A Case of Primary Intramedullary Infantile Fibrosarcoma With an RBPMS::NTRK3 Fusion and Response to Larotrectinib. [PDF]
We report a case of primary intramedullary infantile fibrosarcoma (IFS) in a 4‐week‐old infant with rapidly progressive cervical myelopathy. Histology showed a spindle cell tumour with diffuse S100 and pan‐TRK expression. RNA sequencing identified an RBPMS::NTRK3 fusion.
Le Quang M +8 more
europepmc +2 more sources
Larotrectinib in a NTRK-rearranged soft tissue sarcoma in the neoadjuvant setting: A case report
Patients with soft tissue sarcomas should be assessed for neurotrophic tropomyosin receptor kinase (NTRK) gene fusions as neoadjuvant treatment with larotrectinib may prevent amputation.
Thomas Schubert +2 more
exaly +2 more sources
Corticosteroids for Managing TRK Inhibitor Withdrawal Pain: A Report on Two Cases [PDF]
Background: Neurotrophin receptor tyrosine kinase (NTRK) fusions are potent oncogenic mutations. Inhibitors such as larotrectinib, entrectinib and repotrectinib are used when cancer cells harbor NTRK1, NTRK2 or NTRK3 fusion.
Nicolas Marcoux, Louis-Philippe Grenier
doaj +2 more sources
Understanding Postmarketing Requirements and Commitments for CYP3A-Mediated Drug-Drug Interactions: An Analysis of FDA-Approved Drugs From 2015 to 2024. [PDF]
ABSTRACT Addressing knowledge gaps at drug approval through drug–drug interaction (DDI)‐related postmarketing requirements (PMRs) and commitments (PMCs) is essential for safe and effective use. This analysis reviewed CYP3A‐related PMRs and PMCs, the most evaluated enzyme in postmarketing studies, to characterize their scope.
Yu J +4 more
europepmc +2 more sources
Understanding access to novel high-cost cancer therapies across Canada: a national survey of pediatric oncology providers [PDF]
IntroductionMany evidence-informed high-cost therapies for childhood cancer, including targeted drugs, proton beam therapy (PBT), and cellular therapy (CT) are not publicly funded in Canada. This study aimed to identify disparities and barriers to access,
Kriti Kumar +8 more
doaj +2 more sources
Sustained response to larotrectinib in a pediatric patient with recurrent STRN3::NTRK2 fusion-positive pilocytic astrocytoma [PDF]
A 7-year-old female with recurrent midline pilocytic astrocytoma harboring a rare STRN3::NTRK2 fusion achieved sustained near-complete radiographic and clinical response to larotrectinib, a selective TRK inhibitor.
Kishore Balasubramanian +3 more
doaj +2 more sources
Extraskeletal osteosarcoma harboring ETV6::NTRK3 fusion treated successfully with larotrectinib: a case study [PDF]
Background Extraskeletal osteosarcoma (ESOS) is a rare, aggressive mesenchymal tumor with limited therapeutic options and a poor prognosis due to frequent metastases. Identifying targetable genetic alterations could improve treatment outcomes.
Kristijan Skok +8 more
doaj +2 more sources
Not all NTRK fusions in mesenchymal neoplasia are driver events: implications on classification and targeted therapy. [PDF]
Abstract NTRK fusions drive the pathogenesis of a distinctive group of mesenchymal neoplasms with significant impact on classification and targeted therapy. However, unexpected NTRK fusions have been reported in other sarcoma entities, raising uncertainty over their specificity and clinical management.
Yakoub MA +4 more
europepmc +2 more sources
Case Report: Novel findings of larotrectinib in children with NTRK-rearranged spindle cell tumor [PDF]
Neurotrophic tropomyosin receptor kinase (NTRK)-rearranged spindle cell tumors are often resistant to chemotherapy and radiotherapy. Fortunately, they are sensitive to targeted therapy of tropomyosin receptor kinase (TRK) inhibitors. However, the data on
Linnan Wu +11 more
doaj +2 more sources
The NTRK genes encode the TRK proteins. NTRK fusions lead to constitutively active, ligand-independent downstream signaling. NTRK fusions are implicated in up to 1% of all solid tumors and 0.2% of NSCLC.
Mary C. Boulanger, MD +4 more
doaj +1 more source

