A pilot study to determine the timing and effect of bevacizumab on vascular normalization of metastatic brain tumors in breast cancer

To determine the appropriate time of concomitant chemotherapy administration after antiangiogenic treatment, we investigated the timing and effect of bevacizumab administration on vascular normalization of metastatic brain tumors in breast cancer patients. Eight patients who participated in a phase...

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Veröffentlicht in:BMC cancer 2016-07, Vol.16 (1), p.466-466, Article 466
Hauptverfasser: Chen, Bang-Bin, Lu, Yen-Shen, Lin, Ching-Hung, Chen, Wei-Wu, Wu, Pei-Fang, Hsu, Chao-Yu, Yu, Chih-Wei, Wei, Shwu-Yuan, Cheng, Ann-Lii, Shih, Tiffany Ting-Fang
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container_issue 1
container_start_page 466
container_title BMC cancer
container_volume 16
creator Chen, Bang-Bin
Lu, Yen-Shen
Lin, Ching-Hung
Chen, Wei-Wu
Wu, Pei-Fang
Hsu, Chao-Yu
Yu, Chih-Wei
Wei, Shwu-Yuan
Cheng, Ann-Lii
Shih, Tiffany Ting-Fang
description To determine the appropriate time of concomitant chemotherapy administration after antiangiogenic treatment, we investigated the timing and effect of bevacizumab administration on vascular normalization of metastatic brain tumors in breast cancer patients. Eight patients who participated in a phase II trial for breast cancer-induced refractory brain metastases were enrolled and subjected to 4 dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) examinations that evaluated Peak, Slope, iAUC 60 , and Ktrans before and after treatment. The treatment comprised bevacizumab on Day 1, etoposide on Days 2-4, and cisplatin on Day 2 in a 21-day cycle for a maximum of 6 cycles. DCE-MRI was performed before treatment and at 1 h, 24 h, and 21 days after bevacizumab administration. Values of the 4 DCE-MRI parameters reduced after bevacizumab administration. Compared with baseline values, the mean reductions at 1 and 24 h were -12.8 and -24.7 % for Peak, -46.6 and -65.8 % for Slope, -27.9 and -55.5 % for iAUC 60 , and -46.6 and -63.9 % for Ktrans, respectively (all P 
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Eight patients who participated in a phase II trial for breast cancer-induced refractory brain metastases were enrolled and subjected to 4 dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) examinations that evaluated Peak, Slope, iAUC 60 , and Ktrans before and after treatment. The treatment comprised bevacizumab on Day 1, etoposide on Days 2-4, and cisplatin on Day 2 in a 21-day cycle for a maximum of 6 cycles. DCE-MRI was performed before treatment and at 1 h, 24 h, and 21 days after bevacizumab administration. Values of the 4 DCE-MRI parameters reduced after bevacizumab administration. Compared with baseline values, the mean reductions at 1 and 24 h were -12.8 and -24.7 % for Peak, -46.6 and -65.8 % for Slope, -27.9 and -55.5 % for iAUC 60 , and -46.6 and -63.9 % for Ktrans, respectively (all P &lt; .05). The differences in the 1 and 24 h mean reductions were significant (all P &lt; .05) for all the parameters. The generalized estimating equation linear regression analyses of the 4 DCE-MRI parameters revealed that vascular normalization peaked 24 h after bevacizumab administration. Bevacizumab induced vascular normalization of brain metastases in humans at 1 and 24 h after administration, and the effect was significantly higher at 24 h than at 1 h. ClinicalTrials.gov, identifier NCT01281696 , registered prospectively on December 24, 2010.