> Trialight public data. Index of pages: https://trialight.com/llms.txt
> Web page: https://trialight.com/data/asset/fezolinetant-9dd0ce26-b5de-4f55-b95e-e1b67eb0b69f
> Record changed: 2026-11-04

# Fezolinetant

Highest phase reached

Approved

Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL3608680)

Drug type

Small molecule

Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL3608680)

First approval year

2023

Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL3608680)

## Development status

**First approval year**

2023

Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL3608680)

**Listing at source**

Listed

**Highest phase reached**

Approved

Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL3608680)

## Names and chemistry

**Drug type**

Small molecule

Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL3608680)

**Drug name**

Fezolinetant

Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL3608680)

**Molecular weight**

358.4

Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL3608680)

**Structure (SMILES)**

Cc1nsc(-c2nnc3n2CCN(C(=O)c2ccc(F)cc2)\[C@@H\]3C)n1

Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL3608680)

### Brand names (4)

- veoza
- Veoza
- veozah
- Veozah

### Other names (27)

- a 2693
- A-2693
- a2693
- A2693
- as 3472693 00
- AS-3472693-00
- as3472693 00
- AS3472693-00
- es 256364
- ES-256364
- esn 364
- ESN-364
- esn364
- Esn364
- ESN364
- fezolinetant
- Fezolinetant
- Fezolinetant \[INN\]
- Fezolinetant \[MI\]
- Fezolinetant \[USAN\]
- Fezolinetant \[WHO-DD\]
- fezolinetant inn
- fezolinetant mi
- fezolinetant usan
- fezolinetant who dd

And 2 more, listed on the interactive page.

## Identifiers

**ATC classification codes**

- G02CX06

Sources for recorded values

Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL3608680)

**CAS registry numbers**

- 1629229-37-3

**ChEMBL ID**

CHEMBL3608680

Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL3608680)

**InChIKey**

PPSNFPASKFYPMN-SECBINFHSA-N

Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL3608680)

**PubChem compound IDs**

- 117604931

**RxNorm IDs (RxCUI)**

- 2637134

**FDA ingredient codes (UNII)**

- 83VNE45KXX

## Regulatory information

### United States

**Applicant**

ASTELLAS

**Approval date**

12 May 2023

**Application number**

NDA216578

### European Union

**Status**

Authorised

**Status date**

7 Dec 2023

**Authorisation date**

7 Dec 2023

**Approved indications**

Veoza is indicated for the treatment of moderate to severe vasomotor symptoms (VMS) associated with menopause.

**Product number**

EMEA/H/C/005851

**Authorisation holder**

Astellas Pharma Europe B.V.

**Priority medicines scheme**

No

**Generic**

No

**Biosimilar**

No

**Generic medicines**

0

**Biosimilar medicines**

0

**Advanced therapy**

No

**Conditional approval**

No

**Additional monitoring**

Yes

**Accelerated assessment**

No

**Exceptional circumstances**

No

#### Therapeutic areas

- Hot Flashes
- Menopause

European medicines record

Source: [www.ema.europa.eu](https://www.ema.europa.eu/en/medicines/human/EPAR/veoza)

