Juvenile xanthogranuloma
MONDO:0015534A benign histiocytic tumor that occurs during childhood; it is distinct from Langerhans cell histiocytosis. It is characterized by the presence of lipid-laden, foamy histiocytes and Touton-type giant cells in the dermis. The lesions usually develop during infancy. They consist of cutaneous papules and nodules (most often in the head and neck). It is sometimes associated with deep soft tissues nodules.
Also known as: JXG, juvenile xanthogranuloma
10 clinical trials for this condition and its sub-types.
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New pill shows promise for rare childhood diseases
Disease control Recruiting nowThis 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 …
Phase: PHASE2 • Sponsor: Children's Hospital Medical Center, Cincinnati • Aim: Disease control
Last updated Jun 26, 2026 18:37 UTC
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Targeted drug cobimetinib tested for rare immune cell cancers
Disease control Recruiting nowThis phase 2 study tests the drug cobimetinib in children and adults with Langerhans cell histiocytosis and related disorders that have come back or not responded to standard treatment. Cobimetinib blocks a growth signal that goes haywire in these diseases. The study will enroll …
Phase: PHASE2 • Sponsor: Carl Allen • Aim: Disease control
Last updated Jun 26, 2026 17:51 UTC
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500 patients needed to unlock secrets of rare histiocytic disorders
Knowledge-focused Recruiting nowThis 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…
Sponsor: Mayo Clinic • Aim: Knowledge-focused
Last updated Aug 06, 2026 00:00 UTC
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Caregiver survey aims to uncover hidden struggles in rare disease
Knowledge-focused Recruiting nowThis study surveys 250 informal caregivers (family or friends) of people with Erdheim-Chester disease and similar conditions. Participants complete online questionnaires about their supportive care needs, mood, and sense of purpose. The goal is to identify what caregivers need mo…
Sponsor: Memorial Sloan Kettering Cancer Center • Aim: Knowledge-focused
Last updated Jul 04, 2026 00:00 UTC