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Context, anatomy, and key evidence

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thrombin inhibitor peptide

Bivalirudin

Published evidence · coverage incomplete
Anatomical contextAnatomy connections are not mapped yet.

No body region is highlighted until this profile has a supported anatomical connection. This does not mean the peptide has no biological effects.

Read published mechanism findings ↓

At a glance

What is it—and why does it matter?

Bivalirudin is described as a 20-residue peptide with thrombin-inhibitory activity. Bivalirudin directly inhibits thrombin. During bivalirudin encounters, thrombotic progression or new thrombosis occurred in 17.6% of encounters, and 18 encounters had both thrombosis and bleeding. As an anticoagulant, bivalirudin for injection is associated with an increased bleeding risk per warning statement.

Sources for this introduction: [1] [2] [3] [4]

This published profile is a reference in progress. Findings retain their source context; missing topics are marked below.

What is it?

A molecule, not a product name.

Identity

The active ingredient is bivalirudin in the trifluoroacetate salt form, characterized as a specific, reversible direct thrombin inhibitor and a synthetic peptide of 20 amino acids.

Source records
1
Regulatory records
1

Evidence boundary: Applies only to the source-defined population, formulation, dose, and assessment period.

Exact passages, locators, and provenance
  1. supports · Source-backed record
    Bivalirudin Injection contains bivalirudin trifluoroacetate, which is a specific and reversible direct thrombin inhibitor. Bivalirudin trifluoroacetate is a synthetic, 20 amino acid peptide salt

    These highlights do not include all the information needed to use BIVALIRUDIN INJECTION, safely and effectively. See full prescribing information for BIVALIRUDIN INJECTION.BIVALIRUDIN injection, for intravenous useInitial U.S. Approval: 2000 · 11 DESCRIPTION

    dailymed:91cf9d00-29e0-4357-a184-f70026c47edb:6d761b58f00d:6d761b58f00d

Identity

Bivalirudin is administered intravenously and inhibits thrombin directly.

Source records
2
Independent studies
1

Evidence boundary: Applies only to the source-defined population, formulation, dose, and assessment period.

Exact passages, locators, and provenance
  1. supports · Source-backed record
    Bivalirudin, an IV direct thrombin inhibitor,

    Safety of Bivalirudin Use in Critically Ill Children: A Single-Center Experience. · OBJECTIVES

    pubmed:42635486:019448016dfc:019448016dfc
  2. supports · Source-backed record
    Bivalirudin, an IV direct thrombin inhibitor

    Safety of Bivalirudin Use in Critically Ill Children: A Single-Center Experience. · OBJECTIVES

    pubmed:42635486:019448016dfc:019448016dfc

Identity

Bivalirudin is used as an anticoagulant and is described here as an alternative to heparin.

Source records
1
Independent studies
1

Evidence boundary: Applies only to the source-defined population, formulation, dose, and assessment period.

Exact passages, locators, and provenance
  1. supports · Source-backed record
    Bivalirudin is an alternative anticoagulant to heparin

    Assessment of Thrombin Generation in Pediatric Patients on Extracorporeal Life Support: Impact of Bivalirudin and Other Anticoagulants. · INTRODUCTION

    pubmed:42604760:c2ef06c7ad19:c2ef06c7ad19

Identity

Bivalirudin is described as a 20-residue peptide with thrombin-inhibitory activity.

Source records
1
Independent studies
1

Evidence boundary: Applies only to the source-defined population, formulation, dose, and assessment period.

Exact passages, locators, and provenance
  1. supports · Source-backed record
    Bivalirudin is a 20-amino-acid thrombin-inhibiting peptide

    Macromolecular design of a bivalirudin peptide-loaded Carbopol 940 hydrogel for local thrombin inhibition and prevention of neointimal hyperplasia. · Abstract

    pubmed:42385809:7ab2d93d58bc:7ab2d93d58bc

How does it work?

Target, response, and disposition.

Mechanism

The methods describe laboratory monitoring performed on specimens from pediatric ECLS patients receiving bivalirudin, including thrombin generation and coagulation assays.

Source records
1
Independent studies
1

Evidence boundary: Applies only to the source-defined population, formulation, dose, and assessment period.

