Hereditary progressive mucinous histiocytosis
MONDO:0007725Hereditary progressive mucinous histiocytosis is a rare, benign, non-Langerhans cell histiocytosis characterized by childhood or adolescence onset of multiple, small, asymptomatic, slowly progressing, skin-colored to red-brown papules with predilection for the face, dorsal hands, forearms and legs, without associated mucosal or visceral involvement. Histologically, papules are well-circumscribed, unencapsulated, nodular aggregates of histiocytes with abundant mucin in the upper and middermis.
Also known as: histiocytosis, progressive mucinous
14 clinical trials for this condition and its sub-types.
Follow this condition — get notified about new trialsBroader categories
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New hope for kids with rare cancers: targeted drug selpercatinib tested in phase 2 trial
Disease control OngoingThis phase 2 trial tests the drug selpercatinib in children and young adults (ages 1 to 21) with advanced cancers that have a specific genetic change called a RET alteration. The goal is to see if the drug can shrink tumors or stop them from growing. Only one participant has been…
Phase: PHASE2 • Sponsor: National Cancer Institute (NCI) • Aim: Disease control
Last updated Jun 27, 2026 14:00 UTC
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New hope for kids with rare cancers: targeted drug larotrectinib tested in small trial
Disease control OngoingThis phase 2 trial is testing the drug larotrectinib in children and young adults (ages 1 to 21) with advanced solid tumors, non-Hodgkin lymphoma, or histiocytic disorders that have a specific genetic change called an NTRK fusion. The cancers have either come back after treatment…
Phase: PHASE2 • Sponsor: National Cancer Institute (NCI) • Aim: Disease control
Last updated Jun 27, 2026 14:00 UTC
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Rare disease study probes hidden brain effects
Knowledge-focused OngoingThis study looks at how histiocytosis—a group of rare disorders—may affect memory, thinking, and brain structure. Researchers will test 13 adults with these conditions using thinking tasks and MRI scans. The goal is to better understand brain changes, not to provide treatment.…
Sponsor: Memorial Sloan Kettering Cancer Center • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:31 UTC