Alectinib versus crizotinib in treatment-naive anaplastic lymphoma kinase-positive (ALK+) non-small-cell lung cancer: CNS efficacy results from the ALEX study

The phase III ALEX study in patients with treatment-naive advanced anaplastic lymphoma kinase mutation-positive (ALK+) non-small-cell lung cancer (NSCLC) met its primary end point of improved progression-free survival (PFS) with alectinib versus crizotinib. Here, we present detailed central nervous...

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Veröffentlicht in:Annals of oncology 2018-11, Vol.29 (11), p.2214-2222
Hauptverfasser: Gadgeel, S., Peters, S., Mok, T., Shaw, A.T., Kim, D.W., Ou, S.I., Pérol, M., Wrona, A., Novello, S., Rosell, R., Zeaiter, A., Liu, T., Nüesch, E., Balas, B., Camidge, D.R.
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container_end_page 2222
container_issue 11
container_start_page 2214
container_title Annals of oncology
container_volume 29
creator Gadgeel, S.
Peters, S.
Mok, T.
Shaw, A.T.
Kim, D.W.
Ou, S.I.
Pérol, M.
Wrona, A.
Novello, S.
Rosell, R.
Zeaiter, A.
Liu, T.
Nüesch, E.
Balas, B.
Camidge, D.R.
description The phase III ALEX study in patients with treatment-naive advanced anaplastic lymphoma kinase mutation-positive (ALK+) non-small-cell lung cancer (NSCLC) met its primary end point of improved progression-free survival (PFS) with alectinib versus crizotinib. Here, we present detailed central nervous system (CNS) efficacy data from ALEX. Overall, 303 patients aged ≥18 years underwent 1:1 randomization to receive twice-daily doses of alectinib 600 mg or crizotinib 250 mg. Brain imaging was conducted in all patients at baseline and every subsequent 8 weeks. End points (analyzed by subgroup: patients with/without baseline CNS metastases; patients with/without prior radiotherapy) included PFS, CNS objective response rate (ORR), and time to CNS progression. In total, 122 patients had Independent Review Committee-assessed baseline CNS metastases (alectinib,n = 64; crizotinib,n = 58), 43 had measurable lesions (alectinib,n = 21; crizotinib,n = 22), and 46 had received prior radiotherapy (alectinib,n = 25; crizotinib,n = 21). Investigator-assessed PFS with alectinib was consistent between patients with baseline CNS metastases [hazard ratio (HR) 0.40, 95% confidence interval (CI): 0.25–0.64] and those without (HR 0.51, 95% CI: 0.33–0.80,P interaction = 0.36). Similar results were seen in patients regardless of prior radiotherapy. Time to CNS progression was significantly longer with alectinib versus crizotinib and comparable between patients with and without baseline CNS metastases (P < 0.0001). CNS ORR was 85.7% with alectinib versus 71.4% with crizotinib in patients who received prior radiotherapy and 78.6% versus 40.0%, respectively, in those who had not. Alectinib demonstrated superior CNS activity and significantly delayed CNS progression versus crizotinib in patients with previously untreated, advancedALK+ NSCLC, irrespective of prior CNS disease or radiotherapy. ClinicalTrials.gov NCT02075840
doi_str_mv 10.1093/annonc/mdy405
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Here, we present detailed central nervous system (CNS) efficacy data from ALEX. Overall, 303 patients aged ≥18 years underwent 1:1 randomization to receive twice-daily doses of alectinib 600 mg or crizotinib 250 mg. Brain imaging was conducted in all patients at baseline and every subsequent 8 weeks. End points (analyzed by subgroup: patients with/without baseline CNS metastases; patients with/without prior radiotherapy) included PFS, CNS objective response rate (ORR), and time to CNS progression. In total, 122 patients had Independent Review Committee-assessed baseline CNS metastases (alectinib,n = 64; crizotinib,n = 58), 43 had measurable lesions (alectinib,n = 21; crizotinib,n = 22), and 46 had received prior radiotherapy (alectinib,n = 25; crizotinib,n = 21). Investigator-assessed PFS with alectinib was consistent between patients with baseline CNS metastases [hazard ratio (HR) 0.40, 95% confidence interval (CI): 0.25–0.64] and those without (HR 0.51, 95% CI: 0.33–0.80,P interaction = 0.36). Similar results were seen in patients regardless of prior radiotherapy. Time to CNS progression was significantly longer with alectinib versus crizotinib and comparable between patients with and without baseline CNS metastases (P &lt; 0.0001). CNS ORR was 85.7% with alectinib versus 71.4% with crizotinib in patients who received prior radiotherapy and 78.6% versus 40.0%, respectively, in those who had not. Alectinib demonstrated superior CNS activity and significantly delayed CNS progression versus crizotinib in patients with previously untreated, advancedALK+ NSCLC, irrespective of prior CNS disease or radiotherapy. 