Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Analyzing spinal fluid in lung cancer patients with leptomeningeal disease

Official title: CSF Liquid Biopsy Based Characterization of Leptomeningeal Disease in EGFR Mutant Non-Small Cell Lung Cancer

Run by British Columbia Cancer Agency · NCT05257967 · Data updated 2026-11-12

This study is trying to see how the spinal fluid and blood of lung cancer patients with a specific mutation differ, to better understand their condition and how it affects their quality of life.

More Non-Small Cell Lung Cancer trials

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment10 (estimated)
SponsorBritish Columbia Cancer Agency
Academic / other
Locations1 site (Vancouver, British Columbia)
StatusRecruiting
StartedJuly 18, 2022
Main results expectedDecember 31, 2027
Study endsDecember 31, 2027
Registry record updatedOctober 19, 2026
Trial IDNCT05257967 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 and older with confirmed metastatic EGFR mutant NSCLC and leptomeningeal disease.

Probably not a fit

Patients who cannot undergo a lumbar puncture or have conditions preventing safe participation may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This pilot trial aims to evaluate the molecular differences between cerebral spinal fluid (CSF) and blood circulating tumor DNA (ctDNA) in patients with EGFR mutant non-small cell lung cancer (NSCLC) who develop leptomeningeal disease. The study will involve 10 patients who will undergo lumbar puncture and blood sampling for molecular testing. Baseline quality of life assessments will be conducted, and follow-up questionnaires will be collected every 12 weeks. The trial will not involve any treatment intervention but will gather data on subsequent treatments received by participants.

Why it matters

Potential benefit: If successful, this study could lead to more effective targeted therapies for patients with leptomeningeal disease in EGFR mutant NSCLC.

How similar studies have gone: While this approach is novel in the context of leptomeningeal disease in NSCLC, similar molecular profiling studies have shown promise in other cancer types.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Subject age is greater than or equal to 18 years at the time of signature of informed consent.
* Histologically or cytologically confirmed metastatic EGFR mutant NSCLC.
* Leptomeningeal disease based on brain MRI or CSF cytology.
* ECOG 0-3.
* Life expectancy of at least 8 weeks.
* Adequate hematologic and end organ function for testing.
* Ability to give informed consent for the study procedures defined in this protocol.

Exclusion Criteria:

* Inability to undergo a lumbar puncture due to thrombocytopenia, bleeding disorders, as well as inability to cooperate or consent to procedure.
* Subjects who are otherwise felt by the treating clinician to be unfit to proceed with this protocol.
* MRI spine demonstrating spinal leptomeningeal disease preventing a safe lumbar puncture.

Where it's running

  • BC Cancer
    Vancouver, British Columbia, Canada
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.