Last reviewed 2026-05-30 · How we verify

Mebron (EPIRIZOLE)

Phase 2 active Small molecule ✓ Verified May 2026

Mebron (generic name: EPIRIZOLE) is a drug. It is currently in Phase 2 development.

Mebron works by binding to specific proteins or receptors in the body to produce a therapeutic effect.

Mebron is a small molecule with the synonyms DA-398, Epirizol, Epirizole, and Mebron.

Likelihood of approval

15.3% vs 15.3% industry baseline

If approved by FDA: likely 2031–2034

Steps remaining: Phase 3 → NDA/BLA submission

Confidence: Medium

Why this estimate

Baseline phase 2 → approval rate +15.3pp
Industry-wide phase 2 drugs reach approval ~15.3% of the time (BIO/Informa 2023 industry benchmark across all therapeutic areas).

Predicted approval windows by jurisdiction (conditional on FDA approval)

Regulator	Country	Likely year	Lag vs FDA
FDA	US	2031–2034	—
EMA	EU	2032–2035	+0.7 yr
MHRA	GB	2032–2035	+0.7 yr
Health Canada	CA	2032–2036	+0.9 yr
TGA	AU	2032–2036	+1.2 yr
PMDA	JP	2032–2036	+1.5 yr
NMPA	CN	2033–2037	+2.3 yr
MFDS	KR	2032–2036	+1.4 yr
CDSCO	IN	2032–2037	+1.8 yr
ANVISA	BR	2033–2037	+2.3 yr

Hover any row for the lag rationale. Lag estimates are reduced when the drug has FDA Breakthrough or EMA PRIME designation (sponsors file globally in parallel).

Estimate based on the BIO/Informa industry phase transition rates plus per-drug modifiers for therapeutic area, sponsor type, FDA designations, mechanism, and trial design. Per-jurisdiction lags from Tufts CSDD international approval studies. Not investment, clinical or regulatory advice. Methodology: /methodology#likelihood.

At a glance

Generic name	EPIRIZOLE
Modality	Small molecule
Therapeutic area	Other
Phase	Phase 2

Mechanism of action

Imagine your body's cells are like locks, and Mebron is a key that fits into those locks. When Mebron binds to the locks, it helps to turn off or turn on certain cellular processes that are involved in the disease it's meant to treat. This can help to restore balance to the body's normal functioning.

Approved indications

No approved indications tracked.

Common side effects

No common side effects on file.

Competitive intelligence

For the full competitive landscape — auto-detected comparators, recent regulatory actions across the set, upcoming PDUFA, patent timeline, sponsor landscape:

Mebron CI brief — competitive landscape report
Mebron updates RSS · CI watch RSS

Frequently asked questions about Mebron

What is Mebron?

Mebron (EPIRIZOLE) is a Small molecule drug.

How does Mebron work?

Mebron works by binding to specific proteins or receptors in the body to produce a therapeutic effect.

What is the generic name of Mebron?

EPIRIZOLE is the generic (nonproprietary) name of Mebron.

What development phase is Mebron in?

Mebron is in Phase 2.

Therapeutic area: All drugs in Other

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing