2026 data ClinicalTrials.gov official source

Conditions: P

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

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

2,857 conditions starting with "P"

Showing 1,851–1,900 of 2,857

Condition	Trials	Recruiting
Posttraumatic Peripheral Neuropathic Pain	1	1
Posttraumatic Stress	1	-
Posttraumatic Stress Disorder	119	39
Posttraumatic Stress Disorder (PTSD)	18	11
Posttraumatic Stress Disorder, Delayed Onset	1	1
Posttraumatic Stress Disorders	4	-
Posttraumatic Stress Symptom	1	1
Postural Balance	9	1
Postural Control	1	1
Postural Orthostatic Tachycardia Syndrome	12	3
Postural Orthostatic Tachycardia Syndrome (POTS)	5	2
Postural Stability	1	1
Postural Tachycardia Syndrome	20	4
Postural Tachycardia Syndrome (POTS)	4	3
Postural; Defect	1	-
Posture	4	2
Postviral Syndrome	1	1
Potassium (K) & Ionized Calcium (iCa) in Capillary Whole Blood	1	-
Potato	1	-
POTS	1	-
POTS - Postural Orthostatic Tachycardia Syndrome	6	3
Potter Syndrome	2	1
Pouch, Ileal	1	1
Pouches, Ileoanal	1	1
Pouchitis	6	4
Poverty	2	1
PPA	1	1
PPAP	1	1
PPP2R5D Neurodevelopmental Disorder	1	-
PPROM	1	1
PPV-MF	1	1
PR-Negative Breast Cancer	1	1
PR-Positive Breast Cancer	1	1
Practice	1	1
Prader-Willi Syndrome	17	7
PRAME Positive	1	-
Pre B-Cell Acute Lymphoblastic Leukaemia	1	-
Pre Diabetes	60	22
Pre Hypertension	5	1
Pre-Bronchiolitis Obliterans Syndrome	1	1
Pre-Cancerous Dysplasia	2	2
Pre-diabetic	2	1
Pre-diabetic State	2	1
Pre-Eclampsia	9	8
Pre-Eclampsia; Complicating Pregnancy	1	1
Pre-exposure Prophylaxis	13	5
Pre-Exposure Prophylaxis (PrEP)	2	-
Pre-exposure Prophylaxis Against Pneumonic Plague in Healthy Adults	1	1
Pre-exposure Prophylaxis for Prevention of HIV Infection	1	-
Pre-Exposure Prophylaxis of HIV Infection	3	-

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