WILMINGTON, Del.--(BUSINESS WIRE)--Incyte Corporation (Nasdaq:INCY) announced today positive results from an ongoing Phase I/II clinical trial for its selective oral sheddase inhibitor, INCB7839, involving 46 patients with HER2 positive metastatic breast cancer. The results suggest that, when compared to a historical control study of trastuzumab as monotherapy, INCB7839 in combination with trastuzumab provided improvements in time to progression and response rate in patients with HER2 positive metastatic breast cancer. These improved outcomes were achieved despite the presence of more advanced disease in the study population when compared to the historical control (Baselga et al, 2005).