Research Study to Investigate How Well Semaglutide Tablets Taken Once Daily Work in East Asian People Who Are Overweight or Living With Obesity
OASIS 2
Efficacy and Safety of Oral Semaglutide 50 mg Once Daily in East Asian Participants With Overweight or Obesity
2 other identifiers
interventional
201
2 countries
13
Brief Summary
Novo Nordisk are doing this study to see if semaglutide tablets can be used as a treatment to help people living with overweight or obesity lose weight. This study will look at the change in participants' body weight. Participants will either get semaglutide tablets (new medicine) or placebo tablets ('dummy' medicine that looks like semaglutide but has no effect on the body). For a fair comparison, people are divided into two groups at random by a computer. This process is called randomisation. Semaglutide tablets are new medicine being tested to treat overweight and obesity. Doctors in many countries can already prescribe semaglutide tablets at lower doses to treat type 2 diabetes. Participants will get semaglutide or placebo tablets for 68 weeks and will need to take 1 tablet every morning. In addition to taking the medicine, participants will have talks with study staff about:
- healthy food choices
- how to be more physically active
- what participants can do to lose weight The study will last for about 1½ year. Participants will have 14 clinic visits and 7 phone calls with the study healthcare professional. Blood samples will be taken at 12 visits. Women cannot take part if pregnant, breast-feeding or planning to get pregnant during the study period. If participants are a woman and are able to become pregnant, participants will be checked for pregnancy via urine tests.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_3
Started Nov 2021
13 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 11, 2021
CompletedStudy Start
First participant enrolled
November 16, 2021
CompletedFirst Posted
Study publicly available on registry
November 24, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 11, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
September 1, 2023
CompletedJune 6, 2025
June 1, 2025
1.6 years
November 11, 2021
June 4, 2025
Conditions
Outcome Measures
Primary Outcomes (2)
Relative change in body weight
Percentage-point
From baseline (week 0) to end of treatment (week 68)
Achievement of body weight reduction greater than or equal to 5% (Yes/No)
Count of participants
At end of treatment (week 68)
Secondary Outcomes (20)
Achievement of body weight reduction greater than or equal to 10% (Yes/No)
At end of treatment (week 68)
Change in Physical function domain (5-items) score (IWQOL-Lite-CT)
From baseline (week 0) to end of treatment (week 68)
Achievement of body weight reduction greater than or equal to 15% (Yes/No)
At end of treatment (week 68)
Achievement of body weight reduction greater than or equal to 20% (Yes/No)
At end of treatment (week 68)
Change in body mass index (BMI)
From baseline (week 0) to end of treatment (week 68)
- +15 more secondary outcomes
Study Arms (2)
oral semaglutide 50 mg once daily
EXPERIMENTALAll participants will get semaglutide or placebo tablets, 1 tablet every morning.
oral semaglutide placebo once daily
PLACEBO COMPARATORAll participants will get semaglutide or placebo tablets, 1 tablet every morning.
Interventions
Participants will have semaglutide for 68 weeks and will have 1 tablet every morning. Dose gradually increased to 50 mg.
Participants will have placebo tablets for 68 weeks and will have 1 tablet every morning.
Eligibility Criteria
You may qualify if:
- Participants are eligible to be included in the study only if all the following criteria apply:
- Informed consent 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.
