ObesityPhase 3NCT05064735
Research Study Looking at How Well Semaglutide Works in People Suffering From Obesity and Knee Osteoarthritis
A Phase 3 study testing semaglutide 2.4 mg in people with Obesity, run by Novo Nordisk A/S at 122 sites in 11 countries.
Trial summary
This study will look at participants body weight from the start to the end of the study. It will also look at how much pain participants have in participants knee from the start to the end of the study and how this affects participants daily life. Read more about this study
- Who is it for?
- Any ageHealthy volunteers can take part
- Conditions the study is for
- Obesity
- What is being tested?
- semaglutide 2.4 mg
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 407 participants
- Where
- 122 sitesin 11 countries
- Study dates
- 1 Oct 2021to 8 Sep 2023
- Phase
- Phase 3
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
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 Any age
- All sexes
- Healthy volunteers accepted
- Child, Adult, Older adult
Who may be able to join
- Male or female, age above or equal to 18 years at the time of signing informed consent
- Body Mass Index (BMI) equal to or greater than 30.0 kg/m^2
- Clinical diagnosis of knee OA (American College of Rheumatology (ACR) criteria) with moderate radiographic changes (Kellgren-Lawrence (KL) grades 2 or 3 as per central reading) in target knee. Target knee joint is defined as most symptomatic knee at screening. If pain in knees are equal target knee joint will be in the most dominant leg.
- Pain due to knee OA
Who cannot join
- Joint replacement in target knee
- Arthroscopy or injections into target knee within last 3 months prior to enrolment
- Any other joint disease in the target knee
Trial locations and contacts
122 sites in 11 countries.
122 sites in 11 countries
United States61 sites
Anaheim Clinical Trials, LLC
Anaheim, California, 92801
Maryland Veterans Administration Health Care System
Baltimore, Maryland, 21201
Stuart L. Silverman MD - A Medical Corporation
Beverly Hills, California, 90211
Brigham & Women's Hospital
Boston, Massachusetts, 02115-5804
University of North Carolina- Chapel Hill Adults
Chapel Hill, North Carolina, 27517
Velocity Clin Res_Cincinnati
Cincinnati, Ohio, 45242
StudyMetrix Research LLC
City of Saint Peters, Missouri, 63303
Louis Stokes Clvlnd VA Med Ctr
Cleveland, Ohio, 44106-1702
Cleveland Clinic_Cleveland
Cleveland, Ohio, 44195
Altoona Osteoporosis Center
Duncansville, Pennsylvania, 16635-8406
Centennial Medical Group
Elkridge, Maryland, 21075-6437
MediSphere Medical RC
Evansville, Indiana, 47714
Prestige Clinical Research
Franklin, Ohio, 45005
Valley Research
Fresno, California, 93720
Providence Medical Foundation
Fullerton, California, 92835
Medication Mgmnt, LLC_Grnsboro
Greensboro, North Carolina, 27405
PharmQuest Life Sciences LLC
Greensboro, North Carolina, 27408
Clinical Invest Special_Gurnee
Gurnee, Illinois, 60031
Clinical Research of Hollywood_Hollywood
Hollywood, Florida, 33024
East West Medical Research Institute_Honolulu
Honolulu, Hawaii, 96814
PrimeCare Medical Group
Houston, Texas, 77024
Southwest Houston Research Ltd
Houston, Texas, 77099
Westside Center For Clinical Research
Jacksonville, Florida, 32205
Jacksonville Ctr For Clin Res
Jacksonville, Florida, 32216
The Center For Pharmaceutical Research PC
Kansas City, Missouri, 64114
Tennova HC Turkey Creek MC
Knoxville, Tennessee, 37934
L-MARC Research Center
Louisville, Kentucky, 40213
Well Pharma Medical Research Corp
Miami, Florida, 33143
Baptist Health System
Montgomery, Alabama, 36106
Accellacare US Inc._SC
Mt. Pleasant, South Carolina, 29464
NYU Langone Medical Cent-Joan H Tisch Cnt for Women's Health
New York, New York, 10010
Hospital For Special Surgery
New York, New York, 10021
Health Res of Hampton Roads
Newport News, Virginia, 23606
Coastal Carolina Res Ctr.
North Charleston, South Carolina, 29405
Renstar Medical Research
Ocala, Florida, 34470
Capital Clin Res Ctr,LLC
Olympia, Washington, 98502
Desert Oasis Hlthcr Med Group
Palm Springs, California, 92262
The University of Penn Center
Philadelphia, Pennsylvania, 19104-3317
Parkside Family Medicine
Philadelphia, Pennsylvania, 19144
Ortho Arizona
Phoenix, Arizona, 85018
Clinical Trial Res Assoc,Inc
Plantation, Florida, 33324
Rhode Island Hospital
Providence, Rhode Island, 02903
Raleigh Medical Group
Raleigh, North Carolina, 27609-7216
National Clin Res Inc.
Richmond, Virginia, 23294
Rochester Clinical Research, Inc.
