Conditions: Breast Cancer
Keywords: Broccoli Sprout Extract Breast Cancer
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 34
Healthy volunteers: no

Brief summary:
The purpose of this research is to examine the effect of a broccoli sprout preparation on specific factors in breast tissue that are related to breast cancer risk and to assess whether sulforaphane a key component of broccoli sprouts increases the levels of protective enzymes in breast tissue. In addition, the investigators will also examine how acceptable the broccoli sprouts preparation is to the study participants.

Detailed description:
A double-blind randomized Phase II chemoprevention trial of BSE versus placebo will be conducted in up to 35 women diagnosed with DCIS on core biopsy prior to their definitive surgery (study diagram below). The primary study endpoint will be a decrease in the mean proliferative rate measured by Ki67%.

Women diagnosed with DCIS on core or incisional/excisional biopsy scheduled for definitive surgery at Johns Hopkins Hospital will be recruited for this study. Participants will be placed on a cruciferous free diet for the 14 days prior to their surgical date and drink a randomized intervention beverage (mango juice with or without broccoli sprout extract). Additionally participants will provide 2 blood and 2 urine sample collections, report medication use and adverse events using prepared forms and complete a daily diet check list during the 14 day intervention. On the day of definitive breast surgery, 1-2 grams of breast tissue (including normal adjacent breast tissue) will be collected during surgery.

Arms:
arm 1: Patients will be randomized to 14 day intervention of broccoli sprout extract and mango juice consisting of a dose of 100 µmols of sulforaphane dissolved in 150 mL mango juice once a day. arm 2: Patients will be randomized to 14 day intervention of 150 mL mango juice without broccoli sprout extract extract once a day.

Interventions: intervention 1: Broccoli sprout extract intervention 2: Mango juice
Intervention descriptions: intervention 1: 100 µmols of sulforaphane (dissolvable) intervention 2: 150 mL of mango juice

Protocol document: