Recurrent Langerhans Cell HistiocytosisPhase 2NCT05828069
A Study With Tovorafenib (DAY101) as a Treatment Option for Progressive, Relapsed, or Refractory Langerhans Cell Histiocytosis
A Phase 2 study testing Biospecimen Collection, Bone Marrow Aspiration and Bone Marrow Biopsy in people with Recurrent Langerhans Cell Histiocytosis and Refractory Langerhans Cell Histiocytosis, run by National Cancer Institute (NCI) at 123 sites in 3 countries.
Trial summary
This phase II trial tests the safety, side effects, best dose and activity of tovorafenib (DAY101) in treating patients with Langerhans cell histiocytosis that is growing, spreading, or getting worse (progressive), has come back (relapsed) after previous treatment, or does not respond to therapy (refractory). Read more about this study
- Who is it for?
- Ages 180 days to 22 years
- Conditions the study is for
- Recurrent Langerhans Cell Histiocytosis, Refractory Langerhans Cell Histiocytosis
- What is being tested?
- Biospecimen Collection, Bone Marrow Aspiration and Bone Marrow Biopsy
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 48 participants
- Where
- 123 sitesin 3 countries
- Study dates
- 28 Mar 2024to 30 Sep 2028
- Phase
- Phase 2
- 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 180 days to 22 years
- All sexes
- No healthy volunteers
- Child, Adult
Who may be able to join
- 180 days- < 22 years (at time of study enrollment)
- Patient must have a body surface area of ≥ 0.3 m^2
- Patients with progressive, relapsed, or recurrent LCH with measurable disease at study entry
- Patients must have had histologic verification of LCH (from either original diagnosis or relapse/progression) at the time of study entry
- Tissue confirmation of relapse is recommended but not required.
- Pathology report must be submitted for central confirmation of diagnosis within 7 days of enrollment.
Show all 50Show fewer
- Formalin-fixed paraffin-embedded (FFPE) blocks or unstained slides (initial diagnosis and/or subsequent biopsies) will be required for retrospective central confirmation of diagnosis and molecular studies
- Patients with mixed histiocytic disorders (e.g. LCH with juvenile xanthogranuloma) may be included
- Patients must have measurable disease
- Patients must have progressive or refractory disease or experience relapse after at least one previous systemic treatment strategy
- Pathogenic somatic mutation detected in genes encoding tyrosine kinase receptors (CSFR1, ERBB3 or ALK), RAS or RAF (may be from original or subsequent biopsy or peripheral blood/bone marrow aspirate). Clinical mutation reports may include quantitative polymerase chain reaction (PCR) (e.g. BRAFV600E) and/or Sanger or next generation sequencing. Immunohistochemistry (e.g. VE1 antibody for BRAFV600E) alone is not sufficient
- Participant must be able to take an enteral dose and formulation of medication. Study medication is only available as an oral suspension or tablet, which may be taken by mouth or other enteral route such as nasogastric, jejunostomy, or gastric tube
- Karnofsky >= 50% for patients > 16 years of age and Lansky >= 50% for patients =< 16 years of age
- Patients must have a performance status corresponding to Eastern Cooperative Oncology Group (ECOG) scores of 0, 1 or 2. Use Karnofsky for patients > 16 years of age and Lansky for patients =< 16 years of age
- Myelosuppressive chemotherapy: Patients must not have received within 14 days of entry onto this study
- Investigational agent or any other anticancer therapy not defined above: Patients must not have received any investigational agent or any other anticancer therapy (including MAPK pathway inhibitor) for at least 14 days prior to planned start of tovorafenib (DAY101)
- Radiation therapy (RT): Patient must not have received RT within 2 weeks after the last dose fraction of RT
- Patients must have fully recovered from any prior surgery
- Patients must have fully recovered from the acute toxic effects of all prior chemotherapy, immunotherapy, targeted inhibitor, and/or radiotherapy with toxicities reduced to grade 1 or less (Common Terminology Criteria for Adverse Events [CTCAE] version 5.0)
- Steroids: =< 0.5 mg/kg/day of prednisone equivalent (maximum 20 mg/day) averaged during the month prior to study enrollment is permissible
- Strong inducers or inhibitors of CYP2C8 are prohibited for 14 days before the first dose of tovorafenib (DAY101) and from planned administration for the duration of study participation
- Medications that are breast cancer resistant protein (BCRP) substrates that have a narrow therapeutic index are prohibited for 14 days before the first dose of tovorafenib (DAY101) and for the duration of study participation
- Peripheral absolute neutrophil count (ANC) >= 750/uL unless secondary to bone marrow involvement, in such cases bone marrow involvement must be documented (must be performed within 7 days prior to enrollment, must be repeated prior to the start of protocol therapy if > 7 days have elapsed from their most recent prior assessment)
- Platelet count >= 75,000/uL (unsupported/without transfusion within the past 7 days) (must be performed within 7 days prior to enrollment, must be repeated prior to the start of protocol therapy if > 7 days have elapsed from their most recent prior assessment)
- Patients with marrow disease must have platelet count of >= 75,000/uL (transfusion support allowed) and must not be refractory to platelet transfusions. Bone marrow involvement must be documented
- Hemoglobin >= 8 g/dL (unsupported/without transfusion within the past 7 days). Patients with marrow disease must have hemoglobin >= 8 g/dL (transfusion support allowed). Bone marrow involvement must be documented
- Hematopoietic growth factors: At least 14 days after the last dose of a long-acting growth factor (e.g., Neulasta [registered trademark]) or 7 days for short-acting growth factor
- A serum creatinine based on age/sex as follows (must be performed within 7 days prior to enrollment, must be repeated prior to the start of protocol therapy if > 7 days have elapsed from their most recent prior assessment)
- Age: 6 months to < 1 year; Maximum Serum Creatinine (mg/dL):= 0.5 mg/dl (male and female)
- Age: 1 to < 2 years; Maximum Serum Creatinine (mg/dL): = 0.6 mg/dl (male and female)
