Data sourced from ClinicalTrials.gov (NIH registry) Updated weekly IRB-supervised studies only
Home/CA/Riverside
Updated July 2026 from ClinicalTrials.gov

Paid Clinical Trials in Riverside, CA

Studies commonly pay $75 to $4,500 per completed study

934 clinical trials are currently recruiting participants within 30 miles of Riverside. Listings below come straight from the official NIH registry, alongside the area's top-rated research centers with real Google reviews.

934studies recruiting
9+research centers nearby
6condition categories
Live from the NIH registry

Studies recruiting near Riverside right now

Top 25 of 934 recruiting studies, sorted by proximity — each links to its official registry page

A Study of NX-2127 in Adults With Relapsed/Refractory B-cell Malignancies

Chronic Lymphocytic Leukemia (CLL), Small Lymphocytic Lymphoma (SLL) Phase 1 Interventional 248 participants sought
University of California Irvine — Orange, California (28.3 mi) · Sponsor: Nurix Therapeutics, Inc.
See eligibility & contact on ClinicalTrials.gov (NCT04830137)

Testing Different Dosing Schedules of the Anti-cancer Drug, Lutetium 177Lu PSMA RLT and Its Effect on Patients With Advanced Prostate Cancer, RECIPROCAL Trial

Metastatic Castration-Resistant Prostate Carcinoma, Metastatic Prostate Adenocarcinoma Phase 3 Interventional 1,524 participants sought
UC Irvine Health/Chao Family Comprehensive Cancer Center — Orange, California (28.3 mi) · Sponsor: Alliance for Clinical Trials in Oncology
See eligibility & contact on ClinicalTrials.gov (NCT07200830)

A Study to Learn How Avacincaptad Pegol (Izervay™) is Used in Clinical Practice in People Who Have Geographic Atrophy

Geographic Atrophy, Macular Degeneration N/A Observational 500 participants sought
Retina Consultants of Southern CA — Redlands, California (14.6 mi) · Sponsor: Astellas Pharma Global Development, Inc.
See eligibility & contact on ClinicalTrials.gov (NCT06779773)

Adjuvant Sacituzumab Govitecan and Nivolumab in Muscle-Invasive Urothelial Carcinoma at High-Risk Recurrence

Urothelial Carcinoma, Muscle-invasive Bladder Cancer Phase 2 Interventional 23 participants sought
Chao Family Comprehensive Cancer Center, University of California, Irvine — Orange, California (28.3 mi) · Sponsor: University of California, Irvine
See eligibility & contact on ClinicalTrials.gov (NCT06682728)

Testing What Happens When an Immunotherapy Drug (Pembrolizumab) is Given by Itself Compared to the Usual Treatment of Chemotherapy With Radiation After Surgery for Recurrent Head and Neck Squamous Cell Carcinoma

Recurrent Head and Neck Squamous Cell Carcinoma, Recurrent Hypopharyngeal Squamous Cell Carcinoma Phase 2 Interventional 188 participants sought
Kaiser Permanente-Ontario — Ontario, California (17.0 mi) · Sponsor: National Cancer Institute (NCI)
See eligibility & contact on ClinicalTrials.gov (NCT04671667)

Phase 2 Trial of Icovamenib in Participants With Type 2 Diabetes Who Are Not Achieving Glycemic Targets

Type 2 Diabetes Phase 2 Interventional 60 participants sought
Catalina Research Institute, LLC — Montclair, California (19.4 mi) · Sponsor: Biomea Fusion Inc.
See eligibility & contact on ClinicalTrials.gov (NCT07502495)

Comparison of Uncomplicated Candidemia Therapy Duration in Children

Invasive Candidiasis N/A Interventional 420 participants sought
Children's Hospital of Orange County — Orange, California (28.3 mi) · Sponsor: Arkansas Children's Hospital Research Institute
See eligibility & contact on ClinicalTrials.gov (NCT05763251)

PhI Pilot Study Pafolacianine Inject for Intraoperative Imaging on Outcomes of GI Cancer Peritoneal Carcinomatosis

Gastrointestinal Cancer, Peritoneal Carcinomatosis EARLY/Phase 1 Interventional 10 participants sought
Chao Family Comprehensive Cancer Center, University of California, Irvine — Orange, California (28.3 mi) · Sponsor: University of California, Irvine
See eligibility & contact on ClinicalTrials.gov (NCT06511037)

Wound Irrigation With Saline Versus Hypodilute-chlorhexidine After Cesarean Section (WISHES Study)

Cesarean Section Complications, Cesarean Section; Infection N/A Interventional 400 participants sought
Loma Linda University — Loma Linda, California (10.8 mi) · Sponsor: Loma Linda University
See eligibility & contact on ClinicalTrials.gov (NCT06339203)

Study of TJ033721 (Givastomig) in Subjects With Advanced or Metastatic Solid Tumors

