Skip to content

A Research Study to See How Semaglutide Helps People With Excess Weight, Lose Weight (STEP UP)

Effect and Safety of Semaglutide 7.2 mg Once-weekly in Participants With Obesity

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05646706
Acronym
STEP UP
Enrollment
1407
Registered
2022-12-12
Start date
2023-01-04
Completion date
2024-11-26
Last updated
2026-04-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Obesity

Brief summary

This study will look at how much weight participants will lose from the start to the end of the study. The weight loss in participants taking the investigational high dose of semaglutide will be compared to the weight loss in people taking "dummy" medicine and a lower dose of semaglutide. In addition to taking the medicine, participants will have talks with study staff about healthy food choices and how to be more physically active. Participants will either get semaglutide or "dummy" medicine. Which treatment participants get is decided by chance. Participants are more likely (4 out of 5) to get semaglutide than the "dummy" medicine. The study medicine will be injected briefly, under skin, with a thin needle, typically in the stomach, thighs, or upper arms. In the first part of the study, participants will get one injection once a week until they reach the planned dose. The second part of the study, which might last a couple of months, is a transition period, where participant will get three injections, taken right after each other, once a week. The duration of the study intervention (trial product and lifestyle intervention) will be 72 weeks followed by a 9-week follow-up period without study interventions.

Interventions

DRUGSemaglutide

Participants will receive once-weekly s.c. injections of semaglutide in escalating doses (0.25 mg, 0.5 mg, 1.0 mg, 1.7 mg, 2.4 mg and 7.2 mg) every fourth week. Treatment was continued on the maintenance dose of 7.2 mg once-weekly for an additional 52 weeks. Injections may be administered in the thigh, abdomen, or upper arm, at any time of day irrespective of meals.

DRUGPlacebo

Participants will receive once-weekly s.c. injection of placebo matched to semaglutide for 72 weeks. Injections may be administered in the thigh, abdomen, or upper arm, at any time of day irrespective of meals.

Sponsors

Novo Nordisk A/S
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Male or female. * Age above or equal to 18 years at the time of signing informed consent. * Body mass index (BMI) greater than or equal to 30.0 kilogram per square meter (kg/m\^2). * History of at least one self-reported unsuccessful dietary effort to lose body weight.

Exclusion criteria

* HbA1c greater than or equal to 48 millimoles per mole (mmol/mol) (6.5 percent) as measured by the central laboratory at screening. * History of type 1 or type 2 diabetes. * Treatment with glucose-lowering agent(s) within 90 days before screening. * A self-reported change in body weight greater than 5 kilograms (kg) (11 pounds) within 90 days before screening irrespective of medical records. * Personal or first-degree relative(s) history of multiple endocrine neoplasia type 2 or medullary thyroid carcinoma.

Design outcomes

Primary

MeasureTime frameDescription
Semaglutide 7.2 mg Versus Placebo: Relative Change in Body WeightBaseline (week 0), End of treatment (week 72)Relative change in body weight from baseline (week 0) to end of treatment (week 72) is presented.
Semaglutide 7.2 mg Versus Placebo: Number of Participants Who Achieve Body Weight Reduction Greater Than or Equal to (>=) 5% (Yes/no)At week 72Number of participants who achieve body weight reduction \>=5% from baseline (week 0) is presented in categories as "yes" or "no" where "yes" defines participants who achieved body weight reduction \>=5% and "no" defines participants who did not achieve body weight reduction \>=5%.

