- Conditions
- Depressive Disorder, Major, Depressive Disorder, Treatment-Resistant
- Interventions
- Nitrous Oxide, Placebo gas, MRI
- Drug · Device
- Lead sponsor
- Washington University School of Medicine
- Other
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 60 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2017 – 2027
- U.S. locations
- 1
- States / cities
- St Louis, Missouri
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 1–18
of 18
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Anesthesia, Pain, Amnesia
- Interventions
- Nitrous oxide, Peripheral Nerve Stimulation
- Drug · Device
- Lead sponsor
- Keith M Vogt
- Other
- Eligibility
- 18 Years to 59 Years
- Enrollment
- 34 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2026
- U.S. locations
- 1
- States / cities
- Pittsburgh, Pennsylvania
- Conditions
- Post Traumatic Stress Disorder
- Interventions
- Nitrous Oxide
- Drug
- Lead sponsor
- Stanford University
- Other
- Eligibility
- 18 Years to 80 Years
- Enrollment
- 3 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2020
- U.S. locations
- 1
- States / cities
- Palo Alto, California
- Conditions
- Pain, Stress Incontinence, Female
- Interventions
- Nitrous Oxide + Oxygen Gas (Product), lidocaine gel 2%, Room air
- Drug · Other
- Lead sponsor
- Baylor Research Institute
- Other
- Eligibility
- 18 Years to 100 Years · Female only
- Enrollment
- 2 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2020
- U.S. locations
- 1
- States / cities
- Temple, Texas
- Conditions
- Depressive Disorder, Major, Depressive Disorder, Treatment-Resistant
- Interventions
- Nitrous Oxide 25%, Nitrous Oxide 50%, Placebo Gas
- Drug
- Lead sponsor
- Washington University School of Medicine
- Other
- Eligibility
- 18 Years to 75 Years
- Enrollment
- 24 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2020
- U.S. locations
- 1
- States / cities
- St Louis, Missouri
- Conditions
- Suicidal Ideation, Major Depressive Disorder, Treatment Resistant Depression
- Interventions
- Nitrous oxide gas for inhalation, Placebo
- Drug
- Lead sponsor
- University of Chicago
- Other
- Eligibility
- 18 Years to 65 Years
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- Conditions
- Anesthesia, Tooth Extraction
- Interventions
- Midazolam Hydrochloride, Fentanyl, Ketamine, Propofol injection, Nitrous oxide
- Drug
- Lead sponsor
- Albert Einstein College of Medicine
- Other
- Eligibility
- 16 Years and older
- Enrollment
- 73 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2016 – 2024
- U.S. locations
- 1
- States / cities
- The Bronx, New York
- 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
- 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
- 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, 0.25 g/Kg ethanol, 0.5 g/KG ethanol, 0 g/Kg ethanol
- Drug · Other
- Lead sponsor
- University of Chicago
- Other
- Eligibility
- Not listed
- Enrollment
- 11 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 1997 – 1998
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- Conditions
- Dental Anxiety, Pain
- Interventions
- Nitrous Oxide, Midazolam
- Drug
- Lead sponsor
- Children's Hospital Colorado
- Other
- Eligibility
- 3 Years to 8 Years
- Enrollment
- 150 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2021
- U.S. locations
- 1
- States / cities
- Aurora, Colorado
- Conditions
- Fibromyalgia, Central Neuropathic Pain
- Interventions
- Nitrous oxide gas for inhalation, Placebo
- Drug
- Lead sponsor
- University of Chicago
- Other
- Eligibility
- 18 Years to 75 Years
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021 – 2026
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- Conditions
- Major Depressive Disorder, Treatment Resistant Depression
- Interventions
- Nitrous oxide gas for inhalation, Placebo
- Drug
- Lead sponsor
- University of Chicago
- Other
- Eligibility
- 18 Years and older
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021 – 2026
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- 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
- 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
- Safety and Efficacy of Intranasal Dexmedetomidine
- Interventions
- Dexmedetomidine, Midazolam Hydrochloride, Nitrous Oxide
- Drug
- Lead sponsor
- Bon Secours Pediatric Dental Associates
- Other
- Eligibility
- 3 Years to 6 Years
- Enrollment
- 100 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2017 – 2018
- U.S. locations
- 1
- States / cities
- Richmond, Virginia
- Conditions
- Major Depressive Disorder, Depression, Mood Disorders, Suicidal Ideation
- Interventions
- Nitrous Oxide, Placebo gas
- Drug
- Lead sponsor
- Washington University School of Medicine
- Other
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 50 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2026
- U.S. locations
- 1
- States / cities
- St Louis, Missouri