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Evaluation of IFNγ and Inflammatory Mediators in Patients With Hemophagocytic Lymphohistiocytosis

An Observational, Multicenter Study to Evaluate Levels of Interferon Gamma (IFNγ) and Other Inflammatory Mediators in Adult Patients With Hemophagocytic Lymphohistiocytosis (A-HLH)

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06047210
Enrollment
14
Registered
2023-09-21
Start date
2016-12-14
Completion date
2019-10-30
Last updated
2024-09-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hemophagocytic Lymphohistiocytoses

Keywords

Hemophagocytic Lymphohistiocytosis, Interferon Gamma, IFNγ, Biomarkers, Inflammatory Markers

Brief summary

This observational study is designed to provide a better understanding of the potential use of interferon gamma (IFNγ) and IFNγ-inducible chemokines as markers of HLH disease activity in adults, and the potential of IFNγ to represent a therapeutic target.

Detailed description

This is a observational study designed to determine the levels of pro-inflammatory markers in adult patients diagnosed with HLH and to assess the relationship between the biomarkers and disease activity in these patients during the HLH course. Inflammatory markers include IFNγ and IFNγ-induced chemokines C-X-C chemokine ligand 9 and C-X-C chemokine ligand 10. In addition to the blood samples for the biomarker analysis, relevant information gathered by the treating physician will be collected in a data collection form. Whenever possible, collection of serum samples for biomarker analysis and relevant information should occur at HLH diagnosis, at regular time intervals during the treatment course (not more than once a week) up to resolution of HLH. Blood samples will also be sent to the study sponsor (NovImmune S.A.) for cytokine testing. Before patient's samples are sent to the sponsor for testing, patient's name and any personal identifying information will be coded to protect participant's privacy.

Interventions

OTHERBlood Draws Data Collection

Sponsors

Brigham and Women's Hospital
CollaboratorOTHER
Harvard Medical School (HMS and HSDM)
CollaboratorOTHER
Swedish Orphan Biovitrum
Lead SponsorINDUSTRY

Study design

Observational model
CASE_CONTROL
Time perspective
OTHER

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients \>=18 years old diagnosed with active HLH as established by the treating physician. * HLH forms of unknown origin or secondary to infections or rheumatologic disorders. * Should the diagnosis of primary HLH or malignancy become apparent after inclusion, the data collected will be analyzed separately as additional cohorts. * The patient must have consented to the use of their clinical data for research purposes at the site.

Exclusion criteria

* Patients with primary HLH (diagnosed by the presence of homozygous mutations in a known HLH causative gene) and secondary HLH due to malignancy are excluded.

