Examining eosinophils in patients with non-small cell lung cancer

PROspective Trial on EOsinophilia in Non-Small Cell Lung Cancer (NSCLC) (PROTEON).

Not applicable Interventional Centre Hospitalier Universitaire de Liege · NCT05602259

This study is trying to see how eosinophils in different samples from patients with untreated non-small cell lung cancer can help predict their treatment outcomes.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment200 (estimated)
Ages18 Years and up
SexAll
SponsorCentre Hospitalier Universitaire de Liege Academic / other
Locations1 site (Liège)
Trial IDNCT05602259 on ClinicalTrials.gov

What this trial studies

This prospective study investigates the role of eosinophils in various biological materials from patients with untreated non-small cell lung cancer (NSCLC). It aims to compare the detection of eosinophils in these materials and evaluate their prognostic and predictive significance. The study will involve interventions such as induced sputum collection, lung biopsy, bronchoalveolar lavage, and blood draws to gather necessary data. Participants will be monitored for at least six months following treatment initiation at the CHU de Liège.

Who should consider this trial

Good fit: Ideal candidates include adults aged 18 and older with stage III-IV NSCLC who are eligible for immune checkpoint inhibitor treatment and have not previously received such therapy.

Not a fit: Patients with early-stage NSCLC or those who have previously undergone immune checkpoint inhibitor therapy may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance the understanding of eosinophils' role in NSCLC, potentially leading to improved prognostic tools and treatment strategies.

How similar studies have performed: While the specific role of eosinophils in NSCLC is still being explored, similar studies investigating immune cell profiles in cancer have shown promising results.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* o All stages of NSCLC

  * Stage III-IV NSCLC eligible for ICI treatment
  * 18 years or older; non pregnant women
  * in stage III-IV: no previous ICI and before ICI (mono- or combination therapy) initiation
  * Signed informed consent
  * Clinical, biological and radiological evaluation at the CHU de Liège for at least 6 months following treatment initiation

Exclusion Criteria:

* Probable noncompliance with the follow-up requirements of the study (psychiatric condition, socio-economic factors)
* Inclusion in a clinical study contraindicating the enrolment in the PROTEON study

Where this trial is running

Liège

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Non-small Cell Lung Cancer
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.