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.
A Study of 2 Doses of Ritlecitinib in People 12 Years of Age and Older With Alopecia Areata
Recruiting
The purpose of the study is to learn about the safety and effects of the study medicine (called ritlecitinib) for the treatment of alopecia areata. Alopecia areata is a disease that causes hair loss on the scalp, face, and areas of the body. Ritlecitinib is approved in many countries at a dose of 50 mg (milligram) taken by mouth once a day for the treatment of patients 12 years and older with severe alopecia areata. This study will look at both the 50 mg dose and a 100 mg dose. This study is s... Read More
Gender:
ALL
Ages:
12 years and above
Trial Updated:
08/11/2025
Locations: Doc1 Healthcare Systems, Brea, California
Conditions: Alopecia Areata
Study of Targeted Therapies for the Treatment of Adult Participants With Active Psoriatic Arthritis
Recruiting
Psoriatic arthritis (PsA) is a type of arthritis that happens when the body's immune system attacks healthy cells and tissues causing joint pain, stiffness, and swelling. Symptoms can get worse and go away for periods of time. This study will evaluate the efficacy and safety of targeted therapies through a series of substudies, for the treatment of active psoriatic arthritis and to assess the changes in disease symptoms. The therapies being assessed in this sub-study are risankizumab and lutiki... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/11/2025
Locations: Newport Huntington Medical Group /ID# 272764, Huntington Beach, California
Conditions: Psoriatic Arthritis
A Study to Assess the Efficacy and Safety of Afimkibart (RO7790121) in Participants With Moderate to Severe Atopic Dermatitis
Recruiting
The purpose of this study is to assess the efficacy and safety of Afimkibart (also known as RO7790121) in participants with moderate to severe atopic dermatitis (AD).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/11/2025
Locations: Dermatology Research Associate, Los Angeles, California
Conditions: Atopic Dermatitis
A Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Efficacy of RO7446603 Administered Alone or in Combination With Aflibercept or Faricimab in Participants With Diabetic Macular Edema
Recruiting
This study aims to evaluate the ocular and systemic safety, tolerability and efficacy of RO7446603 in participants with diabetic macular edema (DME). The study consists of 2 segments: Phase I (Parts 1-4) and Phase II (Part 5). Phase I investigated the safety of RO7446603 following a single and multiple intravitreal (IVT) doses as monotherapy or co-administered with IVT aflibercept or IVT faricimab (in separate injections). Phase II will investigate the safety, tolerability, pharmacokinetics (PK)... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/11/2025
Locations: Retinal Diagnostic Center, Campbell, California
Conditions: Diabetic Macular Edema
Intracept Minimally-invasive PROcedure for VErtebrogenic Back Pain
Recruiting
Compile real-world outcomes of commercially approved Intracept™ Intraosseous Nerve Ablation Systems in the treatment of patients diagnosed with vertebrogenic pain.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/11/2025
Locations: MarinHealth Spine Institute, Larkspur, California
Conditions: Chronic Low-back Pain, Vertebrogenic Pain Syndrome
A Study to Evaluate the Adverse Events, and Efficacy of Intravenous (IV) of Telisotuzumab Adizutecan in Combination With IV Oxaliplatin, Fluorouracil, Folinic Acid/Leucovorin, Bevacizumab, Panitumumab in Adult Participants With Metastatic Colorectal Cancer
Recruiting
CRC is the third most common type of cancer diagnosed worldwide with developed countries at highest risk. The purpose of this study is to assess adverse events and change in disease activity when telisotuzumab adizutecan is given in combination with oxaliplatin, fluorouracil (5FU), leucovorin (LV) (FOLFOX), and bevacizumab or panitumumab. Telisotuzumab adizutecan is an investigational drug being developed for the treatment of mCRC. Fluorouracil and leucovorin are drugs approved for the treatmen... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/11/2025
Locations: City of Hope National Medical Center /ID# 270255, Duarte, California
Conditions: Metastatic Colorectal Cancer
Pneumatic Compression vs Blood Flow Restriction for Muscle Recovery
Recruiting
Both BFR and intermittent pneumatic compression are purported to decrease symptoms associated with exercise induced muscle damage (EIMD) that cause delayed onset muscle soreness (DOMS). Blood flow restriction relies on applying pressurized cuffs to the most proximal portion of the limb. Another form of recovery often relied upon is pneumatic compression. The mechanism by which pneumatic compression works is similar to that of a massage, whereby the device progressively increases the pressure on... Read More
Gender:
ALL
Ages:
Between 18 years and 30 years
Trial Updated:
08/11/2025
Locations: University of Southern California, Los Angeles, California
Conditions: Delayed Onset Muscle Soreness
Study to Evaluate the Efficacy, Safety, and Tolerability of BMS-986368, for the Treatment of Agitation in Participants With Alzheimer's Disease
Recruiting
This is a study to evaluate the efficacy, safety, and tolerability of BMS-986368, a FAAH/MAGL inhibitor, for the treatment of agitation in participants with Alzheimer's Disease.
