Eur J Haematol. 2020;104:499-508. | 499 wileyonlinelibrary.com/journal/ejh 1 | INTRODUC TI ON Diffuse large B-cell lymphoma (DLBCL) is the most common form of non-Hodgkin lymphoma (NHL); between 30% and 58% of patients with NHL have DLBCL, which has a crude incidence in Europe of 3.81 cases per 100 000. 1,2 The incidence of both NHL and DLBCL varies considerably between European countries, with Italy and Spain having an incidence of NHL higher than the European average. 1-3 First-line therapy for intermediate-or high-risk B-cell NHL is an anthracycline-based regimen in combination with rituximab, such asAbstract Background and objective: Few treatment options exist for patients with relapsed/ refractory (R/R) B-cell non-Hodgkin lymphoma (NHL) who fail first-and second-line therapies. Pixantrone is a novel aza-anthracenedione agent with reduced potential for cardiotoxicity but maintained anti-tumour activity relative to anthracyclines. The current retrospective, observational, real-life study was undertaken in 79 patients who received pixantrone monotherapy for multiply R/R aggressive B-cell NHL in Spain and Italy.Results: Before pixantrone, patients had received a median of 3 prior therapies and 84.6% of them were refractory to the last regimen. Median progression-free survival (mPFS) was 2.8 months (95% confidence interval [CI] 2.1-3.6) and median overall survival (mOS) was 4.0 months (95%CI 5.6-7.9), with an objective response rate (ORR) of 29% (complete remission [CR]: 13.2%, partial remission [PR]: 15.2%). Patients receiving ≥2 cycles of pixantrone showed mPFS and mOS of 3.1 and 6.0 months, respectively, and an ORR of 36.8% (CR: 17.5%, PR: 19.3%). Overall, 63.3% of patients reported ≥1 adverse event (AE), most commonly haematological AEs. One patient developed grade 2 sinus tachycardia.
Conclusion:Pixantrone was effective and well tolerated in a real-world population of multiply R/R patients with aggressive B-cell NHL, many of whom had very poor prognostic factors.
K E Y W O R D Saggressive B-cell lymphoma, pixantrone, relapse, survival