ObesityPhase 3STEP YoungNCT05726227
A Research Study on How Well Semaglutide Helps Children and Teenagers With Excess Body Weight Lose Weight
A Phase 3 study testing Semaglutide in people with Obesity, run by Novo Nordisk A/S at 56 sites in 10 countries.
Trial summary
This study will look at how well semaglutide helps children and teenagers losing weight. This will be tested by comparing the effect on body weight in children and teenagers taking semaglutide in comparison to placebo, a "dummy" medicine. Read more about this study
- Who is it for?
- Ages 6 to 18 years
- Conditions the study is for
- Obesity
- What is being tested?
- Semaglutide
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 212 participants
- Where
- 56 sitesin 10 countries
- Study dates
- 7 Jul 2023to 7 Dec 2026
- Phase
- Phase 3
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 6 to 18 years
- All sexes
- No healthy volunteers
- Child, Adult
Who may be able to join
- Informed consent of parent(s) or legally acceptable representative (LAR) of participant and child assent, as age-appropriate, obtained before any study-related activities. Study-related activities are any procedures that are carried out as part of the study, including activities to determine suitability for the study. a) The parents or LAR of the child must sign and date the Informed Consent Form (according to local requirements) b) The child must sign and date the Child Assent Form or provide oral assent (according to local requirements)
- Age at the time of signing informed consent. a)Group Kids: 6 to less than 12 years. b) Group Teens: 12 to less than 18 years and Tanner stage greater than 1
- Body mass index (BMI), at screening and randomisation, corresponding to a) Group Kids: greater than or equal to 95th percentile. b) Group Teens: greater than or equal to 95th percentile or greater than or equal to 85th percentile with the presence of at least 1 weight-related comorbidity (treated or untreated): hypertension, dyslipidaemia, obstructive sleep apnoea or type 2 diabetes mellitus (T2D)
- History of at least one unsuccessful effort to lose sufficient body weight after participation in a structured lifestyle modification programme (diet and exercise counselling) for at least 3 months
- Body weight of greater than 45 kilogram (kg) at screening and randomisation
- For participants with T2D at screening, the following additional criterion applies: glycated haemoglobin (HbA1c) less than or equal to 10.0 percent (86 millimoles per mole [mmol/mol]) as measured by central laboratory at screening
Who cannot join
- Treatment with any medication prescribed for the indication of obesity or weight management within 90 days before screening
- Previous or planned (during the study period) obesity treatment with surgery or a weight loss device. However, the following are allowed: a) liposuction and/or abdominoplasty, if performed greater than 1 year prior to screening. b) adjustable gastric banding, if the band has been removed greater than 1 year prior to screening. c) intragastric balloon, if the balloon has been removed greater than 1 year prior to screening. d)duodenal-jejunal bypass liner (e.g., nonbarrier), if the sleeve has been removed greater than 1 year prior to screening
- Type 1 diabetes mellitus or monogenic diabetes
- Participants with endocrine, hypothalamic, or syndromic obesity
- For participants with T2D at screening, the following additional key criterion applies: Uncontrolled and potentially unstable diabetic retinopathy or maculopathy. Verified by a fundus examination performed within the past 90 days before screening or in the period between screening and randomisation. Pharmacological pupil-dilation is a requirement unless using a digital fundus photography camera specified for non-dilated examination
Trial locations and contacts
56 sites in 10 countries.
