A Study of the Efficacy and Safety of Trastuzumab Emtansine (Trastuzumab-MCC-DM1) vs. Trastuzumab (Herceptin®) and Docetaxel (Taxotere®) in Patients With Metastatic HER2-positive Breast Cancer Who Have Not Received Prior Chemotherapy for Metastatic Disease
Summary
This was a Phase II, randomized, multicenter, international, 2-arm, open-label clinical trial designed to explore the efficacy and safety of trastuzumab emtansine (T-DM1) relative to the combination of trastuzumab and docetaxel in patients with human epidermal growth factor receptor 2 (HER2)-positive, unresectable, locally advanced breast cancer and/or metastatic breast cancer who have not received prior chemotherapy for metastatic disease.
Timeline
- Start
- 2008-09
- Primary completion
- 2010-11
- Completion
- 2012-05
Outcome
Met primary endpoint
paper Median PFS was 9.2 months with HT and 14.2 months with T-DM1 (hazard ratio, 0.59; 95% CI, 0.36 to 0.97) PMID 23382472 ↗
paper In this randomized phase II study, first-line treatment with T-DM1 for patients with HER2-positive MBC provided a significant improvement in PFS, with a favorable safety profile, versus HT. PMID 23382472 ↗
Publications
- Perez EA, Hurvitz SA, Amler LC, Mundt KE, Ng V, Guardino E, Gianni L. Relationship between HER2 expression and efficacy with first-line trastuzumab emtansine compared with trastuzumab plus docetaxel in TDM4450g: a randomized phase II study of patients with previously untreated HER2-positive metastatic breast cancer. Breast Cancer Res. 2014 May 23;16(3):R50. doi: 10.1186/bcr3661.
- Hurvitz SA, Dirix L, Kocsis J, Bianchi GV, Lu J, Vinholes J, Guardino E, Song C, Tong B, Ng V, Chu YW, Perez EA. Phase II randomized study of trastuzumab emtansine versus trastuzumab plus docetaxel in patients with human epidermal growth factor receptor 2-positive metastatic breast cancer. J Clin Oncol. 2013 Mar 20;31(9):1157-63. doi: 10.1200/JCO.2012.44.9694. Epub 2013 Feb 4.
Drugs
| Evaluation | Drug | Modality | Dose | Route |
|---|---|---|---|---|
| Comparator | Docetaxel | Small molecule | 75 mg/m2 | Intravenous |
| Comparator | Docetaxel | Small molecule | 100 mg/m2 | Intravenous |
| Comparator | Trastuzumab | Monoclonal antibody | 6 mg/kg | Intravenous |
| Subject | Trastuzumab emtansine | Other / unclassified | 3.6 mg/kg | Intravenous |