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Role of Instructions in Nitrous Oxide Effects and Choice - 10

Role of Instructions in Nitrous Oxide Effects and Choice

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00000258
Enrollment
22
Registered
1999-09-21
Start date
1996-04-30
Completion date
1997-11-30
Last updated
2015-05-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Opioid-Related Disorders, Substance-Related Disorders

Keywords

nitrous oxide, instruction, subjective effects, reinforcer, healthy volunteer

Brief summary

The purpose of this study is to conduct experiments to examine subjective and reinforcing effects of nitrous oxide. Mood altering and psychomotor effects will be tested on non-drug abusers and preference procedures will be used to assess reinforcing effects. Comparisons between nitrous oxide, opiates, and benzodiazepine antagonists will be made. To evaluate the role of instructions in nitrous oxide subjective effects and choice.

Interventions

DRUGNitrous oxide 10% & placebo
DRUGNitrous oxide 20% & placebo
DRUGNitrous oxide 30% & placebo
DRUGNitrous oxide 40% and placebo

Sponsors

National Institute on Drug Abuse (NIDA)
CollaboratorNIH
University of Chicago
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
21 Years to 32 Years
Healthy volunteers
Yes

Inclusion criteria

Please contact site for information.

Design outcomes

Primary

MeasureTime frameDescription
Choice of nitrous oxide vs placeboAfter 30 min inhalation of eachSubjects inhaled placebo and varying per centages of nitrous oxide in sampling pair, then chose for third inhalation. One group was told which of the gases they were inhaling during sampling and one group as well as the technician administering the inhalant was blinded. Psychomotor tests were done at each dose.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026