Secondary

MeasureTime frameDescription
Semaglutide 7.2 mg Versus Placebo: Number of Participants Who Achieve Body Weight Reduction >=10% (Yes/no)At week 72Number of participants who achieve body weight reduction \>=10% from baseline (week 0) is presented in categories as "yes" or "no" where "yes" defines participants who achieved body weight reduction \>=10% and "no" defines participants who did not achieve body weight reduction \>=10%.
Semaglutide 7.2 mg Versus Placebo: Number of Participants Who Achieve Body Weight Reduction >=15% (Yes/no)At week 72Number of participants who achieve body weight reduction \>=15% from baseline (week 0) is presented in categories as "yes" or "no" where "yes" defines participants who achieved body weight reduction \>=15% and "no" defines participants who did not achieve body weight reduction \>=15%.
Semaglutide 7.2 mg Versus Placebo: Number of Participants Who Achieve Body Weight Reduction >=20% (Yes/no)At week 72Number of participants who achieve body weight reduction \>=20% from baseline (week 0) is presented in categories as "yes" or "no" where "yes" defines participants who achieved body weight reduction \>=20% and "no" defines participants who did not achieve body weight reduction \>=20%.
Semaglutide 7.2 mg Versus Placebo: Number of Participants Who Achieve Body Weight Reduction >=25% (Yes/no)At week 72Number of participants who achieve body weight reduction \>=25% from baseline (week 0) is presented in categories as "yes" or "no" where "yes" defines participants who achieved body weight reduction \>=25% and "no" defines participants who did not achieve body weight reduction \>=25%.
Semaglutide 7.2 mg Versus Placebo: Change in Waist CircumferenceBaseline (week 0), End of treatment (week 72)Change in waist circumference from baseline (week 0) to end of treatment (week 72) is presented.
Semaglutide 7.2 mg Versus Semaglutide 2.4 mg: Relative Change in Body WeightBaseline (week 0), End of treatment (week 72)Relative change in body weight from baseline (week 0) to end of treatment (week 72) is presented.
Semaglutide 7.2 mg Versus Semaglutide 2.4 mg: Number of Participants Who Achieve Body Weight Reduction >=20% (Yes/no)At week 72Number of participants who achieve body weight reduction \>=20% from baseline (week 0) is presented in categories as "yes" or "no" where "yes" defines participants who achieved body weight reduction \>=20% and "no" defines participants who did not achieve body weight reduction \>=20%.
Semaglutide 7.2 mg Versus Semaglutide 2.4 mg: Number of Participants Who Achieve Body Weight Reduction >=25% (Yes/no)At week 72Number of participants who achieve body weight reduction \>=25% from baseline (week 0) is presented in categories as "yes" or "no" where "yes" defines participants who achieved body weight reduction \>=25% and "no" defines participants who did not achieve body weight reduction \>=25%.
Semaglutide 7.2 mg Versus Placebo: Change in Body WeightBaseline (week 0), End of treatment (week 72)Change in body weight from baseline (week 0) to end of treatment (week 72) is presented.
Semaglutide 7.2 mg Versus Placebo: Change in Body Mass Index (BMI)Baseline (week 0), End of treatment (week 72)Change in BMI from baseline (week 0) to end of treatment (week 72) is presented.
Semaglutide 7.2 mg Versus Semaglutide 2.4 mg: Change in Body WeightBaseline (week 0), End of treatment (week 72)Change in body weight from baseline (week 0) to end of treatment (week 72) is presented.
Pooled Semaglutide Versus Placebo: Change in Total Fat Volume (%)Baseline (week 0), End of treatment (week 72)Change in total fat volume (%) from baseline (week 0) to end of treatment (week 72) is presented.
Pooled Semaglutide Versus Placebo: Change in Total Fat Volume (Liters)Baseline (week 0), End of treatment (week 72)Change in total fat volume (liters) from baseline (week 0) to end of treatment (week 72) is presented.
Pooled Semaglutide Versus Placebo: Change in Lean Body Volume (%)Baseline (week 0), End of treatment (week 72)Change in lean body volume (%) from baseline (week 0) to end of treatment (week 72) is presented.
Pooled Semaglutide Versus Placebo: Change in Lean Body Volume (Liters)Baseline (week 0), End of treatment (week 72)Change in lean body volume (liters) from baseline (week 0) to end of treatment (week 72) is presented.
Pooled Semaglutide Versus Placebo: Change in Visceral Fat Volume (%)Baseline (week 0), End of treatment (week 72)Change in visceral fat volume (%) from baseline (week 0) to end of treatment (week 72) is presented.
Pooled Semaglutide Versus Placebo: Change in Visceral Fat Volume (Liters)Baseline (week 0), End of treatment (week 72)Change in visceral fat volume (liters) from baseline (week 0) to end of treatment (week 72) is presented.
Pooled Semaglutide Versus Placebo: Change in Body Weight (%)Baseline (week 0), End of treatment (week 72)Change in body weight (%) from baseline (week 0) to end of treatment (week 72) is presented.
Pooled Semaglutide Versus Placebo: Change in Body Weight (Kg)Baseline (week 0), End of treatment (week 72)Change in body weight (Kg) from baseline (week 0) to end of treatment (week 72) is presented.
Semaglutide 7.2 mg Versus Placebo: Change in Systolic Blood PressureBaseline (week 0), End of treatment (week 72)Change in systolic blood pressure from baseline (week 0) to end of treatment (week 72) is presented.
Semaglutide 7.2 mg Versus Placebo: Change in Diastolic Blood PressureBaseline (week 0), End of treatment (week 72)Change in diastolic blood pressure from baseline (week 0) to end of treatment (week 72) is presented.
Semaglutide 7.2 mg Versus Placebo: Change in Total Cholesterol (Milligram Per Deciliter [mg/dL]) - Ratio to BaselineBaseline (week 0), End of treatment (week 72)Change in total cholesterol in mg/dL from baseline (week 0) to end of treatment (week 72) is presented as ratio to baseline (week 0).
Semaglutide 7.2 mg Versus Placebo: Change in Total Cholesterol (Millimoles Per Liter [mmol/L]) - Ratio to BaselineBaseline (week 0), End of treatment (week 72)Change in total cholesterol in mmol/L from baseline (week 0) to end of treatment (week 72) is presented as ratio to baseline (week 0).
