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ClinicalTrials.gov public records Last synced Oct 10, 2026, 12:57 PM EDT

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Showing 49–72 of 134 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: N-Acetylcysteine (NAC) Treatment Clear all
Completed Phase 3 Interventional

Prospective Treatment Efficacy in IPF Using Genotype for Nac Selection (PRECISIONS) Trial

NCT04300920
View directory record Official record
Conditions
Idiopathic Pulmonary Fibrosis
Interventions
N-acetyl cysteine, Placebo
Drug
Lead sponsor
Fernando J Martinez
Other
Eligibility
40 Years and older
Enrollment
202 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
25
States / cities
Tucson, Arizona • Los Angeles, California • Stanford, California + 22 more
Source: ClinicalTrials.gov public record
Updated Mar 20, 2026 · Synced Oct 10, 2026, 12:57 PM EDT
Terminated Phase 2 Interventional Results available

N-Acetylcysteine in Adjunct to DBT for the Treatment of Self-Injurious Behavior in BPD

NCT00539188
View directory record Official record
Conditions
Borderline Personality Disorder, Self-Injurious Behavior
Interventions
N-Acetylcysteine, placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 15, 2020 · Synced Oct 10, 2026, 12:57 PM EDT
Completed Phase 2 Interventional Results available

N-acetylcysteine Plus Naltrexone for the Treatment of Alcohol Dependence

NCT01214083
View directory record Official record
Conditions
Alcoholism
Interventions
N-acetylcysteine + high-dose naltrexone (150 mg), High-dose naltrexone (150 mg) alone, Low-dose naltrexone (50 mg) alone
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 65 Years
Enrollment
111 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
2
States / cities
West Haven, Connecticut • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 8, 2020 · Synced Oct 10, 2026, 12:57 PM EDT
Completed No phase listed Observational

Treatment of Acetaminophen Toxicity With N-acetylcysteine

NCT00725179
View directory record Official record
Conditions
Acetaminophen Toxicity
Interventions
Not listed
Lead sponsor
Akron Children's Hospital
Other
Eligibility
Not listed
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
1
States / cities
Akron, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 9, 2011 · Synced Oct 10, 2026, 12:57 PM EDT
Completed Not applicable Interventional

The Effect of Administration on N-Acetylcysteine on Serum Creatinine Levels in Patients With Chronic Kidney Disease

NCT00498342
View directory record Official record
Conditions
Chronic Kidney Disease
Interventions
N-acetylcysteine
Drug
Lead sponsor
University of Vermont
Other
Eligibility
18 Years to 89 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Feb 18, 2008 · Synced Oct 10, 2026, 12:57 PM EDT
Completed Phase 2 Interventional Results available

Effectiveness of N-Acetylcysteine (NAC) in Treating Cocaine Dependent Individuals - 1

NCT00218491
View directory record Official record
Conditions
Cocaine Dependence
Interventions
N-Acetylcysteine, Matching Placebo
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
111 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jan 15, 2019 · Synced Oct 10, 2026, 12:57 PM EDT
Completed Phase 2 Interventional

Intravenous N-Acetylcysteine for the Treatment of Acute Ischemic Stroke

NCT04918719
View directory record Official record
Conditions
Acute Ischemic Stroke
Interventions
Acetylcysteine, Dextrose in Water
Drug
Lead sponsor
Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Torrance, California
Source: ClinicalTrials.gov public record
Updated Feb 19, 2026 · Synced Oct 10, 2026, 12:57 PM EDT
Completed Phase 3 Interventional Results available

Prevention of Serious Adverse Events Following Angiography

NCT01467466
View directory record Official record
Conditions
Acute Renal Failure, Kidney Disease, Coronary Artery Disease
Interventions
IV isotonic saline, IV isotonic bicarbonate, N-acetylcysteine, Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
5,177 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
35
States / cities
Tucson, Arizona • Little Rock, Arkansas • Palo Alto, California + 32 more
Source: ClinicalTrials.gov public record
Updated Nov 5, 2025 · Synced Oct 10, 2026, 12:57 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

The Effect of N-Acetyl Cysteine on Cortical Erosion in Early Stage Schizophrenia

NCT01339858
View directory record Official record
Conditions
Schizophrenia, Psychotic Disorder NOS, Schizoaffective Disorder, Schizophreniform
Interventions
N-Acetyl Cysteine, sugar pill
Drug · Other
Lead sponsor
Indiana University
Other
Eligibility
16 Years to 35 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
2
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated May 8, 2019 · Synced Oct 10, 2026, 12:57 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 26, 2025 · Synced Oct 10, 2026, 12:57 PM EDT
Completed Phase 3 Interventional Results available

