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Showing 1–24 of 41 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Hemophagocytic Lymphohistiocytoses Clear all
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 7, 2022 · Synced Jul 21, 2026, 6:08 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 16, 2022 · Synced Jul 21, 2026, 6:08 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 12, 2021 · Synced Jul 21, 2026, 6:08 PM EDT
Terminated Phase 2Phase 3 Interventional Results available

T-Cell Depletion and Stem Cell Transplant for Immune Deficiencies and Histiocytic Disorders

NCT00176826
View directory record Official record
Conditions
Hemophagocytic Lymphohistiocytosis, X-Linked Lymphoproliferative Disorders, Chediak-Higashi Syndrome, Griscelli Syndrome, Immunologic Diseases, Langerhans-Cell Histiocytosis, Hematologic Diseases
Interventions
Stem Cell Transplant, Myeloablative conditioning regimen
Procedure · Drug
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
Up to 55 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2015
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 22, 2018 · Synced Jul 21, 2026, 6:08 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 21, 2026 · Synced Jul 21, 2026, 6:08 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 25, 2019 · Synced Jul 21, 2026, 6:08 PM EDT
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 Mar 19, 2026 · Synced Jul 21, 2026, 6:08 PM EDT
Terminated Phase 2 Interventional Results available

Etoposide in Patients With COVID-19 Infection

NCT04356690
View directory record Official record
Conditions
COVID-19
Interventions
Etoposide
Drug
Lead sponsor
Boston Medical Center
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 14, 2023 · Synced Jul 21, 2026, 6:08 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 11, 2024 · Synced Jul 21, 2026, 6:08 PM EDT
Active, not recruiting Phase 1 Interventional

CASPALLO: Allodepleted T Cells Transduced With Inducible Caspase 9 Suicide Gene

NCT00710892
View directory record Official record
Conditions
Acute Lymphoblastic Leukemia, Non-Hodgkin's Lymphoma, Myelodysplastic Syndrome, Chronic Myeloid Leukemia
Interventions
Allodepleted T Cells
Biological
Lead sponsor
Baylor College of Medicine
Other
Eligibility
Up to 65 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2027
U.S. locations
2
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Jul 21, 2026, 6:08 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 23, 2026 · Synced Jul 21, 2026, 6:08 PM EDT
Recruiting Phase 2Phase 3 Interventional

Open-label Study of ELA026 in Participants With Secondary Hemophagocytic Lymphohistiocytosis (sHLH)

NCT05416307
View directory record Official record
Conditions
Secondary Hemophagocytic Lymphohistiocytosis (sHLH)
Interventions
ELA026
Drug
Lead sponsor
Electra Therapeutics Inc.
Industry
Eligibility
6 Years and older
Enrollment
156 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2029
U.S. locations
18
States / cities
Birmingham, Alabama • Phoenix, Arizona • Los Angeles, California + 10 more
Source: ClinicalTrials.gov public record
Updated May 25, 2026 · Synced Jul 21, 2026, 6:08 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 14, 2009 · Synced Jul 21, 2026, 6:08 PM EDT
Withdrawn Phase 2 Interventional

Tocilizumab and Hemophagocytic Lymphohistiocytosis (HLH)

NCT02007239
View directory record Official record
Conditions
Hemophagocytic Lymphohistiocytosis
Interventions
tocilizumab
Drug
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
3 Months to 25 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 27, 2022 · Synced Jul 21, 2026, 6:08 PM EDT
Completed Phase 3 Interventional Results available

Evaluate Efficacy, Safety and Tolerability, PK and PD of Emapalumab in Children and Adults With MAS in Still's or SLE

NCT05001737
View directory record Official record
Conditions
Macrophage Activation Syndrome, Secondary Hemophagocytic Lymphohistiocytosis, Still Disease, Systemic Lupus Erythematosus, SJIA, AOSD, MAS
Interventions
Emapalumab
Drug
Lead sponsor
Swedish Orphan Biovitrum
Industry
Eligibility
6 Months to 80 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
9
States / cities
Birmingham, Alabama • Los Angeles, California • Gainesville, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Feb 18, 2026 · Synced Jul 21, 2026, 6:08 PM EDT
Completed Phase 2 Interventional Results available

Stem Cell Transplant for Immunologic or Histiocytic Disorders

NCT00176865
View directory record Official record
Conditions
Hemophagocytic Lymphohistiocytosis, X-Linked Lymphoproliferative Disorders, Chediak-Higashi Syndrome, Griscelli Syndrome, Immunologic Deficiency Syndromes, Langerhans-Cell Histiocytosis
Interventions
Stem Cell Transplant, Fludarabine, Melphalan, Anti-thymocyte globulin (ATG), Campath 1H, Cyclosporin A, Mycophenolate mofetil, Intravenous immunoglobulin (IVIG)
Procedure · Drug
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
Up to 35 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2014
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 27, 2017 · Synced Jul 21, 2026, 6:08 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 14, 2025 · Synced Jul 21, 2026, 6:08 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 27, 2022 · Synced Jul 21, 2026, 6:08 PM EDT
Active, not recruiting Phase 2 Interventional

Ruxolitinib With De-Intensified HLH-94 for the Treatment of Hemophagocytic Lymphohistiocytosis (HLH)

NCT06160791
View directory record Official record
Conditions
Hemophagocytic Lymphohistiocytoses
Interventions
Ruxolitinib, Etoposide, Dexamethasone, Non-interventional Imaging, Research Biopsy, Biospecimen Collection
Drug · Procedure
Lead sponsor
Jerry Lee, MD, MSc, MPhil
Other
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
4
States / cities
Irvine, California • Sacramento, California • San Diego, California + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Jul 21, 2026, 6:08 PM EDT
Not listed Not applicable Interventional

Pilot Study of Unrelated Donor Hematopoietic Stem Cell Transplantation in Patients With Life Threatening Hemophagocytic Disorders

NCT00006056
View directory record Official record
Conditions
Chediak-Higashi Syndrome, Graft Versus Host Disease, X-Linked Lymphoproliferative Syndrome, Familial Erythrophagocytic Lymphohistiocytosis, Hemophagocytic Lymphohistiocytosis, Virus-Associated Hemophagocytic Syndrome
Interventions
anti-thymocyte globulin, busulfan, cyclophosphamide, cyclosporine, etoposide, filgrastim, methotrexate, allogeneic hematopoietic stem cell transplantation
Drug · Procedure
Lead sponsor
Fairview University Medical Center
Other
Eligibility
0 Years to 55 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2000
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Jul 21, 2026, 6:08 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 5, 2023 · Synced Jul 21, 2026, 6:08 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 18, 2024 · Synced Jul 21, 2026, 6:08 PM EDT
Active, not recruiting Phase 1 Interventional

Administration of Donor T Cells With the Caspase-9 Suicide Gene

NCT01494103
View directory record Official record
Conditions
Acute Lymphoblastic Leukemia, Myelodysplastic Syndrome, Acute Myeloid Leukemia, Chronic Myelogenous Leukemia, Non Hodgkin Lymphoma, Hemophagocytic Lymphohistiocytosis, Familial Hemophagocytic Lymphohistiocytosis, Hemophagocytic Syndrome, Epstein Barr Virus Infection, X-linked Lymphoproliferative Disease
Interventions
iCaspase9-transduced T cells, AP1903
Biological · Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
Not listed
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2029
U.S. locations
2
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Jul 21, 2026, 6:08 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 20, 2023 · Synced Jul 21, 2026, 6:08 PM EDT