2026 data ClinicalTrials.gov official source

Conditions: A

Compiled by PlainTrial · January 1, 2026

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

2,809 conditions starting with "A"

Showing 2,101–2,150 of 2,809

Condition	Trials	Recruiting
Antiretroviral Therapy	1	-
Antiretroviral Treatment	1	1
Antisocial Behavior	3	1
Antisocial Personality Disorder	1	-
Antiviral Drug Adverse Reaction	1	-
Antiviral Toxicity	2	1
Anus Neoplasms	3	-
Anxiety	367	148
Anxiety and Depression	1	1
Anxiety and Fear	3	2
Anxiety and Mood Disorders	1	-
Anxiety Depression	10	6
Anxiety Disorder	23	7
Anxiety Disorder Generalized	1	1
Anxiety Disorder Not Otherwise Specified	1	-
Anxiety Disorder of Adolescence	1	1
Anxiety Disorder of Childhood	3	1
Anxiety Disorder of Childhood or Adolescence	1	1
Anxiety Disorders	85	42
ANXIETY DISORDERS (or Anxiety and Phobic Neuroses)	1	1
Anxiety Disorders and Symptoms	10	5
Anxiety Disorders Generalized	1	-
Anxiety Generalized	2	1
Anxiety in Pregnancy	3	3
Anxiety Postoperative	1	1
Anxiety Preoperative	2	1
Anxiety Sensitivity	2	1
Anxiety State	1	-
Anxiety Symptoms	6	2
Anxiety, Separation	3	-
Anxiety, Social	1	-
Anxious Depression	3	2
Any Advanced Solid Tumors	1	-
Any Condition Requiring a PICC Placement	1	-
Any Condition Requiring Surgical Treatment Via Colectomy	1	-
Any Disease Condition and Reportedly-healthy Subjects	1	1
Any Solid Oral Medication	1	1
Any Solid Tumor	2	-
Any Solid Tumors Progressed After a Prior Immunotherapy	1	1
Any Tumor Type Eligible for Treatment With Talimogene Laherparepvec in Amgen or BioVEX-sponsored Clinical Trial	1	-
Aorta, Thoracic Pathologies	1	1
Aorta; Lesion	2	-
Aortic Aneurysm	16	10
Aortic Aneurysm and Dissection	1	1
Aortic Aneurysm, Abdominal	9	6
Aortic Aneurysm, Thoracic	5	1
Aortic Aneurysm, Thoracoabdominal	2	1
Aortic Aneurysms	1	1
Aortic Arch	1	1
Aortic Arch Aneurysm	5	5

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