- 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
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 are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Showing 1–24
of 121
matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
- Conditions
- Low Back Pain, Radiating Pain
- Interventions
- Entonox, Oxygen
- Other
- Lead sponsor
- The Cleveland Clinic
- Other
- Eligibility
- 18 Years to 80 Years
- Enrollment
- 78 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2013
- U.S. locations
- 1
- States / cities
- Cleveland, Ohio
- Conditions
- Nitric Oxide, Endothelium-Derived Relaxing Factor, Healthy
- Interventions
- L-NMMA and Sodium Nitrite
- Drug
- Lead sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
- NIH
- Eligibility
- Not listed
- Enrollment
- 42 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2002 – 2003
- U.S. locations
- 1
- States / cities
- Bethesda, Maryland
- 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
- 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
- Situational Anxiety, Behavior
- Interventions
- Therapy dog presence, Standard-of-care basic behavior guidance
- Behavioral
- Lead sponsor
- University of Michigan
- Other
- Eligibility
- 4 Years to 12 Years
- Enrollment
- 25 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2027
- U.S. locations
- 1
- States / cities
- Ann Arbor, Michigan
- 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
- Barrett's Esophagus, Esophageal Squamous Dysplasia, Esophageal Cancer
- Interventions
- CryoBalloon
- Device
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 58 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2025
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- 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
- Vasectomy
- Interventions
- Nitrous Oxide, Oxygen
- Drug
- Lead sponsor
- Alexandra J. Berger Eberhardt, MD
- Other
- Eligibility
- 18 Years to 85 Years · Male only
- Enrollment
- 50 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2030
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Amnesia
- Interventions
- Nitrous Oxide 0%, Nitrous oxide 33%, Nitrous oxide 66%
- Drug
- Lead sponsor
- State University of New York at Buffalo
- Other
- Eligibility
- 6 Years to 12 Years
- Enrollment
- 90 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013
- U.S. locations
- 1
- States / cities
- Buffalo, New York
- 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
- Coronary Disease, Myocardial Ischemia
- Interventions
- Nitric Oxide and INOpulse Delivery System
- Drug
- Lead sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
- NIH
- Eligibility
- Not listed
- Enrollment
- 25 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2001 – 2003
- U.S. locations
- 1
- States / cities
- Bethesda, Maryland
- Conditions
- Post-Amputation Phantom Limb Pain
- Interventions
- Cryoneurolysis, Sham Comparator
- Device
- Lead sponsor
- University of California, San Diego
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 144 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2022
- U.S. locations
- 6
- States / cities
- Palo Alto, California • San Diego, California • Gainesville, Florida + 2 more
- 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
- Obstructive Sleep Apnea
- Interventions
- One handed mask airway, switch to two hands, Two handed mask airway + jaw thrust, Two handed mask airway, switch to one hand
- Procedure
- Lead sponsor
- Nemours Children's Clinic
- Other
- Eligibility
- 1 Year to 8 Years
- Enrollment
- 60 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2020
- U.S. locations
- 1
- States / cities
- Wilmington, Delaware
- 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
- Conditions
- Asthma
- Interventions
- Antipyrine-benzocaine otic solution, Glycerin with Oxyquinoline Sulfate
- Drug · Other
- Lead sponsor
- Global United Pharmaceutical Corporation
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 50 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023
- U.S. locations
- 1
- States / cities
- Augusta, Georgia
- 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
- 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
- Alcohol-Related Disorders, Opioid-Related Disorders, Substance-Related Disorders
- Interventions
- 0% N2O and 10% N2O, 0% N2O and 20% N2O, 0% N2O and 30% N2O, 0% N2O and 40% N2O
- Drug
- Lead sponsor
- University of Chicago
- Other
- Eligibility
- 21 Years to 37 Years
- Enrollment
- 19 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 1995 – 1997
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- Conditions
- Endoscopy, Colonoscopy
- Interventions
- 5% inhaled nitrous oxide, 50% inhaled nitrous oxide
- Drug
- Lead sponsor
- Stanford University
- Other
- Eligibility
- 18 Years and older
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2025
- U.S. locations
- 1
- States / cities
- Stanford, California
- Conditions
- Treatment- Resistant Bipolar Disorder, Bipolar Disorder, Bipolar Depressive Disorder
- Interventions
- Nitrous Oxide, Placebo
- Drug
- Lead sponsor
- Washington University School of Medicine
- Other
- Eligibility
- 18 Years to 75 Years
- Enrollment
- 1 participant
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016
- U.S. locations
- 1
- States / cities
- St Louis, Missouri