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The administration of four-factor prothrombin complex concentrate exacerbates thrombin generation in trauma patients at risk of massive transfusion: an ancillary study of the PROCOAG trial
Greze, J., Marlu, R., Baud, M., Seyve, L., Gauss, T., Bouzat, P.
Critical care (London, England). 2024;28(1):51
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Efficacy and Safety of Early Administration of 4-Factor Prothrombin Complex Concentrate in Patients With Trauma at Risk of Massive Transfusion: The PROCOAG Randomized Clinical Trial
Bouzat P, Charbit J, Abback PS, Huet-Garrigue D, Delhaye N, Leone M, Marcotte G, David JS, Levrat A, Asehnoune K, et al
Jama. 2023
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Abstract
IMPORTANCE Optimal transfusion strategies in traumatic hemorrhage are unknown. Reports suggest a beneficial effect of 4-factor prothrombin complex concentrate (4F-PCC) on blood product consumption. OBJECTIVE To investigate the efficacy and safety of 4F-PCC administration in patients at risk of massive transfusion. DESIGN, SETTING, AND PARTICIPANTS Double-blind, randomized, placebo-controlled superiority trial in 12 French designated level I trauma centers from December 29, 2017, to August 31, 2021, involving consecutive patients with trauma at risk of massive transfusion. Follow-up was completed on August 31, 2021. INTERVENTIONS Intravenous administration of 1 mL/kg of 4F-PCC (25 IU of factor IX/kg) vs 1 mL/kg of saline solution (placebo). Patients, investigators, and data analysts were blinded to treatment assignment. All patients received early ratio-based transfusion (packed red blood cells:fresh frozen plasma ratio of 1:1 to 2:1) and were treated according to European traumatic hemorrhage guidelines. MAIN OUTCOMES AND MEASURES The primary outcome was 24-hour all blood product consumption (efficacy); arterial or venous thromboembolic events were a secondary outcome (safety). RESULTS Of 4313 patients with the highest trauma level activation, 350 were eligible for emergency inclusion, 327 were randomized, and 324 were analyzed (164 in the 4F-PCC group and 160 in the placebo group). The median (IQR) age of participants was 39 (27-56) years, Injury Severity Score was 36 (26-50 [major trauma]), and admission blood lactate level was 4.6 (2.8-7.4) mmol/L; prehospital arterial systolic blood pressure was less than 90 mm Hg in 179 of 324 patients (59%), 233 patients (73%) were men, and 226 (69%) required expedient hemorrhage control. There was no statistically or clinically significant between-group difference in median (IQR) total 24-hour blood product consumption (12 [5-19] U in the 4F-PCC group vs 11 [6-19] U in the placebo group; absolute difference, 0.2 U [95% CI, -2.99 to 3.33]; Pā=ā.72). In the 4F-PCC group, 56 patients (35%) presented with at least 1 thromboembolic event vs 37 patients (24%) in the placebo group (absolute difference, 11% [95% CI, 1%-21%]; relative risk, 1.48 [95% CI, 1.04-2.10]; Pā=ā.03). CONCLUSIONS AND RELEVANCE Among patients with trauma at risk of massive transfusion, there was no significant reduction of 24-hour blood product consumption after administration of 4F-PCC, but thromboembolic events were more common. These findings do not support systematic use of 4F-PCC in patients at risk of massive transfusion. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT03218722.
PICO Summary
Population
Patients with trauma at risk of massive transfusion enrolled in the PROCOAG trial, in 12 level I trauma centers in France (n= 327).
Intervention
Intravenous administration of 4-factor prothrombin complex concentrate (4F-PCC group, n= 164).
Comparison
Saline solution (placebo group, n= 160).
