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Proton Cranio-spinal Irradiation for Leptomeningeal Metastasis

Phase II Study of Proton Cranio-spinal Irradiation for Leptomeningeal Metastasis

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05746754
Acronym
CSI ProLong
Enrollment
50
Registered
2023-02-28
Start date
2023-11-01
Completion date
2031-04-01
Last updated
2025-04-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Leptomeningeal Metastasis

Brief summary

Leptomeningeal metastasis is a rare but serious complication to cancer, with a grave prognosis. No efficient treatment exists. Recent data suggest that craniospinal radiotherapy lead to superior survival and CNS control compared to focal photon radiotherapy. We want to offer Danish patients the new treatment, but within a protocol, as this is new data with an new treatment principle

Detailed description

Patients must be referred from Danish Departments of Oncology with radiotherapy service. Patients with leptomeningeal metastasis from both solid and hematological cancers will be offered proton radiotherapy with 30 Gy in 10 fractions to the entire craniospinal axis. Patients will be followed with registration of side effects, neurology and MRI scans every 3 months until 1 year.

Interventions

RADIATIONCSI

30 Gy in 10 fractions to CNS

Sponsors

University of Aarhus
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Single Group

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Metastasis to the leptomeningeal space (LM) surrounding the brain and/ or spinal cord * Metastasis verified by MRI or CSF cytology * Karnofsky \>=60 (requiring some help, can take care of most personal requirements) * Adequate bone marrow function * Haemoglobin \> 5 mmol/l * Absolute neutrophil count \>1 10\^9/l * Platelet count \> 100 10\^9/l * Patient consent * Female subjects must either be of non-reproductive potential ( ≥ 60 years old, or with no menses for \>1 year without an alternative medical cause\], OR history of hysterectomy, OR history of bilateral tubal ligation, OR history of bilateral oophorectomy) or must have a pregnancy test within 2 weeks prior to starting treatment. * Patient at reproductive potential must agree to practice an effective contraceptive method.

Exclusion criteria

* • Previous radiotherapy to the intended treatment site that precludes developing a treatment plan that respects normal tissue tolerances (Yang) * Patient with multiple, serious major neurologic deficits per physician/investigator assessment including encephalopathy * Patient with extensive systemic disease and without reasonable systemic treatment options * Patient who is unable to undergo MRI brain and spine with gadolinium contrast * Pregnant or lactating women.

Design outcomes

Primary

MeasureTime frameDescription
CNS control6 monthslocal control

Secondary

MeasureTime frameDescription
overall survival1 yearactuarial
CNS-PFS dependent on tumor site1 yearprogression free survival, actuarial
Symptomatology1 yearNew symptoms, CTC AE 5.0 grade \>=3

Countries

Denmark

Contacts

Primary ContactKenneth Jensen, PhD
kennjens@rm.dk+45 78 45 64 00
Backup ContactDorte Winther, M.H.Sc.
dorte.skriver.winther@auh.rm.dk+45 78 45 64 00

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026