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ClinicalTrials.gov public records Last synced Oct 2, 2026, 3:24 PM EDT

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Showing 1–24 of 41 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Hemophagocytic Lymphohistiocytoses Clear all
Recruiting No phase listed Observational

Hemophagocytic Lymphohistiocytosis (HLH) Evaluation and Research of Clinical, ImmUnoLogic and TranscriptomE Study

NCT06339177
View directory record Official record
Conditions
Lymphohistiocytosis, Hemophagocytic, Secondary Hemophagocytic Lymphohistiocytosis, Macrophage Activation Syndrome, Hyperinflammatory Syndromes
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 120 Years
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2031
U.S. locations
2
States / cities
Bethesda, Maryland • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Oct 2, 2026, 3:24 PM EDT
Completed Phase 3 Interventional Results available

Study to Assess the Efficacy and Safety of Emapalumab in Primary Haemophagocytic Lymphohistiocytosis

NCT03312751
View directory record Official record
Conditions
Primary Hemophagocytic Lymphohistiocytosis
Interventions
Emapalumab
Drug
Lead sponsor
Swedish Orphan Biovitrum
Industry
Eligibility
Up to 18 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
10
States / cities
Phoenix, Arizona • Los Angeles, California • Aurora, Colorado + 7 more
Source: ClinicalTrials.gov public record
Updated Mar 12, 2024 · Synced Oct 2, 2026, 3:24 PM EDT
Completed Phase 2 Interventional Results available

A Study to Investigate the Safety and Efficacy of Emapalumab, an Anti-IFN-gamma mAb in Patients With Systemic Juvenile Idiopathic Arthritis (sJIA) or Adult-onset Still's Disease (AOSD) Developing Macrophage Activation Syndrome/Secondary HLH (MAS/sHLH)

NCT03311854
View directory record Official record
Conditions
Macrophage Activation Syndrome, Lymphohistiocytosis, Hemophagocytic, Arthritis, Juvenile, Adult Onset Still Disease
Interventions
Emapalumab
Drug
Lead sponsor
Swedish Orphan Biovitrum
Industry
Eligibility
0 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated May 17, 2022 · Synced Oct 2, 2026, 3:24 PM EDT
Terminated Phase 2Phase 3 Interventional Results available

A Study to Evaluate the Efficacy, Safety and Pharmacokinetics of Emapalumab in Adult Patients With HLH

NCT03985423
View directory record Official record
Conditions
Hemophagocytic Lymphohistiocytoses
Interventions
Emapalumab-Lzsg
Drug
Lead sponsor
Swedish Orphan Biovitrum
Industry
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 6, 2023 · Synced Oct 2, 2026, 3:24 PM EDT
Active, not recruiting Phase 1Phase 2 Interventional

Use Of A Response-Adapted Ruxolitinib-Containing Regimen For The Treatment Of Hemophagocytic Lymphohistiocytosis

NCT04551131
View directory record Official record
Conditions
Hemophagocytic Lymphohistiocytosis
Interventions
Ruxolitinib, Dexamethasone, Etoposide
Drug
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
6 Weeks to 22 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
13
States / cities
Phoenix, Arizona • Orange, California • San Francisco, California + 10 more
Source: ClinicalTrials.gov public record
Updated Apr 24, 2026 · Synced Oct 2, 2026, 3:24 PM EDT
Active, not recruiting No phase listed Observational

Retrospective Study of Immunotherapy Related Toxicities and Factors Impacting Outcomes in Children and Adults With Cancer

NCT03827343
View directory record Official record
Conditions
Macrophage Activation Syndrome, Primary Hemophagocytic Lymphohistiocytosis
Interventions
Not listed
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
1 Month to 120 Years
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 2, 2026 · Synced Oct 2, 2026, 3:24 PM EDT
Completed Phase 2 Interventional Results available

Treosulfan and Fludarabine Phosphate Before Donor Stem Cell Transplant in Treating Patients With Nonmalignant Inherited Disorders

