Trial reportInternational journal of cancer2025
Pirtobrutinib in Chinese patients with relapsed or refractory B-cell malignancies: A single-arm, open-label, phase 2, multicenter trial.
Trial report in International journal of cancer, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
4 citing papers in PubMed.
- A comprehensive analysis of pirtobrutinib in Chinese patients with chronic lymphocytic leukaemia/small lymphocytic lymphoma (CLL/SLL): Results from the phase 3 study BRUIN CLL-321.British journal of haematology · 2026Trial
- Pirtobrutinib in Chinese patients with relapsed or refractory B-cell malignancies: A single-arm, open-label, phase 2, multicenter trial.International journal of cancer · 2025Trial
- Generational safety profiles of BTK inhibitors: adverse reaction signals and real-world evidence from the FAERS database.Frontiers in medicine · 2026Article
- Bruton Tyrosine Kinase Inhibitors in Mantle Cell Lymphoma: What Are the Current Options?European journal of haematology · 2025Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
14 authors.
Funding
Abstract
Pirtobrutinib, a highly selective, noncovalent (reversible) Bruton tyrosine kinase inhibitor (BTKi), demonstrated clinically meaningful antitumor responses in covalent BTKi pretreated mantle cell lymphoma (MCL) and chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL) in the global phase 1/2 BRUIN study. In this multi-center, open-label, phase 2 trial, we investigated the efficacy and safety of pirtobrutinib in Chinese patients with BTKi pretreated relapsed/refractory (R/R) MCL, CLL/SLL, or other B-cell malignancies. All patients received pirtobrutinib once daily in continuous 28-day cycles. The primary endpoint was the overall response rate (ORR). Efficacy was assessed in patients with MCL and CLL/SLL with prior BTKi treatment and safety in all enrolled patients who received at least one dose of pirtobrutinib. Among 35 patients with covalent BTKis (cBTKi) pretreated MCL, the ORR was 62.9% (95% CI: 44.9, 78.5), the median duration of response (DOR) was not reached, and the 12-month DOR rate was 59.7% (95% CI: 35.3, 77.5). Among 11 patients with cBTKi pretreated CLL/SLL, the ORR was 63.6% (95% CI: 30.8, 89.1), and the 12-month DOR rate was 83.3% (95% CI: 27.3, 97.5). The most common adverse events in the safety population (n = 87) were anemia (32.2%) and neutrophil count decreased (31.0%). Grade ≥3 hemorrhage occurred in 2.3% of patients and there were no cases of atrial fibrillation/flutter. Pirtobrutinib demonstrated clinically meaningful efficacy in Chinese patients with cBTKi pretreated R/R MCL, preliminary antitumor activity in Chinese patients with cBTKi pretreated R/R CLL/SLL and was generally well-tolerated with no new safety signals observed.
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