Expert panel consensus statement on the optimal use of pomalidomide in relapsed and refractory multiple myeloma

M A Dimopoulos, X Leleu, A Palumbo, P Moreau, M Delforge, M Cavo, H Ludwig, G J Morgan, F E Davies, P Sonneveld, S A Schey, S Zweegman, M Hansson, K Weisel, M V Mateos, T Facon, J F S Miguel, M A Dimopoulos, X Leleu, A Palumbo, P Moreau, M Delforge, M Cavo, H Ludwig, G J Morgan, F E Davies, P Sonneveld, S A Schey, S Zweegman, M Hansson, K Weisel, M V Mateos, T Facon, J F S Miguel

Abstract

In this report, a panel of European myeloma experts discuss the role of pomalidomide in the treatment of relapsed and refractory multiple myeloma (RRMM). Based on the available evidence, the combination of pomalidomide and low-dose dexamethasone is a well-tolerated and effective treatment option for patients with RRMM who have exhausted treatment with lenalidomide and bortezomib. The optimal starting dose of pomalidomide is 4 mg given on days 1-21 of each 28-day cycle, whereas dexamethasone is administered at a dose of 40 mg weekly (reduced to 20 mg for patients aged >75 years). The treatment should continue until evidence of disease progression or unacceptable toxicity. Dose-modification schemes have been established for patients who develop neutropenia, thrombocytopaenia and other grade 3-4 adverse events during pomalidomide therapy. Guidance on the prevention and management of infections and venous thromboembolism is provided, based on the available clinical evidence and the experience of panel members. The use of pomalidomide in special populations, such as patients with advanced age, renal impairment or unfavourable cytogenetic features, is also discussed.

Figures

Figure 1
Figure 1
Treatment algorithm for patients who have failed prior therapy for RRMM. BORT, bortezomib; LEN, lenalidomide; POM/LoDEX, pomalidomide plus low-dose dexamethasone.
Figure 2
Figure 2
Recommended pomalidomide dose modifications for neutropenia. The minimum blood levels required to start treatment with pomalidomide at the full dose of dose 4 mg are ANC ⩾1 × 109/l; platelets ⩾75/109/l or ⩾30 if ⩾50% of bone marrow nucleated cells are plasma cells. It is not recommended to give pomalidomide in doses <1 mg. ANC, absolute neutrophil count; CBC, complete blood count; G-CSF, granulocyte colony-stimulating factor. aFebrile neutropenia is defined as fever ⩾38.5 °C and ANC <1 × 109/l. bG-CSF cycle; 300 μg/kg for 3 days (days 22–24 of each 28-day cycle).
Figure 3
Figure 3
Recommended pomalidomide dose modifications for thrombocytopaenia. The minimum blood levels required to start treatment with pomalidomide at the full dose of dose 4 mg are ANC ⩾1 × 109/l; platelets ⩾75/109/l or ⩾30 if ⩾50% of bone marrow nucleated cells are plasma cells. It is not recommended to give pomalidomide in doses <1 mg. CBC, complete blood count. aConsider frequent platelet transfusions.
Figure 4
Figure 4
Recommendations for determining appropriate thrombosis prophylaxis in patients with RRMM treated with POM/LoDEX. LMWH, low-molecular-weight heparin; POM/LoDEX, pomalidomide plus low-dose dexamethasone; VTE, venous thromboembolism.
Figure 5
Figure 5
Recommended pomalidomide dose modifications for other nonhaematological adverse events.,
Figure 6
Figure 6
Considerations for initiation of pomalidomide plus low-dose dexamethasone therapy. G-CSF, granulocyte colony-stimulating factor; VTE, venous thromboembolism. aPatients >75 years of age should receive dexamethasone 20 mg weekly; younger patients should receive a dose of 40 mg weekly. bG-CSF use may be considered for the first three cycles to prevent neutropenia. cThe recommended starting dose of pomalidomide is 4 mg/day, regardless of the presence of comorbidity. dAntibiotic prophylaxis may be considered for the first three cycles of therapy to reduce the risk of infection. eThromboprophylaxis should be considered for all patients receiving pomalidomide plus low-dose dexamethasone to reduce the risk of VTE.

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Source: PubMed

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