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Effect of Finasteride on Serum Androstenedione and Risk of Prostate Cancer Within the Prostate Cancer Prevention Trial: Differential Effect on High- and Low-grade Disease
Objective To evaluate the effect of finasteride on serum androst-4-ene-3,17-dione (androstenedione) and its association with prostate cancer risk among subjects who participated in the Prostate Cancer Prevention Trial. Methods We analyzed serum androstenedione levels in 317 prostate cancer cases and...
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Published in: | Urology (Ridgewood, N.J.) N.J.), 2015-03, Vol.85 (3), p.616-620 |
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creator | Hoque, Ashraful Yao, Song Till, Cathee Kristal, Alan R Goodman, Phyllis J Hsing, Ann W Tangen, Catherine M Platz, Elizabeth A Stanczyk, Frank Z Reichardt, Juergen K.V vanBokhoven, Adrie Neuhouser, Marian L Santella, Regina M Figg, William D Price, Douglas K Parnes, Howard L Lippman, Scott M Ambrosone, Christine B Thompson, Ian M |
description | Objective To evaluate the effect of finasteride on serum androst-4-ene-3,17-dione (androstenedione) and its association with prostate cancer risk among subjects who participated in the Prostate Cancer Prevention Trial. Methods We analyzed serum androstenedione levels in 317 prostate cancer cases and 353 controls, nested in the Prostate Cancer Prevention Trial, a randomized placebo-controlled trial that found finasteride decreased prostate cancer risk. Androstenedione is the second most important circulating androgen in men besides testosterone and also a substrate for 5α-reductase enzyme. Results We observed a 22% increase in androstenedione levels compared with the baseline values in subjects who were treated with finasteride for 3 years. This significant increase did not vary by case-control status. Adjusted odds ratio and 95% confidence interval for the third tertile of absolute change in androstenedione levels compared with the first tertile were 0.42 (95% confidence interval, 0.19-0.94) for low-grade (Gleason score |
doi_str_mv | 10.1016/j.urology.2014.11.024 |
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Methods We analyzed serum androstenedione levels in 317 prostate cancer cases and 353 controls, nested in the Prostate Cancer Prevention Trial, a randomized placebo-controlled trial that found finasteride decreased prostate cancer risk. Androstenedione is the second most important circulating androgen in men besides testosterone and also a substrate for 5α-reductase enzyme. Results We observed a 22% increase in androstenedione levels compared with the baseline values in subjects who were treated with finasteride for 3 years. This significant increase did not vary by case-control status. Adjusted odds ratio and 95% confidence interval for the third tertile of absolute change in androstenedione levels compared with the first tertile were 0.42 (95% confidence interval, 0.19-0.94) for low-grade (Gleason score <7) cases. Similar results were observed when analyzed using percent change. There were no significant associations between serum androstenedione levels and the risk of high-grade disease. Conclusion The results of this nested case-control study confirm that finasteride blocks the conversion of testosterone to dihydrotestosterone (DHT) and of androstenedione to 5α-androstanedione-3,17-dione, which also leads to the reduction of DHT formation. This decrease in DHT may help reduce the risk of low-grade prostate cancer in men. Our data on a differential effect of androstenedione also suggest that some high-grade prostate cancers may not require androgen for progression.