Healthy volunteer studies in Concord, CA
12 studies at sites in and around Concord 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.
Collecting Blood Samples From Patients With and Without Cancer to Evaluate Tests for Early Cancer Detection
RecruitingObservational studyHealthy volunteers welcome
- John Muir Medical Center-Walnut Creek, Walnut Creek · 5 mi away
- Contra Costa Regional Medical Center, Martinez · 6 mi away
A Study to Assess the Safety, Tolerability, and Immunogenicity of 3 Lots of a Multivalent Pneumococcal Conjugate Vaccine Administered to Adults
RecruitingPhase 3Healthy volunteers welcome
- Diablo Clinical Research, LLC dba Flourish Research, Walnut Creek · 5 mi away
A Study on the Efficacy of a Vaccine Against Influenza in Adults ≥65 Years of Age
RecruitingPhase 3Healthy volunteers welcome
- GSK Investigational Site, Walnut Creek · 5 mi away
A Study to Learn About a Clostridioides Difficile Vaccine in People 65 Years of Age and Older
RecruitingPhase 3Healthy volunteers welcome
- Kaiser Permanente Walnut Creek, Walnut Creek · 5 mi away
- Diablo Clinical Research, Inc., Walnut Creek · 5 mi away
Senicapoc in Alzheimer's Disease
RecruitingPhase 2Healthy volunteers welcome
- UC Davis Alzheimer's Disease Center East Bay, Walnut Creek · 5 mi away
A Study to Learn About a COVID-19 Vaccine in Healthy Adults 18 Through 64 Years of Age
RecruitingPhase 4Healthy volunteers welcome
- Diablo Clinical Research, LLC dba Flourish Research, Walnut Creek · 5 mi away
A Study on the Immune Response and Safety of an Investigational Combined Measles, Mumps, Rubella and Varicella Vaccine, When Administered as Intramuscular Injection to Healthy Children 15 Months to 6 Years of Age
RecruitingPhase 3Healthy volunteers welcome
- GSK Investigational Site, Walnut Creek · 5 mi away
Molecular Genetics Studies of Cancer Patients and Their Relatives
RecruitingObservational studyHealthy volunteers welcome
- John Muir Medical Center-Concord Campus, Concord
A Study on the Immune Response and Safety of an Investigational Chickenpox Vaccine When Given to Healthy Children 12 to 15 Months of Age
RecruitingPhase 3Healthy volunteers welcome
- GSK Investigational Site, Walnut Creek · 5 mi away
A Study to Learn About mRNA Vaccines Against Influenza in Adults
RecruitingPhase 2Healthy volunteers welcome
- Diablo Clinical Research, LLC d/b/a Flourish Research, Walnut Creek · 5 mi away
A Study to Learn About a Vaccine Against E Coli in Healthy Adults
RecruitingPhase 1Healthy volunteers welcome
- Diablo Clinical Research, Inc., Walnut Creek · 5 mi away
Urine Metabolites in the Diagnosis of Disease
RecruitingObservational studyHealthy volunteers welcome
- Bass Medical Group (Gastroenterology), Walnut Creek · 5 mi away
From ClinicalTrials.gov, data retrieved Oct 5, 2026. Each study sets its own eligibility; the study team decides who can join.