Statement: Only one the primary trial patient treated with oral lapatinib and oral tamoxifen achieved either Complete and Partial tumour response.
Primary_evidence: Outcome Measurement:    Tumor Response Rate (Complete and Partial) Assessed by Response Evaluation Criteria in Solid Tumors (RECIST)   [Not Specified]   Time frame: 4 weeks Results 1:    Arm/Group Title: Arm 1   Arm/Group Description: Patients receive oral lapatinib and oral tamoxifen once daily on days 1-28.   lapatinib ditosylate: Given orally   tamoxifen citrate: Given orally   Overall Number of Participants Analyzed: 17   Measure Type: Number   Unit of Measure: participants  1        (1 to 27)