Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
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.

Clear filters
ClinicalTrials.gov public records Last synced Sep 2, 2026, 5:58 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: NAC Clear all
Active, not recruiting Not applicable Interventional Accepts healthy volunteers Results available

Feasibility of Deep Brain Stimulation as a Novel Treatment for Refractory Opioid Use Disorder

NCT03950492
View directory record Official record
Conditions
Opioid-Related Disorders
Interventions
Deep Brain Simulator
Device
Lead sponsor
West Virginia University
Other
Eligibility
21 Years to 50 Years
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2026
U.S. locations
1
States / cities
Morgantown, West Virginia
Source: ClinicalTrials.gov public record
Updated Jul 27, 2025 · Synced Sep 2, 2026, 5:58 PM EDT
Enrolling by invitation Not applicable Interventional

Physiological Effects of N-Acetyl Cysteine in Patients With Multiple Sclerosis

NCT03032601
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
N-acetyl Cysteine
Dietary Supplement
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 16, 2025 · Synced Sep 2, 2026, 5:58 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Study of ABT-510 (Thrombospondin Analogue) in Patients With Advanced Head and Neck Cancer

NCT00113334
View directory record Official record
Conditions
Head and Neck Cancer
Interventions
ABT-510
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 6, 2014 · Synced Sep 2, 2026, 5:58 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Behavioral Effects of Drugs (Inpatient): 43 (Opioids, Cocaine, n-Acetylcysteine)

NCT05610072
View directory record Official record
Conditions
Cocaine Use Disorder, Opioid Use Disorder, Stimulant Use Disorder
Interventions
n-acetylcysteine, Hydromorphone, Placebo n-acetylcystine, Placebo hydromorphone
Drug
Lead sponsor
William Stoops
Other
Eligibility
18 Years to 55 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
2
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Sep 2, 2026, 5:58 PM EDT
Completed Phase 4 Interventional

Safety of Low Dose IV Contrast CT Scanning in Chronic Kidney Disease

NCT02476526
View directory record Official record
Conditions
Chronic Kidney Disease, Pulmonary Embolism, Renal Artery Stenosis, Pulmonary Cancer
Interventions
Low Volume iso-osmolar non-ionic radio contrast medium, Acetylcysteine Inhalation, Sodium Bicarbonate Solution, 64-MDCT Scanning
Drug · Procedure
Lead sponsor
VA Greater Los Angeles Healthcare System
Federal
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2017
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 27, 2017 · Synced Sep 2, 2026, 5:58 PM EDT
Terminated Phase 2 Interventional Results available

MemoryXL Effects on Mild Cognitive Impairment Patients

NCT00903695
View directory record Official record
Conditions
Mild Cognitive Impairment
Interventions
Memory XL, placebo
Drug
Lead sponsor
University of Oklahoma
Other
Eligibility
55 Years to 85 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
2
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jan 25, 2012 · Synced Sep 2, 2026, 5:58 PM EDT
Completed Phase 2 Interventional Results available

N-Acetylcysteine for Adolescent Alcohol Use Disorder

NCT03707951
View directory record Official record
Conditions
Alcohol Use Disorder
Interventions
N-acetylcysteine, Placebo oral capsule
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
13 Years to 25 Years
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jan 7, 2025 · Synced Sep 2, 2026, 5:58 PM EDT
Completed Phase 2 Interventional Results available

A Study of N-Acetyl Cysteine in Children With Autism

NCT00627705
View directory record Official record
Conditions
Autistic Disorder
Interventions
N-Acetyl Cysteine, Placebo - sugar pill
Drug · Other
Lead sponsor
Stanford University
Other
Eligibility
3 Years to 12 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated May 17, 2017 · Synced Sep 2, 2026, 5:58 PM EDT
Recruiting Phase 4 Interventional

Reducing Perioperative Oxidative Stress to Prevent Postoperative Chronic Pain Following Total Knee Arthroplasty

NCT06083480
View directory record Official record
Conditions
Osteoarthritis, Knee, Total Knee Arthroplasty, Chronic Postsurgical Pain
Interventions
GlyNAC (combination of glycine and n-acetylcysteine), Placebo
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
50 Years and older
Enrollment
148 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 10, 2025 · Synced Sep 2, 2026, 5:58 PM EDT
Terminated Not applicable Interventional Results available

N-Acetylcysteine for Patients With COPD and Chronic Bronchitis

NCT01739790
View directory record Official record
Conditions
COPD, Chronic Bronchitis
Interventions
N-Acetylcysteine, Placebo
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
40 Years to 85 Years
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 12, 2017 · Synced Sep 2, 2026, 5:58 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Role of Acetylcysteine in Creatinine Clearance

NCT00396396
View directory record Official record
Conditions
Creatinine Clearance
Interventions
Acetylcysteine
Drug
Lead sponsor
Eastern Virginia Medical School
Other
Eligibility
18 Years to 79 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2006
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Nov 5, 2006 · Synced Sep 2, 2026, 5:58 PM EDT
Completed Phase 1Phase 2 Interventional

N-acetylcysteine in Intra-amniotic Infection/Inflammation

NCT00397735
View directory record Official record
Conditions
Labor, Premature, Preterm Premature Rupture of the Membranes, Infection, Inflammation, Chorioamnionitis
Interventions
amniocentesis, N-acetylcysteine or placebo
Procedure · Drug
Lead sponsor
Ohio State University
Other
Eligibility
18 Years and older · Female only
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2018
U.S. locations
2
States / cities
New Haven, Connecticut • Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 9, 2018 · Synced Sep 2, 2026, 5:58 PM EDT
Recruiting Phase 2Phase 3 Interventional

