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

Paid Clinical Trials in Riverside, CA

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

936 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.

936studies recruiting
9+research centers nearby
6condition categories
Live from the NIH registry

Studies recruiting near Riverside right now

Top 25 of 936 recruiting studies, sorted by proximity — each links to its official registry page

A Study Testing the Combination of Dasatinib or Imatinib to Chemotherapy Treatment With Blinatumomab for Children, Adolescents, and Young Adults With Philadelphia Chromosome Positive (Ph+) or ABL-Class Philadelphia Chromosome-Like (Ph-Like) B-cell Acute Lymphoblastic Leukemia (B-ALL)

B Acute Lymphoblastic Leukemia Phase 2 Interventional 222 participants sought
Loma Linda University Medical Center — Loma Linda, California (10.8 mi) · Sponsor: National Cancer Institute (NCI)
See eligibility & contact on ClinicalTrials.gov (NCT06124157)

Study of ALXN1920 in Adult Participants With Primary Membranous Nephropathy (PMN)

Primary Membranous Nephropathy Phase 2 Interventional 30 participants sought
Research Site — Loma Linda, California (10.8 mi) · Sponsor: Alexion Pharmaceuticals, Inc.
See eligibility & contact on ClinicalTrials.gov (NCT07157787)

GATEWAY: Safety Evaluation of the MiniMed™ NMX8-AID System in Children and Adults Living With Diabetes

Type 1 Diabetes Mellitus, Type 2 Diabetes Mellitus N/A Interventional 400 participants sought
Loma Linda University Medical Center — Loma Linda, California (10.8 mi) · Sponsor: Medtronic MiniMed, Inc.
See eligibility & contact on ClinicalTrials.gov (NCT07228117)

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)

A Study of Cemiplimab Plus Chemotherapy Versus Cemiplimab Plus Chemotherapy Plus Other Cancer Treatments for Adult Patients With Operable Non-Small Cell Lung Cancer (NSCLC)

Non-Small Cell Lung Cancer Phase 2 Interventional 120 participants sought
University of California Irvine — Orange, California (28.3 mi) · Sponsor: Regeneron Pharmaceuticals
See eligibility & contact on ClinicalTrials.gov (NCT06465329)

A Study to Evaluate Safety, Tolerability and Efficacy of AP306 at Fixed Doses in Dialysis Participants With Hyperphosphatemia

Hyperphosphatemia, Chronic Kidney Disease Requiring Chronic Dialysis Phase 2 Interventional 168 participants sought
North America Research Institute — San Dimas, California (26.3 mi) · Sponsor: R1 Therapeutics
See eligibility & contact on ClinicalTrials.gov (NCT06712654)

Inclisiran Versus Placebo for the Prevention of Major Adverse Cardiovascular and Limb Events in Patients Undergoing Percutaneous Coronary Intervention or Peripheral Endovascular Intervention

Percutaneous Coronary Intervention, Peripheral Endovascular Intervention Phase 4 Interventional 6,000 participants sought
Riverside Community Hospital — Riverside, California (1.1 mi) · Sponsor: Duke University
See eligibility & contact on ClinicalTrials.gov (NCT06909565)

Lung-MAP: A Master Screening Protocol for Previously-Treated Non-Small Cell Lung Cancer

Previously Treated Non-Small Cell Lung Cancer Phase 2, Phase 3 Interventional 10,000 participants sought
Kaiser Permanente-Riverside — Riverside, California (1.1 mi) · Sponsor: SWOG Cancer Research Network
See eligibility & contact on ClinicalTrials.gov (NCT03851445)

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)

Evaluating the Impact of Training for IHSS Workers

Home Care for Elderly or Disabled Individuals N/A Interventional 2,500 participants sought
San Bernardino County — San Bernardino, California (13.2 mi) · Sponsor: Abdul Latif Jameel Poverty Action Lab
See eligibility & contact on ClinicalTrials.gov (NCT06205433)

A Study of Vepugratinib (LY3866288) in Participants With Cancer in the Urinary Tract

Carcinoma, Transitional Cell, Urinary Bladder Neoplasms Phase 3 Interventional 450 participants sought
University of California, Irvine (UCI) Health - UC Irvine Medical Center — Orange, California (28.3 mi) · Sponsor: Eli Lilly and Company
See eligibility & contact on ClinicalTrials.gov (NCT07218380)

Multicenter Study of Lumateperone for the Treatment of Irritability Associated With Autism Spectrum Disorder in Pediatric Patients

