Study of the Combination of Panobinostat and Carfilzomib in Patients With Relapsed/Refractory Multiple Myeloma

In this open-label, non-randomized Phase I/II study, a maximum of 4 planned dose levels of carfilzomib and panobinostat were evaluated to determine the maximum tolerated dose (MTD) to administer. The MTD was not reached so patients in Phase II received treatment at dose level 4 to further assess efficacy. Response to treatment was evaluated after each 4-week cycle. Those having an objective response or stable disease are continuing treatment until disease progression or unacceptable toxicity occurs. As the MTD in the 4 planned dose levels were not reached, a parallel Phase I study was initiated to examine additional dose levels using a traditional 3+3 design. If these dose levels are tolerable, then more patients will be recruited into an expansion cohort to assess efficacy at the new dose level(s).