</description><identifier>ISSN: 1471-2407</identifier><identifier>EISSN: 1471-2407</identifier><identifier>DOI: 10.1186/s12885-016-2494-8</identifier><identifier>PMID: 27412562</identifier><language>eng</language><publisher>England: BioMed Central Ltd</publisher><subject>Adult ; Aged ; Analysis ; Angiogenesis Inhibitors - adverse effects ; Angiogenesis Inhibitors - therapeutic use ; Antineoplastic Combined Chemotherapy Protocols - administration &amp; dosage ; Antineoplastic Combined Chemotherapy Protocols - therapeutic use ; Bevacizumab - administration &amp; dosage ; Bevacizumab - therapeutic use ; Brain cancer ; Brain Neoplasms - blood supply ; Brain Neoplasms - diagnostic imaging ; Brain Neoplasms - drug therapy ; Brain Neoplasms - secondary ; Brain tumors ; Breast cancer ; Breast Neoplasms - drug therapy ; Breast Neoplasms - pathology ; Cancer therapies ; Care and treatment ; Chemotherapy ; Cisplatin - administration &amp; dosage ; Cisplatin - therapeutic use ; Clinical outcomes ; Contrast agents ; Contrast Media - administration &amp; dosage ; Drug Administration Schedule ; Drug Resistance, Neoplasm ; Etoposide - administration &amp; dosage ; Etoposide - therapeutic use ; Female ; Humans ; Hypotheses ; Magnetic resonance imaging ; Magnetic Resonance Imaging - methods ; Metastasis ; Middle Aged ; Neovascularization ; Patients ; Pilot Projects ; Prospective Studies ; Response rates ; Statistical analysis ; Time Factors ; Treatment Outcome ; Tumors</subject><ispartof>BMC cancer, 2016-07, Vol.16 (1), p.466-466, Article 466</ispartof><rights>COPYRIGHT 2016 BioMed Central Ltd.</rights><rights>Copyright BioMed Central 2016</rights><rights>The Author(s). 2016</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c559t-34020548368c3dc7672ca7930112073db215dc35228e2cf3f5b9196c3ff569de3</citedby><cites>FETCH-LOGICAL-c559t-34020548368c3dc7672ca7930112073db215dc35228e2cf3f5b9196c3ff569de3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4944505/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4944505/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,27924,27925,53791,53793</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/27412562$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Chen, Bang-Bin</creatorcontrib><creatorcontrib>Lu, Yen-Shen</creatorcontrib><creatorcontrib>Lin, Ching-Hung</creatorcontrib><creatorcontrib>Chen, Wei-Wu</creatorcontrib><creatorcontrib>Wu, Pei-Fang</creatorcontrib><creatorcontrib>Hsu, Chao-Yu</creatorcontrib><creatorcontrib>Yu, Chih-Wei</creatorcontrib><creatorcontrib>Wei, Shwu-Yuan</creatorcontrib><creatorcontrib>Cheng, Ann-Lii</creatorcontrib><creatorcontrib>Shih, Tiffany Ting-Fang</creatorcontrib><title>A pilot study to determine the timing and effect of bevacizumab on vascular normalization of metastatic brain tumors in breast cancer</title><title>BMC cancer</title><addtitle>BMC Cancer</addtitle><description>To determine the appropriate time of concomitant chemotherapy administration after antiangiogenic treatment, we investigated the timing and effect of bevacizumab administration on vascular normalization of metastatic brain tumors in breast cancer patients. Eight patients who participated in a phase II trial for breast cancer-induced refractory brain metastases were enrolled and subjected to 4 dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) examinations that evaluated Peak, Slope, iAUC 60 , and Ktrans before and after treatment. The treatment comprised bevacizumab on Day 1, etoposide on Days 2-4, and cisplatin on Day 2 in a 21-day cycle for a maximum of 6 cycles. DCE-MRI was performed before treatment and at 1 h, 24 h, and 21 days after bevacizumab administration. Values of the 4 DCE-MRI parameters reduced after bevacizumab administration. Compared with baseline values, the mean reductions at 1 and 24 h were -12.8 