LCH-IV, International Collaborative Treatment Protocol for Children and Adolescents With Langerhans Cell Histiocytosis
3 other identifiers
interventional
1,400
1 country
42
Brief Summary
The LCH-IV is an international, multicenter, prospective clinical study for pediatric Langerhans Cell Histiocytosis LCH (age \< 18 years).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started Nov 2016
Longer than P75 for phase_2
42 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 7, 2014
CompletedFirst Posted
Study publicly available on registry
July 31, 2014
CompletedStudy Start
First participant enrolled
November 2, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
July 1, 2026
April 9, 2026
April 1, 2026
9.7 years
July 7, 2014
April 6, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (6)
Percentage of Patients with Reactivation Free Survival
Stratum I, II, VI
12 Months
Response Rate of Second Cycle
Stratum III
9 weeks
Overall and disease free survival at 1 and 3 years after reduced intensity conditioning hematopoietic stem cell transplantation (RIC-HSCT)
Stratum IV
3 Years
The cumulative incidence of radiological and clinical neurodegeneration in patients with isolated tumorous CNS-LCH, DI, anterior pituitary dysfunction, and those with CNS-risk lesions
Stratum V
2 Years
The time interval and cumulative incidence of progression of radiological neurodegeneration to clinically manifested ND-CNS-LCH
Stratum V
2 Years
Cumulative incidence of specific Permanent Consequences e.g. diabetes insipidus (DI), growth hormone deficiency (GHD), neuropsychological impairment, etc.
From all treatment stratum via long-term follow up in Stratum VII
2 Years
Secondary Outcomes (22)
Overall Survival
2 Years
Number of Participants with Serious and Non-Serious Adverse Events
2 Years
Incidence of Permanent Consequences
2 Years
Cumulative incidence of reactivations in risk organs
2 Years
Time to complete disease resolution
2 Years
- +17 more secondary outcomes
Study Arms (6)
Stratum I
EXPERIMENTALStratum I The combination of Prednisone and vinblastine is the standard first-line combination for patients needing systemic therapy (Stratum I). Patients with MS-LCH and involvement of risk organs, who do not respond to 6-12 weeks of standard therapy, will be immediately switched to alternative treatment approaches (Stratum III or Stratum IV). Further therapy prolongation (12 vs. 24 months) and intensification (± mercaptopurine) will further reduce the reactivation rate and the permanent consequences.
Stratum II
EXPERIMENTALA uniform "intensive" 24-week course consisting of prednisolone, vincristine and cytosine-arabinoside will be introduced in Stratum II for eligible patients. It will be followed by a continuation therapy to total treatment duration of 24 months. Participants who after SL-IT (week 24) have a response (NAD or AD better) are eligible for randomization between the continuation arms "INDOMETHACIN" and "6-MP/MTX" (mercaptopurine and Methotrexate).
Stratum III
EXPERIMENTALSalvage treatment for risk LCH To assess the efficacy of the combination 2-CdA/Ara-C (Cytosine Arabinoside and 2-chlorodeoxyadenosine) in MS-LCH (patients with risk organ involvement, who fail to respond to front-line (Stratum I) therapy. The initial therapy consists of 2 courses of 2-CdA/Ara-C. Continuation of outlined treatment to be assessed at assigned intervals in each stratum.
Stratum IV
EXPERIMENTALTo determine the overall and disease free survival at 1 and 3 years after reduced intensity conditioning hematopoietic stem cell transplantation (RIC-HSCT). Salvage treatment option for MS-LCH patients with risk organ involvement, who fail to respond to front-line therapy (Stratum I) OR to the salvage 2- CdA/Ara-C regimen (Stratum III).
Stratum V
EXPERIMENTALStratum V Monitoring and Treatment of isolated tumorous and neurodegenerative CNS-LCH \- Special regimens will be offered to patients with isolated tumorous CNS-LCH (repeated 2-CdA courses) and to patients with clinically manifested ND-CNS-LCH (+/- extracranial LCH manifestations). For the last group monotherapy with Ara-C courses or (Intravenous immunoglobulin)IVIG will be offered depending on physician's choice.
Stratum VI
EXPERIMENTALNatural history and management of "other" SS-LCH not eligible for stratum I group 2. * Treatment Options- Management (mostly "wait \& see" and topical treatment) is left to the discretion of the treating physician. All treatments and disease responses must be reported in the database. In the case of uncertainties please contact your National Coordinator. * Patients being followed on Stratum VI who have progression of disease to MSLCH, multifocal bone disease or CNS-risk bone lesions should be enrolled on Stratum I therapy. * Patients being followed on Stratum VI who develop isolated tumorous or neurodegenerative CNS-LCH should be enrolled on Stratum V.
Interventions
Stratum I
Indomethacin fixed dose given daily orally in two divided doses with gastric protection for total treatment duration of 24 months.
Eligibility Criteria
You may qualify if:
- Stratum I
- Patients must be less than 18 years of age at the time of diagnosis.
- Patients must have histological verification of the diagnosis of Langerhans cell histiocytosis according to the criteria described in Section 6.1
- Signed informed consent form
- Stratum II
- Patients of Stratum I who have:
- Progressive disease (AD worse) in non-risk organs after 6 weeks (Initial Course
- AD intermediate or worse in non-risk organs or AD better in risk organs after 12 weeks (Initial Course 2)
- Disease progression (AD worse) in non-risk organs at any time during continuation treatment
- Active disease at the end of Stratum I treatment
- Disease reactivation in non-risk organs at any time after completion of Stratum I treatment
- Stratum III
- Patients from Stratum I who fulfill the following criteria:
- AD worse in risk organs after week 6 (after Initial Course 1), or AD worse or AD intermediate in risk organs after week 12 (after Initial Course 2).
