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Pharma Intelligence, Simplified

Data updated: Mar 10, 2026

ZINPLAVA

BEZLOTOXUMAB
Infectious Disease Approved 2016-10-21

ZINPLAVA is a human monoclonal antibody indicated to reduce the recurrence of Clostridioides difficile infection (CDI) in adult and pediatric patients aged one year and older. It is specifically for patients who are currently receiving antibacterial drug treatment for CDI and are at a high risk for the infection to return. The drug is not an antibacterial agent and is not indicated for the treatment of an active CDI. Consequently, it must be used only in conjunction with antibacterial therapy.

Source: FDA Label • Merck

How ZINPLAVA Works

ZINPLAVA is a human monoclonal antibody that targets and binds to Clostridioides difficile toxin B. By binding to this specific toxin, the drug neutralizes its harmful biological effects. This action helps to prevent the recurrence of the infection in patients already undergoing antibacterial treatment. It does not directly target the bacteria itself, but rather the toxins produced by the pathogen.

Source: FDA Label
2
Indications
--
Phase 3 Trials
2
Priority Reviews
9
Years on Market

Details

Status
Prescription
First Approved
2016-10-21
Routes
INJECTION
Dosage Forms
INJECTABLE

Companies

Active Ingredient: BEZLOTOXUMAB

ZINPLAVA Approval History

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What ZINPLAVA Treats

1 indications

ZINPLAVA is approved for 1 conditions since its original approval in 2016. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Clostridioides Difficile Infection
Source: FDA Label
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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.

ZINPLAVA FDA Label Details

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Indications & Usage

FDA Label (PDF)

ZINPLAVA™ is indicated to reduce recurrence of Clostridioides difficile infection (CDI) in adults and pediatric patients 1 year of age and older who are receiving antibacterial drug treatment for CDI and are at a high risk for CDI recurrence. ZINPLAVA is a human monoclonal antibody that binds to Clostridioides difficile toxin B, indicated to reduce recurrence of Clostridioides difficile infection (CDI) in adults and pediatric patients 1 year of age and older who are receiving antibacterial drug treatment for CDI and are at a high risk for CDI recurrence. Limitation of Use: ZINPLAVA is not indi...

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Data Sources

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