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All 13 Pulmonary Langerhans Cell Histiocytosis trials and their US sites
Enter your ZIP code above to sort them by how far their nearest open site is from you.
- Cobimetinib in Refractory Langerhans Cell Histiocytosis (LCH), and Other Histiocytic DisordersMost sites in California, Texas and ArizonaRecruitingPhase 2Carl Allen11US sites
9 states - Vinblastine/Prednisone Versus Single Therapy With Cytarabine for Langerhans Cell Histiocytosis (LCH)Most sites in Texas, California and OhioRecruitingPhase 3Up to age 21Baylor College of Medicine10US sites
5 states - Histiocytic Disorder Follow-up StudyOnly in AlabamaRecruitingAges 0-89University of Alabama at Birmingham1US site
- Mirdametinib in Histiocytic DisordersOnly in OhioRecruitingPhase 2Ages 2+Children's Hospital Medical Center, Cincinnati1US site
- Targeted Approach to Langerhans Cell Histiocytosis (LCH) Using MEK Inhibitor, TrametinibOnly in TexasRecruitingPhase 2Ages 1-30Cook Children's Health Care System1US site
- Adult Pulmonary Langerhans Cell Histiocytosis: a National Registry-based Prospective Cohort StudyRecruitingAges 18+Assistance Publique - Hôpitaux de ParisNo US site yet
- Biomarkers for Diagnostic, Prognostic and of Response to Treatment in Adult Langerhans Cell HistiocytosisRecruitingAges 18+Assistance Publique - Hôpitaux de ParisNo US site yet
- DETERMINE Trial Treatment Arm 07: Dabrafenib in Combination With Trametinib in Adult, Paediatric and Teenage/Young Adult Patients With BRAF V600 Mutation-Positive Cancers.RecruitingPhase 2/3Ages 1+Cancer Research UKNo US site yet
- Efficacy and Safety of Low-Dose Cytarabine Combined With Thalidomide in Adult Patients With Untreated LCHRecruitingPhase 2Ages 18-70Cancer Institute and Hospital, Chinese Academy of Medical SciencesNo US site yet
- Luvometinib in Pediatric SS-LCH With Special-site Single/Multifocal Bone LesionsRecruitingAges 0-18West China Second University HospitalNo US site yet
- Modified LCH-III Regimen With or Without Luvometinib for Multisystem Pediatric Langerhans Cell HistiocytosisRecruitingAges 0-18West China Second University HospitalNo US site yet
- Real-world Study of Darafenib or Trametinib and Clofarabine for High-risk/Recurrent/Refractory Langerhans Cell Histiocytosis in ChildrenRecruitingPhase 2Ages 0-18West China Second University HospitalNo US site yet
- To Evaluate the Efficacy, Safety, and PK Characteristics of FCN-159 in Pediatric Patients With Refractory/Recurrent LCHRecruitingPhase 2Ages 2-16Shanghai Fosun Pharmaceutical Industrial Development Co.No US site yet
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Who runs the Pulmonary Langerhans Cell Histiocytosis trials in the US, and what stage they are in
Of the 5 Pulmonary Langerhans Cell Histiocytosis trials with a US site, 1 is in Phase 3, the last stage before a company can ask the FDA for approval. Earlier Phase 1 or 2 tests of safety and dosing make up 3 of them. The last one has no drug phase, such as a study that follows people over time or tests a device or a way of giving care. Universities, hospitals, foundations and government groups run all of them, with no company leading one. The most recently listed one first appeared on ClinicalTrials.gov on September 3, 2024.
Pulmonary Langerhans Cell Histiocytosis trials in the US, state by state
All 5 Pulmonary Langerhans Cell Histiocytosis trials with a US site accept children under 18. Their open sites are in 12 states and Washington, DC, most often Texas, California and Ohio. A trial counts once in each state where it has an open site, and some trials accept both children and adults.
Show the other 3 states
US hospitals running the most Pulmonary Langerhans Cell Histiocytosis trials
Centers that run trials for a rare condition often see more people with it than most clinics do, so this list can also help you find doctors who know Pulmonary Langerhans Cell Histiocytosis.
