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

Paid Clinical Trials in Fullerton, CA

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

3,251 clinical trials are currently recruiting participants within 30 miles of Fullerton. Listings below come straight from the official NIH registry, alongside the area's top-rated research centers with real Google reviews.

3,251studies recruiting
9+research centers nearby
4condition categories
Live from the NIH registry

Studies recruiting near Fullerton right now

Top 25 of 3,251 recruiting studies, sorted by proximity — each links to its official registry page

One-Time DNA Study for Vasculitis

Eosinophilic Granulomatosis With Polyangiitis (Churg-Strauss), Giant Cell Arteritis N/A Observational 1,000 participants sought
Cedars-Sinai Medical Center — Los Angeles, California (21.5 mi) · Sponsor: University of Pennsylvania
See eligibility & contact on ClinicalTrials.gov (NCT01241305)

Emicizumab for Severe Von Willebrand Disease (VWD) and VWD/Hemophilia A

Von Willebrand Disease, Type 3, Concomitant VWD and Hemophilia Phase 1 Interventional 40 participants sought
The Center for Comprehensive Care and Diagnosis of Inherited Blood Disorders (CIBD) — Orange, California (7.9 mi) · Sponsor: Bleeding and Clotting Disorders Institute Peoria, Illinois
See eligibility & contact on ClinicalTrials.gov (NCT05500807)

Study to Assess the Impact of the Urine Test Cxbladder Triage Plus on the Number of Cystoscopies Performed on Patients With Invisible Blood in Their Urine.

Hematuria - Cause Not Known N/A Interventional 1,000 participants sought
Urology Group of Southern California — Los Angeles, California (21.5 mi) · Sponsor: Pacific Edge Limited
See eligibility & contact on ClinicalTrials.gov (NCT06394869)

A Clinical Study of Zilovertamab Vedotin (MK-2140) Plus Rituximab Plus Cyclophosphamide, Doxorubicin, and Prednisone (R-CHP) Versus Polatuzumab Vedotin Plus R-CHP in People With Diffuse Large B-cell Lymphoma (DLBCL) (MK-2140-011/waveLINE-011)

Lymphoma, Large B-Cell, Diffuse Phase 2 Interventional 594 participants sought
City of Hope Comprehensive Cancer Center ( Site 0191) — Duarte, California (17.9 mi) · Sponsor: Merck Sharp & Dohme LLC
See eligibility & contact on ClinicalTrials.gov (NCT06890884)

Phase 3 Study of RLY-2608 + Fulvestrant vs Capivasertib + Fulvestrant as Treatment for Locally Advanced or Metastatic PIK3CA-mutant HR+/HER2- Breast Cancer

PIK3CA Mutation, HER2- Negative Breast Cancer Phase 3 Interventional 540 participants sought
City of Hope National Medical Center — Duarte, California (17.9 mi) · Sponsor: Relay Therapeutics, Inc.
See eligibility & contact on ClinicalTrials.gov (NCT06982521)

A Study in People With Diabetic Macular Edema to Test How Well Different Doses of BI 3812465 Are Tolerated

Diabetic Macular Edema Phase 1, Phase 2 Interventional 49 participants sought
Retina Associates of Southern California — Huntington Beach, California (16.0 mi) · Sponsor: Boehringer Ingelheim
See eligibility & contact on ClinicalTrials.gov (NCT07553429)

Post-Marketing Study for Early-Stage Low-Risk Breast Cancer Treatment Using ProSense® Cryoablation (ChoICE Trial)

Low-Risk, Early Stage Breast Cancer N/A Interventional 400 participants sought
Glendale Adventist Medical Center d/b/a Adventist Health Glendale — Glendale, California (25.9 mi) · Sponsor: IceCure Medical Ltd.
See eligibility & contact on ClinicalTrials.gov (NCT07629206)

Outcomes Associated With Tirbanibulin for Large Field Application on the Face in the U.S (CLEAR)

Actinic Keratosis (AK) N/A Observational 30 participants sought
Ablon Skin Institute and Research Center — Manhattan Beach, California (27.7 mi) · Sponsor: Avant Health LLC
See eligibility & contact on ClinicalTrials.gov (NCT07657988)

Chemoimmunotherapy and Allogeneic Stem Cell Transplant for NK T-cell Leukemia/Lymphoma

