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Molecular Features Predicting Response/Resistance to Trastuzumab in Metastatic Breast Cancer Patients

Observational Study Assessing Molecular Features Predicting Response/Resistance to Trastuzumab in Metastatic Breast Cancer Patients

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT00740532
Enrollment
11
Registered
2008-08-25
Start date
2007-10-31
Completion date
2010-08-31
Last updated
2010-09-02

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

Conditions

Breast Cancer

Keywords

EGFR, HER-2, HER-3, MET, KRAS

Brief summary

Aim of the study is to assess the impact on response to Herceptin-based therapy in patients with advanced breast cancer. Tumor specimens from primary breast cancer will be analized for several biological factors potentially involved in Herceptin sensitivity. Tests that will be performed include: FISH analyses of EGFR, HER-2, HER-3, C-MYC, PTEN, MET, IGFR-1. Immunofluorecence of P95HER2. Mutation analyses of EGFR, HER-2, MET, C-MYC, PTEN, KRAS, PIK3CA, IGFR-1. Immunohistochemistry of the same biomarkers.

Interventions

GENETICGene mutation analyses and FISH

FISH and mutation analyses of multiple genes

Sponsors

Istituto Clinico Humanitas
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
RETROSPECTIVE

Eligibility

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

Inclusion criteria

* Hystological diagnosis of breast cancer * Availability of tumor tissue * Availability to assess the response to Trastuzumab according to RECIST criteria * Availability of clinical data

Exclusion criteria

* Unavailability of tumor tissue * Impossibility to assess the response to Trastuzumab according to RECIST criteria

Design outcomes

Primary

MeasureTime frame
Association of a specific biomarker with response to Herceptin-based therapyResponse after two months of treatment

Secondary

MeasureTime frame
Association of a specific biomarker with time to progression survival and patient's characteristicsAt the end of enrollment

Countries

Italy

Outcome results

None listed

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