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Spots Global Cancer Trial Database for CSF Analysis in EGFR Mutant Non-Small Cell Lung Cancer With Leptomeningeal Disease

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Trial Identification

Brief Title: CSF Analysis in EGFR Mutant Non-Small Cell Lung Cancer With Leptomeningeal Disease

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

Study ID: NCT05257967

Study Description

Brief Summary: Leptomeningeal disease is malignant seeding of the leptomeninges and presents with a variety of symptoms frequently impacting quality of life. With improvement in treatment options, rates of leptomeningeal disease are increasing and currently found in up to 9% of EGFR mutant NSCLC. Systemic therapy may be more effective if it can target the correct molecular aberration. The molecular characterization of central nervous system disease may differ from disease outside of the central nervous system. The aim of this pilot trial is to evaluate for molecular differences between cerebral spinal fluid (CSF) and blood circulating tumor DNA (ctDNA) through the use of ddPCR and BC Cancer NGS panel molecular testing.

Detailed Description: The aim of this pilot trial is to evaluate the concordance/discordance of molecular profiling of CSF and plasma ctDNA after the development of leptomeningeal disease in EGFR mutant NSCLC. Patients with EGFR mutant NSCLC who develop leptomeningeal disease on a first, second or third generation tyrosine kinase inhibitor are potentially eligible for this clinical trial. This is a prospective pilot study designed to accrue 10 patients. Baseline MRI brain and spine must be completed prior to enrolment to insure that a lumbar puncture can be completed safely. All eligible subjects will be consented for ddPCR and Canexia Follow It plasma and CSF based molecular testing. Patients will have baseline information collected and will complete baseline quality of life (QoL) questionnaires. QoL questionnaires will be obtained every 12 weeks +/- 2 weeks and survival will be measured through chart review. There will be no treatment intervention; however we will collect information on treatment received after enrolment in trial. Volume of leptomeningeal disease will be scored by number of gadolinium enhancing sites in 8 predetermined locations.

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: ALL

Healthy Volunteers: No

Locations

BC Cancer, Vancouver, British Columbia, Canada

Contact Details

Name: Cheryl Ho, MD

Affiliation: BC Cancer

Role: PRINCIPAL_INVESTIGATOR

Useful links and downloads for this trial

Clinicaltrials.gov

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