Design outcomes

Primary

MeasureTime frameDescription
Mean Serum Concentration of Inflammatory Biomarker - C-X-C Chemokine Ligand 10 (CXCL10)11 monthsSerum samples was collected at various times after HLH diagnosis to determine the concentration of CXCL10.
Mean Serum Concentration of Inflammatory Biomarker - C-X-C Chemokine Ligand 9 (CXCL9)11 monthsSerum samples was collected at various times after HLH diagnosis to determine the concentration of CXCL9.
Mean Serum Concentration of Inflammatory Biomarker - Interferon Gamma (IFNg)11 monthsSerum samples was collected at various times after HLH diagnosis to determine the concentration of IFNg.
Mean Serum Concentration of Inflammatory Biomarker - Interleukin 10 (IL-10)11 monthsSerum samples was collected at various times after HLH diagnosis to determine the concentration of IL-10.
Mean Serum Concentration of Inflammatory Biomarker - Interleukin 1 Beta (IL-1B)11 monthsSerum samples was collected at various times after HLH diagnosis to determine the concentration of IL-1B.
Mean Serum Concentration of Inflammatory Biomarker - Interleukin 6 (IL-6)11 monthsSerum samples was collected at various times after HLH diagnosis to determine the concentration of IL-6.
Mean Serum Concentration of Hemoglobin11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of hemoglobin.
Mean Serum Concentration of Hematocrit11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of hematocrit.
Mean Serum Concentration of Inflammatory Biomarker - Neopterin11 monthsSerum samples was collected at various times after HLH diagnosis to determine the concentration of neopterin.
Mean Serum Concentration of Inflammatory Biomarker - Tumor Necrosis Factor Alpha (TNFa)11 monthsSerum samples was collected at various times after HLH diagnosis to determine the concentration of TNFa.
Mean Serum Concentration of Inflammatory Biomarker - Total Human Interferon Gamma (hIFNg)11 monthsSerum samples was collected at various times after HLH diagnosis to determine the concentration of hIFNg.
Mean Serum Concentration of Inflammatory Biomarker - Soluble CD163 (sCD163)11 monthsSerum samples was collected at various times after HLH diagnosis to determine the concentration of sCD163.
Mean Serum Concentration of Inflammatory Biomarker - Soluble IL-2 Receptor Alpha (sIL2Ra)11 monthsSerum samples was collected at various times after HLH diagnosis to determine the concentration of sIL2Ra.
Mean Serum Concentration of White Blood Cells11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of white blood cells.
Mean Serum Concentration of Red Blood Cells11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of red blood cells.
Mean Serum Concentration of Platelets11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of platelets.
Mean Serum Concentration of Neutrophils11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of neutrophils.
Mean Serum Concentration of Lymphocytes11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of lymphocytes.
Mean Serum Concentration of Monocytes11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of monocytes.
Mean Serum Concentration of Eosinophils11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of eosinophils.
Mean Serum Concentration of Basophils11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of basophils.
Mean Plasma Concentration of D-Dimer11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of D-dimer.
Mean Plasma Concentration of Fibrinogen11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of fibrinogen.
Mean Activated Partial Thromboplastin Time (aPTT)11 monthsBlood samples was collected at various times after HLH diagnosis to determine the aPTT.
Mean Prothrombin Time11 monthsBlood samples was collected at various times after HLH diagnosis to determine the prothrombin time.
Mean Serum Concentration of C-Reactive Protein11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of c-reactive protein.
Mean Serum Concentration of Ferritin11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of ferritin.
Mean Plasma Concentration of Blood Urea Nitrogen11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of blood urea nitrogen.
Mean Serum Concentration of Creatinine11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of creatinine.
Mean Serum Concentration of Albumin11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of albumin.
Mean Serum Concentration of Sodium11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of sodium.
Mean Serum Concentration of Fasting Triglycerides11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of fasting triglycerides.
Mean Serum Concentration of Total Bilirubin11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of total bilirubin.
Mean Serum Concentration of Conjugated Bilirubin11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of conjugated bilirubin.
Mean Serum Concentration of Alanine Aminotransferase11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of alanine aminotransferase.
Mean Serum Concentration of Aspartate Aminotransferase11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of aspartate aminotransferase.
Mean Serum Concentration of Alkaline Phosphatase11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of alkaline phosphatase.
Mean Serum Concentration of Lactate Dehydrogenase11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of lactate dehydrogenase.
Mean Serum Concentration of Immunoglobulin G (IgG)11 monthsBlood samples was collected at various times after HLH diagnosis to determine the concentration of IgG.

Countries

United States

Participant flow

Recruitment details

This Phase 4 observational study was conducted in adult patients diagnosed with hemophagocytic lymphohistiocytosis (A-HLH) at a single center in the United States of America.

Pre-assignment details

A total of 14 patients were enrolled in the study.