- Age: 2 to < 6 years; Maximum Serum Creatinine (mg/dL): = 0.8 mg/dl (male and female)
- Age: 6 to < 10 years; Maximum Serum Creatinine (mg/dL): = 1.0 mg/dl (male and female)
- Age: 10 to < 13 years; Maximum Serum Creatinine (mg/dL): = 1.2 mg/dl (male and female)
- Age: 13 to < 16 years; Maximum Serum Creatinine (mg/dL): = 1.5 mg/dl (male) and 1.4 mg/dl (female)
- Age: >= 16 years; Maximum Serum Creatinine (mg/dL): = 1.7 mg/dl (male) and 1.4 mg/dl (female)
- OR- a 24 hour urine creatinine clearance >= 50 mL/min/1.73 m^2
- OR- a glomerular filtration rate (GFR) >= 50 mL/min/1.73 m^2. GFR must be performed using direct measurement with a nuclear blood sampling method OR direct small molecule clearance method (iothalamate or other molecule per institutional standard)
- Note: Estimated GFR (eGFR) from serum creatinine, cystatin C or other estimates are not acceptable for determining eligibility
- Bilirubin (sum of conjugated + unconjugated) =< 1.5 x upper limit of normal (ULN) for age (must be performed within 7 days prior to enrollment, must be repeated prior to the start of protocol therapy if > 7 days have elapsed from their most recent prior assessment)
- Alanine aminotransferase (ALT) =< 3 x ULN for age (must be performed within 7 days prior to enrollment, must be repeated prior to the start of protocol therapy if > 7 days have elapsed from their most recent prior assessment)
- Serum albumin >= 2 g/dl must be performed within 7 days prior to enrollment, must be repeated prior to the start of protocol therapy if > 7 days have elapsed from their most recent prior assessment)
- For patients with liver disease caused by their histiocytic disorder (as evaluated on radiographic imaging or biopsy): patients may be enrolled with abnormal bilirubin, aspartate aminotransferase (AST), ALT and albumin with documentation of histiocytic liver disease
- Fractional shortening (FS) of >= 25% or ejection fraction of >= 50%, as determined by echocardiography or multigated acquisition scan (MUGA) within 28 days prior to study enrollment. Depending on institutional standard, either FS or left ventricular ejection fraction (LVEF) is adequate for enrollment if only one value is measured; if both values are measured, then both values must meet criteria above (must be obtained within 28 days prior to enrollment and start of protocol therapy) (repeat if necessary)
- No evidence of dyspnea at rest, no exercise intolerance, and a pulse oximetry > 94% if there is clinical indication for determination; unless it is due to underlying pulmonary LCH
- Central Nervous System Function Defined As:
- Patients with seizure disorder may be enrolled if well controlled
- Central nervous system (CNS) toxicity =< Grade 2
- Human immunodeficiency virus (HIV) infected patients on effective anti-retroviral therapy with undetectable viral load within 6 months are eligible for this trial unless antiretroviral therapy interacts with the metabolism of tovorafenib (DAY101) and cannot safely be changed to antivirals that do not interact with study medication
- All patients and/or their parent(s) or legal guardians must sign a written informed consent
- All institutional, Food and Drug Administration (FDA), and National Cancer Institute (NCI) requirements for human studies must be met.
Who cannot join
- LCH arising along with other hematologic malignancy (e.g. mixed LCH with acute lymphoblastic leukemia) or any history of non-histiocytic malignancy
- Disease scenarios as below will be excluded
- Skin-limited disease
- Gastrointestinal (GI) tract involvement only (those that have disease that can be determined by endoscopic biopsies only)
- LCH-associated neurodegeneration (LCH-ND) without parenchymal lesions or other systemic lesions
- Patients with activating mutations in MAP2K1 are not eligible for this study due to drug target specificity. Mutation status will be submitted to study team within 7 days of enrollment
Show all 19Show fewer
- Refractory nausea and vomiting, malabsorption, or external biliary shunt that would preclude adequate absorption of tovorafenib (DAY101)
- Uncontrolled systemic bacterial, viral, or fungal infection
- Major surgical procedure or significant traumatic injury within 14 days prior to study enrollment, or anticipation of need for major surgical procedure during the course of the study. Placement of a vascular access device or minor surgery is permitted within fourteen (14) days of study enrollment (provided that the wound has healed)
- History of significant bowel resection that would preclude adequate absorption or other significant malabsorptive disease
- Ophthalmologic considerations: Patients with known significant ophthalmologic conditions or known risk factors for retinal vein occlusion (RVO) or central serous retinopathy (CSR) are not eligible
- History of solid organ or hematopoietic bone marrow transplantation
- Clinically significant active cardiovascular disease, or history of myocardial infarction, or deep vein thrombosis/pulmonary embolism within 6 months prior to enrollment, ongoing cardiomyopathy, or current prolonged QT interval > 440 ms based on triplicate electrocardiogram (ECG) average
- History of Grade >= 2 CNS hemorrhage or history of any CNS hemorrhage within 28 days of study entry
- History of any drug reaction with eosinophilia and systemic symptoms (DRESS) syndrome or Stevens Johnsons syndrome (SJS) or who are allergic to tovorafenib (DAY101) or any of its components
- CTCAE version (V.) 5.0 Grade 3 symptomatic creatinine kinase (CPK) elevation (> 5 x ULN)
- Female patients who are pregnant are ineligible. A pregnancy test is required for female patients of childbearing potential
- Lactating females who plan to breastfeed their infants are ineligible
- Sexually active patients of reproductive potential who have not agreed to use an effective contraceptive method for the duration of their study participation are ineligible. Women of childbearing potential must use non-hormonal contraception during tovorafenib treatment and for at least 28 days after the last dose. Men should use effective contraception and must not father a child while taking tovorafenib and for 14 days after the last dose
Trial locations and contacts
123 sites in 3 countries. Contact the study team or a site near you to ask about taking part.
