Understanding immunotherapy outcomes in lung cancer after treatment stops

Immunotherapy in Lung Cancer: Which Treatment After Immunotherapy Cessation: A Prospective Registry From the European Lung Cancer Working Party

European Lung Cancer Working Party · NCT04465942

This study looks at patients with advanced lung cancer who have stopped immunotherapy to see how it affects their survival and what treatment options they choose next.

Quick facts

Study typeObservational
Enrollment300 (estimated)
Ages18 Years and up
SexAll
SponsorEuropean Lung Cancer Working Party (other)
Drugs / interventionschemotherapy, immunotherapy
Locations5 sites (Brussels and 4 other locations)
Trial IDNCT04465942 on ClinicalTrials.gov

What this trial studies

This observational study focuses on patients with stage IV non-small cell lung cancer (NSCLC) or unresectable stage III NSCLC who are receiving immunotherapy. It aims to document the reasons for stopping immunotherapy and the subsequent treatment approaches taken. Patients will be registered at the time of immunotherapy initiation, and data will be collected on survival rates and disease-free survival after treatment cessation. The study will provide insights into the therapeutic landscape following immunotherapy.

Who should consider this trial

Good fit: Ideal candidates include patients with stage IV or unresectable stage III NSCLC who are receiving immunotherapy for the first time.

Not a fit: Patients who have previously received adjuvant immunotherapy for earlier stages of NSCLC may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could improve understanding of treatment pathways and outcomes for lung cancer patients after immunotherapy.

How similar studies have performed: While the approach of assessing outcomes after immunotherapy cessation is not widely tested, similar studies have shown promise in understanding treatment dynamics in lung cancer.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Histological diagnosis of non-small cell lung cancer (NSCLC)
* Stage IVA/IVB and unresectable and non irradiable stage III NSCLC naïve of immunotherapy.
* Patients who receive immunotherapy (any type) monotherapy, combined immunotherapy or in combination with chemotherapy for first or second-line treatment.
* Availability for participating in the detailed follow-up of the protocol.
* Signed informed consent.

Exclusion Criteria:

* Patients receiving adjuvant immunotherapy for stage I-III NSCLC are not eligible
* Tumours for which TNM stage at time of study inclusion cannot be assessed.
* History of prior malignant tumour, except non-melanoma skin cancer or in situ carcinoma of the cervix or of the bladder or cured malignant tumor (more than 5-year disease free interval).
* Any type of immunotherapy for previous cancer

Where this trial is running

Brussels and 4 other locations

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.

View on ClinicalTrials.gov →

Conditions: Carcinoma, Non-Small-Cell Lung, Immunotherapy

Last reviewed 2026-05-15 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.