Disorder of phospholipids, sphingolipids and fatty acids biosynthesis

This Phase 3 study tests whether the drug mavorixafor can reduce serious infections and increase neutrophil levels in people with chronic neutropenia—a condition where the body doesn't make enough infection-fighting white blood cells. About 176 participants will receive either ma…

This study tests a daily injection called elamipretide in 48 people with genetically confirmed Barth syndrome, a rare condition that causes muscle weakness and heart problems. Participants will receive either the drug or a placebo for 72 weeks. The main goal is to see if the drug…

This early-phase trial is testing a new drug called DCSZ11 alongside standard chemotherapy or immunotherapy in 9 people with advanced or metastatic solid tumors, including head and neck cancer. The main goal is to see if the combination is safe and whether it can shrink tumors. B…

This study compares two common conservative treatments for De Quervain's tenosynovitis, a painful thumb tendon condition: a static hand-wrist splint versus home-based exercise therapy. Forty adults with acute or subacute pain will be tracked for changes in pain, wrist function, a…

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 follows people with SPLIS, a rare inherited metabolic condition, to map its natural history—how the disease unfolds over time. Researchers will track growth, organ function, quality of life, and survival in about 28 participants. The goal is to understand the full rang…

This study is creating an international registry for people with neutral lipid storage disease (NLSD), a rare condition where fat builds up in cells, especially affecting the heart. Researchers will collect medical history, track disease progression, and look for factors that inf…

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 collects medical and genetic information from people with SPLIS, a rare condition caused by a faulty enzyme. Researchers will track survival and when kidney problems start. No treatments are given, but the registry may help future research.

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…

This study is looking at 50 adults with a rare genetic nerve disorder called RFC1-ataxia or CANVAS, which causes problems with balance, coordination, and sensation. Researchers will take blood samples and skin biopsies over 12 months to measure markers of cell stress and damage. …