123 sites in 3 countries
United States108 sites, 103 recruiting
- Recruiting
Albany Medical Center
Albany, New York, 12208
Site Public Contact, 518-262-5513
Lauren R. Weintraub
- Recruiting
Mission Hospital
Asheville, North Carolina, 28801
Site Public Contact, 828-213-7055, NCDV.ResearchRegulatory@HCAHealthcare.com
Douglas J. Scothorn
- Recruiting
Children's Healthcare of Atlanta - Arthur M Blank Hospital
Atlanta, Georgia, 30329
Site Public Contact, 404-785-0232, Olivia.Floyd@choa.org
Kathryn S. Sutton
- Recruiting
Children's Hospital Colorado
Aurora, Colorado, 80045
Site Public Contact, 303-764-5056, josh.b.gordon@nsmtp.kp.org
Timothy P. Garrington
- Recruiting
Dell Children's Medical Center of Central Texas
Austin, Texas, 78723
Site Public Contact, 512-628-1902, TXAUS-DL-SFCHemonc.research@ascension.org
Shannon M. Cohn
- Recruiting
Sinai Hospital of Baltimore
Baltimore, Maryland, 21215
Site Public Contact, 410-601-9083
Jason M. Fixler
- Recruiting
Johns Hopkins University/Sidney Kimmel Cancer Center
Baltimore, Maryland, 21287
Site Public Contact, 410-955-8804, jhcccro@jhmi.edu
Elias Zambidis
- Recruiting
Children's Hospital of Alabama
Birmingham, Alabama, 35233
Site Public Contact, 205-638-9285, oncologyresearch@peds.uab.edu
Matthew A. Kutny
- Recruiting
Maimonides Medical Center
Brooklyn, New York, 11219
Site Public Contact, 718-765-2500
Mahmut Y. Celiker
- Recruiting
Vandalia Health/CAMC Institute for Academic Medicine
Charleston, West Virginia, 25304
Site Public Contact, 304-388-9944, CAMCClinicalTrials@vandaliahealth.org
Mohamad H. Badawi
- Recruiting
University of Virginia Cancer Center
Charlottesville, Virginia, 22908
Site Public Contact, 434-243-6303, uvacancertrials@hscmail.mcc.virginia.edu
Brian C. Belyea
- Recruiting
Lurie Children's Hospital-Chicago
Chicago, Illinois, 60611
Site Public Contact, 773-880-4562
Joanna L. Weinstein
- Recruiting
University of Chicago Comprehensive Cancer Center
Chicago, Illinois, 60637
Site Public Contact, 773-702-8222, cancerclinicaltrials@bsd.uchicago.edu
Perry C. Morocco
- Recruiting
Rainbow Babies and Childrens Hospital
Cleveland, Ohio, 44106
Site Public Contact, 216-844-5437
Duncan S. Stearns
- Recruiting
Prisma Health Richland Hospital
Columbia, South Carolina, 29203
Site Public Contact, 864-522-4317, Kim.Williams3@prismahealth.org
Stuart L. Cramer
- Recruiting
Nationwide Children's Hospital
Columbus, Ohio, 43205
Site Public Contact, 614-722-6039, Melinda.Triplet@nationwidechildrens.org
Mark A. Ranalli
- Recruiting
UT Southwestern/Simmons Cancer Center-Dallas
Dallas, Texas, 75390
Site Public Contact, 214-648-7097, canceranswerline@UTSouthwestern.edu
Erin B. Butler
- Recruiting
Geisinger Medical Center
Danville, Pennsylvania, 17822
Site Public Contact, 570-271-5251, cancerresearch@geisinger.edu
Jagadeesh Ramdas
- Recruiting
Dayton Children's Hospital
Dayton, Ohio, 45404
Site Public Contact, 800-228-4055
Jordan M. Wright
- Recruiting
Rocky Mountain Hospital for Children-Presbyterian Saint Luke's Medical Center
Denver, Colorado, 80218
Site Public Contact, 303-832-2344, PSGResearchSharedMailbox@HCAHealthcare.com
Florence Choo
- Recruiting
Blank Children's Hospital
Des Moines, Iowa, 50309
Site Public Contact, 515-241-8912, samantha.mallory@unitypoint.org
Samantha L. Mallory
- Recruiting
Kaiser Permanente Downey Medical Center
Downey, California, 90242
Site Public Contact, 626-564-3455
Robert M. Cooper
- Recruiting
Duke University Medical Center
Durham, North Carolina, 27710
Site Public Contact, 888-275-3853
Jessica M. Sun
- Suspended
Michigan State University
East Lansing, Michigan, 48823
- Recruiting
El Paso Children's Hospital
El Paso, Texas, 79905
Site Public Contact, 915-298-5444, ranjan.bista@ttuhsc.edu
Benjamin Carcamo
- Recruiting
Golisano Children's Hospital of Southwest Florida
Fort Myers, Florida, 33908
Site Public Contact, 239-343-5333, molly.arnstrom@leehealth.org
Emad K. Salman
- Recruiting
UF Health Cancer Institute - Gainesville
Gainesville, Florida, 32610
Site Public Contact, 352-273-8010
Brian Stover
- Recruiting
Corewell Health Grand Rapids Hospitals - Helen DeVos Children's Hospital
Grand Rapids, Michigan, 49503
Site Public Contact, 616-391-1230, crcwm-regulatory@crcwm.org
Kathleen Y. Butler
- Recruiting
Saint Vincent Hospital Cancer Center Green Bay
Green Bay, Wisconsin, 54301
Site Public Contact, 920-433-8889, WI_research_admin@hshs.org
Catherine A. Long
- Recruiting
East Carolina University
Greenville, North Carolina, 27834
Site Public Contact, 252-744-1015, eubankss@ecu.edu
Andrea R. Whitfield
- Recruiting
BI-LO Charities Children's Cancer Center
Greenville, South Carolina, 29605
Site Public Contact, 864-522-4317, Kim.Williams3@prismahealth.org
Aniket Saha
- Recruiting
Hackensack University Medical Center
Hackensack, New Jersey, 07601
Site Public Contact, 551-996-2897
Katharine Offer
- Recruiting
Connecticut Children's Medical Center
Hartford, Connecticut, 06106
Site Public Contact, 860-545-9981
Michael S. Isakoff
- Recruiting
Memorial Regional Hospital/Joe DiMaggio Children's Hospital
Hollywood, Florida, 33021
Site Public Contact, 954-265-1847, OHR@mhs.net
Iftikhar Hanif
- Recruiting
Kapiolani Medical Center for Women and Children
Honolulu, Hawaii, 96826
Site Public Contact, 808-983-6090
Wade T. Kyono
- Recruiting
Baylor College of Medicine/Dan L Duncan Comprehensive Cancer Center
Houston, Texas, 77030
Site Public Contact, 713-798-1354, burton@bcm.edu
Olive S. Eckstein
- Recruiting
UT MD Anderson Cancer Center
Houston, Texas, 77030
Site Public Contact, 866-632-6789, askmdanderson@mdanderson.org
Najat C. Daw
- Recruiting
Riley Hospital for Children
Indianapolis, Indiana, 46202
Site Public Contact, 800-248-1199
Jennifer A. Belsky
- Recruiting
University of Iowa/Holden Comprehensive Cancer Center
Iowa City, Iowa, 52242
Site Public Contact, 800-237-1225
Andrew P. Groves
- Recruiting
University of Mississippi Medical Center
Jackson, Mississippi, 39216
Site Public Contact, 601-815-6700
Amanda Strobel
- Recruiting
Nemours Children's Clinic-Jacksonville
Jacksonville, Florida, 32207
Site Public Contact, 302-651-5572, Allison.bruce@nemours.org
Vibhuti Agarwal
- Recruiting
Bronson Methodist Hospital
Kalamazoo, Michigan, 49007
Site Public Contact, 616-391-1230, crcwm-regulatory@crcwm.org
Kathleen Y. Butler
- Recruiting
East Tennessee Childrens Hospital
Knoxville, Tennessee, 37916