Participants by arm

ArmCount
A-HLH Patients
Patients diagnosed with A-HLH.
10
M-HLH Patients
Patients diagnosed with HLH in the context of a malignancy.
4
Total14

Baseline characteristics

CharacteristicA-HLH PatientsM-HLH PatientsTotal
Age, Continuous44.8 years
STANDARD_DEVIATION 12.4
54.3 years
STANDARD_DEVIATION 4.9
47.5 years
STANDARD_DEVIATION 11.5
Race/Ethnicity, Customized
African descent
1 Participants0 Participants1 Participants
Race/Ethnicity, Customized
Caucasian
8 Participants3 Participants11 Participants
Race/Ethnicity, Customized
Mixed/multi-racial
1 Participants0 Participants1 Participants
Race/Ethnicity, Customized
Other
0 Participants1 Participants1 Participants
Sex: Female, Male
Female
4 Participants2 Participants6 Participants
Sex: Female, Male
Male
6 Participants2 Participants8 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 00 / 0
other
Total, other adverse events
0 / 00 / 0
serious
Total, serious adverse events
0 / 00 / 0

Outcome results

Primary

Mean Activated Partial Thromboplastin Time (aPTT)

Blood samples was collected at various times after HLH diagnosis to determine the aPTT.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Activated Partial Thromboplastin Time (aPTT)27.98 secondsStandard Deviation 8.21
Primary

Mean Plasma Concentration of Blood Urea Nitrogen

Blood samples was collected at various times after HLH diagnosis to determine the concentration of blood urea nitrogen.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Plasma Concentration of Blood Urea Nitrogen17.3 mg/dLStandard Deviation 8.3
M-HLH PatientsMean Plasma Concentration of Blood Urea Nitrogen50.2 mg/dLStandard Deviation 37.3
Primary

Mean Plasma Concentration of D-Dimer

Blood samples was collected at various times after HLH diagnosis to determine the concentration of D-dimer.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)
A-HLH PatientsMean Plasma Concentration of D-Dimer2300.0 microgram (mcg)/mL
Primary

Mean Plasma Concentration of Fibrinogen

Blood samples was collected at various times after HLH diagnosis to determine the concentration of fibrinogen.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Plasma Concentration of Fibrinogen306.8 milligram (mg)/dLStandard Deviation 145.7
M-HLH PatientsMean Plasma Concentration of Fibrinogen172.5 milligram (mg)/dLStandard Deviation 83
Primary

Mean Prothrombin Time

Blood samples was collected at various times after HLH diagnosis to determine the prothrombin time.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Prothrombin Time13.81 secondsStandard Deviation 0.9
M-HLH PatientsMean Prothrombin Time16.75 secondsStandard Deviation 4.6
Primary

Mean Serum Concentration of Alanine Aminotransferase

Blood samples was collected at various times after HLH diagnosis to determine the concentration of alanine aminotransferase.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Alanine Aminotransferase93.2 international units (IU)/LStandard Deviation 145.6
M-HLH PatientsMean Serum Concentration of Alanine Aminotransferase54.8 international units (IU)/LStandard Deviation 35.1
Primary

Mean Serum Concentration of Albumin

Blood samples was collected at various times after HLH diagnosis to determine the concentration of albumin.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Albumin3.68 gram/dLStandard Deviation 0.55
M-HLH PatientsMean Serum Concentration of Albumin3.21 gram/dLStandard Deviation 0.87
Primary

Mean Serum Concentration of Alkaline Phosphatase

Blood samples was collected at various times after HLH diagnosis to determine the concentration of alkaline phosphatase.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Alkaline Phosphatase121.1 IU/LStandard Deviation 98.8
M-HLH PatientsMean Serum Concentration of Alkaline Phosphatase258.2 IU/LStandard Deviation 188.5
Primary

Mean Serum Concentration of Aspartate Aminotransferase

Blood samples was collected at various times after HLH diagnosis to determine the concentration of aspartate aminotransferase.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Aspartate Aminotransferase66.0 IU/LStandard Deviation 105.8
M-HLH PatientsMean Serum Concentration of Aspartate Aminotransferase48.6 IU/LStandard Deviation 35.4
Primary

Mean Serum Concentration of Basophils

Blood samples was collected at various times after HLH diagnosis to determine the concentration of basophils.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Basophils0.181 cells*10^3/mcLStandard Deviation 0.516
M-HLH PatientsMean Serum Concentration of Basophils0.222 cells*10^3/mcLStandard Deviation 0.399
Primary

