This study it to test an investigational vaccine called mRNA-1647 that is being developed for preventing cytomegalovirus (CMV) infection in people. CMV is a common virus that can spread easily through an infected person’s saliva or other body fluids such as blood, urine, and breast milk. We want see if the trial vaccine can prevent CMV infection in participants who have not been previously infected, to understand the safety (how many side effects you may have) of the trial vaccine, and to see if the trial vaccine results in participants making antibodies to CMV.

The study drug FP-001 (Leuprolide mesylate) is being developed for children that are suffering from central (gonadotropin-dependent) precocious puberty (CPP). Leuprolide has been approved in the United States (US) and the European Union (EU) as treatment for prostate cancer already, and other forms of Leuprolide from other companies have been approved for the treatment of CPP. In this clinical study, Leuprolide will be used in the form of a 6-month depot injection.

The proposed study is an individual three-arm randomized controlled tiled aimed at utilizing state-of-the-art intervention methods to examine whether increasing the quality and the quantity of family meals reduces childhood obesity.

This is a study to evaluate the safety and efficacy of ALXN1850 in pediatric participants with hypophosphatasia who have been treated with asfotase alfa for at least 6 months.

Amblyopia (sometimes called 'lazy eye') is reduced vision in one eye caused by abnormal visual development early in life. The weaker (or 'lazy') eye often wanders inward and outward. Amblyopia is the leading cause of reduced vision in children and can lead to blindness if not treated. Treatments for amblyopia are glasses, and if needed, further treatment with part-time patching or penalization with atropine eye drops. Patching or atropine are administered to the stronger eye to force the child to use the weaker (amblyopic) eye. In recent years, an alternative type of therapy has emerged. It is called dichoptic treatment and involves stimulating both eyes simultaneously but with different stimuli. When it was first introduced, it was done in an office-based setting. Home-based technologies utilizing games and movies have been developed and studied to a limited extent in younger children with amblyopia. In this study, we will use a system called Luminopia. It uses a virtual reality headset to view web-based videos in which the contrast of the image seen by the stronger eye is reduced by 15% from that of the weaker eye. Luminopia has been available for use in the U.S. since 2022 and has been approved by the FDA for the treatment of amblyopia in this age group. In a previous large randomized trial, home-based dichoptic movies were shown to be superior to glasses alone but treatment effectiveness compared to patching (the gold standard for treating amblyopia) has not yet been established. If dichoptic therapy using the Luminopia system is confirmed to be at least as effective as patching, it would be an appealing alternative for treating amblyopia in young children, as it shows promise of better adherence and an easier treatment experience for the parent and the child. Children in this study would be randomized 1:1 to either the Patching Group or the Luminopia Group and followed for at least 6 months. Children in the Patching Group will have the option to do the Luminopia treatment after 6 months of patching. They will be followed for an additional 6 months. Thus, their participation will last for a total of 1 year.

Rhabdomyosarcoma is a type of cancer that occurs in the soft tissues in the body. This phase III trial aims to maintain excellent outcomes in patients with very low risk rhabdomyosarcoma (VLR-RMS) while decreasing the burden of therapy using treatment with 24 weeks of vincristine and dactinomycin (VA) and examines the use of centralized molecular risk stratification in the treatment of rhabdomyosarcoma. Another aim of the study it to find out how well patients with low risk rhabdomyosarcoma (LR-RMS) respond to standard chemotherapy when patients with VLR-RMS and patients who have rhabdomyosarcoma with DNA mutations get separate treatment. Finally, this study examines the effect of therapy intensification in patients who have RMS cancer with DNA mutations to see if their outcomes can be improved.

This project is a data and specimen repository for developmental disorders. Participants provide biological samples and permission to store their health-related data. The purpose is collect and manage these materials for use in biomedical research related to developmental disorders.

This research study is for creating a registry of all ages with conditions in endocrine and both health. Registries are used very often these days by doctors and scientists to collect information and use to perform research into rare conditions. This registry will be part of a global registry, called "GloBE-Reg" with the University of Glasgow (Scotland) and with the University of MInnesota.

We are doing this study to check how well semaglutide can help adolescents with excess body weight to lose weight and to maintain weight loss. This study will mainly look at long-term maintenance of weight loss and the long-term safety of semaglutide in children with excess body weight.

Currently, there are no approved treatment options for pediatric subjects with proteinuric kidney conditions. The study will look at the safety, efficacy, and pharmacokinetic (PK) trial in children ≥1 to <18 years treated for up to 108 weeks with the drug sparsentan.

This research is being done to learn more about how children with idiopathic short stature grow. About 600 children with idiopathic short stature will be in this study across the world. The study will last a minimum of 6 months (i.e., three study visits). After a child has been in this study for at least 6 months, participants may be offered the option to exit this study and enroll in a different study with growth promoting agents.

