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California Paid Clinical Trials
A listing of 5599 clinical trials in California actively recruiting volunteers for paid trials and research studies in various therapeutic areas.
1657 - 1668 of 5599
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California is currently home to 5599 active clinical trials, seeking participants for engagement in research studies. These trials take place at a variety of cities in the state, including Los Angeles, San Francisco, San Diego and Sacramento. Whether you're a healthy volunteer interested in paid medical research or someone seeking trials related to a specific condition, the state offers a diverse array of opportunities in your vicinity.
Featured Trial
Paid Clinical Studies Nationwide
Recruiting
Nationwide clinical trials offered in your area. Some trials offering up to several thousand dollars in compensation for participation.
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Recruiting
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Conditions:
Overweight
Overweight and Obesity
Obesity
Weight Loss
Morbid Obesity
Parkinson's Foundation PD GENEration Genetic Registry
Recruiting
Development of a central repository for PD-related genomic data for future research.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/16/2025
Locations: University of California San Diego (UCSD), La Jolla, California
Conditions: Parkinson's Disease
A Clinical Trial Evaluating the Safety and Efficacy of a Single Subretinal Injection of AGTC-501 in Participants With XLRP
Recruiting
This study will evaluate and compare the safety, efficacy, and tolerability of 2 doses of a recombinant adeno-associated virus vector (AGTC-501/laruparetigene zovaparvovec )) to an untreated control group in male participants with X-linked retinitis pigmentosa caused by RPGR mutations.
Gender:
MALE
Ages:
Between 12 years and 50 years
Trial Updated:
05/16/2025
Locations: Children's Hospital Los Angeles, Los Angeles, California
Conditions: X-Linked Retinitis Pigmentosa
Study of Cretostimogene Given in Patients With Non-Muscle Invasive Bladder Cancer ,Unresponsive to Bacillus-Calmette-Guerin
Recruiting
This is a Phase 3, open-label, single arm trial designed to evaluate Cretostimogene patients with NMIBC who have failed prior BCG therapy. Up to approximately 115 CIS bladder cancer patients with or without HG Ta or HG T1 papillary disease will be enrolled under the original protocol through Amendment 4, which will comprise Cohort C. Cohort C is closed to enrollment.
Under Amendment 5-1, Cohort P was added to enroll up to 70 patients with HG Ta/T1 papillary bladder cancer.
Under Amendment 6, t... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/16/2025
Locations: University of California - Irvine, Irvine, California
Conditions: Non Muscle Invasive Bladder Cancer, High-grade Ta/ T1 Papillary Disease Bladder Cancer
DESTINY-Endometrial01: A Phase III Study of Trastuzumab Deruxtecan Plus Rilvegostomig or Pembrolizumab as First-Line Treatment of HER2-Expressing (IHC 3+/2+), Mismatch Repair Proficient (pMMR) Endometrial Cancer
Recruiting
DESTINY-Endometrial01 will investigate the efficacy of first-line T-DXd + rilvegostomig (Arm A) and/or T-DXd+ pembrolizumab (Arm B) when compared to chemotherapy (carboplatin + paclitaxel) + pembrolizumab (Arm C), by assessment of progression free survival (PFS), as assessed by BICR, in participants with HER2-expressing (IHC 3+/2+), pMMR, primary advanced (Stage III/IV) or recurrent EC.
Gender:
FEMALE
Ages:
18 years and above
Trial Updated:
05/15/2025
Locations: Research Site, La Jolla, California
Conditions: Endometrial Cancer
Virtual Reality Interventions for the Improvement of Depression, Anxiety and Pain in Patients With Head and Neck Cancer and Caregivers
Recruiting
This clinical trial tests how well a three-dimensional (3D) mindfulness virtual reality (VR) versus (vs) two-dimensional (2D) non-immersive interventions works in improving depression, anxiety, pain, and/or stress in patients with head and neck cancer (HNC) undergoing radiation or chemoradiation (C/RT), and their caregivers. HNC patients undergoing C/RT can experience higher levels of depression, anxiety, distress and pain that negatively impact their quality of life. VR allows for a realistic e... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/15/2025
Locations: City of Hope Medical Center, Duarte, California
Conditions: Head and Neck Carcinoma
A Study of TAK-360 in Adults With Narcolepsy Without Cataplexy (NT2)
Recruiting
Narcolepsy without cataplexy or Narcolepsy Type 2 (NT2) is a lifelong condition that makes people very sleepy during the day, regardless of how much sleep they get at night. People with NT2 may fall asleep suddenly, have trouble staying awake during the day, or may not be able to sleep well at night. They may have difficulty thinking clearly, paying attention, or remembering things, during the day. These symptoms can make daily activities like driving, working, or caring for their families chall... Read More
Gender:
ALL
Ages:
Between 18 years and 70 years
Trial Updated:
05/15/2025
Locations: Takeda Site 14, Redwood City, California
Conditions: Narcolepsy Type 2
Phase 1b/2a Randomized Double-blind Study to Investigate Safety Tolerability PK PD Preliminary Efficacy of Oral Administration of SNIPR001 in Patients With Hematologic Malignancy Scheduled for Allogeneic Hematopoietic Stem-Cell Transplant Receiving FQ Prophylaxis & Harboring FQR Ecoli PreTransplant
Recruiting
This is a Phase 1b/2a study in allogenic hematopoetic stem cell transplant patients to investigate the safety, PK, PD and preliminary efficacy of multiple oral administrations of SNIPR001 when given concomitantly with SoC levofloxacin.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/15/2025
Locations: City of Hope, Duarte, California
Conditions: E Coli Infections, Allogenic Transplant Patients
Efficacy and Safety of Petrelintide in Participants With Overweight or Obesity and Type 2 Diabetes (ZUPREME 2)
Recruiting
The main purpose of this study is to investigate efficacy and safety of three doses of petrelintide versus placebo in participants with overweight or obesity and type 2 diabetes.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/15/2025
Locations: AMCR Institute, Inc., Escondido, California
Conditions: Overweight, Type 2 Diabetes, Obesity
Study to Investigate the Effect of Hepatic Impairment on the Pharmacokinetics, Safety, and Tolerability of AZD5004
Recruiting
This is a Phase I, multicentre, single-dose, non-randomised, open-label, parallel-group study to examine the PK, safety, and tolerability of AZD5004 in male and female participants with mild, moderate, and severe hepatic impairment compared with participants with normal hepatic function.
