Rogaratinib, Palbociclib y Fulvestrant in Patients With Breast Cancer.

"Patients will receive rogaratinib, palbociclib and fulvestrant in cycles of 28 days.~Escalation Dose will follow a classic 3+3 schedule.The planned dose-levels are as follows:~* Level 1: Rogaratinib 400 mg PO BID + standard fulvestrant 500 mg every 2nd weeks until the start of the 2nd cycle, becoming every 4 weeks + palbociclib 100 mg PO per day until day 22 followed by a 7-day rest, escalable to 125 mg per day in cycle 2 (N = 3 patients).~* Level 2: Rogaratinib 600 mg PO BID + fulvestrant 500 mg IM every 2nd weeks until the start of the 2nd cycle, becoming every 4 weeks + palbociclib 100 mg PO per day until day 22 followed by a 7-day rest, escalable to 125 mg per day in cycle 2 (N = 6 patients).~Treatment will continue until disease progression."