Clinical Research Directory

Food Genetics Behavior Study

A genetic risk for obesity does not always translate to the development of obesity among children, which points to the presence of risk-modifying factors that likely relate to energy balance behaviors as key behavioral drivers. Using an integrated approach to comprehensively examine the interplay between genotype and phenotype, this study will systematically assess the extent to which energy balance behaviors, alone or in combination, in conjunction with family-level influences can modify behavioral and genetic predispositions to childhood obesity in a high-risk sample of predominantly minority children from low-resource backgrounds. Identifying protective factors that may mitigate the impact of obesity risk on weight and adiposity outcomes is critical for moving the prevention of childhood obesity into a new direction.

Blood Collection Biorepository for Liver Disease Research

The purpose of establishing a biorepository is to provide high quality specimens (serum, plasma, buffy coat and liver tissue) for future researchers who are studying the effects that fatty liver and viral diseases have on the liver.

Food-Body-Mind Intervention (16 Weeks)

This novel, timely, and theory-driven Food-Body-Mind intervention addresses the national emergency of mental health crises in early childhood. By targeting Head Start racially/ethnically diverse preschoolers from low-income backgrounds in both urban and rural areas, this intervention is expected to contribute toward reducing health disparities and promoting health equity, a major priority of the NIH and Healthy People 2030. If effective, it can be scalable to Head Start programs across urban and rural settings nationally with long-term sustainability benefits.

GLP-1 Plus Lifestyle for Overall Wellness: Find Your Way Forward

The rapid emergence of new and highly effective obesity medications has turned the field of pediatric weight management on its head. Adolescents living with obesity, their caregivers, healthcare providers, healthcare systems, policymakers, and payors are now wondering what role health behavior and lifestyle treatment (HBLT) has in terms of body mass index (BMI) reduction, improvements in quality of life and cardiometabolic health, and mitigating nutritional concerns when medications are used. Is intensive HBLT needed or could low intensity HBLT be an equally effective alternative; and if so, for whom? Our proposed project will answer these important questions that arise daily in the clinical setting and will generate critical new insights to guide decision-making for teens with obesity and the stakeholders who care deeply about them.

Stanford Healthy Goals Study

Past modest, transient and highly variable outcomes from many behavioral treatments for pediatric obesity may be, in part, because of the psychological barriers children with obesity face when trying to control their weight. The goal of this randomized controlled trial is to test whether adding two innovative, brief, social psychological activities (termed "wise" interventions) to a high quality, family-based, group behavioral weight control program, will produce better outcomes among participating children with obesity. The primary hypothesis is that children who receive the family-based, group, behavioral weight control program plus the wise social psychological interventions will have significantly less body mass index growth over 12 months than children who receive the family-based, group, behavioral weight control program plus additional educational content. Participants will be asked to do participate in the six month treatment program and complete measurements at the beginning of the study, after 3 months, after 6 months (the end of the behavioral treatment program), and after 12 months (6 months after completing the behavioral treatment program). This study has the potential to substantially improve the outcomes of pediatric weight control treatments and significantly reduce concurrent and future health, psychological and social harms from childhood obesity.

Factors Affecting Newborn Body Composition and Later Health in Helsinki Birth Cohort 2018-2022

In Helsinki Birth Cohort 2018-2022 a large, longitudinal and well-phenotyped birth cohort of infants and their parents will be established. Mothers, fathers/spouses and their children in Helsinki and Uusimaa Hospital District are recruited in the study and newborn composition of the children born in Helsinki Women's Hospital will be measured. Data on maternal and paternal diet quality, physical activity and depression during and after pregnancy will be collected and data from the hospital and national registers will be collected. Health of offspring and parents will be followed during their later life.

The Effect of Healthy Nutrition and Yoga Program on Obese Children

This study was planned to examine the effects of a healthy nutrition and yoga program given to obese children on nutritional behavior, physical activity and anthropometric measurements.