Gender:
ALL
Ages:
Between 18 years and 80 years
Trial Updated:
05/15/2025
Locations: Research Site, Lake Forest, California
Conditions: Hepatic Impairment
Evaluation of Efficacy and Safety of Suzetrigine for Pain Associated With Diabetic Peripheral Neuropathy
Recruiting
The purpose of this study is to evaluate the efficacy, safety, and tolerability of Suzetrigine (SUZ) in participants with pain associated with diabetic peripheral neuropathy (DPN).
Gender:
ALL
Ages:
Between 18 years and 80 years
Trial Updated:
05/15/2025
Locations: Neuro-Pain Medical Center, Fresno, California
Conditions: Diabetic Peripheral Neuropathic Pain
Testing Olaparib for One or Two Years, With or Without Bevacizumab, to Treat Ovarian Cancer
Recruiting
This phase III trial compares the effect of olaparib for one year versus two years, with or without bevacizumab, for the treatment of BRCA 1/2 mutated or homologous recombination deficient stage III or IV ovarian cancer. Olaparib is a polyadenosine 5'-diphosphoribose polymerase (PARP) enzyme inhibitor and may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Bevacizumab is in a class of medications called antiangiogenic agents. It works by stopping the format... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/15/2025
Locations: Kaiser Permanente-Deer Valley Medical Center, Antioch, California
Conditions: Fallopian Tube Endometrioid Adenocarcinoma, Fallopian Tube High Grade Serous Adenocarcinoma, FIGO Stage III Ovarian Cancer 2014, FIGO Stage IV Ovarian Cancer 2014, Ovarian Carcinoma, Primary Peritoneal Endometrioid Adenocarcinoma, Primary Peritoneal High Grade Serous Adenocarcinoma, Ovarian High Grade Serous Adenocarcinoma, Ovarian High Grade Endometrioid Adenocarcinoma
Phase 1 Study of GC1130A in Pediatric Patients With Sanfilippo Syndrome Type A (MPS IIIA)
Recruiting
The purpose of this study is to evaluate the safety, tolerability, efficacy, pharmacokinetics and pharmacodynamics of recombinant human heparan N-sulfatase (rhHNS, GC1130A) administered via intracerebroventricular access device in pediatric patients with Sanfilippo Syndrome Type A (MPS IIIA).
Gender:
ALL
Ages:
Between 24 months and 72 months
Trial Updated:
05/15/2025
Locations: UCSF Benioff Children's Hospital, Oakland, California
Conditions: Sanfilippo Syndrome Type a
1657 - 1668 of 5599
Kaiser Permanente houses over 6,000 physicians in southern California and it is also one of the largest research centers on the state. On its clinical trial division, Kaiser Permanente conducts clinical trials of almost every specialty funded by pharmaceutical companies, government, and foundations.
The Cedars-Sinai Medical Center located in Los Angeles is one of the largest research centers owned and operated by a private hospital in the United States. Focusing on biomedical, cancer, and heart research among other specialties, you can find almost any type of clinical trials for both health and non-healthy volunteers at the research division of Cedar-Sinai Medical Center.
There are around 100,000 clinical trials happening every year across the United States about almost every condition out there. While most clinical trials are testing drugs or medical devices there are also many behavioral and observational trials going on at any point in time. Many paid research studies are held at these California locations.
Clinical trials are incredibly important for making new medical and scientific discoveries, finding new and better methods for diagnosing medical conditions early, testing new interventions, and even developing safer and more effective surgical procedures.
In order for all these discoveries to me made available to the general population they need to go through years of rigorous testing both in healthy and non-healthy volunteers. During those years, medical professionals follow a protocol that has been previously approved by the FDA or other regulatory agency to test the effectiveness and safety of their discovery.
Other people choose to participate in a clinical trial because they feel it is a good way to contribute to the advancement of medical knowledge and that their participation can help many people in the future. The following lists of trials are broken down by condition, and to find a specific clinical trial in your area click through to clinicaltrials.gov.
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