</description><identifier>ISSN: 0090-4295</identifier><identifier>EISSN: 1527-9995</identifier><identifier>DOI: 10.1016/j.urology.2014.11.024</identifier><identifier>PMID: 25733274</identifier><language>eng</language><publisher>United States: Elsevier Inc</publisher><subject>Androstenedione - blood ; Case-Control Studies ; Double-Blind Method ; Finasteride - pharmacology ; Finasteride - therapeutic use ; Humans ; Male ; Middle Aged ; Neoplasm Grading ; Prostatic Neoplasms - epidemiology ; Prostatic Neoplasms - pathology ; Prostatic Neoplasms - prevention & control ; Risk Assessment ; Urology</subject><ispartof>Urology (Ridgewood, N.J.), 2015-03, Vol.85 (3), p.616-620</ispartof><rights>Elsevier Inc.</rights><rights>2015 Elsevier Inc.</rights><rights>Copyright © 2015 Elsevier Inc. All rights reserved.</rights><rights>2014 Elsevier Inc. All rights reserved. 2014</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c522t-d304251e0b0073c36f9d95ac27c2787ce6fd32c478f94cad80903fb8a358f683</citedby><cites>FETCH-LOGICAL-c522t-d304251e0b0073c36f9d95ac27c2787ce6fd32c478f94cad80903fb8a358f683</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,881,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/25733274$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Hoque, Ashraful</creatorcontrib><creatorcontrib>Yao, Song</creatorcontrib><creatorcontrib>Till, Cathee</creatorcontrib><creatorcontrib>Kristal, Alan R</creatorcontrib><creatorcontrib>Goodman, Phyllis J</creatorcontrib><creatorcontrib>Hsing, Ann W</creatorcontrib><creatorcontrib>Tangen, Catherine M</creatorcontrib><creatorcontrib>Platz, Elizabeth A</creatorcontrib><creatorcontrib>Stanczyk, Frank Z</creatorcontrib><creatorcontrib>Reichardt, Juergen K.V</creatorcontrib><creatorcontrib>vanBokhoven, Adrie</creatorcontrib><creatorcontrib>Neuhouser, Marian L</creatorcontrib><creatorcontrib>Santella, Regina M</creatorcontrib><creatorcontrib>Figg, William D</creatorcontrib><creatorcontrib>Price, Douglas K</creatorcontrib><creatorcontrib>Parnes, Howard L</creatorcontrib><creatorcontrib>Lippman, Scott M</creatorcontrib><creatorcontrib>Ambrosone, Christine B</creatorcontrib><creatorcontrib>Thompson, Ian M</creatorcontrib><title>Effect of Finasteride on Serum Androstenedione and Risk of Prostate Cancer Within the Prostate Cancer Prevention Trial: Differential Effect on High- and Low-grade Disease</title><title>Urology (Ridgewood, N.J.)</title><addtitle>Urology</addtitle><description>Objective To evaluate the effect of finasteride on serum androst-4-ene-3,17-dione (androstenedione) and its association with prostate cancer risk among subjects who participated in the Prostate Cancer Prevention Trial. Methods We analyzed serum androstenedione levels in 317 prostate cancer cases and 353 controls, nested in the Prostate Cancer Prevention Trial, a randomized placebo-controlled trial that found finasteride decreased prostate cancer risk. Androstenedione is the second most important circulating androgen in men besides testosterone and also a substrate for 5α-reductase enzyme. Results We observed a 22% increase in androstenedione levels compared with the baseline values in subjects who were treated with finasteride for 3 years. This significant increase did not vary by case-control status. Adjusted odds ratio and 95% confidence interval for the third tertile of absolute change in androstenedione levels compared with the first tertile were 0.42 (95% confidence interval, 0.19-0.94) for low-grade (Gleason score <7) cases. Similar results were observed when analyzed using percent change. There were no significant associations between serum androstenedione levels and the risk of high-grade disease. Conclusion The results of this nested case-control study confirm that finasteride blocks the conversion of testosterone to dihydrotestosterone (DHT) and of androstenedione to 5α-androstanedione-3,17-dione, which also leads to the reduction of DHT formation. This decrease in DHT may help reduce the risk of low-grade prostate cancer in men. Our data on a differential effect of androstenedione also suggest that some high-grade prostate cancers may not require androgen for progression.