Intervention INC: An Interactive Family-centered mHealth Tool to Reduce Obesity Risk in Urban Minority Preadolescents

Using a two-group randomized study design, this study aims to evaluate the effectiveness of the adapted family-centered mHealth tool on child BMI z-score (primary outcome), child dietary behaviors, and parental feeding practices, from baseline to 12-month follow-up, among 200 child-parent dyads. It is hypothesized that children in the experimental group will demonstrate larger BMI-z score improvements between baseline and 12-month follow-up compared to children in the comparison group.

Mother-Baby Study - Observational

The rate of weight gain in the first year of life is risk factor for future obesity. The study will test (1) a model of l mechanisms underlying the development of emotion, attachment, and nutritive intake; and (2) the association with maternal feeding behavior, child eating behavior, dietary intake, and adiposity.

Evaluation of a Comprehensive School Nutrition Enrichment Intervention (CSNEI) in Rural School Districts

Obesity is a significant cause of cancer and cardiovascular disease incidence and mortality, and diabetes incidence among rural communities. Arkansas has the sixth-highest proportion of rural population (\~41%),and has the third-highest obesity prevalence (37.4%) in the nation. Arkansas has the third-highest prevalence of obesity for high school students (22.1%) and the fifth-highest prevalence for children ages 10-17 (20.2%). In Arkansas, children in rural areas have very high rates of both food insecurity (26%) and free and reduced lunch eligibility (72.9%). In the study's 6 participating school districts, free and reduced lunch eligibility ranges from 51.4% to 79.3%. School meals are an important opportunity to influence students' nutritional intake and long-term food preferences, which can reduce obesity. A multidisciplinary team partnered with 6 rural Arkansas school districts which to evaluate the effects of an evidence-based population-level intervention designed to improve the nutritional quality of food served in schools. The primary research question is: "Compared with similar school districts that did not implement the CSNEI, does the CSNEI intervention yield improved obesity prevention outcomes among rural K-12 students?" The study team will conduct a matched-pairs cluster-randomized trial with pre-test and repeated post-tests in 6 rural Arkansas school districts, 3 implementing CSNEI, and 3 matched comparison school districts following their existing nutritional practices. The evaluation will include \~11,500 students in 6 school districts: \~5,750 from CSNEI school districts and \~5,750 from matched comparison school districts. The study will explore heterogeneity of treatment effects for age and economic standing to understand effects on populations with higher contextual risk for obesity. Baseline data collection will take place prior to implementation (Year 1), and follow-up data will be collected annually thereafter (Years 2-4). The specific aims are: Aim 1.A: Evaluate the effects of a CSNEI on students' relative BMI change over time. Aim 1.B: Evaluate the short-term and long-term effects of a CSNEI on the nutritional quality of food served in school meals. Aim 1.C: Evaluate the short-term and long-term effects of a CSNEI on students' consumption of food served in school meals. Aim 1.D: Evaluate the short-term and long-term effects of a CSNEI on students' skin carotenoid levels, as an indicator of fruit and vegetable intake.

Project REST: Regulation of Eating and Sleep Topography

Overweight/obesity and inadequate sleep are prevalent, and frequently co-occurring, health risks among children, both of which are associated with serious medical and psychosocial health complications including risk for cardiovascular disease. Although the investigator's data suggest that disrupted or shortened sleep may be causally associated with increased energy intake and weight gain in children, and with self-regulation and neural response to food cues in adults, understanding of mechanisms involved in the sleep/eating association is incomplete, thereby impeding development of targeted, optimally timed intervention strategies. The proposed mechanistic clinical trial aims to assess the effects of an experimental sleep manipulation on eating-related self-regulation and its neural substrates, and on real-world eating behavior, among children with overweight/obesity, which will help guide research efforts towards the refinement of prevention and intervention strategies targeting sleep and its eating-related correlates to curb weight gain throughout development.

