Efficacy of Radium-223 in Bone-metastatic Castration-resistant Prostate Cancer with and Without Homologous Repair Gene Defects. (Record no. 3775)

MARC details
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fixed length control field 04346nam a22004337a 4500
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fixed length control field 190724s20192019 xxu||||| |||| 00| 0 eng d
022 ## - INTERNATIONAL STANDARD SERIAL NUMBER
International Standard Serial Number 0302-2838
024 ## - OTHER STANDARD IDENTIFIER
Standard number or code 10.1016/j.eururo.2018.09.040 [doi]
024 ## - OTHER STANDARD IDENTIFIER
Standard number or code NIHMS1508079 [mid]
024 ## - OTHER STANDARD IDENTIFIER
Standard number or code PMC6447475 [pmc]
024 ## - OTHER STANDARD IDENTIFIER
Standard number or code S0302-2838(18)30729-2 [pii]
040 ## - CATALOGING SOURCE
Original cataloging agency Ovid MEDLINE(R)
099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC)
PMID 30293905
245 ## - TITLE STATEMENT
Title Efficacy of Radium-223 in Bone-metastatic Castration-resistant Prostate Cancer with and Without Homologous Repair Gene Defects.
251 ## - Source
Source European Urology. 76(2):170-176, 2019 Aug.
252 ## - Abbreviated Source
Abbreviated source Eur Urol. 76(2):170-176, 2019 Aug.
253 ## - Journal Name
Journal name European urology
260 ## - PUBLICATION, DISTRIBUTION, ETC.
Year 2019
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Manufacturer FY2020
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Publication status ppublish
266 ## - Date added to catalog
Date added to catalog 2018-10-10
520 ## - SUMMARY, ETC.
Abstract BACKGROUND: Pathogenic mutations in genes mediating homologous recombination (HR) DNA repair are present in 20-30% of men with metastatic castrate-resistant prostate cancer (mCRPC). Radium-223 is a bone-seeking alpha-emitter that induces double-strand DNA breaks, thereby killing cancer cells in the bone microenvironment.
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Abstract CONCLUSIONS: In this exploratory study, bone-metastatic CRPC patients with inactivating HRD mutations demonstrated significantly improved ALP responses and time to ALP progression. These results should motivate prospective validation of the "synthetic lethality" hypothesis between HRD mutations and radium-223 activity.
520 ## - SUMMARY, ETC.
Abstract Copyright (c) 2018 European Association of Urology. Published by Elsevier B.V. All rights reserved.
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Abstract DESIGN, SETTING, AND PARTICIPANTS: This is a retrospective single-institution study. Medical records of 190 mCRPC patients for whom germline and/or somatic DNA sequencing data were available were reviewed. Of these patients, 28 had received standard-of-care radium-223 at Johns Hopkins between February 2013 and February 2018.
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Abstract OBJECTIVE: To evaluate the potential impact of germline or somatic HR-deficiency (HRD) mutations on radium-223 efficacy in mCRPC with bone metastasis.
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Abstract OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: Alkaline phosphatase (ALP) responses and time-to-ALP-progression were the coprimary endpoints. Prostate-specific antigen (PSA) responses, overall survival (OS), and time to next systemic therapy were also evaluated.
520 ## - SUMMARY, ETC.
Abstract PATIENT SUMMARY: In this report, we retrospectively examined outcomes to metastatic prostate cancer in patients with and without DNA repair mutations who received radium-223, a therapy that kills cancer cells by causing direct DNA damage. Our study suggested that patients who have inherited or acquired DNA repair gene mutations derived greater benefit from radium-223 when compared with patients without these mutations. We concluded that radium-223 might have an important role in this setting; however, prospective studies are needed to confirm whether DNA repair mutations truly make radium-223 work better or not.
520 ## - SUMMARY, ETC.
Abstract RESULTS AND LIMITATIONS: Of the 28 patients included, 10 men (35.7%) had a germline/somatic HRD mutation (three in BRCA2, and one each in ATM, ATR, CHEK2, FANCG, FANCI, FANCL, and PALB2) and 18 (64.3%) did not. Men with HRD mutations (HRD+) had numerically lower ages (66 vs 73yr, p=0.25), more soft-tissue metastases (50% vs 38%, p=0.43), and higher baseline ALP levels (130 vs 108 U/l, p=0.84). Compared with HRD(-) men, HRD(+) patients showed greater ALP responses (80% vs 39%, p=0.04), longer time to ALP progression (median10.4 vs 5.8mo, hazard ratio [HR] 6.4, p=0.005), and a trend toward longer OS (median 36.9 vs 19.0mo, HR 3.3, p=0.11). PSA responses (0% vs 0%, p>0.99) and time to next systemic therapy (HR 1.5, p=0.39) were similar between the two groups. Results are limited by the retrospective nature of the analysis and the small sample size.
546 ## - LANGUAGE NOTE
Language note English
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Topical term or geographic name entry element IN PROCESS -- NOT YET INDEXED
651 ## - SUBJECT ADDED ENTRY--GEOGRAPHIC NAME
Institution MedStar Union Memorial Hospital
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Department Internal Medicine
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Medline publication type Journal Article
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Local Authors Qazi, Fahad
790 ## - Authors
All authors Antonarakis ES, Carducci MA, Denmeade SR, DeWeese TL, Eisenberger MA, Hassan S, Isaacsson Velho P, Markowski MC, Qazi F, Song DY, Thorek DL, Tran PT
856 ## - ELECTRONIC LOCATION AND ACCESS
DOI <a href="https://dx.doi.org/10.1016/j.eururo.2018.09.040">https://dx.doi.org/10.1016/j.eururo.2018.09.040</a>
Public note https://dx.doi.org/10.1016/j.eururo.2018.09.040
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Journal Article
Item type description Article
Holdings
Withdrawn status Lost status Damaged status Not for loan Collection Home library Current library Date acquired Total Checkouts Full call number Barcode Date last seen Price effective from Koha item type
          MedStar Authors Catalog MedStar Authors Catalog 10/10/2018   30293905 30293905 10/10/2018 03/12/2023 Journal Article

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