2026 data ClinicalTrials.gov official source

Conditions: N

Compiled by PlainTrial · January 1, 2026

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

1,012 conditions starting with "N"

Showing 301–350 of 1,012

Condition	Trials	Recruiting
Nerve Sheath Tumors	1	-
Nerve Trauma	1	1
Nerve; Disorder, Sympathetic	1	-
NERVES	1	1
Nervous System	1	-
Nervous System Disease	4	1
Nervous System Diseases	24	8
Nervous System Diseases (C10 Unique ID D009422)	1	1
Nervous System Malformations	1	1
Nervous System Neoplasms	2	-
NET	2	1
Netherton Syndrome	7	4
NETs	1	1
Neural Activity	1	1
Neural Dynamics of the Acquisition and Retention of Fear Learning and Active Avoidance Learning	1	-
Neural Tube Defects	6	4
Neuralgia	6	2
Neuralgia, Postherpetic	1	-
Neuro-Degenerative Disease	12	6
Neuro-PASC	1	1
Neurobehavioral Components of Reward and Loss Valuation	1	1
Neurobehavioral Manifestation	2	1
Neurobehavioral Manifestations	6	2
Neurobiology OF Cancer	1	1
Neuroblastoma	98	38
Neuroblastoma (NB)	1	-
Neuroblastoma (NBL)	1	1
Neuroblastoma Recurrent	3	2
Neurocardiogenic Syncope	1	-
Neurocognitive Correlates of Eating Habits	1	1
Neurocognitive Deficit	1	1
Neurocognitive Disease	1	-
Neurocognitive Disorders	9	4
Neurocognitive Disorders, Mild	1	1
Neurocognitive Dysfunction	7	4
Neurocognitive Function	4	4
Neurocognitive Improvement	1	-
Neurocutaneous Melanocytosis	1	1
Neurocysticercosis	3	1
Neurodegeneration	2	2
Neurodegenerative Diseases	13	8
Neurodegenerative Disorders	2	2
Neurodermatitis	1	-
Neurodevelopment Outcome	1	1
Neurodevelopmental Abnormality	3	-
Neurodevelopmental Disorder	1	1
Neurodevelopmental Disorder With or Without Variable Brain Abnormalities	1	-
Neurodevelopmental Disorders	28	17
Neurodevelopmental Outcomes	1	1
Neuroectodermal Tumor, Primitive	1	-

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