NCT00919503
View directory record Official record
Conditions
Non-Neoplastic Hematologic and Lymphocytic Disorder
Interventions
Allogeneic Bone Marrow Transplantation, Anti-Thymocyte Globulin, Cyclosporine, Fludarabine Phosphate, Laboratory Biomarker Analysis, Methotrexate, Mycophenolate Mofetil, Peripheral Blood Stem Cell Transplantation, Tacrolimus, Total-Body Irradiation, Treosulfan, Umbilical Cord Blood Transplantation
Procedure · Biological · Drug + 2 more
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
Up to 49 Years
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2020
U.S. locations
6
States / cities
Aurora, Colorado • Portland, Oregon • Nashville, Tennessee + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 13, 2021 · Synced Oct 2, 2026, 3:24 PM EDT
Recruiting Phase 2 Interventional

Reduced Intensity Conditioning for Non-Malignant Disorders Undergoing UCBT, BMT or PBSCT

NCT01962415
View directory record Official record
Conditions
Primary Immunodeficiency (PID), Congenital Bone Marrow Failure Syndromes, Inherited Metabolic Disorders (IMD), Hereditary Anemias, Inflammatory Conditions, Systemic Juvenile Idiopathic Arthritis (sJIA), Juvenile Rheumatoid Arthritis (JRA)
Interventions
Hydroxyurea, Alemtuzumab, Fludarabine, Melphalan, Thiotepa
Drug
Lead sponsor
Paul Szabolcs
Other
Eligibility
2 Months to 55 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2027
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 15, 2025 · Synced Oct 2, 2026, 3:24 PM EDT
Recruiting Phase 1 Interventional

Ruxolitinib for Immune Effector Cell Associated Hemophagocytic Lymphohistiocytosis-like Syndrome (RISE)

NCT07424222
View directory record Official record
Conditions
Immune Effector Associated Hemophagocytic Lymphohistiocytosis-like Syndrome (IEC-HS)
Interventions
Ruxolitinib
Drug
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years to 99 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Oct 2, 2026, 3:24 PM EDT
Recruiting No phase listed Observational

Describing Treatment Outcomes and Responses in Lymphoma-associated Hemophagocytic Lymphohistiocytosis

NCT05898477
View directory record Official record
Conditions
Lymphoma, Hemophagocytic Lymphohistiocytoses
Interventions
Not listed
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
Not listed
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jan 22, 2026 · Synced Oct 2, 2026, 3:24 PM EDT
Recruiting No phase listed Observational

INTO-HLH: A Disease Registry for Patients With Hemophagocytic Lymphohistiocytosis (HLH)

NCT05277272
View directory record Official record
Conditions
Hemophagocytic Lymphohistiocytoses
Interventions
Not listed
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
Not listed
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 24, 2026 · Synced Oct 2, 2026, 3:24 PM EDT
Terminated Phase 1 Interventional Results available

Safety Study of Gene Modified Donor T Cell Infusion After Stem Cell Transplant for Non-Malignant Diseases

NCT02231710
View directory record Official record
Conditions
Primary Immune Deficiency Disorders, Hemophagocytic Lymphohistiocytosis, Inherited Bone Marrow Failure Syndrome, Hemoglobinopathies, Metabolic Disorders
Interventions
BPX-501 and Rimiducid
Biological
Lead sponsor
Bellicum Pharmaceuticals
Industry
Eligibility
4 Months to 55 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Mar 25, 2024 · Synced Oct 2, 2026, 3:24 PM EDT
Completed Phase 2 Interventional Results available

Reduced Intensity Conditioning for Hemophagocytic Syndromes or Selected Primary Immune Deficiencies (BMT CTN 1204)

NCT01998633
View directory record Official record
Conditions
Hemophagocytic Lymphohistiocytosis, Chronic Active Epstein-Barr Virus Infection, Chronic Granulomatous Disease, HIGM-1, Leukocyte Adhesion Deficiency, IPEX
Interventions
Hematopoietic Stem Cell Transplant
Biological
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
4 Months to 45 Years
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
19
States / cities
Birmingham, Alabama • Washington D.C., District of Columbia • Atlanta, Georgia + 16 more
Source: ClinicalTrials.gov public record
Updated Dec 8, 2022 · Synced Oct 2, 2026, 3:24 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Study to Investigate Safety, Efficacy of an Anti-IFNγ mAb in Children With Primary Haemophagocytic Lymphohistiocytosis

