Overview Lapatinib for Treatment of Ductal Carcinoma In Situ (DCIS) of the Breast Status: Terminated Trial end date: 2010-08-01 Target enrollment: Participant gender: Summary The purpose of this study is to establish the utility of lapatinib in the treatment of DCIS, particularly ER-negative DCIS. Phase: N/A Details Lead Sponsor: Indiana UniversityCollaborator: GlaxoSmithKlineTreatments: Lapatinib