56 sites in 10 countries
United States24 sites
Texas Diabetes & Endocrinology
Austin, Texas, 78731
Barry J. Reiner, MD LLC
Baltimore, Maryland, 21229
Pennington Biom Res Ctr
Baton Rouge, Louisiana, 70808
Massachusetts General Hospital_Cary
Boston, Massachusetts, 02114
UBMD Peds-Div of Endo/Diabetes
Buffalo, New York, 14203
Columbus Research Foundation
Columbus, Georgia, 31904
Centricity Research - Ohio
Columbus, Ohio, 43213
Neighborhood Healthcare
Escondido, California, 92025
Valley Weight Loss Clinic
Fargo, North Dakota, 58104
Mississippi Center for Advanced Medicine
Madison, Mississippi, 39110
Mississippi CTR for ADV MED
Madison, Mississippi, 39110
Marshfield Clinic
Marshfield, Wisconsin, 54449
Solaris Clinical Research
Meridian, Idaho, 83646
University of Minnesota
Minneapolis, Minnesota, 55414
Clinical Trials of America LLC
Monroe, Louisiana, 71201
IMA Clinical Research
Monroe, Louisiana, 71201
Vanderbilt University Medical Center
Nashville, Tennessee, 37212
Yale School of Medicine
New Haven, Connecticut, 06519
Health Res of Hampton Roads
Newport News, Virginia, 23606
UPMC Child Hosp-Pittsburgh
Pittsburgh, Pennsylvania, 15224
WakeMed Childn Endo-Dbt_Raleig
Raleigh, North Carolina, 27610
Univ Of Texas Hlth Science Cntr
San Antonio, Texas, 78207
Eastside Bariatric and Gen Surg
Snellville, Georgia, 30078
Pediatric Clinical Trials, LLC
Tullahoma, Tennessee, 37388
Germany7 sites
Universitätsklinikum Halle - Innere Medizin II
Halle, 06120
Hannoversche Kinderheilanstalt "Auf der Bult" - Diabeto-, Endokrino-, Gastroenterologie und Klinische Forschung
Hanover, 30173
Kinder- und Jugendkrankenhaus
Hanover, 30173
Uniklinik Leipzig - Klinik und Poliklinik für Kinder- und Jugendmedizin
Leipzig, 04103
Universitätsklinikum Leipzig, Klinik und Poliklinik für Kinder- und Jugendmedizin
Leipzig, 04103
Uniklinik Ulm - Dt. Zentrum für Kinder- und Jugendgesundheit (DZKJ)
Ulm, 89075
Universitätsklinikum Ulm für Kinder- und Jugendmedizin
Ulm, 89075
United Kingdom5 sites
Birmingham Children's Hospital
Birmingham, B4 6NH
University Hospitals Bristol & Weston NHS Foundation Trust
Bristol, BS2 8BJ
Leeds Children's Hospital
Leeds, LS1 3EX
Alder Hey Children's Hospital
Liverpool, L12 2AP
Southampton General Hospital
Southampton, SO16 6YD
Belgium4 sites
UZ Brussel
Brussels, 1090
UZ Antwerpen - UZA - Kinderziekenhuis
Edegem, 2650
UZA - UZ Antwerpen - Kinderziekenhuis
Edegem, 2650
UZ Leuven - Kindergeneeskunde
Leuven, 3000
Sweden4 sites
Drottning Silvias barnsjukhus
Gothenburg, 41650
Hallands sjukhus Halmstad
Halmstad, 30233
Akademiska sjukhuset Uppsala
Uppsala, 75185
Uppsala universitetssjukhus
Uppsala, 75185
Denmark3 sites
Aarhus Universitetshospital, Steno Diabetes Center Aarhus
Aarhus, 8200
Aalborg Universitetshospital - Børne og Ungeafdelingen
Gistrup, 9260
Holbæk Sygehus - Børne- og Ungeafdelingen
Holbæk, 4300
Israel3 sites
Rambam MC - Department of Pediatrics A
Haifa, 31096
Schneider MC - Endrocrinology and Diabetes
Petah Tikva, 49202
Shamir MC - Pediatric and Adolescents Endocrinology unit
Tsrifin, 7033001
Portugal3 sites
Hospital da Luz Lisboa, S.A.
Lisbon, 1500-650
ULS De Santo António, E.P.E. - Hospital de Santo António
Porto, 4050-342
Hospital CUF Porto S.A.
Porto, 4100-180
Austria2 sites
Universitätsklinik Kinder-Jugendheilkunde Innsbruck
Innsbruck, 6020
Universitätsklinik für Kinder und Jugendheilkunde Haus E
Salzburg, 5020
About this study
Official title: Long-term Safety and Efficacy of Semaglutide s.c. Once-weekly on Weight Management in Children and Adolescents (Aged 6 to <18 Years) With Obesity or Overweight
This study will look at how well semaglutide helps children and teenagers losing weight. This will be tested by comparing the effect on body weight in children and teenagers taking semaglutide in comparison to placebo, a "dummy" medicine. In addition to taking the medicine, the child's parent and the child will have talks with study staff about healthy food choices, how to be more physically active and what your child can do to try to lose weight. The child will either get semaglutide or a "dummy" medicine. Which treatment the child will get is decided by chance. Semaglutide is an approved medicine for type 2 diabetes and weight management in adults.
