Xanthogranuloma

This phase 2 trial is testing the drug mirdametinib in 40 people aged 2 and older with Langerhans cell histiocytosis or similar disorders. The goal is to see if this oral medication works better and has fewer side effects than current treatments. Participants take the drug twice …

This study at Mayo Clinic will collect medical histories and blood, fluid, or tissue samples from 500 people with histiocytic disorders. Researchers will analyze these samples for molecular markers like BRAF V600E and PD-L1 to better understand the diseases. The goal is to gather…

This study follows 6,000 people with histiocytic disorders (like Langerhans cell histiocytosis) to understand long-term health problems, pain, mental health, and causes of death. Researchers compare participants to healthy controls to identify factors that lead to new health issu…