Efficacy of bendamustine and rituximab as first salvage treatment in chronic lymphocytic leukemia and indirect comparison with ibrutinib: a GIMEMA, ERIC and UK CLL FORUM study
EHA Learning Center. Cuneo A. Jul 1, 2018; 224113
Topic: 3Aj Chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL)
Antonio Cuneo
Antonio Cuneo
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Co-Authors: George Follows, Gian Matteo Rigolin, Alfonso Piciocchi, Alessandra Tedeschi, Livio Trentin, Angeles Medina Perez, Marta Coscia, Luca Laurenti, Gerardo Musuraca, Lucia Farina, Alfredo Rivas Delgado, Ester Maria Orlandi, Piero Galieni, Francesca Romana Mauro, Carlo Visco, Angela Amendola, Atto Billio, Roberto Marasca, Annalisa Chiarenza, Vittorio Meneghini, Fiorella Ilariucci, Monia Marchetti, Stefano Molica, Francesca Re, Gianluca Gaidano, Marcos Gonzalez, Francesco Forconi, Stefania Ciolli, Agostino Cortelezzi, Marco Montillo, Lukas Smolej, Anna Schuh, Toby A. Eyre, Ben Kennedy, Kris M. Bowles, Marco Vignetti, Javier de la Serna, Carol Moreno, Robin Foà, Paolo Ghia

Abstract: We performed an observational study on the efficacy of ben-damustine and rituximab (BR) as first salvage regimen in chronic lymphocytic leukemia (CLL). In an intention-to-treat analysis including 237 patients, the median progression-free survival (PFS) was 25 months. The presence of del(17p), unmutated IGHV and advanced stage were associated with a shorter PFS at multivariate analysis. The median time-to-next treatment was 31.3 months. Front-line treatment with a chemoimmunotherapy regimen was the only predictive factor for a shorter time to next treatment at multivariate analysis. The median overall survival (OS) was 74.5 months. Advanced disease stage (i.e. Rai stage III-IV or Binet stage C) and resistant disease were the only parameters significantly associated with a shorter OS. Grade 3-5 infections were recorded in 6.3% of patients. A matched-adjusted indirect comparison with ibrutinib given second-line within Named Patient Programs in the United Kingdom and in Italy was carried out with OS as objective end point. When restricting the analysis to patients with intact 17p who had received chemoimmunotherapy in first line, there was no difference in OS between patients treated with ibrutinib (63% alive at 36 months) and patients treated with BR (74.4% alive at 36 months). BR is an efficacious first salvage regimen in CLL in a real-life population, including the elderly and unfit patients. BR and ibrutinib may be equally effective in terms of OS when used as first salvage treatment in patients without 17p deletion.

Article Number: 1209

Doi: 10.3324/haematol.2018.189837

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