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NCT04018118: COHESION

Study of Clinical Profiles of Patients Followed for Chronic Hypereosinophilia and/or Hypereosinophilic Syndrome by the Creation of a National Cohort

Recruiting now Last updated 18 February 2026
What this trial tests

trial testing Biological sample in Eosinophilia in 600 participants. Currently enrolling.

Timeline
6 May 2019
Primary endpoint
6 May 2029
1 May 2031

Quick facts

Lead sponsorUniversity Hospital, Lille
StatusRecruiting now
Study typeOBSERVATIONAL
Enrollment600
Start date6 May 2019
Primary completion6 May 2029
Estimated completion1 May 2031
Sites1 location across France

Drugs / interventions tested

Conditions studied

Sponsor

University Hospital, Lille

Who can join

Eligibility, any sex, with Eosinophilia or Hypereosinophilic Syndrome. Patients with the condition only — healthy volunteers not accepted.

What's being measured

Primary outcomes are the specific endpoints the trial is designed to prove or disprove.

Sponsor's own description

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, ..)

Publications & conference data

2 peer-reviewed publications reference this trial (live from Europe PMC):

  1. The multidisciplinary approach to eosinophilia.
    Thomsen GN, Christoffersen MN, Lindegaard HM, Davidsen JR, et al · · 2023 · cited 21× · PMID 37274287 · DOI 10.3389/fonc.2023.1193730
  2. Hypereosinophilia and Hypereosinophilic Syndromes: First Findings From a Nationwide Multicenter Cohort.
    Lefèvre G, Bleuse S, Puyade M, Moulis G, et al · · 2025 · cited 11× · PMID 39757773 · DOI 10.1111/all.16463

Verify or expand the search:

Other trials of Biological sample

Trials testing the same drug.

Other recruiting trials for Eosinophilia

Currently open trials in the same condition.

Other University Hospital, Lille trials

Trials by the same sponsor.

Verify against primary sources

Data sources for this page

Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT04018118.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing