Abstract:
:Alteplase is standard therapy for patients with acute, massive pulmonary embolism. The novel plasminogen activator desmoteplase displays high fibrin specificity and selectivity for fibrinbound plasminogen. In a preclinical model desmoteplase was twice as potent with a shorter lysis time and lower reocclusion rate. We conducted a phase II study comparing 125, 180, and 250 microg/kg bodyweight desmoteplase with 100 mg alteplase. Efficacy criteria were total pulmonary resistance (TPR), mean pulmonary artery pressure (mPAP), and Miller Index. Intention to treat analysis of 34 patients. The reduction of TPR after 24 hours was comparable between desmoteplase 180 microg/kg and alteplase (-48.0 +/- 22.4 vs. -50.4 +/- 16.3%; p = n.s. vs. alteplase; p = 0.0002 and p<0.0001 vs. baseline). The greatest effect was achieved with desmoteplase 250 microg/kg (-56.0 +/- 29.4%; p = n.s. vs. alteplase, p = 0.0055 vs. baseline). Two hours after treatment PAP was reduced by 27.9 (p = 0.0004 vs. baseline) and 30.4% (p = 0.015 vs. baseline) with the higher doses of desmoteplase and 29.6% with alteplase (p = 0.0006 vs. baseline). Further PAP reduction after 6 hours was most pronounced in the desmoteplase 250 microg/kg group (-40.1 +/- 18.0%; p = 0.0028 vs. baseline). The reduction of the Miller Index was greatest using desmoteplase 250 microg/kg (-35.0 +/- 21.7%; p = 0.011 vs. baseline), and alteplase (-41.6 +/- 27.2%; p = 0.0003 vs. baseline). Safety did not differ among the 4 groups. The study results suggest that desmoteplase at doses of 180 and 250 microg/kg had similar or greater efficacy compared to alteplase 100 mg. Onset of action was faster, safety was comparable.
journal_name
Thromb Haemostjournal_title
Thrombosis and haemostasisauthors
Tebbe U,Bramlage P,Graf A,Lechleitner P,Bode C,Riess FC,Clemens N,Al-Rawi Y,Konstantinides S,Goldhaber SZsubject
Has Abstractpub_date
2009-03-01 00:00:00pages
557-62issue
3eissn
0340-6245issn
2567-689Xpii
09030557journal_volume
101pub_type
杂志文章,多中心研究,随机对照试验abstract::Elucidation of the molecular defects responsible for antithrombin III deficiency is proceeding rapidly. In order that a record is kept of the new and duplicated mutations that are found, we have compiled a database that we plan to update annually. In this, the first report of the database, we list 6 antithrombin III l...
journal_title:Thrombosis and haemostasis
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journal_title:Thrombosis and haemostasis
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journal_title:Thrombosis and haemostasis
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