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.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 10 (estimated) |
| Sponsor | British Columbia Cancer Agency Academic / other |
| Locations | 1 site (Vancouver, British Columbia) |
| Status | Recruiting |
| Started | July 18, 2022 |
| Main results expected | December 31, 2027 |
| Study ends | December 31, 2027 |
| Registry record updated | October 19, 2026 |
| Trial ID | NCT05257967 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
- Principal investigator: Cheryl Ho, MD — BC Cancer
- Study coordinator: Cheryl Ho, MD
- Email: cho@bccancer.bc.ca
- Phone: 604.877.6000
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Osimertinib Plus SRS/SRT for EGFR-Mutant NSCLC with Symptomatic Brain Metastases
This study tests whether adding targeted brain radiotherapy to osimertinib helps control brain metastases in adults with EGFR-mutant NSCLC and neurological symptoms.
-
Pulsatile high-dose furmonertinib for EGFR-mutant NSCLC with leptomeningeal metastasis
This tests whether taking high-dose furmonertinib every other day helps people with EGFR-mutant non-small cell lung cancer that has spread to the leptomeninges.
-
Combining osimertinib and dalpiciclib for advanced lung cancer after treatment resistance
This study is testing if combining two drugs, osimertinib and dalpiciclib, can help people with advanced lung cancer who have not responded to other treatments.
-
Evaluating molecular factors and resistance mechanisms in lung cancer treatment
This study is testing how well a specific lung cancer treatment works for patients with certain gene mutations and aims to find out why some patients might not respond to the treatment or have a relapse.
-
Patient-specific MRD liquid biopsy for resected NSCLC
This study tests a personalized MRD blood and bronchial washing test after surgery to see if it can signal recurrence earlier in people with resected NSCLC.
-
Dato-DXd in solid tumors (Urothelial Cancer and KRAS-mutant NSCLC) in two sub-studies
This study tests Datopotamab Deruxtecan (Dato-DXd) alone or with other cancer drugs in people with urothelial cancer or KRAS-mutant non-small cell lung cancer.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.