Irritability Associated With Autism Spectrum Disorder Phase 3 Interventional 160 participants sought
Inland Psychiatric Medical Group Inc — Redlands, California (14.6 mi) · Sponsor: Intra-Cellular Therapies, Inc.
See eligibility & contact on ClinicalTrials.gov (NCT06690398)

Efficacy and Safety of Extended TARPEYO® Treatment Beyond 9 Months in Adult Patients With Primary IgA Nephropathy

IgA Nephropathy Phase 4 Interventional 60 participants sought
Loma Linda University — San Bernardino, California (13.2 mi) · Sponsor: Calliditas Therapeutics AB
See eligibility & contact on ClinicalTrials.gov (NCT06712407)

Recombinant Factor VIIa (rFVIIa) for Hemorrhagic Stroke Trial - Part 2

Intracerebral Hemorrhage Phase 3 Interventional 350 participants sought
Kaiser Permanente Riverside Medical Center — Riverside, California (1.1 mi) · Sponsor: Joseph Broderick, MD
See eligibility & contact on ClinicalTrials.gov (NCT07227246)

Study to Evaluate the Maximal Use of Ruxolitinib Cream in Adult and Adolescent Participants With Hidradenitis Suppurativa

Hidradenitis Suppurativa Phase 1 Interventional 24 participants sought
Children'S Hospital of Orange County — Orange, California (28.3 mi) · Sponsor: Incyte Corporation
See eligibility & contact on ClinicalTrials.gov (NCT07049575)

Evaluating the Efficacy and Safety of PT027 Compared With PT007 Administered As Needed in Participants 12 to < 18 Years of Age With Asthma

Asthma Phase 3 Interventional 440 participants sought
Research Site — Riverside, California (1.1 mi) · Sponsor: AstraZeneca
See eligibility & contact on ClinicalTrials.gov (NCT06307665)

This Study Will Explore Whether a Combination of the Investigational Drug Mevrometostat (PF-06821497) and Enzalutamide Will Work Better Than Taking Enzalutamide Alone in Participants With mCSPC Who Are ARPI naïve.

Metastatic Castration Sensitive Prostate Cancer (mCSPC), Hormone Sensitive Prostate Cancer Phase 3 Interventional 1,000 participants sought
UCLA Hematology/Oncology - Laguna Hills — Laguna Hills, California (29.0 mi) · Sponsor: Pfizer
See eligibility & contact on ClinicalTrials.gov (NCT07028853)

Non-Invasive Diagnosis of Pediatric Pulmonary Invasive Mold Infections

Pulmonary Invasive Fungal Infections, Pulmonary Invasive Aspergillosis N/A Observational 400 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 (NCT03827694)
Actively enrolling

Studies you may be able to join near Riverside

These studies are recruiting through partner research networks. We may be paid a referral fee if you complete their screening form — this never changes what you pay (nothing) or the compensation the study offers you.

Research study for alcohol-related liver damage

Enrolling US adults aged 18 to 70 with alcohol-induced liver damage and a history of heavy drinking. Not open to people with a recent stroke, heart attack, dialysis, or who take blood thinners.

Screening is free and takes a few minutes. Eligibility and any compensation are confirmed by the study team, not by this site.

Check your eligibility

Research study for bladder problems after spinal cord injury

This study is enrolling US adults aged 18 to 75 living with chronic involuntary bladder leakage caused by a spinal cord injury, for research including investigational gene therapy approaches. The study team confirms eligibility and any compensation before enrollment.

Screening is free and takes a few minutes. Eligibility and any compensation are confirmed by the study team, not by this site.

Check your eligibility
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 936 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 & Oncology9 studies
  • Heart & Vascular2 studies
  • Brain & Mental Health2 studies
  • Lungs & Breathing2 studies
  • Diabetes & Metabolism1 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, CA965 Corona, CA1,565 Moreno Valley, CA435 San Bernardino, CA460 Ontario, CA1,702 Rancho Cucamonga, CA1,472 Pomona, CA3,123 Mission Viejo, CA1,380

By condition

Eligibility and exclusions, condition by condition

Alcoholic Liver Disease in Riverside Bladder Issues Due To Spinal Cord Injury in Riverside All conditions

More of CA

Long Beach3,348 Torrance3,239 Fullerton3,230 Anaheim3,164 Garden Grove3,162 Pomona3,123 Glendale2,948 Los Angeles2,936 Huntington Beach2,847 Santa Clarita2,389 Hayward2,266 Oakland2,257

New paid studies open every week

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