- Male or female, age above or equal to 18 years at the time of signing informed consent
- Body mass index (BMI) of greater than or equal to 27.0 kg/m\^2 with greater than or equal to 2 weight related comorbidities (treated or untreated) according to the JASSO guideline or BMI greater than or equal to 35.0 kg/m\^2 with greater than or equal to1 weight related comorbidity (treated or untreated) according to the JASSO guideline. At least one comorbidity should be hypertension, dyslipidaemia or type 2 diabetes (T2D)
- History of at least one self-reported unsuccessful dietary effort to lose body weight
- Diagnosed with T2D greater than or equal to 180 days prior to screening
- Treated with either diet and exercise alone or stable treatment (same drug(s), dose and dosing frequency) for at least 60 days prior to the day of screening with up to 3 oral antidiabetic drugs (OADs) alone or in any combination (metformin, α-glucosidase (AGI), sulphonylureas (SU), glinides, SGLT2i (sodium-glucose co-transporter 2 inhibitor) or thiazolidinediones)
- HbA1c 7.0-10.0% (53-86 mmol/mol) (both inclusive) as measured by central laboratory at screening
You may not qualify if:
- Participants without T2D only:
- HbA1c greater than or equal to 6.5% (48 mmol/mol) 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 prior to screening
- Renal impairment measured as estimated Glomerular Filtration Rate (eGFR) value of eGFR brlow 15 ml/min/1.73 m\^2 according to Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) creatinine equation as defined by kidney disease improving global outcomes (KDIGO) 2012 classification by the central laboratory at screening
- Participants with T2D at screening only:
- Receipt of any other anti-diabetic investigational drug within 90 days prior to screening for this study, or receipt of any investigational drugs not affecting diabetes within 30 days prior to screening for this study
- Uncontrolled and potentially unstable diabetic retinopathy or maculopathy. Verified by a fundus examination performed by an ophthalmologist or another suitably qualified health care provider within the past 90 days prior to 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.
- Renal impairment measured as eGFR value of below 30 mL/min/1.73 m\^2 according to CKD EPI creatinine equation as defined by KDIGO 2012 classification by the central laboratory at screening
- In participants treated with SGLT2i, renal impairment measured as eGFR value of below 60 mL/min/1.73 m\^2 according to CKD EPI creatinine equation as defined by KDIGO 2012 classification by the central laboratory at screening
- The following criteria apply to all participants:
- Obesity-related:
- Treatment with any medication indicated for weight management within 90 days prior to screening
- Previous or planned (during the study period) obesity treatment with surgery or a weight loss device. However, the following are allowed: (1) liposuction and/or abdominoplasty, if performed greater than 1 year prior to screening, (2) lap banding, if the band has been removed greater than 1 year prior to screening, (3) intragastric balloon, if the balloon has been removed greater than 1 year prior to screening or (4) duodenal-jejunal bypass sleeve, if the sleeve has been removed greater than 1 year prior to screening
- Uncontrolled thyroid disease per investigators discretion
- +1 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Novo Nordisk A/Slead
Study Sites (13)
Iryouhoujinsyadan Shoureikan Shinsapporo Seiryou Hospital
Sapporo, Hokkaido, 004-0004, Japan
Tsuruma Kaneshiro Diabetes Clinic
Yamato-shi, Kanagawa, 242-0004, Japan
OCROM Clinic
Suita-shi, Osaka, 565-0853, Japan
Naka Kinen Clinic
Ibaraki, 311-0113, Japan
Toranomon Hospital, Endocrinology and Metabolism
Minato-ku, Tokyo, 105-8470, Japan
Osaka University Hospital
Osaka, 565-0871, Japan
Takatsuki Red Cross Hospital
Osaka, 569-1045, Japan
Tokyo Center Clinic
Tokyo, 103-0028, Japan
ToCROM Clinic
Tokyo, 160-0008, Japan
Kyungpook National University Hospital
Daegu, 41944, South Korea
Seoul National University Bundang Hospital
Gyeonggi-do, 13620, South Korea
Gachon University Gil Medical Center
Incheon, 21565, South Korea
Kangbuk Samsung Hospital
Seoul, 03181, South Korea
Related Publications (1)
Kadowaki T, Heftdal LD, Ko HJ, Overvad M, Shimomura I, Thamattoor UK, Kim KK; OASIS 2 Investigators. Oral Semaglutide in an East Asian Population With Overweight or Obesity, With or Without Type 2 Diabetes: The OASIS 2 Randomized Clinical Trial. JAMA Intern Med. 2025 Oct 1;185(10):1206-1217. doi: 10.1001/jamainternmed.2025.3599.
PMID: 40758358DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Clinical Transparency (dept. 1452)
Novo Nordisk A/S
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 11, 2021
First Posted
November 24, 2021
Study Start
November 16, 2021
Primary Completion
July 11, 2023
Study Completion
September 1, 2023
Last Updated
June 6, 2025
Record last verified: 2025-06
Data Sharing
- IPD Sharing
- Will share
"According to the Novo Nordisk disclosure commitment on novonordisk-trials.com"