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Multicenter retrospective study for brain metastases from breast cancer: Impact of molecular subtype on clinical outcomes

Multicenter retrospective study for brain metastases from breast cancer: Impact of molecular subtype on clinical outcomes - Multicenter retrospective study for brain metastases from breast cancer

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000027908
Enrollment
300
Registered
2017-08-01
Start date
2017-09-01
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

brain metastases

Interventions

None listed

Sponsors

Japanese Gamma Knife Society
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Breast cancer patients with brain metastases treated by gamma knife surgery are included. Gamma knife surgery was completed until March 31, 2017. The genetic phenotype of breast cancer is mandatory.

Exclusion criteria

Exclusion criteria: patients with undetermined genetic phenotype

Design outcomes

Primary

MeasureTime frame
Loss of functional independence Neurological death

Secondary

MeasureTime frame
Overall survival, tumor control, tumor recurrence, radiation injury, distant recurrence

Countries

Japan

Contacts

Public ContactKyoko Aoyagi

Chiba Cerebral and Cardiovascular Center Department of Neurosurgery

kyo-tsuru@nifty.com0436-88-3111

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026