Rochester, New York, 14609
KU MedWest
Shawnee Mission, Kansas, 66217
Evanston Premier Hlthcr Res
Skokie, Illinois, 60077
Encompass Clinical Research_Spring Valley
Spring Valley, California, 91978
Sundance Clinical Research LLC
St Louis, Missouri, 63141
Palmetto Clinical Research
Summerville, South Carolina, 29485
DaVita Clinical Research - New York
The Bronx, New York, 10461
DM Clin Rsrch/Fam Diag Clinic
Tomball, Texas, 77375
Arcturus Healthcare, PLC.
Troy, Michigan, 48098
Velocity Clin. Res Valparaiso
Valparaiso, Indiana, 46383
New Venture Medical Research
Wadsworth, Ohio, 44281
Diablo Clinical Research, Inc.
Walnut Creek, California, 94598
Clinical Invest Special_Gurnee
Wauconda, Illinois, 60084
Southgate Medical Group, LLP
West Seneca, New York, 14224
Great Lakes Medical Research
Westfield, New York, 14787
Accellacare
Wilmington, North Carolina, 28401
Piedmont Medical Research Associates
Winston-Salem, North Carolina, 27103
Canada16 sites
Manna Research Inc. (Burlington N)
Burlington, Ontario, L7M 4Y1
C-endo Diab Endo Clin Calgery
Calgary, Alberta, T2V 4J2
C-endo Diab & Endo Clinic
Edmonton, Alberta, T6H 2L4
Wharton Med Clin Trials
Hamilton, Ontario, L8L 5G8
Premier Clinical Trial Research Network (PCTRN)
Hamilton, Ontario, L8M 1K7
Milestone Research
London, Ontario, N5W 6A2
G.A. Research Associates Ltd.
Moncton, New Brunswick, E1G 1A7
Centre Medical Acadie
Montreal, Quebec, H4N 2W2
Commonwealth Medical Clinic
Mount Pearl, Newfoundland and Labrador, A1N 1W7
CHU de Quebec-Universite Laval
Québec, Quebec, G1J 1Z4
Institut universitaire de cardiologie
Québec, G1V 4G5
Ctr Méd. et pro d l'Ost d port
Saint-Marc-des-Carrieres, Quebec, G0A 4B0
Ocean West Research Clinic
Surrey, British Columbia, V3Z 2N6
Dr Anil K Gupta Med Prof Corp
Toronto, Ontario, M9V 4B4
Manna Research Inc._Toronto
Toronto, Ontario, M9W 4L6
Master Centre for Canada
Toronto, M5V 3L9
Russia10 sites
PIH "Clin Hosp "RZD-Medicina" former Kazan OJSC Rus Railways
Kazan', 420061
LLC Medical center "Maksimum Zdorovia"
Kemerovo, 650066
FSBI 'I.I. Dedov National Medical Research Center of Endocrinology' of the MH of Russia
Moscow, 117292
Setchenov First Moscow State Medical University
Moscow, 119435
Federal Bureau for Medical and Social Expertise
Moscow, 127486
Consultative & Diagnostic Center with a Outpatient Hospital
Saint Petersburg, 197110
SIH "Saratov Regional Clinical Hospital for War Veterans"
Saratov, 410002
Siberian State Medical University
Tomsk, 634050
Voronezh Regional Clinical Consultive-diagnostic Centre
Voronezh, 394018
SBCI HC Yaroslavl region "Central City Hospital"
Yaroslavl, 150047
France9 sites
Centre Hospitalier de Clermont-Ferrand-Hopital Gabriel Montpied
Clermont-Ferrand, 63000
Groupe Sos Sante-Hopital Le Creusot-Hotel Dieu-2
Le Creusot, 71200
Aphp-Hopital La Pitie Salpetriere-3
Paris, 75651
CHU Pitié-Salpétrière
Paris, 75651
Ap-Hp-Hopital Europeen Georges Pompidou
Paris, 75908
Hôpital Européen Georges Pompidou
Paris, 75908
Hospices Civils de Lyon-Hopital Lyon Sud-1
Pierre-Bénite, 69310
Centre Hospitalier Universitaire de Toulouse-Hopital Rangueil-2
Toulouse, 31054
Centre de Recherche Clinique Portes Du Sud
Vénissieux, 69200
South Africa6 sites
Dr Wilhase's rooms
Boksburg, Gauteng, 1466
Dr J Reddy
Durban, KwaZulu-Natal, 4450
Lenmed Shifa Private Hospital
Durban, KwaZulu-Natal, 4901
Chris Hani Baragwanath Hospital
Johannesburg, Gauteng, 2013
Phoenix Pharma
Port Elizabeth, Eastern Cape, 6001
Botho ke Bontle Health Services
Pretoria, Gauteng, 0184
Colombia4 sites
Centro de investigación médico asistencial S.A.S
Barranquilla, 80020
BLUECARE SALUD S.A.S. Sede Centro Médico Integral
Bogotá, 110221
CentrodeInvestigaciónenReumatologíayEspecialidadesMédicas
Bogotá, 110221
Preventive Care S.A.S
Chía, 250001
Saudi Arabia4 sites
King Abdulaziz Hospital-Al Ahsa-National Guard
Al Ahsa, 36428
King Khaled University Hospital,King Saud Univ. Med. City
Riyadh, 12372
King Faisal Specialist Hospital & Research Centre, Riyadh
Riyadh, 12713
King Fahad Medical City
Riyadh, 21451
Sweden4 sites
Forskningsmottagning Internmedicin (tidigare KFE)
Malmö, 205 02
Medicinkliniken Överviktsenheten USÖ
Örebro, 701 85
S:t Göran Sjukhus
Stockholm, 112 81
Department of Metabolism and Endocrinology
Stockholm, 141 86
Norway3 sites
Akershus Universitetssykehus
Nordbyhagen, 1474
Oslo us HF, Aker sykehus
Oslo, 0586
Senter for sykelig overvekt i Helse Sør-Øst
Tønsberg, 3117
Spain3 sites
Complejo Hospitalario Universitario A Coruña
A Coruña, 15006
Hospital Clinico San Carlos
Madrid, 28040
Clínica Nuevas Tecnologías en Diabetes y Endocrinología
Seville, 41003
Denmark2 sites
Klinik for Led og bindevævssygdomme
Aarhus N, 8200
Frederiksberg Hospital - Parker Institutet (Artrose)
Frederiksberg, 2000
About this study
Official title: Effect of Subcutaneous Semaglutide 2.4 mg Once-weekly Compared to Placebo in Subjects With Obesity and Knee Osteoarthritis
This study will look at participants body weight from the start to the end of the study. It will also look at how much pain participants have in participants knee from the start to the end of the study and how this affects participants daily life. This is to compare the effect on body weight and pain in the knee in people taking semaglutide with people taking "dummy" medicine. Participants will either get semaglutide or "dummy" medicine. Which treatment participants get is decided by chance.
