2026 data ClinicalTrials.gov official source

Conditions: U

Compiled by PlainTrial · January 1, 2026

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

528 conditions starting with "U"

Showing 301–350 of 528

Condition	Trials	Recruiting
Upper Tract Urothelial Cancer	1	1
Upper Tract Urothelial Carcinoma	1	1
Upper Urinary Tract Urothelial Carcinoma	1	1
Upper-Airway Cough Syndrome	1	1
Upper-extremity Surgery	2	-
Upshaw-Schulman Syndrome	1	1
Uptake Vaccination	1	-
Urachal Adenocarcinoma	1	1
Urachal Cancer	1	-
Urea Cycle Disorder	5	3
Urea Cycle Disorders	5	2
Urea Cycle Disorders, Inborn	2	1
Uremic Pruritus	2	-
Ureter Calculi	1	1
Ureter Cancer	3	1
Ureter Carcinoma	1	1
Ureter Injury	6	3
Ureter Stones	1	-
Ureteral Calculi	5	1
Ureteral Diseases	3	2
Ureteral Injury	1	-
Ureteral Neoplasms	3	1
Ureteral Obstruction	2	-
Ureteral Stent	1	-
Ureteral Stent Placement	1	1
Ureteral Stone	4	4
Ureteral Stones, Kidney Stones	1	1
Ureteral Stricture	2	2
Ureterolithiases	1	-
Ureteropelvic Junction Obstruction	1	1
Ureteropelvic Junction; Obstruction, Congenital	1	1
Ureteroscopy	1	1
Urethral Bulking	1	1
Urethral Cancer	9	3
Urethral Cancer Associated With Invasive Bladder Cancer	1	-
Urethral Carcinoma	1	-
Urethral Catheter	1	-
Urethral Injury	1	1
Urethral Neoplasms	3	-
Urethral Obstruction	1	1
Urethral Stricture	3	2
Urethral Stricture, Male	1	1
Urethritis	2	-
Urge Incontinence	8	5
Urge Urinary Incontinence	5	2
Urgency Frequency	1	-
Urgency Incontinence	1	-
Urgency Urinary Incontinence	5	3
Urgency-frequency Syndrome	3	3
Uric Acid Kidney Stone Disease	1	-

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