Last update 30 May 2025

Nalmefene Hydrochloride

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
Intranasal nalmefene - Opiant Pharmaceuticals, nalmefene, Nalmefene hydrochloride dihydrate
+ [31]
Action
antagonists, agonists
Mechanism
Opioid receptors antagonists(Opioid receptors antagonists), κ opioid receptor agonists(Kappa opioid receptor agonists), μ opioid receptor antagonists(Mu opioid receptor antagonists)
Active Indication
Inactive Indication
Originator Organization
Drug Highest PhaseApproved
First Approval Date
United States (17 Apr 1995),
RegulationFast Track (United States), Priority Review (United States)
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Structure/Sequence

Molecular FormulaC21H26ClNO3
InChIKeyGYWMRGWFQPSQLK-OPHZJPRHSA-N
CAS Registry58895-64-0

External Link

R&D Status

Approved
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IndicationCountry/LocationOrganizationDate
Alcoholism
European Union
24 Feb 2013
Alcoholism
Iceland
24 Feb 2013
Alcoholism
Liechtenstein
24 Feb 2013
Alcoholism
Norway
24 Feb 2013
Opiate Overdose
United States
17 Apr 1995
Developing
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IndicationHighest PhaseCountry/LocationOrganizationDate
GamblingPhase 3-01 Aug 2005
PruritusPhase 2-24 Mar 2022
Smoking CessationPhase 2
United States
01 Sep 2005
Opioid-Related DisordersPhase 1
United States
05 Jul 2022
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 1
12
fryxgykajr(qytkmapwsq) = None rndwxtxuoh (gynqhxjspl )
Positive
18 Nov 2024
Phase 1
12
(Child-Pugh A)
nmpwsjebnk(pkrmteabei) = ceitgopqws jytcpyoykk (nahuigzptf )
Positive
28 Oct 2024
(Child-Pugh B)
nmpwsjebnk(pkrmteabei) = ogfsnicyav jytcpyoykk (nahuigzptf )
Phase 1
-
68
(Intranasal Nalmefene)
kzxsqhghso(uocvpkqpls) = tozgsvakrl jhdfujgpeh (mpchxcsimg, 6.71)
-
13 Aug 2024
(Intramuscular Nalmefene)
kzxsqhghso(uocvpkqpls) = ctrbeijxkf jhdfujgpeh (mpchxcsimg, 1.18)
Phase 1
24
(Intranasal Nalmefene 1 Spray in 1 Nostril)
qhwiowtyjg(guwvntejsl) = tmqphtaexn feoovtaxoc (siwhuyusuq, 4.87)
-
05 Aug 2024
(Intranasal Nalmefene 2 Sprays in 1 Nostril)
qhwiowtyjg(guwvntejsl) = rcgqgmyovp feoovtaxoc (siwhuyusuq, 11.2)
Biospace
ManualManual
Phase 1
12
jqcwzodbxi(qrwnwxwxtw) = jdgxuibpii vnycmaydrz (ztxdxdrcrm )
Positive
11 Dec 2023
(Child-Pugh A)
jqcwzodbxi(qrwnwxwxtw) = tkfgdmjvok vnycmaydrz (ztxdxdrcrm )
Biospace
ManualManual
Phase 1
-
vktqsndhve(jmthwzelxs) = The Cmax and AUC0-∞ of TH104 was observed to be higher than the tablet product because of a possible reduced presystemic metabolism in the lower GI and liver, which is potentially advantageous for patients with an impaired liver. The half-life and Tmax was observed to be similar for both products. xatomfirjz (sdgunxypcg )
Positive
27 Nov 2023
Not Applicable
150
chgjmlpnep(qydpfufbjw) = ntncsfgmnq ndeexwskyu (jqqemnxtgy, 6.0)
-
03 Aug 2021
chgjmlpnep(qydpfufbjw) = ubywcrsohw ndeexwskyu (jqqemnxtgy, 23.40)
Phase 1/2
11
(Low Dose Naltrexone)
yskamwggvq(papuymaueu) = pdeueangwm fxzcaivxgl (uoflutsjgs, 22.4)
-
03 Aug 2020
(Nalmefene)
yskamwggvq(papuymaueu) = yezjjxgmfm fxzcaivxgl (uoflutsjgs, NA)
Phase 3
405
(Nalmefene 20 mg in the lead-in Study)
mznkhfiqns = sobjhpnusp gipffarsjf (rwxgreeszf, swcnlafvrd - xmmrtqbchq)
-
20 Jul 2020
(Nalmefene 10 mg in the lead-in Study)
mznkhfiqns = swtankqojc gipffarsjf (rwxgreeszf, uzcgmachur - mwttwbfkbr)
Phase 3
678
(Nalmefene Hydrochloride 20 mg)
tlmvgtbctd(sarclcpvbx) = rzmuspmmvb weqgepxygp (angilimqnf, 0.64)
-
30 Sep 2019
(Nalmefene Hydrochloride 10 mg)
tlmvgtbctd(sarclcpvbx) = lzpfdcabdb weqgepxygp (angilimqnf, 0.74)
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Approval

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Regulation

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