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Showing 1–24 of 32 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: placebo lorcaserin Clear all
Withdrawn Phase 1 Interventional

Rebalancing the Serotonergic System in Cocaine Dependence

NCT03266939
View directory record Official record
Conditions
Cocaine Dependence
Interventions
Lorcaserin, Placebo Oral Tablet
Drug
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 55 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 19, 2025 · Synced Sep 13, 2026, 2:41 PM EDT
Completed Phase 1 Interventional

To Assess the Effect of Lorcaserin Hydrochloride on Energy Metabolism and Food Intake

NCT00829140
View directory record Official record
Conditions
Obesity
Interventions
Placebo, Lorcaserin 10mg BID
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Sep 11, 2019 · Synced Sep 13, 2026, 2:41 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Lorcaserin in the Treatment of Cocaine Use Disorder

NCT03007394
View directory record Official record
Conditions
Cocaine-Related Disorders
Interventions
Lorcaserin, Placebo Oral Capsule
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 65 Years
Enrollment
272 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
12
States / cities
La Jolla, California • Los Angeles, California • Newport Beach, California + 9 more
Source: ClinicalTrials.gov public record
Updated Aug 4, 2020 · Synced Sep 13, 2026, 2:41 PM EDT
Completed Phase 1 Interventional Results available

Drug Interaction and Self Administration Studies of Compounds for Cocaine Use Disorder

NCT02537873
View directory record Official record
Conditions
Cocaine Use Disorder
Interventions
Lorcaserin, Cocaine Intravenous (IV), Placebo comparator
Drug
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 59 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated May 11, 2020 · Synced Sep 13, 2026, 2:41 PM EDT
Active, not recruiting Phase 4 Interventional Accepts healthy volunteers

Lorcaserin in Obesity: Identification of CNS Targets Using fMRI

NCT02400359
View directory record Official record
Conditions
Obesity, Weight Loss
Interventions
Lorcaserin HCl, Placebo
Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced Sep 13, 2026, 2:41 PM EDT
Completed Phase 4 Interventional Results available

A Multicenter, Double-blind, Randomized, Parallel-group, Pilot Study of 12-week Duration to Assess the Short-term Safety and Tolerability of Lorcaserin Plus Two Doses of Immediate-Release Phentermine-HCl Compared With Lorcaserin Alone in Overweight and Obese Adults

NCT01987427
View directory record Official record
Conditions
Chronic Weight Management
Interventions
lorcaserin + phentermine placebo, lorcaserin + phentermine-HCl + phentermine placebo, lorcaserin + phentermine-HCl
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years to 60 Years
Enrollment
344 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
13
States / cities
Birmingham, Alabama • Chandler, Arizona • La Jolla, California + 10 more
Source: ClinicalTrials.gov public record
Updated Sep 29, 2019 · Synced Sep 13, 2026, 2:41 PM EDT
Terminated Phase 4 Interventional Results available

MEtformin and Lorcaserin for WeighT Loss in Schizophrenia

NCT02796144
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder, Overweight
Interventions
Lorcaserin, Metformin, Placebo
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 65 Years
Enrollment
71 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
4
States / cities
Augusta, Georgia • New York, New York • Chapel Hill, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 2, 2021 · Synced Sep 13, 2026, 2:41 PM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Predictors of Lorcaserin-Induced Weight Loss

NCT03353220
View directory record Official record
Conditions
Overweight and Obesity
Interventions
Belviq, Placebo
Drug
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 60 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 26, 2024 · Synced Sep 13, 2026, 2:41 PM EDT
Completed Phase 3 Interventional Results available

BLOOM: Behavioral Modification and Lorcaserin for Overweight and Obesity Management

NCT00395135
View directory record Official record
Conditions
Obesity
Interventions
Lorcaserin 10 mg BID, Matching Placebo BID
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
3,182 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Oct 1, 2019 · Synced Sep 13, 2026, 2:41 PM EDT
Completed Phase 4 Interventional Results available

A Study to Evaluate the Effect of Long-term Treatment With BELVIQ (Lorcaserin HCl) on the Incidence of Major Adverse Cardiovascular Events and Conversion to Type 2 Diabetes Mellitus in Obese and Overweight Subjects With Cardiovascular Disease or Multiple Cardiovascular Risk Factors

NCT02019264
View directory record Official record
Conditions
Cardiovascular Disease, High Cardiovascular Risk, Obesity, Overweight, Type 2 Diabetes
Interventions
Lorcaserin hydrochloride, Placebo
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
40 Years and older
Enrollment
14,673 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
373
States / cities
Alexander City, Alabama • Athens, Alabama • Birmingham, Alabama + 283 more
Source: ClinicalTrials.gov public record
Updated Jul 15, 2019 · Synced Sep 13, 2026, 2:41 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Lorcaserin in Combination With XR-Naltrexone for Relapse Prevention in Opioid Use Disorder

NCT03169816
View directory record Official record
Conditions
Opioid-use Disorder
Interventions
Lorcaserin, Placebo
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 60 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 4, 2020 · Synced Sep 13, 2026, 2:41 PM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

