Healthy Paid Clinical Trials in California

This study aims to evaluate the antioxidant and anti-inflammatory effects of acute and chronic consumption of two sweet orange (Citrus sinensis) varieties-'Rosy Red Valencia', which is rich in carotenoids such as lycopene, phytoene, and phytofluene, and 'Olinda Valencia', which lacks these carotenoids-in healthy adults. In this 4-week, randomized, parallel-arm clinical trial, participants will consume either 'Rosy Red Valencia' or 'Olinda Valencia' oranges daily. The study will assess the effects of sweet orange intake on markers of oxidative stress and inflammation, plasma carotenoid concentrations, gene expression in peripheral blood mononuclear cells, and gut health. Findings from this study may help identify potential health benefits associated with specific carotenoid profiles in sweet oranges and provide insights into their role in modulating inflammation and oxidative stress. Read Less

YUQ-A1007 is a novel gut-enriched AhR agonist. The nonclinical pharmacology study indicated that YUQ-A1007 has the potential to treat IBD. YUQ-A1007 has not been evaluated in human clinical studies. This study is first-in-human (FIH) study of YUQ-A1007. The goal of this trial is to evaluate the safety, tolerability, and pharmacokinetics of oral YUQ-A1007. Read Less

To support optimal behavior in daily life, goals and responses following emotional events should ideally incorporate not only the valence and intensity of prior emotional episodes but also their temporal features, such as the relative duration of positive vs. negative attributes. However, how specific brain regions contribute to the integration of temporal and emotional information and promote goal-directed response remains unknown. The goal of this study is to examine how specific brain regions track both emotional and temporal information of dynamic emotional events to inform other related brain regions to guide goal-oriented and context-appropriate actions. The investigators will scan healthy human participants using functional MRI (fMRI) while they view emotional image sequences and track the associated emotional and temporal (duration) information, and act accordingly. The investigators will employ multivariate patterns analysis and pattern similarity analysis to identify brain regions that represent (can decode) emotion, time, and their combined signals, as well as brain regions that represent the associated action goal. In addition, to infer the causal contributions of these brain regions in forming task-relevant representations (emotion, time, and action goal), the same participants will be recruited to receive transcranial magnetic stimulation (TMS) in these regions. Read Less

Randomized controlled trial of a curriculum intervention teaching patients to eat a whole-food plant-based dietary pattern versus standard of care in kidney transplant recipients within the first few months of transplant Read Less

The small intestine and feces of subjects undergoing endurance exercise will be sampled to examine their microbiome composition Read Less

One hundred twenty healthy participants, ages 21 to 70, who experience moderate-to-lower-than-average mental well-being will be evenly randomized into four different study arms, using a 2x2 factorial design. Depending on the study arm, participants will either receive an inactive placebo or up to 25mg psilocybin (oral dose), in one of two set and setting conditions; drug administration contexts that are predicted to modulate drug effects. The purpose of this study is to evaluate any interaction effects between an oral dose of psilocybin and the surrounding context (set and setting). Read Less

All participants will undergo baseline biopsies of subcutaneous abdominal adipose tissue for cellular/molecular profiling via snRNA-seq and metabolic/physiological assessments (insulin sensitivity, glucose tolerance, and β-cell function). Older obese participants will be randomized into three arms: lifestyle intervention (n=24), senolytics (n=24), or placebo (n=24). Read Less

The goal of this clinical trial is to determine the safety, tolerability and effects of Nezavist in healthy adults. The main questions it aims to answer are: * What is the safety and maximum tolerated dose (MTD) of orally administered Nezavist formulated as a spray dried dispersion (SDD) in healthy volunteers? * What are the pharmacokinetics (PK) of orally administered Nezavist SDD and its major metabolite (DCUKA) across a range of doses in healthy volunteers? Researchers will compare the active drug (Nezavist) and a placebo (an inactive substance that looks like the drug) to see if there is any differences between the two groups to make sure Nezavist is safe to use in future studies for reducing alcohol consumption by individuals that have alcohol use disorder (AUD). Read Less

This is a single-blind, sham-controlled, clinical trial that aims to evaluate the safety, tolerability, and feasibility of delivering audiovisual stimulation via a Virtual Reality (VR) headset to people cognitively impaired due to Alzheimer's and cognitively unimpaired people. Read Less

Omega-3 index is used as a proxy for an adequate intake of fish unsaturated fats in the diet. However, omega-3 supplements have not consistently shown the health benefits of eating fresh fish. This study will assess the change in omega-3 index and impact on markers of cardiometabolic health with two different supplements: a whole, unprocessed salmon oil and a standard, processed, concentrated oemga-3 oil. The markers to be studies included impact on inflammation and oxidative stress, cholesterol and markers of risk of diabetes. Change in sleep metrics will also be assessed. Read Less

This study is a biomarker study designed to characterize how human neural circuits and behaviors are modified during altered states induced by MDMA. Read Less

The purpose of this research is to collect medical imaging data to allow for the comparison of bone mineral density measurements from two different types of low-dose x-ray exams, EOSedge and conventional DXA. The main question it aims to answer is: Is there agreement between the calculated T-scores between the 2 different types of x-ray exams? Read Less