Exact passages, locators, and provenance
  1. supports · Source-backed record
    TGA, aPTT, aPTT with hepzyme, dTT, INR were measured in 30 specimens from 12 pediatric ECLS patients anticoagulated with bivalirudin.

    Assessment of Thrombin Generation in Pediatric Patients on Extracorporeal Life Support: Impact of Bivalirudin and Other Anticoagulants. · METHODS

    pubmed:42604760:c2ef06c7ad19:c2ef06c7ad19

Mechanism

The source lists coagulation assays used to monitor bivalirudin’s anticoagulant effect, including aPTT and the more specific dTT.

Source records
1
Independent studies
1

Evidence boundary: Applies only to the source-defined population, formulation, dose, and assessment period.

Exact passages, locators, and provenance
  1. supports · Source-backed record
    Its activity is monitored using activated partial thromboplastin time (aPTT) and/or more specific tests such as plasma-diluted thrombin time (dTT).

    Assessment of Thrombin Generation in Pediatric Patients on Extracorporeal Life Support: Impact of Bivalirudin and Other Anticoagulants. · INTRODUCTION

    pubmed:42604760:c2ef06c7ad19:c2ef06c7ad19

Mechanism

Bivalirudin can inhibit thrombin without relying on antithrombin.

Source records
1
Independent studies
1

Evidence boundary: Applies only to the source-defined population, formulation, dose, and assessment period.

Exact passages, locators, and provenance
  1. supports · Source-backed record
    Bivalirudin, a direct thrombin inhibitor, inhibits thrombin without needing antithrombin.

    Bivalirudin as an Alternative to Heparin in Pediatric Cardiac Procedures: Evidence, Challenges, and Future Directions. · Abstract

    pubmed:42602128:5c3942bcf086:5c3942bcf086

Mechanism

Carbopol 940 is identified as a crosslinked polyacrylic acid whose properties (viscosity, pH-responsive swelling, and biocompatibility) motivated its selection as a macromolecular carrier.

Source records
1
Independent studies
1

Evidence boundary: Applies only to the source-defined population, formulation, dose, and assessment period.

Exact passages, locators, and provenance
  1. supports · Source-backed record
    Carbopol 940, a crosslinked polyacrylic acid, was selected for its high viscosity, pH-sensitive swelling, and established biocompatibility as a macromolecular carrier.

    Macromolecular design of a bivalirudin peptide-loaded Carbopol 940 hydrogel for local thrombin inhibition and prevention of neointimal hyperplasia. · Abstract

    pubmed:42385809:7ab2d93d58bc:7ab2d93d58bc

Mechanism

Bivalirudin directly inhibits thrombin.

Source records
1
Independent studies
1

Evidence boundary: Applies only to the source-defined population, formulation, dose, and assessment period.

Exact passages, locators, and provenance
  1. supports · Source-backed record
    Bivalirudin, a direct thrombin inhibitor, inhibits thrombin without needing antithrombin.

    Bivalirudin as an Alternative to Heparin in Pediatric Cardiac Procedures: Evidence, Challenges, and Future Directions. · Abstract

    pubmed:42602128:5c3942bcf086:5c3942bcf086

Pharmacokinetics

The elimination half-life reported for bivalirudin in PTCA patients with normal renal function is 25 minutes.

Reported result
25 minutes
Source records
1
Regulatory records
1

Evidence boundary: Applies only to the source-defined population, formulation, dose, and assessment period.

Exact passages, locators, and provenance
  1. supports · Source-backed record
    Bivalirudin has a half-life of 25 minutes in PTCA patients with normal renal function.

    These highlights do not include all the information needed to use BIVALIRUDIN FOR INJECTION safely and effectively. See full prescribing information for BIVALIRUDIN FOR INJECTION.BIVALIRUDIN for injection, for intravenous useInitial U.S. Approval: 2000 · 12.3 Pharmacokinetics

    dailymed:c20969cb-72d4-469b-9bd8-332250d896c3:50c91b7062fc:50c91b7062fc

Pharmacokinetics

In the studied PTCA population with normal renal function, elimination is characterized by a short half-life (25 minutes) and weight-normalized clearance (3.4 mL/min/kg).