Resilience to the Effects of Advertising in Children

Strong empirical evidence shows food marketing promotes excess energy intake and obesity. Yet, not all children are susceptible to its effects and this variability is poorly understood. Identifying sources of this variability is a public health priority not only because it may elucidate characteristics of children who are most susceptible, but also because it may highlight novel sources of resiliency to overconsumption. The proposed research will use state-of-the art, data-driven approaches to identify neural, cognitive and behavioral phenotypes associated with resiliency to food-cue (i.e. food advertisement) induced overeating and determine whether these phenotypes protect children from weight gain during the critical pre-adolescent period.

Pharmacokinetics and Pharmacodynamics of Topiramate for Weight Loss in Youth: PHARMATOP

Pediatric severe obesity is the fastest growing obesity category in the United States, and anti-obesity pharmacotherapies are promising adjuncts to lifestyle modification (LSM) for the treatment of this disease. While anti-obesity pharmacotherapies have overall been associated with mean weight loss, there is substantial variability in their individual-level effectiveness. While some patients lose a significant amount of weight with anti-obesity pharmacotherapies, others lose little or even gain weight. Due to this well-recognized variability in individual-level response, the National Institutes of Health (NIH) has recognized the importance of using precision medicine approaches in order to optimize treatments for pediatric severe obesity. Pharmacometrics, which uses mathematical models to study medication dose-exposure (i.e. blood drug concentrations)-response relationships, is an emerging science that can help determine optimal dosing regimens based upon patient-specific characteristics. Pharmacometrics quantitates the interplay between pharmacokinetics (PK; drug dose-exposure associations) and pharmacodynamics (PD; drug exposure-response associations). Population PK (popPK), a type of PK, can be used to quantitate variability in drug exposure among individuals in order to help inform recommendations on therapeutic individualization (e.g. through tailored dosing). In this study, investigators will use popPK/PD modeling to characterize associations between anti-obesity pharmacotherapy dose, exposure, and changes in weight and weight-related outcomes in youth with severe obesity. This study will focus on topiramate because this medication is commonly prescribed for weight loss in youth with severe obesity and has been associated with highly variable individual-level effectiveness.

Physical Activity on Prescription for Children With Obesity

Background: physical inactivity is a main cause of childhood obesity. Physical activity on prescription (PAP) is an evidence-based intervention for adults, but has not been evaluated in children with obesity. Aim: to evaluate the feasibility of a PAP intervention for children with obesity by assessing both clinical patient outcomes and implementation outcomes. Method: a single-arm clinical trial in which children with obesity participate in a 4-month PAP intervention. Measurement points are baseline and 4 months, with long-term follow-ups at 8 and 12 months. Population: children with obesity. Intervention: physical activity on prescription (PAP). Patient outcomes: physical activity level/pattern (including sedentary time), BMI, waist circumference, metabolic risk markers, health-related quality of life, self-efficacy for physical activity, motivation for physical activity. Implementation outcomes: coherence, cognitive participation, collective action, and reflexive monitoring in relation to PAP (the four core constructs of the Normalization Process Theory); appropriateness, acceptability and feasibility of PAP; barriers and facilitators for implementing PAP; recruitment and attrition rates, and intervention fidelity and adherence.

NOURISH-T+: Promoting Healthy Eating and Exercise Behaviors

Pediatric cancer survivors are at an increased risk of excessive weight gain and reduced exercise behaviors with the potential for this risk to worsen over time. With over 80% of pediatric cancer patients living to adulthood, many pediatric cancer survivors experience long-term health consequences such as heart disease - the leading cause of death in this population. The purpose of this clinical research study is to teach parents/caregivers skills that will help prevent and reduce the problems of obesity in childhood cancer survivors. In this study, parents have the opportunity to participate in one of two web-based groups in which parents in either group will learn valuable information to improve the health of their child and of themselves.

