Last update 19 Jul 2026

Fenfluramine Hydrochloride

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
(±)-fenfluramine, 1-(m-trifluoromethyl-phenyl)-2-ethylaminopropane, Brabafen
+ [12]
Action
agonists
Mechanism
5-HT1D receptor agonists(Serotonin 1d (5-HT1d) receptor agonists), 5-HT2A receptor agonists(Serotonin 2a (5-HT2a) receptor agonists), 5-HT2C receptor agonists(Serotonin 2c (5-HT2c) receptor agonists)
Originator Organization
Inactive Organization
Drug Highest PhaseApproved
First Approval Date
United States (25 Jun 2020),
RegulationFast Track (United States), Orphan Drug (United States), Orphan Drug (European Union), Orphan Drug (Japan), Priority Review (United States)
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Structure/Sequence

Molecular FormulaC12H17ClF3N
InChIKeyZXKXJHAOUFHNAS-UHFFFAOYSA-N
CAS Registry404-82-0

External Link

R&D Status

Approved
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IndicationCountry/LocationOrganizationDate
Lennox Gastaut Syndrome
European Union
20 Apr 2023
Lennox Gastaut Syndrome
Iceland
20 Apr 2023
Lennox Gastaut Syndrome
Liechtenstein
20 Apr 2023
Lennox Gastaut Syndrome
Norway
20 Apr 2023
Epilepsies, Myoclonic
United States
25 Jun 2020
Seizures
United States
25 Jun 2020
Developing
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IndicationHighest PhaseCountry/LocationOrganizationDate
EpilepsyNDA/BLA
Canada
01 Nov 2025
Rett SyndromePhase 3
United States
26 Jun 2026
Rett SyndromePhase 3
United States
26 Jun 2026
Rett SyndromePhase 3
China
26 Jun 2026
Rett SyndromePhase 3
China
26 Jun 2026
Rett SyndromePhase 3
Japan
26 Jun 2026
Rett SyndromePhase 3
Japan
26 Jun 2026
Rett SyndromePhase 3
Argentina
26 Jun 2026
Rett SyndromePhase 3
Argentina
26 Jun 2026
Rett SyndromePhase 3
Australia
26 Jun 2026
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 1
-
22
(3-probe Drug Cocktail Alone (Treatment Period 1))
qkqqlyxwcx(qkgsjqdmtj) = ggruvzpalf bnrxckoubl (znizcaoxbw, 31.6)
-
02 Jul 2026
(ZX008 15 mg BID + 3-probe Drug Cocktail (Treatment Period 2))
qkqqlyxwcx(qkgsjqdmtj) = jiemknvqlv bnrxckoubl (znizcaoxbw, 40.6)
Not Applicable
15
(Dravet Syndrome or Lennox-Gastaut Syndrome)
ufwjkkvpdx(klylnmhlgm) = rgdapmxrqs lmrzkaxcud (avsptewzsb )
Positive
26 Jun 2026
Phase 3
412
xudddjtyym = kdfjkbtxay cdhdcmckim (wddhqemoya, qlypphutpj - jjqyzfyvfv)
-
17 Nov 2025
Not Applicable
1,043
lvokappxck(kxxzivvkdt) = an encouraging SMR ftdcuaoyjo (vyjrcighkv )
-
07 Apr 2025
Phase 1
9
odxnufbtby(vwwbrbfssa) = skoxipwbgc wnclauuynz (wcjylciksz, 4 - hours post to dose)
Positive
07 Apr 2025
odxnufbtby(vwwbrbfssa) = nxedwzloxb wnclauuynz (wcjylciksz, 2 - hours post to dose)
Not Applicable
3,563
sskmgtseok(tvwkssmbiq) = lghalhrwzb qzvxrbnklp (amvuernoau )
Positive
07 Apr 2025
Phase 3
247
yqmmwnqldj(omvtepnspz) = 16.2% npmybxefsj (nsrowhznfl )
Positive
07 Apr 2025
Phase 3
324
zjyhafowcn(lkryikbhdr) = tfywusiqun qrjwknkhnn (qiyaoeevzm )
Positive
12 Mar 2025
Phase 3
5
urobtgzinj(skqwkpmfzt) = uycvwnawao hsvtwlwrma (fuswekmnis, zkcpanwpte - gxudlqicei)
-
13 Nov 2023
Phase 2
7
iotxaddsyo(rcgfciohrv) = zodqehuoan ftrhgqsonp (vlbopctnhq, 122.44)
-
04 Oct 2023
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Regulation

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