A Phase 2 interventional study of Biospecimen Collection and Computed Tomography in Anatomic Stage IV Breast Cancer AJCC v8, Metastatic Breast Carcinoma and Metastatic Lung Non-Small Cell Carcinoma, sponsored by University of Washington. Recruiting at 3 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-08-14.
Sponsored by University of Washington · Phase 2, Interventional, and Treatment
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Among 63 studies in Breast Neoplasms by University of Washington — 6 open to participants now, 10 under way, none of them phase 3. Breast Neoplasms · University of Washington.
Among the 63 studies in Breast Neoplasms by University of Washington, this one is the 38th largest by planned enrollment of the 55 interventional ones that give a count, is one of 3 that started in 2025, is one of 22 in phase 2, and was the 60th registered.
14,832 studies on the registry are indexed under Breast Neoplasms; 3,320 are open to participants now.
Browse Breast Neoplasms studies →6 of the 63 studies in Breast Neoplasms by University of Washington are open now, in 1 country. Recruiting first, the newest first:
University of Washington · Sites in United States
Ages 18+
University of Washington · Sites in United States
Ages 18+
University of Washington · Sites in United States
Ages 18+
University of Washington · Sites in United States
Ages 18+
University of Washington
Ages 40–74 · Women only · Healthy volunteers
By country, each count listing its studies:
Of the 2,399 Breast Neoplasms studies recruiting now, 1,570 (65%) set no upper age limit and 592 (25%) stop at 75 or younger; 103 take children under 18; 215 take healthy volunteers.
This study: 18 Years and older · all sexes · no healthy volunteers.
The full table on the hub →This tab as a report to print or save as PDF → With an account.
63 studies; the count open now beside each. This study's row is marked.
A study in two phases is counted once above. Listed by phase, each with its combined phases: Phase 1 18 · Phase 2 30 · Phase 3 1
First in 1996; this study’s year is marked. 3 started in 2025.
By drug class, each counting the studies that test any of its medicines:
This study's planned enrollment of 22 is below the median of 72 across 10,903 interventional studies indexed under Breast Neoplasms.
Median enrollment 35 across the 55 interventional studies, 100 across the 7 observational. Of the 50 that completed or were terminated, 23 (46%) have results posted.
This tab as a report to print or save as PDF → With an account.
University of Washington is the lead sponsor of 1,434 studies on the registry; 226 are open to participants now.
Of its 158 completed or terminated interventional studies of FDA-regulated products, 136 (86%) have results posted.
5 of the studies in Breast Neoplasms by University of Washington that are under way reach primary completion within a year, 0 of them phase 3. Phase 3 first, then by date:
| Study | Primary completion |
|---|---|
| NCT04329065University of WashingtonConcurrent WOKVAC Vaccination, Chemotherapy, and HER2-Targeted Monoclonal Antibody Therapy Before Surgery for the Treatment of Patients With Breast Cancer | 2026-12-31 |
| NCT07858825University of WashingtonDesign and Pilot Implementation of a Chatbot to Support Breast Cancer Screening Among Black Women | 2027-03-01 |
| NCT06179303University of WashingtonFunctional Imaging in Prediction of Response to Abemaciclib for Advanced Hormone Receptor-Positive, HER2-Negative Breast Cancer | 2027-03-01 |
| NCT03607552University of WashingtonNon-contrast DWI for Supplemental Screening | 2027-07 |
| NCT06518057University of WashingtonHippocampal Avoidance in Craniospinal Irradiation for the Treatment of Leptomeningeal Metastases From Breast Cancer or Non-small Cell Lung Cancer | 2027-07-01 |
Add all 5 to your calendar (.ics) → With an account.
Among the 63 studies in Breast Neoplasms by University of Washington, from their registry updates:
This tab as a report to print or save as PDF → With an account.