The child will get one injection once a week. The study medicine is injected with a thin needle in the stomach, thighs or upper arms. The study will last for about 2 ½ years (132 weeks).
- Conditions
- Obesity
- Being tested
- Semaglutide, Placebo
- Medical subject headings
- Obesity
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
SemaglutideDrug
Semaglutide will be administered subcutaneously once weekly.
PlaceboDrug
Placebo will be administered subcutaneously once-weekly.
| Study group | Role | What they receive |
|---|---|---|
| Group Kids | Experimental | Participants in the age group 6 to less than (<) 12 years will receive once weekly subcutaneous (s.c.) injection of either semaglutide or placebo matched to semaglutide in dose escalation fashion for 16 weeks (0.25 mg from weeks 0-4, 0.5 mg from weeks 5-8, 1.0 mg from weeks 9-12 and 1.7 mg from weeks 13-16) followed by 2.4 mg as maintenance dose for 88 weeks as an adjunct to a reduced-calorie diet and increased physical activity. Receives: Drug: Semaglutide; Drug: Placebo |
| Group Teens | Experimental | Participants in the age group 12 to < 18 years will receive once weekly s.c. injection of either semaglutide or placebo matched to semaglutide in dose escalation fashion for 16 weeks (0.25 mg from weeks 0-4, 0.5 mg from weeks 5-8, 1.0 mg from weeks 9-12 and 1.7 mg from weeks 13-16) followed by 2.4 mg as maintenance dose for 88 weeks as an adjunct to a reduced-calorie diet and increased physical activity. Receives: Drug: Semaglutide; Drug: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Group Kids: Change in body mass index (BMI)
Measured in percentage (%)
Measured: From baseline (week 0) to week 68
Secondary outcomes (69)
Group Kids: Improvement in weight category
Measured as count of participants. Weight categories based on growth charts from Center for Disease Control (CDC).gov: Normal weight= BMI less than (<) 85th percentile, Overweight= BMI greater than or equal to (>=) 85th - <95th percentile, Obesity class I= BMI >=95th - <120% of the 95th percentile, Obesity class II= BMI >=120% - <140% of the 95th percentile, Obesity class III= BMI >=140% of the 95th percentile.
Measured: From baseline (week 0) to week 68
Group Teens: Change in BMI
Measured in %
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in BMI
Measured in %
Measured: From week 0 to week 104
Group Teens: Improvement in weight category
Measured as count of participants. Weight categories based on growth charts from CDC.gov: Normal weight= BMI less than (<) 85th percentile, Overweight= BMI greater than or equal to (>=) 85th - <95th percentile, Obesity class I= BMI >=95th - <120% of the 95th percentile, Obesity class II= BMI >=120% - <140% of the 95th percentile, Obesity class III= BMI >=140% of the 95th percentile.
Measured: From week 0 to week 68
Group Kids and Group Teens: Improvement in weight category
Measured as count of participants. Weight categories based on growth charts from CDC.gov: Normal weight= BMI less than (<) 85th percentile, Overweight= BMI greater than or equal to (>=) 85th - <95th percentile, Obesity class I= BMI >=95th - <120% of the 95th percentile, Obesity class II= BMI >=120% - <140% of the 95th percentile, Obesity class III= BMI >=140% of the 95th percentile.
Measured: From week 0 to week 104
Group Kids and Group Teens: Change in body weight
Measured in percentage
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in body weight
Measured in percentage
Measured: From week 0 to week 104
Group Kids and Group Teens: Change in body weight
Measured in kilograms (kg)
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in body weight
Measured in kilograms (kg)
Measured: From week 0 to week 104
Group Kids and Group Teens: Change in BMI percentage of the 95th percentile
Measured in percentage points
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in BMI percentage of the 95th percentile
Measured in percentage points
Measured: From week 0 to week 104
Group Kids and Group Teens: Change in BMI Standard deviation score (SDS)
Measured as score on a scale. BMI SDS was calculated using the following formula: Z=[(value /M)^L - 1] / S*L; where L, M and S are median (M), skewness (L) and variation coefficient (S) of children/adolescents' BMI provided for each sex and age. For each subject, a Z (SDS) score was calculated based on age and sex referring to the values L, M and S. The method is described in the WHO Multicentre Growth Reference, which also contains the values for L, M and S by age and sex. For Z (SDS) scores below -3 and above 3, the score was adjusted as described in the WHO instruction.
