A Research Study on How Well Semaglutide Helps Children and Teenagers With Excess Body Weight Lose Weight (STEP Young)
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT05726227 |
Recruitment Status :
Recruiting
First Posted : February 13, 2023
Last Update Posted : May 7, 2024
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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).
Condition or disease | Intervention/treatment | Phase |
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Obesity | Drug: Semaglutide Drug: Placebo | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 210 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
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 |
Actual Study Start Date : | July 7, 2023 |
Estimated Primary Completion Date : | November 7, 2025 |
Estimated Study Completion Date : | January 15, 2027 |
Arm | Intervention/treatment |
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Experimental: Group Kids
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.
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Drug: Semaglutide
Semaglutide will be administered subcutaneously once weekly. Drug: Placebo Placebo will be administered subcutaneously once-weekly. |
Experimental: Group Teens
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.
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Drug: Semaglutide
Semaglutide will be administered subcutaneously once weekly. Drug: Placebo Placebo will be administered subcutaneously once-weekly. |
- Group Kids: Change in body mass index (BMI) [ Time Frame: From baseline (week 0) to week 68 ]Measured in percentage (%)
- Group Kids: Improvement in weight category [ Time Frame: From baseline (week 0) to week 68 ]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.
- Group Teens: Change in BMI [ Time Frame: From week 0 to week 68 ]Measured in %
- Group Kids and Group Teens: Change in BMI [ Time Frame: From week 0 to week 104 ]Measured in %
- Group Teens: Improvement in weight category [ Time Frame: From week 0 to week 68 ]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.
- Group Kids and Group Teens: Improvement in weight category [ Time Frame: From week 0 to week 104 ]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.
- Group Kids and Group Teens: Change in body weight [ Time Frame: From week 0 to week 68 ]Measured in percentage
- Group Kids and Group Teens: Change in body weight [ Time Frame: From week 0 to week 104 ]Measured in percentage
- Group Kids and Group Teens: Change in body weight [ Time Frame: From week 0 to week 68 ]Measured in kilograms (kg)
- Group Kids and Group Teens: Change in body weight [ Time Frame: From week 0 to week 104 ]Measured in kilograms (kg)
- Group Kids and Group Teens: Change in BMI percentage of the 95th percentile [ Time Frame: From week 0 to week 68 ]Measured in percentage points
- Group Kids and Group Teens: Change in BMI percentage of the 95th percentile [ Time Frame: From week 0 to week 104 ]Measured in percentage points
- Group Kids and Group Teens: Change in BMI Standard deviation score (SDS) [ Time Frame: From week 0 to week 68 ]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.
- Group Kids and Group Teens: Change in BMI SDS [ Time Frame: From week 0 to week 104 ]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.
- Group Kids and Group Teens: Change in waist circumference [ Time Frame: From week 0 to week 68 ]Measured in centimeters (cm)
- Group Kids and Group Teens: Change in waist circumference [ Time Frame: From week 0 to week 104 ]Measured in centimeters (cm)
- Group Kids and Group Teens: Change in systolic blood pressure [ Time Frame: From week 0 to week 68 ]Measured in millimeters of mercury (mmHg)
- Group Kids and Group Teens: Change in systolic blood pressure [ Time Frame: From week 0 to week 104 ]Measured in millimeters of mercury (mmHg)
- Group Kids and Group Teens: Change in diastolic blood pressure [ Time Frame: From week 0 to week 68 ]Measured in mmHg
- Group Kids and Group Teens: Change in diastolic blood pressure [ Time Frame: From week 0 to week 104 ]Measured in mmHg