Site Public Contact, 865-541-8266
Susan E. Spiller
- Recruiting
Alliance for Childhood Diseases/Cure 4 the Kids Foundation
Las Vegas, Nevada, 89135
Site Public Contact, 702-384-0013, research@sncrf.org
Joseph L. Lasky
- Recruiting
Summerlin Hospital Medical Center
Las Vegas, Nevada, 89144
Site Public Contact, 702-384-0013, research@sncrf.org
Joseph L. Lasky
- Recruiting
University of Kentucky/Markey Cancer Center
Lexington, Kentucky, 40536
Site Public Contact, 859-257-3379
James T. Badgett
- Recruiting
Arkansas Children's Hospital
Little Rock, Arkansas, 72202-3591
Site Public Contact, 501-364-7373
Michael W. Bishop
- Recruiting
Loma Linda University Medical Center
Loma Linda, California, 92354
Site Public Contact, 909-558-4050
Albert Kheradpour
- Recruiting
Miller Children's and Women's Hospital Long Beach
Long Beach, California, 90806
Site Public Contact, 562-933-5600
Jacqueline N. Casillas
- Recruiting
Children's Hospital Los Angeles
Los Angeles, California, 90027
Site Public Contact, 323-361-4110
Rebecca S. Parker
- Active, not recruiting
Valley Children's Hospital
Madera, California, 93636
- Suspended
University of Miami Miller School of Medicine-Sylvester Cancer Center
Miami, Florida, 33136
- Recruiting
Nicklaus Children's Hospital
Miami, Florida, 33155
Site Public Contact, 888-624-2778
Ziad A. Khatib
- Recruiting
Children's Hospital of Wisconsin
Milwaukee, Wisconsin, 53226
Site Public Contact, 414-955-4727, MACCCTO@mcw.edu
Peter H. Shaw
- Recruiting
Children's Hospitals and Clinics of Minnesota - Minneapolis
Minneapolis, Minnesota, 55404
Site Public Contact, 612-813-5913, pauline.mitby@childrensmn.org
Michael K. Richards
- Active, not recruiting
University of Minnesota/Masonic Cancer Center
Minneapolis, Minnesota, 55455
- Recruiting
Morristown Medical Center
Morristown, New Jersey, 07960
Site Public Contact, 973-971-5900
Kathryn L. Laurie
- Recruiting
The Children's Hospital at TriStar Centennial
Nashville, Tennessee, 37203
Site Public Contact, 615-342-1919
Clinton M. Carroll
- Recruiting
Vanderbilt University/Ingram Cancer Center
Nashville, Tennessee, 37232
Site Public Contact, 800-811-8480
Devang J. Pastakia
- Recruiting
Rutgers Cancer Institute of New Jersey-Robert Wood Johnson University Hospital
New Brunswick, New Jersey, 08903
Site Public Contact, 732-235-8675
Marissa Botwinick
- Recruiting
Yale University
New Haven, Connecticut, 06520
Site Public Contact, 203-785-5702, canceranswers@yale.edu
Farzana Pashankar
- Recruiting
The Steven and Alexandra Cohen Children's Medical Center of New York
New Hyde Park, New York, 11040
Site Public Contact, 718-470-3460
Julie I. Krystal
- Recruiting
Children's Hospital New Orleans
New Orleans, Louisiana, 70118
Site Public Contact, 504-894-5377
Maria C. Velez-Yanguas
- Recruiting
Ochsner Medical Center Jefferson
New Orleans, Louisiana, 70121
Site Public Contact, 504-842-8084, Elisemarie.curry@ochsner.org
Craig Lotterman
- Recruiting
Laura and Isaac Perlmutter Cancer Center at NYU Langone
New York, New York, 10016
Site Public Contact, CancerTrials@nyulangone.org
Elizabeth A. Raetz
- Recruiting
Mount Sinai Hospital
New York, New York, 10029
Site Public Contact, 212-824-7309, CCTO@mssm.edu
Pamela R. Merola
- Recruiting
NYP/Columbia University Medical Center/Herbert Irving Comprehensive Cancer Center
New York, New York, 10032
Site Public Contact, 212-342-5162, cancerclinicaltrials@cumc.columbia.edu
Nobuko Hijiya
- Recruiting
Memorial Sloan Kettering Cancer Center
New York, New York, 10065
Site Public Contact, 212-639-7592
Christopher J. Forlenza
- Recruiting
NYP/Weill Cornell Medical Center
New York, New York, 10065
Site Public Contact, 212-746-1848
Nitya Gulati
- Recruiting
Children's Hospital of The King's Daughters
Norfolk, Virginia, 23507
Site Public Contact, 757-668-7243, CCBDCresearch@chkd.org
Melissa S. Mark
- Recruiting
UCSF Benioff Children's Hospital Oakland
Oakland, California, 94609
Site Public Contact, 510-428-3264, PedOncRschOAK@ucsf.edu
Jennifer G. Michlitsch
- Recruiting
Kaiser Permanente-Oakland
Oakland, California, 94611
Site Public Contact, 877-642-4691, Kpoct@kp.org
Aarati V. Rao
- Recruiting
University of Oklahoma Health Sciences Center
Oklahoma City, Oklahoma, 73104
Site Public Contact, 405-271-8777, ou-clinical-trials@ouhsc.edu
Rene Y. McNall-Knapp
- Recruiting
Children's Hospital and Medical Center of Omaha
Omaha, Nebraska, 68114
Site Public Contact, 402-955-3949
Jill C. Beck
- Recruiting
University of Nebraska Medical Center
Omaha, Nebraska, 68198
Site Public Contact, 402-559-6941, unmcrsa@unmc.edu
Jill C. Beck
- Recruiting
Children's Hospital of Orange County
Orange, California, 92868
Site Public Contact, 714-509-8646, oncresearch@choc.org
Elyssa M. Rubin
- Recruiting
Arnold Palmer Hospital for Children
Orlando, Florida, 32806
Site Public Contact, 321-841-5357, Jennifer.spinelli@orlandohealth.com
Zhongbo Hu
- Recruiting
Nemours Children's Hospital
Orlando, Florida, 32827
Site Public Contact, 302-651-5572, Allison.bruce@nemours.org
Vibhuti Agarwal
- Recruiting
Lucile Packard Children's Hospital Stanford University
Palo Alto, California, 94304
Site Public Contact, 800-694-0012, ccto-office@stanford.edu
Jay Michael S. Balagtas
- Recruiting
Saint Joseph's Regional Medical Center
Paterson, New Jersey, 07503
Site Public Contact, 973-754-2207, HallL@sjhmc.org
Alissa Kahn
- Recruiting
Nemours Children's Clinic - Pensacola
Pensacola, Florida, 32504
Site Public Contact, helpdesk@childrensoncologygroup.org
Jeffrey H. Schwartz
- Recruiting
OSF Children's Hospital of Illinois
Peoria, Illinois, 61637
Site Public Contact, 309-624-4945, ChildrensHospitalofIllinois@osfhealthcare.org
Prerna Kumar
- Recruiting
Children's Hospital of Philadelphia
Philadelphia, Pennsylvania, 19104
Site Public Contact, 267-425-5544, CancerTrials@email.chop.edu
Michael D. Hogarty
- Recruiting
Saint Christopher's Hospital for Children
Philadelphia, Pennsylvania, 19134
Site Public Contact, 215-427-8991
Gregory E. Halligan
- Recruiting
Children's Hospital of Pittsburgh of UPMC
Pittsburgh, Pennsylvania, 15224
Site Public Contact, 412-692-8570, jean.tersak@chp.edu
Julia E. Segal
- Recruiting
Oregon Health and Science University
Portland, Oregon, 97239
Site Public Contact, 503-494-1080, trials@ohsu.edu
Katrina Winsnes
- Recruiting
VCU Massey Comprehensive Cancer Center
Richmond, Virginia, 23298
