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Langerhans Cell Histiocytosis (LCH)NCT07371182

Luvometinib in Pediatric SS-LCH With Special-site Single/Multifocal Bone Lesions

A study testing Luvometinib in people with Langerhans Cell Histiocytosis (LCH), run by West China Second University Hospital at 11 sites in China.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

Langerhans cell histiocytosis (LCH) is the most common type of histiocytic disorder in children, affecting about 2.6 to 8.9 out of every million kids each year. It can look very different from one child to another-some cases get better on their own-but when it affects special bones (like the base of the skull… Read more about this study

Who is it for?
Ages 0 to 18 years
Conditions the study is for
Langerhans Cell Histiocytosis (LCH)
What is being tested?
Luvometinib
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
62 participants
Where
11 sitesChina
Study dates
19 Jun 2026to 31 Dec 2030
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 0 to 18 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Children aged 0-18 years, both sexes.
  • Pathologically confirmed diagnosis of LCH (CD1a+ and/or CD207+), with no prior treatment specific to LCH.
  • Patients assessed as having single-system multifocal bone involvement, single-site bone involvement at central nervous system risk sites (central nervous system risk sites include craniofacial region [excluding parietal, occipital, and frontal bones], orbital, ear, and oral regions), or single-site vertebral bone involvement with intraspinal space-occupying lesion compressing the spinal cord.
  • Signed informed consent, willing to receive treatment according to this protocol and undergo follow-up.

Who cannot join

  • Patients with other underlying diseases, such as primary immunodeficiency, heart failure, renal insufficiency, hepatitis virus infection, HIV infection, post-organ transplantation, etc.
  • Secondary malignancy.
  • QTcF > 0.47 seconds on electrocardiogram prior to enrollment.
  • Ophthalmologic screening prior to enrollment reveals retinal vein occlusion, retinal pigment epithelial detachment, or other ocular diseases.
  • Patients with LCH carrying category 3 MEK mutations, specifically the following mutation sites: L98_I103del, L98_K104del, P105_A106del, P105_I107delinsL, L101_I103delinsF, E102_I103delinsF, E102_I103del, E102_I103delinsV, E102_I103delinsVN, E102_K104delinsQ, I103_A106del.
  • Refusal to sign the informed consent form.

Trial locations and contacts

11 sites in 1 country. Contact the study team or a site near you to ask about taking part.

11 sites in 1 country

China11 sites, 11 recruiting
  • West China Second Hospital, Sichuan University

    Chengdu, Sichuan

    Ju Gao, gaoju651220@126.com

    Recruiting
  • Affiliated Hospital of Guizhou Medical University

    Guiyang, Guizhou

    Xiao Yan Yang, 86+18786635712, 469389553@qq.com

    Recruiting
  • The Second Affiliated Hospital of Anhui Medical University

    Hefei, Anhui

    Jin Hua Chu, 86+15805602655, 997222161@qq.com

    Recruiting
  • Anhui Provincial Children's Hospital

    Hefei

    Hong Jun Liiu, 86+13515657759, 13515657759@126.com

    Recruiting
  • Kunming Children's Hospital

    Kunming, Yunan

    Xin Tian, 86+13668757522, tianxin999@aliyun.com

    Recruiting
  • Jiangxi Provincial Children's Hospital

    Nanchang, Jiangxi

    Chong Jun Wu, 86+13699560860, wuchongjunmed@163.com

    Recruiting
  • The Second Affiliated Hospital of Guangxi Medical University

    Nanning, Guangxi

    Hong Ying Wei, 86+15977767103, whylhr@qq.com

    Recruiting
  • The First Affiliated Hospital of Xinjiang Medical University

    Ürümqi, Xinjiang

    GULIBAHA MAIMAITI, 86+13070423745, 156510283@qq.com

    Recruiting
  • Xi'an Children's Hospital

    Xi'an, Shaanxi

    Hua Wang, 86+18991236496, luoshake0219@163.com

    Recruiting
  • Xi'an Northwest Women's and Children's Hospital

    Xi'an, Shaanxi

    Hui Li, 86+15829655607, 15829655607@139.com

    Recruiting
  • Zunyi Medical University Affiliated Hospital, Guizhou Provincial Children's Hospital

    Zunyi, Guizhou

    Yan Chen, 86+13985261758, cyz600@163.com

    Recruiting

Other trials in China

About this study

Official title: A Multi-center, Open-label, Single-arm Study of Luvometinib Monotherapy in Pediatric Langerhans Cell Histiocytosis With Single-system Special-site Single and Multifocal Bone Involvement

Langerhans cell histiocytosis (LCH) is the most common type of histiocytic disorder in children, affecting about 2.6 to 8.9 out of every million kids each year. It can look very different from one child to another-some cases get better on their own-but when it affects special bones (like the base of the skull, temporal bone, eye socket, or spine) or when there are multiple bone lesions in one system, children often face a higher risk of long-term complications and the disease coming back.Current guidelines in China and around the world recommend treating these children with whole-body therapy, usually a chemotherapy combination of vinblastine and prednisone. However, even with longer treatment courses, about 27.6% of children with multiple bone lesions still have the disease return, and less than 70% stay free of events after 5 years. Some even develop lasting nerve system problems.