Mean Serum Concentration of Conjugated Bilirubin

Blood samples was collected at various times after HLH diagnosis to determine the concentration of conjugated bilirubin.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Conjugated Bilirubin0.25 mg/dLStandard Deviation 0.31
M-HLH PatientsMean Serum Concentration of Conjugated Bilirubin12.80 mg/dLStandard Deviation 1.13
Primary

Mean Serum Concentration of C-Reactive Protein

Blood samples was collected at various times after HLH diagnosis to determine the concentration of c-reactive protein.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of C-Reactive Protein27.97 mg/dLStandard Deviation 31.13
M-HLH PatientsMean Serum Concentration of C-Reactive Protein13.35 mg/dLStandard Deviation 12.06
Primary

Mean Serum Concentration of Creatinine

Blood samples was collected at various times after HLH diagnosis to determine the concentration of creatinine.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Creatinine0.768 mg/dLStandard Deviation 0.293
M-HLH PatientsMean Serum Concentration of Creatinine1.449 mg/dLStandard Deviation 0.748
Primary

Mean Serum Concentration of Eosinophils

Blood samples was collected at various times after HLH diagnosis to determine the concentration of eosinophils.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Eosinophils0.252 cells*10^3/mcLStandard Deviation 0.707
M-HLH PatientsMean Serum Concentration of Eosinophils1.002 cells*10^3/mcLStandard Deviation 2.449
Primary

Mean Serum Concentration of Fasting Triglycerides

Blood samples was collected at various times after HLH diagnosis to determine the concentration of fasting triglycerides.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)
M-HLH PatientsMean Serum Concentration of Fasting Triglycerides645.0 mg/dL
Primary

Mean Serum Concentration of Ferritin

Blood samples was collected at various times after HLH diagnosis to determine the concentration of ferritin.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Ferritin5050.2273 ng/mLStandard Deviation 5302.9183
M-HLH PatientsMean Serum Concentration of Ferritin24331.4517 ng/mLStandard Deviation 38189.6158
Primary

Mean Serum Concentration of Hematocrit

Blood samples was collected at various times after HLH diagnosis to determine the concentration of hematocrit.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Hematocrit30.03 percentage of volume of red cellsStandard Deviation 5.75
M-HLH PatientsMean Serum Concentration of Hematocrit28.55 percentage of volume of red cellsStandard Deviation 3.55
Primary

Mean Serum Concentration of Hemoglobin

Blood samples was collected at various times after HLH diagnosis to determine the concentration of hemoglobin.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Hemoglobin10.11 gram/deciliter (g/dL)Standard Deviation 1.93
M-HLH PatientsMean Serum Concentration of Hemoglobin9.83 gram/deciliter (g/dL)Standard Deviation 1.09
Primary

Mean Serum Concentration of Immunoglobulin G (IgG)

Blood samples was collected at various times after HLH diagnosis to determine the concentration of IgG.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Immunoglobulin G (IgG)763.6 mg/dLStandard Deviation 579.3
M-HLH PatientsMean Serum Concentration of Immunoglobulin G (IgG)996.0 mg/dL
Primary

Mean Serum Concentration of Inflammatory Biomarker - C-X-C Chemokine Ligand 10 (CXCL10)

Serum samples was collected at various times after HLH diagnosis to determine the concentration of CXCL10.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Inflammatory Biomarker - C-X-C Chemokine Ligand 10 (CXCL10)2079.286 picogram/milliliter (pg/mL)Standard Deviation 2659.228
M-HLH PatientsMean Serum Concentration of Inflammatory Biomarker - C-X-C Chemokine Ligand 10 (CXCL10)15197.143 picogram/milliliter (pg/mL)Standard Deviation 21288.948
Primary

Mean Serum Concentration of Inflammatory Biomarker - C-X-C Chemokine Ligand 9 (CXCL9)

Serum samples was collected at various times after HLH diagnosis to determine the concentration of CXCL9.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Inflammatory Biomarker - C-X-C Chemokine Ligand 9 (CXCL9)4474.685 pg/mLStandard Deviation 10207.638
M-HLH PatientsMean Serum Concentration of Inflammatory Biomarker - C-X-C Chemokine Ligand 9 (CXCL9)6602.853 pg/mLStandard Deviation 7777.846
Primary

