Healthy volunteers · Iowa
Studies for healthy volunteers in Iowa
67 studies have at least one recruiting site in Iowa. 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.
67 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
Studies
- RecruitingHealthy volunteersPhase 1
A Research Study Looking at How Different Doses of Study Medicine (Inno8) Work in the Body of People With Haemophilia A
Novo Nordisk A/S
- Location
- Iowa City, IA + 4 other US sites
- Eligibility basics
- Ages 18–64 · Men only
- RecruitingHealthy volunteersPhase 1/Phase 2
Chronic Lung Allograft Dysfunction MRI Study
Sean Fain
- Location
- Iowa City, IA
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteersEarly Phase 1
Oxidative Stress in Microvascular Dysfunction Following Gestational Diabetes
Anna Stanhewicz, PhD
- Location
- Iowa City, IA
- Eligibility basics
- Ages 18–50 · Women only
- RecruitingHealthy volunteersEarly Phase 1
Role of ET-1, Physical Activity, and Sedentary Behavior in Microvascular Dysfunction Following GDM
Anna Stanhewicz, PhD
- Location
- Iowa City, IA
- Eligibility basics
- Ages 18–50 · Women only
- RecruitingHealthy volunteersEarly Phase 1
Antidepressant Therapy for Improved Blood Vessel Health After Preeclampsia
Anna Stanhewicz, PhD
- Location
- Iowa City, IA
- Eligibility basics
- Ages 18–45 · Women only
- RecruitingHealthy volunteersEarly Phase 1
Vascular Effects of High-Salt After Preeclampsia
Anna Stanhewicz, PhD
- Location
- Iowa City, IA
- Eligibility basics
- Ages 18–45 · Women only
- RecruitingHealthy volunteersPhase 1
The Impact of Gestational Diabetes Mellitus on Cerebral Blood Flow and Cerebrovascular Function After Pregnancy
Anna Stanhewicz, PhD
- Location
- Iowa City, IA
- Eligibility basics
- Ages 18–50 · Women only
- RecruitingHealthy volunteersEarly Phase 1
Sex Differences in the Vascular Effects of E-cigarette Use
Anna Stanhewicz, PhD
- Location
- Iowa City, IA
- Eligibility basics
- Ages 18–24
- RecruitingHealthy volunteersEarly Phase 1
Role of Inflammation in Vascular Phenotype Associated With E-cigarette Use
University of Iowa
- Location
- Iowa City, IA + 1 other US site
- Eligibility basics
- Ages 18–24
- RecruitingHealthy volunteersEarly Phase 1
Sensitivity of Angiotensin II Type II Receptors in Women Following Preeclampsia
Anna Stanhewicz, PhD
- Location
- Iowa City, IA
- Eligibility basics
- Ages 18–45 · Women only
- RecruitingHealthy volunteersEarly Phase 1
Comparing Approaches to Assess Nitric Oxide-dependent Cutaneous Vasodilation
University of Iowa
- Location
- Iowa City, IA
- Eligibility basics
- Ages 18–30
- RecruitingHealthy volunteersEarly Phase 1
Prenatal Aspirin and Postpartum Vascular Function
Anna Stanhewicz, PhD
- Location
- Iowa City, IA
- Eligibility basics
- Ages 18–50 · Women only
- RecruitingHealthy volunteersEarly Phase 1
Metformin for the Treatment of Microvascular Dysfunction After Gestational Diabetes
Anna Stanhewicz, PhD
- Location
- Iowa City, IA
- Eligibility basics
- Ages 18–45 · Women only
- RecruitingHealthy volunteersPhase 3
A Study to Learn About How a New Pneumococcal Vaccine Works in Infants.
Pfizer
- Location
- Ankeny, IA + 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
- Des Moines, IA + 55 other US sites
- Eligibility basics
- Ages 18–79
- RecruitingHealthy volunteersPhase 4
Study of a Recombinant Spike COVID-19 Vaccine With Matrix-M in Older Adults and People at Increased Risk of Severe COVID-19
Sanofi
- Location
- Sioux City, IA + 19 other US sites
- Eligibility basics
- Ages 12+
- RecruitingHealthy volunteersPhase 3
A Phase 3 Study of Revaccination in Subsequent Pregnancies With Bivalent RSV Vaccine and Duration of Protection of a Single Dose
Pfizer
- Location
- Ames, IA + 76 other US sites
- Eligibility basics
- Ages 0 mo+
- RecruitingHealthy volunteersPhase 3
A Study to Assess the Safety, Tolerability, and Immunogenicity of 3 Lots of a Multivalent Pneumococcal Conjugate Vaccine Administered to Adults
Pfizer
- Location
- Sioux City, IA + 36 other US sites
- Eligibility basics
- Ages 18–49
- RecruitingHealthy volunteersPhase 3
A Study to Learn About a Clostridioides Difficile Vaccine in People 65 Years of Age and Older
Pfizer
- Location
- Ames, IA + 138 other US sites
- Eligibility basics
- Ages 65+
- RecruitingHealthy volunteers
Observational Study of Decentralized Urine Optical Interaction Patterns Associated With Environmental Microplastic and Nanoplastic Exposure
Ecotera Health LLC
- Location
- Des Moines, IA + 50 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
A Randomized Comparison of Stage-Based Care Versus Risk Factor-Based Care for Prevention of Cardiovascular Events
Cleerly, Inc.
- Location
- West Des Moines, IA + 121 other US sites
- Eligibility basics
- Ages 55+
- RecruitingHealthy volunteers
An Early Prospective Study of the Traq™ Device for Characterization of Binocular Ocular Function in Normal Subjects and Subjects With Recent Traumatic Brain Injury
Rebiscan, Inc.
- Location
- Waukee, IA
- Eligibility basics
- Ages 12+
- RecruitingHealthy volunteers
Outcomes Following Combined Adductoplasty™ and Lapiplasty® (MTA3D)
Treace Medical Concepts, Inc.
- Location
- Ankeny, IA + 8 other US sites
- Eligibility basics
- Ages 14–65
- RecruitingHealthy volunteers
Comparative Effect of Training Methods to Reduce Forefoot Loading in Carbon Fiber Custom Dynamic Orthoses
Jason Wilken
- Location
- Iowa City, IA
- Eligibility basics
- Ages 18–65
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.