and -24.7 % for Peak, -46.6 and -65.8 % for Slope, -27.9 and -55.5 % for iAUC 60 , and -46.6 and -63.9 % for Ktrans, respectively (all P &lt; .05). The differences in the 1 and 24 h mean reductions were significant (all P &lt; .05) for all the parameters. The generalized estimating equation linear regression analyses of the 4 DCE-MRI parameters revealed that vascular normalization peaked 24 h after bevacizumab administration. Bevacizumab induced vascular normalization of brain metastases in humans at 1 and 24 h after administration, and the effect was significantly higher at 24 h than at 1 h. 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dosage</subject><subject>Cisplatin - therapeutic use</subject><subject>Clinical outcomes</subject><subject>Contrast agents</subject><subject>Contrast Media - administration &amp; dosage</subject><subject>Drug Administration Schedule</subject><subject>Drug Resistance, Neoplasm</subject><subject>Etoposide - administration &amp; dosage</subject><subject>Etoposide - therapeutic use</subject><subject>Female</subject><subject>Humans</subject><subject>Hypotheses</subject><subject>Magnetic resonance imaging</subject><subject>Magnetic Resonance Imaging - methods</subject><subject>Metastasis</subject><subject>Middle Aged</subject><subject>Neovascularization</subject><subject>Patients</subject><subject>Pilot Projects</subject><subject>Prospective Studies</subject><subject>Response rates</subject><subject>Statistical analysis</subject><subject>Time Factors</subject><subject>Treatment Outcome</subject><subject>Tumors</subject><issn>1471-2407</issn><issn>1471-2407</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNptkltrFDEUxwdRbK1-AF8kIIg-TM1lMsm8CEvxUigIXp5DJnOymzKTrElmsX33e5tha90VCSHn8jsn5ORfVc8JPidEtm8ToVLyGpO2pk3X1PJBdUoaQYqHxcMD-6R6ktI1xkRILB9XJ1Q0hPKWnla_VmjrxpBRyvNwg3JAA2SIk_OA8qZsV8w10n5AYC2YjIJFPey0cbfzpHsUPNrpZOZRR-RDnPTobnV2JVzACbJOubgG9VE7j_I8hZhQsfoIJYWM9gbi0-qR1WOCZ3fnWfX9w_tvF5_qq88fLy9WV7XhvMs1azDFvJGslYYNRrSCGi06hgmhWLChp4QPhnFKJVBjmeV9R7rWMGt52w3Azqp3-77buZ9gMOBz1KPaRjfpeKOCduo4491GrcNOlek2HPPS4PVdgxh-zJCymlwyMI7aQ5iTIhI3koumwQV9-Q96Heboy_MWSnS0xYT9pdZ6BOW8DeVeszRVq6aVUgrSLtT5f6iyBpicCR6sK_GjgjdHBYXJ8DOv9ZySuvz65Zh9dcBuQI95k8I4L5-YjkGyB00MKUWw94MjWC2CVHtBqiJItQhSyVLz4nDi9xV_FMh-A-uA2lk</recordid><startdate>20160713</startdate><enddate>20160713</enddate><creator>Chen, Bang-Bin</creator><creator>Lu, Yen-Shen</creator><creator>Lin, Ching-Hung</creator><creator>Chen, Wei-Wu</creator><creator>Wu, Pei-Fang</creator><creator>Hsu, Chao-Yu</creator><creator>Yu, Chih-Wei</creator><creator>Wei, Shwu-Yuan</creator><creator>Cheng, Ann-Lii</creator><creator>Shih, Tiffany Ting-Fang</creator><general>BioMed Central Ltd</general><general>BioMed Central</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>ISR</scope><scope>3V.</scope><scope>7TO</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>H94</scope><scope>K9.</scope><scope>M0S</scope><scope>M1P</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20160713</creationdate><title>A pilot study to determine the timing and effect of bevacizumab on vascular normalization of metastatic brain tumors in breast cancer</title><author>Chen, Bang-Bin ; Lu, Yen-Shen ; Lin, Ching-Hung ; Chen, Wei-Wu ; Wu, Pei-Fang ; Hsu, Chao-Yu ; Yu, Chih-Wei ; Wei, Shwu-Yuan ; Cheng, Ann-Lii ; Shih, Tiffany Ting-Fang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c559t-34020548368c3dc7672ca7930112073db215dc35228e2cf3f5b9196c3ff569de3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Adult</topic><topic>Aged</topic><topic>Analysis</topic><topic>Angiogenesis Inhibitors - adverse effects</topic><topic>Angiogenesis Inhibitors - therapeutic use</topic><topic>Antineoplastic