Reference Detail

Ref Type

Journal Article

PMID

(26554404)

Authors

Infarinato NR, Park JH, Krytska K, Ryles HT, Sano R, Szigety KM, Li Y, Zou HY, Lee NV, Smeal T, Lemmon MA, Mossé YP

Title

The ALK/ROS1 Inhibitor PF-06463922 Overcomes Primary Resistance to Crizotinib in ALK-Driven Neuroblastoma.

Journal	Vol	Issue	Date	Pages	Journal Short Title
Cancer discovery	6	1	2016 Jan	96-107	Cancer Discov

URL

Abstract Text

Neuroblastomas harboring activating point mutations in anaplastic lymphoma kinase (ALK) are differentially sensitive to the ALK inhibitor crizotinib, with certain mutations conferring intrinsic crizotinib resistance. To overcome this clinical obstacle, our goal was to identify inhibitors with improved potency that can target intractable ALK variants such as F1174L. We find that PF-06463922 has high potency across ALK variants and inhibits ALK more effectively than crizotinib in vitro. Most importantly, PF-06463922 induces complete tumor regression in both crizotinib-resistant and crizotinib-sensitive xenograft mouse models of neuroblastoma, as well as in patient-derived xenografts harboring the crizotinib-resistant F1174L or F1245C mutations. These studies demonstrate that PF-06463922 has the potential to overcome crizotinib resistance and exerts unprecedented activity as a single targeted agent against F1174L and F1245C ALK-mutated xenograft tumors, while also inducing responses in an R1275Q xenograft model. Taken together, these results provide the rationale to move PF-06463922 into clinical trials for treatment of patients with ALK-mutated neuroblastoma.The next-generation ALK/ROS1 inhibitor PF-06463922 exerts unparalleled activity in ALK-driven neuroblastoma models with primary crizotinib resistance. Our biochemical and in vivo data provide the preclinical rationale for fast-tracking the development of this agent in children with relapsed/refractory ALK-mutant neuroblastoma.

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Showing 1 to 14 of 14 entries

Molecular Profile	Indication/Tumor Type	Response Type	Therapy Name	Approval Status	Evidence Type	Efficacy Evidence	References
ALK F1174L	neuroblastoma	predicted - sensitive	Lorlatinib	Preclinical - Pdx & cell culture	Actionable	In a preclinical study, Lorbrena (lorlatinib) inhibited growth of neuroblastoma cells over expressing ALK F1174L in culture, and induced rapid and sustained complete tumor regression in both patient-derived and cell line xenograft models harboring ALK F1174L (PMID: 26554404).	26554404
ALK F1174L	neuroblastoma	conflicting	Crizotinib	Preclinical - Pdx & cell culture	Actionable	In a preclinical study, Xalkori (crizotinib) did not inhibit growth of neuroblastoma cells over expressing ALK F1174L in culture, and only delayed tumor growth in patient-derived and cell line xenograft models harboring ALK F1174L (PMID: 26554404).	26554404
ALK F1245C	neuroblastoma	resistant	Crizotinib	Preclinical - Pdx & cell culture	Actionable	In a preclinical study, Xalkori (crizotinib) did not inhibit growth of neuroblastoma cells over expressing ALK F1245C in culture, and only delayed tumor growth in patient-derived xenograft models harboring ALK F1245C (PMID: 26554404).	26554404
ALK F1245C	neuroblastoma	sensitive	Lorlatinib	Preclinical - Pdx & cell culture	Actionable	In a preclinical study, Lorbrena (lorlatinib) inhibited growth of neuroblastoma cells over expressing ALK F1245C in culture, and induced rapid and sustained complete tumor regression in patient-derived xenograft models harboring ALK F1245C (PMID: 26554404).	26554404
ALK R1275Q	neuroblastoma	sensitive	Lorlatinib	Preclinical - Cell line xenograft	Actionable	In a preclinical study, Lorbrena (lorlatinib) inhibited Alk phosphorylation, resulted in growth inhibition of neuroblastoma cells over expressing ALK R1275Q in culture and induced rapid and sustained complete tumor regression in cell line xenograft models (PMID: 26554404).	26554404
ALK R1275Q	neuroblastoma	conflicting	Crizotinib	Preclinical - Cell line xenograft	Actionable	In a preclinical study, Xalkori (crizotinib) did not inhibit growth of neuroblastoma cells over expressing ALK R1275Q in culture, and only delayed tumor growth in cell line xenograft models (PMID: 26554404).	26554404
ALK amp	neuroblastoma	no benefit	Crizotinib	Preclinical - Cell culture	Actionable	In a preclinical study, Xalkori (crizotinib) was less efficient than Lorlatinib (PF-06463922) to induced growth inhibition in ALK-amplified neuroblastoma cells in culture (PMID: 26554404).	26554404
ALK amp	neuroblastoma	sensitive	Lorlatinib	Preclinical - Cell culture	Actionable	In a preclinical study, Lorbrena (lorlatinib) inhibited growth of ALK-amplified neuroblastoma cells in culture (PMID: 26554404).	26554404
ALK F1174L	Advanced Solid Tumor	sensitive	Lorlatinib	Preclinical - Cell culture	Actionable	In a preclinical study, Lorbrena (lorlatinib) inhibited foci formation more efficiently than Xalkori (crizotinib) in transformed cells overexpressing ALK F1174L in culture (PMID: 26554404).	26554404
ALK F1245C	Advanced Solid Tumor	sensitive	Lorlatinib	Preclinical - Cell culture	Actionable	In a preclinical study, Lorbrena (lorlatinib) inhibited foci formation more efficiently than Xalkori (crizotinib) in transformed cells overexpressing ALK F1245C in culture (PMID: 26554404).	26554404
ALK R1275Q	Advanced Solid Tumor	sensitive	Lorlatinib	Preclinical - Cell culture	Actionable	In a preclinical study, Lorbrena (lorlatinib) inhibited foci formation more efficiently than Xalkori (crizotinib) in transformed cells overexpressing ALK R1275Q in culture (PMID: 26554404).	26554404
ALK wild-type	neuroblastoma	resistant	Lorlatinib	Preclinical - Cell culture	Actionable	In a preclinical study, Lorbrena (lorlatinib) did not inhibit growth of ALK wild-type neuroblastoma cells in culture (PMID: 26554404).	26554404
EML4 - ALK	neuroblastoma	resistant	Crizotinib	Preclinical - Cell culture	Actionable	In a preclinical study, Xalkori (crizotinib) did not inhibit growth of neuroblastoma cells over expressing EML4-ALK in culture (PMID: 26554404).	26554404
EML4 - ALK	neuroblastoma	sensitive	Lorlatinib	Preclinical - Cell culture	Actionable	In a preclinical study, Lorbrena (lorlatinib) inhibited growth of neuroblastoma cells harboring EML4-ALK in culture (PMID: 26554404).	26554404

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