Healthy volunteer studies in Carlsbad, CA
8 studies at sites in and around Carlsbad accept healthy volunteers — people without the condition being studied. Many studies pay participants for their time and travel; the amount is set by each study, so ask the study team.
The Impact of Qualia Vitamin C+ on Individuals With Suboptimal and Adequate Vitamin C Levels
RecruitingHealthy volunteers welcome
- Qualia Life Sciences, Carlsbad
Efficacy of Qualia Testosterone+ on Testosterone Levels in Adult Males
RecruitingHealthy volunteers welcome
- Qualia Life Sciences, Carlsbad
Impact of Two Iron Formulations on Iron Biomarkers and Quality of Life
RecruitingHealthy volunteers welcome
- Qualia Life Sciences, Carlsbad
A Study to Evaluate the Efficacy and Safety of CBL-514 Injection for Reducing Subcutaneous Fat
RecruitingPhase 3Healthy volunteers welcome
- Investigational site 1, Encinitas · 9 mi away
An Open-Label, Two-Arm Pilot Study of the Tolerability, Consumer Acceptability, and Exploratory Well-Being Outcomes of a Multi-Ingredient Protein Formula in Two Flavors in Healthy Adults
RecruitingHealthy volunteers welcome
- Qualia Life Sciences, Carlsbad
Establishing Normal Cognitive Test Scores for Adults Using a Voice-Enabled Digital Testing Platform Across the Lifespan
RecruitingObservational studyHealthy volunteers welcome
- The Neurology Center of Southern California, Carlsbad
Urine Metabolites in the Diagnosis of Disease
RecruitingObservational studyHealthy volunteers welcome
- Unio Health Partners (Gastroenterology), Encinitas · 9 mi away
Dose Regimen Study of SLI-F06 in Healthy Volunteers
RecruitingPhase 2Healthy volunteers welcome
- California Dermatology & Clinical Research Institute, Encinitas · 9 mi away
From ClinicalTrials.gov, data retrieved Oct 6, 2026. Each study sets its own eligibility; the study team decides who can join.