ArticleTranslational oncology2020
Ibrutinib is not an effective drug in primografts of TCF3-PBX1.
Article in Translational oncology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 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
2 citing papers in PubMed, 3 citations in OpenAlex.
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Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
aimThe Bruton's tyrosine kinase (BTK) inhibitor Ibrutinib (PCI-32765) is effective in patients with multiple myeloma, non-Hodgkin lymphoma and chronic lymphoblastic leukemia. We previously showed that primary cells of children with TCF3-PBX1 positive B-cell precursor acute lymphoblastic leukemia (BCP-ALL) express BTK and are sensitive to ibrutinib in vitro. However, preclinical studies in mice are lacking that justify clinical implementation.
methodsImmunocompromised NSG mice were engrafted with a luciferase-positive TCF3-PBX1 leukemic cell line or primary leukemic cells and treated with ibrutinib or placebo. Additionally, primary cells were exposed in vitro to 4 main induction drugs as monotherapy and in combination with ibrutinib.
resultsTreatment with ibrutinib of mice engrafted with a TCF3-PBX1 cell line, TCF3-PBX1 positive or TCF3-PBX1 negative primary leukemic cells did not result in prolonged life span compared to placebo treated mice. In vitro sensitivity to ibrutinib was unaltered in leukemic cells obtained from engrafted mice compared to the original material. However, ibrutinib treatment did not affect leukemic cell viability and tumor outgrowth, nor could lymphocytosis be detected. Ibrutinib was biologically active, since hCD19
conclusionsWe conclude that ibrutinib is not the precision medicine of choice for TCF3-PBX1 positive BCP-ALL.
Identifiers
What OpenQuestion holds
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 OpenQuestion graph.