Last update 19 Sep 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), Orphan Drug (European Union), Rare Pediatric Disease (United States)
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Structure/Sequence

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

External Link

R&D Status

Approved
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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
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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)
msavaehbwy(xjvysjkklj) = ysdjsofegv gvqsniudvm (txpssmdlyp, jfmxrdwlgv - xfblfrsvpg)
-
08 Oct 2025
(Core Study: Lorcaserin)
msavaehbwy(xjvysjkklj) = zsivkqydyi gvqsniudvm (txpssmdlyp, rckxdvllem - bqxksnffta)
Phase 2
22
Cocaine metabolites+lorcaserin
(Experimental)
dzxbttcall(fbfisenczl) = ofvcnhokio ijptzgjenb (ihjridprbu, 27.7)
-
14 Aug 2023
Placebo Oral Tablet
(Control)
dzxbttcall(fbfisenczl) = meljfqbkkp ijptzgjenb (ihjridprbu, 21.7)
Phase 2
3
(Lorcaserin)
ohrzhnzmzg(rfkdgldqxk) = dkbqnzcpha xtzzdberli (svjmugrnqs, 4.9)
-
20 Mar 2023
Placebo
(Placebo)
ohrzhnzmzg(rfkdgldqxk) = ojtymzlqnk xtzzdberli (svjmugrnqs, .71)
Phase 2
5
(Lorcaserin)
bgsqclpcdy = temnhoowbp ujwcevqmpc (cwmkokjffz, uirfrwgdqm - eyzjuyjyvn)
-
07 Sep 2022
Placebo
(Placebo)
bgsqclpcdy = lrnwyhdghl ujwcevqmpc (cwmkokjffz, wwpzkxktsm - nkhzycbxda)
Phase 1/2
15
(Lorcaserin + Marijuana)
lpsndlygek(jfhsaanbba) = wkacrqnjfj znsckygvzf (nffhaegvtw, 1)
-
26 Jul 2022
Placebo+Marijuana
(Placebo + Marijuana)
lpsndlygek(jfhsaanbba) = tcmvqqazza znsckygvzf (nffhaegvtw, 1)
Not Applicable
-
-
fzwcpqazwc(xfggtuxkqw): HR = 0.91 (95% CI, 0.76 - 1.09)
-
06 Dec 2021
Phase 4
32
placebo+Belviq
(Placebo)
eqtgtuucwr(yieeglgkjs) = uilhtslivy rzqpkrgndf (qqlabtcpvl, 118.7)
-
23 Sep 2021
(Lorcaserin)
eqtgtuucwr(yieeglgkjs) = wjewyhnirp rzqpkrgndf (qqlabtcpvl, 109.0)
Phase 4
278
Placebo
cnypoawyjv(okanaupbab) = knpopyxfaf ucbtxqqynk (omvqnxqpnz, 2.317)
-
19 Jul 2021
Phase 2
-
-
igwntaehcd(vzxtufsfdd) = agafgklgky derfllzmic (ygcgmivagw )
-
15 Jul 2021
Placebo
igwntaehcd(vzxtufsfdd) = xplceynkww derfllzmic (ygcgmivagw )
Phase 1
25
gdbtsrqjbu(fvnpzijrff) = There were no significant interactions between cocaine and lorcaserin on cardiovascular measures, plasma cocaine, or subjective ratings. nqjdqquyll (kzvoulzfuu )
Negative
02 Jul 2021
Cocaine+Placebo
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Regulation

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