PMID- 24127170 OWN - NLM STAT- MEDLINE DCOM- 20140623 LR - 20211021 IS - 1179-1918 (Electronic) IS - 1173-2563 (Linking) VI - 33 IP - 12 DP - 2013 Dec TI - Bemiparin versus unfractionated heparin as bridging therapy in the perioperative management of patients on vitamin K antagonists: the BERTA study. PG - 921-8 LID - 10.1007/s40261-013-0141-6 [doi] AB - BACKGROUND AND OBJECTIVE: The management of patients on vitamin K antagonist therapy who require an invasive procedure is problematic. A randomised, controlled, double-blind clinical trial was designed to compare the efficacy and safety of bemiparin, a low molecular weight heparin (LMWH), with unfractionated heparin (UFH) as bridging therapy: the BERTA (BEmiparin Randomised Trial on bridging Anticoagulants) study. METHODS: Two hundred and six patients on long-term oral anticoagulation therapy (OAT) requiring an invasive procedure were randomized to receive bridging therapy with bemiparin + matching placebo or UFH. OAT was resumed on day 1. The study medication was continued for 5-6 days after the procedure. The primary efficacy endpoint was the combined incidence of arterial and venous thromboembolic events. The primary safety endpoint was the incidence of major bleeding within 10 days after the invasive procedure. RESULTS: There were no thromboembolic events in the bemiparin group, but two events (2.2 %) occurred in the UFH group. No major bleeding occurred in either group, but minor bleeding occurred in four patients (4.3 %) and six patients (6.1 %) in the bemiparin and UHF groups, respectively. No deaths and no cases of severe thrombocytopenia occurred during the whole study period. CONCLUSION: Despite its small size, the BERTA study is the first randomised, double-blind clinical trial comparing UFH with a fixed high-risk thromboprophylactic dose of an LMWH as bridging therapy. There were no thromboembolic events and fewer bleeding episodes in the bemiparin group than in the UFH group, hence we suggest that bemiparin is at least as safe as UFH as bridging therapy. FAU - Santamaria, Amparo AU - Santamaria A AD - Hospital de la Santa Creu i Sant Pau Barcelona, Barcelona, Spain, msantamaria@santpau.cat. FAU - Ugarriza, Arantxa AU - Ugarriza A FAU - Munoz, Carmen AU - Munoz C FAU - De Diego, Isabel AU - De Diego I FAU - Lopez-Chulia, Francisca AU - Lopez-Chulia F FAU - Benet, Carmen AU - Benet C FAU - Martinez-Gonzalez, Javier AU - Martinez-Gonzalez J FAU - Gomez, Natividad AU - Gomez N FAU - Pina, Elena AU - Pina E FAU - Ortin, Xavier AU - Ortin X FAU - Marco, Pascual AU - Marco P FAU - Roncales, Franciso Javier AU - Roncales FJ FAU - Fontcuberta, Jordi AU - Fontcuberta J LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - New Zealand TA - Clin Drug Investig JT - Clinical drug investigation JID - 9504817 RN - 0 (Anticoagulants) RN - 0 (Heparin, Low-Molecular-Weight) RN - 12001-79-5 (Vitamin K) RN - 9005-49-6 (Heparin) RN - PUE0TO3XDR (bemiparin) SB - IM MH - Aged MH - Aged, 80 and over MH - Anticoagulants/*therapeutic use MH - Female MH - Heparin/*therapeutic use MH - Heparin, Low-Molecular-Weight/*therapeutic use MH - Humans MH - Male MH - Perioperative Care MH - Treatment Outcome MH - Vitamin K/*antagonists & inhibitors EDAT- 2013/10/16 06:00 MHDA- 2014/06/24 06:00 CRDT- 2013/10/16 06:00 PHST- 2013/10/16 06:00 [entrez] PHST- 2013/10/16 06:00 [pubmed] PHST- 2014/06/24 06:00 [medline] AID - 10.1007/s40261-013-0141-6 [doi] PST - ppublish SO - Clin Drug Investig. 2013 Dec;33(12):921-8. doi: 10.1007/s40261-013-0141-6.