- Cook Children's Health Care SystemFort Worth, Texas2 trials
- Texas Children's HospitalHouston, Texas2 trials
- Arkansas Children's HospitalLittle Rock, Arkansas1 trial
- Children's Hospital of Orange CountyOrange, California1 trial
- Children's Hospital of San AntonioSan Antonio, Texas1 trial
- Children's Hospital of The King's DaughtersNorfolk, Virginia1 trial
- Children's Medical Center- UTSWDallas, Texas1 trial
- Children's National HospitalWashington D.C., District of Columbia1 trial
- Cincinnati Children's Hospital Medical CenterCincinnati, Ohio1 trial
- Dana Farber Cancer Institute, Boston Children'sBoston, Massachusetts1 trial
Help getting to a Pulmonary Langerhans Cell Histiocytosis trial far from home
Ask the study team whether the trial pays back travel, parking and hotel costs, because many sponsors do. The FDA's guidance on paying research volunteers says paying back these costs does not count as pressuring someone to join.
These nonprofits also help patients reach care, and each one sets its own rules.
- Mercy Medical Angels
- Pays for gas cards, ground rides and airline tickets anywhere in the US, and it lists clinical trials as a reason to travel. Household income at or below 300% of the federal poverty guidelines, and usually a trip of 50 miles or more each way.
- Air Charity Network
- Volunteer pilots in all 50 states fly patients for free in small private planes, and members also fly people taking part in clinical trials. You must be able to walk and sit upright for the flight, show financial need and have a backup plan if weather cancels it.
- Ronald McDonald House
- Gives families a room near the hospital while a child gets care, through 394 House programs around the world. Families of a sick child, with rules set by each local chapter.
- Healthcare Hospitality Network
- Keeps a map of hospitality houses near hospitals, and most member houses charge little or nothing to patients and families. Each house sets its own rules, so check with the house near your study site.
Program details were checked on each program's website on October 24, 2026.
Questions about finding a Pulmonary Langerhans Cell Histiocytosis trial near you
Are there Pulmonary Langerhans Cell Histiocytosis clinical trials near me?
As of November 13, 2026, 13 Pulmonary Langerhans Cell Histiocytosis clinical trials are recruiting now and 1 is not yet recruiting. In the US, 5 of them have at least 1 open site, across 12 states and Washington, DC. Enter your ZIP code on this page to rank every one of them by the distance to its closest open site, with the sites shown on a map.
Which states have Pulmonary Langerhans Cell Histiocytosis clinical trial sites?
Recruiting Pulmonary Langerhans Cell Histiocytosis trials list open sites in 12 states and Washington, DC. Texas, California and Ohio have the most, and the table on this page lists every state.
Are there Pulmonary Langerhans Cell Histiocytosis trials for children near me?
All 5 Pulmonary Langerhans Cell Histiocytosis trials with a US site accept children under 18. Their open sites are in 12 states and Washington, DC, most often Texas, California and Ohio. Each trial sets its own age limits, so check the ages listed on a trial before you contact it.
Who pays for travel to a Pulmonary Langerhans Cell Histiocytosis clinical trial?
Many trial sponsors pay back travel, parking and hotel costs, so ask the study team before you rule out a far-away site. The FDA's guidance says paying back these costs does not count as pressuring someone to join. Charities such as Mercy Medical Angels and Air Charity Network can also help with rides and flights.
What if there is no Pulmonary Langerhans Cell Histiocytosis trial near me?
Some trials send staff to your home or use a local lab, so fewer visits happen at the study site. You can also sign up on this page to get an email when a Pulmonary Langerhans Cell Histiocytosis trial opens a new site or changes status.
How is the distance to a trial site measured?
Distances are straight-line miles from the center of your ZIP code to each study site's listed location, not driving distance. Your browser looks up the ZIP code's coordinates with a free map service, Zippopotam.us, and the ZIP code is never sent to or stored by Trial Friend.
Clinical trials near you for related conditions
Source: ClinicalTrials.gov, trials with status Recruiting or Not yet recruiting. Refreshed every 6 hours; counts as of November 13, 2026. Sites that ClinicalTrials.gov lists as closed or withdrawn are left out. Children means the trial's age group includes people under 18.