</description><subject>Androstenedione - blood</subject><subject>Case-Control Studies</subject><subject>Double-Blind Method</subject><subject>Finasteride - pharmacology</subject><subject>Finasteride - therapeutic use</subject><subject>Humans</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Neoplasm Grading</subject><subject>Prostatic Neoplasms - epidemiology</subject><subject>Prostatic Neoplasms - pathology</subject><subject>Prostatic Neoplasms - prevention & control</subject><subject>Risk Assessment</subject><subject>Urology</subject><issn>0090-4295</issn><issn>1527-9995</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNqFUl1v0zAUjRCIlcFPAPmRlwR_xE7Cw9DUbQyp0iZWCd4s175p3aX2ZidF_Uv8ShzaTcAekCxbuvfcc4_OcZa9JbggmIgP62IIvvPLXUExKQtCCkzLZ9mEcFrlTdPw59kE4wbnJW34UfYqxjXGWAhRvcyOKK8Yo1U5yX6ety3oHvkWXVinYg_BGkDeoRsIwwadOhN8qjow1jtAyhn01cbbceB67Kge0FQ5DQF9s_3KOtSv4EnrOsAWXJ8o0DxY1X1EZzYtDmNNdehBhEOXdrnKf2-Z-R_5Mqgk5sxGUBFeZy9a1UV4c3iPs_nF-Xx6mc-uPn-Zns5yzSntc8NwSTkBvMC4YpqJtjENV5pW6dSVBtEaRnVZ1W1TamXqZBJrF7VivG5FzY6zkz3t3bDYgNFJYlCdvAt2o8JOemXl3x1nV3Lpt7JkZc25SATvDwTB3w8Qe7mxUUPXKQd-iJIIgQUf7wTle6hOfsUA7eMaguUYs1zLQ8xyjFkSIlPMae7dnxofpx5yTYBPewAko7YWgozaQorC2JCclsbb_644-YdBd9ZZrbpb2EFc-yG4lIIkMlKJ5c3418avRkpMGMXf2S8dDdQ8</recordid><startdate>20150301</startdate><enddate>20150301</enddate><creator>Hoque, Ashraful</creator><creator>Yao, Song</creator><creator>Till, Cathee</creator><creator>Kristal, Alan R</creator><creator>Goodman, Phyllis J</creator><creator>Hsing, Ann W</creator><creator>Tangen, Catherine M</creator><creator>Platz, Elizabeth A</creator><creator>Stanczyk, Frank Z</creator><creator>Reichardt, Juergen K.V</creator><creator>vanBokhoven, Adrie</creator><creator>Neuhouser, Marian L</creator><creator>Santella, Regina M</creator><creator>Figg, William D</creator><creator>Price, Douglas K</creator><creator>Parnes, Howard L</creator><creator>Lippman, Scott M</creator><creator>Ambrosone, Christine B</creator><creator>Thompson, Ian M</creator><general>Elsevier Inc</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>7X8</scope><scope>5PM</scope></search><sort><creationdate>20150301</creationdate><title>Effect of Finasteride on Serum Androstenedione and Risk of Prostate Cancer Within the Prostate Cancer Prevention Trial: Differential Effect on High- and Low-grade Disease</title><author>Hoque, Ashraful ; Yao, Song ; Till, Cathee ; Kristal, Alan R ; Goodman, Phyllis J ; Hsing, Ann W ; Tangen, Catherine M ; Platz, Elizabeth A ; Stanczyk, Frank Z ; Reichardt, Juergen K.V ; vanBokhoven, Adrie ; Neuhouser, Marian L ; Santella, Regina M ; Figg, William D ; Price, Douglas K ; Parnes, Howard L ; Lippman, Scott M ; Ambrosone, Christine B ; Thompson, Ian M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c522t-d304251e0b0073c36f9d95ac27c2787ce6fd32c478f94cad80903fb8a358f683</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Androstenedione - blood</topic><topic>Case-Control Studies</topic><topic>Double-Blind Method</topic><topic>Finasteride - pharmacology</topic><topic>Finasteride - therapeutic use</topic><topic>Humans</topic><topic>Male</topic><topic>Middle Aged</topic><topic>Neoplasm Grading</topic><topic>Prostatic Neoplasms - epidemiology</topic><topic>Prostatic Neoplasms - pathology</topic><topic>Prostatic Neoplasms - prevention & control</topic><topic>Risk Assessment</topic><topic>Urology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hoque, Ashraful</creatorcontrib><creatorcontrib>Yao, Song</creatorcontrib><creatorcontrib>Till, Cathee</creatorcontrib><creatorcontrib>Kristal, Alan R</creatorcontrib><creatorcontrib>Goodman, Phyllis J</creatorcontrib><creatorcontrib>Hsing, Ann W</creatorcontrib><creatorcontrib>Tangen, Catherine M</creatorcontrib><creatorcontrib>Platz, Elizabeth A</creatorcontrib><creatorcontrib>Stanczyk, Frank Z</creatorcontrib><creatorcontrib>Reichardt, Juergen K.V</creatorcontrib><creatorcontrib>vanBokhoven, Adrie</creatorcontrib><creatorcontrib>Neuhouser, Marian L</creatorcontrib><creatorcontrib>Santella, Regina M</creatorcontrib><creatorcontrib>Figg, William D</creatorcontrib><creatorcontrib>Price, Douglas K</creatorcontrib><creatorcontrib>Parnes, Howard L</creatorcontrib><creatorcontrib>Lippman, Scott M</creatorcontrib><creatorcontrib>Ambrosone, Christine B</creatorcontrib><creatorcontrib>Thompson, Ian M</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Urology (Ridgewood, N.J.)