Adaptive Implementation to Optimize Delivery of Obesity Prevention Practices in Early Care and Education Settings

"Together, We Inspire Smart Eating" (WISE) is an intervention that improves children's diets in ECE. WISE includes 4 key evidence-based practices (EBPs): (1) hands-on exposures to fruits and vegetables, (2) role modeling by educators, (3) positive feeding practices, and (4) a mascot associated with fruits and vegetables. Standard implementation approaches to WISE result in suboptimal implementation of WISE EBPs. Additional implementation strategies are needed to increase adoption and fidelity to EBPs. To date, most studies have employed an "all-or-nothing" approach, comparing multifaceted strategies to control groups without implementation support. Thus, there is an urgent need for optimized strategies that tailor implementation support intensity to the unique challenges and limited resources of the ECE context. The overall objectives of this application are to determine the effectiveness and cost-effectiveness of an adaptive implementation approach to improve adoption of the EBPs of WISE while also examining implementation mechanisms. The central hypothesis is that the addition of high-intensity strategies at sites that do not respond to low-intensity strategies will improve implementation and health outcomes.

Vyvanse in Children Aged 6 to 12 Years

This study will randomize children who have difficulty maintaining a healthy weight to one of two treatment groups: lifestyle therapy plus lisdexamfetamine or lifestyle therapy plus placebo.

Lifestyle Counseling and Medication for Adolescent Weight Management

The prevalence of adolescent severe obesity is at an all-time high in the United States and the refractory nature of this disease has led to a serious and challenging conundrum in terms of how to provide effective, safe, scalable, and durable treatments without placing undue strain on the healthcare system. Clinical practice guidelines recommend behavioral interventions as the primary strategy for all ages and classes of obesity - moderate to severe. In 2017, the U.S. Preventive Services Task Force (USPSTF) released updated screening recommendations concluding that comprehensive, intensive behavioral interventions with a total of ≥26 contact hours over a period of 2-12 months resulted in weight loss in youth with obesity, with ≥52 contact hours leading to even greater weight loss and improvements in some cardiometabolic risk factors. However, the practicality of delivering these types of intensive behavioral services to the millions of youth with severe obesity in the U.S. is debatable not only because of the treatment-resistant nature of severe obesity, but also due to the time-commitment, acceptability, and sustainability of this approach for adolescent patients and their families along with the extensive resources required to provide these interventions. Indeed, fewer than 50% of pediatric patients referred for weight management services enroll in treatment, and high attrition rates of up to 50% have been reported in behavioral-based clinical trials and in the clinical setting. Moreover, adherence to behavioral counseling significantly diminishes over time, which too often erodes early weight loss success and ultimately derails durability. The reality of what most patients/families are able to do and the unique physiological and psychosocial features of severe obesity in adolescence do not seem to align well with the degree of intensity of behavioral interventions shown to be effective by the USPSTF. Therefore, a critical appraisal of the feasibility, effectiveness, and sustainability of the USPSTF recommendations among adolescents with severe obesity is warranted. While behavior change is an indispensable component of any effective weight loss approach, adjunctive strategies such as pharmacotherapy may enhance outcomes in adolescents with severe obesity. Many maladaptive behaviors attributed to obesity are driven by underlying biological forces, such as increased appetite and food palatability, that are largely beyond the control of the individual. Pharmacotherapy can help facilitate behavior change by disrupting core pathophysiological processes and restoring homeostasis to the energy regulatory system, therein enabling individuals to sustain healthy behavior change. Though under-explored as a treatment for adolescent obesity, pharmacotherapy along with relatively low-intensity behavioral counseling (\<26 contact hours) represents a potentially effective, durable, and safe treatment strategy. This approach may be more practical and feasible to implement on a broad scale, be preferred by patients/families, utilize fewer healthcare resources, and cost less to deliver compared to comprehensive, intensive behavioral interventions.

