Accessibility StatementSkip Navigation In the Phase 3 BRUIN CLL-313 study, treatment with pirtobrutinib demonstrated a highly statistically significant and clinically meaningful improvement in progression-free survival versus bendamustine plus rituximab, indicating one of the most compelling effect sizes ever observed for a single agent BTK inhibitor in a front-line CLL study BRUIN CLL-313 is the third positive Phase 3 study from the pirtobrutinib development program in CLL Results from BRUIN CLL-313 and B ...

Pirtobrutinib met the primary endpoint of response rate non-inferiority, favoring pirtobrutinib with a nominal P-value for superiority < 0.05 Progression-free survival data was immature, but trending in favor of pirtobrutinib BRUIN CLL-314 is the first ever head-to-head trial versus ibrutinib in CLL to include treatment-naïve patients. This important subpopulation (n=225) had the longest follow-up and a particularly pronounced PFS effect size in favor of pirtobrutinib. The overall safety profile of pirtobru ...

Core Viewpoint - Eli Lilly's BTK inhibitor, Jaypirca, has received a positive opinion from the European Medicines Agency's CHMP for treating relapsed or refractory chronic lymphocytic leukemia (CLL) in previously treated patients, with the decision expected from the European Commission in a couple of months [1][2]. Group 1: Regulatory Approvals - Jaypirca is already conditionally approved in the EU for adult patients with relapsed or refractory mantle cell lymphoma (MCL) who have been previously treated with a BTK inhibitor [2]. - The approval for CLL is based on data from the phase III BRUIN CLL-321 study [1]. Group 2: Sales Performance - Jaypirca recorded $337.0 million in sales in 2024, contributing to Eli Lilly's top-line growth [5]. - The drug is also being studied for earlier lines of therapy to expand its use for CLL and MCL indications [5]. Group 3: Market Competition - Current BTK inhibitors for CLL include AbbVie/J&J's Imbruvica, AstraZeneca's Calquence, and BeiGene's Brukinsa, with Imbruvica experiencing declining sales due to rising competition [6]. - None of the existing BTK inhibitors are approved for relapsed or refractory CLL in the post-BTK inhibitor setting [6]. Group 4: Stock Performance - Eli Lilly's shares have increased by 16.2% over the past year, contrasting with a 0.9% decline in the industry [3].

Core Opinion - The European Medicines Agency's Committee for Medicinal Products for Human Use has issued a positive opinion for Jaypirca (pirtobrutinib) for treating adult patients with relapsed or refractory chronic lymphocytic leukemia (CLL) previously treated with a BTK inhibitor [1][2][5] Clinical Trial Results - The BRUIN CLL-321 trial is the first randomized Phase 3 study in CLL conducted exclusively in patients previously treated with a BTK inhibitor [1][3] - The primary endpoint of progression-free survival (PFS) was met, showing pirtobrutinib was superior to the standard care options, reducing the risk of disease progression or death by 46% (median PFS: 14.0 months vs. 8.7 months) [3][7] - The median time to next treatment or death (TTNT) was 24 months for pirtobrutinib compared to 11 months for the control arm, indicating a 63% improvement [3][7] Safety Profile - The overall safety profile of pirtobrutinib was consistent with previous studies, with common adverse reactions including neutropenia, fatigue, diarrhea, anemia, rash, and contusion [3][18] - Serious adverse reactions occurred in 56% of patients with CLL, with pneumonia (18%) and COVID-19 (9%) being the most common [24][26] Regulatory Status - Following the positive opinion, the application for Jaypirca is now referred to the European Commission for final action, with a decision expected in one to two months [2][5] - Jaypirca has also received conditional marketing authorization in the EU for treating adult patients with relapsed or refractory mantle cell lymphoma (MCL) previously treated with a BTK inhibitor [2][5] Market Context - There are currently no treatment options specifically studied in a randomized Phase 3 trial for patients with relapsed or refractory CLL in the post-BTK inhibitor setting, highlighting the unmet need in this area [2][5] - Jaypirca was approved in the U.S. in 2023 under the FDA's Accelerated Approval pathway for similar indications, indicating a growing market for targeted therapies in hematologic malignancies [5][6]