Outcome
The primary outcome was the total number of all blood product units (RBC, FFP, and platelet concentrate) consumed within the first 24 hours after arrival in the trauma bay. The secondary outcomes were arterial or venous thromboembolic events. There was no statistically or clinically significant between-group difference in median (IQR) total 24-hour blood product consumption (12 [5-19] U in the 4F-PCC group vs. 11 [6-19] U in the placebo group; absolute difference, 0.2 U, 95% CI [-2.99, 3.33]). In the 4F-PCC group, 56 patients (35%) presented with at least 1 thromboembolic event vs. 37 patients (24%) in the placebo group (absolute difference, 11%, 95% CI [1%, 21%]; relative risk, 1.48, 95% CI [1.04, 2.10]).
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Safety of a 4-factor prothrombin complex concentrate versus plasma for vitamin K antagonist reversal: an integrated analysis of two phase IIIb clinical trials
Milling TJ Jnr, Refaai MA, Sarode R, Lewis B, Mangione A, Durn BL, Harman A, Lee ML, Goldstein JN
Academic Emergency Medicine : Official Journal of the Society for Academic Emergency Medicine. 2016;23((4):):466-75
Abstract
OBJECTIVES Clinicians often need to rapidly reverse vitamin K antagonists in the setting of major hemorrhage or urgent need for surgery. Little is known about the safety profile of the traditional reversal agent, plasma, or the newly approved agent, four-factor prothrombin complex concentrate (4F-PCC), in a randomized setting. This is an integrated analysis of safety data from two clinical trials that evaluated 4F-PCC versus plasma for the treatment of patients requiring rapid vitamin K antagonist reversal for acute major bleeding or prior to an urgent surgical/invasive procedure. METHODS This descriptive analysis comprised adverse event data from two phase IIIb, randomized, controlled trials. The bleeding and surgical studies were performed across 36 and 33 sites, respectively, in nine countries, with the integrated analysis comprising 388 patients (4F-PCC: n=191; plasma: n=197) aged ≥18 years, who required vitamin K antagonist reversal due to major bleeding or prior to an urgent surgical/invasive procedure. Patients received either 4F-PCC, containing non-activated factors II, VII, IX, X and proteins C and S (Beriplex(R) /Kcentra(R) , CSL Behring), or plasma, both dosed according to baseline international normalized ratio and body weight. Patients were also to receive vitamin K1. Adverse events and serious adverse events were assessed up to Day 10 and 45, respectively. RESULTS The proportion of patients with adverse events (4F-PCC: 115/191 [60.2%]; plasma: 124/197 [62.9%]) and serious adverse events (4F-PCC: 54/191 [28.3%]; plasma: 49/197 [24.9%]) was similar between groups. The proportion of patients with thromboembolic events was also similar between groups (4F-PCC: 14/191 [7.3%]; plasma: 14/197 [7.1%]). There were 13 (6.8%) deaths in the 4F-PCC group and 13 (6.6%) in the plasma group. Fluid overload events occurred in more patients in the plasma group than the 4F-PCC group (25 [12.7%] and 9 [4.7%], respectively). CONCLUSIONS These safety data represent the largest controlled assessment of a 4F-PCC to date. For patients requiring urgent vitamin K antagonist reversal, 4F-PCC had a similar safety profile to plasma (adverse events, serious adverse events, thromboembolic events and deaths), but was associated with fewer fluid overload events. This article is protected by copyright. All rights reserved.
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Increased risk of volume overload with plasma compared with four-factor prothrombin complex concentrate for urgent vitamin K antagonist reversal
Refaai MA, Goldstein JN, Lee ML, Durn BL, Milling TJ Jr, Sarode R
Transfusion. 2015;55((11)):2722-9.
