TheraRadar
Data updated: May 26, 2026

ZERBAXA (ceftolozane sulfate)

Infectious Disease Approved 2014-12-19

ZERBAXA is indicated for the treatment of Complicated Intra-abdominal Infections; Complicated Urinary Tract Infections; Pyelonephritis; Hospital-acquired Bacterial Pneumonia; Ventilator-associated Bacterial Pneumonia.

Source: FDA Label • CUBIST PHARMS LLC

How ZERBAXA Works

Ceftolozane is a cephalosporin that exerts bactericidal activity by binding to important penicillin-binding proteins (PBPs), resulting in the inhibition of bacterial cell wall synthesis and subsequent cell death. Tazobactam is a beta-lactamase inhibitor that irreversibly binds to some beta-lactamases (such as certain molecular class A and C enzymes), protecting ceftolozane from hydrolysis and extending its activity against bacteria that produce these resistance enzymes.

4
Indications
--
Phase 3 Trials
3
Priority Reviews
11
Years on Market

Details

Status
Prescription
First Approved
2014-12-19
Patent Cliff
2035

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Routes
INTRAVENOUS
Dosage Forms
POWDER

Companies

Active Ingredient: CEFTOLOZANE SULFATE , TAZOBACTAM SODIUM

ZERBAXA Approval History

2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
10 FDA actions from 2014 to 2026 · 3 indication expansions
May 2026 SUPPL Priority
Efficacy
Apr 2022 SUPPL
Efficacy
Dec 2019 SUPPL
Label · Labeling

What ZERBAXA Treats

5 indications

ZERBAXA is approved for 5 conditions since its original approval in 2014. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Complicated Intra-abdominal Infections
  • Complicated Urinary Tract Infections
  • Pyelonephritis
  • Hospital-acquired Bacterial Pneumonia
  • Ventilator-associated Bacterial Pneumonia
Source: FDA Label

ZERBAXA Competitive Set

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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.

Drugs Similar to ZERBAXA

3 of 17

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

AVYCAZ
AVIBACTAM SODIUM
5 shared
AbbVie
Shared indications:
Complicated Intra-abdominal InfectionsComplicated Urinary Tract InfectionsPyelonephritis +2 more
RECARBRIO
CILASTATIN SODIUM
3 shared
Merck
Shared indications:
Hospital-Acquired Bacterial PneumoniaVentilator-Associated Bacterial PneumoniaPyelonephritis
AVELOX
MOXIFLOXACIN HYDROCHLORIDE
1 shared
Bayer
Shared indications:
Complicated Intra-Abdominal Infections
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Active Pipeline

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Key Completed Trials

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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.

ZERBAXA FDA Label Details

Indications & Usage

FDA Label (PDF)

ZERBAXA is indicated for the treatment of Complicated Intra-abdominal Infections; Complicated Urinary Tract Infections; Pyelonephritis; Hospital-acquired Bacterial Pneumonia; Ventilator-associated Bacterial Pneumonia.

View full patent landscape →
12 OB patents · 7 families · 141 international docs across 34 countries

ZERBAXA Patents & Exclusivity

Latest Patent: Aug 2035

Patents (12 active)

US10125149 Expires Aug 14, 2035
US10376496 Expires Sep 9, 2034
US10933053 Expires Sep 9, 2034
US8906898 Expires May 28, 2034
US8968753 Expires Mar 14, 2034
US10420841 Expires Mar 14, 2034
US11278622 Expires Mar 14, 2034
US9872906 Expires Mar 14, 2034
US9320740 Expires Mar 14, 2034
US9724353 Expires Sep 7, 2032
US10028963 Expires Sep 7, 2032
US7129232 Expires May 15, 2028
Source: FDA Orange Book

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Revenue Insights

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Patent Timeline

  • Cliff: 2035
  • 26 active patents

Trial Analysis

  • Clinical trial tracking
  • Development stage analysis

Competitive Landscape

  • 17 similar drugs
  • Same target/indication analysis
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Data Sources

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