- Presence of unequivocally severe organ dysfunction at the above mentioned evaluation points (hematological dysfunction, liver dysfunction, or both of them) as
- +17 more criteria
You may not qualify if:
- Stratum I
- Pregnancy (patients of child-bearing age must be appropriately tested before chemotherapy)
- LCH-related permanent consequences (e.g. vertebra plana, sclerosing cholangitis, lung fibrosis, etc.) in the absence of active disease
- Prior systemic therapy
- Stratum II
- Patients with progressive disease in risk organs
- Permanent consequences (e.g. sclerosing cholangitis, lung fibrosis, etc.) without evidence of active LCH in the same organ or in any other locations
- No written consent of the patient or his/her parents or legal guardian
- Stratum III
- The presence of any of the following criteria will exclude the patient from the study:
- Isolated sclerosing cholangitis without evidence of active hepatic LCH as the only evidence of risk organ involvement.
- Inadequate renal function as defined by serum creatinine \> 3x normal for age
- Stratum IV
- Pulmonary failure (requiring mechanical ventilation) not due to active LCH.
- Isolated liver sclerosis or pulmonary fibrosis, without active LCH.
- +7 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- North American Consortium for Histiocytosislead
- Histiocyte Societycollaborator
Study Sites (42)
Children's of Alabama
Birmingham, Alabama, 35233, United States
Phoenix Children's Hospital
Phoenix, Arizona, 85006, United States
Arkansas Children's Hospital
Little Rock, Arkansas, 72202, United States
Children's Hospital of Los Angeles
Los Angeles, California, 90027, United States
Valley Children's Healthcare
Madera, California, 93636, United States
UCSF Benioff Children's Hospital of Oakland
Oakland, California, 94609, United States
Children's Hospital of Orange County
Orange, California, 92868, United States
UCSF Helen Diller Family Cancer Center
San Francisco, California, 94158-0106, United States
Connecticut Children's Medical Center
Hartford, Connecticut, 06106, United States
Children's National Medical Center
Washington D.C., District of Columbia, 20010, United States
Johns Hopkins All Children's Hospital
St. Petersburg, Florida, 33701, United States
Children's Healthcare of Atlanta, Emory
Atlanta, Georgia, 30342, United States
Ann & Robert H. Lurie Children's Hospital of Chicago
Chicago, Illinois, 60611-2991, United States
Riley Hospital for Children - Indiana University
Indianapolis, Indiana, 46202, United States
Children's Mercy Hospitals
Kansas City, Kansas, 64108, United States
University of Kentucky A.B.Chandler Medical Center
Lexington, Kentucky, 40536, United States
University of Louisville, Norton Children's Hospital
Louisville, Kentucky, 40202, United States
Johns Hopkins University
Baltimore, Maryland, 21287, United States
Massachusetts General Hospital
Boston, Massachusetts, 02114, United States
Dana Farber Cancer Institute
Boston, Massachusetts, 02115, United States
Children's Minnesota
Minneapolis, Minnesota, 55404, United States
Hackensack University Medical Center
Hackensack, New Jersey, 07601, United States
Cohen Children's Medical Center
New Hyde Park, New York, 11040, United States
Mount Sinai Hospital
New York, New York, 10029, United States
Columbia University / Herbert Irving Cancer Center
New York, New York, 10032, United States
Memorial Sloan Kettering Cancer Center
New York, New York, 10170, United States
SUNY Upstate Medical University
Syracuse, New York, 13210, United States
Children's Hospital at Montefiore
The Bronx, New York, 10467, United States
Carolinas Medical Center, Levine Children's Hospital
Charlotte, North Carolina, 28203, United States
Akron Children's Hospital
Akron, Ohio, 44308, United States
Cincinnati Children's Hospital Medical Center
Cincinnati, Ohio, 45229, United States
Rainbow Babies & Children's Hospital, University Hospitals
Cleveland, Ohio, 44106, United States
Russell J Ebeid Children's Hospital (Promedica)
Toledo, Ohio, 43606, United States
UPMC Children's Hospital of Pittsburgh
Pittsburgh, Pennsylvania, 15224, United States
Medical University of South Carolina (MUSC)
Charleston, South Carolina, 29425, United States
Greenville Health System BI-LO Charities Children's Cancer Center
Greenville, South Carolina, 29605, United States
St. Jude Children's Research Hospital
Memphis, Tennessee, 38105, United States
Vanderbilt-Ingram Cancer Center
Nashville, Tennessee, 37232, United States
Children's Medical Center Dallas, UT Southwestern
Dallas, Texas, 75235, United States
Providence Sacred Heart Children's Hospital
Spokane, Washington, 99204, United States
Madigan Army Medical Center
Tacoma, Washington, 98431, United States
American Family Children's Hospital University of Wisconsin
Madison, Wisconsin, 53792, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
Milen Minkov, MD, Ph.D
Children's Cancer Research Institute / St. Anna Children's Hospital
- STUDY CHAIR
Carlos Rodriguez-Galindo, MD
North American Consortium for Histiocytosis
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 7, 2014
First Posted
July 31, 2014
Study Start
November 2, 2016
Primary Completion (Estimated)
July 1, 2026
Study Completion (Estimated)
July 1, 2026
Last Updated
April 9, 2026
Record last verified: 2026-04