Mitochondrial DNA depletion syndrome 4b

This study is testing a handheld device called mScan that uses a tiny, painless electrical current to measure muscle health. Researchers want to see if it can give similar results to an MRI, but faster and more conveniently. The study involves 150 adults with and without muscle d…

This study tests whether cycling while using a virtual park app can slow the loss of motor function in children and teens with neuromuscular diseases like muscular dystrophy. Twenty-two participants will first receive standard care for 3 months, then use the virtual park bike 3 t…

This study tests a device called Walkasins, worn on the lower legs, that vibrates to give sensory feedback about foot pressure. The goal is to see if using it daily for six months improves balance and walking in 200 adults aged 55+ with peripheral neuropathy. Participants will do…

This Phase 2 trial tests whether KL1333 can reduce fatigue and improve leg strength in adults with primary mitochondrial disease, a genetic condition that affects energy production. About 180 participants will receive either KL1333 or a placebo twice daily for 48 weeks. The study…

This study at the National Institutes of Health looks at how infections can worsen symptoms in people with mitochondrial disease, a group of disorders that affect energy production in cells. Researchers will evaluate participants' immune systems through blood tests, physical exam…

This study aims to learn more about rare inherited disorders that affect the brain, spinal cord, muscles, and nerves. Researchers will collect medical history, perform exams, and run genetic tests on up to 3,500 participants. No new treatments are tested; the goal is to better un…

This study aims to learn more about rare disorders that affect how the body processes chemicals called pyrimidines and purines. These disorders can cause problems in the brain, blood, kidneys, and immune system, ranging from mild to life-threatening. Researchers will compare test…

This study creates a global registry for people with mitochondrial disorders—rare diseases that affect energy production in cells. By collecting health data from 6,000 participants worldwide, researchers aim to understand how these diseases progress and identify the best ways to …

This study is collecting information from 4,000 adults with peripheral neuropathy (nerve damage) to better understand the condition. Researchers will combine standard tests with nerve ultrasound to see if it helps diagnose and track the disease. No new treatments are being tested…

This study is looking at whether a molecule in the blood called miR-1 can help doctors understand how muscle diseases like Duchenne muscular dystrophy and myotonic dystrophy are progressing. Researchers will compare miR-1 levels in 104 people, including patients with different mu…

This study is creating a large registry and tissue bank for people with mitochondrial disorders. Researchers will collect medical information and samples from up to 1,000 participants, including those diagnosed with or suspected to have a mitochondrial disease. The goal is to gat…

This study aims to find better ways to measure fatigue and walking problems in people with neuromuscular diseases like muscular dystrophy and spinal muscular atrophy. Researchers will use a wearable sensor to track physical activity for one week in daily life and during a walking…

This study is collecting nerve samples and biofluids from 400 people with ALS or peripheral neuropathies to find biological markers for early diagnosis and disease tracking. By analyzing individual cells, researchers hope to identify molecular changes that happen before symptoms …

This study collects blood and skin samples from 100 people with primary mitochondrial diseases and healthy volunteers aged 3 to 85. Researchers will study how different mitochondrial mutations affect cell function and look for biomarkers. The samples will also help test a new the…