Conditions: Breast Cancer
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 24
Healthy volunteers: no

Brief summary:
This open-label, randomized, parallel arm study will evaluate the effect of capecitabine administered concurrently with WBRT and as maintenance therapy in participants with breast cancer and newly diagnosed brain metastases. Participants will be randomized to receive either capecitabine with 10 days standard WBRT, or WBRT alone. Maintenance therapy will follow with capecitabine or another systemic therapy in the WBRT only group.

Detailed description:

Arms:
arm 1: Participants will receive 3000 centi-Gray (cGy) WBRT in 10 single daily fractions over 12 to 14 days (300 cGy / fraction) followed by standard of care therapy at the discretion of the treating oncologist starting no earlier than 2 weeks after completion of WBRT. The participants will be followed during the treatment until the halting of standard of care for any reason (central nervous system \[CNS\] or extra-cranial tumor progression, unacceptable toxicity, change of therapeutic strategy, withdrawal of participant consent, or death). arm 2: Participants will receive 3000 cGy WBRT in 10 single daily fractions over 12 to 14 days (300 cGy / fraction) concurrent with capecitabine 825 milligrams per square meter (mg/m\^2) orally twice daily, Days 1-14 of a 21 day cycle for 1 cycle followed by capecitabine 1000 mg/m\^2 orally twice daily Days 1-14 every 21 days starting with Cycle 2, one week after completion of WBRT and continuing until the halting of capecitabine for any reason (CNS or extra-cranial progression, unacceptable toxicity, withdrawal of participant consent or death).

Interventions: intervention 1: WBRT intervention 2: Capecitabine intervention 3: Standard of Care
Intervention descriptions: intervention 1: 3000 cGy WBRT in 10 single daily fractions over 12 to 14 days (300 cGy / fraction). intervention 2: 825 mg/m\^2 orally twice daily, Days 1-14 of a 21 day cycle for 1 cycle followed by 1000 mg/m\^2 orally twice daily Days 1-14 every 21 days starting with Cycle 2. intervention 3: The choice of standard of care will be at the discretion of the treating oncologist. The protocol does not specify any particular standard of care treatment.

Protocol document: