Observational study for patients with breast cancer leptomeningeal metastasis
Official title: A Translational Observational Biorepository and Management Study in Patients With Breast Cancer Leptomeningeal Metastasis: The BioLept Study
Run by Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins · NCT06638294 · Data updated 2026-11-12
This study is trying to learn more about breast cancer patients with leptomeningeal metastasis by collecting samples and providing better treatment options to improve their care.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Weeks and up |
| Sex | All |
| Enrollment | 30 (estimated) |
| Sponsor | Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins Academic / other |
| Locations | 2 sites (Washington D.C., District of Columbia and 1 other locations) |
| Status | Recruiting |
| Started | November 25, 2024 |
| Main results expected | December 2026 |
| Study ends | December 2028 |
| Registry record updated | November 28, 2025 |
| Trial ID | NCT06638294 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates include adults aged 18 or older with a history of breast cancer and suspected leptomeningeal metastasis.
✕Probably not a fit
Patients with central nervous system recurrence of hematologic malignancies or those not eligible for treatment of leptomeningeal disease 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 observational study aims to gather comprehensive data on patients with breast cancer-related leptomeningeal metastasis (LMD), a condition with a poor prognosis and limited treatment options. The study will collect biospecimens, including tissue, blood, and cerebrospinal fluid, to better understand the biology of LMD. Additionally, it will provide rapid diagnostics and multi-disciplinary treatment recommendations through the Johns Hopkins Molecular Tumor Board. By being as inclusive as possible, the study seeks to optimize patient management and correlate clinical outcomes with biological markers.
Why it matters
Potential benefit: If successful, this study could lead to improved understanding and management of breast cancer leptomeningeal metastasis, potentially enhancing patient outcomes.
How similar studies have gone: While studies on leptomeningeal metastasis are limited, the approach of collecting biospecimens and providing multi-disciplinary treatment recommendations is innovative and has not been widely tested.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Male or female, aged 18 or older * History of breast cancer (any subtype) * Suspected breast cancer-related leptomeningeal metastasis (i.e., by clinical signs or symptoms (i.e., peri-oral dysesthesia, unexplained new neurological symptoms in the absence of brain metastasis), radiographic, or by cerebrospinal fluid analysis), whereby patient will be treated along an leptomeningeal disease paradigm. * Previous central nervous system metastasis (including leptomeningeal disease or brain metastasis) is eligible. * Eastern Cooperative Oncology Group (ECOG) score of ≤3 or Karnofsky performance status ≥60. Exclusion Criteria: * Suspected central nervous system recurrence of hematologic malignancy, lymphoma or other solid tumor * Not eligible for treatment of leptomeningeal disease.
Where it's running
-
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Baltimore, Maryland, United States Recruiting -
Sibley Memorial Hospital
Washington D.C., District of Columbia, United States Not yet recruiting
Study contacts
- Principal investigator: Cesar Santa-Maria, MD — Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
- Study coordinator: Hopkins Breast Trials
- Email: HopkinsBreastTrials@jhmi.edu
- Phone: 410-614-1361
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Using Thiotepa and Methotrexate for Breast Cancer with Leptomeningeal Metastasis
This study is testing if a combination of thiotepa and methotrexate can help people with breast cancer that has spread to the protective layers around the brain feel better and live longer.
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Intrathecal thiotepa plus trastuzumab for HER2‑positive breast cancer with leptomeningeal metastasis
Testing whether injecting thiotepa together with trastuzumab into the cerebrospinal fluid through an Ommaya reservoir helps people with HER2‑positive breast cancer that has spread to the leptomeninges.
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ctDNA-guided Proton Craniospinal Irradiation for EGFR-mutant NSCLC with Leptomeningeal Metastasis
This trial tests whether a risk-adaptive proton craniospinal irradiation strategy, guided by CSF ctDNA clearance after initial therapy, can improve intracranial progression-free survival in patients with leptomeningeal metastasis from EGFR-mutant NSCLC after resistance to third-generation EGFR inhibitors.
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Amivantamab with intrathecal pemetrexed for leptomeningeal metastasis from EGFR-mutated lung adenocarcinoma
This study tests whether giving amivantamab with intrathecal pemetrexed is safe and may help treat leptomeningeal metastasis in adults with EGFR-mutant lung cancer.
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Intrathecal methotrexate-loaded tumor-derived vesicles for leptomeningeal lung cancer
This treatment will try giving methotrexate-loaded tumor-derived vesicles into the spinal fluid to see if it is safe and helps adults with leptomeningeal metastasis from lung cancer who have not responded to standard treatments.
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Brain-avoiding proton craniospinal irradiation for leptomeningeal metastases
This study tests BRAVO pCSI, a proton therapy approach that avoids certain brain regions, to see if it helps adults with leptomeningeal metastases from solid tumors.
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.