Participants will need to take 1 injection once a week. The study medicine is injected with a thin needle in a skin fold in the stomach, thigh or upper arm. During the study, participants will have talks with study staff about how to eat healthy food and how to be more physically active. The study will last for about 1 ½ years. Participants will have 14 clinic visits with the study staff. At the first clinic visit participants will have a blood sample taken. Participants will have an X-ray of participants knee taken at the first visit. If participants have had an X-ray recently, this may not be needed.
At 6 of the clinic visits participants cannot take pain medications for 3 days before the visit. Participants cannot take part if participants have had a joint replacement surgery in participants knee. Participants cannot take part if participants have or have had diabetes. Women: Women cannot take part if pregnant, breast-feeding or plan to become pregnant during the study period.
- Conditions
- Obesity
- Being tested
- semaglutide 2.4 mg, semaglutide 2.4 mg (placebo)
- Medical subject headings
- Obesity
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
semaglutide 2.4 mgDrug
semaglutide subcutaneous (s.c.) 2.4 mg once-weekly or semaglutide placebo once-weekly as adjunct to a reduced-calorie diet and increased physical activity
semaglutide 2.4 mg (placebo)Drug
semaglutide subcutanous (s.c.) 2.4 mg once-weekly or semaglutide placebo once-weekly as adjunct to a reduced-calorie diet and increased physical activity
| Study group | Role | What they receive |
|---|---|---|
| semaglutide 2.4 mg | Experimental | Participants will receive semaglutide subcutaneous (s.c) 2.4 mg once-weekly as adjunct to a reduced-calorie diet and increased physical activity Receives: Drug: semaglutide 2.4 mg |
| semaglutide 2.4 mg (placebo) | Placebo comparator | Participants will receive semaglutide subcutaneous (s.c) placebo once-weekly as adjunct to a reduced-calorie diet and increased physical activity Receives: Drug: semaglutide 2.4 mg (placebo) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Percentage Change in Body Weight
Percentage change in body weight from baseline (week 0) to end of treatment (week 68) is presented. The outcome measure was evaluated based on the data from in-trial period. In-trial period was defined as the uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: Baseline (week 0), end of treatment (week 68)
Change in Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Score
WOMAC is a disease-specific patient-reported outcome measure designed to assess changes in symptoms and lower extremity functioning associated with treatment in patients with osteoarthritis of the hip and/or knee. WOMAC is a 24 item questionnaire which assesses clinically important, participant-relevant symptoms in area of pain, stiffness, and physical function in participants with osteoarthritis (OA). It consists of 3 subscales: pain, stiffness and physical function. The WOMAC raw pain score is derived as the sum of the 5 item scores in the pain domain. It will be normalised and expressed on a 0-100 scale. This is done by dividing raw score by the highest possible value of the raw score for the pain domain (i.e. 50) and multiplying by 100. Higher scores indicate worse outcome. The outcome measure was evaluated based on the data from in-trial period. In-trial period was defined as the uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: Baseline (week 0), end of treatment (week 68)
Secondary outcomes (23)
Percentage of Participants Achieving Body Weight Reduction Greater Than or Equal to (≥) 5 Percent (%) (Yes/No)
Percentage of participants who achieved ≥ 5% body weight reduction (yes/no) from baseline (week 0) to end of treatment (week 68) is presented. In the reported data, 'Yes' infers percentage of participants who have achieved ≥5% weight reduction whereas 'No' infers percentage of participants who have not achieved ≥5% weight reduction. The outcome measure was evaluated based on the data from in-trial period. In-trial period was defined as the uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: From baseline (week 0) to end of treatment (week 68)
Percentage of Participants Achieving Body Weight Reduction ≥ 10% (Yes/No)
Percentage of participants who achieved ≥10% body weight reduction (yes/no) from baseline (week 0) to end of treatment (week 68) is presented. In the reported data, 'Yes' infers percentage of participants who have achieved ≥10% weight reduction whereas 'No' infers percentage of participants who have not achieved ≥10% weight reduction. The outcome measure was evaluated based on the data from in-trial period. In-trial period was defined as the uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: From baseline (week 0) to end of treatment (week 68)
Change in WOMAC Physical Function Score
Change in WOMAC physical function score is presented. WOMAC is a 24 item questionnaire which assesses clinically important, participant-relevant symptoms in area of pain, stiffness, and physical function in participants with osteoarthritis (OA). It consists of 3 subscales: pain, stiffness and physical function. WOMAC physical function is 17-item questionnaire used to assess degree of difficulty experienced due to OA in knee. It is calculated as the sum of the 17 item scores in the physical function domain. It is normalized and expressed on a 0-100 scale. This is done by dividing raw score by the highest possible value of the raw score for the physical function domain (i.e. 170) and multiplying by 100. Higher scores indicate worse outcome. The outcome measure was evaluated based on the data from in-trial period. In-trial period was defined as the uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: Baseline (week 0), end of treatment (week 68)
Change in Short Form 36 (SF-36) Physical Functioning Score
