2026 data ClinicalTrials.gov official source

Conditions: S

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

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

3,019 conditions starting with "S"

Showing 2,851–2,900 of 3,019

Condition	Trials	Recruiting
Surgery	121	44
Surgery Risk Assessment	1	-
Surgery Scheduled	1	1
Surgery With General Anesthesia	1	1
Surgery, Day	1	1
Surgery, Dental	1	-
Surgery--Complications	12	7
Surgical Advanced Care Planning	1	1
Surgical Bleeding	1	-
Surgical Complication	4	3
Surgical Complications	1	-
Surgical Drain	1	1
Surgical Education	1	-
Surgical Incision	4	2
Surgical Injury	1	1
Surgical Pain	1	-
Surgical Patients Intubated With Cuffed ETT	1	-
Surgical Planning	1	1
Surgical Procedure, Unspecified	8	5
Surgical Procedures, Operative	3	-
Surgical Recovery	2	1
Surgical Site Infection	26	9
Surgical Site Infections	4	2
Surgical Skin Preparation	3	-
Surgical Stomas	1	-
Surgical Trauma	1	-
Surgical Wound	18	6
Surgical Wound Dehiscence	3	2
Surgical Wound Dehiscence (SWD)	1	1
Surgical Wound Infection	9	4
Surgical Wound, Healed	1	-
Surgical Wound, Recent	2	-
Surgical Wounds	2	-
Survey, Family Life	1	-
Surveys and Questionnaires	1	-
Survivor of Childhood Cancer	1	1
Survivor Patients	1	1
Survivors of Bone Marrow Transplant	1	-
Survivors of Childhood Cancer	4	1
Survivorship	37	21
Suspected Arrhythmia	1	-
Suspected Central Nervous System Tumors	1	-
Suspected Epithelial Ovarian, Fallopian Tube, or Primary Peritoneal Cancer	1	1
Suspected Invasive Mould Infection	1	1
Suspected KITD816V Mutated Clonal Mast Cell Disease	1	1
Suspected or Known Squamous Cell Neoplasia	1	1
Suspected or Known Structural or Functional Cardiac Abnormality	1	-
Suspected Primary Prostate Cancer	1	-
Suspected Prostate Cancer	1	1
Suspected Upper Extremity Deep Vein Thrombosis	1	-

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