Site Public Contact, 804-628-6430, CTOclinops@vcu.edu
Nadirah El-Amin
- Recruiting
Primary Children's Hospital
Salt Lake City, Utah, 84113
Site Public Contact, 801-585-5270
Taumoha Ghosh
- Recruiting
Children's Hospital of San Antonio
San Antonio, Texas, 78207
Site Public Contact, 210-704-2894, bridget.medina@christushealth.org
Julie Voeller
- Recruiting
Methodist Children's Hospital of South Texas
San Antonio, Texas, 78229
Site Public Contact, 210-575-6240, Vinod.GidvaniDiaz@hcahealthcare.com
Jose M. Esquilin
- Recruiting
University of Texas Health Science Center at San Antonio
San Antonio, Texas, 78229
Site Public Contact, 210-450-3800, phoresearchoffice@uthscsa.edu
Allison C. Grimes
- Recruiting
UCSF Medical Center-Mission Bay
San Francisco, California, 94158
Site Public Contact, 877-827-3222, cancertrials@ucsf.edu
Natalie L. Wu
- Recruiting
Memorial Health University Medical Center
Savannah, Georgia, 31404
Site Public Contact, 912-350-7887, Lorraine.OHara@hcahealthcare.com
James N. Yarnall
- Recruiting
Seattle Children's Hospital
Seattle, Washington, 98105
Site Public Contact, 866-987-2000
Sarah E. Leary
- Recruiting
Sanford USD Medical Center - Sioux Falls
Sioux Falls, South Dakota, 57117-5134
Site Public Contact, 605-312-3320, OncologyClinicalTrialsSF@SanfordHealth.org
Jordan Fritch-Hanson
- Recruiting
Providence Sacred Heart Medical Center and Children's Hospital
Spokane, Washington, 99204
Site Public Contact, 800-228-6618, HopeBeginsHere@providence.org
Judy L. Felgenhauer
- Recruiting
Cardinal Glennon Children's Medical Center
St Louis, Missouri, 63104
Site Public Contact, 314-268-4000
William S. Ferguson
- Recruiting
Washington University School of Medicine
St Louis, Missouri, 63110
Site Public Contact, 800-600-3606, info@siteman.wustl.edu
Bryan A. Sisk
- Recruiting
Mercy Hospital Saint Louis
St Louis, Missouri, 63141
Site Public Contact, 314-251-7066
Robin D. Hanson
- Recruiting
Johns Hopkins All Children's Hospital
St. Petersburg, Florida, 33701
Site Public Contact, 727-767-4784, Ashley.Repp@jhmi.edu
Jennifer B. Dean
- Recruiting
State University of New York Upstate Medical University
Syracuse, New York, 13210
Site Public Contact, 315-464-5476
Melanie A. Comito
- Recruiting
Saint Joseph's Hospital/Children's Hospital-Tampa
Tampa, Florida, 33607
Site Public Contact, 813-357-0849, jennifer.manns@baycare.org
Don E. Eslin
- Recruiting
Scott and White Memorial Hospital
Temple, Texas, 76508
Site Public Contact, 254-724-5407
Nicholas W. McGregor
- Recruiting
Montefiore Medical Center - Moses Campus
The Bronx, New York, 10467
Site Public Contact, 718-379-6866, eskwak@montefiore.org
Alice Lee
- Active, not recruiting
New York Medical College
Valhalla, New York, 10595
- Recruiting
Children's National Medical Center
Washington D.C., District of Columbia, 20010
Site Public Contact, 202-476-2800, OncCRC_OnCall@childrensnational.org
Jeffrey S. Dome
- Recruiting
Alfred I duPont Hospital for Children
Wilmington, Delaware, 19803
Site Public Contact, 302-651-5572, Allison.bruce@nemours.org
Vibhuti Agarwal
- Recruiting
Wake Forest University Health Sciences
Winston-Salem, North Carolina, 27157
Site Public Contact, 336-713-6771
Sarah Supples
Canada10 sites, 9 recruiting
- Recruiting
University of Alberta Hospital
Edmonton, Alberta, T6G 2B7
Site Public Contact, 780-407-8798, pedsoncologyresearch@ahs.ca
Sarah J. McKillop
- Recruiting
IWK Health Centre
Halifax, Nova Scotia, B3K 6R8
Site Public Contact, 902-470-8520, Research@iwk.nshealth.ca
Chelsea Ash
- Suspended
McMaster Children's Hospital at Hamilton Health Sciences
Hamilton, Ontario, L8N 3Z5
- Recruiting
Children's Hospital
London, Ontario, N6A 5W9
Site Public Contact, 519-685-8306
Shayna M. Zelcer
- Recruiting
The Montreal Children's Hospital of the MUHC
Montreal, Quebec, H3H 1P3
Site Public Contact, 514-412-4445, info@thechildren.com
Stephanie Mourad
- Recruiting
Centre Hospitalier Universitaire Sainte-Justine
Montreal, Quebec, H3T 1C5
Site Public Contact, 514-345-4931, yvan.samson@umontreal.ca
Monia Marzouki
- Recruiting
CHU de Quebec-Centre Hospitalier de l'Universite Laval (CHUL)
Québec, G1V 4G2
Site Public Contact, 418-525-4444, rechclinique@crchudequebec.ulaval.ca
Bruno Michon
- Recruiting
Centre Hospitalier Universitaire de Sherbrooke-Fleurimont
Sherbrooke, Quebec, J1H 5N4
Site Public Contact, 819-820-6480, crcinformation.chus@ssss.gouv.qc.ca
Stephanie Vairy
- Recruiting
Hospital for Sick Children
Toronto, Ontario, M5G 1X8
Site Public Contact, 416-813-7654, ask.CRS@sickkids.ca
Oussama A. Abla
- Recruiting
British Columbia Children's Hospital
Vancouver, British Columbia, V6H 3V4
Site Public Contact, 604-875-2345 ext. 6477
Rebecca J. Deyell
Australia5 sites, 5 recruiting
- Recruiting
John Hunter Children's Hospital
Hunter Regional Mail Centre, New South Wales, 2310
Site Public Contact, (02) 4985 5180
Kristy McCarthy
- Recruiting
Royal Children's Hospital
Parkville, Victoria, 3052
Site Public Contact, 61 3 9345 5656, Jordan.Hansford@rch.org.au
Martin A. Campbell
- Recruiting
Perth Children's Hospital
Perth, Western Australia, 6009
Site Public Contact, helpdesk@childrensoncologygroup.org
Michelle Ng
- Recruiting
Sydney Children's Hospital
Randwick, New South Wales, 2031
Site Public Contact, (02) 9382-1721
Draga Barbaric
- Recruiting
Queensland Children's Hospital
South Brisbane, Queensland, 4101
Site Public Contact, 61 7 3068 1111
Steven A. Foresto
About this study
Official title: Phase 2 Study of Tovorafenib (DAY101) in Relapsed and Refractory Langerhans Cell Histiocytosis
This phase II trial tests the safety, side effects, best dose and activity of tovorafenib (DAY101) in treating patients with Langerhans cell histiocytosis that is growing, spreading, or getting worse (progressive), has come back (relapsed) after previous treatment, or does not respond to therapy (refractory). Langerhans cell histiocytosis is a type of disease that occurs when the body makes too many immature Langerhans cells (a type of white blood cell). When these cells build up, they can form tumors in certain tissues and organs including bones, skin, lungs and pituitary gland and can damage them. This tumor is more common in children and young adults. DAY101 may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Using DAY101 may be effective in treating patients with relapsed or refractory Langerhans cell histiocytosis.