### Other regulatory facts

**Patents**

4

**Designations**

0

**Earliest recorded loss of exclusivity**

28 Mar 2034

**First in class**

Yes

**Fast track**

No

**Breakthrough designation**

No

**Orphan designation**

No

**Priority review**

No

**Orphan exclusivity**

No

**Accelerated approval**

No

**Availability**

Prescription only

**Boxed warning**

Yes

## Approval status

**United States (FDA)**

Approved

**European Union (EMA)**

Authorised

## Pharmacology

### Drug classification

**Pharmacology name**

fezolinetant

**Type**

Synthetic organic

**Drug name stem**

\-tant

**Approval recorded by Guide to Pharmacology**

Yes

#### Administration routes

- Oral

### Mechanisms of action (2)

- **Action**  
Antagonist

**Action type**  
Antagonist

**Target**  
NK3 receptor

**Gene symbol**  
TACR3

**Protein identifier**  
P29371

**Median affinity**

7.6

**Affinity units**  
pKi

**Primary target**  
Yes
- **Mechanism**  
Neurokinin 3 receptor antagonist

**Action type**  
Antagonist

**Target**  
Neuromedin-K receptor

**Protein identifier**  
P29371

### Open Targets mechanisms

- **Mechanism**  
Neurokinin 3 receptor antagonist

**Action type**  
Antagonist

**Target**  
Neuromedin-K receptor

### Investigated indications (3)

- **Condition**  
Liver Diseases

**Highest recorded phase**  
1

**Condition identifier**  
EFO:0001421

**Subject identifier**  
D008107
- **Condition**  
Kidney Diseases

**Highest recorded phase**  
1

**Condition identifier**  
EFO:0003086

**Subject identifier**  
D007674
- **Condition**  
Hot Flashes

**Highest recorded phase**  
4

**Condition identifier**  
HP:0031217

**Subject identifier**  
D019584

### Open Targets indications (6)

- **Condition identifier**  
EFO\_0001421

**Highest recorded phase**  
1
- **Condition identifier**  
EFO\_0003086

**Highest recorded phase**  
1
- **Condition identifier**  
GO\_0042697
- **Condition identifier**  
GO\_0042697

**Highest recorded phase**  
4
- **Condition identifier**  
HP\_0031217
- **Condition identifier**  
HP\_0031217

**Highest recorded phase**  
4

### Warnings (4)

- **Warning**  
Black Box Warning

**Effect**  
cardiotoxicity
- **Warning**  
Black Box Warning

**Effect**  
hepatotoxicity
- **Warning**  
Black Box Warning

**Effect**  
immune system toxicity
- **Warning**  
Black Box Warning

**Effect**  
teratogenicity

### Open Targets warnings (4)

- **Warning**  
Black Box Warning

**Effect**  
cardiotoxicity

**Country**  
United States
- **Warning**  
Black Box Warning

**Effect**  
hepatotoxicity

**Country**  
United States
- **Warning**  
Black Box Warning

**Effect**  
immune system toxicity

**Country**  
United States
- **Warning**  
Black Box Warning

**Effect**  
teratogenicity

**Country**  
United States

### Reported adverse events (27)

- **Event**  
alanine aminotransferase abnormal

**Reports**  
3

**Reporting signal score**

7.5477
- **Event**  
alanine aminotransferase increased

**Reports**  
113

**Reporting signal score**

289.781
- **Event**  
anal rash

**Reports**  
1

**Reporting signal score**

6.31154
- **Event**  
aspartate aminotransferase abnormal

**Reports**  
3

**Reporting signal score**

8.76914
- **Event**  
aspartate aminotransferase increased

**Reports**  
76

**Reporting signal score**

172.039
- **Event**  
asthenia

**Reports**  
2

**Reporting signal score**

6.55492
- **Event**  
blood alkaline phosphatase increased

**Reports**  
19

**Reporting signal score**

31.8585
- **Event**  
blood bilirubin increased

**Reports**  
12

**Reporting signal score**

15.2033
- **Event**  
brain fog

**Reports**  
4

**Reporting signal score**

18.3912
- **Event**  
chromaturia

**Reports**  
6

**Reporting signal score**

7.25449
- **Event**  
drug effective for unapproved indication

**Reports**  
5

**Reporting signal score**

11.3552
- **Event**  
dyspnoea

**Reports**  
1

**Reporting signal score**

15.6258
- **Event**  
faeces pale

**Reports**  
3

**Reporting signal score**

7.87333
- **Event**  
gamma-glutamyltransferase increased

**Reports**  
29

**Reporting signal score**

61.0007
- **Event**  
glomerular filtration rate decreased

**Reports**  
5

**Reporting signal score**

7.12937
- **Event**  
hepatic enzyme abnormal

**Reports**  
4

**Reporting signal score**

7.98108
- **Event**  
hepatic enzyme increased

**Reports**  
92

**Reporting signal score**

242.308
- **Event**  
hot flush

**Reports**  
17

**Reporting signal score**

23.4666
- **Event**  
insomnia

**Reports**  
20

**Reporting signal score**

8.04927
- **Event**  
liver function test increased

**Reports**  
41

**Reporting signal score**

113.336
- **Event**  
loss of therapeutic response

**Reports**  
2

**Reporting signal score**

6.20604
- **Event**  
nightmare

**Reports**  
8

**Reporting signal score**

9.10332
- **Event**  
pain

**Reports**  
2

**Reporting signal score**

9.51294
- **Event**  
product prescribing issue

**Reports**  
4

**Reporting signal score**

9.53736
- **Event**  
symptom recurrence

**Reports**  
3

**Reporting signal score**

9.27741

And 2 more, listed on the interactive page.

