Obesity Clinical Trials

This study will compare the blood levels of cagrilintide and semaglutide when the same dose is given in two different versions of CagriSema. CagriSema is a medicine that combines two medicines called cagrilintide and semaglutide. It is still being tested in studies and is not yet available for doctors to prescribe. Participants will get an injection with each of the two versions of CagriSema at two different times at the clinic. Like all medicines, the study medicine may have side effects. The study will last for about 18 weeks. Read Less

Obesity disproportionately impacts sexual minority women. Behavioral weight loss programs are the gold standard treatment for mild to moderate obesity. The investigators have developed an online behavioral weight loss program that is effective, low-cost, and highly scalable. However, existing research suggests that tailoring treatment to address 3 well-established weight loss barriers in sexual minority women will be critical for maximizing the relevance and efficacy of behavioral weight loss for this group. In the Preparation Phase of this K23, the investigators developed 3 novel treatment components targeting sexual minority women's weight loss barriers (i.e., minority stress, low social support, and negative body image), the investigators piloted the program among sexual minority women of higher weight, and the investigators conducted individual qualitative interviews to elicit feedback on the intervention's acceptability, cultural relevance, usability, and feasibility, and this feedback was used to refine the program. In the Optimization Phase of this K23 (the current phase), 88 women will receive 12 weeks of Rx Weight Loss and will be randomized to receive 0-3 tailored components in a full factorial design with 23 (8) distinct combinations of components. Novel components that increase mean weight loss (by ≥2%) or the proportion of women achieving clinically meaningful weight loss (by ≥10%) at 6 months will be retained in a finalized obesity treatment package that the investigators will evaluate in a future randomized controlled trial (RCT) (Evaluation Phase). The aims of this study are to: Aim 2A (Optimization): Use a factorial experiment to determine how 3 novel components impact mean weight loss and the proportion of women achieving a 5+% weight loss at 6 months. Aim 2B (Mediation): Clarify how tailored components impact weight loss by testing hypothesized mechanisms of action (i.e., coping with stress, perceived social support, weight and shape concerns). This project will tailor and optimize an evidence-based online behavioral obesity treatment to enhance weight loss outcomes in sexual minority women. Read Less

The purpose of this clinical trial is to learn about the safety and effects of the study medicine (called PF-07976016) for the potential treatment of obesity. The study will compare the experiences of participants taking the study medicine (PF-07976016) to those of participants who take placebo (a lookalike substance that contains no active study medicine). The aim is to measure the body's response to the study medicine, including any changes in participants' body weight and how well they tolerate the study medicine. Read Less

This study is testing a new study medicine to treat people living with overweight or obesity. The aim of this study is to see if the medicine is safe, how it works in human body, and what human body does to the study medicine. Participants will either get the new study medicine NNC0174-1213, a study medicine called "cagrilintide" or a placebo (a "dummy medicine" similar to the new study medicine and study medicine but without active ingredients). Which treatment participants will get is decided by chance. The new study medicine and the study medicine are potential new medicines which cannot be prescribed by doctors. This study will last for about a year in total. Read Less

The goal of this clinical trial is to learn if a psychological intervention can increase regular physical activity to help prevent weight regain after metabolic bariatric surgery in adults. The main questions it aims to answer are: 1. Does the psychological intervention increase physical activity? 2. Does the psychological intervention prevent weight regain? 3. Does the psychological intervention increase internal motivation for physical activity and acceptance of the discomfort that can come with physical activity? Researchers will compare the psychological intervention to an educational intervention to see if the psychological intervention works to increase physical activity and prevent weight regain after metabolic bariatric surgery. Participants will: * Complete 12 months of either the psychological or educational intervention. This includes attending online workshops with a small group of participants, completing brief homework assignments, and having individual telephone calls with a counselor. * Wear a device to measure physical activity, use an electronic scale to measure body weight, and complete questionnaires at home on five separate occasions over an 18-month period Read Less

The proposed randomized controlled trial tests two self-regulatory approaches to improve intentional weight loss and diet quality in individuals with overweight or obesity: (1) an environmental control strategy (AVOID) and (2) an impulse control training strategy (RESIST). Read Less

The proposed research aims to reduce obesity-related health disparities by promoting healthy lifestyle behaviors among African Americans (AAs), given the high disease burdens associated with low physical activity, insufficient sleep, and obesity. There will be two phases to the proposed research. Phase 1 (Aim 1) will encompass formative research and community engagement activities, and Phase 2 (Aim 2a and 2b) will be a randomized clinical trial. The primary goal of Aim 1 is to conduct in-depth qualitative interviews in order to: (1) better understand sleep-related social contextual factors, knowledge, behaviors, and beliefs, and (2) discuss and receive feedback on an existing sleep intervention design and materials. The primary goal of Aim 2 is to explore the feasibility, satisfaction, and preliminary efficacy of a sleep intervention to increase sleep and physical activity (PA) among sedentary and short sleeping (≤6 hrs/night) African American adults with overweight/obesity, compared to a contact control group. (Aim 2a) An additional exploratory (Aim 2b) examines changes in cancer-relevant biomarkers between those who received the intervention vs the control condition (n = 20). Data will be collected from a sample of 20 participants (10 per condition) who volunteer to have their blood drawn pre- and post-intervention. There are two phases of the study, and information gained during Phase 1 (Aim 1) will be used to inform Phase 2 (Aim 2). Thus, additional modifications to the protocol will be submitted prior to engagement in Phase 2. Read Less

The purpose of this study is to compare two methods for managing obesity in rural primary care patients. The first method includes quarterly 1:1 meetings with the participant and their primary care provider and the second includes a group lifestyle intervention over Zoom paired with quarterly team meetings with the participant, their primary care provider and their lifestyle coach, the coach joining via Zoom. Investigators will evaluate which method is best at helping participants lose weight over 18 months. Read Less

Evaluation of biomarkers for risk of developing breast cancer in women with obesity who are using tirzepatide to achieve weight loss. Read Less

The study compares the effectiveness of treatment options for weight management after discontinuing semaglutide and tirzepatide. The primary outcome is absolute and percentage weight change at 12-weeks. Read Less

Extracellular vesicles (EVs) play a role in obesity-induced insulin resistance and likely impact the development of cardiovascular disease. However, little is known on how EVs affect vascular insulin action in people. The purpose of this study is to understand how EVs play a role in type 2 diabetes related cardiovascular disease. This research will also study if exercise can change how EVs impact blood flow and metabolic health. This study will contribute to designing precision medicine to treat/prevent cardiovascular disease in type 2 diabetes. Read Less

This study seeks to answer the fundamental questions of which initial, first-line weight loss intervention should be offered to older adults with obesity and multiple chronic conditions and how to address the high non-response rates observed with most conventional strategies. A sequential, multiple assignment, randomized trial (SMART) design will permit the evaluation of treatment combinations that maximize weight loss and will provide data on constructing a future tailored, adaptive intervention. If successful, these findings will identify interventions that could markedly improve health and quality of life of these older adults, reduce long-term disability, and lower healthcare costs Read Less