NK-Cell Lymphoma, NK-Cell Leukemia EARLY/Phase 1 Interventional 40 participants sought
Children's Hospital Orange County — Orange, California (7.9 mi) · Sponsor: New York Medical College
See eligibility & contact on ClinicalTrials.gov (NCT03719105)

Shorter Versus Extended Course of Antibiotic Therapy for Necrotizing Soft Tissue Infections

Necrotizing Soft Tissue Infection N/A Observational 50 participants sought
University of California Irvine Medical Center — Orange, California (7.9 mi) · Sponsor: University of California, Irvine
See eligibility & contact on ClinicalTrials.gov (NCT06002607)

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
Children's Hospital of Orange County — Orange, California (7.9 mi) · Sponsor: National Cancer Institute (NCI)
See eligibility & contact on ClinicalTrials.gov (NCT06124157)

Motivation for IV Alcohol Self-Administration in Humans

Alcohol Use Disorder Phase 2 Interventional 210 participants sought
University of California, Los Angeles — Los Angeles, California (21.5 mi) · Sponsor: University of California, Los Angeles
See eligibility & contact on ClinicalTrials.gov (NCT06494891)

Implementing a Decision Support Tool to Prevent Community-Acquired Pressure Injury in Spinal Cord Injury (SCI) in the Spinal Cord Injury Clinic

Spinal Cord Injury, Pressure Injury N/A Interventional 808 participants sought
VA Long Beach Healthcare System, Long Beach, CA — Long Beach, California (17.0 mi) · Sponsor: VA Office of Research and Development
See eligibility & contact on ClinicalTrials.gov (NCT06529094)

A Study to Investigate the Safety and Efficacy of MEDI0618 Compared to Placebo in Adult Participants With Episodic Migraine

Migraine Phase 2 Interventional 488 participants sought
Clinical Research Institute, LCC — Los Angeles, California (21.5 mi) · Sponsor: AbbVie
See eligibility & contact on ClinicalTrials.gov (NCT06602479)

Phase 2 Study to Evaluate EI-001 in Non-segmental Vitiligo Patients

Non-segmental Vitiligo Phase 2 Interventional 45 participants sought
Marvel Clinical Research — Huntington Beach, California (16.0 mi) · Sponsor: Elixiron Immunotherapeutics (Hong Kong) Ltd.
See eligibility & contact on ClinicalTrials.gov (NCT07223229)

Fibromyalgia Response With Esreboxetine Evaluated Using a Randomized Withdrawal Research Design

Fibromyalgia Phase 3 Interventional 620 participants sought
Clinical Research Site — Anaheim, California (3.5 mi) · Sponsor: Axsome Therapeutics, Inc.
See eligibility & contact on ClinicalTrials.gov (NCT07398417)

Regional Blocks for Lateral Condyle Fractures

Fractures, Closed, Humeral Fractures Phase 4 Interventional 90 participants sought
Orthopaedic Institute for Children — Los Angeles, California (21.5 mi) · Sponsor: University of California, Los Angeles
See eligibility & contact on ClinicalTrials.gov (NCT03796572)

A Study Assessing Corneal Endothelial Cells in Participants With Neovascular Age-related Macular Degeneration (nAMD) Treated With the Port Delivery System With Ranibizumab (PDS)

Neovascular Age-related Macular Degeneration Phase 4 Interventional 188 participants sought
Orange County Retina Med Group — Santa Ana, California (10.2 mi) · Sponsor: Genentech, Inc.
See eligibility & contact on ClinicalTrials.gov (NCT04853251)

A Dose Escalation and Dose Expansion Study of Intratumoral ONM-501 Alone and in Combination With Cemiplimab in Patients With Advanced Solid Tumors and Lymphomas.

Triple Negative Breast Cancer, Diffuse Large B Cell Lymphoma Phase 1 Interventional 168 participants sought
California Research Institute — Los Angeles, California (21.5 mi) · Sponsor: OncoNano Medicine, Inc.
See eligibility & contact on ClinicalTrials.gov (NCT06022029)

PEACE Trial: Postpartum Evaluation of Antihypertensive Cessation and Efficacy

Postpartum Hypertension (PPHT) Phase 4 Interventional 110 participants sought
UCLA Ronald Reagan — Los Angeles, California (21.5 mi) · Sponsor: University of California, Los Angeles
See eligibility & contact on ClinicalTrials.gov (NCT06915792)

