Study of Lapatinib in Breast Cancer Patients With HER-2 Non-amplified Primary Tumors and HER-2 Positive or EGFR Positive Circulating Tumor Cells

Summary

The underlying biology of the various patterns of metastasis observed in different tumour types remains unclear. The detection and characterization of circulating tumour cells in cancer patients has provided important new information about the progression of metastatic events. This information has important implications for cancer prognosis and therapy. This multicenter open-label study is designed as a two-stage three-outcome phase II trial. The aim is to evaluate the efficacy and safety of daily dose of Lapatinib in advanced breast cancer patients with HER-2 non-amplified primary tumours and HER-2 or EGFR positive circulating tumour cells. Evaluation of HER-2 and EGFR status on circulating tumour cells will be performed by the means of the CellSearch equipment (Immunicon, Huntingdon Valley, PA, USA) and FISH method (PathVysion Kit -Abbott Laboratories).

Timeline

Start

2008-06

Primary completion

2011-07

Completion

2011-07

Outcome

Missed primary endpoint

paper There were no responses leading to termination at the first analysis PMID 23667487 ↗

Publications

• Stebbing J, Payne R, Reise J, Frampton AE, Avery M, Woodley L, Di Leo A, Pestrin M, Krell J, Coombes RC. The efficacy of lapatinib in metastatic breast cancer with HER2 non-amplified primary tumors and EGFR positive circulating tumor cells: a proof-of-concept study. PLoS One. 2013 May 7;8(5):e62543. doi: 10.1371/journal.pone.0062543. Print 2013.
• Pestrin M, Bessi S, Puglisi F, Minisini AM, Masci G, Battelli N, Ravaioli A, Gianni L, Di Marsico R, Tondini C, Gori S, Coombes CR, Stebbing J, Biganzoli L, Buyse M, Di Leo A. Final results of a multicenter phase II clinical trial evaluating the activity of single-agent lapatinib in patients with HER2-negative metastatic breast cancer and HER2-positive circulating tumor cells. A proof-of-concept study. Breast Cancer Res Treat. 2012 Jul;134(1):283-9. doi: 10.1007/s10549-012-2045-1. Epub 2012 Apr 4.

Drugs

Indications