### Trial references (12)

- NCT04003142  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT04003142)
- NCT04003155  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT04003155)
- NCT04003389  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT04003389)
- NCT04234204  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT04234204)
- NCT04451226  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT04451226)
- NCT05034042  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05034042)
- NCT05419908  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05419908)
- NCT06206408  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06206408)
- NCT06206421  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06206421)
- NCT06440967  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06440967)
- NCT04476849  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT04476849)
- NCT04482270  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT04482270)

## Dosing

**Dose**

45 mg

**Route**

Oral

**How often**

Once daily

### Conditions of use (4)

- Administer at about the same time each day
- Do not cut, crush, or chew tablets
- Swallow whole
- Take with liquids

## Chemical properties

**Hydrogen bond acceptors**

7

**Hydrogen bond donors**

0

**Polar surface area**

76.8

**Calculated partition coefficient (ALogP)**

2.46

**Calculated partition coefficient (XLogP)**

1.6

**Prodrug**

No

**Chirality**

Single enantiomer

**Inorganic**

No

**Rule-of-five violations**

0

**Rotatable bonds**

2

**Heavy atoms**

25

**Molecular formula**

C16H15FN6OS

**Monoisotopic mass**

358.10120846

**Natural product**

No

## National Drug Codes

- 0469-2460
- 0469-2660
- 0469-2760

## Evidence counts

**Recorded assays**

101

**Active assays**

23

### Active assay types

- Confirmatory

## Biological measurements

These details could not be displayed.

## Related records

### Trials (31)

- A Dose-ranging Study of the Efficacy of ESN364 in Postmenopausal Women Suffering Vasomotor Symptoms (Hot Flashes)
- A Study Following Women in Menopause Treated With a Non-hormonal Therapy for Hot Flashes and Night Sweats
- A Study in Canada to Follow Outcomes of Women in Menopause Treated With Fezolinetant for Hot Flashes, When Given in Clinical Practice
- A Study in Germany to Learn About the Value of Fezolinetant in Treating Hot Flashes and Night Sweats in Women During Menopause
- A Study of Fezolinetant to Treat Hot Flashes in Women Going Through Menopause
- A Study to Assess Bioequivalence of Fezolinetant Formulations in Healthy Female Participants
- A Study to Assess Long-term Safety of Fezolinetant Given to Japanese Women Going Through Menopause
- A Study to Assess the Effect of Food With Fezolinetant in Healthy Female Participants
- A Study to Assess the Safety and Tolerability of Fezolinetant in Women Seeking Treatment for Relief of Vasomotor Symptoms (VMS) Associated With Menopause
- A Study to Assess the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of ESN364 in Healthy Japanese Male and Pre- and Post-menopausal Female Subjects
- A Study to Confirm if Fezolinetant Helps Reduce Hot Flashes in Chinese Women Going Through Menopause
- A Study to Confirm if Fezolinetant Helps Reduce Hot Flashes in Japanese Women Going Through Menopause
- [A Study to Confirm if Fezolinetant Helps Reduce Hot Flashes in Women With Breast Cancer Who Are Having Hormone Therapy](https://trialight.com/data/trial/a-study-to-confirm-if-fezolinetant-helps-reduce-hot-flashes-7c0717ff-baca-4c04-a97a-6ce0f226799e.md)
- A Study to Confirm if Fezolinetant Helps to Reduce Hot Flashes in Indian Women Going Through Menopause
- A Study to Evaluate the Pharmacokinetics and Safety of Fezolinetant in Healthy Chinese Female Subjects
- A Study to Find Out How Safe Long-term Treatment With Fezolinetant is in Women With Hot Flashes Going Through Menopause
- A Study to Find Out if Fezolinetant Helps Reduce Moderate to Severe Hot Flashes in Women Going Through Menopause
- A Study to Find Out if Fezolinetant Helps Reduce Moderate to Severe Hot Flashes in Women Going Through Menopause - 2
- A Study to Find Out if Fezolinetant Helps Reduce Moderate to Severe Hot Flashes in Women in Asia Going Through Menopause
- A Study to Find the Best Dose of Fezolinetant to Treat Hot Flashes in Women Going Through Menopause

### In development for (2)

- [Kidney disorder](https://trialight.com/data/condition/kidney-disorder-e50371fe-f1a7-53fe-9cfb-9d6da9130e3c.md) Phase 1
- [Liver disorder](https://trialight.com/data/condition/liver-disorder-8388d30a-2581-5015-9ddf-adc5f6a331d7.md) Phase 1

### Targets (1)

- [TACR3](https://trialight.com/data/target/tacr3-d04cb4d9-d58e-5026-b9d3-30b091e728ac.md) Neurokinin 3 receptor antagonist

---

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