SF-36 is self-administered questionnaire that measures each of following 8 health domains: physical functioning, role limitations due to physical problems (role-physical), social functioning, bodily pain, mental health, role limitations due to emotional problems (role-emotional), vitality, and general health perception. There are also 2 component scores derived from the 8 subscale scores: physical component summary (including physical functioning, role-physical, bodily pain and general health) and mental component summary (including vitality, social functioning, role-emotional and mental health). Each SF-36 domain and component summary score ranges from 0 to 100, higher scores reflect better participant health status. A positive change score indicates an improvement since baseline. The outcome measure was evaluated based on data from in-trial period. In-trial period was defined as uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: Baseline (week 0), end of treatment (week 68)
Change in Waist Circumference
Change in waist circumference from baseline (week 0) to end of the treatment (visit 68) is presented. The outcome measure was evaluated based on the data from in-trial period. In-trial period was defined as the uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: Baseline (week 0), end of treatment (week 68)
Change in WOMAC Stiffness Score
WOMAC is a disease-specific patient-reported outcome measure designed to assess changes in symptoms and lower extremity functioning associated with treatment in patients with osteoarthritis of the hip and/or knee. WOMAC is a 24 item questionnaire which assesses clinically important, participant-relevant symptoms in area of pain, stiffness, and physical function in participants with OA. It consists of 3 subscales: pain, stiffness and physical function. The WOMAC raw stiffness score is derived as the sum of the 2 item scores in the stiffness domain. It will be normalized and expressed on a 0-100 scale. This is done by dividing raw score by the highest possible value of the raw score for the stiffness domain (i.e. 20) and multiplying by 100. Higher scores indicate worse outcome. The outcome measure was evaluated based on the data from in-trial period. In-trial period was defined as the uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: Baseline (week 0), end of treatment (week 68)
Change in WOMAC Total Score
WOMAC is a disease-specific patient-reported outcome measure designed to assess changes in symptoms and lower extremity functioning associated with treatment in patients with osteoarthritis of the hip and/or knee. WOMAC is a 24 item questionnaire which assesses clinically important, participant-relevant symptoms in area of pain, stiffness, and physical function in participants with OA. The WOMAC raw total score is derived as the sum of the 24 item scores respectively on pain, stiffness and physical function domain. It will be normalized and expressed on a 0-100 scale. This is done by dividing raw score by the highest possible value of the raw score for the total domain (i.e. 240) and multiplying by 100. Higher scores indicate worse outcome. The outcome measure was evaluated based on the data from in-trial period. In-trial period was defined as the uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: Baseline (week 0), end of treatment (week 68)
Change in SF-36 Bodily Pain Score
Change in SF-36 Bodily Pain Score from baseline (week 0) to end of treatment (week 68) is presented. SF-36 is self-administered questionnaire that measures each of following 8 health domains: physical functioning, role limitations due to physical problems (role-physical), social functioning, bodily pain, mental health, role limitations due to emotional problems (role-emotional), vitality, and general health perception. There are also 2 component scores derived from the 8 subscale scores: physical component summary and mental component summary. Each SF-36 domain and component summary score ranges from 0 to 100, higher scores reflect better participant health status. A positive change score indicates an improvement since baseline. The outcome measure was evaluated based on data from in-trial period. In-trial period was defined as uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: Baseline (week 0), end of treatment (week 68)
Change in SF-36 Physical Component Summary
Change in SF-36 physical component summary is presented. It is self-administered questionnaire that measures each of following 8 health domains: physical functioning, role limitations due to physical problems (role-physical), social functioning, bodily pain, mental health, role limitations due to emotional problems (role-emotional), vitality, and general health perception. There are also 2 component scores derived from the 8 subscale scores: physical component summary and mental component summary. Physical component summary contains physical functioning, role-physical, bodily pain and general health. Each SF-36 domain and component summary score ranges from 0 to 100, higher scores reflect better participant health status. A positive change score indicates an improvement since baseline. The outcome measure was evaluated based on data from in-trial period. In-trial period was defined as uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: Baseline (week 0), end of treatment (week 68)
Change in SF-36 Mental Component Summary
Change in SF-36 mental component summary is presented. SF-36 is self-administered questionnaire that measures each of following 8 health domains: physical functioning, role limitations due to physical problems (role-physical), social functioning, bodily pain, mental health, role limitations due to emotional problems (role-emotional), vitality, and general health perception. There are also 2 component scores derived from the 8 subscale scores: mental component summary and physical component summary. Mental component summary contain vitality, social functioning, role-emotional and mental health. Each SF-36 domain and component summary score ranges from 0 to 100, higher scores reflect better participant health status. A positive change score indicates an improvement since baseline. The outcome measure was evaluated based on data from in-trial period. In-trial period was defined as uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: Baseline (week 0), end of treatment (week 68)
