Natural History of Hypereosinophilia and Hypereosinophilic Syndromes

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
AgeNot listed
SponsorUniversity Hospital, Lille

About this trial

Unexplained chronic hypereosinophilia (HE) and hypereosinophilic syndromes (HES) are heterogeneous regarding the organ involvements (heart, lungs, skin, .. or none), the evolutionary profiles, the response to treatments.

Underlying mechanisms are largely unknown and may associate genetic predisposing factors (germinal ? somatic?), environmental factors (alimentation, tobacco use, hormones, infections, ..) The COHESion study aims to study all clinical and biological characteristics of HE/HES patients and their evolutionary profiles, with a focus on genetic factors and the mechanisms supporting transitory or persistant chronic HE/HES (in absence of any well identified extrinsic trigger like drugs, parasitosis, ..)

Eligibility criteria

Qualifiers

With the diagnosis criteria of hyperosinophlia OR hypereosinophilic syndrome OR specific organ eosinophilic disease according to the consensus conference of the International Cooperative Working Group on Eosinophil Disorders (ICOG-EO)

With an AEC > 1500/mm3 or organ damage related to the presence of eosinophils in the tissues or organs whatever the context (idiopathic, clonal or reactive, including drug-related, parasitic or allergic)

HES diagnosis since 2005/01/01

Patients socially insured

Disqualifiers

Known HIV infection

Not socially insured

Person unable to receive a enlighten information

Person who refuse to sign the consent

Trial design

Treatments tested in this trial

  • Biological sample

Treatment groups

600 Participants
are divided into 1 treatment group

Sponsors and collaborators