Double-Blind, Placebo-Controlled, Randomized Phase II Trial of IH636 Grape Seed Proanthocyanidin Extract (GSPE) in Patients With Adverse Effects of High Dose Breast Radiotherapy

OBJECTIVES:

• Determine the efficacy of IH636 grape seed proanthocyanidin extract for the treatment of radiation-induced fibrosis after high-dose radiotherapy in women with a history of early breast cancer.

OUTLINE: This is a randomized, double-blind, placebo-controlled study. Patients are stratified according to time since prior radiotherapy. Patients are randomized to 1 of 2 arms.

• Arm I: Patients receive oral IH636 grape seed proanthocyanidin extract three times daily for 6 months.
• Arm II: Patients receive an oral placebo three times daily for 6 months. Patients are followed at 6 months.

PROJECTED ACCRUAL: A total of 72 patients (48 for arm I and 24 for arm II) will be accrued for this study.