This phase II clinical trial studies how well craniospinal irradiation (CSI) with hippocampal avoidance, using proton therapy or volumetric modulated arc therapy (VMAT), works in treating patients with breast cancer or non-small cell lung cancer (NSCLC) that has spread from the original (primary) tumor to the cerebrospinal fluid (CSF) and meninges (thin layers of tissue that cover and protect the brain and spinal cord) (leptomeningeal metastases). Radiation therapy is an effective treatment in relieving localized symptoms caused by leptomeningeal metastases. However, the type of radiation therapy typically used does not prevent the spread of leptomeningeal disease. CSI (radiation therapy directed at the brain and spinal cord to kill tumor cells) may be able to target all of the areas of possible leptomeningeal tumor spread. CSI may however result in significant neurological side effects due to radiation damage to a part of the brain called the hippocampus. Hippocampal avoidance (HA) reduces the amount of radiation to the hippocampus. Proton or VMAT CSI with HA may be an effective treatment while reducing neurological side effects for patients with leptomeningeal metastases from breast cancer and NSCLC.
OUTLINE:
Patients undergo proton or photon VMAT CSI with HA over approximately 45 minutes once daily (QD) for 10 days (Monday-Friday) in the absence of unacceptable toxicity. Patients may also undergo computed tomography (CT) or positron emission tomography (PET)/CT during screening. Additionally, patients will undergo additional CT for radiation planning during screening and magnetic resonance imaging (MRI) throughout the trial. Patients may also undergo lumbar puncture (LP) or alternative methods for cerebral spinal fluid (CSF) collection at the discretion of the treating physician and principal investigator throughout the study.
After completion of study treatment, patients are followed up at 3, 6, 9, and 12 months, and then at the time of CNS disease progression, up to 1 year.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Cancer that has spread to the leptomeninges, the thin layers covering the brain and spinal cord, and the fluid between them. It is not the same as brain metastases.
Criteria often treat it separately, and many studies leave it out even where treated brain metastases are allowed.
A 0–100 scale of how well someone can carry out everyday activities. 100 is no complaints and no signs of illness; 70 is able to look after yourself but not to work or keep up normal activity; 50 is needing considerable help and frequent medical care.
Studies often ask for 60 or 70 and above. Your doctor gives the score.
A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.
Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).
The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.
It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.
Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.
Able to have children. For women this usually means from the first period until menopause, unless permanently unable to through surgery; for men, unless permanently sterile. Read who the line is about — participants, women, men, or their partners.
Criteria about it usually ask for contraception during the study and for a time after it.
Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).
Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.
Cancer (malignancy)
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Leptomeningeal disease
Cancer that has spread to the leptomeninges, the thin layers covering the brain and spinal cord, and the fluid between them. It is not the same as brain metastases.
Criteria often treat it separately, and many studies leave it out even where treated brain metastases are allowed.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Karnofsky performance status (KPS)
A 0–100 scale of how well someone can carry out everyday activities. 100 is no complaints and no signs of illness; 70 is able to look after yourself but not to work or keep up normal activity; 50 is needing considerable help and frequent medical care.
Studies often ask for 60 or 70 and above. Your doctor gives the score.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ECOG performance status
A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.
Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hemoglobin (Hb)
The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Absolute neutrophil count (ANC)
The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.
It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Platelets
Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Reproductive potential
Able to have children. For women this usually means from the first period until menopause, unless permanently unable to through surgery; for men, unless permanently sterile. Read who the line is about — participants, women, men, or their partners.
Criteria about it usually ask for contraception during the study and for a time after it.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Postmenopausal
Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Brain metastases
Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).
Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Patients undergo proton or photon VMAT CSI with HA over approximately 45 minutes once daily (QD) for 10 days (Monday-Friday) in the absence of unacceptable toxicity. Patients also undergo computed tomography (CT) or positron emission tomography (PET)/CT during screening. Additionally, patients undergo additional CT for radiation planning during screening and magnetic resonance imaging (MRI) throughout the trial. Patients may also undergo lumbar puncture (LP) or alternative methods for cerebral spinal fluid (CSF) collection at the discretion of the treating physician and principal investigator throughout the study.
