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PubMed2026

Feasibility and Efficacy of Lorlatinib in Japanese Patients With Relapsed/Refractory ALK-Aberrant Neuroblastoma.

Lorlatinib, a third-generation ALK inhibitor, was administered off-label to five heavily pretreated patients with relapsed or refractory ALK-aberrant neuroblastoma. ALK alterations included F1174L, R1275Q, BEND5::ALK fusion, and ALK amplification; three patients had MYCN amplification. Best responses were three partial responses and two disease progressions. The longest progression-free survival (6.7 months) occurred in a patient with F1174L and non-amplified MYCN, whereas rapid progression was observed in two MYCN-amplified cases. Lorlatinib was generally well tolerated with manageable adverse events. These findings suggest that lorlatinib is a feasible therapeutic option in ALK-aberrant neuroblastoma and that clinical heterogeneity in treatment response warrants further investigation.

Humans↗

PubMed2025

Novel strategies for rare oncogenic drivers in non-small-cell lung cancer: An update from the 2024 Annual ESMO meeting.

Across the landscape of oncogene-addicted non-small-cell lung cancer (NSCLC), various tyrosine kinase inhibitors (TKIs) have been introduced in the last twenty years. During the 2024 Annual ESMO meeting new therapeutic options were presented for EGFR exon 20 insertion mutation, ALK fusion and ROS1 fusion positive advanced stage NSCLC. For EGFR exon 20 insertion mutation positive NSCLC, results from REZILIENT-1, a single arm phase II study with zipalertinib, were presented, showing an objective response rate (ORR) of 50% in patients that were pretreated with amivantamab, and 25% in patients pretreated with amivantamab and an EGFR exon 20 insertion-directed TKI. The vast majority of these patients also received platinum-doublet chemotherapy. For ALK, results from ALKOVE-1, a single arm phase I/II study with NVL-655, a next generation ALK TKI, were presented. The ORR was 35 % in patients pretreated with ≥ 2 ALK TKIs including lorlatinib and 57 % in patients pretreated with ≥ 1 ALK TKI, excluding lorlatinib. The median number of prior anticancer therapies was 3. Intracranial responses were seen in lorlatinib naïve- and lorlatinib pretreated patients and toxicity was manageable. In addition, results of the first-line randomized phase III INSPIRE study were presented, in which iruplinalkib, an ALK and ROS1 selective TKI, is being evaluated versus crizotinib. Iruplinalkib showed a superior median PFS (36.8 versus 14.55 months for crizotinib), but no difference in 36-month overall survival (OS) rate. Finally, results from ARROS-1, a single arm phase I/II study with zidesamtinib, a ROS1 selective and TRK-sparing TKI, were presented. An ORR of 73% was obtained in patients that were pretreated with crizotinib and an ORR of 38% in patients pretreated with repotrectinib. In this review, we will discuss the relevant study results presented at ESMO 2024 for these three genomic drivers and hypothesize on their respective place in the sequence of treatment options.

Humans↗

PubMed2025

Integration of ALK gene mutations and targeted therapies in pediatric high-risk neuroblastoma: advancements in precision oncology.

INTRODUCTION: Neuroblastoma (NB) is the most common extracranial solid tumor in children. High-risk neuroblastoma remains a therapeutic challenge, with a 5-year survival rate of 60%. The anaplastic lymphoma kinase (ALK) oncogene plays a critical role in the pathogenesis of neuroblastoma, with mutations frequently observed in high-risk cases. In this review we explored the genomic landscape of high-risk neuroblastoma, focusing on ALK mutations and their role in disease progression. We have also discussed the efficacy of ALK-targeted therapies and potential combination strategies to overcome resistance. METHODS: A comprehensive literature search was conducted to collect peer-reviewed publications related to neuroblastoma's biology, classification, and treatment. Articles published between 1980 and 2025 were identified using databases such as PubMed, Scopus, Web of Science, and ClinicalTrials.gov. RESULTS: Neuroblastoma tumorigenesis implicates ALK mutations, particularly at ALK p.R1275Q, ALK p.F1174L, and ALK p.F1245C, with an enrichment in stage 4 tumors and younger patients. Several ALK inhibitors, like crizotinib, ceritinib, lorlatinib, repotrectinib, and alectinib, have shown different levels of success, but resistance to these treatments is still a big challenge. New treatment methods that combine farnesyltransferase inhibitors (FTIs) with ALK tyrosine kinase inhibitors (TKIs) are showing potential in improving how well the treatment works and in stopping the cancer from coming back. CONCLUSION: Precision oncology offers a novel and potentially more effective approach for treating high-risk neuroblastoma. While ALK inhibitors have shown promise, resistance mechanisms necessitate the development of combination therapies and next-generation inhibitors. Future research should focus on optimizing targeted treatment strategies to improve survival outcomes in pediatric patients with ALK-positive neuroblastoma.

ALK inhibitors↗