Read the detailed description
PRIMARY OBJECTIVE:
- To determine overall response rate (ORR) for children and young adults with relapsed or refractory BRAFV600E positive (cohort 1) and BRAFV600E negative (cohort 2) Langerhans cell histiocytosis (LCH) treated with tovorafenib (DAY101) after 2 cycles and must be maintained 4 weeks later.
SECONDARY OBJECTIVES:
- To determine nature and severity of adverse events in patients treated with tovorafenib (DAY101) for relapsed or refractory LCH.
II. To describe event-free survival (EFS) at 1 year in children and young adults with relapsed and refractory LCH treated with tovorafenib (DAY 101) for up to 1 year.
III. To determine durability of response in children and young adults with relapsed or refractory LCH treated with tovorafenib (DAY101) following cessation of therapy in patients with complete response (CR) at 1 year.
IV. To describe progression-free (and relapse-free) survival (PFS) and overall survival (OS) in children and young adults with relapsed or refractory LCH treated with tovorafenib (DAY101) for up to 1 year.
EXPLORATORY OBJECTIVES:
- To determine potential role of pathogenic tumor mutation in response to tovorafenib (DAY101), and to evaluate changes in bone marrow and peripheral blood cell populations carrying pathogenic mutations in response to tovorafenib (DAY101) therapy.
Ia. To define somatic mutations in LCH lesion biopsies; Ib. To determine impact of tovorafenib (DAY101) on bone marrow and blood BRAFV600E+ mononuclear cells; Ic. To determine impact of tovorafenib (DAY101) on cerebral spinal fluid and disease response; Id. To determine the performance of standardized immunohistochemical analysis of LCH lesion biopsies.
II. To compare performance of LCH-specific response criteria to Response Evaluation Criteria in Solid Tumors (RECIST) criteria.
III. To describe the pharmacokinetics of tovorafenib (DAY101) when administered to pediatric and young adult patients with relapse or refractory LCH.
OUTLINE: This is a dose escalation study of tovorafenib followed by a phase II trial.
Patients receive tovorafenib orally (PO) once weekly (QW) on days 1, 8, 15, and 22 of each cycle. Cycles repeat every 28 days for 12 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo multi-gated acquisition (MUGA) or echocardiography (ECHO) scans, and fludeoxyglucose F-18 (FDG)-positron emission tomography (PET) or computed tomography (CT) throughout the trial, and collection of blood and urine samples on study. Patients with suspicion of bone marrow and/or central nervous system involvement will also undergo bone marrow biopsy and aspiration and lumbar puncture on study and during follow up.
After completion of study treatment, patients are followed up at 28 days, months 3, 6, 9, and 12, and then at 2 years post cycle 12.
- Being tested
- Biospecimen Collection, Bone Marrow Aspiration, Bone Marrow Biopsy, Computed Tomography, Echocardiography Test
- 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.
Biospecimen CollectionProcedure or surgery
Also called Biological Sample Collection, Biospecimen Collected, Sample Collection, Specimen Collection
Undergo collection of blood and urine samples
Bone Marrow AspirationProcedure or surgery
Undergo bone marrow aspiration
Bone Marrow BiopsyProcedure or surgery
Also called Biopsy of Bone Marrow, Biopsy, Bone Marrow
Undergo bone marrow biopsy
Computed TomographyProcedure or surgery
Also called CAT, CAT Scan, Computed Axial Tomography, Computerized Axial Tomography
Undergo CT
Echocardiography TestProcedure or surgery
Also called EC, Echocardiography
Undergo ECHO
FDG-Positron Emission Tomography and Computed Tomography ScanProcedure or surgery
Also called FDG PET/CT
Undergo FDG-PET imaging
Lumbar PunctureProcedure or surgery
Also called LP, Spinal Tap
Undergo lumbar puncture
Multigated Acquisition ScanProcedure or surgery
Also called Blood Pool Scan, Equilibrium Radionuclide Angiography, Gated Blood Pool Imaging, Gated Heart Pool Scan
Undergo MUGA
TovorafenibDrug
Also called BIIB 024, BIIB-024, BIIB024, DAY 101
Given PO
| Study group | Role | What they receive |
|---|---|---|
| Treatment (tovorafenib) | Experimental | Patients receive tovorafenib PO QW on days 1, 8, 15, and 22 of each cycle. Cycles repeat every 28 days for 12 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo MUGA or ECHO scans, and FDG-PET or CT throughout the trial, and collection of blood and urine samples on study. Patients with suspicion of bone marrow and/or central nervous system involvement will also undergo bone marrow biopsy and aspiration and lumbar puncture on study and during follow up. Receives: Procedure: Biospecimen Collection; Procedure: Bone Marrow Aspiration; Procedure: Bone Marrow Biopsy; Procedure: Computed Tomography; Procedure: Echocardiography Test; Procedure: FDG-Positron Emission Tomography and Computed Tomography Scan; Procedure: Lumbar Puncture; Procedure: Multigated Acquisition Scan; Drug: Tovorafenib |
What is being measured
The primary outcome is the main question the study is designed to answer.
Frequency of dose limiting toxicity (dose finding phase)
Will be analyzed descriptively.