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in BMI SDS
Measured as score in a scale. BMI SDS was calculated using the following formula: Z=[(value /M)^L - 1] / S*L; where L, M and S are median (M), skewness (L) and variation coefficient (S) of children/adolescents' BMI provided for each sex and age. For each subject, a Z (SDS) score was calculated based on age and sex referring to the values L, M and S. The method is described in the WHO Multicentre Growth Reference, which also contains the values for L, M and S by age and sex. For Z (SDS) scores below -3 and above 3, the score was adjusted as described in the WHO instruction.
Measured: From week 0 to week 104
Group Kids and Group Teens: Change in waist circumference
Measured in centimeters (cm)
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in waist circumference
Measured in centimeters (cm)
Measured: From week 0 to week 104
Group Kids and Group Teens: Change in systolic blood pressure
Measured in millimeters of mercury (mmHg)
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in systolic blood pressure
Measured in millimeters of mercury (mmHg)
Measured: From week 0 to week 104
Group Kids and Group Teens: Change in diastolic blood pressure
Measured in mmHg
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in diastolic blood pressure
Measured in mmHg
Measured: From week 0 to week 104
Group Kids and Group Teens: Change in total cholesterol
Measured in %
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in total cholesterol
Measured in %
Measured: From week 0 to week 104
Group Kids and Group Teens: Change in high density lipoprotein (HDL)
Measured in %
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in high density lipoprotein (HDL)
Measured in %
Measured: From week 0 to week 104
Group Kids and Group Teens: Change in low density lipoprotein (LDL)
Measured in %
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in low density lipoprotein (LDL)
Measured in %
Measured: From week 0 to week 104
Group Kids and Group Teens: Change in very low density lipoprotein (VLDL)
Measured in %
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in very low density lipoprotein (VLDL)
Measured in %
Measured: From week 0 to week 104
Group Kids and Group Teens: Change in triglycerides
Measured in %
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in triglycerides
Measured in %
Measured: From week 0 to week 104
Group Kids and Group Teens: Change in high sensitivity C-reactive protein (hs-CRP)
Measured in %
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in high sensitivity C-reactive protein (hs-CRP)
Measured in %
Measured: From week 0 to week 104
Group Kids and Group Teens: Change in glycated haemoglobin (HbA1c)
Measured in % point
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in glycated haemoglobin (HbA1c)
Measured in % point
Measured: From week 0 to week 104
Group Kids and Group Teens: Change in fasting plasma glucose
Measured in millimoles per liter (mmol/L)
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in fasting plasma glucose
Measured in millimoles per liter (mmol/L)
Measured: From week 0 to week 104
Group Kids and Group Teens: Change in fasting plasma glucose
Measured in milligrams per deciliter (mg/dL)
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in fasting plasma glucose
Measured in milligrams per deciliter (mg/dL)
Measured: From week 0 to week 104
Group Kids and Group Teens: Change in fasting insulin
Measured in %
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in fasting insulin
Measured in %
Measured: From week 0 to week 104
Group Kids and Group Teens: Change in alanine transaminase (ALT)
Measured in milliunits per liter (mU/L)
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in alanine transaminase (ALT)
Measured in milliunits per liter (mU/L)
Measured: From week 0 to week 104
Group Kids and Group Teens: Change in total fat mass, by Dual energy X-ray absorptiometry (DXA) relative to total body mass
Measured in % points
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in total fat mass, by Dual energy X-ray absorptiometry (DXA) relative to total body mass
Measured in % points
Measured: From week 0 to week 104
Group Kids and Group Teens: Change in lean body mass, by DXA relative to total body mass
Measured in % points
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in lean body mass, by DXA relative to total body mass
Measured in % points
Measured: From week 0 to week 104
Group Kids and Group Teens: Relative change in visceral fat mass by DXA
Measured in %
Measured: From week 0 to week 68
Group Kids and Group Teens: Relative change in visceral fat mass by DXA
Measured in %
Measured: From week 0 to week 104
Group Kids and Group Teens: Number of participants achieving greater than or equal to (>=) 5% reduction of BMI (yes/no)
Measured in count of participants
Measured: From week 0 to week 68
Group Kids and Group Teens: Number of participants achieving greater than or equal to (>=) 5% reduction of BMI (yes/no)
Measured in count of participants
Measured: From week 0 to week 104
