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Nazasetron (AZASETRON)

Phase 2 active Small molecule ✓ Verified Jun 2026

Nazasetron (generic name: AZASETRON) is a azasetron drug. It is currently in Phase 2 development.

Nazasetron works by binding to the 5-hydroxytryptamine receptor 3A, blocking its action and reducing symptoms.

Nazasetron, also known as AZASETRON, is a small molecule drug that targets the 5-hydroxytryptamine receptor 3A. It belongs to the azasetron class and is used to treat certain conditions. However, its commercial status and approved indications are unknown. Further research is needed to determine its safety profile and potential side effects. As a result, it is not currently available in the market.

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 nameAZASETRON
Drug classazasetron
Target5-hydroxytryptamine receptor 3A
ModalitySmall molecule
Therapeutic areaOther
PhasePhase 2

Mechanism of action

Imagine your body has a system of locks and keys. The 5-hydroxytryptamine receptor 3A is like a lock, and serotonin is the key. Nazasetron is a key that blocks the lock, preventing serotonin from triggering certain responses in the body.

Approved indications

No approved indications tracked.

Common side effects

No common side effects on file.

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

Competitive intelligence

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

Frequently asked questions about Nazasetron

What is Nazasetron?

Nazasetron (AZASETRON) is a azasetron drug.

How does Nazasetron work?

Nazasetron works by binding to the 5-hydroxytryptamine receptor 3A, blocking its action and reducing symptoms.

What is the generic name of Nazasetron?

AZASETRON is the generic (nonproprietary) name of Nazasetron.

What drug class is Nazasetron in?

Nazasetron belongs to the azasetron class. See all azasetron drugs at /class/azasetron.

What development phase is Nazasetron in?

Nazasetron is in Phase 2.

What does Nazasetron target?

Nazasetron targets 5-hydroxytryptamine receptor 3A and is a azasetron.

Related

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