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Data updated: Jun 28, 2026

KIMYRSA (oritavancin diphosphate) · MELINTA THERAP

Infectious Disease Approved 2021-03-12

Kimyrsa (oritavancin) is a lipoglycopeptide antibacterial indicated for the treatment of adult patients with acute bacterial skin and skin structure infections (ABSSSI) caused by susceptible isolates of designated Gram-positive microorganisms. Its spectrum of activity includes *Staphylococcus aureus* (including methicillin-susceptible and methicillin-resistant/MRSA isolates), *Streptococcus pyogenes*, *Streptococcus agalactiae*, *Streptococcus dysgalactiae*, *Streptococcus anginosus* group (*S. anginosus*, *S. intermedius*, *S. constellatus*), and vancomycin-susceptible isolates of *Enterococcus faecalis*. To maintain effectiveness and reduce the development of drug-resistant bacteria, Kimyrsa should be reserved for infections proven or strongly suspected to be caused by susceptible bacteria.

How KIMYRSA Works

Oritavancin exerts bactericidal activity against susceptible Gram-positive bacteria through three distinct mechanisms of action: (1) inhibition of the transglycosylation (peptidoglycan synthesis) step of cell wall biosynthesis by binding to the stem peptide of peptidoglycan precursors; (2) inhibition of the transpeptidation (cross-linking) step of cell wall biosynthesis by binding to the peptide bridges of the cell wall; and (3) disruption of bacterial cell membrane integrity, leading to depolarization and permeabilization that causes rapid cell death.

1
Indication
--
Phase 3 Trials
5
Years on Market

Details

Status
Prescription
First Approved
2021-03-12
Patent Cliff
2035

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Routes
INTRAVENOUS
Dosage Forms
POWDER

Companies

Active Ingredient: ORITAVANCIN DIPHOSPHATE

KIMYRSA Approval History

2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
3 FDA actions from 2021 to 2025
Apr 2025 SUPPL
Label · Labeling
Jul 2021 SUPPL
Label · Labeling
Mar 2021 ORIGINAL
Update · Type 5 - New Formulation or New Manufacturer

What KIMYRSA Treats

1 indications

KIMYRSA is approved for 1 conditions since its original approval in 2021. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Acute Bacterial Skin and Skin Structure Infections
Source: FDA Label

KIMYRSA 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 KIMYRSA

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

BAXDELA
DELAFLOXACIN MEGLUMINE
1 shared
MELINTA
Shared indications:
Acute Bacterial Skin and Skin Structure Infections
CEFTAROLINE FOSAMIL
CEFTAROLINE FOSAMIL
1 shared
Apotex
Shared indications:
Acute Bacterial Skin and Skin Structure Infections
DALBAVANCIN HYDROCHLORIDE
DALBAVANCIN HYDROCHLORIDE
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Fresenius Kabi
Shared indications:
Acute Bacterial Skin and Skin Structure Infections
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Clinical Trial Registry

2 trials
Trial Sponsor ID Phase Status Title
NCT05599295 ML-ORI-201 2024-516385-10-00 Ph 2 completed Study to Evaluate the Safety of Intravenous Oritavancin for the Treatment of Children With Skin Infections
NCT03873987 results posted ML-ORI-102 Ph 1 completed Relative Exposure and Safety Study of Kimyrsa in ABSSSI Patients
🔬

Active Pipeline

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Trial Timeline

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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.

KIMYRSA FDA Label Details

Indications & Usage

FDA Label (PDF)

KIMYRSA is a lipoglycopeptide antibacterial drug indicated for the treatment of adult patients with acute bacterial skin and skin structure infections caused or suspected to be caused by susceptible isolates of designated Gram-positive microorganisms. To reduce the development of drug-resistant bacteria and maintain the effectiveness of KIMYRSA and other antibacterial drugs, KIMYRSA should be used only to treat or prevent infections that are proven or strongly suspected to be caused by bacteria. 1.1 Acute Bacterial Skin and Skin Structure Infections KIMYRSA ® is indicated for the treatment of ...

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4 OB patents · 3 families · 87 international docs across 21 countries

KIMYRSA Patents & Exclusivity

Latest Patent: Jul 2035

Patents (4 active)

US9649352 Expires Jul 16, 2035
US9682061 Expires Apr 26, 2030
US12514899 Expires Aug 29, 2029
US8420592 Expires Aug 29, 2029
Source: FDA Orange Book

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Patent Timeline

  • Cliff: 2035
  • 4 active patents

Trial Analysis

  • Clinical trial tracking
  • Development stage analysis

Competitive Landscape

  • 8 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.