Research Study on How Well Oral Semaglutide Works for Weight Loss in Adults With Excess Body Weight
OASIS 5
Efficacy and Safety of Once Daily Oral Semaglutide in Adults With Overweight or Obesity
3 other identifiers
interventional
450
10 countries
62
Brief Summary
The purpose of this study is to see how oral semaglutide, when taken in lower doses help lowering of body weight in participants with excess body weight when compared to 'dummy' tablets (placebo). Results from this study will help select the most optimal lower dose of oral semaglutide that can be used for treating participants living with overweight or obesity.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_3
Started Aug 2026
62 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
Study Start
First participant enrolled
August 12, 2026
CompletedFirst Submitted
Initial submission to the registry
August 13, 2026
CompletedFirst Posted
Study publicly available on registry
August 18, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 22, 2028
ExpectedStudy Completion
Last participant's last visit for all outcomes
April 11, 2028
August 18, 2026
August 1, 2026
1.5 years
August 13, 2026
August 13, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Relative change in body weight
Measured as percentage change in body weight.
From baseline (week 0) to week 60
Secondary Outcomes (22)
Achievement of body weight reduction greater than or equal to (≥) 5 percentage (%) (Yes/No)
At week 60
Achievement of body weight reduction ≥ 10% (Yes/No)
At week 60
Achievement of body weight reduction ≥ 15% (Yes/No)
At week 60
Change in waist circumference
From baseline (week 0) to week 60
Change in body weight
From baseline (week 0) to week 60
- +17 more secondary outcomes
Study Arms (2)
Semaglutide
EXPERIMENTALParticipants will receive two different oral doses of semaglutide as an adjunct to a reduced-calorie diet and increased physical activity.
Placebo
PLACEBO COMPARATORParticipants will receive oral dose of placebo as an adjunct to a reduced-calorie diet and increased physical activity.
Interventions
Eligibility Criteria
You may qualify if:
- 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.
- Female or male (sex at birth).
- Age 18 years or above at the time of signing the informed consent.
- Body mass index (BMI) of
- ≥ 27.0 kilogram per square meter (kg/m\^2) with the presence of at least one weight-related comorbidity including, but not limited to, hypertension, dyslipidaemia, obstructive sleep apnoea or CV disease.
- ≥ 30.0 kg/m\^2.
- History of at least one self-reported unsuccessful dietary effort to lose body weight.
You may not qualify if:
- A self-reported change in body weight greater than (\>) 5% within 90 days before screening irrespective of medical records.
- HbA1c ≥ 6.5% (48 millimoles per mole \[mmol/mol\]) as measured by the central laboratory at screening.
- Consistent use of glucagon like peptide-1 (GLP-1) receptor agonists, including medication with glucagon like peptide-1 receptor agonist (GLP-1 RA) activity like dual GLP-1/gastric inhibitory peptide RAs, or amylin analogues before screening. Consistent use is defined as treatment.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Novo Nordisk A/Slead
Study Sites (62)
Uni of Alabama at Birmingham
Birmingham, Alabama, 35296, United States
Headlands Research California, LLC
Escondido, California, 92025, United States
National Research Institute - Huntington Park
Huntington Park, California, 90255, United States
Los Angeles Institute for Metabolic Research
Los Angeles, California, 90015, United States
ERG Holding Company, LLC / Evolution Research Group, LLC
Delray Beach, Florida, 33445, United States
ERG Holding Company, LLC / Evolution Research Group, LLC
Fort Myers, Florida, 33192, United States
Jedidiah Clinical Research
Tampa, Florida, 33619, United States
East West Med Res Inst
Honolulu, Hawaii, 96814, United States
L-MARC Research Center
Louisville, Kentucky, 40213, United States
StudyMetrix Research LLC
City of Saint Peters, Missouri, 63303, United States
Jubilee Clinical Research, Inc.