Semaglutide 7.2 mg Versus Placebo: Change in High-density Lipoprotein (HDL) Cholesterol (mg/dL) - Ratio to BaselineBaseline (week 0), End of treatment (week 72)Change in HDL cholesterol in mg/dL from baseline (week 0) to end of treatment (week 72) is presented as ratio to baseline (week 0).
Semaglutide 7.2 mg Versus Placebo: Change in High-density Lipoprotein (HDL) Cholesterol (mmol/L) - Ratio to BaselineBaseline (week 0), End of treatment (week 72)Change in HDL cholesterol in mmol/L from baseline (week 0) to end of treatment (week 72) is presented as ratio to baseline (week 0).
Semaglutide 7.2 mg Versus Placebo: Change in Low-density Lipoprotein (LDL) Cholesterol (mg/dL)- Ratio to BaselineBaseline (week 0), End of treatment (week 72)Change in LDL cholesterol in mg/dL from baseline (week 0) to end of treatment (week 72) is presented as ratio to baseline (week 0).
Semaglutide 7.2 mg Versus Placebo: Change in Low-density Lipoprotein (LDL) Cholesterol (mmol/L)- Ratio to BaselineBaseline (week 0), End of treatment (week 72)Change in LDL cholesterol in mmol/L from baseline (week 0) to end of treatment (week 72) is presented as ratio to baseline (week 0).
Semaglutide 7.2 mg Versus Placebo: Change in Very Low-density Lipoprotein (VLDL) Cholesterol (mg/dL) - Ratio to BaselineBaseline (week 0), End of treatment (week 72)Change in VLDL cholesterol in mg/dL from baseline (week 0) to end of treatment (week 72) is presented as ratio to baseline (week 0).
Semaglutide 7.2 mg Versus Placebo: Change in Very Low-density Lipoprotein (VLDL) Cholesterol (mmol/L) - Ratio to BaselineBaseline (week 0), End of treatment (week 72)Change in VLDL cholesterol in mmol/L from baseline (week 0) to end of treatment (week 72) is presented as ratio to baseline (week 0).
Semaglutide 7.2 mg Versus Placebo: Change in Triglycerides (mg/dL) - Ratio to BaselineBaseline (week 0), End of treatment (week 72)Change in triglycerides in mg/dL from baseline (week 0) to end of treatment (week 72) is presented as ratio to baseline (week 0).
Semaglutide 7.2 mg Versus Placebo: Change in Triglycerides (mmol/L) - Ratio to BaselineBaseline (week 0), End of treatment (week 72)Change in triglycerides in mmol/L from baseline (week 0) to end of treatment (week 72) is presented as ratio to baseline (week 0).
Semaglutide 7.2 mg Versus Placebo: Change in High-sensitivity C-reactive Protein (hsCRP) - Ratio to BaselineBaseline (week 0), End of treatment (week 72)Change in hsCRP (milligram per liter \[mg/L\]) from baseline (week 0) to end of treatment (week 72) is presented as ratio to baseline (week 0).
Semaglutide 7.2 mg Versus Placebo: Number of Participants With Change in Lipid-lowering Treatment (Decrease, no Change, Increase)At week 72Number of participants with change in lipid-lowering treatment from baseline (week 0) is presented in categories as decrease, no change and increase.
Semaglutide 7.2 mg Versus Placebo: Number of Participants With Change in Antihypertensive Treatment (Decrease, no Change, Increase)At week 72Number of participants with change in antihypertensive treatment from baseline (week 0) is presented in categories as decrease, no change and increase.
Semaglutide 7.2 mg Versus Placebo: Change in Glycated Haemoglobin (HbA1c)Baseline (week 0), End of treatment (week 72)Change in HbA1c from baseline (week 0) to end of treatment (week 72) is presented.
Semaglutide 7.2 mg Versus Placebo: Change in Fasting Plasma GlucoseBaseline (week 0), End of treatment (week 72)Change in fasting plasma glucose from baseline (week 0) to end of treatment (week 72) is presented.
Semaglutide 7.2 mg Versus Placebo: Change in Fasting Serum Insulin (Picomoles Per Liter [Pmol/L]) - Ratio to BaselineBaseline (week 0), End of treatment (week 72)Change in fasting serum insulin in pmol/L from baseline (week 0) to end of treatment (week 72) is presented as ratio to baseline (week 0).
Semaglutide 7.2 mg Versus Placebo: Change in Fasting Serum Insulin (Milliinternational Units Per Milliliter [mIU/mL]) - Ratio to BaselineBaseline (week 0), End of treatment (week 72)Change in fasting serum insulin in mIU/ml from baseline (week 0) to end of treatment (week 72) is presented as ratio to baseline (week 0).
Semaglutide 7.2 mg Versus Placebo: Number of Participants With Change in Glycaemic Category (Normo-glycaemia, Pre-diabetes)Baseline (week 0), end of treatment (week 72)Number of participants with change in glycaemic category from baseline (week 0) to the end of treatment (week 72) is presented. These categories were set as per the following criteria: 1) Normo-glycaemia: glycated haemoglobin (HbA1c) \<5.7%; 2) Pre-diabetes: 5.7% \<= HbA1c \< 6.5%
Semaglutide 7.2 mg Versus Placebo: Number of Adverse Events (AEs)From baseline (week 0) to end of study (week 81)Number of AEs is reported. An AE is any untoward medical occurrence in a clinical study participant that is temporally associated with the use of investigational medicinal product (IMP), whether or not considered related to the IMP.
Semaglutide 7.2 mg Versus Placebo: Number of Serious Adverse Events (SAEs)From baseline (week 0) to end of study (week 81)Number of SAEs is reported. A SAE is any untoward medical occurrence that fulfils at least one of the following criteria: results in death, is life threatening, requires inpatient hospitalisation or prolongation of existing hospitalisation, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect or important medical event.
Semaglutide 7.2 mg Versus Placebo: Change in PulseBaseline (week 0), End of treatment (week 72)Change in pulse from baseline (week 0) to end of treatment (week 72) is presented.
Semaglutide 7.2 mg Versus Semaglutide 2.4 mg: Number of AEsFrom baseline (week 0) to end of study (week 81)Number of AEs is reported. An AE is any untoward medical occurrence in a clinical study participant that is temporally associated with the use of IMP, whether or not considered related to the IMP.
Semaglutide 7.2 mg Versus Semaglutide 2.4 mg: Number of SAEsFrom baseline (week 0) to end of study (week 81)Number of SAEs is reported. A SAE is any untoward medical occurrence that fulfils at least one of the following criteria: results in death, is life threatening, requires inpatient hospitalisation or prolongation of existing hospitalisation, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect or important medical event.

