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ClinicalTrials.gov public records Last synced Oct 6, 2026, 11:46 PM EDT

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Showing 121–144 of 228 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: N-Acetyl Cysteine Clear all
Completed Phase 1 Interventional

Study of the Safety and Tolerability of ALTH12 Versus Mesalamine Enema in Subjects With Left-Sided Ulcerative Colitis

NCT01020708
View directory record Official record
Conditions
Ulcerative Colitis
Interventions
mesalamine, ALTH12-1:4, ALTH12-2:4
Drug
Lead sponsor
Altheus Therapeutics, Inc.
Industry
Eligibility
18 Years to 64 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Mar 29, 2011 · Synced Oct 6, 2026, 11:46 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 30, 2025 · Synced Oct 6, 2026, 11:46 PM EDT
Completed Phase 2 Interventional Results available

N-Acetyl Cysteine in Pathologic Skin Picking

NCT01063348
View directory record Official record
Conditions
Pathologic Skin Picking, Neurotic Excoriation, Psychogenic Excoriation, Dermatillomania
Interventions
N-Acetyl Cysteine, Placebo
Drug
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 64 Years
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 23, 2023 · Synced Oct 6, 2026, 11:46 PM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

Pilot Study: Impact of Biomarker-Guided Dietary Supplementation on Quality-of-Life Measures in Subjects With Chronic Pain

NCT06247813
View directory record Official record
Conditions
Chronic Pain
Interventions
Inflammation Support Formula, Nerve Health Formula, Redox Support Formula
Dietary Supplement
Lead sponsor
Ethos Research & Development
Industry
Eligibility
18 Years to 75 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Newport, Kentucky
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 6, 2026, 11:46 PM EDT
Not listed Not applicable Interventional

N-acetylcysteine in the Treatment of Depressive Symptoms in Bipolar Offspring

NCT02865629
View directory record Official record
Conditions
Depression
Interventions
N-acetyl cysteine
Drug
Lead sponsor
University of Cincinnati
Other
Eligibility
15 Years to 24 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated May 14, 2018 · Synced Oct 6, 2026, 11:46 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

A Prospective, Randomized TrialComparing Oral N-Acetylcysteine and Intravenous Sodium Bicarbonate

NCT00579995
View directory record Official record
Conditions
Nephropathy
Interventions
Oral N-Acetylcysteine, Sodium Bicarbonate
Drug
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2010
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 21, 2023 · Synced Oct 6, 2026, 11:46 PM EDT
Completed Phase 1Phase 2 Interventional

Fatty Liver Disease in Obese Children

NCT02117700
View directory record Official record
Conditions
Obesity, Nonalcoholic Fatty Liver Disease, Cardiovascular Disease
Interventions
N-acetyl cysteine 600 mg once/day, N-acetyl cysteine 600mg twice/day, Placebo twice/day
Dietary Supplement · Other
Lead sponsor
Nemours Children's Clinic
Other
Eligibility
7 Years to 18 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Oct 17, 2022 · Synced Oct 6, 2026, 11:46 PM EDT
Terminated Phase 1Phase 2 Interventional Results available

Pilot Study of a Multi-Drug Regimen for Severe Pulmonary Fibrosis in Hermansky-Pudlak Syndrome

NCT00467831
View directory record Official record
Conditions
Hermansky-Pudlak Syndrome (HPS), Pulmonary Fibrosis, Oculocutaneous Albinism, Platelet Storage Pool Deficiency, Metabolic Disease
Interventions
Losartan, Zileuton, N-Acetylcysteine, Pravastatin, Erythromycin
Drug
Lead sponsor
National Human Genome Research Institute (NHGRI)
NIH
Eligibility
18 Years to 70 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 2, 2013 · Synced Oct 6, 2026, 11:46 PM EDT
Terminated Not applicable Interventional

Vision Preservation and Restoration Following a 6 Month Trial of GlaucoCetin

NCT04784234
View directory record Official record
Conditions
Primary Open Angle Glaucoma
Interventions
GlaucoCetin, Placebo
Dietary Supplement · Other
Lead sponsor
Wills Eye
Other
Eligibility
40 Years to 80 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 23, 2025 · Synced Oct 6, 2026, 11:46 PM EDT
Not listed Not applicable Interventional

N-Acetylcysteine for Patients With COPD and ChronicBronchitis

NCT01599884
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease, Chronic Bronchitis
Interventions
N-acetylcysteine, Oral acetylcysteine
Drug
Lead sponsor
Center for Veterans Research and Education
Other
Eligibility
40 Years to 85 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated May 16, 2012 · Synced Oct 6, 2026, 11:46 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Neuroscience-Informed Treatment Development for Adolescent Alcohol Use

NCT03238300
View directory record Official record
Conditions
Alcohol Drinking, Control
Interventions
N-Acetylcysteine, Placebo Oral Capsule
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
15 Years to 19 Years
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jun 22, 2023 · Synced Oct 6, 2026, 11:46 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Efficacy of N-Acetylcysteine (NAC) in Preventing COVID-19 From Progressing to Severe Disease

NCT04419025
View directory record Official record
Conditions
COVID, Sars-CoV2, SARS-Associated Coronavirus as Cause of Disease Classified Elsewhere, Oxidative Stress
Interventions
N-acetylcysteine
Drug
Lead sponsor
Cambridge Health Alliance
Other
Eligibility
18 Years and older
Enrollment
165 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
4
States / cities
Cambridge, Massachusetts • Everett, Massachusetts • Somerville, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 28, 2021 · Synced Oct 6, 2026, 11:46 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 6, 2017 · Synced Oct 6, 2026, 11:46 PM EDT
Withdrawn Phase 4 Interventional

