Daratumumab, a CD38 human monoclonal antibody, demonstrated significant clinical activity in combination with bortezomib and dexamethasone versus bortezomib and dexamethasone alone in the primary analysis of CASTOR, a phase 3 study in relapsed and/or refractory multiple myeloma. A post hoc analysis based on treatment history and longer follow-up is presented. After 19.4 (range: 0 to 27.7) months of median follow-up, daratumumab plus bortezomib and dexamethasone prolonged progression-free survival (median: 16.7 versus 7.1 months; hazard ratio, 0.31; 95% confidence interval, 0.24-0.39; P <0.0001) and improved the overall response rate (83.8% versus 63.2%; P <0.0001) compared with bortezomib and dexamethasone alone. The progression-free survival benefit of daratumumab plus bortezomib and dexamethasone was most apparent in patients with 1 prior line of therapy (median: not reached versus 7.9 months; hazard ratio, 0.19; 95% confidence interval, 0.12-0.29; P <0.0001). Daratumumab plus bortezomib and dexamethasone was also superior to bortezomib and dexamethasone alone in subgroups based on prior treatment exposure (bortezomib, thalidomide, or lenalidomide), lenalidomide-refractory status, time since last therapy (≤12, >12, ≤6, or >6 months), or cytogenetic risk. Minimal residual disease-negative rates were >2.5-fold higher with daratumumab across subgroups. The safety profile of daratumumab plus bortezomib and dexamethasone remained consistent with longer follow-up. Daratumumab plus bortezomib and dexamethasone demonstrated significant clinical activity across clinically relevant subgroups and provided the greatest benefit to patients treated at first relapse.
Daratumumab plus bortezomib and dexamethasone versus bortezomib and dexamethasone in relapsed or refractory multiple myeloma: updated analysis of CASTOR / A. Spencer, S. Lentzsch, K. Weisel, H. Avet-Loiseau, T.M. Mark, I. Spicka, T. Masszi, B. Lauri, M. Levin, A. Bosi, V. Hungria, M. Cavo, J. Lee, A.K. Nooka, H. Quach, C. Lee, W. Barreto, P. Corradini, C. Min, E.C. Scott, A.A. Chanan-Khan, N. Horvath, M. Capra, M. Beksac, R. Ovilla, J. Jo, H. Shin, P. Sonneveld, D. Soong, T. Casneuf, C. Chiu, H. Amin, M. Qi, P. Thiyagarajah, A.K. Sasser, J.M. Schecter, M. Mateos. - In: HAEMATOLOGICA. - ISSN 0390-6078. - 103:12(2018 Nov 30), pp. 2079-2087.
|Titolo:||Daratumumab plus bortezomib and dexamethasone versus bortezomib and dexamethasone in relapsed or refractory multiple myeloma: updated analysis of CASTOR|
|Parole Chiave:||Cytogenetics and Molecular Genetics; Minimal Residual Disease; Multiple Myeloma; Quality of Life; prior therapy|
|Settore Scientifico Disciplinare:||Settore MED/15 - Malattie del Sangue|
|Data di pubblicazione:||30-nov-2018|
|Data ahead of print / Data di stampa:||20-set-2018|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.3324/haematol.2018.194118|
|Appare nelle tipologie:||01 - Articolo su periodico|