Procedure: Biospecimen Collection · Procedure: Computed Tomography · Other: Electronic Health Record Review · Procedure: Lumbar Puncture · Procedure: Magnetic Resonance Imaging · Procedure: Positron Emission Tomography · Radiation: Proton Beam Craniospinal Irradiation · Other: Survey Administration · Radiation: Volume Modulated Arc Therapy · Procedure: Hippocampal-Avoidance Craniospinal Irradiation
Undergo CSF sample collection
Also known as: Biological Sample Collection, Biospecimen Collected, Specimen Collection
Undergo PET/CT and/or CT
Also known as: CAT, CAT Scan, Computed Axial Tomography, Computerized Axial Tomography, Computerized axial tomography (procedure), Computerized Tomography, Computerized Tomography (CT) scan, CT, CT Scan, tomography
Ancillary studies
Undergo lumbar puncture
Also known as: LP, Spinal Tap
Undergo MRI
Also known as: Magnetic Resonance, Magnetic Resonance Imaging (MRI), Magnetic resonance imaging (procedure), Magnetic Resonance Imaging Scan, Medical Imaging, Magnetic Resonance / Nuclear Magnetic Resonance, MR, MR Imaging, MRI, MRI Scan, MRIs, NMR Imaging, NMRI, Nuclear Magnetic Resonance Imaging, sMRI, Structural MRI
Undergo PET/CT
Also known as: Medical Imaging, Positron Emission Tomography, PET, PET Scan, Positron emission tomography (procedure), Positron Emission Tomography Scan, Positron-Emission Tomography, PT
Undergo proton CSI
Also known as: Craniospinal Proton Beam Radiation Therapy, p-CSI, Proton Craniospinal Irradiation, Proton Craniospinal Radiation Therapy
Ancillary studies
Undergo photon VMAT CSI
Also known as: VMAT, Volumetric Modulated Arc Therapy (procedure)
Undergo HA
Also known as: Hippocampal-sparing Craniospinal Irradiation
Central nervous system (CNS)-progression free survival (PFS)
PFS is defined as time from craniospinal irradiation (CSI) to CNS disease progression or death. CNS-PFS will be summarized using Kaplan-Meier methodology. Median, 95% confidence interval (CI) and Kaplan-Meier plot will be provided. One-sample log-rank test will be used to test if the median CNS PFS of hippocampal avoidance in CSI for leptomeningeal metastases from breast cancer or non-small cell lung cancer (NSCLC) is significantly larger than the expected median CNS PFS with involved-field radiation therapy (IFRT), i.e., 2.5 months. P-value will be provided.
Time frame: Up to 12 months
Number of adverse events associated with hippocampal avoidance craniospinal irradiation (HA-CSI)
The analyses of the adverse events associated with HA-CSI will be descriptive in nature. Summary tables and listings will be provided for all reported adverse events (AEs).
Time frame: Up to 12 months
Neurocognitive function assessment
Linear mixed models will be used to examine changes in neurocognitive domain (attention, executive functions, memory) performances from pre-RT baseline to 3, 6, and 12 months. Magnitude of change will be examined at each timepoint using standardized effect sizes (e.g., Cohen's d). For each timepoint, the study investigators will examine the proportion of individuals who demonstrate a reliable change in at least 2 (out of 10) test performances as compared to pre-RT baseline performances.
Time frame: Up to 12 months
Overall survival (OS)
Comparison of OS between the study group and the historical cohort will be analyzed using stratified log-rank test. OS will be estimated and visualized using Kaplan-Meier methods.
Time frame: Up to 12 months
Plan to share: No
No publications or documents are linked to this record.
Started Mar 2025 (actual). Primary completion is estimated for Jul 2027, 27 months after the start.
Of 1,070 non-industry phase 2 interventional studies under Breast Neoplasms, half reached primary completion within 56 months of starting (the median), counting those still running; a quarter within 34 and three quarters within 89. This study's planned 27 months is below that.
Counting every sponsor, half of 1,302 studies reached it within 51 months; a quarter within 30 and three quarters within 82.
How these figures are worked out, and which studies are left out of them.
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
Contact study teamGet an email when the registry record changes — status, dates, results — or when someone posts here.
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Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.