Percentage of Participants Using Allowed Rescue Analgesics During Wash Out (Yes/No)
Percentage of participants using allowed rescue analgesics during wash out at end of treatment (week 68) is presented. In the reported data, 'Yes' infers percentage of participants who have used allowed rescue analgesics during wash out whereas 'No' infers percentage of participants who have not used allowed rescue analgesics during wash out. Use of allowed rescue analgesics is evaluated based on use of acetaminophen reported in the pain medication diary from one up to 3 days prior to WOMAC assessment. The outcome measure was evaluated based on the data from in-trial period. In-trial period was defined as the uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: At end of treatment (week 68)
Amount of Allowed Rescue Analgesics Used During Wash Out
Amount of allowed rescue analgesics used during wash out at end of treatment (week 68) is presented. Allowed rescue analgesic during washout is defined as acetaminophen taken 24-72 hour before the visit. The outcome measure is approximated by a total dose of acetaminophen reported in the pain medication diary from one and up to 3 days prior to WOMAC assessment. The outcome measure was evaluated based on the data from in-trial period. In-trial period was defined as the uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: At end of treatment (week 68)
Percentage of Participants With Use of Pain Medication
Percentage of participants with use of pain medication from baseline (week 0) to end of treatment (week 68) is presented. The outcome measure was evaluated based on the data from in-trial period. In-trial period was defined as the uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: From baseline (week 0) to end of treatment (week 68)
Change in Pain Intensity (Numerical Rating Scale [NRS])
Pain intensity was assessed on an 11-point NRS over the past 24 hours (before each specified visit), where a score of 0 indicated "no pain" and a score of 10 indicated "worst possible pain", where higher the score, greater the pain intensity. Response at visit was derived from the pain diary data as an average score over 4 days interval leading up to visit-related washout period for pain medication. The outcome measure was evaluated based on the data from in-trial period. In-trial period was defined as the uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: Baseline (week 0), end of treatment (week 68)
Percentage of Participants Achieving Body Weight Reduction ≥ 15% (Yes/No)
Percentage of participants who achieved ≥15% body weight reduction (yes/no) from baseline (week 0) to end of treatment (week 68) is presented. In the reported data, 'Yes' infers percentage of participants who have achieved ≥15% weight reduction whereas 'No' infers percentage of participants who have not achieved ≥15% weight reduction. The outcome measure was evaluated based on the data from in-trial period. In-trial period was defined as the uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: From baseline (week 0) to end of treatment (week 68)
Percentage of Participants Achieving Body Weight Reduction ≥ 20% (Yes/No)
Percentage of participants who achieved ≥20% body weight reduction (yes/no) from baseline (week 0) to end of treatment (week 68) is presented. In the reported data, 'Yes' infers percentage of participants who have achieved ≥20% weight reduction whereas 'No' infers percentage of participants who have not achieved ≥20% weight reduction. The outcome measure was evaluated based on the data from in-trial period. In-trial period was defined as the uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: From baseline (week 0) to end of treatment (week 68)
Percentage of Participants Achieving WOMAC Pain Reduction ≥ 30% (Yes/No)
Percentage of participants who achieved ≥30% WOMAC pain reduction (yes/no) is presented. In the reported data, 'Yes' infers percentage of participants who have achieved ≥30% WOMAC pain reduction whereas 'No' infers percentage of participants who have not achieved ≥30% WOMAC pain reduction. WOMAC raw pain score is derived as sum of 5 item scores in pain domain. It will be normalized and expressed on 0-100 scale. This is done by dividing raw score by highest possible value of raw score for pain domain (i.e. 50) and multiplying by 100. Higher scores indicate worse outcome. The outcome measure was evaluated based on the data from in-trial period. In-trial period was defined as the uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: From baseline (week 0) to end of treatment (week 68)
Percentage of Participants Achieving WOMAC Pain Reduction ≥ 50% (Yes/No)
Percentage of participants who achieved ≥50% WOMAC pain reduction (yes/no) from baseline (week 0) to end of treatment (week 68) is presented. In the reported data, 'Yes' infers percentage of participants who have achieved ≥50% WOMAC pain reduction whereas 'No' infers percentage of participants who have not achieved ≥50% WOMAC pain reduction. WOMAC raw pain score is derived as sum of 5 item scores in pain domain. It will be normalized and expressed on 0-100 scale. This is done by dividing raw score by highest possible value of raw score for pain domain (i.e. 50) and multiplying by 100. Higher scores indicate worse outcome. The outcome measure was evaluated based on the data from in-trial period. In-trial period was defined as the uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: From baseline (week 0) to end of treatment (week 68)
