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Key clinical point: Parsaclisib led to clinically meaningful improvements and a manageable safety profile in Bruton tyrosine kinase inhibitor (BTKi)-naive patients with relapsed or refractory mantle cell lymphoma (MCL).
Major finding: Among BTKi-naive patients who received parsaclisib once daily, 70.1% (95% CI 58.6%-80.0%) and 15.6% (95% CI 8.3%-25.6%) of patients achieved an objective response and a complete response, respectively, with the median duration of response being 12.1 (95% CI 9.0-not evaluable) months. Most treatment-emergent adverse events were low grade and manageable by dose interruptions or reductions.
Study details: This phase 2 CITADEL-205 study included adult patients with relapsed or refractory MCL previously treated with 1-3 systemic therapies, with (n = 53) or without (n = 108) prior BTKi treatment, who received 20 mg parsaclisib once daily for 8 weeks followed by either 20 mg parsaclisib once weekly or 2.5 mg parsaclisib once daily.
Disclosures: This study was funded by Incyte Corporation. Some authors declared serving as consultants, advisors, or board members for or receiving research funding, honoraria, or travel and accommodation expenses from Incyte and others. Four authors declared being employees of and owning stocks in Incyte.
Source: Zinzani PL et al. Parsaclisib, a PI3Kδ inhibitor, in relapsed and refractory mantle cell lymphoma (CITADEL-205): A phase 2 study. EClinicalMedicine. 2023;62:102131 (Aug 10). doi: 10.1016/j.eclinm.2023.102131
Key clinical point: Parsaclisib led to clinically meaningful improvements and a manageable safety profile in Bruton tyrosine kinase inhibitor (BTKi)-naive patients with relapsed or refractory mantle cell lymphoma (MCL).
Major finding: Among BTKi-naive patients who received parsaclisib once daily, 70.1% (95% CI 58.6%-80.0%) and 15.6% (95% CI 8.3%-25.6%) of patients achieved an objective response and a complete response, respectively, with the median duration of response being 12.1 (95% CI 9.0-not evaluable) months. Most treatment-emergent adverse events were low grade and manageable by dose interruptions or reductions.
Study details: This phase 2 CITADEL-205 study included adult patients with relapsed or refractory MCL previously treated with 1-3 systemic therapies, with (n = 53) or without (n = 108) prior BTKi treatment, who received 20 mg parsaclisib once daily for 8 weeks followed by either 20 mg parsaclisib once weekly or 2.5 mg parsaclisib once daily.
Disclosures: This study was funded by Incyte Corporation. Some authors declared serving as consultants, advisors, or board members for or receiving research funding, honoraria, or travel and accommodation expenses from Incyte and others. Four authors declared being employees of and owning stocks in Incyte.
Source: Zinzani PL et al. Parsaclisib, a PI3Kδ inhibitor, in relapsed and refractory mantle cell lymphoma (CITADEL-205): A phase 2 study. EClinicalMedicine. 2023;62:102131 (Aug 10). doi: 10.1016/j.eclinm.2023.102131
Key clinical point: Parsaclisib led to clinically meaningful improvements and a manageable safety profile in Bruton tyrosine kinase inhibitor (BTKi)-naive patients with relapsed or refractory mantle cell lymphoma (MCL).
Major finding: Among BTKi-naive patients who received parsaclisib once daily, 70.1% (95% CI 58.6%-80.0%) and 15.6% (95% CI 8.3%-25.6%) of patients achieved an objective response and a complete response, respectively, with the median duration of response being 12.1 (95% CI 9.0-not evaluable) months. Most treatment-emergent adverse events were low grade and manageable by dose interruptions or reductions.
Study details: This phase 2 CITADEL-205 study included adult patients with relapsed or refractory MCL previously treated with 1-3 systemic therapies, with (n = 53) or without (n = 108) prior BTKi treatment, who received 20 mg parsaclisib once daily for 8 weeks followed by either 20 mg parsaclisib once weekly or 2.5 mg parsaclisib once daily.
Disclosures: This study was funded by Incyte Corporation. Some authors declared serving as consultants, advisors, or board members for or receiving research funding, honoraria, or travel and accommodation expenses from Incyte and others. Four authors declared being employees of and owning stocks in Incyte.
Source: Zinzani PL et al. Parsaclisib, a PI3Kδ inhibitor, in relapsed and refractory mantle cell lymphoma (CITADEL-205): A phase 2 study. EClinicalMedicine. 2023;62:102131 (Aug 10). doi: 10.1016/j.eclinm.2023.102131