NCT01818492
View directory record Official record
Conditions
Primary Haemophagocytic Lymphohistiocytosis
Interventions
NI-0501
Biological
Lead sponsor
Swedish Orphan Biovitrum
Industry
Eligibility
Up to 18 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
8
States / cities
Aurora, Colorado • Wilmington, Delaware • Atlanta, Georgia + 5 more
Source: ClinicalTrials.gov public record
Updated Feb 21, 2023 · Synced Oct 2, 2026, 3:24 PM EDT
Completed Phase 2Phase 3 Interventional Results available

A Study for Long-term Follow-up of Hemophagocytic Lymphohistiocytosis (HLH) Participants Who Received Treatment With Emapalumab (NI-0501), an Anti-interferon Gamma Monoclonal Antibody

NCT02069899
View directory record Official record
Conditions
Hemophagocytic Lymphohistiocytosis
Interventions
Emapalumab
Drug
Lead sponsor
Swedish Orphan Biovitrum
Industry
Eligibility
Not listed
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2021
U.S. locations
5
States / cities
Grand Rapids, Michigan • Chapel Hill, North Carolina • Cincinnati, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 28, 2022 · Synced Oct 2, 2026, 3:24 PM EDT
Completed Phase 1 Interventional

Bone Marrow Transplant With Abatacept for Non-Malignant Diseases

NCT01917708
View directory record Official record
Conditions
Hurler Syndrome, Fanconi Anemia, Glanzmann Thrombasthenia, Wiskott-Aldrich Syndrome, Chronic Granulomatous Disease, Severe Congenital Neutropenia, Leukocyte Adhesion Deficiency, Shwachman-Diamond Syndrome, Diamond-Blackfan Anemia, Dyskeratosis-congenita, Chediak-Higashi Syndrome, Severe Aplastic Anemia, Thalassemia Major, Hemophagocytic Lymphohistiocytosis, Sickle Cell Disease
Interventions
Abatacept
Drug
Lead sponsor
Emory University
Other
Eligibility
Up to 21 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Dec 26, 2019 · Synced Oct 2, 2026, 3:24 PM EDT
Completed No phase listed Observational Results available

Evaluation of IFNγ and Inflammatory Mediators in Patients With Malignancy-Associated Hemophagocytic Lymphohistiocytosis

NCT03259230
View directory record Official record
Conditions
Hemophagocytic Lymphohistiocytosis
Interventions
Blood Draws, Data Collection
Other
Lead sponsor
Swedish Orphan Biovitrum
Industry
Eligibility
Not listed
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 2, 2026, 3:24 PM EDT
Completed Phase 2 Interventional Results available

Hybrid Immunotherapy for Hemophagocytic LymphoHistiocytosis

NCT01104025
View directory record Official record
Conditions
Hemophagocytic Lymphohistiocytosis
Interventions
ATG, rabbit, Etoposide, Methotrexate, hydrocortisone, Dexamethasone
Drug
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
Up to 18 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
14
States / cities
Phoenix, Arizona • San Francisco, California • Stanford, California + 11 more
Source: ClinicalTrials.gov public record
Updated Oct 19, 2020 · Synced Oct 2, 2026, 3:24 PM EDT
Active, not recruiting Phase 2 Interventional

Immune Disorder HSCT Protocol

NCT01821781
View directory record Official record
Conditions
Immune Deficiency Disorders, Severe Combined Immunodeficiency, Chronic Granulomatous Disease, X-linked Agammaglobulinemia, Wiskott-Aldrich Syndrome, Hyper-IgM, DiGeorge Syndrome, Chediak-Higashi Syndrome, Common Variable Immune Deficiency, Immune Dysregulatory Disorders, Hemophagocytic Lymphohistiocytosis, IPEX, Autoimmune Lymphoproliferative Syndrome, X-linked Lymphoproliferative Syndrome
Interventions
Transplant preparative regimen of alemtuzumab, fludarabine, thiotepa, and melphalan
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
Up to 21 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2026
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 19, 2026 · Synced Oct 2, 2026, 3:24 PM EDT
Recruiting No phase listed Observational

