Tolerability of the Combination of Lapatinib and Trastuzumab in Adults Age 60 or Older With HER2 Positive Locally Advanced or Metastatic Breast Cancer

Breast Neoplasms Clinical Trial

Official title: Tolerability of the Combination of Lapatinib and Trastuzumab in Adults Age 60 or Older With HER2 Positive Locally Advanced or Metastatic Breast Cancer

Status Active, not recruiting

Clinical Trial Summary

This phase II trial studies the side effects and how well lapatinib ditosylate and trastuzumab work in treating older patients with human epidermal growth factor receptor 2 (HER2)-positive breast cancer that has spread from where it started to nearby tissue or lymph nodes (locally advanced) or to other parts of the body (metastatic). Lapatinib ditosylate may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Monoclonal antibodies, such as trastuzumab, can block tumor growth in different ways. Some block the ability of tumor to grow and spread. Others find tumor cells and help kill them or tumor cancer-killing substances to them. Giving lapatinib ditosylate together with trastuzumab may kill more tumor cells.

Clinical Trial Description

PRIMARY OBJECTIVES: I. To estimate the safety and tolerability of the combination of trastuzumab and lapatinib (lapatinib ditosylate) in adults age 60 or older with locally advanced or metastatic breast cancer. SECONDARY OBJECTIVES: I. To describe the full toxicity profile including all grades; to estimate the rate of all grades of cardiac toxicity; to estimate the rate of all grades of diarrhea, nausea, and vomiting. II. To describe the pharmacokinetic parameters of lapatinib in older adults. III. To estimate objective response rate and clinical benefit rate as defined by modified Response Evaluation Criteria In Solid Tumors (RECIST) criteria. IV. To estimate median progression-free and overall survival. V. To explore factors other than chronological age that can affect toxicity rates as identified using a cancer-specific geriatric assessment. VI. To estimate rates of adherence to lapatinib in older adults.

OUTLINE: Patients receive lapatinib ditosylate orally (PO) once daily (QD) and trastuzumab intravenously (IV) over 30-90 minutes once weekly OR once every 3 weeks. Courses repeat every 21 days in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up for 30 days and then periodically thereafter. ;

Related Conditions & MeSH terms

• Breast Neoplasms
• Geriatric Health Services
• HER2/Neu Positive

• NCT number: NCT01273610
• Study type: Interventional
• Source: City of Hope Medical Center
• Status: Active, not recruiting
• Phase: Phase 2
• Start date: April 20, 2011
• Completion date: February 22, 2025