The purpose of this study is to investigate the anti-myeloma effect of panobinostat given at two different doses (10 mg and 20 mg oral) in combination with carfilzomib (20/56 mg/m2 i.v.) and low dose dexamethasone (20 mg oral) vs carfilzomib plus low-dose dexamethasone in patients with relapsed or relapsed and refractory multiple myeloma. Safety and efficacy will be evaluated. Treatment will be administered in 4-week cycles until patients discontinue due to disease progression or unacceptable toxicity or for other reasons. Patients who discontinue the study treatment for reasons other than documented disease progression will be followed for disease assessments every 8 weeks until progression. All patients will be followed for survival until 3 years have passed from their entry into the study, or they have discontinued the follow up earlier.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Panobinostat capsules, oral: 10mg, 15mg, 20mg dosing 3x a week, 1 week on / 1 week off, in a 4 week cycle (28 days). Treatment arm A: only capsules of 10mg will be used Treatment arm B: capsules of 10mg and 15mg are foreseen for dose reduction only.
Carfilzomib infusion; 20 mg/m2 i.v. on C1D1 and C1D2; 56 mg/m2 i.v. on subsequent dosing days (2x a week; 3 weeks on/1 weeks off ); 4 week cycle (28 days)
Dexamethasone tablets p.o. 20 mg on days of carfilzomib infusion (2x week) and on D22 and D23 of each 4 week cycle (28 days)
Overall response rate (ORR) using investigator's response assessment
The primary endpoint if Overall Response Rate (ORR) using investigator response assessment according to IMWG criteria. The analysis of ORR will be performed after all randomized patients have completed 6 months of study treatment or discontinued treatment earlier.
Time frame: All patients treated for 6 cycles (cycle=28 days)
Very Good Partial Response (VGPR) or better as best response using investigator response assessment based on International Myeloma Working Group (IMWG) criteria
Investigators' response assessment assessed on IMWG criteria will be used. The VGPR or better rate is defined as the proportion of patients with a confirmed VGPR or better response as their best overall response.
Time frame: All patients treated for 6 cycles (cycle=28 days)
Progression-free survival (PFS) using investigator's response assessment based on IMWG criteria
PFS is defined as the time from date of randomization to date of first documented disease progression or death (regardless of cause of death).
Time frame: All patients treated for 6 cycles (cycle=28 days)
Overall survival (OS)
OS is defined as the time from date of randomization to the date of death due to any cause. If a patient is not known to have died, survival will be censored at the date of last contact.
Time frame: All patients treated for 6 cycles (cycle=28 days)
Time to response (TTR) using investigator's response assessment based on IMWG criteria
TTR is the time between date of randomization to the date of first onset of partial response (PR) or better response.
Time frame: All patients treated for 6 cycles (cycle=28 days)
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Duration of Response (DOR) using investigator's response assessment based on IMWG criteria
DOR is defined as the duration from the first documented onset of PR or better response the date of first documented disease progression or death due to multiple myeloma. DOR will use only the patients with PR or better as their best response.
Time frame: All patients treated for 6 cycles (cycle = 28 days)
Time to progression (TTP) using investigator's response assessment based on IMWG criteria
TTP is defined as the time from the date of randomization to the ate of the first documented disease progression or death due to multiple myeloma.
Time frame: All patients treated for 6 cycles (cycle = 28 days)
Time to reach Cmax for panobinostat (PAN) and carfilzomib (CFZ)
The maximum (peak) observed plasma concentration after single and multiple dose administration (ng/mL) of PAN and CFZ.
Time frame: All patients treated for 6 cycles (cycle=28 days);
Minimum observed plasma concentration (Cmin) for carfilzomib
The minimum (trough) observed plasma concentration after single and multiple dose administration (ng/mL) of PAN and CFZ.
Time frame: All patients treated for 6 cycles (cycle=28 days)
Concentration of panobinostat in blood plasma in 48 hrs after the dose.
The area under the concentration-time curve (AUC) from time zero to 48 hours (ng\*h/mL) after the dose of PAN
Time frame: All patients treated for 6 cycles (cycle = 28 days)
Total carfilzomib exposure over time in blood plasma .
The AUC from time zero to infinity (ng\*h/mL) for CFZ.
Time frame: All patients treated for 6 cycles (cycle=28 days)
Health related quality of life (HRQoL) change over time measured by EORTC questionnaire QLQ-C30 and QLQ-MY20 for disease symptoms
HRQoL questionnaires are patient reported outcomes, which provide functional assessment of cancer therapy.
Time frame: All patients treated for 6 cycles (cycle=28 days)