Clinical Research Directory

A 2-part, Phase 1b Clinical Study Designed to Evaluate the Safety, PK, and Efficacy of CRB-913 in Participants With Obesity

This study will assess the safety of the investigational drug CRB-913 and how it is processed in the body. The study has two parts: Part 1 will measure drug levels in healthy adults after taking CRB-913 tablets, and Part 2 will compare three doses of CRB-913 with placebo to evaluate safety, effects on body weight, and drug levels in the blood. Part 2 is blinded, meaning participants, study doctors, and the sponsor will not know which treatment is given. Participants in Part 2 will take study treatment for 12 weeks and will be followed for 28 days after treatment ends.

Fructose Intestinal Gluconeogenesis

This study will test the hypothesis that within a defined range of fructose intake, the ability to convert fructose to glucose (via gluconeogenesis) in the small intestine plays a protective role for the liver, shielding it from the deleterious effects of fructose. We will investigate whether this protective effect of the intestine is impaired in individuals with obesity.

Physical Acvitiy in Pregnancy

The goal of this observational study is to learn how a physically active lifestyle during pregnancy affects placental development and function. The main question it aims to answer is: Does regular physical activity during pregnancy improve placental function and support healthy fetal growth? Pregnant participants will provide biological samples and health information during pregnancy and at delivery. The study will use these samples to examine how activity levels relate to placental energy production and overall health.

Pistachio Snacking and Metabolic Flexibility

The purpose of this study is to evaluate the effects of pistachio snacking on metabolic flexibility (at rest, during exercise, and in post-exercise recovery) in healthy overweight and obese adults. Secondary goals include evaluating effects on changes in diet quality, sleep characteristics, physical activity, and hormonal health in women. In randomized order, participants will complete four days of pistachio snacking and four days of normal dietary habits (control). For both conditions, primary outcomes of resting substrate metabolism, metabolic flexibility during exercise, and post-exercise substrate metabolism will be measured pre-post intervention via indirect calorimetry. Secondary outcome of diet quality (kcal, carb, fat, protein) will be measured pre-post intervention via diet log. Exploratory outcomes of daily physical activity (steps, intensity), nightly sleep characteristics (quantity, quality, latency, efficiency), and daytime sleepiness and hunger.