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Prostate-Specific Antigen Nadir and Time to Prostate-Specific Antigen Nadir Following Maximal Androgen Blockade Independently Predict Prognosis in Patients with Metastatic Prostate Cancer

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dc.contributor.authorHong, SY-
dc.contributor.authorCho, DS-
dc.contributor.authorKim, SI-
dc.contributor.authorAhn, HS-
dc.contributor.authorKim, SJ-
dc.date.accessioned2014-07-07T06:24:37Z-
dc.date.available2014-07-07T06:24:37Z-
dc.date.issued2012-
dc.identifier.issn2005-6737-
dc.identifier.urihttp://repository.ajou.ac.kr/handle/201003/10485-
dc.description.abstractPurpose: To evaluate the influence of prostate-specific antigen (PSA) kinetics following maximal androgen blockade (MAB) on disease progression and cancer-specific survival in patients with metastatic, hormone-sensitive prostate cancer.
Materials and Methods: One hundred thirty-one patients with metastatic, hormone-sensitive prostate cancer treated with MAB at our institution were included in this study. Patients' characteristics, PSA at MAB initiation, PSA nadir, time to PSA nadir (TTN), and PSA decline were analyzed by using univariate and multivariate analysis.
Results: At a median follow-up of 30 months, 97 patients (74.0%) showed disease progression and 65 patients (49.6%) died. Fifty-nine patients (45.0%) died from prostate cancer. In the univariate analysis, PSA at MAB initiation, PSA nadir, TTN, and PSA decline were significant predictors of progression-free survival. Also, PSA nadir, TTN, and PSA decline were significant predictors of cancer-specific survival. In the multivariate analysis, higher PSA nadir (≥0.2 ng/ml) and shorter TTN (<8 months) were independent predictors of shorter progression-free and cancer-specific survival. In the combined analysis of PSA nadir and TTN, patients with higher PSA nadir and shorter TTN had the worst progression-free survival (hazard ratio [HR], 14.098; p<0.001) and cancer-specific survival (HR, 14.050; p<0.001) compared with those with lower PSA nadir and longer TTN.
Conclusions: Our results suggest that higher PSA nadir level and shorter TTN following MAB are associated with higher risk of disease progression and poorer survival in patients with metastatic, hormone-sensitive prostate cancer. Furthermore, these two variables have a synergistic effect on the outcome.
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dc.formatapplication/pdf-
dc.language.isoen-
dc.titleProstate-Specific Antigen Nadir and Time to Prostate-Specific Antigen Nadir Following Maximal Androgen Blockade Independently Predict Prognosis in Patients with Metastatic Prostate Cancer-
dc.typeArticle-
dc.subject.keywordPrognosis-
dc.subject.keywordProstate-specific antigen-
dc.subject.keywordProstatic neoplasms-
dc.contributor.affiliatedAuthor김, 선일-
dc.contributor.affiliatedAuthor안, 현수-
dc.contributor.affiliatedAuthor김, 세중-
dc.type.localJournal Papers-
dc.identifier.doi10.4111/kju.2012.53.9.607-
dc.citation.titleKorean journal of urology-
dc.citation.volume53-
dc.citation.number9-
dc.citation.date2012-
dc.citation.startPage607-
dc.citation.endPage613-
dc.identifier.bibliographicCitationKorean journal of urology, 53(9). : 607-613, 2012-
dc.identifier.eissn2005-6745-
dc.relation.journalidJ020056737-
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Urology
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