Group Kids and Group Teens: Number of participants achieving greater than or equal to (>=) 10% reduction of BMI (yes/no)
Measured in count of participants
Measured: From week 0 to week 68
Group Kids and Group Teens: Number of participants achieving greater than or equal to (>=) 10% reduction of BMI (yes/no)
Measured in count of participants
Measured: From week 0 to week 104
Group Kids and Group Teens: Number of participants achieving greater than or equal to (>=) 15% reduction of BMI (yes/no)
Measured in count of participants
Measured: From week 0 to week 68
Group Kids and Group Teens: Number of participants achieving greater than or equal to (>=) 15% reduction of BMI (yes/no)
Measured in count of participants
Measured: From week 0 to week 104
Group Kids and Group Teens: Number of treatment emergent adverse events (AEs)
Measured as count of events
Measured: From week 0 to week 68
Group Kids and Group Teens: Number of treatment emergent adverse events (AEs)
Measured as count of events
Measured: From week 0 to week 111
Group Kids and Group Teens: Number of treatment emergent serious adverse events (SAEs)
Measured as count of events
Measured: From week 0 to week 68
Group Kids and Group Teens: Number of treatment emergent serious adverse events (SAEs)
Measured as count of events
Measured: From week 0 to week 111
Group Kids and Group Teens: Change in pulse
Measured as beats per minute
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in pulse
Measured as beats per minute
Measured: From week 0 to week 104
Group Kids and Group Teens: Change in amylase
Measured as units per liter (U/L)
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in amylase
Measured as units per liter (U/L)
Measured: From week 0 to week 104
Group Kids and Group Teens: Change in lipase
Measured as U/L
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in lipase
Measured as U/L
Measured: From week 0 to week 104
Group Kids and Group Teens: Change in calcitonin
Measured as nanograms per liter (ng/L)
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in calcitonin
Measured as nanograms per liter (ng/L)
Measured: From week 0 to week 104
Group Kids and Group Teens: Change in bone mineral density, by DXA
Measured as grams per square centimeter (g/cm^2)
Measured: From week 0 to week 68
Group Kids and Group Teens: Change in bone mineral density, by DXA
Measured as grams per square centimeter (g/cm^2)
Measured: From week 0 to week 104
Group Kids and Group Teens: Number of treatment emergent hypoglycaemic episodes (for T2D only)
Measured as count of episodes
Measured: From week 0 to week 68
Group Kids and Group Teens: Number of treatment emergent hypoglycaemic episodes (for T2D only)
Measured as count of episodes
Measured: From week 0 to week 111
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Feb 2023
- Study start7 Jul 2023
- Primary completion15 Oct 2025
- Study completion7 Dec 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for ObesityStudies of the same condition, open and under way.
- More trials run by Novo Nordisk A/SThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 212 participants (actual)
Sponsor and investigators
- Lead sponsor
- Novo Nordisk A/S
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Clinical Transparency dept. 2834, Study director, Novo Nordisk A/S
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05726227
- Sponsor's protocol ID
- NN9536-4512
- Other IDs
- U1111-1266-3808, 2022-502922-41
- Acronym
- STEP Young
- Status last verified
- Oct 2026
- First submitted
- 3 Feb 2023
- Last updated
- 7 Oct 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: According to the Novo Nordisk disclosure commitment on novonordisk-trials.com.
Study at a glance
From the registry record, last updated by the sponsor on 7 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Long-term Safety and Efficacy of Semaglutide s.c. Once-weekly on Weight Management in Children and Adolescents (Aged 6 to <18 Years) With Obesity or Overweight
- ClinicalTrials.gov ID
- NCT05726227
- Acronym / sponsor ID
- STEP Young / NN9536-4512
- Conditions
- Obesity
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 212 participants (actual)
- Lead sponsor
- Novo Nordisk A/SIndustry (pharma, biotech, devices)
- Study start
- 7 Jul 2023 (actual)
- Primary completion
- 15 Oct 2025 (actual)
- Study completion
- 7 Dec 2026 (estimated)
- First posted
- 13 Feb 2023 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study will look at how well semaglutide helps children and teenagers losing weight. This will be tested by comparing the effect on body weight in children and teenagers taking semaglutide in comparison to placebo, a "dummy" medicine. In addition to taking the medicine, the child's parent and the child will have talks with study staff about healthy food choices, how to be more physically active and what your child can do to try to lose weight. The child will either get semaglutide or a "dummy" medicine. Which treatment the child will get is decided by chance. Semaglutide is an approved medicine for type 2 diabetes and weight management in adults.
