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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Ventilatory Depression Clear all
Completed Early Phase 1 Interventional Accepts healthy volunteers

Use of Intrathecal Hydromorphone in Elective Cesarean Deliveries

NCT01866254
View directory record Official record
Conditions
Pain
Interventions
Hydromorphone, Morphine
Drug
Lead sponsor
Grace Shih, MD
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jan 2, 2019 · Synced Sep 23, 2026, 5:03 PM EDT
Completed No phase listed Observational

Respiratory Control and Narcotic Effects

NCT04047550
View directory record Official record
Conditions
Ventilatory Depression, Opioid Intoxication, Opioid Toxicity
Interventions
Ventilatory chemosensitivity
Diagnostic Test
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 26, 2020 · Synced Sep 23, 2026, 5:03 PM EDT
Completed No phase listed Observational

Patient Controlled Analgesia Pharmacogenetic Study

NCT01731873
View directory record Official record
Conditions
Pain
Interventions
Not listed
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
Up to 18 Years
Enrollment
182 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2019
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 2, 2020 · Synced Sep 23, 2026, 5:03 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Dexmedetomidine for the Control of Post-Operative Pain in Thoracotomy Patients

NCT00345384
View directory record Official record
Conditions
Post-operative Pain, Respiratory Depression
Interventions
Dexmedetomidine, Placebo (Normal Saline)
Drug · Other
Lead sponsor
Baylor Research Institute
Other
Eligibility
18 Years to 85 Years
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Feb 7, 2016 · Synced Sep 23, 2026, 5:03 PM EDT
Recruiting No phase listed Observational

Cardiopulmonary Exercise Testing and Oscillometry for the Evaluation of Dyspnea

NCT06554353
View directory record Official record
Conditions
Breathing, Mouth, Lung Function Decreased, Dyspnea, Shortness of Breath
Interventions
Oscillometer
Device
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older
Enrollment
50 participants
Timeline
2024 – 2026
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Sep 23, 2026, 5:03 PM EDT
Completed Phase 4 Interventional Results available

Sugammadex vs Placebo to Prevent Residual Neuromuscular Block

NCT02728726
View directory record Official record
Conditions
General Surgery
Interventions
Sugammadex, Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 100 Years
Enrollment
260 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
2
States / cities
Jacksonville, Florida • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 13, 2022 · Synced Sep 23, 2026, 5:03 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Effect of Selective Serotonin Reuptake Inhibitors (SSRIs) and an Opioid on Ventilation

NCT05470465
View directory record Official record
Conditions
Hypercapnia, Ventilatory Depression
Interventions
Placebo and Oxycodone, Paroxetine and Oxycodone, Escitalopram and Oxycodone
Drug
Lead sponsor
Food and Drug Administration (FDA)
Federal
Eligibility
18 Years to 50 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
West Bend, Wisconsin
Source: ClinicalTrials.gov public record
Updated May 21, 2025 · Synced Sep 23, 2026, 5:03 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

ENA-001 for Opioid Induced Respiratory Depression

NCT06967259
View directory record Official record
Conditions
Respiratory Depression
Interventions
ENA-001, Placebo Comparator
Drug
Lead sponsor
Enalare Therapeutics Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
2
States / cities
Miami, Florida • Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Sep 15, 2026 · Synced Sep 23, 2026, 5:03 PM EDT
Completed Not applicable Interventional

Recovery of Ventilation After Anesthesia for Laparoscopic Nephrectomy

NCT04723433
View directory record Official record
Conditions
Ventilatory Depression, Postoperative Respiratory Complication
Interventions
Oxygen gas -Conservative, Oxygen gas -Liberal
Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 70 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Sep 13, 2021 · Synced Sep 23, 2026, 5:03 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Wearable Wireless Respiratory Monitoring System That Detects and Predicts Opioid Induced Respiratory Depression

NCT06442488
View directory record Official record
Conditions
Respiratory Insufficiency, Clinical Deterioration
Interventions
Respiratory Monitoring System
Device
Lead sponsor
Jeffrey Joseph
Other
Eligibility
18 Years to 70 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 14, 2025 · Synced Sep 23, 2026, 5:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of a 10 Component Dietary Supplement on Health and the Quality of Life

NCT03052491
View directory record Official record
Conditions
Blood Pressure, HDL Low, Stress, Lung Function Decreased, Quality of Life, Energy Supply; Deficiency, Concentration Ability Impaired, Joint Instability, Immune Deficiency
Interventions
Stem Cell 100+
Dietary Supplement
Lead sponsor
Centagen, Inc.
Industry
Eligibility
35 Years to 80 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Feb 13, 2017 · Synced Sep 23, 2026, 5:03 PM EDT
Completed No phase listed Observational

Evaluating the Use of a Device Called Impulse Oscillometry in Participants With Vocal Cord Disorders or Asthma

NCT05246930
View directory record Official record
Conditions
Breathing, Mouth, Lung Function Decreased, Vocal Cord Dysfunction, Laryngeal Obstruction, Asthma
Interventions
Impulse Oscillometer
Device
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older
Enrollment
43 participants
Timeline
2022 – 2024
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Dec 17, 2024 · Synced Sep 23, 2026, 5:03 PM EDT
Completed No phase listed Observational