Percentage of Participants Achieving Threshold for Clinically Meaningful Within-participant Change in WOMAC Pain Score (Yes/No)
Percentage of participants who achieved threshold for clinically meaningful within-participant change in WOMAC pain score from baseline (week 0) to end of treatment (week 68) is presented. The threshold refers to the decrease of at least 37.3 in the WOMAC pain score and it is derived based on 1-category improvement on patient global impression of status (PGI-S) scale. In reported data, 'Yes' infers percentage of participants who have achieved threshold whereas 'No' infers percentage of participants who have not achieved threshold. WOMAC raw pain score is derived as sum of 5 item scores in pain domain. It will be normalized and expressed on 0-100 scale. This is done by dividing raw score by highest possible value of raw score for pain domain (i.e. 50) and multiplying by 100. Higher scores=worse outcome. Outcome measure was evaluated based on data from in-trial period and it was defined as uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: From baseline (week 0) to end of treatment (week 68)
Percentage of Participants Achieving Threshold for Clinically Meaningful Within-participant Change in WOMAC Physical Function Score (Yes/No)
Percentage of participants who achieved threshold for clinically meaningful within-participant change in WOMAC physical function score from baseline (week 0) to end of treatment (week 68) is presented. The threshold refers to the decrease of at least 41.2 in the WOMAC physical function score and it is derived based on 1-category improvement on PGI-S scale. In reported data, 'Yes' infers percentage of participants who have achieved threshold whereas 'No' infers percentage of participants who have not achieved threshold. WOMAC raw pain score is derived as sum of 5 item scores in pain domain. It will be normalized and expressed on 0-100 scale. This is done by dividing raw score by highest possible value of raw score for pain domain (i.e. 50) and multiplying by 100. Higher scores indicate worse outcome. Outcome measure was evaluated based on data from in-trial period and it was defined as uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: From baseline (week 0) to end of treatment (week 68)
Percentage of Participants Achieving Threshold for Clinically Meaningful Within-participant Change in SF-36 Physical Functioning Score (Yes/No)
Percentage of participants who achieved threshold for clinically meaningful within-participant change in SF-36 physical function score is presented. Threshold refers to increase of at least 11.4 in SF-36 physical functioning score \& it is derived based on 1-category improvement on PGI-S scale. 'Yes' infers percentage of participants who achieved threshold; 'No' infers percentage of participants who have not achieved threshold. SF-36: self-administered questionnaire that measures each of following 8 health domains: physical functioning, role limitations due to physical problems, social functioning, bodily pain, mental health, role limitations due to emotional problems, vitality, \& general health perception. Each SF-36 domain and component summary score ranges from 0-100, higher scores mean better participant health status. Outcome measure was evaluated based on data from in-trial period: uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: From baseline (week 0) to end of treatment (week 68)
Percentage of Participants Achieving Pain Intensity (Numerical Rating Scale [NRS]) Reduction ≥ 30% (Yes/No)
Percentage of participants who achieved ≥30% pain intensity reduction (yes/no) from baseline (week 0) to end of treatment (week 68) is presented. In the reported data, 'Yes' infers percentage of participants who have achieved ≥30% pain intensity reduction whereas 'No' infers percentage of participants who have not achieved ≥30% pain intensity reduction. Response at visit was derived from the pain diary data as an average score over 4 days interval leading up to visit-related washout period for pain medication. Pain intensity was assessed on an 11-point NRS over the past 24 hours (before each specified visit), where a score of 0 indicated "no pain" and a score of 10 indicated "worst possible pain", where higher the score, greater the pain intensity. The outcome measure was evaluated based on the data from in-trial period. In-trial period was defined as the uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: From baseline (week 0) to end of treatment (week 68)
Percentage of Participants Achieving Pain Intensity (Numerical Rating Scale [NRS]) Reduction ≥ 50% (Yes/No)
Percentage of participants who achieved ≥50% pain intensity reduction (yes/no) from baseline (week 0) to end of treatment (week 68) is presented. In the reported data, 'Yes' infers percentage of participants who have achieved ≥50% pain intensity reduction whereas 'No' infers percentage of participants who have not achieved ≥50% pain intensity reduction. Response at visit was derived from the pain diary data as an average score over 4 days interval leading up to visit-related washout period for pain medication. Pain intensity was assessed on an 11-point NRS over the past 24 hours (before each specified visit), where a score of 0 indicated "no pain" and a score of 10 indicated "worst possible pain", where higher the score, greater the pain intensity. The outcome measure was evaluated based on the data from in-trial period. In-trial period was defined as the uninterrupted time interval from date of randomization to date of last contact with trial site.
Measured: From baseline (week 0) to end of treatment (week 68)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted1 Oct 2021
- Study start1 Oct 2021
- Primary completion24 Jul 2023
- Study completion8 Sep 2023
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (1)Papers the sponsor has linked to this study.