Solid Tumor, Advanced Cancer Phase 1 Interventional 330 participants sought
Stern Center for Cancer Clinical Trials and Research — Orange, California (28.3 mi) · Sponsor: I-Mab Biopharma US Limited
See eligibility & contact on ClinicalTrials.gov (NCT04900818)

A Study to Assess the Safety and Efficacy of Different Doses of ELV001 to Treat Active Rheumatoid Arthritis in Patients With an Inadequate Response to Methotrexate and Tumor Necrosis Factor Inhibition (START SYNERGY)

Active Rheumatoid Arthritis Phase 2 Interventional 180 participants sought
Solace Clinical Research - Populace Health (Network) — Tustin, California (28.1 mi) · Sponsor: Elevara Medicines Limited
See eligibility & contact on ClinicalTrials.gov (NCT07409103)

Efficacy of Preoperative Administration of Gabapentin in 3rd Molar Dental Extraction.

Dental Pain and Sensation Disorder, Pain, Postoperative Phase 4 Interventional 98 participants sought
Loma Linda University Health — Loma Linda, California (10.8 mi) · Sponsor: Loma Linda University
See eligibility & contact on ClinicalTrials.gov (NCT04860141)

Long-Term Safety of Lutetium (177Lu) Vipivotide Tetraxetan in Participants With Prostate Cancer

Prostate Cancer Phase 4 Interventional 700 participants sought
St. Joseph Hospital — Orange, California (28.3 mi) · Sponsor: Novartis Pharmaceuticals
See eligibility & contact on ClinicalTrials.gov (NCT05803941)

A Study of Eltrekibart and Mirikizumab in Adult Patients With Moderately to Severely Active Ulcerative Colitis

Ulcerative Colitis, Ulcerative Colitis Chronic Phase 2 Interventional 140 participants sought
Prospective Research Innovations — Rancho Cucamonga, California (16.3 mi) · Sponsor: Eli Lilly and Company
See eligibility & contact on ClinicalTrials.gov (NCT06598943)

A Study to Investigate the Efficacy and Safety of Tezepelumab Compared With Placebo in Children 5 to < 12 Years Old With Severe Asthma

Asthma Phase 3 Interventional 231 participants sought
Research Site — Orange, California (28.3 mi) · Sponsor: AstraZeneca
See eligibility & contact on ClinicalTrials.gov (NCT06023589)

BiCaZO: A Study Combining Two Immunotherapies (Cabozantinib and Nivolumab) to Treat Patients With Advanced Melanoma or Squamous Cell Head and Neck Cancer, an immunoMATCH Pilot Study

Multiple conditions Phase 2 Interventional 150 participants sought
UC Irvine Health/Chao Family Comprehensive Cancer Center — Orange, California (28.3 mi) · Sponsor: National Cancer Institute (NCI)
See eligibility & contact on ClinicalTrials.gov (NCT05136196)

A Post-Authorisation Safety Study (PASS) of Patients Treated With Lonapegsomatropin

Growth Hormone Deficiency N/A Observational 500 participants sought
Ascendis Investigational Site — Orange, California (28.3 mi) · Sponsor: Ascendis Pharma Endocrinology Division A/S
See eligibility & contact on ClinicalTrials.gov (NCT05775523)

Dinutuximab With Chemotherapy, Surgery and Stem Cell Transplantation for the Treatment of Children With Newly Diagnosed High Risk Neuroblastoma

Ganglioneuroblastoma, Nodular, Neuroblastoma Phase 3 Interventional 478 participants sought
Loma Linda University Medical Center — Loma Linda, California (10.8 mi) · Sponsor: National Cancer Institute (NCI)
See eligibility & contact on ClinicalTrials.gov (NCT06172296)

Phase III, Open-label Study of First-line Osimertinib With or Without Datopotamab Deruxtecan for EGFRm Locally Advanced or Metastatic Non-small Cell Lung Cancer

Non-small Cell Lung Cancer Phase 3 Interventional 582 participants sought
Research Site — Orange, California (28.3 mi) · Sponsor: AstraZeneca
See eligibility & contact on ClinicalTrials.gov (NCT06350097)

A Study to Evaluate the Safety and Efficacy of Ruxolitinib Cream in Pediatric Participants With Nonsegmental Vitiligo

NonSegmental Vitiligo Phase 3 Interventional 180 participants sought
Empire Clinical Research — Pomona, California (22.0 mi) · Sponsor: Incyte Corporation
See eligibility & contact on ClinicalTrials.gov (NCT06548360)
Google-rated

Top-rated research centers in Riverside

Dedicated clinical research sites near you — with their real Google ratings, reviews and contact details

CenExel Riverside CA

★ 4.7
5700 Division St, Riverside, CA 92506
(866) 478-8391
"You have to experience it for yourself.."
— Jarad Racine, 5★

Riverside Clinical

3630 Central Ave Ste 8, Riverside, CA 92506
(951) 374-8000

Paid Clinical Trials Riverside

★ 5.0
4121 Brockton Ave #102, Riverside, CA 92501
(951) 778-1131
"Very professional.<br>Easy to understand.<br>Friendly"
— Susie Mierzwik, 5★

