- Conditions
- Opioid-Related Disorders, Substance-Related Disorders
- Interventions
- Nitrous oxide 10% & placebo, Nitrous oxide 20% & placebo, Nitrous oxide 30% & placebo, Nitrous oxide 40% and placebo
- Drug
- Lead sponsor
- University of Chicago
- Other
- Eligibility
- 21 Years to 32 Years
- Enrollment
- 22 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 1996 – 1997
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
Search Results
Search by objective public record fields.
Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.
These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Showing 1–14
of 14
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Contraception, Inhalation of Nitrous Oxide
- Interventions
- In-office Transcervical Sterilization (Essure®), Standard Oral pain medications, Intramuscular Ketorolac, Placebo pills, Oxygen, Nitrous Oxide
- Procedure · Drug · Other
- Lead sponsor
- University of New Mexico
- Other
- Eligibility
- 21 Years and older · Female only
- Enrollment
- 72 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2014 – 2015
- U.S. locations
- 1
- States / cities
- Albuquerque, New Mexico
- Conditions
- Opioid-Related Disorders, Substance-Related Disorders
- Interventions
- 10% N2O, 20% N2O, 30% N2O, 40% N2O
- Drug
- Lead sponsor
- University of Chicago
- Other
- Eligibility
- 21 Years to 37 Years
- Enrollment
- 16 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 1994 – 1996
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- Conditions
- COVID-19, Acute Respiratory Distress Syndrome, Acute Respiratory Failure
- Interventions
- Sodium Nitrite, Normal Saline
- Drug
- Lead sponsor
- Hope Pharmaceuticals
- Industry
- Eligibility
- 18 Years and older
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020
- U.S. locations
- 2
- States / cities
- Tampa, Florida • Fort Worth, Texas
- Conditions
- Cardiovascular Abnormalities
- Interventions
- B12-Folic Acid, nitrous oxide, Nitrous oxide (NO) and placebo, Placebo, oxygen nitrogen
- Drug · Other
- Lead sponsor
- Washington University School of Medicine
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 63 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2010
- U.S. locations
- 1
- States / cities
- St Louis, Missouri
- Conditions
- Opioid-Related Disorders, Substance-Related Disorders
- Interventions
- 30% N2O, 0.2% isoflurane, 0.4% isoflurane, 100% oxygen
- Drug · Other
- Lead sponsor
- University of Chicago
- Other
- Eligibility
- 21 Years to 32 Years
- Enrollment
- 10 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 1994 – 1996
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- Conditions
- Rib Fracture, Rib Fracture Multiple
- Interventions
- Cryoneurolysis, Local anesthetic peripheral nerve block, Sham Cryoneurolysis, Sham peripheral nerve block
- Device · Procedure
- Lead sponsor
- University of California, San Diego
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 120 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2028
- U.S. locations
- 5
- States / cities
- La Jolla, California • Bethesda, Maryland • Boston, Massachusetts + 1 more
- Conditions
- Contraceptive Devices, Long-Acting Reversible Contraception, Analgesia, Adolescent Health, Gynecology
- Interventions
- Nitrous oxide gas for inhalation, Oxygen Gas for Inhalation
- Drug
- Lead sponsor
- Boston Children's Hospital
- Other
- Eligibility
- 14 Years to 24 Years · Female only
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Opioid-Related Disorders, Substance-Related Disorders
- Interventions
- 15 % Nitrous oxide, 0.3 % Sevoflurane, 30% Nitrous oxide, 0.6% Sevoflurane, Placebo
- Drug · Other
- Lead sponsor
- University of Chicago
- Other
- Eligibility
- 21 Years to 39 Years
- Enrollment
- 12 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 1996 – 1997
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- Conditions
- Opioid-Related Disorders, Substance-Related Disorders
- Interventions
- 30% Nitrous oxide, 0.4% Sevoflurane, 0.2% sevoflurane, Placebo
- Drug · Other
- Lead sponsor
- University of Chicago
- Other
- Eligibility
- Not listed
- Enrollment
- 20 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 1996 – 1999
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- Conditions
- Overactive Bladder, Neurogenic Bladder, Urge Incontinence, Pain, Urinary Incontinence, Urinary Bladder, Overactive, Urinary Bladder, Neurogenic, Urinary Bladder Neurogenesis, Urinary Incontinence, Urge, Pelvic Floor Disorders
- Interventions
- Pro-Nox Nitrous Oxide/Oxygen Delivery System, Standard Care for Bladder Botox Injection, Sham Mask
- Drug · Other
- Lead sponsor
- TriHealth Inc.
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 96 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026
- U.S. locations
- 2
- States / cities
- Cincinnati, Ohio
- Conditions
- Alcohol-Related Disorders, Opioid-Related Disorders, Substance-Related Disorders
- Interventions
- 30% Nitrous oxide, Placebo, 0.2% sevoflurane, 0.4% sevoflurane, 0.6% sevoflurane
- Drug · Other
- Lead sponsor
- University of Chicago
- Other
- Eligibility
- Not listed
- Enrollment
- 14 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 1997 – 1998
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- Conditions
- Depression, Major Depressive Disorder
- Interventions
- Nitrous Oxide, Placebo
- Drug
- Lead sponsor
- Bayside Health
- Government
- Eligibility
- 18 Years and older
- Enrollment
- 81 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2023
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- Conditions
- Abortion in First Trimester
- Interventions
- Nitrous oxide administration
- Other
- Lead sponsor
- University of New Mexico
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 140 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012 – 2015
- U.S. locations
- 1
- States / cities
- Albuquerque, New Mexico