Reported result
Half-life: 25 minutes; total body clearance: 3.4 mL/min/kg
Source records
1
Regulatory records
1

Evidence boundary: Applies only to the source-defined population, formulation, dose, and assessment period.

Exact passages, locators, and provenance
  1. supports · Source-backed record
    Bivalirudin has a half-life of 25 minutes in PTCA patients with normal renal function. The total body clearance of bivalirudin in PTCA patients with normal renal function is 3.4 mL/min/kg.

    These highlights do not include all the information needed to use BIVALIRUDIN INJECTION, safely and effectively. See full prescribing information for BIVALIRUDIN INJECTION.BIVALIRUDIN injection, for intravenous useInitial U.S. Approval: 2000 · 12.3 Pharmacokinetics

    dailymed:91cf9d00-29e0-4357-a184-f70026c47edb:6d761b58f00d:6d761b58f00d

What has been studied?

What the evidence says.

Comparative evidence

Unfractionated heparin is still the standard anticoagulant for pediatric cardiac procedures.

Source records
1
Independent studies
1

Evidence boundary: Applies only to the source-defined population, formulation, dose, and assessment period.

Exact passages, locators, and provenance
  1. supports · Source-backed record
    Unfractionated heparin remains the standard anticoagulant for pediatric cardiac procedures, but its drawbacks in children are hard to ignore.

    Bivalirudin as an Alternative to Heparin in Pediatric Cardiac Procedures: Evidence, Challenges, and Future Directions. · Abstract

    pubmed:42602128:5c3942bcf086:5c3942bcf086

Study findings

The most common reason for bivalirudin use was treatment of venous thrombosis (133 encounters, 51%).

Reported result
n = 133 (51%)
Source records
1
Independent studies
1

Evidence boundary: Applies only to the source-defined population, formulation, dose, and assessment period.

Exact passages, locators, and provenance
  1. supports · Source-backed record
    The most common indication was treatment of venous thrombosis (n = 133, 51%).

    Safety of Bivalirudin Use in Critically Ill Children: A Single-Center Experience. · MEASUREMENTS AND MAIN RESULTS

    pubmed:42635486:019448016dfc:019448016dfc

Study findings

During bivalirudin encounters, thrombotic progression or new thrombosis occurred in 17.6% of encounters, and 18 encounters had both thrombosis and bleeding.

Reported result
46/261 encounters (17.6%); 37/229 patients (16%); both events: 18/261 encounters
Source records
1
Independent studies
1

Evidence boundary: Applies only to the source-defined population, formulation, dose, and assessment period.

Exact passages, locators, and provenance
  1. supports · Source-backed record
    Thrombotic progression or development of new thrombi occurred in 46 of 261 (17.6%) encounters (37/229; 16% patients) with 18 of 261 experiencing both bleeding and thrombotic events.

    Safety of Bivalirudin Use in Critically Ill Children: A Single-Center Experience. · MEASUREMENTS AND MAIN RESULTS

    pubmed:42635486:019448016dfc:019448016dfc

Risks and interactions

Risks, organized for scanning.

Safety findings

As an anticoagulant, bivalirudin is associated with an increased risk of bleeding events.

Source records
1
Regulatory records
1

Evidence boundary: Applies only to the source-defined population, formulation, dose, and assessment period.

Exact passages, locators, and provenance
  1. supports · Source-backed record
    Bivalirudin increases the risk of bleeding

    These highlights do not include all the information needed to use BIVALIRUDIN INJECTION, safely and effectively. See full prescribing information for BIVALIRUDIN INJECTION.BIVALIRUDIN injection, for intravenous useInitial U.S. Approval: 2000 · 5.1 Bleeding Events

    dailymed:91cf9d00-29e0-4357-a184-f70026c47edb:6d761b58f00d:6d761b58f00d

Safety findings

As an anticoagulant, bivalirudin for injection is associated with an increased bleeding risk per warning statement.

Source records
1
Regulatory records
1

Evidence boundary: Applies only to the source-defined population, formulation, dose, and assessment period.