The child will get one injection once a week. The study medicine is injected with a thin needle in the stomach, thighs or upper arms. The study will last for about 2 ½ years (132 weeks).
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Group Kids | Experimental | Drug: Semaglutide, Drug: PlaceboParticipants in the age group 6 to less than (<) 12 years will receive once weekly subcutaneous (s.c.) injection of either semaglutide or placebo matched to semaglutide in dose escalation fashion for 16 weeks (0.25 mg from weeks 0-4, 0.5 mg from weeks 5-8, 1.0 mg from weeks 9-12 and 1.7 mg from weeks 13-16) followed by 2.4 mg as maintenance dose for 88 weeks as an adjunct to a reduced-calorie diet and increased physical activity. |
| Group Teens | Experimental | Drug: Semaglutide, Drug: PlaceboParticipants in the age group 12 to < 18 years will receive once weekly s.c. injection of either semaglutide or placebo matched to semaglutide in dose escalation fashion for 16 weeks (0.25 mg from weeks 0-4, 0.5 mg from weeks 5-8, 1.0 mg from weeks 9-12 and 1.7 mg from weeks 13-16) followed by 2.4 mg as maintenance dose for 88 weeks as an adjunct to a reduced-calorie diet and increased physical activity. |
Who may qualify
- Ages
- 6 to 18 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult
Key inclusion criteria (6 listed)
- Informed consent of parent(s) or legally acceptable representative (LAR) of participant and child assent, as age-appropriate, obtained before any study-related activities. Study-related activities are any procedures that are carried out as part of the study, including activities to determine suitability for the study. a) The parents or LAR of the child must sign and date the Informed Consent Form (according to local requirements) b) The child must sign and date the Child Assent Form or provide oral assent (according to local requirements)
- Age at the time of signing informed consent. a)Group Kids: 6 to less than 12 years. b) Group Teens: 12 to less than 18 years and Tanner stage greater than 1
- Body mass index (BMI), at screening and randomisation, corresponding to a) Group Kids: greater than or equal to 95th percentile. b) Group Teens: greater than or equal to 95th percentile or greater than or equal to 85th percentile with the presence of at least 1 weight-related comorbidity (treated or untreated): hypertension, dyslipidaemia, obstructive sleep apnoea or type 2 diabetes mellitus (T2D)
- History of at least one unsuccessful effort to lose sufficient body weight after participation in a structured lifestyle modification programme (diet and exercise counselling) for at least 3 months
- Body weight of greater than 45 kilogram (kg) at screening and randomisation
Key exclusion criteria (5 listed)
- Treatment with any medication prescribed for the indication of obesity or weight management within 90 days before screening
- Previous or planned (during the study period) obesity treatment with surgery or a weight loss device. However, the following are allowed: a) liposuction and/or abdominoplasty, if performed greater than 1 year prior to screening. b) adjustable gastric banding, if the band has been removed greater than 1 year prior to screening. c) intragastric balloon, if the balloon has been removed greater than 1 year prior to screening. d)duodenal-jejunal bypass liner (e.g., nonbarrier), if the sleeve has been removed greater than 1 year prior to screening
- Type 1 diabetes mellitus or monogenic diabetes
- Participants with endocrine, hypothalamic, or syndromic obesity
- For participants with T2D at screening, the following additional key criterion applies: Uncontrolled and potentially unstable diabetic retinopathy or maculopathy. Verified by a fundus examination performed within the past 90 days before screening or in the period between screening and randomisation. Pharmacological pupil-dilation is a requirement unless using a digital fundus photography camera specified for non-dilated examination
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| SemaglutideSemaglutide will be administered subcutaneously once weekly. | Drug | Group Kids, Group Teens |
| PlaceboPlacebo will be administered subcutaneously once-weekly. | Drug | Group Kids, Group Teens |
Primary outcome
Group Kids: Change in body mass index (BMI)
Time frame: From baseline (week 0) to week 68
Measured in percentage (%)
69 secondary outcomes
Group Kids: Improvement in weight category
Time frame: From baseline (week 0) to week 68
Group Teens: Change in BMI
Time frame: From week 0 to week 68
Group Kids and Group Teens: Change in BMI