Data Collection Study of Patients With Non-Malignant Disorders Undergoing UCBT, BMT or PBSCT With RIC

NCT04528355
View directory record Official record
Conditions
Primary Immunodeficiency (PID), Congenital Bone Marrow Failure Syndromes, Inherited Metabolic Disorders (IMD), Hereditary Anemias, Inflammatory Conditions
Interventions
data collection
Drug
Lead sponsor
Paul Szabolcs
Other
Eligibility
2 Months to 60 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2028
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 13, 2026 · Synced Oct 2, 2026, 3:24 PM EDT
Active, not recruiting Not applicable Interventional

Allogeneic Hematopoietic Stem Cell Transplant for Patients With Primary Immune Deficiencies

NCT01652092
View directory record Official record
Conditions
SCID, Omenn's Syndrome, Reticular Dysgenesis, Wiskott-Aldrich Syndrome, Bare Lymphocyte Syndrome, Common Variable Immunodeficiency, Chronic Granulomatous Disease, CD40 Ligand Deficiency, Hyper IgM Syndrome, X-linked Lymphoproliferative Disease, Hemophagocytic Lymphohistiocytosis, Griscelli Syndrome, Chediak-Higashi Syndrome, Langerhan's Cell Histiocytosis
Interventions
Alemtuzumab 0.3 mg, Cyclophosphamide, Busulfan, Stem Cell Transplantation, Fludarabine phosphate 40 mg, Melphalan, Alemtuzumab 0.2 mg, Fludarabine phosphate 30 mg, MESNA
Drug · Biological
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
Up to 50 Years
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2026
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 17, 2026 · Synced Oct 2, 2026, 3:24 PM EDT
Not yet recruiting Phase 2 Interventional

Naive T Cell Deplete Grafts for GVHD Prevention in Non-Malignant Diseases

NCT07660783
View directory record Official record
Conditions
Bone Marrow Failure, Hemoglobinopathies, Primary Immune Deficiency (PID), Autoimmune Cytopenia, Immune Dysregulation, Hemophagocytic Lymphohistiocytosis (HLH), Non Malignant Disorders
Interventions
ALLOGENEIC CD34+ ENRICHED AND CD45RA- DEPLETED PBSCs
Biological
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
6 Months to 50 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2035
U.S. locations
2
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Oct 2, 2026, 3:24 PM EDT
Completed Phase 2 Interventional Results available

A Pilot Study of Ruxolitinib in Secondary Hemophagocytic Syndrome

NCT02400463
View directory record Official record
Conditions
Hemophagocytic Syndrome (HPS)
Interventions
Ruxolitinib
Drug
Lead sponsor
University of Michigan Rogel Cancer Center
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 25, 2021 · Synced Oct 2, 2026, 3:24 PM EDT
Terminated Not applicable Interventional

Allogeneic Bone Marrow Transplantation in Patients With Primary Immunodeficiencies

NCT00006054
View directory record Official record
Conditions
Immunologic Deficiency Syndromes, Chediak-Higashi Syndrome, Common Variable Immunodeficiency, Graft Versus Host Disease, X-Linked Lymphoproliferative Syndrome, Familial Erythrophagocytic Lymphohistiocytosis, Hemophagocytic Lymphohistiocytosis, X-linked Agammaglobulinemia, Wiskott-Aldrich Syndrome, Chronic Granulomatous Disease, X-linked Hyper IgM Syndrome, Severe Combined Immunodeficiency, Leukocyte Adhesion Deficiency Syndrome, Virus-Associated Hemophagocytic Syndrome
Interventions
anti-thymocyte globulin, busulfan, cyclophosphamide, cyclosporine, etoposide, methotrexate, methylprednisolone, prednisone, Allogeneic Bone Marrow Transplantation
Drug · Procedure
Lead sponsor
Fairview University Medical Center
Other
Eligibility
Up to 35 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2002
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 15, 2009 · Synced Oct 2, 2026, 3:24 PM EDT