Exact passages, locators, and provenance
  1. supports · Source-backed record
    Bivalirudin for injection increases the risk of bleeding

    These highlights do not include all the information needed to use BIVALIRUDIN FOR INJECTION safely and effectively. See full prescribing information for BIVALIRUDIN FOR INJECTION.BIVALIRUDIN for injection, for intravenous useInitial U.S. Approval: 2000 · 5.1 Bleeding Events

    dailymed:c20969cb-72d4-469b-9bd8-332250d896c3:50c91b7062fc:50c91b7062fc

Products and regulatory status

Same ingredient. Different records.

Regulatory status

Bivalirudin Injection has an approved indication for anticoagulation during percutaneous coronary intervention, including in patients with heparin-induced thrombocytopenia or HIT with thrombosis syndrome.

Source records
1
Regulatory records
1

Evidence boundary: Applies only to the source-defined population, formulation, dose, and assessment period.

Exact passages, locators, and provenance
  1. supports · Source-backed record
    Bivalirudin Injection is indicated for use as an anticoagulant in patients undergoing percutaneous coronary intervention (PCI), including patients with heparin-induced thrombocytopenia and heparin-induced thrombocytopenia and thrombosis syndrome.

    These highlights do not include all the information needed to use BIVALIRUDIN INJECTION, safely and effectively. See full prescribing information for BIVALIRUDIN INJECTION.BIVALIRUDIN injection, for intravenous useInitial U.S. Approval: 2000 · 1 INDICATIONS AND USAGE

    dailymed:91cf9d00-29e0-4357-a184-f70026c47edb:6d761b58f00d:6d761b58f00d

Administration context

The practical clinical context.

Administration

The product is formulated as a sterile, ready-to-administer IV solution and is restricted to intravenous administration.

Source records
1
Regulatory records
1

Evidence boundary: Applies only to the source-defined population, formulation, dose, and assessment period.

Exact passages, locators, and provenance
  1. supports · Source-backed record
    Bivalirudin Injection is a ready-to-use sterile solution for intravenous use only.

    These highlights do not include all the information needed to use BIVALIRUDIN INJECTION, safely and effectively. See full prescribing information for BIVALIRUDIN INJECTION.BIVALIRUDIN injection, for intravenous useInitial U.S. Approval: 2000 · 2.3 Instructions for Administration

    dailymed:91cf9d00-29e0-4357-a184-f70026c47edb:6d761b58f00d:6d761b58f00d

Administration

The administration route and method are IV bolus plus continuous infusion, and preparation requires reconstitution and dilution.

Source records
1
Regulatory records
1

Evidence boundary: Applies only to the source-defined population, formulation, dose, and assessment period.

Exact passages, locators, and provenance
  1. supports · Source-backed record
    Bivalirudin for injection is intended for intravenous bolus injection and continuous infusion after reconstitution and dilution.

    These highlights do not include all the information needed to use BIVALIRUDIN FOR INJECTION safely and effectively. See full prescribing information for BIVALIRUDIN FOR INJECTION.BIVALIRUDIN for injection, for intravenous useInitial U.S. Approval: 2000 · 2.3 Instructions for Preparation and Administration

    dailymed:c20969cb-72d4-469b-9bd8-332250d896c3:50c91b7062fc:50c91b7062fc

Dose records

In severe renal impairment defined by Cockcroft-Gault creatinine clearance <30 mL/min, the labeled maintenance infusion rate is reduced.

Source records
1
Regulatory records
1

Evidence boundary: Applies only to the source-defined population, formulation, dose, and assessment period.

Exact passages, locators, and provenance
  1. supports · Source-backed record
    In patients with creatinine clearance less than 30 mL/min (by Cockcroft Gault equation), reduce the infusion rate to 1 mg/kg/h.

    These highlights do not include all the information needed to use BIVALIRUDIN INJECTION, safely and effectively. See full prescribing information for BIVALIRUDIN INJECTION.BIVALIRUDIN injection, for intravenous useInitial U.S. Approval: 2000 · 2.2 Dose Adjustment in Renal Impairment

    dailymed:91cf9d00-29e0-4357-a184-f70026c47edb:6d761b58f00d:6d761b58f00d

Dose records

The labeled regimen specifies a weight-based IV bolus followed by continuous IV infusion at a higher weight-normalized hourly rate for the procedural duration.

