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Key clinical point: Idelalisib demonstrated long-term efficacy in heavily pretreated patients with relapsed or refractory chronic lymphocytic leukemia (CLL), and despite having a relatively higher toxicity profile than other targeted therapeutics, can be used in such patients in the absence of alternative therapies.
Major finding: The overall response rate was 65%, with 1 patient achieving complete remission. At a median follow-up of 33.6 months, the median progression-free survival was 16.4 months (95% CI 10.4-26.3), whereas the median overall survival was not reached. Grade ≥ 3 adverse events occurred in 10 patients. The most common serious adverse event was grade ≥ 3 infection (65%).
Study details: This real-world observational retrospective study included 37 patients with CLL (for up to 2.5 years after idelalisib approval in 2014) who had relapsed after or were refractory to ≥ 1 prior lines of therapy and received idelalisib with or without concomitant rituximab.
Disclosures: This study was supported by grants from AFA Insurance (Australia), the Swedish Cancer Society, and others. Three authors declared receiving research grants or honoraria from various sources. The other authors did not have any conflicts of interest to disclose.
Source: Mattsson A et al. Idelalisib (PI3Kδ inhibitor) therapy for patients with relapsed/refractory chronic lymphocytic leukemia: A Swedish nation-wide real-world report on consecutively identified patients. Eur J Haematol. 2023 (Jul 27). doi: 10.1111/ejh.14065
Key clinical point: Idelalisib demonstrated long-term efficacy in heavily pretreated patients with relapsed or refractory chronic lymphocytic leukemia (CLL), and despite having a relatively higher toxicity profile than other targeted therapeutics, can be used in such patients in the absence of alternative therapies.
Major finding: The overall response rate was 65%, with 1 patient achieving complete remission. At a median follow-up of 33.6 months, the median progression-free survival was 16.4 months (95% CI 10.4-26.3), whereas the median overall survival was not reached. Grade ≥ 3 adverse events occurred in 10 patients. The most common serious adverse event was grade ≥ 3 infection (65%).
Study details: This real-world observational retrospective study included 37 patients with CLL (for up to 2.5 years after idelalisib approval in 2014) who had relapsed after or were refractory to ≥ 1 prior lines of therapy and received idelalisib with or without concomitant rituximab.
Disclosures: This study was supported by grants from AFA Insurance (Australia), the Swedish Cancer Society, and others. Three authors declared receiving research grants or honoraria from various sources. The other authors did not have any conflicts of interest to disclose.
Source: Mattsson A et al. Idelalisib (PI3Kδ inhibitor) therapy for patients with relapsed/refractory chronic lymphocytic leukemia: A Swedish nation-wide real-world report on consecutively identified patients. Eur J Haematol. 2023 (Jul 27). doi: 10.1111/ejh.14065
Key clinical point: Idelalisib demonstrated long-term efficacy in heavily pretreated patients with relapsed or refractory chronic lymphocytic leukemia (CLL), and despite having a relatively higher toxicity profile than other targeted therapeutics, can be used in such patients in the absence of alternative therapies.
Major finding: The overall response rate was 65%, with 1 patient achieving complete remission. At a median follow-up of 33.6 months, the median progression-free survival was 16.4 months (95% CI 10.4-26.3), whereas the median overall survival was not reached. Grade ≥ 3 adverse events occurred in 10 patients. The most common serious adverse event was grade ≥ 3 infection (65%).
Study details: This real-world observational retrospective study included 37 patients with CLL (for up to 2.5 years after idelalisib approval in 2014) who had relapsed after or were refractory to ≥ 1 prior lines of therapy and received idelalisib with or without concomitant rituximab.
Disclosures: This study was supported by grants from AFA Insurance (Australia), the Swedish Cancer Society, and others. Three authors declared receiving research grants or honoraria from various sources. The other authors did not have any conflicts of interest to disclose.
Source: Mattsson A et al. Idelalisib (PI3Kδ inhibitor) therapy for patients with relapsed/refractory chronic lymphocytic leukemia: A Swedish nation-wide real-world report on consecutively identified patients. Eur J Haematol. 2023 (Jul 27). doi: 10.1111/ejh.14065