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Investigator-assessed PFS with alectinib was consistent between patients with baseline CNS metastases [hazard ratio (HR) 0.40, 95% confidence interval (CI): 0.25–0.64] and those without (HR 0.51, 95% CI: 0.33–0.80,P interaction = 0.36). Similar results were seen in patients regardless of prior radiotherapy. Time to CNS progression was significantly longer with alectinib versus crizotinib and comparable between patients with and without baseline CNS metastases (P &lt; 0.0001). CNS ORR was 85.7% with alectinib versus 71.4% with crizotinib in patients who received prior radiotherapy and 78.6% versus 40.0%, respectively, in those who had not. Alectinib demonstrated superior CNS activity and significantly delayed CNS progression versus crizotinib in patients with previously untreated, advancedALK+ NSCLC, irrespective of prior CNS disease or radiotherapy. 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Peters, S. ; Mok, T. ; Shaw, A.T. ; Kim, D.W. ; Ou, S.I. ; Pérol, M. ; Wrona, A. ; Novello, S. ; Rosell, R. ; Zeaiter, A. ; Liu, T. ; Nüesch, E. ; Balas, B. ; Camidge, D.R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c534t-30737372661b52db7c44a6df18782ed0f9181e3c67fc0cfac683b1ee12f72f493</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Adult</topic><topic>Aged</topic><topic>Aged, 80 and over</topic><topic>alectinib</topic><topic>ALK-positive</topic><topic>Anaplastic Lymphoma Kinase - antagonists &amp; inhibitors</topic><topic>Anaplastic Lymphoma Kinase - genetics</topic><topic>Brain - diagnostic imaging</topic><topic>Brain - drug effects</topic><topic>Brain - radiation effects</topic><topic>Brain Neoplasms - diagnostic imaging</topic><topic>Brain Neoplasms - genetics</topic><topic>Brain Neoplasms - secondary</topic><topic>Brain Neoplasms - therapy</topic><topic>Carbazoles - pharmacology</topic><topic>Carbazoles - therapeutic use</topic><topic>Carcinoma, Non-Small-Cell Lung - diagnostic imaging</topic><topic>Carcinoma, Non-Small-Cell Lung - genetics</topic><topic>Carcinoma, Non-Small-Cell Lung - secondary</topic><topic>Carcinoma, Non-Small-Cell Lung - therapy</topic><topic>Chemoradiotherapy - methods</topic><topic>CNS</topic><topic>Crizotinib - pharmacology</topic><topic>Crizotinib - therapeutic use</topic><topic>Disease Progression</topic><topic>Female</topic><topic>Humans</topic><topic>Lung - diagnostic imaging</topic><topic>Lung - drug effects</topic><topic>Lung - radiation effects</topic><topic>Lung Neoplasms - diagnostic imaging</topic><topic>Lung Neoplasms - genetics</topic><topic>Lung Neoplasms - pathology</topic><topic>Lung Neoplasms - therapy</topic><topic>Magnetic Resonance Imaging</topic><topic>Male</topic><topic>Middle Aged</topic><topic>NSCLC</topic><topic>Original articles</topic><topic>Piperidines - pharmacology</topic><topic>Piperidines - therapeutic use</topic><topic>Treatment Outcome</topic><topic>Tumor Burden - drug effects</topic><topic>Tumor Burden - radiation effects</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gadgeel, S.</creatorcontrib><creatorcontrib>Peters, S.</creatorcontrib><creatorcontrib>Mok, T.</creatorcontrib><creatorcontrib>Shaw, A.T.</creatorcontrib><creatorcontrib>Kim, D.W.</creatorcontrib><creatorcontrib>Ou, S.I.</creatorcontrib><creatorcontrib>Pérol, M.</creatorcontrib><creatorcontrib>Wrona, A.</creatorcontrib><creatorcontrib>Novello, S.</creatorcontrib><creatorcontrib>Rosell, R.</creatorcontrib><creatorcontrib>Zeaiter, A.</creatorcontrib><creatorcontrib>Liu, T.</creatorcontrib><creatorcontrib>Nüesch, E.</creatorcontrib><creatorcontrib>Balas, B.</creatorcontrib><creatorcontrib>Camidge, D.R.</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>Oxford Journals Open Access Collection</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Annals of oncology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gadgeel, S.