This trial is active, not recruiting.

Condition hemophagocytic syndrome
Treatment identification of biological markers
Sponsor Assistance Publique - Hôpitaux de Paris
Collaborator Laboratory of normal and pathological development Immune System - IFR 94 U768
Start date January 2010
End date January 2016
Trial size 204 participants
Trial identifier NCT02113917, AOM 10219, NI10015


Different study of HLHa patients :

- Diagnosis criteria, because criteria are based on pediatric genetic studies.

- Physiopathological studies: genetic studies have demonstrated the role of CD8+ cells, in particular because they have a genetic defect affecting their cytotoxic functions in HLH pediatric. the aim is to establish if the same defect is found in both some or in all of HLHa patients. If this is the case, to then establish whether hypomorphic genetic mutations are responsible.

United States No locations recruiting
Other countries No locations recruiting

Study Design

Observational model cohort
Time perspective prospective
patient with hemophagocytic syndrome
identification of biological markers

Primary Outcomes

biologicals criteria
time frame: T0 (before traitment
name of treatment
time frame: T2 (T2 is the first day of treatment)
Clinicals criteria
time frame: T0
biologicals criteria
time frame: T1 (T1 is the first day of HLH syndrome)
biologicals criteria
time frame: T2 (T2 is the first day of treatment)
biologicals criteria
time frame: T4 (6 /12 months after the resolution of HLH)
Clinicals criteria
time frame: T1(T1 is the first day of HLH syndrome)
Clinicals criteria
time frame: T2 (T2 is the first day of treatment)
Clinicals criteria
time frame: T4 6 /12 months after the resolution of HLH)
name of treatment
time frame: T4(6/12 month after resolution of HLH)

Eligibility Criteria

Male or female participants at least 2 years old.

Inclusion Criteria: Major criteria: - hemophagocytosis found in a specimen histology. - Fever - Splenomegaly Minor criteria: - adenopathy - cytopenia> 2 cell lines Hemoglobin <9 g / dl (less than 4 weeks and> 12 g / dl) Platelets <100 000 x 10 / l Neutrophils <1 10 / l - hypertriglyceridaemia and / or hypofibrinogenaemia Elevated triglycerides> 3 mmol / l Fibrinogen <1.5 g / l - Ferritin> 500 microg / L These criteria will be those used for the diagnosis of HLH in adults: One major criterion and two minor (including hyper ferritin or hypertriglyceridemia) 3 minor criteria (including hyper ferritin or hypertriglyceridemia) Exclusion Criteria: - Pregnant women - A person under guardianship - Patients under the age of 2 years

Additional Information

Official title The Formation of a Cohort of HLHa Patients in Order to Study Their Physiopathological Characteristics
Principal investigator Olivier Hermine, MD, PhD
Description Formation of a prospective and retrospective infant, adolescent and adult HLH patients cohort. Collection of clinical and biological, therapeutics, informations, in a register, The collection of information is: - To identify clinical and biological criteria specific to HLHa - Classify patients into homogeneous groups, based on clinical biological scalability in particular, with regards to their response to treatment - Identify and analyze the behavioral therapy Creation of a bank of biological samples for use in the study of the pathophysiology of HLHa. Background: The hemophagocytic syndrome in infant, adolescent and adults (HLH) is a serious and often lethal condition. The study of literature series HLHa shows that these syndromes frequently develop in immunocompromised patients (renal transplant, HIV, collagen in Processing immunosuppressants) in the course of a viral infection. HLH syndrome has also been described as a clinical form of lymphoma or connective disease (lupus). These clinical forms are rare, severe and recurrent suggesting the possibility that immune deficiency could be involved. The study of pediatric forms has definitely established a link between HLH syndrome and the presence of immune deficiency by identifying the nature of the latter. Four genetically determined diseases are manifested by HLH syndrome. These conditions are Family lymphohistiocytosis (LHF) syndrome, Chediak-Higashi CHS syndrome, Griscelli (GS) type 2 syndromes and X-linked lymphoproliferative (XLP 1 and 2). The mutated genes are respectively perforin Unc 13.4 and syntaxin in the LHF2, 3, 4 (10q locus genetic for LHF 1), CHS1/LYST (Lysosomal Trafficking regulator) in the CHS, in the Rab27a GS type 2, and XIAP and SH2D1A in the XLP. It is now well established that proteins encoded by these genes are necessary for the cytotoxic function of CD8 + and in the absence of these proteins is the cytotoxocity CD8 + deficient. Also, closed clinical and biological characteristics shared by pediatric genetic and adult forms suggest the existence of immune defects responsible for some or all HLH adult patients.
Trial information was received from ClinicalTrials.gov and was last updated in August 2016.
Information provided to ClinicalTrials.gov by Assistance Publique - Hôpitaux de Paris.