Probe Clinical Research

★ 3.3
4121 Brockton Ave #102, Riverside, CA 92501
(951) 778-1131
"My experience at Probe Research was great! I was invited to participate in the lumbosacral radiculopathy study. Melinda’s nursing skills were wonder…"
— C Lynn, 5★

Artemis Institute for Clinical Research

★ 4.9
11748 Magnolia Ave Ste D, Riverside, CA 92503
(951) 374-1190
"Friendly staff… Very clean facilities! Easy to find, plenty of parking. Thorough medical check & screening."
— Lee Joseph, 5★

Infinity Clinical Research

★ 3.5
1901 Town and Country Dr Ste 104, Norco, CA 92860
(714) 252-6689
"I just completed a year-long clinical research trial and had an excellent experience! The staff at the Norco location were always professional, knowl…"
— Jonnine Eras, 5★

Breakthrough Clinical Trials

★ 5.0
1830 E Commercenter Cir, San Bernardino, CA 92408
(909) 890-9222
"Honestly these are good people and they care about their patients I liked it from the start it's a good way to make money and be a good person"
— Paul Shields, 5★

Velocity Clinical Research

★ 4.5
650 E Hospitality Ln #200, San Bernardino, CA 92408
(951) 755-0222
"The staff was very nice to me and anytime I had a concern or anything needed a question on. They were always prompt to answer it and I highly recomme…"
— Laura, 5★

New Hope Research Development

★ 5.0
900 S Main St Ste 201, Corona, CA 92882
(951) 475-7065
"My experience was very good. The nurses and staff took great care of me and made sure I had all the ice chips I could stand while I was recovering..."
— Ingrid Bradley, 5★

Clinical trials in Riverside: what's recruiting

The Riverside area currently has 934 studies open to new participants, according to the ClinicalTrials.gov registry maintained by the U.S. National Institutes of Health. Among the studies closest to Riverside, the most active research areas are:

  • Cancer & Oncology10 studies
  • Immune & Skin2 studies
  • Heart & Vascular1 studies
  • Diabetes & Metabolism1 studies
  • Lungs & Breathing1 studies

Every listing shows the study phase, the recruiting site and its distance from Riverside, and links to the official registry page where eligibility criteria and study contacts are published. Compensation is set by each sponsor: industry surveys report typical payments of $75 to $4,500 per completed study, with short observational studies at the low end and multi-visit or overnight Phase 1 studies at the high end.

How to enroll in a paid study in Riverside

Start with a study whose condition matches your profile — or a healthy-volunteer study if you have no diagnosis. Contact the research site through the registry page, complete a short phone screen, then attend an in-person screening visit. If you qualify, the study team walks you through the informed consent document, which details every procedure, risk and payment before you commit. You can withdraw at any point, and enrollment is always free.

Riverside participants can also register with the dedicated research centers listed above — many maintain volunteer databases and call when a matching study opens — or sign up for our email alert below to hear when a new study starts recruiting within 30 miles of your ZIP code.

Frequently asked questions

Do I need to be sick to join a clinical trial in Riverside?
No. Many studies recruit healthy volunteers, especially early-phase studies run at dedicated research centers. Others need participants diagnosed with a specific condition. Every trial lists its eligibility criteria — age range, condition, medications — and the study team screens you before enrollment.
Are clinical trials in Riverside safe?
Every trial on this page is registered on ClinicalTrials.gov, the official NIH registry, and is overseen by an Institutional Review Board (IRB). Before joining you receive an informed consent document detailing procedures, risks and compensation. Participation is voluntary and you can withdraw at any time.
How do I join a study in Riverside, CA?
Pick a study that matches your profile, contact the research site (or apply through the study links on this page), pass a phone pre-screen, then attend an in-person screening visit. If you qualify, you review and sign the informed consent and the study begins. The process typically takes 1-3 weeks.
Is compensation for clinical trials taxable?
In the U.S., clinical trial compensation is generally considered taxable income, and research sites may issue a 1099 form for payments above $600 in a year. Reimbursements for travel or meals are typically treated differently. Consult a tax professional for your situation.
Can I be in more than one clinical trial at a time?
Generally no — most studies exclude participants currently enrolled in another trial, and paid Phase 1 studies enforce a washout period (often 30 days or more) between studies. Frequent healthy volunteers in Riverside typically complete one or two studies per year.

Paid clinical trials near Riverside

Other metros within reach

Fontana, CA958 Corona, CA1,557 Moreno Valley, CA438 San Bernardino, CA464 Ontario, CA1,685 Rancho Cucamonga, CA1,457 Pomona, CA3,119 Mission Viejo, CA1,371

More of CA

Long Beach3,341 Torrance3,236 Fullerton3,223 Anaheim3,155 Garden Grove3,152 Pomona3,119 Glendale2,957 Los Angeles2,943 Huntington Beach2,841 Santa Clarita2,395 Hayward2,256 Oakland2,249

New paid studies open every week

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