</au><au>Peters, S.</au><au>Mok, T.</au><au>Shaw, A.T.</au><au>Kim, D.W.</au><au>Ou, S.I.</au><au>Pérol, M.</au><au>Wrona, A.</au><au>Novello, S.</au><au>Rosell, R.</au><au>Zeaiter, A.</au><au>Liu, T.</au><au>Nüesch, E.</au><au>Balas, B.</au><au>Camidge, D.R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Alectinib versus crizotinib in treatment-naive anaplastic lymphoma kinase-positive (ALK+) non-small-cell lung cancer: CNS efficacy results from the ALEX study</atitle><jtitle>Annals of oncology</jtitle><addtitle>Ann Oncol</addtitle><date>2018-11-01</date><risdate>2018</risdate><volume>29</volume><issue>11</issue><spage>2214</spage><epage>2222</epage><pages>2214-2222</pages><issn>0923-7534</issn><eissn>1569-8041</eissn><abstract>The phase III ALEX study in patients with treatment-naive advanced anaplastic lymphoma kinase mutation-positive (ALK+) non-small-cell lung cancer (NSCLC) met its primary end point of improved progression-free survival (PFS) with alectinib versus crizotinib. Here, we present detailed central nervous system (CNS) efficacy data from ALEX. Overall, 303 patients aged ≥18 years underwent 1:1 randomization to receive twice-daily doses of alectinib 600 mg or crizotinib 250 mg. Brain imaging was conducted in all patients at baseline and every subsequent 8 weeks. End points (analyzed by subgroup: patients with/without baseline CNS metastases; patients with/without prior radiotherapy) included PFS, CNS objective response rate (ORR), and time to CNS progression. In total, 122 patients had Independent Review Committee-assessed baseline CNS metastases (alectinib,n = 64; crizotinib,n = 58), 43 had measurable lesions (alectinib,n = 21; crizotinib,n = 22), and 46 had received prior radiotherapy (alectinib,n = 25; crizotinib,n = 21). Investigator-assessed PFS with alectinib was consistent between patients with baseline CNS metastases [hazard ratio (HR) 0.40, 95% confidence interval (CI): 0.25–0.64] and those without (HR 0.51, 95% CI: 0.33–0.80,P interaction = 0.36). Similar results were seen in patients regardless of prior radiotherapy. Time to CNS progression was significantly longer with alectinib versus crizotinib and comparable between patients with and without baseline CNS metastases (P &lt; 0.0001). CNS ORR was 85.7% with alectinib versus 71.4% with crizotinib in patients who received prior radiotherapy and 78.6% versus 40.0%, respectively, in those who had not. Alectinib demonstrated superior CNS activity and significantly delayed CNS progression versus crizotinib in patients with previously untreated, advancedALK+ NSCLC, irrespective of prior CNS disease or radiotherapy. ClinicalTrials.gov NCT02075840</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>30215676</pmid><doi>10.1093/annonc/mdy405</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-0412-7143</orcidid><oa>free_for_read</oa></addata></record>
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subjects Adult
Aged
Aged, 80 and over
alectinib
ALK-positive
Anaplastic Lymphoma Kinase - antagonists & inhibitors
Anaplastic Lymphoma Kinase - genetics
Brain - diagnostic imaging
Brain - drug effects
Brain - radiation effects
Brain Neoplasms - diagnostic imaging
Brain Neoplasms - genetics
Brain Neoplasms - secondary
Brain Neoplasms - therapy
Carbazoles - pharmacology
Carbazoles - therapeutic use
Carcinoma, Non-Small-Cell Lung - diagnostic imaging
Carcinoma, Non-Small-Cell Lung - genetics
Carcinoma, Non-Small-Cell Lung - secondary
Carcinoma, Non-Small-Cell Lung - therapy
Chemoradiotherapy - methods
CNS
Crizotinib - pharmacology
Crizotinib - therapeutic use
Disease Progression
Female
Humans
Lung - diagnostic imaging
Lung - drug effects
Lung - radiation effects
Lung Neoplasms - diagnostic imaging
Lung Neoplasms - genetics
Lung Neoplasms - pathology
Lung Neoplasms - therapy
Magnetic Resonance Imaging
Male
Middle Aged
NSCLC
Original articles
Piperidines - pharmacology
Piperidines - therapeutic use
Treatment Outcome
Tumor Burden - drug effects
Tumor Burden - radiation effects
Young Adult
title Alectinib versus crizotinib in treatment-naive anaplastic lymphoma kinase-positive (ALK+) non-small-cell lung cancer: CNS efficacy results from the ALEX study
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