{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,26]],"date-time":"2026-06-26T08:16:29Z","timestamp":1782461789077,"version":"3.54.5"},"reference-count":18,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2023,9,27]],"date-time":"2023-09-27T00:00:00Z","timestamp":1695772800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Andrology"],"published-print":{"date-parts":[[2024,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Testosterone plays an important role in collagen metabolism, transforming growth factor\u2010\u03b21 expression, and wound healing, which are all critical factors in pathogenesis of Peyronie's disease. Some clinical studies have suggested an association between Peyronie's disease and hypogonadism.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objective<\/jats:title><jats:p>We sought to investigate whether baseline total testosterone levels influence response to intralesional collagenase clostridium histolyticum in Peyronie's disease.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A retrospective review of patients receiving collagenase clostridium histolyticum injections with available total testosterone levels within 1 year of initial injection was conducted at a single institution. Baseline demographics, hypogonadal status, total testosterone, number of collagenase clostridium histolyticum cycles, and pre\u2010 and post\u2010treatment degrees of curvature were collected. Hypogonadism was defined as total testosterone &lt;300\u00a0ng\/dL.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results and discussion<\/jats:title><jats:p>Thirty\u2010six men were included with mean age of 58.2 years (SD 10.4) and mean body mass index 26.8 (SD 3.2). The mean total testosterone was 459.2\u00a0ng\/dL (SD 144.0), and four (11.1%) were hypogonadal. Mean pre\u2010treatment curvature was 47.6\u00b0, and mean post\u2010treatment curvature was 27.8\u00b0, with mean improvement of 19.9\u00b0 (40.1%). Hypogonadal status was not significantly associated with more severe curvature, 46.4\u00b0 among hypogonadal men as to 57.5\u00b0 among eugonadal men (<jats:italic>p<\/jats:italic>\u00a0=\u00a00.32). On linear regression analysis, total testosterone did not significantly predict improvement in degrees (<jats:italic>\u03b2<\/jats:italic>\u00a0=\u00a0\u20130.02; <jats:italic>R<\/jats:italic><jats:sup>2<\/jats:sup>\u00a0=\u00a00.06; <jats:italic>p<\/jats:italic>\u00a0=\u00a00.14) or percent (<jats:italic>\u03b2<\/jats:italic>\u00a0=\u00a00.0; <jats:italic>R<\/jats:italic><jats:sup>2<\/jats:sup>\u00a0=\u00a00.05; <jats:italic>p<\/jats:italic>\u00a0=\u00a00.18). Improvement in neither degrees nor percent differed significantly by hypogonadal status (<jats:italic>p<\/jats:italic>\u00a0=\u00a00.41 and 0.82, respectively). The cycle number did significantly predict greater improvement in curvature on both univariate and multivariate analyses (<jats:italic>\u03b2<\/jats:italic>\u00a0=\u00a05.7; <jats:italic>R<\/jats:italic><jats:sup>2<\/jats:sup>\u00a0=\u00a00.34; <jats:italic>p<\/jats:italic>\u00a0&lt;\u00a00.01).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Neither total testosterone nor hypogonadism is associated with a degree of improvement after collagenase clostridium histolyticum treatment.<\/jats:p><\/jats:sec>","DOI":"10.1111\/andr.13532","type":"journal-article","created":{"date-parts":[[2023,9,27]],"date-time":"2023-09-27T11:59:55Z","timestamp":1695815995000},"page":"830-834","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Peyronie's disease response to intralesional collagenase clostridium histolyticum therapy is independent of baseline testosterone"],"prefix":"10.1111","volume":"12","author":[{"given":"Douglas","family":"Schneider","sequence":"first","affiliation":[{"name":"Irvine Department of Urology University of California  Irvine California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mitchell","family":"O'Leary","sequence":"additional","affiliation":[{"name":"Irvine Department of Urology University of California  Irvine California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eliad","family":"Amini","sequence":"additional","affiliation":[{"name":"Irvine Department of Urology University of California  Irvine California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jake","family":"Miller","sequence":"additional","affiliation":[{"name":"Irvine Department of Urology University of California  Irvine California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nick","family":"Hassas","sequence":"additional","affiliation":[{"name":"Irvine Department of Urology University of California  Irvine California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jeanie","family":"Nguyen","sequence":"additional","affiliation":[{"name":"Irvine Department of Urology University of California  Irvine California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5396-1364","authenticated-orcid":false,"given":"Muhammed A. Moukhtar","family":"Hammad","sequence":"additional","affiliation":[{"name":"Irvine Department of Urology University of California  Irvine California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David","family":"Barham","sequence":"additional","affiliation":[{"name":"Irvine Department of Urology University of California  Irvine California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Faysal A.","family":"Yafi","sequence":"additional","affiliation":[{"name":"Irvine Department of Urology University of California  Irvine California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2023,9,27]]},"reference":[{"key":"e_1_2_11_2_1","first-page":"107","article-title":"Role of collagenase clostridium histolyticum in Peyronie's disease","volume":"9","author":"Peak TC","year":"2015","journal-title":"Biol Targets Ther"},{"key":"e_1_2_11_3_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41585-018-0117-7"},{"key":"e_1_2_11_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.juro.2015.05.098"},{"key":"e_1_2_11_5_1","doi-asserted-by":"publisher","DOI":"10.1177\/1756287218755020"},{"key":"e_1_2_11_6_1","first-page":"70","article-title":"Augmenting intralesional collagenase treatment with testosterone therapy provides greater self\u2010assessed improvement in penile curvature due to Peyronie's disease. 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