As of September 2026, 91 paid clinical trials are recruiting in Riverside, California. Compensation typically covers time, travel, and study visits, with stipends ranging from modest amounts for short outpatient studies to several thousand dollars for long or inpatient protocols.
Riverside offers studies at sites including Kaiser Permanente-Riverside for conditions such as Schizophrenia, Bipolar Disorder, Bipolar I Disorder, Breast Cancer. Both patients with specific conditions and healthy volunteers can qualify. Most trials offer free study-related medical care alongside compensation.
Recruiting trial data synced daily from ClinicalTrials.gov. Last sync: .
Posted to ClinicalTrials.gov within the last 60 days — these studies are just starting to recruit.
Researchers run research studies in Riverside, CA at 25 active sites. The clinics below currently host the largest number of recruiting studies — each name is followed by the conditions they focus on most.
| Site | Specializes in | Active trials |
|---|---|---|
| Kaiser Permanente-Riverside | Breast Cancer, Chronic Lymphocytic Leukemia, Ovarian Carcinoma | 19 |
| Artemis Institute for Clinical Research | Overweight, Chronic Pain, Obesity | 12 |
| Kaiser Permanente Riverside Medical Center | Age-Related Macular Degeneration, Intracerebral Hemorrhage, Pneumonia | 6 |
| Clinical Innovations, Inc. dba CITrials | Bipolar Disorder, Bipolar Disorder Type I With Mania, Bipolar Disorder Type I With Mania or Mania With Mixed Features | 4 |
| Riverside Clinical | Alzheimers Disease, Obesity, Abdominal, Overweight | 3 |
| Apex Research | Arteriovenous Fistula, Chronic Kidney Disease, Dialysis; Complications | 2 |
| Neurocrine Clinical Site | Schizophrenia | 2 |
| University of California, Riverside | Cognitive Change, Hearing Handicap | 2 |
| CenExel | Bipolar I Disorder, Depressive Disorder, Major | 2 |
| ADARx Clinical Site | Geographic Atrophy Secondary to Age-related Macular Degeneration | 1 |
| Apex Research of Riverside | Venous Occlusion, Venous Stenosis | 1 |
| Artemis Institute for Clinical Research - Riverside | Diabetic Peripheral Neuropathic Pain | 1 |
| CARI Clinical Trials | Venous Thromboembolism (VTE) | 1 |
| CARI Clinical Trials INC | Ventral Hernia | 1 |
| CenExel CIT IE | Schizophrenia Disorders | 1 |
| Clinical Innovations Inc | Bipolar Depression, Bipolar Disorder, Bipolar I Disorder | 1 |
| Clinical Innovations, Inc | Bipolar Depression, Bipolar Disorder, Bipolar I Disorder | 1 |
| Clinical Innovations, Inc. | Schizophrenia | 1 |
| GSK Investigational Site | Influenza, Human | 1 |
| Glenwood Surge Ctr | Lumbar Spinal Stenosis | 1 |
| HCA Riverside Community Hospital | Interstitial Lung Disease (ILD), Pulmonary Hypertension | 1 |
| Kaiser Permanente - Riverside Medical Center | Neovascular Age-related Macular Degeneration | 1 |
| Kaiser Permanente Southern California | Prostatic Neoplasms, Castration-Resistant | 1 |
| Kaiser Permanente-Riverside Medical Center | Uveal Melanoma | 1 |
| Kindful Restoration | HIV Prevention, Hepatitis C Virus (HCV), Incarceration | 1 |
Recruiting trials in Riverside grouped by therapeutic area, drawn from ClinicalTrials.gov. Each bucket shows the most recent example studies.
There are approximately 91 recruiting clinical trials in Riverside, California listed on ClinicalTrials.gov. The number changes weekly as new studies open and others close enrollment.
Most recruiting trials in Riverside compensate participants for their time, travel, and study visits. Compensation varies by sponsor, study phase, and visit requirements — the exact amount is disclosed by the study team during the informed consent process.
Eligibility depends on the specific study. Each trial defines its own inclusion criteria (age, diagnosis, medical history, prior treatments) and exclusion criteria. Both patients with specific conditions and healthy volunteers can qualify, depending on the study design.
The most common conditions under active study in Riverside include Schizophrenia (6), Bipolar Disorder (3), Bipolar I Disorder (3), Breast Cancer (3), among many others. Browse the list above to explore every recruiting trial.
Yes. Healthy-volunteer studies — often early-phase pharmacology or vaccine trials — recruit in Riverside on an ongoing basis. Use the "Healthy volunteers only" filter above to view trials that accept participants without the study's target condition.
Click any study title above to see the full study record, including eligibility criteria, visit schedule, and the study team's contact information. Reach out to the central contact or recruiting site directly — they will guide you through screening and informed consent.
Recruiting research sites in Riverside include Kaiser Permanente-Riverside, Artemis Institute for Clinical Research, Kaiser Permanente Riverside Medical Center, among others. Each site lists its open studies and contact information on the study record above — call or email the site coordinator to ask about screening for a specific protocol.
The largest active categories in Riverside are Cancer & tumors (24), Mental health & behavior (17), Neurology & pain (11). Use the filters above to narrow by therapeutic area, phase, age, or healthy-volunteer eligibility.