2026 data ClinicalTrials.gov official source

Conditions: N

Every condition beginning with N that has a registered US clinical trial, with how many studies cover each.

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1,012 conditions starting with "N"

Showing 1–50 of 1,012

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Condition Trials
N of 1 Study Design 1
n Ulcer 1
N-acetylglutamate Synthase (NAGS) Deficiency 1
N/A - Healthy Subjects 2
NAD+ Levels in the Blood 1
NAFLD 27
NAFLD - Non-Alcoholic Fatty Liver Disease 3
NAFLD-HIV 1
NAFLD/MASLD 1
NAGS Deficiency 1
Nail Bed Injury 1
Nail Biting 1
Nail Growth Cessation 1
Nail Patella Syndrome 1
NAION( Non-arteritic Anterior Ischemic Optic Neuropathy) 1
Naloxone 1
Naltrexone 2
nAMD 2
Narcissism 1
Narcolepsy 13
Narcolepsy and Hypersomnia 1
Narcolepsy Type 1 7
Narcolepsy Type 1 (NT1) 3
Narcolepsy Type 2 5
Narcolepsy With Cataplexy 3
Narcolepsy With or Without Cataplexy 1
Narcolepsy Without Cataplexy 1
Narcotic Abuse 1
Narcotic Use 4
Narcotic-Related Disorders 5
Narcotics Consumption 1
Narration 1
Narrative Assessment 1
Narrative Medicine 2
Narrow Maxilla 1
Narrow Maxillary Arch 1
NAS 2
Nasal Airway Obstruction 4
Nasal Alar Collapse, Bilateral 1
Nasal Anesthesia 1
Nasal Bleeding 1
Nasal Breathing 1
Nasal Cavity and Paranasal Sinus Poorly Differentiated Carcinoma 1
Nasal Cavity Cancer 1
Nasal Cavity Carcinoma 2
Nasal Cavity Squamous Cell Carcinoma 1
Nasal Chondromesenchymal Hamartoma 2
Nasal Congestion 1
Nasal Congestion and Inflammations 2
Nasal Congestion Due to Allergic Rhinitis 1

Download the state trial statistics CSV cited on this page: clinicaltrials-gov-us-state-statistics.csv (ClinicalTrials.gov · CC0).

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Data sourced from official public datasets. See our methodology for details.