Core: healthy volunteers
Studies for healthy volunteers recruiting now
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.
5,002 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
More recruiting studies (pay not posted)
- RecruitingHealthy volunteersPhase 1
A First in Human Study of the Safety, Tolerability, and the Physiologically Based Pharmacokinetics of XFB19 in Healthy Adult Volunteers.
Xfibra, Inc.
- Location
- Knoxville, TN
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteersPhase 1
A Study to Learn About a Vaccine Against E Coli in Healthy Adults
Pfizer
- Location
- Anaheim, CA + 9 other US sites
- Eligibility basics
- Ages 18–64
- RecruitingHealthy volunteersPhase 1
A 3-part Study of SYX-5219 in Healthy Volunteers and Participants With Atopic Dermatitis
Sitryx Therapeutics Ltd
- Location
- Arkansas City, AR + 5 other US sites
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersPhase 1/Phase 2
Study of ENP-501 in Peanut-Allergic and Non-Allergic Participants
N-Fold, LLC
- Location
- Aurora, CO
- Eligibility basics
- Ages 14–50
- RecruitingHealthy volunteersPhase 1
A Study to Evaluate the Effect of Food on the Bioavailability of AJ201, and Safety, Tolerability, and Pharmacokinetics of AJ201 in Japanese and White Healthy Male Participants
AnnJi Pharmaceutical Co., Ltd.
- Location
- Los Alamitos, CA
- Eligibility basics
- Ages 18–55 · Men only
- RecruitingHealthy volunteersPhase 1
A Study to Learn About the Medicine Called PF-08653944 in People With and Without Reduced Liver Function
Pfizer
- Location
- Miami Lakes, FL + 2 other US sites
- Eligibility basics
- Ages 18–74
- RecruitingHealthy volunteersPhase 1/Phase 2
A Study on the Safety and Immune Response of a Urinary Tract Infection (UTI) Vaccine in Adults 18-64 Years of Age and Clinical Efficacy in Females 18-64 Years of Age
GlaxoSmithKline
- Location
- Lenexa, KS + 5 other US sites
- Eligibility basics
- Ages 18–64
- RecruitingHealthy volunteersPhase 1
A Study to Investigate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Single and Multiple Doses of EDP-978 in Healthy Adults
Enanta Pharmaceuticals, Inc
- Location
- San Antonio, TX
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersPhase 1
First-in-Human Single and Multiple Dose of HL-400
Highlightll Pharmaceutical (USA) LLC
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersPhase 1/Phase 2
A Trial to Learn if ALN-PNP is Safe and Well Tolerated in Healthy Adults and Adult Participants With Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD)
Regeneron Pharmaceuticals
- Location
- Los Angeles, CA + 4 other US sites
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteersPhase 1
A Study to Learn How the Body Processes the Study Medicine Called Vepdegestrant in People With Loss of Liver Function
Pfizer
- Location
- Miami, FL + 3 other US sites
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteersPhase 1
Assessment of Quizartinib Pharmacokinetic in Subjects With Severe Hepatic Impairment
Daiichi Sankyo
- Location
- Miami, FL + 2 other US sites
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteersPhase 1/Phase 2
A First in Human Study of CMND-100 in Healthy and Alcohol Use Disorder (AUD) Subjects
Clearmind Medicine Inc.
- Location
- New Haven, CT + 1 other US site
- Eligibility basics
- Ages 18–60
- RecruitingHealthy volunteersPhase 1
Study to Evaluate if Exposure to Drug is Impacted in Participants With Renal Insufficiency
Sun Pharmaceutical Industries Limited
- Location
- Miami Lakes, FL
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteersPhase 1
Study to Evaluate Safety, Tolerability, and Pharmacokinetics of Amisodin in Healthy Adult Subjects With Amyotrophic Lateral Sclerosis
PRG Science & Technology Co., Ltd.
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteersPhase 1
A Study of TAK-781 in Healthy Volunteers and in Participants With Non-Cirrhotic Primary Sclerosing Cholangitis (PSC)
Takeda
- Location
- Salt Lake City, UT
- Eligibility basics
- Ages 18–68
- RecruitingHealthy volunteersPhase 1
A Single- and Multiple-Ascending Dose Study of SRK-439 in Healthy Adults
Scholar Rock, Inc.
- Location
- Cincinnati, OH
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteersPhase 1
First-in-human Study of Orally Administered KT-579 in Healthy Adult Participants
Kymera Therapeutics, Inc.
- Location
- Lincoln, NE
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteersPhase 1
A Study of ORX489 in Healthy Adult Participants, Aged 18 to 60 Years
Centessa Pharmaceuticals (UK) Limited
- Location
- Lincoln, NE
- Eligibility basics
- Ages 18–60
- RecruitingHealthy volunteersPhase 1
A First-in-Human Single and Multiple Ascending Dose Study of MT-251
Mirador Therapeutics, Inc.
- Location
- San Diego, CA
- Eligibility basics
- Ages 19–55
- RecruitingHealthy volunteersPhase 1
Phase 1a Single Ascending Dose Study of MIB-725 in Healthy Adults
Metro International Biotech, LLC
- Location
- Boston, MA
- Eligibility basics
- Ages 19–60
- RecruitingHealthy volunteersPhase 1
Multiple Ascending Dose Study to Evaluate the Safety, Tolerability and Pharmacokinetics of KSHN001034 in Healthy Postmenopausal Female Volunteers
Kashiv BioSciences, LLC
- Location
- Miami Lakes, FL
- Eligibility basics
- Ages 45–60 · Women only
- RecruitingHealthy volunteersPhase 1
Evaluate the Pharmacokinetics, Safety, and Tolerability of NSHO-101 in Healthy Participants
Ensho Therapeutics, Inc.
- Location
- Anaheim, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 1
A Study to Learn More About the Safety of BIIB145 and How it is Processed in the Body of Healthy Adult Participants
Biogen
- Location
- Austin, TX
- Eligibility basics
- Ages 18–55
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.