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Genetic Expression and Prediction of Response to Neoadjuvant Docetaxel or Doxorubicin in Locally Advanced Breast Cancer

Patterns of Genetic Expression Associated to Sensibility to Doxorubicin Versus Docetaxel as Neoadjuvant Chemotherapy for Locally Advanced Breast Cancer

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00123929
Enrollment
250
Registered
2005-07-26
Start date
2005-01-31
Completion date
2009-05-31
Last updated
2009-08-06

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

Conditions

Breast Cancer

Keywords

breast cancer, neoadjuvant chemotherapy, genetic signature, doxorubicin, docetaxel

Brief summary

After a core biopsy of the tumor is obtained, patients with locally advanced breast cancer are randomized to receive 4 cycles of full dose doxorubicin (75 mg/m2 e3w) or docetaxel (100 mg/m2 e3w). After the fourth cycle, patients are submitted to surgery to ascertain pathological response. They then receive the opposite drug, hormones, Herceptin, and radiation as indicated.

Detailed description

The aim of the study is to define the genetic signature which predicts the response to single drug doxorubicin versus docetaxel. 250 patients will be included. cDNA microarrays will be produced and the genetic pattern will be correlated with the response to doxorubicin and docetaxel. Secondary aim is the prediction of response by means of IHC determinations (her2, ER, PgR, Ki67, protein TAU), FISH (topoisomerase II alpha, her2) and PCR (topoisomerase II alpha).

Interventions

DRUGdocetaxel

100 mg/m2 every 3 weeks times 4

DRUGdoxorubicin

75 mg/m2 every 3 weeks times 4

Sponsors

UNC Lineberger Comprehensive Cancer Center
CollaboratorOTHER
Hospital San Carlos, Madrid
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Locally advanced, inoperable breast carcinoma or stage II not amenable to breast preserving surgery (amendment introduced on november 2006) * Signed informed consent

Exclusion criteria

* Age \>75 * Cardiac disease; LEFT \<50% * Hyperbilirubinemia

Design outcomes

Primary

MeasureTime frame
correlation of genetic tumoral pattern with response to docetaxel versus doxorubicin2005-2009

Secondary

MeasureTime frame
response rate to doxorubicin versus docetaxel2005-2013

Countries

Spain

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 5, 2026