Multiple myeloma
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: • Patients with relapsed/refractory multiple myeloma, who are eligible for a treatment regimen which contains pomalidomide. Either monotherapy or in combination with bortezomib, daratumumab, cyclophosphamide, or elotuzumab. • Patients who received a minimum of two cycles of pomalidomide 4mg every day on day 1-21/28. • Age > 18 years • WHO performance status 0-3 • Written informed consent
Exclusion criteria
Exclusion criteria: • Usage of CYP1A2 inhibitors (e.g. ciprofloxacin, enoxacin, ketoconazole, carbamazepine, fluvoxamine, and grapefruit juice) • Renal insufficiency requiring dialysis • Significant hepatic dysfunction (total bilirubin =>30 micromol/l or transaminases => 3 times normal level) • Current smoker • Thrombocytes
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The AUC/MIC ratio and the level of the Ctrough during usage of pomalidomide 4 mg QD on day 1-21, 4 mg EOD on day 1-21, and 2 mg QD on day 1-28 in cycles of 28 days. | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary endpoints: - Other PK parameters (Cmax and time above EC50) during usage of pomalidomide 4 mg QD on day 1-21, 4 mg EOD on day 1-21, and 2 mg QD on day 1-28 in cycles of 28 days. - Toxicity and side effects during usage of pomalidomide 4 mg every day on day 1-21, pomalidomide 4 mg every other day on day 1-21, and pomalidomide 2 mg every day on day 1-28 in cycles of 28 days. - Overall response rate (ORR) Explorative endpoints: - T-cell activation, defined as the expression of membrane activation markers and cytokine markers during usage of pomalidomide 4 mg every day on day 1-21, pomalidomide 4 mg every other day on day 1-21, and pomalidomide 2 mg every day on day 1-28 in cycles of 28 days. - Ikaros/Aiolos degradation as a biological measurement of pomalidomide activation during usage of pomalidomide 4 mg every day on day 1-21, pomalidomide 4 mg every other day on day 1-21, and pomalidomide 2 mg every day on day 1-28 in cycles of 28 days. - Concentration of pomalidomide in PBMCs during usage of pomalidomide 4 mg every day on day 1-21, pomalidomide 4 mg every other day on day 1-21, and pomalidomide 2 mg every day on day 1-28 in cycles of 28 days. | — |
Countries
Netherlands