- Group Kids and Group Teens: Change in total cholesterol [ Time Frame: From week 0 to week 68 ]Measured in %
- Group Kids and Group Teens: Change in total cholesterol [ Time Frame: From week 0 to week 104 ]Measured in %
- Group Kids and Group Teens: Change in high density lipoprotein (HDL) [ Time Frame: From week 0 to week 68 ]Measured in %
- Group Kids and Group Teens: Change in high density lipoprotein (HDL) [ Time Frame: From week 0 to week 104 ]Measured in %
- Group Kids and Group Teens: Change in low density lipoprotein (LDL) [ Time Frame: From week 0 to week 68 ]Measured in %
- Group Kids and Group Teens: Change in low density lipoprotein (LDL) [ Time Frame: From week 0 to week 104 ]Measured in %
- Group Kids and Group Teens: Change in very low density lipoprotein (VLDL) [ Time Frame: From week 0 to week 68 ]Measured in %
- Group Kids and Group Teens: Change in very low density lipoprotein (VLDL) [ Time Frame: From week 0 to week 104 ]Measured in %
- Group Kids and Group Teens: Change in triglycerides [ Time Frame: From week 0 to week 68 ]Measured in %
- Group Kids and Group Teens: Change in triglycerides [ Time Frame: From week 0 to week 104 ]Measured in %
- Group Kids and Group Teens: Change in high sensitivity C-reactive protein (hs-CRP) [ Time Frame: From week 0 to week 68 ]Measured in %
- Group Kids and Group Teens: Change in high sensitivity C-reactive protein (hs-CRP) [ Time Frame: From week 0 to week 104 ]Measured in %
- Group Kids and Group Teens: Change in glycated haemoglobin (HbA1c) [ Time Frame: From week 0 to week 68 ]Measured in % point
- Group Kids and Group Teens: Change in glycated haemoglobin (HbA1c) [ Time Frame: From week 0 to week 104 ]Measured in % point
- Group Kids and Group Teens: Change in fasting plasma glucose [ Time Frame: From week 0 to week 68 ]Measured in millimoles per liter (mmol/L)
- Group Kids and Group Teens: Change in fasting plasma glucose [ Time Frame: From week 0 to week 104 ]Measured in millimoles per liter (mmol/L)
- Group Kids and Group Teens: Change in fasting plasma glucose [ Time Frame: From week 0 to week 68 ]Measured in milligrams per deciliter (mg/dL)
- Group Kids and Group Teens: Change in fasting plasma glucose [ Time Frame: From week 0 to week 104 ]Measured in milligrams per deciliter (mg/dL)
- Group Kids and Group Teens: Change in fasting insulin [ Time Frame: From week 0 to week 68 ]Measured in %
- Group Kids and Group Teens: Change in fasting insulin [ Time Frame: From week 0 to week 104 ]Measured in %
- Group Kids and Group Teens: Change in alanine transaminase (ALT) [ Time Frame: From week 0 to week 68 ]Measured in milliunits per liter (mU/L)
- Group Kids and Group Teens: Change in alanine transaminase (ALT) [ Time Frame: From week 0 to week 104 ]Measured in milliunits per liter (mU/L)
- Group Kids and Group Teens: Change in total fat mass, by Dual energy X-ray absorptiometry (DXA) relative to total body mass [ Time Frame: From week 0 to week 68 ]Measured in % points
- Group Kids and Group Teens: Change in total fat mass, by Dual energy X-ray absorptiometry (DXA) relative to total body mass [ Time Frame: From week 0 to week 104 ]Measured in % points
- Group Kids and Group Teens: Change in lean body mass, by DXA relative to total body mass [ Time Frame: From week 0 to week 68 ]Measured in % points
- Group Kids and Group Teens: Change in lean body mass, by DXA relative to total body mass [ Time Frame: From week 0 to week 104 ]Measured in % points
- Group Kids and Group Teens: Relative change in visceral fat mass by DXA [ Time Frame: From week 0 to week 68 ]Measured in %
- Group Kids and Group Teens: Relative change in visceral fat mass by DXA [ Time Frame: From week 0 to week 104 ]Measured in %
- Group Kids and Group Teens: Number of participants achieving greater than or equal to (>=) 5% reduction of BMI (yes/no) [ Time Frame: From week 0 to week 68 ]Measured in count of participants
- Group Kids and Group Teens: Number of participants achieving greater than or equal to (>=) 5% reduction of BMI (yes/no) [ Time Frame: From week 0 to week 104 ]Measured in count of participants