Mean Serum Concentration of Inflammatory Biomarker - Interferon Gamma (IFNg)

Serum samples was collected at various times after HLH diagnosis to determine the concentration of IFNg.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Inflammatory Biomarker - Interferon Gamma (IFNg)81.782 pg/mLStandard Deviation 140.87
M-HLH PatientsMean Serum Concentration of Inflammatory Biomarker - Interferon Gamma (IFNg)809.810 pg/mLStandard Deviation 769.433
Primary

Mean Serum Concentration of Inflammatory Biomarker - Interleukin 10 (IL-10)

Serum samples was collected at various times after HLH diagnosis to determine the concentration of IL-10.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Inflammatory Biomarker - Interleukin 10 (IL-10)24.157 pg/mLStandard Deviation 87.64
M-HLH PatientsMean Serum Concentration of Inflammatory Biomarker - Interleukin 10 (IL-10)266.948 pg/mLStandard Deviation 257.77
Primary

Mean Serum Concentration of Inflammatory Biomarker - Interleukin 1 Beta (IL-1B)

Serum samples was collected at various times after HLH diagnosis to determine the concentration of IL-1B.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Inflammatory Biomarker - Interleukin 1 Beta (IL-1B)2.140 pg/mLStandard Deviation 0
M-HLH PatientsMean Serum Concentration of Inflammatory Biomarker - Interleukin 1 Beta (IL-1B)2.140 pg/mLStandard Deviation 0
Primary

Mean Serum Concentration of Inflammatory Biomarker - Interleukin 6 (IL-6)

Serum samples was collected at various times after HLH diagnosis to determine the concentration of IL-6.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Inflammatory Biomarker - Interleukin 6 (IL-6)3.455 pg/mLStandard Deviation 3.727
M-HLH PatientsMean Serum Concentration of Inflammatory Biomarker - Interleukin 6 (IL-6)29.695 pg/mLStandard Deviation 52.403
Primary

Mean Serum Concentration of Inflammatory Biomarker - Neopterin

Serum samples was collected at various times after HLH diagnosis to determine the concentration of neopterin.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Inflammatory Biomarker - Neopterin33.995 nanomolesStandard Deviation 29.227
M-HLH PatientsMean Serum Concentration of Inflammatory Biomarker - Neopterin839.775 nanomolesStandard Deviation 950.07
Primary

Mean Serum Concentration of Inflammatory Biomarker - Soluble CD163 (sCD163)

Serum samples was collected at various times after HLH diagnosis to determine the concentration of sCD163.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Inflammatory Biomarker - Soluble CD163 (sCD163)1431.488 nanogram (ng)/mLStandard Deviation 1078.058
M-HLH PatientsMean Serum Concentration of Inflammatory Biomarker - Soluble CD163 (sCD163)878.880 nanogram (ng)/mL
Primary

Mean Serum Concentration of Inflammatory Biomarker - Soluble IL-2 Receptor Alpha (sIL2Ra)

Serum samples was collected at various times after HLH diagnosis to determine the concentration of sIL2Ra.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Inflammatory Biomarker - Soluble IL-2 Receptor Alpha (sIL2Ra)2273.193 pg/mLStandard Deviation 2383.154
M-HLH PatientsMean Serum Concentration of Inflammatory Biomarker - Soluble IL-2 Receptor Alpha (sIL2Ra)27052.498 pg/mLStandard Deviation 24009.516
Primary

Mean Serum Concentration of Inflammatory Biomarker - Total Human Interferon Gamma (hIFNg)

Serum samples was collected at various times after HLH diagnosis to determine the concentration of hIFNg.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Inflammatory Biomarker - Total Human Interferon Gamma (hIFNg)34.178 pg/mLStandard Deviation 25.95
M-HLH PatientsMean Serum Concentration of Inflammatory Biomarker - Total Human Interferon Gamma (hIFNg)1069.215 pg/mLStandard Deviation 1987.409
Primary

