TheraRadar
Data updated: May 26, 2026

EMFLAZA (deflazacort)

Corticosteroid Hormone Receptor Agonists
First-in-Class Orphan Drug Priority Review Fast Track
Rare Disease Approved 2017-02-09

Emflaza is a corticosteroid used for patients with Duchenne muscular dystrophy (DMD) who are two years of age or older. This medication helps patients with the physical challenges of DMD by utilizing its anti-inflammatory properties. It is prescribed to manage this specific type of muscular dystrophy in both pediatric and adult populations.

Source: FDA Label • PTC THERAP • Corticosteroid

How EMFLAZA Works

This medication is a prodrug that converts into an active metabolite, which then binds to glucocorticoid receptors. This process works by triggering anti-inflammatory and immunosuppressive responses within the body. Although the exact way these actions improve Duchenne muscular dystrophy is unknown, the drug's primary activity stems from these receptor interactions.

2
Indications
--
Phase 3 Trials
2
Priority Reviews
9
Years on Market

Details

Status
Prescription
First Approved
2017-02-09
Patent Cliff
2026

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Routes
ORAL
Dosage Forms
TABLET, SUSPENSION

Companies

Active Ingredient: DEFLAZACORT

EMFLAZA Approval History

2018
2019
2020
2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
25 FDA actions from 2017 to 2024 · 1 indication expansions
Jun 2024 SUPPL
Label · Labeling
Jun 2021 SUPPL
Label · Labeling
Jul 2020 SUPPL
Label · Labeling

What EMFLAZA Treats

1 indications

EMFLAZA is approved for 1 conditions since its original approval in 2017. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Duchenne Muscular Dystrophy
Source: FDA Label

EMFLAZA 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.

What's emerging in EMFLAZA's indications

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Phase 3 candidates targeting molecules with no FDA-approved drug, in indications EMFLAZA treats. First-in-class if their pivotal trials read out positive.

Drugs Similar to EMFLAZA

3 of 9

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

AGAMREE
VAMOROLONE
1 shared
CATALYST PHARMS
Shared indications:
Duchenne Muscular Dystrophy
AMONDYS 45
CASIMERSEN
1 shared
Sarepta Therapeutics
Shared indications:
Duchenne Muscular Dystrophy
DEFLAZACORT
DEFLAZACORT
1 shared
ZYDUS LIFESCIENCES
Shared indications:
Duchenne Muscular Dystrophy
📋

Clinical Trial Registry

9 trials
Trial Sponsor ID Phase Status Title
NCT04227483 RA/2020/001 Ph 2, Ph 3 active not recruiting Deflazacort Vs. Prednisolone in Acute-stage ABPA
NCT01603407 FOR-DMD results posted U01NS061799 2010-023744-33, U01NS061799 Ph 3 completed Finding the Optimum Regimen for Duchenne Muscular Dystrophy
NCT03783923 results posted PTCEMF-GD-004 Ph 3 terminated A Study of Deflazacort (Emflaza®) in Participants With Limb-Girdle Muscular Dystrophy 2I (LGMD2I)
NCT03642145 PTCEMF PTCEMF-GD-003 Ph 3 withdrawn A Study of Deflazacort (Emflaza®) in Participants With Duchenne Muscular Dystrophy (DMD)
NCT02295748 MP-104-CL-022OLE Ph 1 completed An Open-Label, Long-Term Extension Study to Evaluate the Safety and Tolerability Deflazacort
NCT02485431 MP-104-CL-026 Ph 1 completed Food Effect and Bioavailability of Deflazacort Formulations in Healthy Volunteers
NCT02251600 MP-104-CL-005 Ph 1 completed A Pharmacokinetic Study of Oral Deflazacort in Children and Adolescent Subjects With Duchenne Muscular Dystrophy
NCT02286622 MP-104-CL-024 Ph 1 completed A Single Dose Evaluation of the Effects of Renal Impairment on Deflazacort Pharmacokinetics
NCT02286609 MP-104-CL-023 Ph 1 completed A Single Dose Evaluation of the Effects of Moderate Hepatic Impairment on Deflazacort Pharmacokinetics
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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.

EMFLAZA FDA Label Details

Indications & Usage

FDA Label (PDF)

EMFLAZA is indicated for the treatment of Duchenne Muscular Dystrophy.

EMFLAZA Patents & Exclusivity

Exclusivity: Jun 2026

Exclusivity

ODE-252 Until Jun 2026
ODE-252 Until Jun 2026
ODE-252 Until Jun 2026
ODE-252 Until Jun 2026
ODE-252 Until Jun 2026
ODE-252 Until Jun 2026
ODE-252 Until Jun 2026
ODE-252 Until Jun 2026
ODE-252 Until Jun 2026
ODE-252 Until Jun 2026
ODE-252 Until Jun 2026
ODE-252 Until Jun 2026
ODE-252 Until Jun 2026
ODE-252 Until Jun 2026
ODE-252 Until Jun 2026
ODE-252 Until Jun 2026
ODE-252 Until Jun 2026
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.