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Abstract
BACKGROUND Plasma is commonly used for vitamin K antagonist (VKA) reversal, but observational studies suggest that it is associated with transfusion-related adverse reactions (e.g., volume overload). However, this issue has not previously been addressed in a randomized controlled trial (RCT). STUDY DESIGN AND METHODS Factors associated with volume overload were examined using data from two Phase IIIb RCTs comparing plasma with four-factor prothrombin complex concentrate (4F-PCC, Beriplex/Kcentra, CSL Behring) for urgent VKA reversal. VKA-treated patients with major bleeding (NCT00708435) or requiring an urgent surgical or invasive procedure (NCT00803101) were randomly assigned (1:1) to receive either plasma or 4F-PCC, concomitant with vitamin K. Adverse events (AEs) and serious AEs were prospectively captured up to Day 10 and 45, respectively. Volume overload predictors were evaluated on a univariate and multivariate basis. RESULTS A total of 388 patients (4F-PCC, n=191; plasma, n=197) were enrolled. Volume overload occurred in 34 (9%) patients (4F-PCC, n=9; plasma, n=25). In univariate analyses, use of plasma (vs. 4F-PCC), use of nonstudy plasma and/or platelets, race, history of congestive heart failure (CHF), and history of renal disease were associated with volume overload. In multivariate analyses, use of plasma (vs. 4F-PCC), history of CHF, and history of renal disease were independent volume overload predictors. In an additional analysis restricted to volume overload events recorded up to Day 7, only use of plasma (vs. 4F-PCC) was an independent volume overload predictor. CONCLUSIONS After adjusting for other potential risk factors, plasma use was independently associated with a greater risk of volume overload than 4F-PCC in patients requiring urgent VKA reversal.Copyright © 2015 AABB.
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A French multicenter randomised trial comparing two dose-regimens of prothrombin complex concentrates in urgent anticoagulation reversal
Kerebel D, Joly LM, Honnart D, Schmidt J, Galanaud D, Negrier C, Kursten F, Coriat P, Lex206 Investigator Group
Critical Care (London, England). 2013;17((1):):R4.
Abstract
INTRODUCTION Prothrombin complex concentrates (PCC) are haemostatic blood preparations indicated for urgent anticoagulation reversal, though the optimal dose for effective reversal is still under debate. The latest generation of PCCs include four coagulation factors, the so-called 4-factor PCC. The aim of this study was to compare the efficacy and safety of two doses, 25 and 40 IU/kg, of 4-factor PCC in vitamin K antagonist (VKA) associated intracranial haemorrhage. METHODS We performed a phase III, prospective, randomised, open-label study including patients with objectively diagnosed VKA-associated intracranial haemorrhage between November 2008 and April 2011 in 22 centres in France. Patients were randomised to receive 25 or 40 IU/kg of 4-factor PCC. The primary endpoint was the international normalised ratio (INR) 10 minutes after the end of 4-factor PCC infusion. Secondary endpoints were changes in coagulation factors, global clinical outcomes and incidence of adverse events (AEs). RESULTS A total of 59 patients were randomised: 29 in the 25 IU/kg and 30 in the 40 IU/kg group. Baseline demographics and clinical characteristics were comparable between the groups. The mean INR was significantly reduced to 1.2 - and <1.5 in all patients of both groups - 10 minutes after 4-factor PCC infusion. The INR in the 40 IU/kg group was significantly lower than in the 25 IU/kg group 10 minutes (P = 0.001), 1 hour (P = 0.001) and 3 hours (P = 0.02) after infusion. The 40 IU/kg dose was also effective in replacing coagulation factors such as PT (P = 0.038), FII (P = 0.001), FX (P <0.001), protein C (P = 0.002) and protein S (0.043), 10 minutes after infusion. However, no differences were found in haematoma volume or global clinical outcomes between the groups. Incidence of death and thrombotic events was similar between the groups. CONCLUSIONS Rapid infusion of both doses of 4-factor PCC achieved an INR of 1.5 or less in all patients with a lower INR observed in the 40 IU/kg group. No safety concerns were raised by the 40 IU/kg dose. Further trials are needed to evaluate the impact of the high dose of 4-factor PCC on functional outcomes and mortality. TRIAL REGISTRATION Eudra CT number 2007-000602-73.