2026 data ClinicalTrials.gov official source

Conditions: H

Compiled by PlainTrial · January 1, 2026

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

1,701 conditions starting with "H"

Showing 1,351–1,400 of 1,701

Condition	Trials	Recruiting
Human Papilloma Virus (HPV)	4	3
Human Papilloma Virus Infection Type 16	1	-
Human Papilloma Virus Infection Type 18	1	-
Human Papilloma Virus Vaccine	2	2
Human Papilloma Virus Vaccine Hesitancy	1	-
Human Papillomavirus (HPV)-Positive Oropharyngeal Cancer	1	-
Human Papillomavirus Infection	23	4
Human Papillomavirus Positive Anal Carcinoma	1	-
Human Papillomavirus Positive Cervical Carcinoma	1	-
Human Papillomavirus Positive Oropharyngeal Carcinoma	1	-
Human Papillomavirus Positive Oropharyngeal Squamous Cell Carcinoma	1	-
Human Papillomavirus Positive Penile Carcinoma	1	-
Human Papillomavirus Positive Vulvar Carcinoma	1	-
Human Papillomavirus Type 16	1	1
Human Papillomavirus Vaccination	3	1
Human Papillomavirus Vaccines	1	-
Human Papillomavirus Viruses	2	1
Human Papillomavirus-Independent Cervical Adenocarcinoma, Clear Cell-Type	1	1
Human Papillomavirus-Negative Neck Squamous Cell Carcinoma	1	1
Human Papillomavirus-Related Anal Squamous Cell Carcinoma	1	-
Human Papillomavirus-Related Carcinoma	8	2
Human Papillomavirus-Related Cervical Carcinoma	1	-
Human Papillomavirus-Related Cervical Squamous Cell Carcinoma	2	-
Human Papillomavirus-Related Malignant Neoplasm	1	-
Human Papillomavirus-Related Neck Squamous Cell Carcinoma of Unknown Primary	1	1
Human Papillomavirus-Related Oropharyngeal Squamous Cell Carcinoma	1	1
Human Papillomavirus-Related Squamous Cell Carcinoma of the Penis	1	-
Human Papillomavirus-Related Vulvar Squamous Cell Carcinoma	2	-
Human Papiloma Virus Vaccine	1	-
Human Parainfluenza Virus Type 3	1	1
Human Performance	1	1
Human Physiology	1	1
Human T-Lymphotrophic Virus Type I and/or Type II	1	-
Human T-lymphotropic Virus 1	1	-
Human T-lymphotropic Virus 2	1	-
Human Volunteers	1	-
Human-animal Interaction	1	-
Humans	1	1
Humeral Fracture, Proximal	1	-
Humeral Fractures	3	2
Humeral Fractures, Proximal	1	1
Humerus Fracture	2	2
Humerus Fractures	2	1
Humoral Hypercalcemia of Malignancy	1	-
Hunger	8	3
Hunter Syndrome	6	-
Huntington Disease	36	18
Huntington Disease, Late Onset	1	1
Huntington's Disease (HD)	1	1
Huntington's Dementia	1	1

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

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