TheraRadar

Pharma Intelligence, Simplified

Data updated: Mar 10, 2026

TEMBEXA

BRINCIDOFOVIR
Immunology Approved 2021-06-04
1
Indication
--
Phase 3 Trials
1
Priority Reviews
4
Years on Market

Details

Status
Prescription
First Approved
2021-06-04
Routes
ORAL
Dosage Forms
SUSPENSION, TABLET

Companies

Active Ingredient: BRINCIDOFOVIR

TEMBEXA Approval History

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What TEMBEXA Treats

1 indications

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

  • Smallpox
Source: FDA Label

TEMBEXA Boxed Warning

INCREASED RISK FOR MORTALITY WHEN USED FOR LONGER DURATION An increased incidence of mortality was seen in TEMBEXA-treated subjects compared to placebo-treated subjects in a 24-week clinical trial when TEMBEXA was evaluated in another disease [see Warnings and Precautions ( 5.1 )] . WARNING: INCREASED RISK FOR MORTALITY WHEN USED FOR LONGER DURATION See full prescribing information for complete boxed warning. An increased incidence of mortality was seen in TEMBEXA-treated subjects compared to pl...

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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.

TEMBEXA FDA Label Details

Pro

Indications & Usage

FDA Label (PDF)

TEMBEXA is an orthopoxvirus nucleotide analog DNA polymerase inhibitor and is indicated for the treatment of human smallpox disease in adult and pediatric patients, including neonates. Limitations of Use: โ€ข TEMBEXA is not indicated for the treatment of diseases other than human smallpox disease. โ€ข The effectiveness of TEMBEXA for treatment of smallpox disease has not been determined in humans because adequate and well-controlled field trials have not been feasible, and inducing smallpox disease in humans to study the drugโ€™s efficacy is not ethical. โ€ข TEMBEXA efficacy may be reduced in immunoco...

โš ๏ธ BOXED WARNING

WARNING: INCREASED RISK FOR MORTALITY WHEN USED FOR LONGER DURATION An increased incidence of mortality was seen in TEMBEXA-treated subjects compared to placebo-treated subjects in a 24-week clinical trial when TEMBEXA was evaluated in another disease [see Warnings and Precautions ( 5.1 )] . WARNING...

TEMBEXA Patents & Exclusivity

Latest Patent: Oct 2034
Exclusivity: Jun 2028

Patents (6 active)

US10112909 Expires Oct 10, 2034
US10487061 Expires Oct 10, 2034
US8962829 Expires Oct 10, 2034
US9371344 Expires Oct 10, 2034
US9303051 Expires Aug 31, 2031

Exclusivity

ODE-354 Until Jun 2028
ODE-354 Until Jun 2028
Source: FDA Orange Book

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Data Sources

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