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

Not Applicable
Conditions
brain metastases
Registration Number
JPRN-UMIN000027908
Lead Sponsor
Japanese Gamma Knife Society
Brief Summary

The breast cancer subtype was Luminal in 155 patients, Luminal-HER2 in 110, HER2 in 105, and triple negative (TN) in 69. The median overall survival time (months) after GKS was 10.4 in TN, 13.7 in Luminal, 31.4 in HER2 and 35.8 in Luminal-HER2. The cumulative incidence of SD and ND at 5 years after GKS was 69.3% and 9.8%, respectively. HER2-positive patients including HER2 and Luminal-HER2 had lower incidences in SD and ND but higher local recurrence incidence compared to HER2-negative patients.

Detailed Description

Not available

Recruitment & Eligibility

Status
Complete: follow-up complete
Sex
All
Target Recruitment
439
Inclusion Criteria

Not provided

Exclusion Criteria

patients with undetermined genetic phenotype

Study & Design

Study Type
Observational
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
oss of functional independence Neurological death
Secondary Outcome Measures
NameTimeMethod
Overall survival, tumor control, tumor recurrence, radiation injury, distant recurrence
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