2026 data ClinicalTrials.gov official source

Conditions: N

Compiled by PlainTrial Editorial, Clinical Trial Intelligence Editorial Team · January 1, 2026

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

1,046 conditions starting with "N"

Showing 551–600 of 1,046

Condition	Trials	Recruiting
Newly Diagnosed Gliosarcoma	1	-
Newly Diagnosed High-Grade Glioma	1	-
Newly Diagnosed MGMT Unmethylated Glioblastoma	1	1
Newly Diagnosed Multiple Myeloma	3	1
Newly Diagnosed Multiple Myeloma (NDMM)	2	1
Newly Diagnosed NSCLC	1	-
Newly Diagnosed or Recurrent Metastatic Melanoma Patients	1	-
Newly Diagnosed Philadelphia (Ph)-Negative B-cell Precursor Acute Lymphoblastic Leukemia (ALL)	1	1
Newly Diagnosed Primary Amyloidosis	1	-
NF1	7	3
NF1 Mutation	2	2
NF1 Mutation Positive Malignant Peripheral Nerve Sheath Tumor	1	-
NF2 Gene Mutation	1	1
NF2-related Schwannomatosis	1	1
NGLY1 Deficiency	2	1
NGS	1	1
NHL	9	4
NHL - Non-Hodgkin&Amp;#39;s Lymphoma	1	1
NHL or HL	1	1
NHL, Adult	1	1
NHL, Relapsed, Adult	1	-
Nicotinamide Adenine Dinucleotide Concentration	1	1
Nicotine	1	-
Nicotine Addiction	11	4
Nicotine Administration & Dosage	1	-
Nicotine Dependance	1	-
Nicotine Dependence	69	19
Nicotine Dependence, Cigarettes	4	2
Nicotine Dependence, Cigarettes, Uncomplicated	1	-
Nicotine Dependence, Other Tobacco Product	2	1
Nicotine Pharmacodynamic Study	1	1
Nicotine Pharmacokinetic Study	1	1
Nicotine Pouch Self-Administration	3	2
Nicotine Use	1	1
Nicotine Use Disorder	8	6
Nicotine Vaping	6	4
Nicotine Withdrawal	2	1
NICU	1	1
NICU Infants	1	1
Nicu MRI	1	-
NIDDM	2	-
Niemann-Pick Disease	2	-
Niemann-Pick Disease, Type C	4	3
Niemann-Pick Disease, Type C1	2	-
Niemann-Pick Diseases	1	1
Niemann-Pick Type C Disease	2	2
Night Shift Work	1	1
Night Sweats	3	1
Nightmare	9	4
Nightmare Disorder With Associated Other Sleep Disorder	1	1

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