This study is enrolling participants who have been diagnosed with juvenile spondyloarthritis, are taking a tumor necrosis factor inhibitor (TNFi) and have reached a clinically inactive disease state for a minimum of six months. Researchers want to know if children who have maintained inactive disease for at least 6 months can maintain quiet disease without taking their medication as frequently or stop the TNFi therapy. Quiet disease means that disease related symptoms are not active or being experienced in the patient. Researchers also want to know the safest method to bring patients off medication. If a flare does occur during therapy reduction, researchers want to find out whether they can predict when a flare is most likely to happen, and how quickly an inactive disease state can be recaptured.

We are doing this study to see if we can improve the standard treatment for OCD, Exposure with Response Prevention, by pairing it with Transcranial Magnetic Stimulation to the parts of the brain that cause OCD symptoms.

This study explores the associations between maternal stress, breastmilk composition, and feeding and neurodevelopment for preterm infants in the NICU and at 4 months corrected age.

The way our bodies react to stress when we’re very young can affect our health for the rest of our lives – and this can vary from person to person. The goal of this research project is to learn more about how different children respond to stress and how to best measure stress in children. We are collecting a measure of attention skills and small samples of hair, cheek swabs, and saliva from children in all kinds of communities across the country. Scientists will look at these samples to learn more about how children respond to stress. This study session will last approximately 25-30 minutes.

The goal of this study is to test the safety and effectiveness of tildacerfont in children with congenital adrenal hyperplasia (CAH). When a child is enrolled in the study, in addition to taking the study drug (tildacerfont), he or she will continue to take his or her standard glucocorticoid doses. A part of the study will be to test different doses of the study drug and to measure adrenal hormones at each visit. Children will be in the study for 18 weeks and will have to visit the study clinic 5 times.

This study will test whether adding in daily weighing (5-7 days per week) is helpful in weight loss. In adults, it has been found to be helpful to have individuals who are obese to be more successful with their weight loss efforts if they weigh themselves at home every day. We want to see if this could be helpful in children as well. This research will last for about 12 weeks (3 months).

This study will enroll children aged 6 to 12 years who have difficulty in maintaining a healthy weight and see if the medication Vyvanse may help them to reduce their weight.

This study will compare the effectiveness and durability of intensive behavioral counseling vs. medical management plus low-intensity behavioral counseling on BMI, body fat, cardiometabolic risk factors, and quality of life in adolescents with severe obesity. We hypothesize that Wegovy (semaglutide) plus low-intensity behavioral counseling will elicit superior reductions in BMI and body fat and greater improvement in cardiometabolic factors and quality of life compared to intensive behavioral counseling at 56 weeks.

In this study we want to find out more about weight loss and how diet and medications can affect weight loss. This study will last for up to 58 weeks. There are two phases to the study: - A weight loss phase with prescribed meals that lasts 6 weeks. - A study medication/placebo phase that lasts up 52 weeks. You will not know if you are receiving the medication or the placebo.

The goal of this study is to learn more about how children (ages 5-8 years) describe their gender identities. We are also interested in learning more about the ways children think and develop. We will be giving children several tasks designed as games to assess flexibility in thinking, creativity, and the ability to take another person’s perspective.

This study will seek to learn about barriers to management of Type 2 diabetes for children ages 10-17. This study is recruiting children, and their parent/guardian, who are managing with oral medication or insulin.

This is a new type 1 diabetes onset study for ages 12-35 years old. We are looking at JAK inhibitor drugs to see if they can preserve beta cell function.

The purpose of this research study is to collect timely and relevant data that will support the evolving research needs of the Inherited Retinal Disease community (IRD), in order to provide insights that can be used to improve patient management, and to inform development of future treatments. No visits, assessments, or procedures are mandated, and follow-up will be captured as part of your standard of care. The planned length of registry is of 8 years with a potential to extend the duration as needs evolve.

The purpose of this study is to determine the dose of medication (Valacyclovir) needed to prevent an infant from developing herpes simplex virus (HSV) if the infant was potentially exposed to HSV at the time of delivery as they passed through the birth canal.

Researchers want to find out more about how physical, cognitive, and emotional factors affect eating.

We are hoping to understand more about how being in the ICU impacts children who use breathing support at home and their families. As part of this research study, families will be asked to complete the following during the four study periods: - Complete questionnaires - Airway oscillometry will be used to test your child’s breathing - Complete short daily surveys

This study will be measuring brain activity using EEG and assessing motor skills and speech in children following cancerous brain tumor resection. No direct cancer treatments or objectives are being targeted.

This study is being done to see how safe an investigational drug is and how well it will work to help people with obesity, or overweight with weight-related conditions like hypertension, dyslipidemia, obstructive sleep apnea, non-alcoholic fatty liver disease, or diabetes. If you qualify to be in the study, you will be given frequent lifestyle and behavioral counseling for the first 12 weeks of the study. The counseling will consist of advice on physical activities and dietary advice on healthy eating. During the treatment period, you will receive either tirzepatide or placebo. Placebo is a solution that looks like the study drug but has no medicine. The chance that you will get the study drug is 2 in 3. This phase will last about 72 weeks.

This study identifies the bio-behavioral predictors and correlation of responses to Comprehensive Behavioral Intervention to Tics (CBIT) in young people with tic disorder.