Countries

Bulgaria, Canada, Czechia, Germany, Greece, Hungary, Norway, Poland, Portugal, Slovakia, South Africa, United States

Contacts

STUDY_DIRECTORClinical Transparency (dept. 2834)

Novo Nordisk A/S

Participant flow

Recruitment details

The trial was conducted at 90 sites in 11 countries as follows: Bulgaria, Canada, Germany, Greece, Hungary, Norway, Poland, Portugal, Slovakia, South Africa, and the Unites States.

Pre-assignment details

The trial included a treatment period of 72 weeks (20 weeks of dose escalation and 52 weeks of maintenance period) followed by 9-week follow-up period. Participants were randomized in 5:1:1 ratio in either semaglutide 7.2 milligrams (mg), semaglutide 2.4 mg or placebo as an adjunct to reduced-calorie diet and increased physical activity.

Baseline characteristics

Characteristic
Age, Continuous47 Years
STANDARD_DEVIATION 12
Ethnicity (NIH/OMB)
Hispanic or Latino
44 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
189 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
3 Participants
Race (NIH/OMB)
Asian
7 Participants
Race (NIH/OMB)
Black or African American
17 Participants
Race (NIH/OMB)
More than one race
1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
3 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
1203 Participants
Sex: Female, Male
Female
1037 Participants
Sex: Female, Male
Male
252 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 1,0050 / 2010 / 201
other
Total, other adverse events
784 / 1,004140 / 201117 / 201
serious
Total, serious adverse events
73 / 1,00422 / 20111 / 201

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 7, 2026