Trial reportHaematologica2025
Pirtobrutinib monotherapy in Bruton tyrosine kinase inhibitor-intolerant patients with B-cell malignancies: results of the phase I/II BRUIN trial.
Trial report in Haematologica, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.
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
17 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Cardiovascular Challenges in Chronic Lymphocytic Leukemia (CLL) Patients Undergoing Bruton Tyrosine Kinase (BTK) Inhibitor Therapy.European journal of haematology · 2026Pooled it
- Safety and Management of Targeted Therapies for Relapsed/Refractory Chronic Lymphocytic Leukemia.Drug safety · 2026Review
- Cardiovascular Toxicity of BTK Inhibitors: A Patient-Centered Framework for Risk Stratification and Management.Journal of clinical medicine · 2026Review
- First-Line Bruton's Tyrosine Kinase Inhibitor-Based Regimens for Mantle Cell Lymphoma.Current oncology (Toronto, Ont.) · 2026Review
- Precision Medicine in Non-Hodgkin Lymphoma: Advances in BTK Inhibition, CD30-Directed Antibody-Drug Conjugates, and HDAC-Mediated Epigenetic Therapy with Pirtobrutinib, Brentuximab Vedotin, and Belinostat.Journal of clinical medicine · 2026Review
- [Chinese expert consensus on the diagnosis and treatment of elderly patients with mantle cell lymphoma (2026)].Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi · 2026Article
- Long-term complete remission following treatment with polatuzumab vedotin, rituximab, and bendamustine in a patient with mantle cell lymphoma relapsing after CAR-T cell therapy: a case report.Therapeutic advances in medical oncology · 2026Article
- Longitudinal changes in left atrial function during chronic ibrutinib therapy: a prospective observational study.Frontiers in cardiovascular medicine · 2026Article
- Bruton Tyrosine Kinase Inhibitors in Mantle Cell Lymphoma: What Are the Current Options?European journal of haematology · 2025Review
- Pirtobrutinib in the treatment of chronic lymphocytic leukemia or small lymphocytic lymphoma.Future oncology (London, England) · 2025Review
- Pharmacological profiling in CLL patients during pirtobrutinib therapy and disease progression.Blood cancer journal · 2025Article
- Pirtobrutinib in Chronic Lymphocytic Leukemia: Navigating Resistance and the Personalisation of BTK-Targeted Therapy.Cancers · 2025Review
- BTK inhibitors and next-generation BTK-targeted therapeutics for B-cell malignancies.Archives of pharmacal research · 2025Review
- Double Strike in Chronic Lymphocytic Leukemia-The Combination of BTK and BCL2 Inhibitors in Actual and Future Clinical Practice.International journal of molecular sciences · 2025Review
- Investigation of the mechanism of hypertension caused by BTKi in the treatment of hematologic diseases.Frontiers in pharmacology · 2025Review
- Advancements in research on the cardiovascular toxicity caused by TEC family kinases inhibitors.Frontiers in pharmacology · 2025Review
- Pirtobrutinib: the 'brute' with a softer side.Haematologica · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
35 authors.
Funding
Abstract
Bruton tyrosine kinase inhibitors (BTKi) have transformed the treatment of B-cell malignancies, but intolerance has often led to their discontinuation. The phase I/II BRUIN study evaluated pirtobrutinib, a highly selective non-covalent (reversible) BTKi, in patients with relapsed / refractory B-cell malignancies (clinicaltrials.gov 03740529). Pirtobrutinib was investigated in 127 patients with intolerance to at least one prior BTKi therapy in the absence of progressive disease. The most common adverse event (AE) leading to BTKi discontinuation was cardiac disorders (N=40, 31.5%), specifically atrial fibrillation (N=30, 23.6%). The median follow-up was 17.4 months and the median time on pirtobrutinib was 15.3 months. The most common reasons for pirtobrutinib discontinuation were progressive disease (26.8%), AE (10.2%) or death (5.5%). The most frequent treatment-emergent AE were fatigue (39.4%) and neutropenia (37.0%). Among patients who discontinued a prior BTKi for a cardiac issue, 75% had no recurrence of their cardiac AE. No patient discontinued pirtobrutinib for the same AE that led to discontinuation of the prior BTKi. In 78 chronic lymphocytic / small lymphocytic lymphoma (CLL/SLL) and 21 mantle cell lymphoma (MCL) patients intolerant to prior BTKi, overall response rate to pirtobrutinib was 76.9% and 81.0%, respectively. Median progression-free survival for CLL/SLL was 28.4 months but was not estimable for MCL. These results suggest that pirtobrutinib was safe, well-tolerated, and an efficacious option in patients with prior BTKi-intolerance.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.