Trial reportJournal of thrombosis and haemostasis : JTH2021
Rivaroxaban for extended thromboprophylaxis in acutely ill medical patients 75 years of age or older.
Trial report in Journal of thrombosis and haemostasis : JTH, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
6 citing papers in PubMed, 7 citations in OpenAlex.
- Benefit-Risk Assessment of Rivaroxaban in Older Patients With Nonvalvular Atrial Fibrillation or Venous Thromboembolism.Drugs & aging · 2025Trial
- Rivaroxaban for extended thromboprophylaxis in acutely ill medical patients 75 years of age or older.Journal of thrombosis and haemostasis : JTH · 2021Trial
- Evaluating Rivaroxaban for Thromboprophylaxis in Cancer Patients with Long-Term Venous Access Devices: A Retrospective Cohort Study.Vascular health and risk management · 2025Article
- Severe Pain and Postoperative Effects during Hysterosalpingography: A Meta-Analysis.Iranian journal of public health · 2024Review
- Thromboprophylaxis in hospitalized and nonhospitalized medical patients: what's new?Blood advances · 2023Article
- Rivaroxaban Plus Aspirin for Extended Thromboprophylaxis in Acutely Ill Medical Patients: Insights from the MARINER Trial.TH open : companion journal to thrombosis and haemostasis · 2022Article
Corrections and comments
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Authors and funding
16 authors at 13 institutions in 5 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAlthough older patients are at increased risk for venous thromboembolism (VTE), thromboprophylaxis is underused because of bleeding concerns. The MARINER trial evaluated whether rivaroxaban reduced symptomatic postdischarge VTE in acutely ill medical patients.
objectivesWe hypothesized that rivaroxaban would have a favorable benefit/risk profile in patients ≥75 years of age.
methodsPatients were randomized in a double-blind manner at hospital discharge to rivaroxaban (10 mg/day for creatinine clearance ≥50 ml/min; 7.5 mg/day for ≥30-<50 ml/min) or placebo for 45 days. Using a Cox proportional hazard model including treatment as a covariate, we compared the risk of the primary efficacy outcome (symptomatic VTE plus VTE-related death in the intention-to-treat population) and safety outcome (International Society on Thrombosis and Haemostasis major bleeding in the safety population) in the prespecified subgroups of patients ≥ and <75 years of age.
resultsThe primary event rate in patients ≥75 years of age was 2-fold higher than that in those <75 years. The incidence of the primary efficacy outcomes in both age groups was numerically lower with rivaroxaban than with placebo (≥75: 1.2% and 1.6%, HR 0.73, 95% CI 0.43-1.22; <75 0.6% and 0.8%, HR 0.78, 95% CI 0.46-1.32; interaction p-value for age group = .85). The incidence of major bleeding was low and similar in the two age and treatment groups (interaction p value for age group = .35).
conclusionSymptomatic VTE and VTE-related death occur frequently in older patients with acute medical illness. The benefit/risk profile of rivaroxaban in patients ≥75 years of age appears consistent with that observed in the general population.
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