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
Safety, Tolerability, and Bioeffects of Alirocumab in Non-treatment Seeking Heavy Drinkers
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 21–65
- RecruitingHealthy volunteersEarly Phase 1
Evaluation of the Electronic Cigarette Withdrawal Syndrome
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 21–55
- RecruitingHealthy volunteersEarly Phase 1
Optic Nerve Head Strain in Non-glaucoma Subjects
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 30–90
- RecruitingHealthy volunteersPhase 1
Cabotegravir-Hormone PK/PD Interactions for HIV Prevention
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 19+
- RecruitingHealthy volunteersPhase 1/Phase 2
Vasopressin and Pain Perception in the Brain
University of Maryland, Baltimore
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersPhase 1
HPV DNA Vaccine Via Electroporation for HPV16 Positive Cervical Neoplasia
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
- Location
- Baltimore, MD + 1 other US site
- Eligibility basics
- Ages 19+ · Women only
- RecruitingHealthy volunteersEarly Phase 1
Measuring Acute Drug Demand in Humans
University of Maryland, Baltimore
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersPhase 1
Controlled Human Infection Study of Orally Administered Trichuris Trichiura Eggs in Naïve Adults
George Washington University
- Location
- Bethesda, MD + 1 other US site
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteersPhase 1
Behavioral Pharmacology of Orally Administered THC and D-limonene
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 21–55
- RecruitingHealthy volunteersOvernight stay mentioned
Anesthetic Optimization in Pediatric LeFort Surgeries
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 14+
- RecruitingHealthy volunteersPhase 1
Safety and Immunogenicity of Ad4-HIV Envelope Vaccine Vectors in Healthy Volunteers
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersPhase 1
Effect of Cannabis on E-Cigarette Use Behavior
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 21+
- RecruitingHealthy volunteersPhase 1
Investigation of Psychedelic Effects in Psychoactive Substances
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 25–55
- RecruitingHealthy volunteersPhase 1
Acute Effects of Oral Nicotine Pouches
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 21+
- RecruitingHealthy volunteersPhase 1
Evaluation of Single Dosing With Two F/TAF Tablets Among Healthy Volunteers
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 1/Phase 2
Repeat Peripheral Blood Stem Cell Transplantation for Patients With Sickle Cell Disease and Falling Donor Myeloid Chimerism Levels
National Heart, Lung, and Blood Institute (NHLBI)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 2–80
- RecruitingHealthy volunteersPhase 1
Effect of Cannabis on Cigarette Use Behavior
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 21+
- RecruitingHealthy volunteersPhase 1
Oral Cannabidiol for Tobacco Cessation
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersEarly Phase 1
Differing Levels of Hypoglycemia
University of Maryland, Baltimore
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteersPhase 1
Cannabidiol (CBD) in Adults With ASD
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 1
Hyperpolarized 13C-pyruvate Metabolic MRI With Traumatic Brain Injury
University of Maryland, Baltimore
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteersPhase 3
A Study to Learn About How a New Pneumococcal Vaccine Works in Infants.
Pfizer
- Location
- Baltimore, MD + 101 other US sites
- Eligibility basics
- Ages 1 mo–7 mo
- RecruitingHealthy volunteersPhase 3
A Study of Aleniglipron in Adults With Obesity or Overweight and Type 2 Diabetes Mellitus (ACCOMPLISH-2)
Gasherbrum Bio, Inc., a wholly owned subsidiary of Structure Therapeutics
- Location
- Silver Spring, MD + 55 other US sites
- Eligibility basics
- Ages 18–79
- RecruitingHealthy volunteersPhase 3
A Study to Evaluate the Efficacy and Safety of CBL-514 Injection for Reducing Subcutaneous Fat
Caliway Biopharmaceuticals Co., Ltd.
- Location
- Hunt Valley, MD + 5 other US sites
- Eligibility basics
- Ages 18+
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.