Time frame: From week 0 to week 104
Group Teens: Improvement in weight category
Time frame: From week 0 to week 68
Group Kids and Group Teens: Improvement in weight category
Time frame: From week 0 to week 104
Group Kids and Group Teens: Change in body weight
Time frame: From week 0 to week 68
Group Kids and Group Teens: Change in body weight
Time frame: From week 0 to week 104
Group Kids and Group Teens: Change in body weight
Time frame: From week 0 to week 68
Group Kids and Group Teens: Change in body weight
Time frame: From week 0 to week 104
Group Kids and Group Teens: Change in BMI percentage of the 95th percentile
Time frame: From week 0 to week 68
Group Kids and Group Teens: Change in BMI percentage of the 95th percentile
Time frame: From week 0 to week 104
Group Kids and Group Teens: Change in BMI Standard deviation score (SDS)
Time frame: From week 0 to week 68
Group Kids and Group Teens: Change in BMI SDS
Time frame: From week 0 to week 104
Group Kids and Group Teens: Change in waist circumference
Time frame: From week 0 to week 68
Group Kids and Group Teens: Change in waist circumference
Time frame: From week 0 to week 104
Group Kids and Group Teens: Change in systolic blood pressure
Time frame: From week 0 to week 68
Group Kids and Group Teens: Change in systolic blood pressure
Time frame: From week 0 to week 104
Group Kids and Group Teens: Change in diastolic blood pressure
Time frame: From week 0 to week 68
Group Kids and Group Teens: Change in diastolic blood pressure
Time frame: From week 0 to week 104
Group Kids and Group Teens: Change in total cholesterol
Time frame: From week 0 to week 68
Group Kids and Group Teens: Change in total cholesterol
Time frame: From week 0 to week 104
Group Kids and Group Teens: Change in high density lipoprotein (HDL)
Time frame: From week 0 to week 68
Group Kids and Group Teens: Change in high density lipoprotein (HDL)
Time frame: From week 0 to week 104
Group Kids and Group Teens: Change in low density lipoprotein (LDL)
Time frame: From week 0 to week 68
Group Kids and Group Teens: Change in low density lipoprotein (LDL)
Time frame: From week 0 to week 104
Group Kids and Group Teens: Change in very low density lipoprotein (VLDL)
Time frame: From week 0 to week 68
Group Kids and Group Teens: Change in very low density lipoprotein (VLDL)
Time frame: From week 0 to week 104
Group Kids and Group Teens: Change in triglycerides
Time frame: From week 0 to week 68
Group Kids and Group Teens: Change in triglycerides
Time frame: From week 0 to week 104
Group Kids and Group Teens: Change in high sensitivity C-reactive protein (hs-CRP)
Time frame: From week 0 to week 68
Group Kids and Group Teens: Change in high sensitivity C-reactive protein (hs-CRP)
Time frame: From week 0 to week 104
Group Kids and Group Teens: Change in glycated haemoglobin (HbA1c)
Time frame: From week 0 to week 68
Group Kids and Group Teens: Change in glycated haemoglobin (HbA1c)
Time frame: From week 0 to week 104
Group Kids and Group Teens: Change in fasting plasma glucose
Time frame: From week 0 to week 68
Group Kids and Group Teens: Change in fasting plasma glucose
Time frame: From week 0 to week 104
Group Kids and Group Teens: Change in fasting plasma glucose
Time frame: From week 0 to week 68
Group Kids and Group Teens: Change in fasting plasma glucose
Time frame: From week 0 to week 104
Group Kids and Group Teens: Change in fasting insulin
Time frame: From week 0 to week 68
Group Kids and Group Teens: Change in fasting insulin
Time frame: From week 0 to week 104
Group Kids and Group Teens: Change in alanine transaminase (ALT)
Time frame: From week 0 to week 68
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 7 Oct 2026.
- Individual participant dataSharing planned: Yes. According to the Novo Nordisk disclosure commitment on novonordisk-trials.com.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Clinical Transparency dept. 2834 study director
Novo Nordisk A/S
56 sites in 10 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Semaglutide in people with Obesity, run by Novo Nordisk A/S at 56 sites in 10 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: under way, not looking for participants, as of the sponsor's last update on 7 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 56 sites in United States, Germany, United Kingdom, Belgium, Sweden and 5 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Group Kids: Change in body mass index (BMI) (time frame: From baseline (week 0) to week 68). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Oct 2026.