Phase 2 Neoadjuvant Doxorubicin and Cyclophosphamide -> Docetaxel With Lapatinib in Stage II/III Her2Neu+ Breast Cancer

Breast Cancer Clinical Trial

Official title: Phase II Neoadjuvant Chemotherapy Trial in Clinical Stage II/III Her2Neu Positive Breast Cancer With Sequential AC -> Docetaxel With Concurrent Dual EGFR Kinase Blockade by GW572016 (Lapatinib) Followed by 1 Year Adjuvant Trastuzumab

Status Completed

Clinical Trial Summary

This trial combines dose dense chemotherapy with doxorubicin and cyclophosphamide (AC) followed by standard, every 3 week docetaxel and GW572016 (lapatinib) for neoadjuvant treatment of Her2neu positive stage II/III breast cancer. The purpose of the study was to determine whether lapatinib combined with chemotherapy was safe and resulted in an increase in pathologic complete response rates.

Clinical Trial Description

Lapatinib acts as a dual inhibitor of both epidermal growth factor receptor (EGFR) and ErbB-2 (Her2/neu) tyrosine kinase activity. EGFR and ErbB2 receptors are frequently over-expressed or altered in human cancers including breast cancer. This study plans to determine the antitumor activity of this regimen and its effectiveness preventing tumor growth and spread.

Neoadjuvant chemotherapy which achieves pathologic complete responses (pCR) has been shown to predict improved long-term survival and serves as a surrogate for clinical outcome. By using this primary endpoint we can obtain statistical data with smaller patient numbers and at a lower overall cost. Additionally, we hope to correlate clinical and radiologic outcomes with gene expression data. ;

Related Conditions & MeSH terms

• Breast Cancer
• Breast Neoplasms
• Metastatic Breast Cancer

• NCT number: NCT00404066
• Study type: Interventional
• Source: Stanford University
• Status: Completed
• Phase: Phase 2
• Start date: October 2006
• Completion date: March 2011