Family-Based Treatment for Type 1 Diabetes

Type 1 Diabetes carries high burden for affected youth and their families. Advances in insulin therapy and technology have been associated with increased obesity with 1/3 adolescents being overweight/obese. Since obesity runs in families and carries risk for poor outcomes psychologically and medically, the investigators are adapting our successful evidence-based Family Based Treatment for hybrid delivery to improve obesity and metabolic control in the affected youth and improve obesity and related co-morbidities in their parents.

Breastmilk in Response to a Bout of Exercise

The purpose of this study is to unveil the mechanistic benefits of a bout of postpartum maternal exercise on infant health that are provided by breastmilk.

Mobile Apps for Preschool Parents (MAPP) Study

The purpose of Mobile Apps for Preschool Parents (MAPP) Study is to test the effectiveness of two mobile applications for parents of preschool aged children: 1) an app focused on child and family nutrition and wellness, and 2) an app focused on parents reading to their children.

Evaluating a Telemedicine-based Intensive Treatment Program for Children and Adolescents With Obesity

The study objective is to evaluate whether a novel telemedicine-based intensive treatment program for children with obesity is superior to standard on-site care. This will be a randomized, non-blinded (due to the nature of the intervention) study, where 100 children and adolescents aged 10-18 years with obesity will be divided in a 1:1 ratio to either telemedicine or on-site treatments for 6 months. The telemedicine arm will include 30, mostly video, consultations for each participant: 3 physician appointments, 7 exercise consultations by our exercise physiologist, 10 dietary consultations by our pediatric dietitian, and 10 psychologist consultations to assist with goal setting and overall well-being. Three visits will be conducted in-office, for physician assessment, smartphone technical assistance and physical measurements (baseline, at 3 months and at the end of the 6-month period). Participants randomized to the telemedicine arm will have a step-counting rewarding app installed on their smartphone by our staff. The in-office arm will have 6 monthly visits during the study period, with two consultations performed in each visit - one by the physician or exercise physiologist, and one by our pediatric dietitian. The main outcome of the study is BMI standard deviation (z-score) changes, which will be evaluated after 3 and 6 months of treatment during physical office visits in both study arms. Secondary outcomes will be: * Body-fat percent changes, assessed by bioimpedance analysis in physical clinic visits. * Daily step counts, measured by smartphone data/ wearable activity tracker, if available. * Weight-related quality of life * Retention and visit cancellation rates. * Satisfaction of both parent and child from their allocated treatment.

DAta-driven personaLIzation of a digitAl Health Solution to Support Family Caregivers of Children With Chronic Conditions

The goal of this feasibility study is to explore the needs of families with children with obesity and evaluate the impact of a combined intervention (children with obesity receiving pharmacological therapy in combination with the Adhera Caring Digital Program®) on treatment satisfaction, adherence, and mood. The main objectives are: * To evaluate the impact of the treatment combination (ACDP® and pharmacological treatment) in terms of satisfaction, engagement, adherence and mood, in families with children with obesity. * To better understand the educational and support needs of the families of children with obesity while under treatment and lifestyle changes. Participants will: * Use the Adhera Caring Digital Program® (ACDP®) for obesity, which includes digital therapeutic software, personalized messages, and educational materials. * Take pharmacological treatment as prescribed for one year. * Wear activity wristbands/watches to collect biometric data. * Attend monthly clinic visits for assessments and monitoring. * Complete psychometric questionnaires to measure satisfaction, adherence, and emotional outcomes. * Engage in chat-based communication and video conferencing with health coaches for support and monitoring.

Beta-Cell - Liver Interactions in Situations of Modified Beta-Cell Function

The investigators will measure blood levels of 1,5-anhydroglucitol in obese children with or without type 2 diabetes and correlate them with parameters related to functional beta-cell mass and glucose metabolism. The values will be compared to those obtained in healthy volunteers. The aim of the study is to test the validity of 1,5-anhydroglucitol as a novel biomarker of beta-cell mass and function in children with obesity with or without type 2 diabetes.