Measured: Up to 28 days
Overall response rate (phase II)
Will be assessed using minimax Simon's two-stage designs in each of the BRAFV600E and non-BRAFV600E cohorts separately. The two arms will not be directly compared. The 95% confidence interval for the overall response rate will be adjusted for the two-stage design.
Measured: After 2 cycles of therapy (each cycle is 28 days)
Secondary outcomes (4)
Event free survival rate
Will be estimated by the Kaplan-Meier method beginning at study enrollment. Will be evaluated two years after enrollment of the last patient on the trial and estimates at specific timepoints will be presented along with log-log transformed 95% confidence intervals. Events are defined as relapse/progression, second malignant neoplasm, or death.
Measured: At 1 and 2 years
Progression free survival rate
Will be estimated by the Kaplan-Meier method beginning at study enrollment. Will be evaluated by two years after enrollment of the last patient on the trial and estimates at specific timepoints will be presented along with log-log transformed 95% confidence intervals.
Measured: Up to 2 years
Duration of response rate
Response is based on modified Response Evaluation Criteria for Solid Tumors (RECIST)/Positron Emission Tomography Response Criteria in Solid Tumors (PERCIST) consistent with other recent pediatric Langerhans Cell Histiocytosis trials (NCT02670707 and NCT04079179) and adult histiocytosis trials with MAPK inhibitors. Comparison of response assessed via RECIST versus (vs.) PERCIST will be analyzed by displaying two-way tables of the responses with no formal statistical testing.
Measured: After 12 months of therapy. From the scan confirming the complete response or partial response (whichever is recorded first), until the first occurrence of recurrent or progressive disease or death (event) or last known status on trial
Overall survival rate
Will be estimated by the Kaplan-Meier method beginning at study enrollment. Will be evaluated two years after enrollment of the last patient on the trial and estimates at specific timepoints will be presented along with log-log transformed 95% confidence intervals.
Measured: Up to 2 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted25 Apr 2023
- Study start28 Mar 2024
- Primary completion30 Sep 2028 (estimated)
- Study completion30 Sep 2028 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Recurrent Langerhans Cell HistiocytosisStudies of the same condition, open and under way.
- More trials run by National Cancer Institute (NCI)The sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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 2
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Sequential
- Masking
- None (open label)
- Enrolment
- 48 participants (estimated)
Sponsor and investigators
- Lead sponsor
- National Cancer Institute (NCI)
- Sponsor type
- US National Institutes of Health
- Responsible party
- Sponsor
- Investigators
- Carl E Allen, Principal investigator, Children's Oncology Group
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05828069
- Sponsor's protocol ID
- NCI-2022-06282
- Other IDs
- NCI-2022-06282, ANHL2121, ANHL2121, U10CA180886
- Status last verified
- Jul 2026
- First submitted
- 21 Apr 2023
- Last updated
- 30 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: NCI is committed to sharing data in accordance with NIH policy. For more details on how clinical trial data is shared, access the link to the NIH data sharing policy page.
Study at a glance
From the registry record, last updated by the sponsor on 30 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Phase 2 Study of Tovorafenib (DAY101) in Relapsed and Refractory Langerhans Cell Histiocytosis
- ClinicalTrials.gov ID
- NCT05828069
- Acronym / sponsor ID
- NCI-2022-06282
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 48 participants (estimated)
- Lead sponsor
- National Cancer Institute (NCI)US National Institutes of Health
- Study start
- 28 Mar 2024 (actual)
- Primary completion
- 30 Sep 2028 (estimated)
- Study completion
- 30 Sep 2028 (estimated)
- First posted
- 25 Apr 2023 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This phase II trial tests the safety, side effects, best dose and activity of tovorafenib (DAY101) in treating patients with Langerhans cell histiocytosis that is growing, spreading, or getting worse (progressive), has come back (relapsed) after previous treatment, or does not respond to therapy (refractory). Langerhans cell histiocytosis is a type of disease that occurs when the body makes too many immature Langerhans cells (a type of white blood cell). When these cells build up, they can form tumors in certain tissues and organs including bones, skin, lungs and pituitary gland and can damage them. This tumor is more common in children and young adults. DAY101 may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Using DAY101 may be effective in treating patients with relapsed or refractory Langerhans cell histiocytosis.
Detailed description
PRIMARY OBJECTIVE:
- To determine overall response rate (ORR) for children and young adults with relapsed or refractory BRAFV600E positive (cohort 1) and BRAFV600E negative (cohort 2) Langerhans cell histiocytosis (LCH) treated with tovorafenib (DAY101) after 2 cycles and must be maintained 4 weeks later.
SECONDARY OBJECTIVES:
- To determine nature and severity of adverse events in patients treated with tovorafenib (DAY101) for relapsed or refractory LCH.
II. To describe event-free survival (EFS) at 1 year in children and young adults with relapsed and refractory LCH treated with tovorafenib (DAY 101) for up to 1 year.
III. To determine durability of response in children and young adults with relapsed or refractory LCH treated with tovorafenib (DAY101) following cessation of therapy in patients with complete response (CR) at 1 year.
IV. To describe progression-free (and relapse-free) survival (PFS) and overall survival (OS) in children and young adults with relapsed or refractory LCH treated with tovorafenib (DAY101) for up to 1 year.
EXPLORATORY OBJECTIVES:
- To determine potential role of pathogenic tumor mutation in response to tovorafenib (DAY101), and to evaluate changes in bone marrow and peripheral blood cell populations carrying pathogenic mutations in response to tovorafenib (DAY101) therapy.
Ia. To define somatic mutations in LCH lesion biopsies; Ib. To determine impact of tovorafenib (DAY101) on bone marrow and blood BRAFV600E+ mononuclear cells; Ic. To determine impact of tovorafenib (DAY101) on cerebral spinal fluid and disease response; Id. To determine the performance of standardized immunohistochemical analysis of LCH lesion biopsies.
II. To compare performance of LCH-specific response criteria to Response Evaluation Criteria in Solid Tumors (RECIST) criteria.
III. To describe the pharmacokinetics of tovorafenib (DAY101) when administered to pediatric and young adult patients with relapse or refractory LCH.
OUTLINE: This is a dose escalation study of tovorafenib followed by a phase II trial.
Patients receive tovorafenib orally (PO) once weekly (QW) on days 1, 8, 15, and 22 of each cycle. Cycles repeat every 28 days for 12 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo multi-gated acquisition (MUGA) or echocardiography (ECHO) scans, and fludeoxyglucose F-18 (FDG)-positron emission tomography (PET) or computed tomography (CT) throughout the trial, and collection of blood and urine samples on study. Patients with suspicion of bone marrow and/or central nervous system involvement will also undergo bone marrow biopsy and aspiration and lumbar puncture on study and during follow up.
