Location · Oklahoma
Clinical trials recruiting in Oklahoma
249 recruiting studies have at least one site in Oklahoma; 45 accept healthy volunteers. Studies that need a specific condition are included too, so check each listing.
Want the research companies that run paid Phase 1 studies for healthy volunteers? Paid clinical trial companies in Oklahoma.
249 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
Studies
- RecruitingHealthy volunteers
Early Versus Delayed Start of Ocrevus Zunovo for Relapsing Multiple Sclerosis
Oklahoma Medical Research Foundation
- Location
- Oklahoma City, OK
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
The Interaction of Body Composition, Sex Hormones and Exercise in Men
Oklahoma State University
- Location
- Stillwater, OK
- Eligibility basics
- Ages 18–79 · Men only
- RecruitingHealthy volunteers
Use of CA125 and Complementary Biomarkers for the Early Detection of Ovarian Cancer in Low Risk Women
M.D. Anderson Cancer Center
- Location
- Oklahoma City, OK + 9 other US sites
- Eligibility basics
- Ages 50–74 · Women only
- RecruitingHealthy volunteers
The Vanguard Study: Testing a New Way to Screen for Cancer
National Cancer Institute (NCI)
- Location
- Oklahoma City, OK + 44 other US sites
- Eligibility basics
- Ages 45–75
- RecruitingHealthy volunteers
Wakaya: Rising Up for Choctaw Youth Health
University of Washington
- Location
- Durant, OK + 1 other US site
- Eligibility basics
- Ages 12–19
- RecruitingHealthy volunteersPhase 2
Trial of Varenicline With Nicotine Lozenges and a Smartphone Medication Adherence Intervention for Smoking Cessation
University of Oklahoma
- Location
- Oklahoma City, OK
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Multidimensional Predictive Modeling to Understand Mechanisms of Exercise Response Heterogeneity in Older Adults (M3AX)
Florida Institute for Human and Machine Cognition
- Location
- Oklahoma City, OK + 1 other US site
- Eligibility basics
- Ages 60+
- RecruitingHealthy volunteers
Self-collection for HPV Testing to Improve Cervical Cancer Prevention (SHIP) Trial (LMI-001-A-S04)
National Cancer Institute (NCI)
- Location
- Oklahoma City, OK + 17 other US sites
- Eligibility basics
- Ages 25+ · Women only
- RecruitingHealthy volunteers
Outcomes in Simulated Endoscopy Training
University of Oklahoma
- Location
- Oklahoma City, OK
- Eligibility basics
- Ages 22–50
- RecruitingHealthy volunteers
Efficacy of the Buzzy System on Pain and Fear Reduction in Elbow Fracture Pin Removal
University of Oklahoma
- Location
- Oklahoma City, OK + 1 other US site
- Eligibility basics
- Ages 3–10
- RecruitingHealthy volunteers
Acute Pharmacokinetics of Create Wellness Gummies in Healthy Adults
University of Oklahoma
- Location
- Norman, OK
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteersPhase 2/Phase 3
Empowering Cessation ACS South Region
University of Oklahoma
- Location
- Oklahoma City, OK
- Eligibility basics
- Ages 18–100
- RecruitingHealthy volunteers
Cigar Legislation and Regulation in Tobacco for the Young (Project CLARITY)
University of Oklahoma
- Location
- Oklahoma City, OK
- Eligibility basics
- Ages 18–24
- RecruitingHealthy volunteers
A Culturally Tailored Smartphone Application for African American Smokers
University of Oklahoma
- Location
- Oklahoma City, OK
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 2/Phase 3
Efficacy of a Smartphone-Based JITAI to Reduce Drinking Among Adults Experiencing Homelessness
University of Oklahoma
- Location
- Oklahoma City, OK
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Protocol for Collecting, Banking and Distributing Human Tissue Samples: St. Jude Children's Research Hospital Tissue Resources Core Facility
St. Jude Children's Research Hospital
- Location
- Tulsa, OK + 12 other US sites
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteersPhase 2
Dyadic Financial Incentive Treatments for Dual Smoker Couples
University of Oklahoma
- Location
- Tulsa, OK
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 4
Beta-Adrenergic Modulation of Drug Cue Reactivity
University of Oklahoma
- Location
- Tulsa, OK
- Eligibility basics
- Ages 21–60
- RecruitingHealthy volunteers
Postural Control in Adults
University of Oklahoma
- Location
- Oklahoma City, OK
- Eligibility basics
- Ages 65–80
- RecruitingHealthy volunteersPhase 3
Local Bisphosphonate Effect on Recurrence Rate in Extremity Giant Cell Tumor of Bone
St. Louis University
- Location
- Oklahoma City, OK + 10 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Decoding Emotional Dynamics in Bipolar Disorder
Laureate Institute for Brain Research, Inc.
- Location
- Tulsa, OK
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Neuromodulation and Fatigue
University of Oklahoma
- Location
- Norman, OK
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteersPhase 4
The Effect of NAD Supplementation on Brain Vascular Health in Aging
University of Oklahoma
- Location
- Oklahoma City, OK
- Eligibility basics
- Ages 60–85
- RecruitingHealthy volunteers
Postnatal Exercise to Activate Baby's Brown Fat
Joslin Diabetes Center
- Location
- Oklahoma City, OK + 1 other US site
- Eligibility basics
- Ages 18–45 · Women only