CI

At a glance

ClinicalIndex Comparison Record
Phase 2Completed· 82 enrolled
Drug / intervention
Apixaban 2.5 MG Oral Tablet +1 moredrug
Likely dose
Apixaban 2.5 MG Oral Tabletfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04504318
NCT04504318Phase 2Completed

A Randomized Controlled Trial Comparing Apixaban Versus Enoxaparin Following Microsurgical Breast Reconstruction

Stanford University·interventional·Posted Aug 7, 2020·Updated Jun 22, 2025

In Brief

A Phase 2 clinical trial evaluating Apixaban 2.5 MG Oral Tablet and Enoxaparin 40Mg/0.4mL Prefilled Syringe for Venous Thromboembolism. Completed, enrolled 82 participants across 1 site.

Detailed Summary

Subcutaneous enoxaparin is currently the gold standard for VTE chemoprophylaxis. However, the efficacy of chemoprophylaxis with subcutaneous enoxaparin is affected by patient-level factors, thus, resulting in VTE events despite guideline-compliant prophylaxis. A population at particular risk is the growing number of patients who undergo autologous breast reconstruction. Direct oral anticoagulants (DOAC) might be a less invasive, yet, more efficacious mode of chemoprophylaxis in this patient population. Hence, the proposed work has the potential to cause a paradigm shift in chemoprophylaxis guidelines in a large population of patients undergoing plastic surgery.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesUnited States
Collaborators--

Timeline

Phase 2CompletedFinished
202120222023202420252026
First PostedAug 7, 2020
Enrollment StartAug 12, 2020
Primary CompletionJun 19, 2024
TodayJul 2, 2026
Enrollment to primary: 3.9 yearsPosted 5.9 years ago

Interventions

Apixaban 2.5 MG Oral Tabletdrug

Patients will be assigned to the respective study groups postoperatively upon arrival in the post-anesthesia care unit. Hence, surgeons are blinded at the time of surgery as to study group assignment. Chemoprophylaxis will continue for the duration of the hospitalization.

Enoxaparin 40Mg/0.4mL Prefilled Syringedrug

Patients will be assigned to the respective study groups postoperatively upon arrival in the post-anesthesia care unit. Hence, surgeons are blinded at the time of surgery as to study group assignment. Chemoprophylaxis will continue for the duration of the hospitalization.