Las Vegas, Nevada, 89106, United States
Corvallis Clinic PC Clinical Research Department
Corvallis, Oregon, 97330-3737, United States
UPA Ctr Weight and Eating Dis
Philadelphia, Pennsylvania, 19104, United States
Spartanburg Medical Research
Spartanburg, South Carolina, 29303, United States
Cedar Health Research
Dallas, Texas, 75251, United States
Selma Medical Associates
Winchester, Virginia, 22601-3834, United States
Anima Research Center
Alken, 3570, Belgium
Imelda
Bonheiden, 2820, Belgium
UZ Brussel - Universitair Ziekenhuis Brussel
Brussels, 1090, Belgium
Universitair Ziekenhuis Gent
Ghent, 9000, Belgium
KORMONT
Kluisbergen, 9690, Belgium
AIPSMC - DiMed EOOD
Haskovo, 6300, Bulgaria
Medical Center Zdrave Lom EOOD
Lom, 3600, Bulgaria
IPMC - Dr. Elizabeta Dimitrova
Petrich, 2850, Bulgaria
MHAT Hadzhi Dimitar OOD
Sliven, 8800, Bulgaria
DCC Neoklinik EAD
Sofia, 1408, Bulgaria
DCC 1 Velingrad EOOD
Velingrad, 4600, Bulgaria
Aarhus Universitetshospital, Steno Diabetes Center Aarhus
Aarhus N, 8200, Denmark
Gentofte Hospital - Center for Klinisk Metabolisk Forskning
Hellerup, 2900, Denmark
Regionshospitalet Gødstrup, Hjertesygdomme
Herning, 7400, Denmark
Hôpital Privé Saint Martin_Service de chirurgie digestive
Caen, 14000, France
LES HOPITAUX DE CHARTRES_HOPITAL LOUIS PASTEUR_Service d'endocrinologie
Le Coudray, 28630, France
Hôpital Privé La Louvière_Service de chirurgie
Lille, 59800, France
CENTRE DE RECHERCHE CLINIQUE PORTES DU SUD_Service d'Endocrinologie-Diabétologie-Maladies Métaboliques
Vénissieux, 69200, France
City Hospital Kliniki Monoprosopi I.K.E.
Kalamata, 24100, Greece
Athens Medical Center S.A. (Iatriko Athinon) - Diabetes and Obesity Unit
Marousi, 15125, Greece
Athens Medical Center S.A. (Iatriko Peristeriou) - Diabetes, obesity and cardiometabolic diseases department
Peristeri, 121 31, Greece
NextHealth S.A. - Department of Endocrinology, Metabolism & Diabetes
Thessaloniki, 54635, Greece
Thermi Clinic S.A. - Diabetes and Internal Medicine Department
Thessaloniki, 57001, Greece
Progress Clinical Research Amsterdam
Amsterdam, 1081 GN, Netherlands
Praktijk Dokters van Nederhoven
Zwijndrecht, 3334 SB, Netherlands
Progress Clinical Research Zwolle
Zwolle, 8025 AZ, Netherlands
Kresmed Sp. z o. o.
Bialystok, 15-481, Poland
Athleticomed Sp. z o.o.
Bydgoszcz, 85-752, Poland
Gierach-Med
Bygdoszcz, 85-796, Poland
Santa Sp. z o.o.
Lodz, 90-302, Poland
Centrum Zdrowia Metabolicznego Paweł Bogdański
Poznan, 60-589, Poland
Velocity Nova Sp. z o.o.
Staszów, 28-200, Poland
NBR Polska Tomasz Klodawski
Warsaw, 00-710, Poland
Care Access Polska Sp. Z o.o.
Warsaw, 00-719, Poland
FutureMeds Sp. z o.o.
Warsaw, 03-291, Poland
HU de Fuenlabrada_Endocrinología
Fuenlabrada, Madrid, 28042, Spain
Centro Periferico De Especialidades Bola Azul
Almería, 04009, Spain
Hospital Vithas Sevilla
Castilleja de la Cuesta, 41950, Spain
Hospital Naval Ferrol
Ferrol, 15405, Spain
Clínica Palacios Madrid
Madrid, 28009, Spain
Clínica Gaias Santiago
Santiago de Compostela, 15702, Spain
Clínica Nuevas Tecnologías en Diabetes y Endocrinología
Seville, 41003, Spain
H. Infanta Luisa_Endocrino y Obesidad
Seville, 41010, Spain
CTC GoCo Mölndal
Mölndal, 431 53, Sweden
Enheten för Kliniska Studier (EKS), Örebro
Örebro, 701 85, Sweden
CTC Stockholm
Stockholm, 171 64, Sweden
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Clinical Transparency (dept. 2834)
Novo Nordisk A/S
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Masking Details
- Sponsor staff involved in the clinical trial is masked according to company standard procedures.
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 13, 2026
First Posted
August 18, 2026
Study Start
August 12, 2026
Primary Completion (Estimated)
February 22, 2028
Study Completion (Estimated)
April 11, 2028
Last Updated
August 18, 2026
Record last verified: 2026-08
Data Sharing
- IPD Sharing
- Will share
According to the Novo Nordisk disclosure commitment on novonordisk-trials.com