NCT05083455

Brief Summary

Investigators are building an empirical evidence base for real world data through large-scale replication of randomized controlled trials. The investigators' goal is to understand for what types of clinical questions real world data analyses can be conducted with confidence and how to implement such studies.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
89,215

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Sep 2020

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 22, 2020

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 21, 2021

Completed
1 day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 22, 2021

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

September 20, 2021

Completed
29 days until next milestone

First Posted

Study publicly available on registry

October 19, 2021

Completed
Last Updated

July 27, 2023

Status Verified

July 1, 2023

Enrollment Period

10 months

First QC Date

September 20, 2021

Last Update Submit

July 25, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Relative hazard of any deep vein thrombosis, non-fatal pulmonary embolism, or death from any cause

    Claims-based algorithm: relative hazard of any deep vein thrombosis, non-fatal pulmonary embolism, or death from any cause.

    Through study completion or censoring, up to 36 days

Secondary Outcomes (1)

  • Relative hazard of major bleeding

    Through study completion or censoring, up to 36 days

Study Arms (2)

Enoxaparin

Reference group

Drug: Enoxaparin

Rivaroxaban

Exposure group

Drug: Rivaroxaban

Interventions

Any rivaroxaban dispensing claim is used as the exposure group

Also known as: Xarelto
Rivaroxaban

Any enoxaparin dispensing claim is used as the reference group

Enoxaparin

Eligibility Criteria

Age18 Years - 120 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

This study will involve a new user, parallel group, propensity score-matched, retrospective cohort study design comparing rivaroxaban to enoxaparin users. The patients will be required to have continuous enrollment during a baseline period of 180 days before initiation of rivaroxaban or enoxaparin (index date). We will restrict the analyses to patients who underwent a total hip arthroplasty.

You may qualify if:

  • At least 18 years of age
  • Scheduled to undergo elective total hip arthroplasty

You may not qualify if:

  • Scheduled to undergo staged, bilateral hip arthroplasty \[Day -30, Day 0\]
  • Pregnany or breastfeeding \[Day -180, Day 0\]
  • Had active bleeding or high risk of bleeding \[Day -180, Day 0\]
  • Had conditions preventing bilateral venography \[Day -30, Day 0\]
  • Congestive heart failure \[Day -180, Day 0\]
  • Pulmonary hypertension \[Day -180, Day 0\]
  • Edema of legs \[Day -180, Day 0\]
  • Substantial liver disease \[Day -180, Day 0\]
  • Severe renal impairment (creatinine clearance \<30 ml per minute) \[Day -180, Day 0\]
  • Concomitant use of protease inhibitors for the treatment of HIV \[Day -180, Day 0\]

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Brigham and Women's Hospital

Boston, Massachusetts, 02120, United States

Location

MeSH Terms

Conditions

Venous ThrombosisPulmonary Embolism

Interventions

RivaroxabanEnoxaparin

Condition Hierarchy (Ancestors)

ThrombosisEmbolism and ThrombosisVascular DiseasesCardiovascular DiseasesLung DiseasesRespiratory Tract DiseasesEmbolism

Intervention Hierarchy (Ancestors)

ThiophenesSulfur CompoundsOrganic ChemicalsMorpholinesOxazinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsHeparin, Low-Molecular-WeightHeparinGlycosaminoglycansPolysaccharidesCarbohydrates

Study Officials

  • Shirley Wang, PhD, ScM

    Brigham and Women's Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

September 20, 2021

First Posted

October 19, 2021

Study Start

September 22, 2020

Primary Completion

July 21, 2021

Study Completion

July 22, 2021

Last Updated

July 27, 2023

Record last verified: 2023-07

Locations