Targeting the Neurobiology of RRB in Autism Using N-acetylcysteine: Trial

NCT05664789
View directory record Official record
Conditions
Autism Spectrum Disorder
Interventions
N acetyl cysteine, Placebo
Drug
Lead sponsor
Stanford University
Other
Eligibility
3 Years to 12 Years
Enrollment
144 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Sep 2, 2026, 5:58 PM EDT
Completed Phase 2 Interventional

Study of Expectorant Activity of Oral N-acetylcystein (NAC) in Patients With Stable Chronic Bronchitis

NCT00205647
View directory record Official record
Conditions
Chronic Bronchitis
Interventions
Oral N-acetycystein (NAC)
Drug
Lead sponsor
Wake Forest University
Other
Eligibility
18 Years to 75 Years
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2000
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 5, 2017 · Synced Sep 2, 2026, 5:58 PM EDT
Completed Not applicable Interventional Results available

Effect of Dietary Glycemic Index on Beta-cell Function

NCT01386645
View directory record Official record
Conditions
Impaired Glucose Tolerance, Oxidative Stress, Prediabetes, Impaired Fasting Glucose
Interventions
low glycemic index (LGI) diet, high glycemic index (HGI) diet plus placebo (PLAC), high glycemic index diet plus N-acetylcysteine
Other · Drug
Lead sponsor
Seattle Institute for Biomedical and Clinical Research
Other
Eligibility
18 Years to 65 Years
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2019
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Aug 11, 2020 · Synced Sep 2, 2026, 5:58 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Effect of Sublingually Generated S-nitroso-N-acetylcysteine on Systemic Blood Pressure.

NCT05798481
View directory record Official record
Conditions
Hypertension, Cardiovascular Diseases
Interventions
Mixture of Sodium Nitrite and N-acetylcysteine (NAC) crytals.
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
21 Years to 80 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Nov 25, 2025 · Synced Sep 2, 2026, 5:58 PM EDT
Completed Phase 2 Interventional Results available

Oxidative Stress and Surgical Recovery

NCT04732000
View directory record Official record
Conditions
Surgical Recovery, Pain, Postoperative
Interventions
N-acetyl cysteine, Normal Saline
Drug · Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Apr 29, 2025 · Synced Sep 2, 2026, 5:58 PM EDT
Recruiting Early Phase 1 Interventional

Imaging Acetadote Metabolism in Glioblastoma

NCT07387666
View directory record Official record
Conditions
Glioblastoma, GBM
Interventions
Acetadote
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Sep 2, 2026, 5:58 PM EDT
Completed Phase 2 Interventional Results available

N-Acetyl Cysteine and Aspirin as an Adjunctive Treatment for Bipolar Disorder

NCT01797575
View directory record Official record
Conditions
Bipolar Disorder
Interventions
Aspirin, N-acetyl-cysteine (NAC), Sugar Pill
Drug · Dietary Supplement
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 65 Years
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 29, 2018 · Synced Sep 2, 2026, 5:58 PM EDT
Recruiting Phase 1Phase 2 Interventional

Effect of NAC on Preventing Chemo-Related Cognitive Impairments in Ovarian Ca Pts Treated W/ PBT

NCT04520139
View directory record Official record
Conditions
Ovarian Cancer, Cognitive Impairment
Interventions
N-Acetyl-Cysteine, Placebo
Drug · Other
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years and older · Female only
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Orange, California
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Sep 2, 2026, 5:58 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Dextromethorphan as a Novel Non-opioid Adjunctive Agent for Pain Control in Medication Abortion

NCT03480009
View directory record Official record
Conditions
Abortion in First Trimester
Interventions
Dextromethorphan Hydrobromide, Avicel PH101 (Microcrystalline Cellulose NF) for Compounding, Oxycodone
Drug
Lead sponsor
Study Investigator-Sponsor
Other
Eligibility
18 Years and older · Female only
Enrollment
156 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 5, 2020 · Synced Sep 2, 2026, 5:58 PM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

NAC for Attenuation of COVID-19 Symptomatology

NCT05074121
View directory record Official record
Conditions
Covid19, COVID-19 Pneumonia, COVID-19 Respiratory Infection, COVID-19 Lower Respiratory Infection, SARS-CoV2 Infection, SARS-CoV-2 Acute Respiratory Disease, SARS-Associated Coronavirus as Cause of Disease Classified Elsewhere, Oxidative Stress
Interventions
N-acetylcysteine, Placebo
Drug · Other
Lead sponsor
Cambridge Health Alliance
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Everett, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 6, 2023 · Synced Sep 2, 2026, 5:58 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Antioxidant Therapy With N-acetylcysteine for Children With Neurofibromatosis Type 1

NCT04481048
View directory record Official record
Conditions
Neurofibromatosis 1
Interventions
N-Acetyl cysteine, Placebo
Drug · Other
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
8 Years to 16 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Sep 2, 2026, 5:58 PM EDT
Completed Phase 4 Interventional

A Study to Explore if Long-term Use of Mucinex Can Help With Symptoms in Patients With Stable Chronic Bronchitis.

NCT05843669
View directory record Official record
Conditions
Chronic Bronchitis
Interventions
Guafenesin tablets
Drug
Lead sponsor
American Health Research
Other
Eligibility
40 Years to 90 Years
Enrollment
82 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
2
States / cities
Charlotte, North Carolina • Rock Hill, South Carolina
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced Sep 2, 2026, 5:58 PM EDT