2026 data ClinicalTrials.gov official source

Conditions: H

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

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1,716 conditions starting with "H"

Showing 251–300 of 1,716

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Condition Trials
Healthy Infants 1
Healthy Lifestyle 18
Healthy Lifestyle Behaviors 1
Healthy Male 1
Healthy Male and Female Subjects 4
Healthy Male Subjects 1
Healthy Male Volunteers 3
Healthy Males 3
Healthy Men 2
Healthy Men Age 50 Who Are Considering PSA Screening 1
Healthy Men and Women 1
Healthy Non-smokers 1
Healthy Normal Athletes 1
Healthy Nutrition 5
Healthy Older Adults Ages 60-89 1
Healthy or Stable Underlying Chronic Medical Condition 1
Healthy Participant 1
Healthy Participants 120
Healthy Participants Study 1
Healthy Participants With Lower-than-average Mental Well-being 1
Healthy Patients Undergoing Screening Colonoscopy 1
Healthy Population 3
Healthy Postmenopausal Women 3
Healthy Runners 1
Healthy Skin 2
Healthy Study Participants 3
Healthy Subject 17
Healthy Subjects 70
Healthy Subjects (HS) 1
Healthy Term Infants Solely Formula Fed 1
Healthy Volunteer 113
Healthy Volunteer - Complete 1
Healthy Volunteer Study 10
Healthy Volunteers 284
Healthy Volunteers (HV) 1
Healthy Volunteers Eligible for Study; Drug Being Developed for Allergic Conjunctivitis 1
Healthy Volunteers in Fed and Fasted State 1
Healthy Volunteers Only 2
Healthy Volunteers With Induced Hypoxia 1
Healthy Volunteers, Pulmonary Arterial Hypertension 1
Healthy Volunteers; High Cholesterol 1
Healthy Women 5
Healthy Young 1
Healthy Young Adults 5
Healthy, no Evidence of Disease 12
Hearing 4
Hearing Abnormality 1
Hearing Aid 1
Hearing Aid Fitting 1
Hearing Aids 5

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