Gender:
ALL
Ages:
Between 55 years and 90 years
Trial Updated:
08/11/2025
Locations: Local Institution - 0017, Anaheim, California
Conditions: Agitation, Alzheimer Disease
A Randomized Study of Azetukalner Versus Placebo in Major Depressive Disorder
Recruiting
X-NOVA2 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:
08/11/2025
Locations: Behavioral Research Specialists, Llc, Glendale, California
Conditions: Major Depressive Disorder
A Study to Evaluate the Adverse Events, Efficacy, and Optimal Dose of Intravenous (IV) Telisotuzumab Adizutecan in Combination With IV Budigalimab in Adult Participants With Advanced or Metastatic Non-Squamous NSCLC With No Prior Treatment for Advanced Disease, and No Actionable Genomic Alterations
Recruiting
Non small cell lung carcinoma (NSCLC) is the most frequently occurring histologic subtype of lung cancer and is the leading cause of cancer-related deaths worldwide. The purpose of this study is to assess adverse events and change in disease activity when Telisotuzumab Adizutecan (ABBV-400) is given in combination with a programmed cell death receptor 1 (PD1) inhibitor (budigalimab) to adult participants to treat NSCLC. ABBV-400 and budigalimab are investigational drugs being developed for the... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/11/2025
Locations: Providence - St. Jude Medical Center /ID# 271414, Fullerton, California
Conditions: Non Small Cell Lung Carcinoma
A Study of Mezagitamab in Adults With Chronic Primary Immune Thrombocytopenia
Recruiting
Primary immune thrombocytopenia (ITP) is a condition where the immune system mistakenly destroys platelets, which are cells that help stop bleeding. This leads to a low number of platelets, making it easier to bruise or bleed. The main aim of this study is to learn whether mezagitamab, when given just under the skin (subcutaneously \[SC\]), is effective in keeping the platelet count of adults with ITP stable when compared to a placebo. A placebo looks like medicine but doesn't have any active in... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/11/2025
Locations: USC Norris Comprehensive Cancer Center - Keck Medicine of USC, Los Angeles, California
Conditions: Immune Thrombocytopenic Purpura (ITP)
A Double-blind Dual Study Assessing Safety and Efficacy of Buntanetap in Participants With Early AD
Recruiting
The goal of this clinical trial is to learn if buntanetap/Posiphen works to treat early Alzheimer's disease in adults aged 55-85. It will also learn about the safety of buntanetap/Posiphen. The main questions it aims to answer are: * Does buntanetap/Posiphen improve cognition as measured by ADAS-Cog13? * Does buntanetap/Posiphen improve function as measured by ADCS-iADL? * What medical issues do participants have, if any, when taking buntanetap/Posiphen? Researchers will compare buntanetap/Pos... Read More
Gender:
ALL
Ages:
Between 55 years and 85 years
Trial Updated:
08/11/2025
Locations: Advanced Research Center, Anaheim, California
Conditions: Early Alzheimers Disease