UC Davis Health Clinical Studies

A Study of an After-School Program to Teach Food Literacy in Food, Agriculture, Natural resources, and Human (FANH) sciences.

Volunteer for research at UC Davis and contribute to discoveries that may improve health care for you, your family, and your community!

UC Davis is doing a research study. We are asking you to allow your child to be a part of this research study because they are in the age group we would like to help and are a student at a local school. We would like to learn more about whether a new program helps children learn about nutrition, gardening, and being active. This project will focus on low-income communities. It will expand on existing after-school programs. Adolescents from these communities have higher high school dropout rates. Extracurricular activities, including after-school programs may help. They can improve graduation rates and increase college enrollment. This project plans to educate high school kids in food, agriculture, natural resources, and human (FANH) sciences. We will also motivate them to graduate high school, attend college, and major in FANH sciences. The project will empower adolescents to learn more and be excited about FANH sciences.

Behavioral study
Any, age 9 to 18 years old

Online Developmental Screening Study

Have you had a new baby? Learn about your baby's development!

Researchers at the UC Davis MIND Institute on the UC Davis Medical Center campus in Sacramento are conducting an online study tracking the development of infants from 6 to 36 months of age. The goal of the study is to help parents understand their child’s development and gain access to resources when needed. This study tests new online methods of tracking developmental milestones in babies. The UC Davis MIND Institute is a collaborative international research center, committed to the awareness, understanding, prevention and care of neurodevelopmental disorders.

Longitudinal screening study
Any, age 6 months

Fiber Study

The purpose of this study is to determine if dietary fiber increases overall gut health

The purpose of this study is to investigate whether consuming a packet of fiber powder per day changes the composition and/or function of the gut microbiota and high density lipoproteins (HDL) or good cholesterol. If you take part in this research, you will be responsible to keep your normal diet with low fiber content, defined as less than approximately 15g/day, or equivalent to approximately 4 servings of fruit, vegetable, legume, or whole grain combined per day. You also need to attend all the visits until the endpoint of the study and provide all the questionnaires and biological samples as instructed under your consent.

Dietary Intervention Clinical Trial
Any, age 18-45

Koa Family: California's Obesity Prevention Project

This study hopes to learn if a new whole health program improves the health of low-income mothers.

The purpose of this study is to learn if a new whole health program improves the health of low-income mothers. To be eligible for this study, you must be a woman between the ages of 18 and 47. You must be comfortable speaking and reading English and be a mother (or caregiver) whose youngest child is between the ages of 3 and 17. You also must live in a low-income household (at or below 185% of the Federal Poverty Level), live in the Mack Road neighborhood of Sacramento or the City of Woodland, and have a cell phone that can receive text messages.

Behavioral study
Female, age 18 to 47 years old

A Study of the Effects of Intermittent Fasting on Energy, Hormones, Body Composition, and Performance in Male Runners

The study team hopes to learn more about how time restricted eating affects performance and health in male runners.

This study is designed to test the effects of four weeks of time restricted feeding (16 hours fasting and 8 hours feeding). These effects will be compared to four weeks of a more traditional eating pattern (12 hours fasting and 12 hours feeding). The study team will look at the following in male competitive runners: • Resting energy expenditure • Blood markers of metabolism and hunger • Body composition • Cardiovascular health • Substrate utilization (carbohydrate and fat burning) • Fitness

Behavioral study
Male, age 20 to 40 years old

The Effects of Sucrose-sweetened Beverage in African-American and Caucasian Women (SAAC) Study

In this study, we hope to learn about the metabolism of koolaid beverages that contain added sucrose (table sugar).

The main goal of this research study is to learn about the metabolism of koolaid beverages that contain added sucrose (table sugar). We hope that what we learn will help patients in the future. As with all research studies, no one can guarantee that participating in a research study will help you. We invite you to take part in a research study if you: - identify as either an African-American or non-hispanic White woman. - are a woman between the ages of 18-45 years. - are a nonsmoker who does not have diabetes mellitus or liver, kidney or thyroid disorders. - do not take hypolipidemic, anti-diabetic, anti-hypertensive or anti-depression medication. - have a stable body weight during the prior 6 months

Biological Study
Female, age 18-45

Join a research study of a potential new form of birth control

Help us understand if an investigational vaginal ring is safe and effective in preventing pregnancy

This clinical trial will study the efficacy, cycle control, and safety of an investigational contraceptive vaginal ring over 12 months. The vaginal ring that will be used in this study is experimental and being developed as a possible new method of birth control. The ring in this study is used for three months before it is changed. The ring is made of silicone rubber and contains two hormones. One of the hormones is a progestin called Nestorone. The other hormone is an estrogen called estradiol. This estrogen is the same estrogen made in a woman's body. The vaginal ring releases these hormones into your body. The hormones are intended to keep women from releasing an egg so they do not get pregnant. Birth control pills work the same way. To take part in this study, you must be willing to engage in at least one act of heterosexual intercourse per month. You also must not be using another method of birth control to prevent pregnancy while you are enrolled onto this study.

Drug study, Phase 2
Female, age 18 to 35 years old