2026 data ClinicalTrials.gov official source

Conditions: P

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

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

2,858 conditions starting with "P"

Showing 401–450 of 2,858

Condition	Trials	Recruiting
PASC Post Acute Sequelae of COVID 19	7	4
Pass Over for Promotion	1	1
Patau Syndrome	1	-
Patch Testing	1	-
Patelet Rich Fibrin	1	1
Patella Fracture	1	1
Patellar Dislocation	4	2
Patellar Dislocation, Recurrent	1	1
Patellar Instability	1	1
Patellar Ligament	1	-
Patellar Tendinitis	1	-
Patellofemoral Dislocation	1	1
Patellofemoral Disorder	1	1
Patellofemoral Joint Dislocation	1	1
Patellofemoral Osteoarthritis	2	1
Patellofemoral Pain	6	4
Patellofemoral Pain (PFPS)	1	1
Patellofemoral Pain Syndrome	11	6
Patellofemoral Pain, PFP	1	1
Patent Ductus Arteriosus	8	1
Patent Ductus Arteriosus (PDA)	1	1
Patent Ductus Arteriosus After Premature Birth	2	1
Patent Foramen Ovale	8	2
Patent Foramen Ovale (PFO)	1	1
Patent Processus Vaginalis	1	-
Paternal Age	1	1
Pathogen Transmission	2	1
Pathogen-associated Lung Injury	1	1
Pathogenesis	1	1
Pathogenesis of CADASIL	1	1
Pathologic Fracture	1	1
Pathologic Processes	14	2
Pathologic Skin Picking	1	-
Pathologic Stage 0 Gastric Cancer AJCC v8	1	-
Pathologic Stage I Cutaneous Melanoma AJCC v8	1	-
Pathologic Stage I Cutaneous Merkel Cell Carcinoma AJCC v8	1	-
Pathologic Stage I Gastric Cancer AJCC v8	1	-
Pathologic Stage I Gastroesophageal Junction Adenocarcinoma AJCC v8	1	-
Pathologic Stage I HPV-Mediated (p16-Positive) Oropharyngeal Carcinoma AJCC v8	5	2
Pathologic Stage IA Cutaneous Melanoma AJCC v8	1	-
Pathologic Stage IA Gastric Cancer AJCC v8	1	-
Pathologic Stage IA Gastroesophageal Junction Adenocarcinoma AJCC v8	1	-
Pathologic Stage IB Cutaneous Melanoma AJCC v8	1	-
Pathologic Stage IB Esophageal Adenocarcinoma AJCC v8	1	-
Pathologic Stage IB Gastric Cancer AJCC v8	1	-
Pathologic Stage IB Gastroesophageal Junction Adenocarcinoma AJCC v8	1	-
Pathologic Stage II Cutaneous Merkel Cell Carcinoma AJCC v8	1	-
Pathologic Stage II Esophageal Adenocarcinoma AJCC v8	1	1
Pathologic Stage II Gastric Cancer AJCC v8	1	-
Pathologic Stage II HPV-Mediated (p16-Positive) Oropharyngeal Carcinoma AJCC v8	5	2

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

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