- Group Kids and Group Teens: Number of participants achieving greater than or equal to (>=) 10% reduction of BMI (yes/no) [ Time Frame: From week 0 to week 68 ]Measured in count of participants
- Group Kids and Group Teens: Number of participants achieving greater than or equal to (>=) 10% reduction of BMI (yes/no) [ Time Frame: From week 0 to week 104 ]Measured in count of participants
- Group Kids and Group Teens: Number of participants achieving greater than or equal to (>=) 15% reduction of BMI (yes/no) [ Time Frame: From week 0 to week 68 ]Measured in count of participants
- Group Kids and Group Teens: Number of participants achieving greater than or equal to (>=) 15% reduction of BMI (yes/no) [ Time Frame: From week 0 to week 104 ]Measured in count of participants
- Group Kids and Group Teens: Number of treatment emergent adverse events (AEs) [ Time Frame: From week 0 to week 68 ]Measured as count of events
- Group Kids and Group Teens: Number of treatment emergent adverse events (AEs) [ Time Frame: From week 0 to week 111 ]Measured as count of events
- Group Kids and Group Teens: Number of treatment emergent serious adverse events (SAEs) [ Time Frame: From week 0 to week 68 ]Measured as count of events
- Group Kids and Group Teens: Number of treatment emergent serious adverse events (SAEs) [ Time Frame: From week 0 to week 111 ]Measured as count of events
- Group Kids and Group Teens: Change in pulse [ Time Frame: From week 0 to week 68 ]Measured as beats per minute
- Group Kids and Group Teens: Change in pulse [ Time Frame: From week 0 to week 104 ]Measured as beats per minute
- Group Kids and Group Teens: Change in amylase [ Time Frame: From week 0 to week 68 ]Measured as units per liter (U/L)
- Group Kids and Group Teens: Change in amylase [ Time Frame: From week 0 to week 104 ]Measured as units per liter (U/L)
- Group Kids and Group Teens: Change in lipase [ Time Frame: From week 0 to week 68 ]Measured as U/L
- Group Kids and Group Teens: Change in lipase [ Time Frame: From week 0 to week 104 ]Measured as U/L
- Group Kids and Group Teens: Change in calcitonin [ Time Frame: From week 0 to week 68 ]Measured as nanograms per liter (ng/L)
- Group Kids and Group Teens: Change in calcitonin [ Time Frame: From week 0 to week 104 ]Measured as nanograms per liter (ng/L)
- Group Kids and Group Teens: Change in bone mineral density, by DXA [ Time Frame: From week 0 to week 68 ]Measured as grams per square centimeter (g/cm^2)
- Group Kids and Group Teens: Change in bone mineral density, by DXA [ Time Frame: From week 0 to week 104 ]Measured as grams per square centimeter (g/cm^2)
- Group Kids and Group Teens: Number of treatment emergent hypoglycaemic episodes (for T2D only) [ Time Frame: From week 0 to week 68 ]Measured as count of episodes
- Group Kids and Group Teens: Number of treatment emergent hypoglycaemic episodes (for T2D only) [ Time Frame: From week 0 to week 111 ]Measured as count of episodes
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Ages Eligible for Study: | 6 Years to 18 Years (Child, Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- 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
Exclusion Criteria:
- 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
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05726227
Contact: Novo Nordisk | (+1) 866-867-7178 | clinicaltrials@novonordisk.com |
Study Director: | Clinical Transparency dept. 2834 | Novo Nordisk A/S |
Responsible Party: | Novo Nordisk A/S |
ClinicalTrials.gov Identifier: | NCT05726227 |
Other Study ID Numbers: |
NN9536-4512 U1111-1266-3808 ( Other Identifier: World Health Organization (WHO) ) 2022-502922-41 ( EudraCT Number ) |
First Posted: | February 13, 2023 Key Record Dates |
Last Update Posted: | May 7, 2024 |
Last Verified: | May 2024 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | According to the Novo Nordisk disclosure commitment on novonordisk-trials.com. |
URL: | http://novonordisk-trials.com |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Obesity Overweight Overnutrition Nutrition Disorders Body Weight |
Semaglutide Glucagon-Like Peptide-1 Receptor Agonists Hypoglycemic Agents Physiological Effects of Drugs |