Laboratory Screening of Lorcaserin for Alcohol Use Disorder

NCT04396847
View directory record Official record
Conditions
Alcohol Use Disorder, Tobacco Smoking
Interventions
Lorcaserin Oral Tablet, Placebo oral tablet
Drug
Lead sponsor
The Mind Research Network
Other
Eligibility
21 Years to 65 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Sep 6, 2022 · Synced Sep 13, 2026, 2:41 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study to Assess Potential Interactions Between Intravenous Cocaine and Oral Lorcaserin

NCT02393599
View directory record Official record
Conditions
Cocaine Abuse
Interventions
Lorcaserin, Placebo, Cocaine Infusion
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 50 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Jan 10, 2017 · Synced Sep 13, 2026, 2:41 PM EDT
Terminated Phase 3 Interventional Results available

A Study of Lorcaserin as Adjunctive Treatment in Participants With Dravet Syndrome

NCT04572243
View directory record Official record
Conditions
Epilepsies, Myoclonic
Interventions
Placebo, Lorcaserin
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
2 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
25
States / cities
Birmingham, Alabama • Los Angeles, California • San Diego, California + 20 more
Source: ClinicalTrials.gov public record
Updated Oct 7, 2025 · Synced Sep 13, 2026, 2:41 PM EDT
Terminated Phase 1 Interventional

Phase I Functional Magnetic Resonance Imaging (fMRI) Pharmacodynamic Studies of Compounds for Opioid Use Disorder and Cocaine Use Disorder

NCT03143543
View directory record Official record
Conditions
Cocaine-Related Disorders, Opioid-Related Disorders
Interventions
Group A Lorcaserin (10mg), Group A2 Lorcaserin (20 mg), Group B Parallel Placebo, Group B2 Parallel Placebo
Drug · Other
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 55 Years
Enrollment
171 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 26, 2020 · Synced Sep 13, 2026, 2:41 PM EDT
Completed Phase 2 Interventional Results available

A Study to Evaluate the Effect of Lorcaserin Hydrochloride on Smoking Cessation

NCT02044874
View directory record Official record
Conditions
Smoking Cessation
Interventions
APD356-lorcaserin hydrochloride, Placebo
Drug
Lead sponsor
Arena Pharmaceuticals
Industry
Eligibility
18 Years to 65 Years
Enrollment
603 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
31
States / cities
Encino, California • Escondido, California • Los Alamitos, California + 27 more
Source: ClinicalTrials.gov public record
Updated Apr 15, 2019 · Synced Sep 13, 2026, 2:41 PM EDT
Completed Not applicable Interventional Results available

Lifestyle Modification and Lorcaserin for Weight Loss Maintenance

NCT02388568
View directory record Official record
Conditions
Obesity
Interventions
Lorcaserin, Placebo
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
21 Years to 65 Years
Enrollment
137 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 10, 2018 · Synced Sep 13, 2026, 2:41 PM EDT
Terminated Early Phase 1 Interventional Results available

Lorcaserin for Cannabis Use Disorder

NCT03637842
View directory record Official record
Conditions
Cannabis Use Disorder
Interventions
Lorcaserin, Placebo oral capsule
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 70 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 27, 2021 · Synced Sep 13, 2026, 2:41 PM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Study to Evaluate the Efficacy and Safety of Belviq XR® in Conjunction With Lifestyle Modification for Weight Loss in Obese Adolescents, Age 12 to 17 Years

NCT03338296
View directory record Official record
Conditions
Obesity
Interventions
lorcaserin hydrochloride XR, Placebo
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
12 Years to 17 Years
Enrollment
278 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
16
States / cities
Phoenix, Arizona • Bell Gardens, California • Long Beach, California + 13 more
Source: ClinicalTrials.gov public record
Updated Jul 18, 2021 · Synced Sep 13, 2026, 2:41 PM EDT
Completed Phase 3 Interventional Results available

BLOSSOM: Behavioral Modification and Lorcaserin Second Study for Obesity Management

NCT00603902
View directory record Official record
Conditions
Obesity
Interventions
Lorcaserin 10 mg once daily (QD), Lorcaserin 10 mg twice a day (BID), Matching Placebo
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
4,008 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Oct 3, 2019 · Synced Sep 13, 2026, 2:41 PM EDT
Terminated Phase 1Phase 2 Interventional Results available

Evaluating Muscle Weakness Improvement With Lorcaserin in ICU

NCT02523690
View directory record Official record
Conditions
Muscle Weakness, Sepsis
Interventions
Lorcaserin, Placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 12, 2020 · Synced Sep 13, 2026, 2:41 PM EDT
Completed Phase 2 Interventional Results available

Combination Nicotine Patch / Lorcaserin for Smoking Cessation

NCT02906644
View directory record Official record
Conditions
Nicotine Dependence
Interventions
lorcaserin, nicotine patch, placebo lorcaserin
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years to 65 Years
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated May 6, 2019 · Synced Sep 13, 2026, 2:41 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Safety and Efficacy of APD356 in the Treatment of Obesity

NCT00104507
View directory record Official record
Conditions
Obesity
Interventions
APD356
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2005
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Sep 11, 2019 · Synced Sep 13, 2026, 2:41 PM EDT
Terminated Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Addressing Post Cessation Weight Gain

NCT02412631
View directory record Official record
Conditions
Obesity, Smoking Cessation
Interventions
lorcaserin, Varenicline, Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 9, 2021 · Synced Sep 13, 2026, 2:41 PM EDT