Healthy volunteers · Maryland
Studies for healthy volunteers in Maryland
511 studies have at least one recruiting site in Maryland. These studies say in their official record that they accept healthy volunteers. Many are Phase 1 studies that test how a new medicine is absorbed and tolerated; others recruit healthy people as a comparison group alongside patients.
511 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
More recruiting studies (pay not posted)
- RecruitingHealthy volunteersPhase 1
[18F]PF-06445974 to Image PDE4B in Major Depressive Disorder Using PET
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteersPhase 1/Phase 2
Psilocybin Efficacy With or Without Pimavanserin Pretreatment
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 21–65
- RecruitingHealthy volunteersPhase 1
Evaluation of [11C]ZTP-1 to Image PDE4B
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–101
- RecruitingHealthy volunteersPhase 1
PET Imaging of Noradrenergic Transmission in the Brain
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–105
- RecruitingHealthy volunteersPhase 1
Nicotinic Receptor Genetic Variation and Alcohol Reward
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 21–60
- RecruitingHealthy volunteersPhase 1
Induced Blood-Stage Malaria in Healthy Malaria-Naive Adults to Assess the Safety and Infectivity of Plasmodium Vivax Challenge Agent and Evaluate Transmission in Mosquito Feeding Assays
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–54
- RecruitingHealthy volunteersPhase 1/Phase 2
Human Immune Response to Ixodes Scapularis Tick Bites
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–99
- RecruitingHealthy volunteersPhase 1
PET Imaging of Cyclooxygenases in Neurodegenerative Brain Disease
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–99
- RecruitingHealthy volunteersPhase 1
Effects of Various Cannabis Strains on Perceptual, Subjective and Objective Use Outcomes
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 21–55
- RecruitingHealthy volunteersPhase 1
PRoMiSS: Psilocybin and the Role of Music in Set and Setting
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 21–75
- RecruitingHealthy volunteersEarly Phase 1
Psilocybin Administration With 5-HT1a Blockade
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 21–60
- RecruitingHealthy volunteersPhase 1
Vaporized Cannabis Administration and Co-Administration of Alcohol on Impairment
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 21+
- RecruitingHealthy volunteersPhase 1
The Pharmacokinetics of a Hemp-Based Topical Product
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteersOvernight stay mentioned
Functional Magnetic Resonance Imaging Sleep Study With Auditory Stimuli
National Institute of Neurological Disorders and Stroke (NINDS)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–34
- RecruitingHealthy volunteersOvernight stay mentioned
The Impact of Heavy Alcohol Use on Saliva and Oral Health
National Institutes of Health Clinical Center (CC)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–100
- RecruitingHealthy volunteersPhase 1
Safety and Pharmacokinetics Study of PGT121.414.LS Alone and in Combination With VRC07-523LS in Infants Exposed to HIV-1
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Baltimore, MD + 4 other US sites
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteersPhase 1
PET Imaging of Cyclooxygenase in Participants With Major Depressive Disorder (MDD)
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteersPhase 1
Assessment of 11C-JMJ-129 for Imaging PDE4D in Brain and Whole Body of Healthy Volunteers
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–101
- RecruitingHealthy volunteersPhase 1
PET Imaging of Cyclooxygenase-1 in Participants With Neurological Manifestations of Post-Acute Sequelae of SARS-CoV-2 Infection (PASC)
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteersPhase 1
Virtual Reality Mobility Assessment of Functional Vision in Retinal Disease
National Eye Institute (NEI)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 5–120
- RecruitingHealthy volunteersPhase 1
Administering NMT to Reestablish Infant Nasal Microbiome Diversity Following Intranasal Mupirocin Treatment
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 0 mo–60
- RecruitingHealthy volunteersPhase 1/Phase 2
Novel Biomarkers of Non-IgE Immediate Hypersensitivity Drug Reactions
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 1/Phase 2
Double-blind Placebo Controlled Study to Evaluate the Effect of NAD+ Boosting With Nicotinamide Riboside on Immunometabolism and Immunity in Systemic Lupus Erythematosus
National Heart, Lung, and Blood Institute (NHLBI)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–120 · Women only
- RecruitingHealthy volunteersPhase 1/Phase 2
Effects of Psilocybin on Electrophysiology and the Dynamic Content of Thought
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18–75
Who these studies look for
“Healthy” is decided at screening, not by you. Sites usually check vital signs, blood and urine tests, an ECG, your medications and sometimes your BMI or smoking status. A study can still turn you away for reasons that have nothing to do with being unwell, such as timing or a full roster.
Matching a page like this one never means you qualify. Each research team decides eligibility at screening.
Questions
Do healthy volunteer studies pay?
Many do, because volunteers give up time and follow strict schedules, but amounts are set by each study and are usually only confirmed by the research site. When a record states an amount we show the exact wording; otherwise we say compensation is not disclosed.
What happens at a screening visit?
Expect consent paperwork first, then a health questionnaire, vital signs, blood and urine samples and often an ECG. You can ask questions and withdraw at any time, before or after you sign.