Evidence map›Paper›PMID 40879867›Full record

SynthesisJournal of thrombosis and thrombolysis2026

Efficacy and safety of reduced-dose versus full-dose DOACs in extended treatment of VTE: A systematic review and meta-analysis.

Abdur Rafay Bilal, Shahood Ahmed Umar, S M Washaqul Arfin, Abdur Raheem Bilal, Maryam Sajid, Hateem Gaba, Shaheer Qureshi, Muhammad Haris Inam, Saad Ahmed Waqas

Abstract readSystematic ReviewMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in Journal of thrombosis and thrombolysis, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Observational
  2. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Abdur Rafay BilalDepartment of Medicine, Ziauddin Medical College, Karachi, Pakistan. abdurrafay760@gmail.com.
Shahood Ahmed UmarDepartment of Medicine, Ziauddin Medical College, Karachi, Pakistan.
S M Washaqul ArfinDepartment of Medicine, Ziauddin Medical College, Karachi, Pakistan.
Abdur Raheem BilalDepartment of Medicine, Ziauddin Medical College, Karachi, Pakistan.
Maryam SajidDepartment of Medicine, Dow University of Health Sciences, Karachi, 74200, Pakistan.
Hateem GabaDepartment of Medicine, Ziauddin Medical College, Karachi, Pakistan.
Shaheer QureshiDepartment of Medicine, Dow University of Health Sciences, Karachi, 74200, Pakistan.
Muhammad Haris InamDepartment of Medicine, Ziauddin Medical College, Karachi, Pakistan.
Saad Ahmed WaqasDepartment of Medicine, Dow University of Health Sciences, Karachi, 74200, Pakistan. ahsaad404@gmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Extended anticoagulation is recommended for venous thromboembolism (VTE) patients at high recurrence risk. However, the optimal long-term dosing strategy for direct oral anticoagulants (DOACs) remains uncertain. This meta-analysis compares the efficacy and safety of reduced-dose versus full-dose DOACs during extended-phase VTE treatment. We conducted a systematic review and meta-analysis of randomized controlled trials (RCTs) comparing reduced-dose (apixaban 2.5 mg BID or rivaroxaban 10 mg QD) and full-dose (apixaban 5 mg BID or rivaroxaban 20 mg QD) DOACs. Searches were performed in PubMed, Cochrane CENTRAL, Embase and Scopus till June 10, 2025. Outcomes included recurrent VTE, major bleeding, clinically relevant non-major bleeding (CRNMB), and all-cause mortality. Risk ratios (RRs) were pooled using random-effects models. Five RCTs comprising 8,781 patients were analyzed. Reduced-dose DOACs significantly lowered major bleeding risk (RR: 0.62; 95% CI: 0.42-0.92; p = 0.02; I² = 12%) and CRNMB (RR: 0.75; 95% CI: 0.63-0.88; p = 0.0006; I² = 0%) compared to full-dose DOACs. No significant differences were observed between the groups in recurrent VTE (RR: 0.94; 95% CI: 0.68-1.29; p = 0.70; I² = 0%) or all-cause mortality (RR: 0.86; 95% CI: 0.63-1.17; p = 0.35; I² = 42%). No significant differences across outcomes were observed between cancer-associated and general VTE populations. Reduced-dose DOACs significantly lower bleeding risk without compromising efficacy in preventing recurrent VTE. These findings support the preferential use of reduced-dose DOACs as a safer and effective option for extended anticoagulation, especially in patients at elevated bleeding risk.

Indexed as

AnticoagulantsFactor Xa InhibitorsVenous ThromboembolismAdministration, OralHemorrhageHumansPyrazolesPyridonesRandomized Controlled Trials as TopicRecurrenceRivaroxabanTreatment OutcomeAnticoagulantsapixabanFactor Xa InhibitorsPyrazolesPyridonesRivaroxabanBleeding riskDirect oral anticoagulantsExtended anticoagulationRecurrent VTEVenous thromboembolism

Identifiers

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.