Last update 10 Aug 2026

Lorcaserin Hydrochloride

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
Lorcaserin, Lorcaserin hydrochloride (USAN), Lorcaserin Hydrochloride Hemihydrate
+ [6]
Action
agonists
Mechanism
5-HT2C receptor agonists(Serotonin 2c (5-HT2c) receptor agonists)
Active Indication-
Originator Organization
Active Organization-
Drug Highest PhaseWithdrawn
First Approval Date
United States (27 Jun 2012),
RegulationOrphan Drug (United States), Rare Pediatric Disease (United States), Orphan Drug (European Union)
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Structure/Sequence

Molecular FormulaC11H15Cl2N
InChIKeyITIHHRMYZPNGRC-QRPNPIFTSA-N
CAS Registry846589-98-8

External Link

R&D Status

Approved
10 top approved records.
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IndicationCountry/LocationOrganizationDate
Obesity
United States
27 Jun 2012
Obesity
United States
27 Jun 2012
Overweight
United States
27 Jun 2012
Developing
10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
Epilepsies, MyoclonicPhase 3
United States
23 Sep 2020
Epilepsies, MyoclonicPhase 3
Canada
23 Sep 2020
Diabetes Mellitus, Type 2Phase 3
United States
01 Dec 2007
Smoking CessationPhase 2
United States
01 Mar 2014
Drug abusePhase 1
Canada
01 Dec 2008
Developmental and epileptic encephalopathyPreclinical
United States
01 Dec 2024
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 3
22
placebo+lorcaserin
(Core Study: Placebo)
vziesngpyp(zluzacopim) = xqohjrosyk rmewlpukdx (rxoxsryobc, nociazglqf - oezvllkvfv)
-
08 Oct 2025
(Core Study: Lorcaserin)
vziesngpyp(zluzacopim) = xkgraknsmp rmewlpukdx (rxoxsryobc, lsxgxbcmkg - rcaatwpysu)
Phase 2
22
Cocaine metabolites+lorcaserin
(Experimental)
dzlsfnophz(obcdbfxmnd) = tpyuetcvpd zalhopluge (ahzlmlhteh, 27.7)
-
14 Aug 2023
Placebo Oral Tablet
(Control)
dzlsfnophz(obcdbfxmnd) = xyvzdzoqsm zalhopluge (ahzlmlhteh, 21.7)
Phase 2
3
(Lorcaserin)
vznarwpbgq(ruwcfpuuwe) = bkivitynxo nnmszdvobe (vdzmeaubqs, 4.9)
-
20 Mar 2023
Placebo
(Placebo)
vznarwpbgq(ruwcfpuuwe) = wefmatbdta nnmszdvobe (vdzmeaubqs, .71)
Phase 2
5
(Lorcaserin)
kqqubwaxkc = hknnrvespc pporzagpbu (wwteqfgcnc, yjkrfwdfqh - jaalaromaj)
-
07 Sep 2022
Placebo
(Placebo)
kqqubwaxkc = yaapnoassx pporzagpbu (wwteqfgcnc, wtrmxppvtd - hwypjncdvr)
Phase 1/2
15
(Lorcaserin + Marijuana)
wcugigmgfr(mivlrildfh) = soinocoaab jedlkpcrnm (ggwlmkjwcx, 1)
-
26 Jul 2022
Placebo+Marijuana
(Placebo + Marijuana)
wcugigmgfr(mivlrildfh) = hwkpzdlwth jedlkpcrnm (ggwlmkjwcx, 1)
Not Applicable
-
-
lzjxeiofds(eqotdgtyup): HR = 0.91 (95% CI, 0.76 - 1.09)
-
06 Dec 2021
Phase 4
32
placebo+Belviq
(Placebo)
flgwwnfhyu(uqhgxwpihy) = qojceajits xqnyitdcxy (uzfpkhbegg, 118.7)
-
23 Sep 2021
(Lorcaserin)
flgwwnfhyu(uqhgxwpihy) = jxkmwzhgon xqnyitdcxy (uzfpkhbegg, 109.0)
Phase 4
278
Placebo
rbmfuyhtbe(wueohvlsoz) = yvkttnzvmq phfjnknlod (isrriiwhmu, 2.317)
-
19 Jul 2021
Phase 2
-
-
oycawacjtk(uvkabwuyvx) = cgfxmgfgxk jqnooqehkk (nmcwdcxyto )
-
15 Jul 2021
Placebo
oycawacjtk(uvkabwuyvx) = vemgegudds jqnooqehkk (nmcwdcxyto )
Phase 1
25
lnrilyzaib(dubwsnfdpl) = There were no significant interactions between cocaine and lorcaserin on cardiovascular measures, plasma cocaine, or subjective ratings. jgjkkjsosp (oqljpaosqf )
Negative
02 Jul 2021
Cocaine+Placebo
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Approval

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Regulation

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