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hoque, Ashraful</au><au>Yao, Song</au><au>Till, Cathee</au><au>Kristal, Alan R</au><au>Goodman, Phyllis J</au><au>Hsing, Ann W</au><au>Tangen, Catherine M</au><au>Platz, Elizabeth A</au><au>Stanczyk, Frank Z</au><au>Reichardt, Juergen K.V</au><au>vanBokhoven, Adrie</au><au>Neuhouser, Marian L</au><au>Santella, Regina M</au><au>Figg, William D</au><au>Price, Douglas K</au><au>Parnes, Howard L</au><au>Lippman, Scott M</au><au>Ambrosone, Christine B</au><au>Thompson, Ian M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of Finasteride on Serum Androstenedione and Risk of Prostate Cancer Within the Prostate Cancer Prevention Trial: Differential Effect on High- and Low-grade Disease</atitle><jtitle>Urology (Ridgewood, N.J.)</jtitle><addtitle>Urology</addtitle><date>2015-03-01</date><risdate>2015</risdate><volume>85</volume><issue>3</issue><spage>616</spage><epage>620</epage><pages>616-620</pages><issn>0090-4295</issn><eissn>1527-9995</eissn><abstract>Objective To evaluate the effect of finasteride on serum androst-4-ene-3,17-dione (androstenedione) and its association with prostate cancer risk among subjects who participated in the Prostate Cancer Prevention Trial. Methods We analyzed serum androstenedione levels in 317 prostate cancer cases and 353 controls, nested in the Prostate Cancer Prevention Trial, a randomized placebo-controlled trial that found finasteride decreased prostate cancer risk. Androstenedione is the second most important circulating androgen in men besides testosterone and also a substrate for 5α-reductase enzyme. Results We observed a 22% increase in androstenedione levels compared with the baseline values in subjects who were treated with finasteride for 3 years. This significant increase did not vary by case-control status. Adjusted odds ratio and 95% confidence interval for the third tertile of absolute change in androstenedione levels compared with the first tertile were 0.42 (95% confidence interval, 0.19-0.94) for low-grade (Gleason score <7) cases. Similar results were observed when analyzed using percent change. There were no significant associations between serum androstenedione levels and the risk of high-grade disease. Conclusion The results of this nested case-control study confirm that finasteride blocks the conversion of testosterone to dihydrotestosterone (DHT) and of androstenedione to 5α-androstanedione-3,17-dione, which also leads to the reduction of DHT formation. This decrease in DHT may help reduce the risk of low-grade prostate cancer in men. Our data on a differential effect of androstenedione also suggest that some high-grade prostate cancers may not require androgen for progression.</abstract><cop>United States</cop><pub>Elsevier Inc</pub><pmid>25733274</pmid><doi>10.1016/j.urology.2014.11.024</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Androstenedione - blood Case-Control Studies Double-Blind Method Finasteride - pharmacology Finasteride - therapeutic use Humans Male Middle Aged Neoplasm Grading Prostatic Neoplasms - epidemiology Prostatic Neoplasms - pathology Prostatic Neoplasms - prevention & control Risk Assessment Urology |
title | Effect of Finasteride on Serum Androstenedione and Risk of Prostate Cancer Within the Prostate Cancer Prevention Trial: Differential Effect on High- and Low-grade Disease |
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