- 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
- Triple blind
- Who is masked
- Participant, Care provider, Investigator
- Enrolment
- 407 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
- NCT05064735
- Sponsor's protocol ID
- NN9536-4578
- Other IDs
- U1111-1246-5824, 2020-000204-11
- Status last verified
- Nov 2025
- First submitted
- 22 Sep 2021
- Last updated
- 17 Nov 2025
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: According to the Novo Nordisk disclosure commitment on novonordisk-trials.com
Publications
Bliddal H, Bays H, Czernichow S, Udden Hemmingsson J, Hjelmesaeth J, Hoffmann Morville T, Koroleva A, Skov Neergaard J, Velez Sanchez P, Wharton S, Wizert A, Kristensen LE; STEP 9 Study Group. Once-Weekly Semaglutide in Persons with Obesity and Knee Osteoarthritis. N Engl J Med. 2024 Oct 31;391(17):1573-1583. doi: 10.1056/NEJMoa2403664.
PubMed 39476339
Study at a glance
From the registry record, last updated by the sponsor on 17 Nov 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effect of Subcutaneous Semaglutide 2.4 mg Once-weekly Compared to Placebo in Subjects With Obesity and Knee Osteoarthritis
- ClinicalTrials.gov ID
- NCT05064735
- Acronym / sponsor ID
- NN9536-4578
- Conditions
- Obesity
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 407 participants (actual)
- Lead sponsor
- Novo Nordisk A/SIndustry (pharma, biotech, devices)
- Study start
- 1 Oct 2021 (actual)
- Primary completion
- 24 Jul 2023 (actual)
- Study completion
- 8 Sep 2023 (actual)
- First posted
- 1 Oct 2021 (actual)
- Results
- Posted 13 Aug 2024
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 participants body weight from the start to the end of the study. It will also look at how much pain participants have in participants knee from the start to the end of the study and how this affects participants daily life. This is to compare the effect on body weight and pain in the knee in people taking semaglutide with people taking "dummy" medicine. Participants will either get semaglutide or "dummy" medicine. Which treatment participants get is decided by chance.
Participants will need to take 1 injection once a week. The study medicine is injected with a thin needle in a skin fold in the stomach, thigh or upper arm. During the study, participants will have talks with study staff about how to eat healthy food and how to be more physically active. The study will last for about 1 ½ years. Participants will have 14 clinic visits with the study staff. At the first clinic visit participants will have a blood sample taken. Participants will have an X-ray of participants knee taken at the first visit. If participants have had an X-ray recently, this may not be needed.
At 6 of the clinic visits participants cannot take pain medications for 3 days before the visit. Participants cannot take part if participants have had a joint replacement surgery in participants knee. Participants cannot take part if participants have or have had diabetes. Women: Women cannot take part if pregnant, breast-feeding or plan to become pregnant during the study period.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, care provider, investigator)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| semaglutide 2.4 mg | Experimental | Drug: semaglutide 2.4 mgParticipants will receive semaglutide subcutaneous (s.c) 2.4 mg once-weekly as adjunct to a reduced-calorie diet and increased physical activity |
| semaglutide 2.4 mg (placebo) | Placebo comparator | Drug: semaglutide 2.4 mg (placebo)Participants will receive semaglutide subcutaneous (s.c) placebo once-weekly as adjunct to a reduced-calorie diet and increased physical activity |
Who may qualify
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (4 listed)
- Male or female, age above or equal to 18 years at the time of signing informed consent
- Body Mass Index (BMI) equal to or greater than 30.0 kg/m^2
- Clinical diagnosis of knee OA (American College of Rheumatology (ACR) criteria) with moderate radiographic changes (Kellgren-Lawrence (KL) grades 2 or 3 as per central reading) in target knee. Target knee joint is defined as most symptomatic knee at screening. If pain in knees are equal target knee joint will be in the most dominant leg.
- Pain due to knee OA
Key exclusion criteria (3 listed)
- Joint replacement in target knee
- Arthroscopy or injections into target knee within last 3 months prior to enrolment
- Any other joint disease in the target knee
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 |
|---|---|---|
| semaglutide 2.4 mgsemaglutide subcutaneous (s.c.) 2.4 mg once-weekly or semaglutide placebo once-weekly as adjunct to a reduced-calorie diet and increased physical activity | Drug | semaglutide 2.4 mg |
| semaglutide 2.4 mg (placebo)semaglutide subcutanous (s.c.) 2.4 mg once-weekly or semaglutide placebo once-weekly as adjunct to a reduced-calorie diet and increased physical activity | Drug | semaglutide 2.4 mg (placebo) |
Primary outcome
Percentage Change in Body Weight
Time frame: Baseline (week 0), end of treatment (week 68)
Percentage change in body weight from baseline (week 0) to end of treatment (week 68) is presented. The outcome measure was evaluated based on the data from in-trial period. In-trial period was defined as the uninterrupted time interval from date of randomization to date of last contact with trial site.
