NCT04178993

Brief Summary

This study will evaluate the behavioral effects of methamphetamine during maintenance on placebo, duloxetine, methylphenidate and duloxetine combined with methylphenidate using sophisticated human laboratory methods.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
8

participants targeted

Target at below P25 for phase_1

Timeline
Completed

Started Sep 2019

Geographic Reach
1 country

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 9, 2019

Completed
23 days until next milestone

Study Start

First participant enrolled

September 1, 2019

Completed
3 months until next milestone

First Posted

Study publicly available on registry

November 26, 2019

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 5, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 5, 2021

Completed
1.7 years until next milestone

Results Posted

Study results publicly available

January 9, 2023

Completed
Last Updated

January 9, 2023

Status Verified

December 1, 2022

Enrollment Period

1.7 years

First QC Date

August 9, 2019

Results QC Date

September 23, 2022

Last Update Submit

December 12, 2022

Conditions

Keywords

MethamphetamineMethylphenidateDuloxetine HydrochlorideCentral Nervous System StimulantsPhysiological Effects of DrugsDopamine Uptake InhibitorsSerotonin and Noradrenaline Reuptake InhibitorsMembrane Transport ModulatorsNeurotransmitter AgentsDopamine AgentsMolecular Mechanisms of Pharmacological ActionSensory System AgentsPeripheral Nervous System AgentsVasoconstrictor AgentsAntidepressive AgentsPsychotropic Drugs

Outcome Measures

Primary Outcomes (4)

  • Reinforcing Effects of Methamphetamine Following Methylphenidate (0 mg; Placebo) Maintenance.

    Number of methamphetamine doses earned by subjects on a progressive ratio schedule of reinforcement. Subjects sample a dose of methamphetamine (0, 10, or 20 mg) and then have ten opportunities (e.g., trials) to "work" for a 1/10th of the sampled dose via clicking on a computer mouse (i.e., 10 completed trials is the full sampled dose).

    Following at least 4 days of maintenance on placebo during inpatient admission, up to 1 week

  • Reinforcing Effects of Methamphetamine Following Methylphenidate (20 mg) Maintenance.

    Number of methamphetamine doses earned by subjects on a progressive ratio schedule of reinforcement. Subjects sample a dose of methamphetamine (0, 10, or 20 mg) and then have the ten opportunities (e.g., trials) to "work" for a 1/10th of the sampled dose via clicking on a computer mouse (i.e., 10 completed trials is the full sampled dose).

    Following at least 4 days of maintenance on drug during inpatient admission, up to 1 week

  • Reinforcing Effects of Methamphetamine Following Methylphenidate (40 mg) Maintenance.

    Number of methamphetamine doses earned by subjects on a progressive ratio schedule of reinforcement. Subjects sample a dose of methamphetamine (0, 10, or 20 mg) and then have the ten opportunities (e.g., trials) to "work" for a 1/10th of the sampled dose via clicking on a computer mouse (i.e., 10 completed trials is the full sampled dose).

    Following at least 4 days of maintenance on drug during inpatient admission, up to 1 week

  • Reinforcing Effects of Methamphetamine Following Methylphenidate (60 mg) Maintenance.

    Number of methamphetamine doses earned by subjects on a progressive ratio schedule of reinforcement. Subjects sample a dose of methamphetamine (0, 10, or 20 mg) and then have the ten opportunities (e.g., trials) to "work" for a 1/10th of the sampled dose via clicking on a computer mouse (i.e., 10 completed trials is the full sampled dose).

    Following at least 4 days of maintenance on drug during inpatient admission, up to 1 week

Secondary Outcomes (28)

  • Heart Rate After Methamphetamine Administration Following Methylphenidate (0 mg) Maintenance.

    Daily over approximately 1 week of inpatient stay.

  • Heart Rate After Methamphetamine Administration Following Methylphenidate (20 mg) Maintenance.

    Daily over approximately 1 week of inpatient stay.

  • Heart Rate After Methamphetamine Administration Following Methylphenidate (40 mg) Maintenance.

    Daily over approximately 1 week of inpatient stay.