Source records
1
Regulatory records
1

Evidence boundary: Applies only to the source-defined population, formulation, dose, and assessment period.

Exact passages, locators, and provenance
  1. supports · Source-backed record
    The recommended dose of Bivalirudin Injection is an intravenous bolus dose of 0.75 mg/kg, followed immediately by a maintenance infusion of 1.75 mg/kg/h for the duration of the procedure.

    These highlights do not include all the information needed to use BIVALIRUDIN INJECTION, safely and effectively. See full prescribing information for BIVALIRUDIN INJECTION.BIVALIRUDIN injection, for intravenous useInitial U.S. Approval: 2000 · 2.1 Recommended Dosage

    dailymed:91cf9d00-29e0-4357-a184-f70026c47edb:6d761b58f00d:6d761b58f00d

Dose records

Dialysis-dependent patients require a substantially reduced bivalirudin infusion rate.

Source records
1
Regulatory records
1

Evidence boundary: Applies only to the source-defined population, formulation, dose, and assessment period.

Exact passages, locators, and provenance
  1. supports · Source-backed record
    In patients on hemodialysis, reduce the infusion rate to 0.25 mg/kg/h

    These highlights do not include all the information needed to use BIVALIRUDIN FOR INJECTION safely and effectively. See full prescribing information for BIVALIRUDIN FOR INJECTION.BIVALIRUDIN for injection, for intravenous useInitial U.S. Approval: 2000 · 2.2 Dose Adjustment in Renal Impairment

    dailymed:c20969cb-72d4-469b-9bd8-332250d896c3:50c91b7062fc:50c91b7062fc

Research status + gaps

What still needs better answers?

  • No publishable claim yet for: contraindication, interaction
  • 156 compiled claim(s) withheld by automated assurance: assurance_score_below_0.58 (83), assurance_score_below_0.72 (67), current_regulatory_source_required (31), extraction_ambiguity (109), extraction_confidence_not_high (4), high_risk_requires_regulatory_or_two_independent_sources (69), no_direct_support (148), proposal_not_staged (4)

These are the limits of this profile, not an exhaustive list of scientific uncertainties.

References + discovery

Open the records yourself.

  1. These highlights do not include all the information needed to use BIVALIRUDIN INJECTION, safely and effectively. See full prescribing information for BIVALIRUDIN INJECTION.BIVALIRUDIN injection, for intravenous useInitial U.S. Approval: 2000

    dailymed · published 2024-03-01 · retrieved 2026-09-04T19:11:37Z

  2. These highlights do not include all the information needed to use BIVALIRUDIN FOR INJECTION safely and effectively. See full prescribing information for BIVALIRUDIN FOR INJECTION.BIVALIRUDIN for injection, for intravenous useInitial U.S. Approval: 2000

    dailymed · published 2024-08-15 · retrieved 2026-09-04T19:11:33Z

  3. Macromolecular design of a bivalirudin peptide-loaded Carbopol 940 hydrogel for local thrombin inhibition and prevention of neointimal hyperplasia.

    pubmed · published 2026-09-01 · retrieved 2026-08-25T22:58:23Z

  4. Bivalirudin as an Alternative to Heparin in Pediatric Cardiac Procedures: Evidence, Challenges, and Future Directions.

    pubmed · published 2026-01-01 · retrieved 2026-08-25T22:58:23Z

  5. Assessment of Thrombin Generation in Pediatric Patients on Extracorporeal Life Support: Impact of Bivalirudin and Other Anticoagulants.

    pubmed · published 2026-08-16 · retrieved 2026-08-25T22:58:23Z

  6. Safety of Bivalirudin Use in Critically Ill Children: A Single-Center Experience.

    pubmed · published 2026-08-24 · retrieved 2026-08-25T22:58:23Z

Publication history and provenance

Version 5 · Automated assessment · 2026-09-04T19:11:37Z

88429eae9a5e053ce17ba89f43e4af78d1d47973b9ae5935288ef9aed36de285