2026 data ClinicalTrials.gov official source

Conditions: A

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

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

2,835 conditions starting with "A"

Showing 2,551–2,600 of 2,835

Condition	Trials	Recruiting
Atherosclerotic Cardiovascular Disease in Patients With ESKD	1	1
Atherosclerotic Coronary Vascular Disease	1	1
Atherosclerotic Disease	1	1
Atherosclerotic Disease, Carotid	1	-
Atherosclerotic Heart Disease	1	-
Atherosclerotic Heart Disease of Native Coronary Artery	1	1
Atherosclerotic Plaque	2	-
Atherosclerotic Renal Artery Stenosis	1	-
Atherosclerotic Vascular Disease	1	-
Atherothrombosis	1	-
Athlete	2	2
Athlete Support	1	1
Athlete's Foot	2	-
Athletes	1	1
Athletic Injuries	4	2
Athletic Performance	2	-
ATLL	1	1
ATM Gene Mutation	7	4
Atopic	1	1
Atopic Dermatitis	151	55
Atopic Dermatitis (AD)	8	6
Atopic Dermatitis Eczema	9	2
Atopic Dermatitis of Scalp	1	-
Atopic Dermatitis, Unspecified	1	1
Atopic Eczema	2	-
Atopic Hand and Foot Dermatitis	1	-
Atopic Hand Eczema	1	-
Atopic Hypersensitivity	1	-
Atopic Keratoconjunctivitis	1	1
Atoptic Dermatitis	1	1
Atopy	5	2
ATP-Binding Cassette Subfamily C Member 6 Deficiency	2	2
Atrial Arrhythmia	5	2
Atrial Enlargement	1	1
Atrial Fibrillation	204	60
Atrial Fibrillation (AF)	18	12
Atrial Fibrillation - Symptomatic	1	1
Atrial Fibrillation Ablation	1	-
Atrial Fibrillation and Flutter	1	-
Atrial Fibrillation Chronic	1	-
Atrial Fibrillation in High Risk Patients	1	-
Atrial Fibrillation New Onset	4	1
Atrial Fibrillation or Atrial Flutter	1	-
Atrial Fibrillation Paroxysmal	5	3
Atrial Fibrillation Rapid	3	1
Atrial Fibrillation Recurrent	1	-
Atrial Fibrillation, Bradycardia	1	-
Atrial Fibrillation, Paroxysmal or Persistent	1	-
Atrial Fibrillation, Persistent	4	1
Atrial Fibrillation, Postoperative	2	2

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