NCT06901245 · Grace Kim
Tirzepatide in PWS, HO and GNSO
What this study is about
This research study is comparing the effectiveness of a weight loss medication called Tirzepatide in young adults with Prader-Willi Syndrome and/or hypothalamic obesity, as compared to young adults with obesity that is unrelated to a genetic syndrome or underlying medical cause.
View original scientific description
This research study is comparing the effectiveness of a weight loss medication called Tirzepatide in young adults with Prader-Willi Syndrome and/or hypothalamic obesity, as compared to young adults with obesity that is unrelated to a genetic syndrome or underlying medical cause. These groups will be given medication for 1 year to see how weight and other health factors are effected by the medication.
Interventions
DRUG
Tirzepatide
Subjects will take Tirzepatide for 48 weeks
Primary outcome measures
Change in weight
Time frame: 48 weeks
Weight will be measured in kilograms through anthropometric measurements. Change in percent weight from baseline to week 48 of treatment with tirzepatide in young adults with PWS, HO, GNSO and obesity will then be assessed.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Individuals 18-26 years with a BMI in the obesity range (BMI ≥95th percentile for age and sex or ≥30 kg/m2) with either 1) genetically confirmed diagnosis of PWS, 2) hypothalamic obesity as defined by damage to the medial hypothalamic region resulting in dysregulation of satiety and energy balance as diagnosed by a physician, 3) general obesity unrelated to a genetic syndrome or underlying medical condition
- In a stable care setting at least 6 months prior to enrollment
- Able and willing to participate in study visits including tolerating blood draws, urine samples and tolerate DXA scan.
- Ability to take weekly subcutaneous tirzepatide
- Consistent caregiver if they are not independent
- Stable diet and exercise regimen for at least 6 months prior to enrollment
- Able to use contraceptive methods if able to conceive offspring in order to prevent unintentional pregnancy during the study
Exclusion criteria
- Current or recent (within 3 months of start of study drug initiation) use of weight loss medications
- Current use of insulin or sulfonylurea or other medication affecting insulin secretion or GLP1 clearance
- Current or prior use of any GLP1A or DPP4 inhibitor during the 6 months before screening
- Any medications that may affect the study endpoints
- Significant weight change (\>3% weight gain or loss) in the last 2 months prior to enrollment
- Change in dose of chronic endocrine medications (testosterone, estrogen, levothyroxine, or growth hormone medications) \>10%/kg/day for at least 3 months prior to study
- Current pregnancy or desire to become pregnant within study period, current lactation
- History of recurrent pancreatitis, CKD, gastroparesis
- Chronic/acute heart, kidney, or liver disease
- Personal or family history of medullary thyroid carcinoma or MEN syndrome type 2
- Uncontrolled diabetes (A1C \>8.5%)
- Cancer within the previous 5 years
- Current participation in an interventional clinical study
- Previous or planned surgical treatment for obesity
- Individuals with current substance abuse equivalnt to moderate or severe based on DSM 5 criteria (Hasin DS, 2013)
- Any suicidal ideation in the past year
- Unable to perform any of the procedures for the study
- Have a body weight, height, and/or width that that prohibits the ability to obtain accurate measurements according to the DXA manufacturer's specification
- Any condition that would prevent successful participation in the study.
Where
- Saint Paul, Minnesota
- Nashville, Tennessee
- Seattle, Washington
Collaborators
Vanderbilt University Medical Center, Children's Hospitals and Clinics of Minnesota, Seattle Children's Hospital
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Sep 16, 2025 · Source of record for eligibility and locations