Mean Serum Concentration of Inflammatory Biomarker - Tumor Necrosis Factor Alpha (TNFa)

Serum samples was collected at various times after HLH diagnosis to determine the concentration of TNFa.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Inflammatory Biomarker - Tumor Necrosis Factor Alpha (TNFa)6.050 pg/mLStandard Deviation 6.405
M-HLH PatientsMean Serum Concentration of Inflammatory Biomarker - Tumor Necrosis Factor Alpha (TNFa)14.308 pg/mLStandard Deviation 12.01
Primary

Mean Serum Concentration of Lactate Dehydrogenase

Blood samples was collected at various times after HLH diagnosis to determine the concentration of lactate dehydrogenase.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Lactate Dehydrogenase539.8 IU/LStandard Deviation 660.8
M-HLH PatientsMean Serum Concentration of Lactate Dehydrogenase362.7 IU/LStandard Deviation 274.4
Primary

Mean Serum Concentration of Lymphocytes

Blood samples was collected at various times after HLH diagnosis to determine the concentration of lymphocytes.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Lymphocytes3.636 cells*10^3/mcLStandard Deviation 10.88
M-HLH PatientsMean Serum Concentration of Lymphocytes1.956 cells*10^3/mcLStandard Deviation 3.424
Primary

Mean Serum Concentration of Monocytes

Blood samples was collected at various times after HLH diagnosis to determine the concentration of monocytes.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Monocytes1.306 cells*10^3/mcLStandard Deviation 3.602
M-HLH PatientsMean Serum Concentration of Monocytes0.948 cells*10^3/mcLStandard Deviation 1.721
Primary

Mean Serum Concentration of Neutrophils

Blood samples was collected at various times after HLH diagnosis to determine the concentration of neutrophils.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Neutrophils7.715 cells*10^3/mcLStandard Deviation 14.003
M-HLH PatientsMean Serum Concentration of Neutrophils22.303 cells*10^3/mcLStandard Deviation 37.944
Primary

Mean Serum Concentration of Platelets

Blood samples was collected at various times after HLH diagnosis to determine the concentration of platelets.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Platelets182.6 cells*10^3/mcLStandard Deviation 138.2
M-HLH PatientsMean Serum Concentration of Platelets92.9 cells*10^3/mcLStandard Deviation 87.1
Primary

Mean Serum Concentration of Red Blood Cells

Blood samples was collected at various times after HLH diagnosis to determine the concentration of red blood cells.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Red Blood Cells3.420 cells*10^6/mcLStandard Deviation 0.745
M-HLH PatientsMean Serum Concentration of Red Blood Cells3.206 cells*10^6/mcLStandard Deviation 0.396
Primary

Mean Serum Concentration of Sodium

Blood samples was collected at various times after HLH diagnosis to determine the concentration of sodium.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent. Only patients with data collected for this outcome measure are reported.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Sodium136.4 millimoles/LStandard Deviation 3.7
M-HLH PatientsMean Serum Concentration of Sodium135.3 millimoles/LStandard Deviation 3.2
Primary

Mean Serum Concentration of Total Bilirubin

Blood samples was collected at various times after HLH diagnosis to determine the concentration of total bilirubin.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of Total Bilirubin0.590 mg/dLStandard Deviation 0.559
M-HLH PatientsMean Serum Concentration of Total Bilirubin4.204 mg/dLStandard Deviation 6.359
Primary

Mean Serum Concentration of White Blood Cells

Blood samples was collected at various times after HLH diagnosis to determine the concentration of white blood cells.

Time frame: 11 months

Population: The enrolled set included all patients who signed an informed consent.

ArmMeasureValue (MEAN)Dispersion
A-HLH PatientsMean Serum Concentration of White Blood Cells4.263 cells*10^3/microliter (mcL)Standard Deviation 3.48
M-HLH PatientsMean Serum Concentration of White Blood Cells2.459 cells*10^3/microliter (mcL)Standard Deviation 2.854

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026