Developing an Innovative Decision Support Tool for Pediatric Neuromuscular Scoliosis

Children With Medical Complexity (CMC), Multiple Chronic Conditions N/A Interventional 110 participants sought
Children's Hospital Los Angeles — Los Angeles, California (21.5 mi) · Sponsor: University of Utah
See eligibility & contact on ClinicalTrials.gov (NCT07167927)
Actively enrolling

Studies you may be able to join near Fullerton

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 studies for chronic kidney disease

This research platform is enrolling Black and African American adults in eligible areas who have been diagnosed with chronic kidney disease. Compensation may be available. The study team confirms eligibility 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

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 Fullerton

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

Kinetic Clinical Research

★ 5.0
215 N State College Blvd A, Anaheim, CA 92806
(657) 230-7120

CenExel Anaheim CA

★ 4.2
2441 W La Palma Ave Ste 140, Anaheim, CA 92801
(714) 774-7777
"Care Bears! Care Bears! Care Bears! So I recently stood in house at this facility for a month long. It definitely was an experience I'd never witness…"
— Richard Branscombe, 5★

Anaheim Clinical Trials-New Facility

★ 3.8
2441 W La Palma Ave Ste 140, Anaheim, CA 92801
(714) 774-7777
"Clean and friendly staff.<br>ENTRANCE suite # 140, in the middle of facade facing LA PALMA, ring the bell.<br>Very cozy seating in spacious reception…"
— A A, 5★

Advanced Research Center, Inc.

★ 3.8
1020 S Anaheim Blvd #316, Anaheim, CA 92805
(714) 999-6688
"They kept calling me and texting me after I told them I wasn't interested, it was at a point of harassment that they used different numbers. I had to…"
— E, 1★

Orange County Research Institute

1801 W Romneya Dr #409, Anaheim, CA 92801
(714) 635-7100

Long Beach Research Institute

★ 4.7
3300 E South St #205, Long Beach, CA 90805
(562) 471-3773
"Came here for a research study. Great place."
— Anthony Roberts, 5★

NRC Research Institute

★ 4.7
1010 W Chapman Ave, Orange, CA 92868
(714) 289-1100
"Great women nurses and what not fun place to get paid amazing place helped me restart my life thank you guys here'sy adres 9460 carnation Westminster…"
— Hibrahim Lozano, 5★

Knowledge Research Center

★ 5.0
1010 W La Veta Ave #575, Orange, CA 92868
(657) 247-0087

Clinical Resolution Laboratory, Inc.

★ 3.4
1530 W Moonstone St, Brea, CA 92821
(213) 384-0500
"I had a major delivery issue with FedEx, but Maria from customer support was incredible! My package got lost in the system, but She stayed with me, c…"
— Kumi Nakamura, 5★

Clinical trials in Fullerton: what's recruiting

The Fullerton area currently has 3,251 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 Fullerton, the most active research areas are:

  • Cancer & Oncology7 studies
  • Heart & Vascular2 studies
  • Brain & Mental Health1 studies
  • Diabetes & Metabolism1 studies

Every listing shows the study phase, the recruiting site and its distance from Fullerton, 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 Fullerton

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.

Fullerton 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 Fullerton?
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.
How do I join a study in Fullerton, 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.
How often do new paid studies open in Fullerton?
Constantly — trials open and close enrollment every week. This page is refreshed weekly from the NIH registry. Join the email alert to be notified when a new study opens within 30 miles of Fullerton.
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 Fullerton typically complete one or two studies per year.

Paid clinical trials near Fullerton

Other metros within reach

Anaheim, CA3,193 Garden Grove, CA3,186 Santa Ana, CA1,955 Huntington Beach, CA2,867 Pomona, CA3,148 Long Beach, CA3,366 Irvine, CA1,537 Ontario, CA1,726

By condition

Eligibility and exclusions, condition by condition

Alcoholic Liver Disease in Fullerton Chronic Kidney Disease (HealthMatch) in Fullerton Bladder Issues Due To Spinal Cord Injury in Fullerton All conditions

More of CA

Long Beach3,366 Torrance3,258 Anaheim3,193 Garden Grove3,186 Pomona3,148 Glendale2,964 Los Angeles2,949 Huntington Beach2,867 Santa Clarita2,384 Hayward2,257 Oakland2,248

New paid studies open every week

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