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Ref Type | Journal Article | ||||||||||||
PMID | (33568345) | ||||||||||||
Authors | Foster JH, Voss SD, Hall DC, Minard CG, Balis FM, Wilner K, Berg SL, Fox E, Adamson PC, Blaney SM, Weigel BJ, Mossé YP | ||||||||||||
Title | Activity of Crizotinib in Patients with ALK-Aberrant Relapsed/Refractory Neuroblastoma: A Children's Oncology Group Study (ADVL0912). | ||||||||||||
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Abstract Text | Anaplastic lymphoma kinase (ALK) aberrations are a promising target for patients with neuroblastoma. We assessed the activity of first-generation ALK inhibitor crizotinib in patients with no known curative treatments and whose tumors harbored an activating ALK alteration.Twenty patients with relapsed/refractory ALK-positive neuroblastoma received crizotinib at the recommended phase II dose of 280 mg/m2/dose. A Simon two-stage design was used to evaluate the antitumor activity of crizotinib monotherapy. Response evaluation occurred after cycles 1, 3, 5, 7, and then every 3 cycles. Correlation of ALK status and response was a secondary aim of the study.The objective response rate for patients with neuroblastoma was 15% [95% confidence interval (CI): 3.3%-34.3%]: two with partial responses and 1 with a complete response. All three patients had a somatic ALK Arg1275Gln mutation, the most common ALK hotspot mutation observed in neuroblastoma and the only mutation predicted to be sensitive to ALK inhibition with crizotinib. Two patients had prolonged stable disease (10 and 13 cycles, respectively); both harbored an ALK Arg1275Gln mutation. Three patients with ALK Phe1174Leu mutations progressed during cycle 1 of therapy, and one patient with an ALK Phe1174Val received three cycles before disease progression. The two patients with ALK amplification had no response. The most common adverse event was a decrease in neutrophil count.Despite limited activity seen in this trial, we conclude that this is more likely due to an inability to reach the higher concentrations of crizotinib needed to overcome the competing ATP affinity.See related commentary by Schulte and Eggert, p. 3507. |
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Gene | Variant | Impact | Protein Effect | Variant Description | Associated with drug Resistance |
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Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
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ALK amp | neuroblastoma | no benefit | Crizotinib | Case Reports/Case Series | Actionable | In a Phase I/II trial (ADVL0912), Xalkori (crizotinib) treatment resulted in an objective response of 15% (3/20) in pediatric patients with relapsed/refractory neuroblastoma harboring ALK activating mutations or amplifications, although both patients harboring ALK amplification had disease progression after only 1 cycle of treatment (PMID: 33568345; NCT00939770). | 33568345 |
ALK F1174V | neuroblastoma | predicted - sensitive | Crizotinib | Case Reports/Case Series | Actionable | In a Phase I/II trial (ADVL0912), Xalkori (crizotinib) treatment resulted in an objective response of 15% (3/20) in pediatric patients with relapsed/refractory neuroblastoma harboring ALK activating mutations or amplifications, a patient harboring ALK F1174V stayed on treatment for 3 cycles until disease progression (PMID: 33568345; NCT00939770). | 33568345 |
ALK F1174L ALK R1275Q | neuroblastoma | predicted - sensitive | Crizotinib | Case Reports/Case Series | Actionable | In a Phase I/II trial (ADVL0912), Xalkori (crizotinib) treatment resulted in an objective response of 15% (3/20) in pediatric patients with relapsed/refractory neuroblastoma harboring ALK activating mutations or amplifications, and a patient harboring both ALK F1174L and ALK R1275Q stayed on treatment for 3 cycles until disease progression (PMID: 33568345; NCT00939770). | 33568345 |
ALK R1275Q | neuroblastoma | conflicting | Crizotinib | Case Reports/Case Series | Actionable | In a Phase I/II trial (ADVL0912), Xalkori (crizotinib) treatment resulted in an objective response of 15% (3/20) in pediatric patients with relapsed/refractory neuroblastoma harboring ALK activating mutations or amplifications, among the 12 patients harboring ALK R1275Q, 1 achieved a complete response, 2 achieved partial responses, and 2 achieved prolonged stable diseases (PMID: 33568345; NCT00939770). | 33568345 |
ALK F1174L | neuroblastoma | conflicting | Crizotinib | Case Reports/Case Series | Actionable | In a Phase I/II trial (ADVL0912), Xalkori (crizotinib) treatment resulted in an objective response of 15% (3/20) in pediatric patients with relapsed/refractory neuroblastoma harboring ALK activating mutations or amplifications, although all 3 patients harboring ALK F1174L had disease progression after only 1 cycle of treatment (PMID: 33568345; NCT00939770). | 33568345 |