Trial reportJournal of thrombosis and thrombolysis2009
Short term effects of GnRH agonists on plasma fibrinolytic balance in patients with advanced prostate cancer.
Trial report in Journal of thrombosis and thrombolysis, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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0 citing papers in PubMed, 3 citations in OpenAlex.
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Authors and funding
7 authors at 4 institutions in 2 countries.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundGonadotropin releasing hormone (GnRH) agonists are the cornerstone of metastatic prostate cancer treatment. Cardiovascular effects of GnRH agonists are unclear. In this study, we investigated the short term effects of GnRH agonists on plasma fibrinolytic parameters in patients with metastatic prostate cancer.
methodsEleven patients (mean age 69.3 +/- 6.5) with metastatic prostate cancer and a clinical indication for GnRH agonist therapy were selected. Plasma plasminogen activator inhibitor (PAI-1) antigen (Ag), tissue plasminogen activator (t-PA) Ag and thrombin-activatable fibrinolysis inhibitor (TAFI) activity levels were measured at baseline and at 4 weeks after the first dose of GnRH agonist, Goserelin Acetate (Zoladex, subcutaneous administration, 10.8 mg).
resultsSerum prostate specific antigen (PSA) levels significantly decreased from 36.6 +/- 19.3 to 1.1 +/- 0.3 ng/ml after Goserelin acetate treatment (P = 0.005). Significant changes occurred in the fibrinolytic parameters. GnRH agonists decreased plasma t-PA Ag levels (16.3 +/- 4.9 vs. 12.2 +/- 2.8 ng/ml, P = 0.047) and increased PAI-1/t-PA molar ratio (4.8 +/- 3.6 vs. 6.6 +/- 3.4, P = 0.16), on the other hand, plasma PAI-1 Ag (59.0 +/- 48.5 vs. 56.4 +/- 30.5 ng/ml, P = 0.8), and TAFI levels (130.6 +/- 9.5 vs. 124.2 +/- 26.5% activity, P = 0.3) did not change significantly.
conclusionThis study provides evidence that GnRH agonists may inhibit fibrinolytic system by decreasing t-PA levels.
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