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Substance-Related DisordersPhase 4NCT03075501

Interactions Between Drug Effects and Environments II

A Phase 4 study testing Paired and Stimulant or sedative in people with Substance-Related Disorders, run by University of Illinois Chicago at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of the study is to determine how associations between drugs and the places where they are experienced influence drug seeking, mood and acute drug responses. Read more about this study

Who is it for?
Ages 18 to 40 yearsHealthy volunteers can take part
Conditions the study is for
Substance-Related Disorders
What is being tested?
Paired and Stimulant or sedative
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
133 participants
Where
1 siteUnited States
Study dates
Nov 2015to Jul 2020
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 40 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • past use of stimulants
  • bmi 19-26
  • hormonal birth control for women

Who cannot join

  • current or recent (Past year) history of major axis I disorder

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Illinois at Chicago

    Chicago, Illinois, 60612

Other trials in United States

About this study

Official title: Drug Contextual Conditioning With in Humans: Causes and Consequences

The purpose of the study is to determine how associations between drugs and the places where they are experienced influence drug seeking, mood and acute drug responses.

Read the detailed description

Learned associations between drug effects and the people, places, and paraphernalia (cues) linked with drug experiences are a major barrier to the treatment of drug addiction. These links are remarkably persistent and can cause relapse to drug taking even after long periods of abstinence. They are also key features in some of the foremost theories of addiction, yet there is little clinical evidence of how these associations are formed and how they come to profoundly control behavior. The long-term goal of this research is to understand how drug cues become powerfully linked with drug experiences and their influence on mood and behavior. In the proposed project, the investigators will use a de novo conditioning paradigm to examine the influence of drug contexts on drug seeking, mood and acute drug responses. The hypothesis is that drug-paired contexts gain motivational salience, induce approach, and alter acute subjective responses to the drug.This knowledge will lead to novel treatment strategies to counteract the effects of drug cues on mood and behavior, and also to prevent relapse.

Being tested
Paired, Stimulant or sedative, Placebo
Keywords
drug cues
Medical subject headings
Substance-Related Disorders

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • PairedBehavioural

    Also called Conditioned place preference

    Drug conditioning is assessed by pairing drug administration with a given context.

  • Stimulant or sedativeDrug

    CS+ for paired, CS0 for unpaired

  • PlaceboDrug

    CS- for paired, CS0 for unpaired

Study groups in NCT03075501
Study groupRoleWhat they receive
PairedActive comparatorIndividuals receive drug (stimulant, or sedative) on two separate occasions and placebo on two separate occasions. Individuals receive drug in only one room.
Receives: Behavioral: Paired; Drug: Stimulant or sedative; Drug: Placebo
UnpairedOtherIndividuals receive drug (stimulant, or sedative) on two separate occasions and placebo on two separate occasions. Individuals receive drug in both rooms.
Receives: Drug: Stimulant or sedative; Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in Time Spent in Drug-paired Room

    The amount of time spent in the two testing rooms is assessed during a 10min exploration test conducted at the orientation session (pre-test) and again at the testing session (post-test). Between the pre- and post-tests, participants complete 4 drug administration sessions; 2 with 20mg MA, 2 with 0mg MA. The Paired Group always receives 20mg MA in the room they spent the least time in at pre-test, and 0mg MA in the other room. The Unpaired Group receives 20mg MA and 0mg MA once in each room. The research question is whether the Paired Group spends significantly more time in the room paired with 20mg MA in comparison to the Unpaired Group. Thus, the outcome measure is the difference in time spent in the room paired with drug administration (i.e. the room that they spent the least time in at pre-test) between pre- and post-tests (i.e., post-test time spent - pre-test time spent) which is compared between the groups. NOTE: Time spent is NOT obtained during drug administration sessions.

    Measured: Measured through study completion (maximum 5 weeks).

Secondary outcomes (1)
  1. Subjective Drug Effects

    Self-reported drug effects are measured using standardized questionnaires 30min before capsule administration (baseline) and at 30min intervals after capsule administration for 4h during each drug administration session. The peak change from baseline is calculated for each session and averaged across drug and placebo sessions. A net difference is calculated by subtracting the mean peak change from baseline during placebo sessions from the mean peak change from baseline during drug (20mg MA) sessions.

    Outcome measure: Subjective stimulation (i.e., feeling alert, aroused, energetic) is measured using the Amphetamine scale of the Addiction Research Center Inventory. Scores range from 0-11 with greater scores indicating greater drug effects.

    Measured: Self-reported drug effects are measured 30min before drug administration and at 30min intervals after drug administration for 4h during each drug administration session.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Mar 2017
  2. Study startNov 2015
  3. Primary completionJul 2020
  4. Study completionJul 2020

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Other
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Care provider
Enrolment
133 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03075501
Sponsor's protocol ID
2015-0075
Other IDs
R21DA033488-01A1
Status last verified
Apr 2021
First submitted
18 May 2016
Last updated
19 May 2021
Data monitoring committee
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Paired and Stimulant or sedative in people with Substance-Related Disorders, run by University of Illinois Chicago at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 19 May 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 19 May 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in Time Spent in Drug-paired Room (time frame: Measured through study completion (maximum 5 weeks).). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 May 2021.

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