California is currently home to 5602 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.
VK2735 for Weight Management Phase 3
NCT07104500
Recruiting
This is a phase 3, multicenter, 78-week randomized, double-blind, placebo-controlled, parallel arm study that will evaluate the weight loss efficacy as well as safety, tolerability, pharmacodynamic effects, and pharmacokinetics of VK2735 in adults who are obese (BMI ≥30 kg/m2) or overweight (BMI ≥27 kg/m2) with one or more weight related comorbid condition without Type 2 Diabetes.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/12/2025
Locations: Viking Clinical Site #1071, Chula Vista, California
Conditions: Weight Loss
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VK2735 for Weight Management Type 2 Diabetes Phase 3 (VANQUISH 2)
NCT07104383
Recruiting
This is a phase 3, multicenter, 78-week randomized, double-blind, placebo-controlled, parallel arm study that will evaluate the weight loss efficacy as well as safety, tolerability, pharmacodynamic effects, and pharmacokinetics of VK2735 in adults with Type 2 Diabetes who are obese or overweight
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/12/2025
Locations: Viking Clinical Site #2071, Chula Vista, California
Conditions: Weight Loss
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A Randomized Study of Azetukalner Versus Placebo in Major Depressive Disorder (X-NOVA3)
NCT07076407
Recruiting
X-NOVA3 is a Phase 3, multicenter, randomized, double-blind, placebo-controlled study to evaluate the clinical efficacy, safety, and tolerability of azetukalner as a monotherapy in adult participants diagnosed with Major Depressive Disorder (MDD)
Gender:
ALL
Ages:
Between 18 years and 74 years
Trial Updated:
08/12/2025
Locations: California Neuroscience Research, Sherman Oaks, California
Conditions: Major Depressive Disorder
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A Study to Evaluate Concomitant Perfluorohexyloctane Use With Contact Lens Wear
NCT07054606
Recruiting
Assess the impact of concomitant Miebo use while wearing contact lenses
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/12/2025
Locations: Site 101, San Diego, California
Conditions: Dry Eye
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A Long-term Safety and Efficacy Study Evaluating APG777 in Atopic Dermatitis
NCT07003425
Recruiting
This is a multicenter, double-blind, Long-Term Extension (LTE) study to evaluate the long-term safety and efficacy of APG777 in patients with moderate-to-severe AD who have completed treatment in an APG777 Parent Study (NCT06395948). The LTE study will consist of 3 periods: 1) Screening Visit will coincide with the last visit of the Maintenance Period in the Parent Study 2) Extended Treatment Period 3) Post-treatment Follow-up Period. This study will be conducted in participants with atopic de... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/12/2025
Locations: Investigational Site, Fountain Valley, California
Conditions: Atopic Dermatitis
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A Study to Learn About the Study Medicine Called PF-07328948 in Adults With Heart Failure (BRANCH-HF)
NCT06991257
Recruiting
The purpose of this study is to learn about the safety and effects of the study medicine (PF-07328948) for the possible treatment of heart failure (HF).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/12/2025
Locations: National Heart Institute, Beverly Hills, California
Conditions: Heart Failure
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Aspirin Dose Escalation for the Prevention of Recurrent Preterm Delivery Trial
NCT06980025
Recruiting
This is a phase-III multi-center double-blind randomized clinical trial of 1,800 individuals with a history of prior preterm birth at less than 35 weeks gestation who are randomized to either 162 mg aspirin or 81 mg aspirin daily. The study drug will be initiated between 10 and 15 weeks gestation and continued through 36 weeks, 6 days gestation. The primary endpoint is recurrent preterm delivery or fetal death prior to 35 weeks, 0 days gestation.
Gender:
FEMALE
Ages:
14 years and above
Trial Updated:
08/12/2025
Locations: Regents of the University of California San Francisco, San Francisco, California
Conditions: Preterm Delivery, Obstetrical Complications
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GV101 in Healthy Obese Participants
NCT06979505
Recruiting
The purpose of this trial is to evaluate the efficacy and safety of GV101 for weight loss over a range of doses in participants with obesity. The primary efficacy endpoint is the mean percent change in body weight from baseline at Week 16 in each treated group as compared with placebo.
Gender:
ALL
Ages:
Between 18 years and 70 years
Trial Updated:
08/12/2025
Locations: Catalina Research Institute, LLC, Montclair, California
Conditions: Weight Management
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A Study to Evaluate the Safety, Tolerability, Pharmacokinetics (PK), and Immunogenicity of APG777 in Adults With Asthma
NCT06920901
Recruiting
This is a multicenter, randomized, double-blind, placebo-controlled study to evaluate the safety, tolerability, PK, and immunogenicity of APG777 in adult participants with mild-to-moderate asthma. The duration of the study will be approximately 52 weeks (364 days) for each participant and will consist of a Screening Period, Treatment Period, and Follow-up Period.
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
08/12/2025
Locations: Investigational Site, La Jolla, California
Conditions: Asthma
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DFT383 in Pediatric Participants With Nephropathic Cystinosis
NCT06910813
Recruiting
An open-label, multi-center, phase I/II study to assess the safety, tolerability and efficacy of DFT383 in pediatric participants with nephropathic cystinosis. The purpose of this clinical study is to assess safety, tolerability, and efficacy of DFT383 in participants aged 2 to ≤ 5 years with nephropathic cystinosis. DFT383 is a cellular gene therapy. This study includes an active arm (Cohort 1) of participants treated with study treatment DFT383 and a concurrent reference arm (Cohort 0) treat... Read More
Gender:
ALL
Ages:
Between 2 years and 5 years
Trial Updated:
08/12/2025
Locations: Stanford University / Stanford Children's Health, Stanford, California
Conditions: Nephropathic Cystinosis
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Study of the Safety and Immunogenicity of Catch-up Vaccination With a 21-valent Pneumococcal Conjugate Vaccine (PCV21) in Healthy Infants, Toddlers, Children, and Adolescents
NCT06838000
Recruiting
The purpose of this study is to evaluate the safety and immunogenicity of PCV21 versus 20vPCV ( 20-valent pneumococcal conjugate vaccine, Prevnar 20) for catch-up vaccination in infants (7 to 11 MoA-Months of age), toddlers (12 to 23 MoA), and children/adolescents (2 to 5 YoA and 6 to 17 YoA-years of age).
Gender:
ALL
Ages:
Between 7 months and 17 years
Trial Updated:
08/12/2025
Locations: Site # 8400008, Paramount, California
Conditions: Pneumococcal Infections
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Study of the Oral Treatment MTR-601 in Cervical Dystonia
NCT06830642
Recruiting
Study MTR-601-201 is an 8-week, randomized, placebo-controlled study to examine the safety, tolerability, and efficacy of MTR-601 in participants with cervical dystonia.
Gender:
ALL
Ages:
Between 18 years and 80 years
Trial Updated:
08/12/2025
Locations: The Parkinson's and Movement Disorder Institute, Fountain Valley, California
Conditions: Cervical Dystonia
Register for Updates