2026 data ClinicalTrials.gov official source

Conditions: I

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

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

1,113 conditions starting with "I"

Showing 51–100 of 1,113

Condition	Trials	Recruiting
Idiopathic Cytopenia of Undetermined Significance	1	1
Idiopathic Dilated Cardiomyopathy	1	-
Idiopathic Gastric Motility Disorder	1	1
Idiopathic Gastroparesis	5	-
Idiopathic Generalized Epilepsy	2	-
Idiopathic Hypersomnia	8	6
Idiopathic Hypogonadotropic Hypogonadism	1	-
Idiopathic Infantile Hypercalcaemia - Severe Form	1	1
Idiopathic Infantile Hypercalcemia - Mild Form	1	1
Idiopathic Inflammatory Myopathies	8	5
Idiopathic Inflammatory Myopathies (IIMs)	1	1
Idiopathic Inflammatory Myopathy	3	3
Idiopathic Inflammatory Myositis (IIM)	2	2
Idiopathic Interstitial Pneumonias	1	1
Idiopathic Intracranial Hypertension	3	-
Idiopathic Intracranial Hypertension (IIH)	2	1
Idiopathic Multicentric Castleman's Disease	1	1
Idiopathic Myelofibrosis	2	-
Idiopathic Non-Cirrhotic Portal Hypertension	1	1
Idiopathic Normal Pressure Hydrocephalus (INPH)	1	-
Idiopathic Overactive Bladder	1	1
Idiopathic Overactive Bladder With Urinary Incontinence	1	1
Idiopathic Parkinson Disease	5	1
Idiopathic Parkinson´s Disease	8	1
Idiopathic Pulmonary Arterial Hypertension	4	4
Idiopathic Pulmonary Fibrosis	52	22
Idiopathic Pulmonary Fibrosis (IPF)	9	7
Idiopathic Pulmonary Fibrosis and Progressive Fibrotic Interstitial Lung Disease	1	-
Idiopathic Pulmonary Fibrosis, Interstitial Lung Disease	1	1
Idiopathic Scoliosis	4	3
Idiopathic Sensory Neuropathy	1	-
Idiopathic Short Stature	5	3
Idiopathic Subglottic Stenosis	1	-
Idiopathic Subglottic Stenosis (iSGS)	1	-
Idiopathic Subglottic Tracheal Stenosis	1	-
Idiopathic Thrombocytopenic Purpura	2	-
Idiopathic Thrombocytopenic Purpura (ITP)	1	-
Idiopathic Vascular Ectasia	1	-
if Aortic Stiffness	1	-
Ig-E Mediated Food Allergy	1	1
IgA Deficiency	1	-
IgA Monoclonal Gammopathy	1	-
IgA Monoclonal Gammopathy of Undetermined Significance	1	1
IgA Nephropathy	11	3
IgA Nephropathy (IgAN)	3	3
IgA Vasculitis	6	6
IgAN	4	4
IgAVN	1	1
IGF1 Deficiency	1	1
IGF1R	2	1

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

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