A Window of Opportunity Study of Methionine Deprivation in Triple Negative Breast Cancer

Breast Cancer Clinical Trial

Official title: A Window of Opportunity Study of Methionine Deprivation in Triple Negative Breast Cancer

Status Terminated

Clinical Trial Summary

Given preliminary data demonstrating that methionine deprivation enhances cell surface expression of TRAIL receptor-2, the objective of this clinical trial is to confirm that methionine restriction enhances its expression in triple negative breast cancer and to establish the feasibility and acceptability of this dietary intervention in humans. This study will also examine the effect of methionine restriction on cancer stem cells and metabolic health.

Clinical Trial Description

Under the supervision of a registered dietitian, subjects will receive an individualized dietary prescription that incorporates a methionine-free amino acid-modified medical food (Hominex-2, Abbott Nutrition) supplemented with low-methionine foods. Hominex-2 contains a mixture of L-amino acids but lacks methionine. Subjects will be instructed in the preparation of Hominex-2 beverages (approximately 4-5 per day or per dietician recommendation) to deliver 100% of daily protein requirements (0.8 g/kg/day) and 40-45% of the caloric requirements. The remaining calories will be met with low-methionine foods, including fruits, vegetables, grains (e.g., specified cereal and bread), margarine and cooking oils. Subjects will be provided with a list of foods that are low in methionine. Calories will not be restricted. Subjects will be encouraged to follow their usual level of physical activity and instructed to maintain a daily diet and exercise diary that will be reviewed weekly by the dietitian. ;

Related Conditions & MeSH terms

• Breast Cancer
• Breast Neoplasms
• Triple Negative Breast Cancer
• Triple Negative Breast Neoplasms

• NCT number: NCT03186937
• Study type: Interventional
• Source: University of Wisconsin, Madison
• Status: Terminated
• Phase: Phase 2
• Start date: August 10, 2017
• Completion date: June 21, 2019