California is currently home to 5616 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.
Stereotactic Radiosurgery Compared With Hippocampal-Avoidant Whole Brain Radiotherapy (HA-WBRT) Plus Memantine for 5 or More Brain Metastases
NCT03550391
Recruiting
Stereotactic radiosurgery (SRS) is a commonly used treatment for brain tumors. It is a one-day (or in some cases two day), out-patient procedure during which a high dose of radiation is delivered to small spots in the brain while excluding the surrounding normal brain. Whole brain radiation therapy with hippocampal avoidance (HA-WBRT) is when radiation therapy is given to the whole brain, while trying to decrease the amount of radiation that is delivered to the area of the hippocampus. The hipp... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/10/2025
Locations: City of Hope Corona, Corona, California
Conditions: Brain Metastases
Register for Updates
Regional Radiotherapy in Biomarker Low-Risk Node Positive and T3N0 Breast Cancer
NCT03488693
Recruiting
The purpose of this study is to compare the effects on low risk breast cancer receiving usual care that includes regional radiation therapy, with receiving no regional radiation therapy. Researchers want to see if not giving this type of radiation treatment works as well at preventing breast cancer from coming back.
Gender:
FEMALE
Ages:
35 years and above
Trial Updated:
06/10/2025
Locations: Kaiser Permanente-Anaheim, Anaheim, California
Conditions: Breast Cancer
Register for Updates
ColoCare Study - Colorectal Cancer Cohort
NCT02328677
Recruiting
ColoCare is an international prospective cohort study of stage I-IV colorectal cancer patients (ICD-10 C18-C20).
Gender:
ALL
Ages:
Between 18 years and 89 years
Trial Updated:
06/10/2025
Locations: Cedars-Sinai Medical Center, Los Angeles, California
Conditions: Colorectal Cancer
Register for Updates
A Study to Evaluate the Safety of a Delivery Device for Administering LCTOPC1 in Participants With Spinal Cord Injury
NCT06841770
Recruiting
The DOSED clinical study evaluates the safety and utility of a novel delivery device to deliver LCTOPC1, a cell therapy, to the spinal cord of patients with a spinal cord injury (SCI). LCTOPC1 is designed to replace or support cells that are absent or dysfunctional due to traumatic injury, with a goal to help improve the quality of life and restore or augment functional activity in persons suffering from a traumatic cervical or thoracic injuries.
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
06/09/2025
Locations: University of California, San Diego, La Jolla, California
Conditions: Spinal Cord Injury Cervical, Spinal Cord Injury Thoracic, Spinal Cord Injury, Acute, Spinal Cord Injury, Spinal Cord Injury, Chronic
Register for Updates
To Investigate the Efficacy of Treatment With Oral NA-921 (Bionetide) Versus Placebo in Females With Rett Syndrome
NCT06840496
Recruiting
Primary Objective • To investigate the efficacy of treatment with oral Bionetide versus placebo in girls and women with Rett syndrome Key Secondary Objective • To investigate the efficacy of treatment with oral Bionetide versus placebo on ability to communicate in girls and women with Rett syndrome
Gender:
FEMALE
Ages:
Between 5 years and 20 years
Trial Updated:
06/09/2025
Locations: Biomed Testing Facility # BIO-05-92093, La Jolla, California
Conditions: Rett Syndrome
Register for Updates
A Proof-of-Concept Study to Assess the Efficacy, Safety and Tolerability of Itepekimab (Anti--IL-33 mAb) in Participants With Chronic Rhinosinusitis Without Nasal Polyps
NCT06691113
Recruiting
ACT18421 is a multinational, randomized, double-blind, placebo-controlled, parallel-group, Phase 2 study with 3 treatment groups. The purpose of the study is to evaluate the efficacy, safety and tolerability of 2 dosing regimens of itepekimab compared to placebo in male and female participants with chronic rhinosinusitis without nasal polyps (CRSsNP) aged 18 years of age and older. Study details include: * The study duration (4-week screening, 24--week intervention, 20--week safety followup) w... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/09/2025
Locations: Modena Allergy + Asthma- Site Number : 8400005, La Jolla, California
Conditions: Chronic Rhinosinusitis Without Nasal Polyps
Register for Updates
Dichoptic Treatment for Amblyopia in Children 8 to 12 Years of Age
NCT06524882
Recruiting
Participants eligible for the study will be randomly allocated (1:1:1) to receive either Luminopia dichoptic treatment while wearing optical correction if needed, Vivid Vision dichoptic treatment while wearing optical correction if needed, or continued optical correction alone if needed, with clinical assessments at 9- and 18-weeks post-randomization. At the 18-week primary outcome visit, participants who were randomly assigned to receive optical correction alone if needed with an IOD of 1 logM... Read More
