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Ref Type Journal Article
PMID (37012551)
Authors Goldsmith KC, Park JR, Kayser K, Malvar J, Chi YY, Groshen SG, Villablanca JG, Krytska K, Lai LM, Acharya PT, Goodarzian F, Pawel B, Shimada H, Ghazarian S, States L, Marshall L, Chesler L, Granger M, Desai AV, Mody R, Morgenstern DA, Shusterman S, Macy ME, Pinto N, Schleiermacher G, Vo K, Thurm HC, Chen J, Liyanage M, Peltz G, Matthay KK, Berko ER, Maris JM, Marachelian A, Mossé YP
Title Lorlatinib with or without chemotherapy in ALK-driven refractory/relapsed neuroblastoma: phase 1 trial results.
URL
Abstract Text Neuroblastomas harbor ALK aberrations clinically resistant to crizotinib yet sensitive pre-clinically to the third-generation ALK inhibitor lorlatinib. We conducted a first-in-child study evaluating lorlatinib with and without chemotherapy in children and adults with relapsed or refractory ALK-driven neuroblastoma. The trial is ongoing, and we report here on three cohorts that have met pre-specified primary endpoints: lorlatinib as a single agent in children (12 months to <18 years); lorlatinib as a single agent in adults (≥18 years); and lorlatinib in combination with topotecan/cyclophosphamide in children (<18 years). Primary endpoints were safety, pharmacokinetics and recommended phase 2 dose (RP2D). Secondary endpoints were response rate and 123I-metaiodobenzylguanidine (MIBG) response. Lorlatinib was evaluated at 45-115 mg/m2/dose in children and 100-150 mg in adults. Common adverse events (AEs) were hypertriglyceridemia (90%), hypercholesterolemia (79%) and weight gain (87%). Neurobehavioral AEs occurred mainly in adults and resolved with dose hold/reduction. The RP2D of lorlatinib with and without chemotherapy in children was 115 mg/m2. The single-agent adult RP2D was 150 mg. The single-agent response rate (complete/partial/minor) for <18 years was 30%; for ≥18 years, 67%; and for chemotherapy combination in <18 years, 63%; and 13 of 27 (48%) responders achieved MIBG complete responses, supporting lorlatinib's rapid translation into active phase 3 trials for patients with newly diagnosed high-risk, ALK-driven neuroblastoma. ClinicalTrials.gov registration: NCT03107988 .

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Molecular Profile Treatment Approach
Gene Name Source Synonyms Protein Domains Gene Description Gene Role
Therapy Name Drugs Efficacy Evidence Clinical Trials
Drug Name Trade Name Synonyms Drug Classes Drug Description
Gene Variant Impact Protein Effect Variant Description Associated with drug Resistance
ALK F1245Y missense unknown ALK F1245Y lies within the protein kinase domain of the Alk protein (UniProt.org). F1245Y has been identified in the scientific literature (PMID: 37012551, PMID: 30523111), but has not been biochemically characterized and therefore, its effect on Alk protein function is unknown (PubMed, May 2023).
Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
ALK act mut neuroblastoma sensitive Cyclophosphamide + Lorlatinib + Topotecan Phase I Actionable In a Phase I trial, the combination of Lorbrena (lorlatinib), Topotecan, and Cytoxan (cyclophosphamide) treatment was well tolerated and resulted in a modified response rate of 63% (5/8) in pediatric patients with neuroblastoma harboring an ALK activating mutation, including ALK F1174C, F1174L, R1275Q, or R1275L (PMID: 37012551; NCT03107988). 37012551
ALK act mut neuroblastoma sensitive Lorlatinib Phase I Actionable In a Phase I trial, Lorbrena (lorlatinib) treatment was well tolerated and resulted in a modified response rate of 30% (7/23) in children and 67% (10/15) in adults with neuroblastoma harboring an ALK activating mutation, including ALK F1174C, F1174L, R1275Q, or R1275L, F1245Y, F1245L, D1276_R1279delinsE, or amplification (PMID: 37012551; NCT03107988). 37012551