- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT06191848
Subcutaneous Tirzepatide Once-weekly in Patients With Obesity and Knee Osteoarthritis (STOP KNEE-OA) (STOP KNEE-OA)
Effect of Subcutaneous Tirzepatide Once-weekly in Patients With Obesity and Knee Osteoarthritis (STOP KNEE-OA): A Randomized, Double-Blind, Placebo-Controlled Trial
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Estimated)
Phase
- Phase 4
Contacts and Locations
Study Contact
- Name: Angela Cochrane
- Phone Number: 2364 +61392312364
- Email: angela.cochrane@svha.org.au
Study Contact Backup
- Name: Michelle M Dowsey
- Phone Number: 3955 +61392313955
- Email: mmdowsey@unimelb.edu.au
Study Locations
-
-
Victoria
-
Fitzroy, Victoria, Australia, 3065
- St Vincent's Hospital Melbourne
-
Contact:
- Angela Cochrane
- Phone Number: 2364 +61392312364
- Email: angela.cochrane@svha.org.au
-
Contact:
- Michelle M Dowsey, PhD
- Phone Number: 3955 +61392313955
- Email: mmdowsey@unimelb.edu.au
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Adult
- Older Adult
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Have a body mass index of ≥ 30 kg/m2.
- Report one or more previous unsuccessful attempt to lose body weight via lifestyle modification.
- Have been deemed eligible to enter the waiting list for primary knee replacement for the treatment of osteoarthritis in the target joint by an orthopaedic surgeon at one of the participating study sites.
- Have moderate-to-severe knee osteoarthritis in the target joint.
- Be willing to and capable of learning how to self-inject the study drug and follow study procedures for the duration of the trial.
- Provide informed consent to study participation in line with the requirements of the human research ethics committee of the study site.
Female participants must either:
• Not be of reproductive potential, defined as:
- Infertile due to surgical sterilization or congenital anomaly, OR
Post-menopausal defined as:
- A woman over the age of 40 years with spontaneous cessation of menses for at least 12 consecutive months (in the absence of medications known to induce amenorrhea), with a follicle-stimulating hormone ≥40mIU/mL, and a negative pregnancy test prior to study entry, OR
- A woman over the age of 55 years with cessation of menses for at least 12 consecutive months (in the absence of medications known to induce amenorrhea), OR
- A woman over the age of 55 years that has commenced hormone replacement therapy after a documented diagnosis of menopause.
OR
• Be of reproductive potential, and:
- Test negative for pregnancy on the initial screening visit via a serum pregnancy test, AND
- Use at least two effective forms of contraception, if sexually active, for the duration of the trial and until one month after the last injection of the study drug AND
- Not be breastfeeding.
Exclusion Criteria:
- Have been deemed eligible to enter the waiting list for knee replacement in the contralateral knee by an orthopaedic surgeon at one of the participating study sites.
- Have used any prescription medications intended to promote weight loss (e.g., tirzepatide, liraglutide, semaglutide) in the three months prior to screening.
- Have previously undergone any surgical or endoscopic procedure intended to promote weight loss.
- Have been diagnosed with type 1 diabetes mellitus (T1DM) or T2DM
- Have laboratory evidence indicative of diabetes mellitus during screening.
- Have personal or family history of medullary thyroid carcinoma (MTC) or Multiple Endocrine Neoplasia syndrome type 2 (MEN 2)
- Have an active malignancy (excluding basal or squamous cell skin cancer).
- Have had a transplanted organ or awaiting an organ transplant
- Have evidence of a significant, active autoimmune abnormality (e.g., lupus or rheumatoid arthritis)
Have any other medical conditions, abnormal laboratory tests or concomitant medications that make them unsuitable for participation:
- Have a clinically significant gastric emptying abnormality.
- Have had a history of acute or chronic pancreatitis.
- Have obesity induced by other endocrinologic disorders
- Have an unstable psychiatric disorder
- Have uncontrolled hypertension (systolic blood pressure above or equal to 160 mmHg and/or diastolic blood pressure above or equal to 100 mmHg)
- Have had within the past 6 months prior to randomisation any of the following: acute myocardial infarction, cerebrovascular accident, unstable angina, or hospitalisation due to congestive cardiac failure (are also exclusion criteria for elective knee replacement)
- Have renal impairment as measured by a serum Creatinine of ≥0.3 mg/dL (≥26.5 μmol/L) at screening visit
- Have thyroid-stimulating hormone outside of the range of 0.4 to 6.0 mIU/L at screening visit
- Have acute or chronic hepatitis or abnormal liver function tests as measured by either alanine aminotransferase or alkaline phosphatase >200 IU.