Dietary Intake in Adults From the GA2LEN Folow-up Survey

NCT03251157
View directory record Official record
Conditions
Asthma, Lung Function Decreased, Food Allergy, Allergic Sensitisation, Allergic Rhinitis, COPD, Atopy
Interventions
Dietary intake of various nutrients, foods and biocompounds
Other
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
15 Years to 75 Years
Enrollment
3,500 participants
Timeline
2007 – 2010
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 15, 2017 · Synced Sep 23, 2026, 5:03 PM EDT
Completed No phase listed Observational

Advanced Prediction of Respiratory Depression Episode Using the Linshom Continuous Predictive Respiratory Sensor

NCT06744790
View directory record Official record
Conditions
Post Surgical Respiratory Failure, Respiratory Complication
Interventions
Linshom Continuous Predictive Respiratory Monitoring
Device
Lead sponsor
Linshom Medical, Inc.
Industry
Eligibility
18 Years and older
Enrollment
320 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 30, 2026 · Synced Sep 23, 2026, 5:03 PM EDT
Enrolling by invitation Not applicable Interventional

Respiratory Monitoring System That Detects & Predicts OIRD

NCT07217197
View directory record Official record
Conditions
Respiration Disorders
Interventions
Study to evaluate a Respiratory Monitoring System (RMS) with a Tracheal Sound Sensor (TSS) for detecting and predicting opioid induced respiratory Depression (OIRD).
Device
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 8, 2026 · Synced Sep 23, 2026, 5:03 PM EDT
Terminated Not applicable Interventional Results available

Study of Respiratory Depression When Using a Hydromorphone Pain Protocol

NCT01784991
View directory record Official record
Conditions
Pain, Respiratory Depression
Interventions
Hydromorphone, Usual care group
Drug
Lead sponsor
Albert Einstein Healthcare Network
Other
Eligibility
60 Years to 90 Years
Enrollment
116 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 18, 2020 · Synced Sep 23, 2026, 5:03 PM EDT
Completed No phase listed Observational

Pharmacogenetic Morphine Spine Study

NCT01839461
View directory record Official record
Conditions
Pain
Interventions
Not listed
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
10 Years to 18 Years
Enrollment
137 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2019
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 6, 2019 · Synced Sep 23, 2026, 5:03 PM EDT
Not listed No phase listed Observational

Incidence OIRD Medical and Trauma Patients

NCT03948880
View directory record Official record
Conditions
Respiratory Depression, Sedation
Interventions
Not listed
Lead sponsor
Community Health System
Other
Eligibility
18 Years to 89 Years
Enrollment
101 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Fresno, California
Source: ClinicalTrials.gov public record
Updated Jul 30, 2019 · Synced Sep 23, 2026, 5:03 PM EDT
Completed Not applicable Interventional Results available

Study of the Effect of the Drug Gabapentin on Postoperative Pain and Incidence of Postoperative Nausea and Vomiting

NCT00886236
View directory record Official record
Conditions
Obesity, Morbid, Postoperative Pain, Postoperative Nausea and Vomiting
Interventions
Gabapentin, Placebo
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 80 Years
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Sep 19, 2018 · Synced Sep 23, 2026, 5:03 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Hydromorphone Pharmacokinetic-Pharmacodynamic Fingerprint

NCT01123486
View directory record Official record
Conditions
Pain, Ventilatory Depression
Interventions
hydromorphone
Drug
Lead sponsor
Northwestern University
Other
Eligibility
21 Years to 30 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 21, 2015 · Synced Sep 23, 2026, 5:03 PM EDT
Completed No phase listed Observational

Multicenter Perioperative Opioid Pharmacogenetic Study

NCT01495611
View directory record Official record
Conditions
Pain
Interventions
Not listed
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
6 Years to 17 Years
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2017
U.S. locations
15
States / cities
Los Angeles, California • Palo Alto, California • Denver, Colorado + 12 more
Source: ClinicalTrials.gov public record
Updated Jan 30, 2017 · Synced Sep 23, 2026, 5:03 PM EDT
Recruiting Not applicable Interventional

Carbon Dioxide (CO2) Chemosensitivity and SUDEP

NCT04134754
View directory record Official record
Conditions
Epilepsy, SUDEP
Interventions
6% Carbon dioxide/50% oxygen/balance nitrogen mixture
Other
Lead sponsor
University of Iowa
Other
Eligibility
18 Years to 99 Years
Enrollment
335 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2029
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Sep 23, 2026, 5:03 PM EDT
Completed No phase listed Observational

Critical Respiratory Events in Children Requiring Naloxone: Naloxone Use as Opioid Safety Measure

NCT01860885
View directory record Official record
Conditions
Opioid Induced Respiratory Depression
Interventions
Not listed
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
1 Day and older
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated May 22, 2013 · Synced Sep 23, 2026, 5:03 PM EDT
Completed No phase listed Observational Results available

Effect of Opioids on Ventilation in Children With Obstructive Sleep Apnea

NCT03938259
View directory record Official record
Conditions
Respiratory Depression, Obstructive Sleep Apnea
Interventions
Fentanyl
Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
2 Years to 8 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 25, 2024 · Synced Sep 23, 2026, 5:03 PM EDT