  • Heart Rate After Methamphetamine Administration Following Methylphenidate (60 mg) Maintenance.

    Daily over approximately 1 week of inpatient stay.

  • Systolic Blood Pressure After Methamphetamine Administration Following Methylphenidate (0 mg) Maintenance.

    Daily over approximately 1 week of inpatient stay.

  • +23 more secondary outcomes

Other Outcomes (4)

  • Attentional Bias

    12 sessions over approximately 4.5 weeks

  • Snaith-Hamilton-Pleasure Scale to Measure Anhedonia (Inability to Experience Pleasure)

    4 times over approximately 4.5 weeks

  • Delay Discounting for Methamphetamine

    4 sessions over approximately 4.5 weeks

  • +1 more other outcomes

Study Arms (2)

Placebo Comparator: Placebo

PLACEBO COMPARATOR

Subjects will be maintained on oral placebo. Subjects will be maintained on placebo and methylphenidate during placebo maintenance. Methamphetamine will be administered acutely during placebo maintenance. Placebo will be administered acutely during placebo maintenance.

Drug: MethamphetamineDrug: MethylphenidateDrug: Placebo oral capsule

Active Comparator: Duloxetine

ACTIVE COMPARATOR

Subjects will be maintained on oral duloxetine. Subjects will be maintained on duloxetine and methylphenidate during placebo maintenance. Methamphetamine will be administered acutely during duloxetine maintenance. Placebo will be administered acutely during duloxetine maintenance.

Drug: MethamphetamineDrug: MethylphenidateDrug: Placebo oral capsuleDrug: Duloxetine

Interventions

In each arm, subjects will receive doses of methamphetamine.

Also known as: Metamfetamine
Active Comparator: DuloxetinePlacebo Comparator: Placebo

In each arm, subjects will receive methylphenidate capsules.

Also known as: Metadate®
Active Comparator: DuloxetinePlacebo Comparator: Placebo

In each arm, subjects will receive placebo capsules.

Also known as: Lactose
Active Comparator: DuloxetinePlacebo Comparator: Placebo

Subjects will receive duloxetine capsules in the duloxetine arm.

Also known as: Cymbalta®
Active Comparator: Duloxetine

Eligibility Criteria

Age18 Years - 55 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • recent use of inhaled (i.e., snorted), smoked or injected methamphetamine

You may not qualify if:

  • Abnormal screening outcome (e.g., ECG, blood chemistry result) that study physicians deem clinically significant.
  • Current or past histories of substance use that are deemed by the study physicians to interfere with study completion.
  • History of serious physical disease, current physical disease, impaired cardiovascular functioning, chronic obstructive pulmonary disease, history of seizure or current or past histories of serious psychiatric disorder that in the opinion of the study physician would interfere with study participation will be excluded from participation.
  • Females not currently using effective birth control.
  • Contraindications to methamphetamine, methylphenidate, or duloxetine.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

University of Kentucky

Lexington, Kentucky, 40507, United States

Location

University of Kentucky Medical Center

Lexington, Kentucky, 40536, United States

Location

MeSH Terms

Interventions

MethamphetamineMethylphenidateLactoseDuloxetine Hydrochloride

Intervention Hierarchy (Ancestors)

AmphetaminesPhenethylaminesEthylaminesAminesOrganic ChemicalsPhenylacetatesAcids, CarbocyclicCarboxylic AcidsPiperidinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsDisaccharidesOligosaccharidesPolysaccharidesCarbohydratesSugarsThiophenesSulfur Compounds

Results Point of Contact

Title
Dr. Craig Rush, Ph.D.
Organization
University of Kentucky

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, OUTCOMES ASSESSOR
Purpose
BASIC SCIENCE
Intervention Model
FACTORIAL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

August 9, 2019

First Posted

November 26, 2019

Study Start

September 1, 2019

Primary Completion

May 5, 2021

Study Completion

May 5, 2021

Last Updated

January 9, 2023

Results First Posted

January 9, 2023

Record last verified: 2022-12

Data Sharing

IPD Sharing
Will not share

Locations