #08-006177
排除标准
- •(Mitochondrial Disease Patients and Healthy Controls):
- •In the investigator's opinion, inability to fully comply with research procedures
- •Active alcohol and/or substance abuse, including tobacco-use
- •A pacemaker; any metal-based medical or non-medical devices/implants; any non-removable metal-based object (e.g., body piercings, jewelry, etc.) that cannot be cleared through radiologic evaluation
- •Any history of intraocular injury or fragment in or around the orbit that cannot be cleared through radiologic evaluation
- •Any history of bullet, shrapnel, or stabbing wounds that cannot be cleared through radiologic evaluation
- •Past or current employment involving (or exposure to) a metal grinder (e.g., at a construction worksite)
- •Claustrophobia or any known medical conditions which can be exacerbated by stress, anxiety, or panic attacks triggered by enclosed spaces
- •Any potentially interfering clinical MRI contrast agents, as reviewed with the radiology team
- •At the discretion of the principal investigator (PI), any medical condition that will interfere with or prevent the safe completion of the study
- •Any female participant with childbearing potential who is knowingly pregnant or suspects that she is pregnant will be removed from the study. (Although there are no known risks of MRI on pregnant females or fetuses, there is a possibility of yet undiscovered pregnancy-related risks. Since there is no direct benefit from participating in this protocol for pregnant females, they will be excluded to ensure their long-term safety and that of their unborn fetus.)
- •To note, for this protocol, participants are instructed to lie still in the MRI scanner; there is no contrast or sedation. Participants will be asked to perform a brief (< 2 minute) foot-pedal exercise. Investigators will ensure that total MRI scanning time (i.e., clinically indicated and study-specific scanning) does not exceed 120 minutes within a single day. Participants who do not possess the cognitive and/or physical abilities to perform these procedures will not be included.
- •Exclusion Criteria (Healthy Controls)
- •Any history or genetic confirmation of mitochondrial disease
结局指标
主要结局
Post-exercise CrCEST recovery time (seconds)
时间窗: During the MRI
The time it takes after the exercise occurs to recover CrCEST
次要结局
- Resting CrCEST(During the MRI)
- Fat-fraction(During the MRI)
- Muscle Lipid Content(During the MRI)
研究者
研究点 (1)
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