After completion of study treatment, patients are followed up at 28 days, months 3, 6, 9, and 12, and then at 2 years post cycle 12.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Sequential
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Treatment (tovorafenib) | Experimental | Procedure: Biospecimen Collection, Procedure: Bone Marrow Aspiration, Procedure: Bone Marrow Biopsy, Procedure: Computed Tomography, Procedure: Echocardiography Test, Procedure: FDG-Positron Emission Tomography and Computed Tomography Scan, Procedure: Lumbar Puncture, Procedure: Multigated Acquisition Scan, Drug: TovorafenibPatients receive tovorafenib PO QW on days 1, 8, 15, and 22 of each cycle. Cycles repeat every 28 days for 12 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo MUGA or ECHO scans, and FDG-PET or CT throughout the trial, and collection of blood and urine samples on study. Patients with suspicion of bone marrow and/or central nervous system involvement will also undergo bone marrow biopsy and aspiration and lumbar puncture on study and during follow up. |
Who may qualify
- Ages
- 180 days to 22 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult
Key inclusion criteria (50 listed)
- 180 days- < 22 years (at time of study enrollment)
- Patient must have a body surface area of ≥ 0.3 m^2
- Patients with progressive, relapsed, or recurrent LCH with measurable disease at study entry
- Participant must be able to take an enteral dose and formulation of medication. Study medication is only available as an oral suspension or tablet, which may be taken by mouth or other enteral route such as nasogastric, jejunostomy, or gastric tube
- Karnofsky >= 50% for patients > 16 years of age and Lansky >= 50% for patients =< 16 years of age
Key exclusion criteria (19 listed)
- LCH arising along with other hematologic malignancy (e.g. mixed LCH with acute lymphoblastic leukemia) or any history of non-histiocytic malignancy
- Disease scenarios as below will be excluded
- Patients with activating mutations in MAP2K1 are not eligible for this study due to drug target specificity. Mutation status will be submitted to study team within 7 days of enrollment
- Refractory nausea and vomiting, malabsorption, or external biliary shunt that would preclude adequate absorption of tovorafenib (DAY101)
- Uncontrolled systemic bacterial, viral, or fungal infection
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Biospecimen CollectionAlso: Biological Sample Collection, Biospecimen Collected, Sample Collection, Specimen CollectionUndergo collection of blood and urine samples | Procedure or surgery | Treatment (tovorafenib) |
| Bone Marrow AspirationUndergo bone marrow aspiration | Procedure or surgery | Treatment (tovorafenib) |
| Bone Marrow BiopsyAlso: Biopsy of Bone Marrow, Biopsy, Bone MarrowUndergo bone marrow biopsy | Procedure or surgery | Treatment (tovorafenib) |
| Computed TomographyAlso: CAT, CAT Scan, Computed Axial Tomography, Computerized Axial TomographyUndergo CT | Procedure or surgery | Treatment (tovorafenib) |
| Echocardiography TestAlso: EC, EchocardiographyUndergo ECHO | Procedure or surgery | Treatment (tovorafenib) |
| FDG-Positron Emission Tomography and Computed Tomography ScanAlso: FDG PET/CTUndergo FDG-PET imaging | Procedure or surgery | Treatment (tovorafenib) |
| Lumbar PunctureAlso: LP, Spinal TapUndergo lumbar puncture | Procedure or surgery | Treatment (tovorafenib) |
| Multigated Acquisition ScanAlso: Blood Pool Scan, Equilibrium Radionuclide Angiography, Gated Blood Pool Imaging, Gated Heart Pool ScanUndergo MUGA | Procedure or surgery | Treatment (tovorafenib) |
| TovorafenibAlso: BIIB 024, BIIB-024, BIIB024, DAY 101Given PO | Drug | Treatment (tovorafenib) |
Primary outcome
Frequency of dose limiting toxicity (dose finding phase)
Time frame: Up to 28 days
Will be analyzed descriptively.
Overall response rate (phase II)
Time frame: After 2 cycles of therapy (each cycle is 28 days)
Will be assessed using minimax Simon's two-stage designs in each of the BRAFV600E and non-BRAFV600E cohorts separately. The two arms will not be directly compared. The 95% confidence interval for the overall response rate will be adjusted for the two-stage design.
4 secondary outcomes
Event free survival rate
Time frame: At 1 and 2 years
Progression free survival rate
Time frame: Up to 2 years
Duration of response rate
Time frame: After 12 months of therapy. From the scan confirming the complete response or partial response (whichever is recorded first), until the first occurrence of recurrent or progressive disease or death (event) or last known status on trial
Overall survival rate
Time frame: Up to 2 years
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 30 Oct 2026.
- Individual participant dataSharing planned: Yes. NCI is committed to sharing data in accordance with NIH policy. For more details on how clinical trial data is shared, access the link to the NIH data sharing policy page.
Related trials for Recurrent Langerhans Cell Histiocytosis
Not yet recruitingObservational study
Long Term Safety Study in Patients With HLH/MAS in Still's Disease Exposed to Gamifant.
Hemophagocytic Lymphohistiocytosis (HLH), Macrophage Activation Syndrome (MAS)
Active, not recruitingPhase 2
Ensartinib in Treating Patients With Relapsed or Refractory Advanced Solid Tumors, Non-Hodgkin Lymphoma, or Histiocytic Disorders With ALK or ROS1 Genomic Alterations (A Pediatric MATCH Treatment Trial)
Advanced Malignant Solid Neoplasm, Malignant Solid Neoplasm
RecruitingObservational study
Rare Disease Patient Registry & Natural History Study - Coordination of Rare Diseases at Sanford
Rare Disorders, Undiagnosed Disorders
Enrolling by invitationPhase 1/2
A Single-Arm,Multicenter Phase, Phase II Clinical Trial of Adebrelimab Combined With Trametinib in the Treatment of Refractory Recurrent Langerhans Cell Histiocytosis in Children and Adolescents
Histiocytosis,Langerhans-Cell
Active, not recruitingPhase 2
Tipifarnib for the Treatment of Advanced Solid Tumors, Lymphoma, or Histiocytic Disorders With HRAS Gene Alterations, a Pediatric MATCH Treatment Trial
Malignant Solid Neoplasm, Recurrent Adrenal Gland Pheochromocytoma
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Carl E Allen principal investigator
Children's Oncology Group
123 sites in 3 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing Biospecimen Collection, Bone Marrow Aspiration and Bone Marrow Biopsy in people with Recurrent Langerhans Cell Histiocytosis and Refractory Langerhans Cell Histiocytosis, run by National Cancer Institute (NCI) at 123 sites in 3 countries.
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 50 inclusion and 19 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 30 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 123 sites in United States, Canada, Australia. 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.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
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?
Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Frequency of dose limiting toxicity (dose finding phase) (time frame: Up to 28 days). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 30 Oct 2026.