Gender:
ALL
Ages:
Between 8 years and 12 years
Trial Updated:
06/09/2025
Locations: University Eye Center at Ketchum Health, Anaheim, California
Conditions: Amblyopia
Register for Updates
An Investigational Scan (89Zr-DFO-GmAb PET/CT) Compared to Contrast-Enhanced CT for the Detection of Recurrent Clear Cell Renal Cell Cancer After Surgery Comparing Carbonic Anhydrase IX (CAIX) PET CT to Conventional PET CT for Post-Op Staging in Kidney Cancer
NCT06447103
Recruiting
This phase II trial compares the safety and effectiveness of 89Zr-DFO-GmAb positron emission tomography (PET)/computed tomography (CT) compared to contrast-enhanced CT after surgery in detecting clear cell renal cell cancer that has come back (recurrent). For some patients, the risk of recurrence after surgery remains high. Conventional CT methods, such as contrast-enhanced CT, may not detect small volume or micrometastatic disease. PET/CT with radiotracers, such as 89Zr-DFO-GmAb, may improve de... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/09/2025
Locations: UCLA / Jonsson Comprehensive Cancer Center, Los Angeles, California
Conditions: Clear Cell Renal Cell Carcinoma, Sarcomatoid Renal Cell Carcinoma, Stage II Renal Cell Cancer, Stage III Renal Cell Cancer, Stage IV Renal Cell Cancer
Register for Updates
Dichoptic Treatment for Amblyopia in Children 4 to 7 Years of Age
NCT06380517
Recruiting
In children 4 to 7 years of age, to determine if treatment with 1 hour per day 6 days per week of watching dichoptic movies/shows wearing the Luminopia headset is non-inferior to treatment with 2 hours of patching per day 7 days per week with respect to change in amblyopic eye distance VA from randomization to 26 weeks.
Gender:
ALL
Ages:
Between 4 years and 7 years
Trial Updated:
06/09/2025
Locations: Univ. of California- Berkeley, Berkeley, California
Conditions: Amblyopia
Register for Updates
Continuous Glucose Monitoring in Neonatal Hyperinsulinism
NCT06363929
Recruiting
The investigators are studying the accuracy of Dexcom G6 continuous glucose monitors placed on babies with hyperinsulinism in the Miller Children's Hospital Neonatal Intensive Care Unit. The participants will wear the device for 10 days on their lateral thigh. Whenever blood sugars are checked by glucometer, the investigators will also record the continuous glucose monitor sugar. Additionally, if the continuous glucose monitor alarms for a low sugar or an impending low sugar, the investigators w... Read More
Gender:
ALL
Ages:
Between 24 hours and 3 months
Trial Updated:
06/09/2025
Locations: Miller Children's Hospital, Long Beach, California
Conditions: Hyperinsulinism, Hypoglycemia Neonatal
Register for Updates
Manual Lymphatic Drainage Breast Massage in Breast Cancer Patients After Breast Conserving Surgery
NCT06297265
Recruiting
This phase II trial evaluates manual lymphatic drainage breast massage for reducing treatment-related side effects in women undergoing radiation therapy after breast conserving surgery for breast cancer that has not spread to other parts of the body (localized). Breast conserving surgery can be an effective treatment option for early stage breast cancer, but it can also be associated with side effects including fluid collection in tissues/swelling (lymphedema), pain, reduced quality of life, and... Read More
Gender:
FEMALE
Ages:
18 years and above
Trial Updated:
06/09/2025
Locations: USC / Norris Comprehensive Cancer Center, Los Angeles, California
Conditions: Anatomic Stage 0 Breast Cancer AJCC v8, Anatomic Stage IA Breast Cancer AJCC v8, Localized Breast Carcinoma
Register for Updates
Milk-Tot Study: Impact of Whole Versus Low-fat Milk on Child Health
NCT06230510
Recruiting
In the U.S. it is recommended that children consume whole cow's milk (3.5% fat) from ages 1 to 2 years to support rapid early growth and brain development, and then at age 2 years transition to low-fat (1%) or non-fat milk to reduce saturated fat and calorie intake. To date, few studies have examined the optimal milk type for children to prevent obesity. This randomized controlled trial will evaluate the effect of consumption of whole versus 1% milk on child adiposity.
Gender:
ALL
Ages:
Between 23 months and 48 months
Trial Updated:
06/09/2025
Locations: Nutrition Policy Institute, University of California Agriculture and Natural Resources, Oakland, California
Conditions: Obesity
Register for Updates