Achieving Cannabis Cessation-Evaluating N-Acetylcysteine Treatment

NCT01675661
View directory record Official record
Conditions
Cannabis Dependence
Interventions
N-Acetylcysteine, Placebo
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 50 Years
Enrollment
302 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
6
States / cities
Los Angeles, California • New Haven, Connecticut • Lexington, Kentucky + 3 more
Source: ClinicalTrials.gov public record
Updated May 24, 2018 · Synced Oct 10, 2026, 12:57 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 10, 2026, 12:57 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 17, 2026 · Synced Oct 10, 2026, 12:57 PM EDT
Completed No phase listed Observational

Treatment of APAP Toxicity With IV and Oral NAC 2008-2011

NCT01465542
View directory record Official record
Conditions
Acetaminophen Toxicity
Interventions
Not listed
Lead sponsor
Akron Children's Hospital
Other
Eligibility
1 Month to 21 Years
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
1
States / cities
Akron, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 25, 2023 · Synced Oct 10, 2026, 12:57 PM EDT
Withdrawn Phase 2Phase 3 Interventional

Treatment of Hemodialysis Catheter-Related Bacteremia

NCT02040818
View directory record Official record
Conditions
Hemodialysis Catheter-related Bacteremia
Interventions
tigecycline, N-acetylcysteine, heparin combination, guide-wire exchange
Drug · Device
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 100 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2013
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Oct 8, 2015 · Synced Oct 10, 2026, 12:57 PM EDT
Completed Phase 2 Interventional Results available

N-Acetylcysteine in Biliary Atresia After Kasai Portoenterostomy

NCT03499249
View directory record Official record
Conditions
Biliary Atresia
Interventions
N-Acetyl cysteine
Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
0 Days to 90 Days
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 26, 2024 · Synced Oct 10, 2026, 12:57 PM EDT
Completed Phase 2 Interventional Results available

Repeated-Dose Oral N-acetylcysteine for the Treatment of Parkinson's Disease

NCT02212678
View directory record Official record
Conditions
Parkinson Disease
Interventions
N-acetylcysteine capsule
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated May 16, 2019 · Synced Oct 10, 2026, 12:57 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Efficacy and Safety of Rifaximin With NAC in IBS-D

NCT04557215
View directory record Official record
Conditions
Irritable Bowel Syndrome With Diarrhea
Interventions
Rifaximin, N-acetylcysteine, Placebo
Drug
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years to 75 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 28, 2023 · Synced Oct 10, 2026, 12:57 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Antioxidant Treatment of Type 2 Diabetes

NCT00609102
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Placebo, n-aceylcysteine
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 70 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2013
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Dec 24, 2014 · Synced Oct 10, 2026, 12:57 PM EDT
Completed Early Phase 1 Interventional

Brain Imaging to Understand the Role of Inflammation in N-Acetyl Cysteine (NAC) Treatment of Bipolar Depression

NCT03730064
View directory record Official record
Conditions
Bipolar Disorder, Depression
Interventions
N-acetyl cysteine (NAC)
Drug
Lead sponsor
Martin Lan
Other
Eligibility
18 Years to 60 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 5, 2021 · Synced Oct 10, 2026, 12:57 PM EDT
Completed Phase 2 Interventional Results available

N-Acetylcysteine and Milk Thistle for Treatment of Diabetic Nephropathy

NCT01265563
View directory record Official record
Conditions
Diabetic Nephropathy, Proteinuria, Oxidative Stress
Interventions
N-acetylcysteine placebo and silibin placebo, N-acetylcysteine active and silibin placebo, N-acetylcysteine placebo and silibin active, N-acetylcysteine active and silibin active, N-acetylcysteine active + high-dose silibin active
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 76 Years
Enrollment
108 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Oct 19, 2018 · Synced Oct 10, 2026, 12:57 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Early Study of N-Acetylcysteine to Treat Deliberate Self-Harm in Adolescents

NCT01111734
View directory record Official record
Conditions
Deliberate Self Harm
Interventions
N-Acetylcysteine, fMRI
Dietary Supplement · Drug
Lead sponsor
University of Minnesota
Other
Eligibility
13 Years to 21 Years
Enrollment
67 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated May 1, 2019 · Synced Oct 10, 2026, 12:57 PM EDT
Completed Phase 1Phase 2 Interventional Results available

N-acetylcysteine in Alcohol Dependence

NCT00568087
View directory record Official record
Conditions
Alcoholism
Interventions
N-acetylcysteine, Placebo
Drug
Lead sponsor
Minneapolis Veterans Affairs Medical Center
Federal
Eligibility
18 Years to 65 Years
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 18, 2020 · Synced Oct 10, 2026, 12:57 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

The Effect of Minocycline and N-acetylcysteine for the Treatment of Fibromyalgia

NCT04594733
View directory record Official record
Conditions
Fibromyalgia
Interventions
minocycline (200 mg daily) and NAC (1200 mg daily) followed by placebo, Placebo followed by minocycline (200 mg daily) and NAC (1200 mg daily)
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older · Female only
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jan 30, 2024 · Synced Oct 10, 2026, 12:57 PM EDT