TheraRadar
Data updated: May 26, 2026

FONDAPARINUX SODIUM

Genetically Validated
Cardiovascular Approved 2011-07-11

Fondaparinux sodium is an anticoagulant used to prevent deep vein thrombosis in patients undergoing major surgeries, such as hip replacements, knee replacements, and abdominal procedures. It also treats acute deep vein thrombosis and pulmonary embolisms when used in combination with warfarin. This medication helps reduce the risk of blood clots that could lead to a pulmonary embolism, particularly in patients recovering from hip fracture surgery.

Source: FDA Label • HENGRUI PHARMA

How FONDAPARINUX SODIUM Works

This medication works by selectively binding to antithrombin III, which boosts the body's natural ability to neutralize Factor Xa by about 300 times. This process interrupts the blood coagulation cascade, preventing the formation of thrombin and the development of blood clots without impacting platelet function.

Source: FDA Label
6
Indications
--
Phase 3 Trials
14
Years on Market

Details

Status
Prescription
First Approved
2011-07-11
Routes
SUBCUTANEOUS
Dosage Forms
SOLUTION

FONDAPARINUX SODIUM Approval History

2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
33 FDA actions from 2011 to 2024
Dec 2024 ORIGINAL
Update
Aug 2024 ORIGINAL
Update
Sep 2023 SUPPL
Label · Labeling

What FONDAPARINUX SODIUM Treats

2 indications

FONDAPARINUX SODIUM is approved for 2 conditions since its original approval in 2011. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Deep Vein Thrombosis
  • Pulmonary Embolism
Source: FDA Label

FONDAPARINUX SODIUM Boxed Warning

SPINAL/EPIDURAL HEMATOMAS Epidural or spinal hematomas may occur in patients who are anticoagulated with low molecular weight heparins (LMWH), heparinoids, or fondaparinux sodium and are receiving neuraxial anesthesia or undergoing spinal puncture. These hematomas may result in long-term or permanent paralysis. Consider these risks when scheduling patients for spinal procedures. Factors that can increase the risk of developing epidural or spinal hematomas in these patients include: use of indwel...

FONDAPARINUX SODIUM Target & Pathway

Pro

Target

FACTOR XA (Coagulation Factor Xa) Coagulation Factor

A key enzyme in the blood clotting cascade that converts prothrombin to thrombin. Inhibiting Factor Xa prevents clot formation, reducing risk of stroke in atrial fibrillation and treating/preventing venous thromboembolism.

FONDAPARINUX SODIUM Competitive Set

Pro

Three rings of competition based on shared molecular targets and treated indications.

MoA expansion candidates

3

Same target(s), different indications — where else is this mechanism being explored?

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Filters applied: drops same-active-ingredient (505(b)(2) reformulations), route-mismatch (topical vs systemic), and cross-therapeutic-area matches in same-indication rings.

What's emerging in FONDAPARINUX SODIUM's indications

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Phase 3 candidates targeting molecules with no FDA-approved drug, in indications FONDAPARINUX SODIUM treats. First-in-class if their pivotal trials read out positive.

Drugs Similar to FONDAPARINUX SODIUM

3 of 20

FDA-approved drugs for similar conditions. Compare mechanisms and indications to understand treatment alternatives.

ARIXTRA
FONDAPARINUX SODIUM
2 shared
Viatris
Shared indications:
Deep Vein ThrombosisPulmonary Embolism
DABIGATRAN ETEXILATE MESYLATE
DABIGATRAN ETEXILATE MESYLATE
2 shared
BRECKENRIDGE
Shared indications:
Deep Vein ThrombosisPulmonary Embolism
ELIQUIS
APIXABAN
2 shared
Bristol-Myers Squibb
Shared indications:
Deep Vein ThrombosisPulmonary Embolism
📋

Clinical Trial Registry

4 trials
Trial Sponsor ID Phase Status Title
NCT06710184 FOXY DAN-FOXY 2024-517229-18-00 Ph 4 recruiting Treatment With Aspirin Alone Versus Aspirin in Combination With Fondaparinux Before Early Coronary Assessment in Patients With Non-ST-Elevation Myocardial Infarction
NCT05001776 05-06/21 Ph 4 completed Endovenous Laser Ablation in Acute Thrombophlebitis of the Varicose Great Saphenous Vein
NCT00911157 results posted 111436 Ph 3 completed The Treatment of Acute Deep Vein Thrombosis (DVT) of GSK576428 (Fondaparinux Sodium) in Japanese Patients
NCT00843492 FONDACAST results posted 109350 Ph 3 completed A Study to Evaluate the Efficacy and Safety of Fondaparinux for the Prevention of Venous Blood Clots in Patients With a Plaster Cast or Other Type of Immobilization for a Below-knee Injury Not Needing Surgery
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Active Pipeline

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Ongoing clinical trials by development phase

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Key Completed Trials

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Completed studies with published results, ranked by significance

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

FONDAPARINUX SODIUM FDA Label Details

Indications & Usage

FONDAPARINUX SODIUM is indicated for the treatment of Deep Vein Thrombosis; Pulmonary Embolism.

⚠️ BOXED WARNING

WARNING: SPINAL/EPIDURAL HEMATOMAS Epidural or spinal hematomas may occur in patients who are anticoagulated with low molecular weight heparins (LMWH), heparinoids, or fondaparinux sodium and are receiving neuraxial anesthesia or undergoing spinal puncture. These hematomas may result in long-term or...

Looking for the branded version?

ARIXTRA

Full clinical data, patents, trials, and competitive landscape for fondaparinux sodium.

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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.