Combined Chemotherapy Protocols - administration &amp; dosage</topic><topic>Antineoplastic Combined Chemotherapy Protocols - therapeutic use</topic><topic>Bevacizumab - administration &amp; dosage</topic><topic>Bevacizumab - therapeutic use</topic><topic>Brain cancer</topic><topic>Brain Neoplasms - blood supply</topic><topic>Brain Neoplasms - diagnostic imaging</topic><topic>Brain Neoplasms - drug therapy</topic><topic>Brain Neoplasms - secondary</topic><topic>Brain tumors</topic><topic>Breast cancer</topic><topic>Breast Neoplasms - drug therapy</topic><topic>Breast Neoplasms - pathology</topic><topic>Cancer therapies</topic><topic>Care and treatment</topic><topic>Chemotherapy</topic><topic>Cisplatin - administration &amp; 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Eight patients who participated in a phase II trial for breast cancer-induced refractory brain metastases were enrolled and subjected to 4 dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) examinations that evaluated Peak, Slope, iAUC 60 , and Ktrans before and after treatment. The treatment comprised bevacizumab on Day 1, etoposide on Days 2-4, and cisplatin on Day 2 in a 21-day cycle for a maximum of 6 cycles. DCE-MRI was performed before treatment and at 1 h, 24 h, and 21 days after bevacizumab administration. Values of the 4 DCE-MRI parameters reduced after bevacizumab administration. Compared with baseline values, the mean reductions at 1 and 24 h were -12.8 and -24.7 % for Peak, -46.6 and -65.8 % for Slope, -27.9 and -55.5 % for iAUC 60 , and -46.6 and -63.9 % for Ktrans, respectively (all P &lt; .05). The differences in the 1 and 24 h mean reductions were significant (all P &lt; .05) for all the parameters. The generalized estimating equation linear regression analyses of the 4 DCE-MRI parameters revealed that vascular normalization peaked 24 h after bevacizumab administration. Bevacizumab induced vascular normalization of brain metastases in humans at 1 and 24 h after administration, and the effect was significantly higher at 24 h than at 1 h. ClinicalTrials.gov, identifier NCT01281696 , registered prospectively on December 24, 2010.</abstract><cop>England</cop><pub>BioMed Central Ltd</pub><pmid>27412562</pmid><doi>10.1186/s12885-016-2494-8</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record>
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subjects Adult
Aged
Analysis
Angiogenesis Inhibitors - adverse effects
Angiogenesis Inhibitors - therapeutic use
Antineoplastic Combined Chemotherapy Protocols - administration & dosage
Antineoplastic Combined Chemotherapy Protocols - therapeutic use
Bevacizumab - administration & dosage
Bevacizumab - therapeutic use
Brain cancer
Brain Neoplasms - blood supply
Brain Neoplasms - diagnostic imaging
Brain Neoplasms - drug therapy
Brain Neoplasms - secondary
Brain tumors
Breast cancer
Breast Neoplasms - drug therapy
Breast Neoplasms - pathology
Cancer therapies
Care and treatment
Chemotherapy
Cisplatin - administration & dosage
Cisplatin - therapeutic use
Clinical outcomes
Contrast agents
Contrast Media - administration & dosage
Drug Administration Schedule
Drug Resistance, Neoplasm
Etoposide - administration & dosage
Etoposide - therapeutic use
Female
Humans
Hypotheses
Magnetic resonance imaging
Magnetic Resonance Imaging - methods
Metastasis
Middle Aged
Neovascularization
Patients
Pilot Projects
Prospective Studies
Response rates
Statistical analysis
Time Factors
Treatment Outcome
Tumors
title A pilot study to determine the timing and effect of bevacizumab on vascular normalization of metastatic brain tumors in breast cancer
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