Evidence map›Paper›PMID 26627879›Full record

Trial reportJournal of the American Heart Association2015

Apixaban Reduces Hospitalizations in Patients With Venous Thromboembolism: An Analysis of the Apixaban for the Initial Management of Pulmonary Embolism and Deep-Vein Thrombosis as First-Line Therapy (AMPLIFY) Trial.

Xianchen Liu, Margot Johnson, Jack Mardekian, Hemant Phatak, John Thompson, Alexander T Cohen

Registry-linked trialAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Journal of the American Heart Association, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00643201 (A Safety and Efficacy Trial Evaluating the Use of Apixaban in the Treatment of Symptomatic Deep Vein Thrombosis and Pulmonary Embolism), which is not on this map. Cited by 15 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 2 pooled it
–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.

NCT00643201 phase3completednot on this map

A Safety and Efficacy Trial Evaluating the Use of Apixaban in the Treatment of Symptomatic Deep Vein Thrombosis and Pulmonary Embolism

TypeinterventionalSponsorBristol-Myers SquibbRan2008 to 2013Enrolled5,614ConditionsVenous ThrombosisArmsEnoxaparin, warfarin, Placebo for apixaban, Placebo for enoxaparin, Placebo for warfarin
3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Apixaban or Rivaroxaban Versus Warfarin for Treatment of Submassive Pulmonary Embolism After Catheter-Directed Thrombolysis.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis · 2018
    Trial
  4. Review
  5. Review
  6. Article
  7. Comparing Venous Thromboembolism Prophylactic Agents After Hip Fracture Surgery: A National Database Study.Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2022
    Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Article
  13. Hospital Resource Utilization and Costs Associated With Warfarin Versus Apixaban Treatment Among Patients Hospitalized for Venous Thromboembolism in the United States.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis · 2018
    Article
  14. Article
  15. 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

6 authors.

Xianchen LiuPfizer Inc, New York, NY (X.L.) University of Tennessee College of Pharmacy, Memphis, TN (X.L.).
Margot JohnsonPfizer Inc, Groton, CT (M.J., J.M., J.T.).
Jack MardekianPfizer Inc, Groton, CT (M.J., J.M., J.T.).
Hemant PhatakBristol-Myers Squibb Inc, Princeton, NJ (H.P.).
John ThompsonPfizer Inc, Groton, CT (M.J., J.M., J.T.).
Alexander T CohenGuy's and St Thomas' Hospitals, London, UK (A.T.C.).

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn the Apixaban for the Initial Management of Pulmonary Embolism and Deep-Vein Thrombosis as First-Line Therapy (AMPLIFY) trial, apixaban was noninferior to enoxaparin/warfarin in preventing recurrent symptomatic venous thromboembolism (VTE) or venous thromboembolism-related death, with significantly less bleeding. This analysis evaluated the effects of apixaban versus enoxaparin/warfarin on all-cause hospitalizations during AMPLIFY. METHODS AND

resultsOf the 5365 patients included, 2676 received apixaban and 2689 received enoxaparin/warfarin. All-cause hospitalizations during the treatment period after the index event were captured using dedicated case report forms. Outcomes included all-cause hospitalizations and time from randomization to first hospitalization. Patients were censored at death, loss to follow-up, or end of study, whichever came first. Treatment effects were assessed using Cox proportional hazards regression models. During the treatment period after the index event, 343 patients were hospitalized at least once: 153 (5.72%) in the apixaban group and 190 (7.07%) in the enoxaparin/warfarin group. Compared with enoxaparin/warfarin, apixaban significantly reduced all-cause hospitalizations (hazard ratio 0.804, 95% CI=0.650-0.995, P=0.045). All-cause hospitalization rates within the first 30 days after the index event were 2.28% and 3.35% in the apixaban and enoxaparin/warfarin groups, respectively (hazard ratio 0.676, 95% CI=0.488-0.935, P=0.018). For all patients, the average per-patient estimated mean length of hospital stay was also shorter with apixaban than enoxaparin/warfarin (0.57 days versus 1.01 days, P<0.0001).

conclusionsApixaban significantly reduced all-cause hospitalizations versus enoxaparin/warfarin, and shortened the length of hospital stay in patients with acute venous thromboembolism. CLINICAL

trial registrationURL: https://Clinicaltrials.Gov/. Unique identifier: NCT00643201.

Indexed as

AgedAnticoagulantsDouble-Blind MethodDrug Therapy, CombinationEnoxaparinFactor Xa InhibitorsFemaleHospitalizationHumansLength of StayMaleMiddle AgedProportional Hazards ModelsPulmonary EmbolismPyrazolesPyridonesAnticoagulantsapixabanEnoxaparinFactor Xa InhibitorsPyrazolesPyridonesWarfarinanticoagulantshemorrhagemortalitypreventionthrombosis

Identifiers

PMID26627879
PMCPMC4845271

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Registered trials

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.