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CompletedNCT02393599Updated Jan 11, 2017

Study to Assess Potential Interactions Between Intravenous Cocaine and Oral Lorcaserin

A Phase 1 interventional study of Lorcaserin and Placebo in Cocaine Abuse, sponsored by National Institute on Drug Abuse (NIDA). Completed at 1 site in United States. Open to participants aged 18 Years to 50 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-01-11.

Sponsored by National Institute on Drug Abuse (NIDA) · Phase 1, Interventional, and Diagnostic

Phase
Phase 1
Study type
Interventional
Enrollment
20
Allocation
Randomized
Ages
18 Years to 50 Years
Sex
All
01

Study summary

The primary objective of this study is to determine if there are significant interactions between oral lorcaserin treatment concurrent with 20 and 40 mg intravenous (i.v.) cocaine infusions by measuring adverse events (AEs) and cardiovascular responses including heart rate (HR), blood pressure (BP), and electrocardiogram (ECG) (including QTc).

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Conditions studied

  • Cocaine Abuse
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In context

Cocaine-Related Disorders

415 studies on the registry are indexed under Cocaine-Related Disorders; 12 are open to participants now.

This study's enrollment of 20 is below the median of 60 across 312 interventional studies indexed under Cocaine-Related Disorders.

Browse Cocaine-Related Disorders studies →

Lead sponsor

National Institute on Drug Abuse (NIDA) is the lead sponsor of 388 studies on the registry; 19 are open to participants now.

Of its 12 completed or terminated interventional studies of FDA-regulated products, 5 (42%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 50 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Be volunteers who are not seeking treatment for drug addiction.
  • Be between 18 and 50 years-of-age.
  • Meet Diagnostic and Statistical Manual (DSM-IV) - Text Revision (TR) criteria for current cocaine abuse as assessed using the MINI neuropsychiatric interview (version 6.0).
  • Have a body mass index (BMI) within a range of 18.0 to 34.0 kg/m2 and a minimum weight of at least 50.0 kg at screening.
  • Have experience using cocaine by the smoked or i.v. route at least 6 times in the past 12 months prior to clinic intake (Day -3) and at least one use within the past 30 days.
  • Provide a urine sample positive for cocaine at least once during screening (Days -28 to -4).
  • Be able to verbalize understanding of consent form, able to provide written informed consent, and verbalize willingness to complete study procedures.
  • Females must have a negative serum pregnancy test at screening and negative urine pregnancy test at intake prior to receiving the first dose of investigational drug. They must also be postmenopausal, have had a hysterectomy, been sterilized, have a partner with a vasectomy, or agree to use one of the following methods of birth control starting at least 14 days prior to clinic intake:

    1. diaphragm and condom by partner
    2. condom and spermicide by partner
    3. intrauterine device and condom by partner
    4. sponge and condom by partner
    5. complete abstinence from sexual intercourse
    6. oral contraceptives, Depo-Provera, Norplant, Patch, and intrauterine progesterone contraceptive
  • Be able to comply with protocol requirements, rules and regulations of the study site and be likely to complete all the study treatments.

Exclusion criteria

Exclusion Criteria:

  • Please contact site directly for more information
05

Study design

Phase
Phase 1
Primary purpose
Diagnostic
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
20 participants (actual)

Study arms

  • Experimental
    Lorcaserin

    Lorcaserin (10mg) will be administered 2 times per day from Days 3 to 9 and only one time on Day 10

    Drug: Lorcaserin · Drug: Cocaine Infusion

  • Placebo comparator
    Placebo

    Placebo will be administered 2 times per day from Days 3 to 9 and only one time on Day 10

    Drug: Placebo

Interventions

  • DrugLorcaserin

    10 mg 2 times per day from Day 3 to 9 and one time on Day 10

  • DrugPlacebo

    10 mg 2 times per day from Day 3 to 9 and one time on Day 10

  • DrugCocaine Infusion

    Screening / Session 1, Study Day -2: 20 mg cocaine, followed by a saline infusion, followed by 40 mg cocaine Baseline/ Session 2, Study Day 1: Saline or 20 mg cocaine followed by either 20 mg cocaine or saline Baseline / Session 3, Study Day 2: Saline or 40 mg cocaine followed by either 40 mg cocaine or saline Treatment / Session 4, Study Day 9: Saline or 20 mg cocaine followed by either 20 mg cocaine or saline Treatment / Session 5, Study Day10: Saline or 40 mg cocaine followed by either 40 mg cocaine or saline

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What researchers measure

Primary outcomes

  1. Number of Participants with Adverse Events

    Time frame: From intake (day -3) through follow-up (day 26)

  2. Number of Participants with Cardiovascular Responses

    Time frame: From screening (day -28 through day -4) through follow-up (day 26)

Secondary outcomes

  1. Number of Participants with an Change in the Pharmacokinetics (PK) of Cocaine by Measuring the Cocaine Concentration in Plasma

    Time frame: Day 4, 6, 8 through 12

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Study locations

1 site
  • Vince Associates Clinical Research, Inc.
    Overland Park, Kansas 66212, United States
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 11, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02393599
Lead sponsor
National Institute on Drug Abuse (NIDA)
Responsible party
Sponsor
First posted
Mar 19, 2015
Start date
May 2015
Primary completion
Aug 2015
Completion
Sep 2015
Last update
Jan 11, 2017

Study contacts

Debra Kelsh, Ph.D.
principal investigator · Vince & Associates Clinical Research, Inc.

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2015. You cannot join it, but the record below documents what was studied.

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