Inborn disorder of lysosomal amino acid transport

Cystinosis is a rare inherited disease that causes kidney failure and poor growth due to cystine buildup in cells. This study follows 330 patients taking cysteamine, a drug that lowers cystine levels, to track long-term effects, detect new complications, and support genetic resea…

This study tests a gene therapy called DFT383 in 30 children aged 2 to 5 with nephropathic cystinosis, a rare disease that damages kidneys and other organs. The treatment aims to fix the genetic problem so children may no longer need daily cysteamine medication. Researchers will …

This study looks at how energy production inside cells (mitochondria) works in people with cystinosis, a rare disease that causes cystine buildup and early aging. Researchers will measure cell energy activity in 25 patients and compare it to healthy people. The goal is to underst…

This pilot study will test a tablet-based tool called TICOALA that checks language comprehension and learning in children aged 3 to 7 who visit a child psychiatry service in Paris. Researchers want to see if children, parents, and clinicians find the tool acceptable and if a larg…

This European study will follow 400 people with cystinosis, a rare genetic disease that causes cystine buildup in cells. Researchers will collect medical and quality-of-life data to understand how the disease progresses and how care can be improved. The study does not test any ne…

This study collects medical information and biological samples (like blood or tissue) from up to 12,000 people with leukodystrophies—rare disorders that damage the brain's white matter. Researchers will use this data to find new genetic causes, develop biomarkers for future trial…