A Pilot Study Investigating the Efficacy of Minocycline and N-Acetyl Cysteine for Bipolar Depression

NCT02719392
View directory record Official record
Conditions
Bipolar Disorder, Bipolar Depression
Interventions
N-acetylcysteine, Minocycline, Placebo
Dietary Supplement · Drug · Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 24, 2026 · Synced Oct 6, 2026, 11:46 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Use of NAC in Prevention of Hangover Symptoms; Independent Alcohol Consumption Protocol

NCT03104959
View directory record Official record
Conditions
Prevention of Hangover Using N-Acety Cysteine
Interventions
N-acetyl cysteine, placebo
Dietary Supplement · Other
Lead sponsor
St. Luke's Hospital and Health Network, Pennsylvania
Other
Eligibility
21 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Bethlehem, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 11, 2018 · Synced Oct 6, 2026, 11:46 PM EDT
Completed Phase 2 Interventional Results available

A Study of Oxidative Pathways in MS Fatigue

NCT02804594
View directory record Official record
Conditions
Progressive Multiple Sclerosis, Fatigue
Interventions
N-acetyl cysteine, Placebo
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 75 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Oct 6, 2026, 11:46 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Intravenous N-acetylcysteine for the Treatment of Gaucher's Disease and Parkinson's Disease

NCT01427517
View directory record Official record
Conditions
Parkinson's Disease, Gaucher's Disease
Interventions
N-acetylcysteine
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 1, 2019 · Synced Oct 6, 2026, 11:46 PM EDT
Completed Phase 2 Interventional Results available

NAC for Treating Comorbid PTSD and SUD

NCT02911285
View directory record Official record
Conditions
Posttraumatic Stress Disorder (PTSD), Alcohol Use Disorder (AUD), Substance Use Disorder (SUD)
Interventions
N-acetylcysteine, Placebo, Cognitive behavioral therapy
Drug · Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 75 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
2
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated May 19, 2021 · Synced Oct 6, 2026, 11:46 PM EDT
Completed Phase 1Phase 2 Interventional Results available

N-acetylcysteine to Reduce Oxidative Stress and Improve Endothelial Function in HIV-infected Older Adults

NCT01962961
View directory record Official record
Conditions
HIV, Endothelial Dysfunction, Oxidative Stress
Interventions
PharmaNAC (N-acetylcysteine), Matching placebo
Dietary Supplement
Lead sponsor
Indiana University
Other
Eligibility
50 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Feb 8, 2016 · Synced Oct 6, 2026, 11:46 PM EDT
Withdrawn Phase 1 Interventional

N-acetylcysteine Given IV With Cisplatin and Paclitaxel in Patients With Ovarian Cancer

NCT01138137
View directory record Official record
Conditions
Ovarian Carcinoma, Stage 3 or 4, Epithelial Ovarian Carcinoma, Primary Peritoneal Carcinoma
Interventions
Paclitaxel, N-acetylcysteine, Cisplatin
Drug
Lead sponsor
OHSU Knight Cancer Institute
Other
Eligibility
18 Years to 75 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 21, 2017 · Synced Oct 6, 2026, 11:46 PM EDT
Active, not recruiting Phase 2 Interventional

A Study of N-acetylcysteine in Patients With COVID-19 Infection

NCT04374461
View directory record Official record
Conditions
Covid-19
Interventions
N-acetylcysteine, Peripheral Blood
Drug · Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 1, 2026 · Synced Oct 6, 2026, 11:46 PM EDT
Recruiting Phase 2Phase 3 Interventional

BabySTrong II taVNS Feeding Trial

NCT07049952
View directory record Official record
Conditions
Feeding Delays, Neonates and Term Infants
Interventions
taVNS, NAC and taVNS, inactive taVNS, sterile water and inactive taVNS
Device · Combination Product
Lead sponsor
Medical University of South Carolina
Other
Eligibility
39 Weeks to 54 Weeks
Enrollment
88 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Nov 21, 2025 · Synced Oct 6, 2026, 11:46 PM EDT
Active, not recruiting Phase 2 Interventional Accepts healthy volunteers

Treatment of Systemic Lupus Erythematosus (SLE) With N-acetylcysteine

NCT00775476
View directory record Official record
Conditions
Systemic Lupus Erythematosus
Interventions
N-acetylcysteine, Placebo
Drug
Lead sponsor
State University of New York - Upstate Medical University
Other
Eligibility
18 Years and older
Enrollment
290 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2028
U.S. locations
12
States / cities
Los Angeles, California • New Haven, Connecticut • Atlanta, Georgia + 8 more
Source: ClinicalTrials.gov public record
Updated Apr 24, 2026 · Synced Oct 6, 2026, 11:46 PM EDT
Terminated Early Phase 1 Interventional Accepts healthy volunteers

The Role of S-nitrosohemoglobin in Regulating Systemic Blood Flow During Hypoxia and Normoxia

NCT01905696
View directory record Official record
Conditions
Focus is Determination of the Role of SNO-Hb in Forearm Blood Flow Regulation
Interventions
Oral N-acetylcysteine
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years to 40 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 29, 2016 · Synced Oct 6, 2026, 11:46 PM EDT