In recent years, researchers discovered that nearly all children with LCH have overactive MAPK signaling pathways in their cells. This discovery opened the door to using MAPK inhibitors as a new treatment. Studies have shown that these drugs work well and are safe for children with relapsed or hard-to-treat LCH. Even better, in some kids with single-system bone disease, the disease did not come back after stopping the drug-suggesting it might even cure certain cases.

Luvometinib (also called FCN-159), a new MAPK inhibitor developed by Fosun Pharma in Shanghai, was approved in 2025 for treating adult LCH. A Phase II clinical study showed very encouraging results: 82.8% of patients saw their disease improve or disappear, and 74.4% stayed free of progression after 12 months. The drug was well tolerated, with side effects that were mild and manageable-no serious problems forced anyone to stop treatment.Compared to traditional chemotherapy, luvometinib has fewer and milder side effects, does not weaken the immune system, and lets children continue normal daily life and school. It is a simple oral pill taken once a day, so there's no need for intravenous lines or hospital stays, making treatment much easier and improving quality of life for both the child and the family.

Being tested
Luvometinib
Medical subject headings
Histiocytosis, Langerhans-Cell

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • LuvometinibDrug

    5 mg/m² orally once daily for 1 year

Study groups in NCT07371182
Study groupRoleWhat they receive
LuvometinibExperimentalNot described
Receives: Drug: Luvometinib

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Event-free survival rate

    Measured: 2-year

Secondary outcomes (5)
  1. Objective response rate

    Measured: 1 month and 3 month

  2. Overall survival rate

    Measured: 2-year

  3. Safety of luvometinib

    Measured: 1-year

  4. Quality of life assessment in children

    Measured: Before therapy,1month,3months,6months, 12months

  5. Survey on satisfaction with drug treatment in children

    Measured: Before therapy,1month,3months,6months, 12months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 Jan 2026
  2. Study start19 Jun 2026 (estimated)
  3. Primary completion31 Dec 2030 (estimated)
  4. Study completion31 Dec 2030 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
62 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07371182
Sponsor's protocol ID
WCSH-NCP-SS-LCH-2026
Status last verified
Jan 2026
First submitted
18 Jan 2026
Last updated
27 Jan 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: IPD might be shared in the future upon approval by the ethics committee and under a data use agreement.

Publications

  • Diamond EL, Emile JF, Fujino T, Haroche J, Maron MI, Lewis AM, Rahman J, Reiner AS, Bossert D, Rosenblum M, Yabe M, Petrova-Drus K, Francis JH, Rotemberg V, Rampal RK, Yoo S, Daniyan AF, Mahajan S, Hatzoglou V, Young R, Ulaner GA, Rosler W, Hershkovitz-Rokah O, Shpilberg O, Mazor RD, Chen LYC, Singer M, Cuibus MA, Weis K, Benbarche S, Zhang P, Fox N, Castro C, Tittley S, Witkowski M, Cohen-Aubart F, Terriou L, Hanoun M, Schleinitz N, Sosa G, Hautala T, De Lassus LF, Rosen N, Abdel-Wahab O, Durham BH. RAF-independent MEK mutations drive refractory histiocytic neoplasms but respond to ERK inhibition. Cancer Cell. 2026 Jan 12;44(1):203-220.e8. doi: 10.1016/j.ccell.2025.09.014. Epub 2025 Oct 23.

    PubMed 41135521
  • Cao XX, Zhu Q, Cai Z, Ma J, Zhou H, Chang L, Zhong LP, Wu ZL, Wang X, Han P, Lin HM, Wei Z, Guo JY, Zheng Y, Li J. Luvometinib in patients with Langerhans cell histiocytosis, Erdheim-Chester disease, and other histiocytic neoplasms: a single-arm, multicentre, phase 2 study. EClinicalMedicine. 2025 Sep 17;88:103486. doi: 10.1016/j.eclinm.2025.103486. eCollection 2025 Oct.

    PubMed 41035796
  • Keam SJ. Luvometinib: First Approval. Drugs. 2025 Sep;85(9):1177-1183. doi: 10.1007/s40265-025-02217-6. Epub 2025 Aug 2.