Change in Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Score
Time frame: Baseline (week 0), end of treatment (week 68)
WOMAC is a disease-specific patient-reported outcome measure designed to assess changes in symptoms and lower extremity functioning associated with treatment in patients with osteoarthritis of the hip and/or knee. WOMAC is a 24 item questionnaire which assesses clinically important, participant-relevant symptoms in area of pain, stiffness, and physical function in participants with osteoarthritis (OA). It consists of 3 subscales: pain, stiffness and physical function. The WOMAC raw pain score is derived as the sum of the 5 item scores in the pain domain. It will be normalised and expressed on a 0-100 scale. This is done by dividing raw score by the highest possible value of the raw score for the pain domain (i.e. 50) and multiplying by 100. Higher scores indicate worse outcome. The outcome measure was evaluated based on the data from in-trial period. In-trial period was defined as the uninterrupted time interval from date of randomization to date of last contact with trial site.
23 secondary outcomes
Percentage of Participants Achieving Body Weight Reduction Greater Than or Equal to (≥) 5 Percent (%) (Yes/No)
Time frame: From baseline (week 0) to end of treatment (week 68)
Percentage of Participants Achieving Body Weight Reduction ≥ 10% (Yes/No)
Time frame: From baseline (week 0) to end of treatment (week 68)
Change in WOMAC Physical Function Score
Time frame: Baseline (week 0), end of treatment (week 68)
Change in Short Form 36 (SF-36) Physical Functioning Score
Time frame: Baseline (week 0), end of treatment (week 68)
Change in Waist Circumference
Time frame: Baseline (week 0), end of treatment (week 68)
Change in WOMAC Stiffness Score
Time frame: Baseline (week 0), end of treatment (week 68)
Change in WOMAC Total Score
Time frame: Baseline (week 0), end of treatment (week 68)
Change in SF-36 Bodily Pain Score
Time frame: Baseline (week 0), end of treatment (week 68)
Change in SF-36 Physical Component Summary
Time frame: Baseline (week 0), end of treatment (week 68)
Change in SF-36 Mental Component Summary
Time frame: Baseline (week 0), end of treatment (week 68)
Percentage of Participants Using Allowed Rescue Analgesics During Wash Out (Yes/No)
Time frame: At end of treatment (week 68)
Amount of Allowed Rescue Analgesics Used During Wash Out
Time frame: At end of treatment (week 68)
Percentage of Participants With Use of Pain Medication
Time frame: From baseline (week 0) to end of treatment (week 68)
Change in Pain Intensity (Numerical Rating Scale [NRS])
Time frame: Baseline (week 0), end of treatment (week 68)
Percentage of Participants Achieving Body Weight Reduction ≥ 15% (Yes/No)
Time frame: From baseline (week 0) to end of treatment (week 68)
Percentage of Participants Achieving Body Weight Reduction ≥ 20% (Yes/No)
Time frame: From baseline (week 0) to end of treatment (week 68)
Percentage of Participants Achieving WOMAC Pain Reduction ≥ 30% (Yes/No)
Time frame: From baseline (week 0) to end of treatment (week 68)
Percentage of Participants Achieving WOMAC Pain Reduction ≥ 50% (Yes/No)
Time frame: From baseline (week 0) to end of treatment (week 68)
Percentage of Participants Achieving Threshold for Clinically Meaningful Within-participant Change in WOMAC Pain Score (Yes/No)
Time frame: From baseline (week 0) to end of treatment (week 68)
Percentage of Participants Achieving Threshold for Clinically Meaningful Within-participant Change in WOMAC Physical Function Score (Yes/No)
Time frame: From baseline (week 0) to end of treatment (week 68)
Percentage of Participants Achieving Threshold for Clinically Meaningful Within-participant Change in SF-36 Physical Functioning Score (Yes/No)
Time frame: From baseline (week 0) to end of treatment (week 68)
Percentage of Participants Achieving Pain Intensity (Numerical Rating Scale [NRS]) Reduction ≥ 30% (Yes/No)
Time frame: From baseline (week 0) to end of treatment (week 68)
Percentage of Participants Achieving Pain Intensity (Numerical Rating Scale [NRS]) Reduction ≥ 50% (Yes/No)
Time frame: From baseline (week 0) to end of treatment (week 68)
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 17 Nov 2025.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Results publication: PubMed 39476339Bliddal H, Bays H, Czernichow S, Udden Hemmingsson J, Hjelmesaeth J, Hoffmann Morville T, Koroleva A, Skov Neergaard J, Velez Sanchez P, Wharton S, Wizert A, Kristensen LE; STEP 9 Study Group. Once-Weekly Semaglutide in Persons with Obesity and Knee Osteoarthritis. N Engl J Med. 2024 Oct 31;391(17):1573-1583. doi: 10.1056/NEJMoa2403664.
- 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
122 sites in 11 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing semaglutide 2.4 mg in people with Obesity, run by Novo Nordisk A/S at 122 sites in 11 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 4 inclusion and 3 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: finished, as of the sponsor's last update on 17 Nov 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 122 sites in United States, Canada, Russia, France, South Africa and 6 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. Some participants in this study may receive a placebo. 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?
Yes. Results are posted in the registry (first posted 13 Aug 2024). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
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?
Percentage Change in Body Weight (time frame: Baseline (week 0), end of treatment (week 68)). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT05064735, which also lists 1 linked publication.
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 17 Nov 2025.