    PubMed 40751881
  • Whitlock JA, Geoerger B, Dunkel IJ, Roughton M, Choi J, Osterloh L, Russo M, Hargrave D. Dabrafenib, alone or in combination with trametinib, in BRAF V600-mutated pediatric Langerhans cell histiocytosis. Blood Adv. 2023 Aug 8;7(15):3806-3815. doi: 10.1182/bloodadvances.2022008414.

    PubMed 36884302
  • Cournoyer E, Ferrell J, Sharp S, Ray A, Jordan M, Dandoy C, Grimley M, Roy S, Lorsbach R, Merrow AC, Nelson A, Bartlett A, Picarsic J, Kumar A. Dabrafenib and trametinib in Langerhans cell histiocytosis and other histiocytic disorders. Haematologica. 2024 Apr 1;109(4):1137-1148. doi: 10.3324/haematol.2023.283295.

    PubMed 37731389
  • Donadieu J, Larabi IA, Tardieu M, Visser J, Hutter C, Sieni E, Kabbara N, Barkaoui M, Miron J, Chalard F, Milne P, Haroche J, Cohen F, Helias-Rodzewicz Z, Simon N, Jehanne M, Kolenova A, Pagnier A, Aladjidi N, Schneider P, Plat G, Lutun A, Sonntagbauer A, Lehrnbecher T, Ferster A, Efremova V, Ahlmann M, Blanc L, Nicholson J, Lambilliote A, Boudiaf H, Lissat A, Svojgr K, Bernard F, Elitzur S, Golan M, Evseev D, Maschan M, Idbaih A, Slater O, Minkov M, Taly V, Collin M, Alvarez JC, Emile JF, Heritier S. Vemurafenib for Refractory Multisystem Langerhans Cell Histiocytosis in Children: An International Observational Study. J Clin Oncol. 2019 Nov 1;37(31):2857-2865. doi: 10.1200/JCO.19.00456. Epub 2019 Sep 12.

    PubMed 31513482
  • Su M, Gao YJ, Pan C, Chen J, Tang JY. Outcome of children with Langerhans cell histiocytosis and single-system involvement: A retrospective study at a single center in Shanghai, China. Pediatr Hematol Oncol. 2018 Oct-Nov;35(7-8):385-392. doi: 10.1080/08880018.2018.1545814. Epub 2019 Jan 29.

    PubMed 30693828
  • Morimoto A, Shioda Y, Imamura T, Kudo K, Kitoh T, Kawaguchi H, Goto H, Kosaka Y, Tsunematsu Y, Imashuku S; Japan LCH Study Group. Intensification of induction therapy and prolongation of maintenance therapy did not improve the outcome of pediatric Langerhans cell histiocytosis with single-system multifocal bone lesions: results of the Japan Langerhans Cell Histiocytosis Study Group-02 Protocol Study. Int J Hematol. 2018 Aug;108(2):192-198. doi: 10.1007/s12185-018-2444-0. Epub 2018 Mar 28.

    PubMed 29594922
  • Haupt R, Minkov M, Astigarraga I, Schafer E, Nanduri V, Jubran R, Egeler RM, Janka G, Micic D, Rodriguez-Galindo C, Van Gool S, Visser J, Weitzman S, Donadieu J; Euro Histio Network. Langerhans cell histiocytosis (LCH): guidelines for diagnosis, clinical work-up, and treatment for patients till the age of 18 years. Pediatr Blood Cancer. 2013 Feb;60(2):175-84. doi: 10.1002/pbc.24367. Epub 2012 Oct 25.

    PubMed 23109216
  • Lin H, Batajoo A, Peckham-Gregory E, Zinn D, Eckstein OS, El-Mallawany NK, Gulati N, Prudowsky ZD, Scull B, Velazquez J, Abhyankar H, Simko SJ, Vakula D, Fleischmann R, Karri V, Hicks MJ, Fisher KE, Curry CV, Roy A, Schiff D, Heym KM, Scheurer ME, Parsons DW, Merad M, Man TK, McClain KL, Picarsic J, Allen CE. BRAF V600E-positive mononuclear cells in blood at diagnosis portend treatment failure and neurodegeneration in pediatric LCH. Blood. 2025 Jul 10;146(2):206-218. doi: 10.1182/blood.2024026671.

    PubMed 40167581
  • Rodriguez-Galindo C, Allen CE. Langerhans cell histiocytosis. Blood. 2020 Apr 16;135(16):1319-1331. doi: 10.1182/blood.2019000934.

    PubMed 32106306

Questions about this trial

What is this clinical trial studying?

A study testing Luvometinib in people with Langerhans Cell Histiocytosis (LCH), run by West China Second University Hospital at 11 sites in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 27 Jan 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 11 sites in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Xue Tang (86+18280145819, txily0912@126.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Event-free survival rate (time frame: 2-year). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT07371182, which also lists 11 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Jan 2026.

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