- Have a calcitonin level at Visit 1 of: ≥20 ng/L with eGFR ≥60 mL/min/1.73 m2, or ≥35 ng/L with eGFR <60 mL/min/1.73 m2.
- Have any other known contraindication to any glucagon-like peptide-1 receptor agonists.
- Are study site personnel, or immediate family of a member of the study site.
- Have been enrolled in any other study of an investigational product within the past ninety days or are currently enrolled in such a study
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Tirzepatide
Drug: Tirzepatide is a glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1receptor (GLP1R) agonist Dose: Tirzepatide will be initiated at 2.5mg once weekly, with the dose increasing by a further 2.5mg every four weeks until the target weekly dose of 15mg is achieved (or participants reach a lower maximum tolerated dose of 5mg or 10mg). Duration: 72-weeks Mode: subcutaneous |
Participants will receive tirzepatide subcutaneously
|
Placebo Comparator: Placebo
Drug: Placebo Dose: once-weekly Duration: 72 weeks Mode: subcutaneous
|
Participants will receive placebo subcutaneously
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Percentage of patients who undergo knee replacement in the target joint
Time Frame: within 72 weeks of randomization
|
Percentage of patients who undergo knee replacement in the target joint
|
within 72 weeks of randomization
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Percentage change in bodyweight
Time Frame: Baseline, Week 72
|
Mean percentage change in body weight at 72 weeks after randomization
|
Baseline, Week 72
|
≥5% body weight reduction
Time Frame: Baseline, Week 72
|
Percentage of participants with ≥5% body weight reduction at 72 weeks after randomization
|
Baseline, Week 72
|
≥10% body weight reduction
Time Frame: Baseline, Week 72
|
Percentage of participants with ≥10% body weight reduction at 72 weeks after randomization
|
Baseline, Week 72
|
≥20% body weight reduction
Time Frame: Baseline, Week 72
|
Percentage of participants with ≥20% body weight reduction at 72 weeks after randomization
|
Baseline, Week 72
|
Non-opioid prescription pain medication use
Time Frame: Baseline, between 68-72 weeks
|
Proportion of participants reporting use of non-opioid prescription analgesics between 68-72 weeks after randomization
|
Baseline, between 68-72 weeks
|
Opioid prescription pain medication use
Time Frame: Baseline, between 68-72 weeks
|
Proportion of participants reporting use of prescription opioid analgesics between 68-72 weeks after randomization
|
Baseline, between 68-72 weeks
|
Mean change in use of prescription opioid pain medication
Time Frame: Baseline, between 68-72 weeks
|
Mean change in prescription opioids dose at 72 weeks after randomization
|
Baseline, between 68-72 weeks
|
Participant willingness to undergo knee replacement surgery
Time Frame: within the 72 weeks since randomization
|
Proportion of patients who undergo knee replacement in the target joint within 72 weeks of randomization or re-enter the waiting list within 72 weeks of randomization.
|
within the 72 weeks since randomization
|
Long-term (5-year) progression to knee replacement
Time Frame: within 260 weeks of randomization
|
Percentage of patients who undergo knee replacement in the target joint within 5-years
|
within 260 weeks of randomization
|
Long-term (10-year) progression to knee replacement
Time Frame: within 520 weeks of randomization
|
Percentage of patients who undergo knee replacement in the target joint within 10-years
|
within 520 weeks of randomization
|
Osteoarthritis Pain
Time Frame: Baseline, Week 72
|
Change from Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale Score.
The WOMAC Pain subscale has 5-items, with a possible score range of 0-20, with higher scores indicating worse pain.
|
Baseline, Week 72
|
Osteoarthritis Function
Time Frame: Baseline, Week 72
|
Change from Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Function Subscale Score.
The WOMAC Function subscale has 17-items, with a possible range of 0-68, with higher scores indicating worse functional impairment.
|
Baseline, Week 72
|
Osteoarthritis Stiffness
Time Frame: Baseline, Week 72
|
Change from Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Stiffness Subscale Score.
The WOMAC Stiffness subscale has 2-items, with a possible range of 0-8, with higher score indicating worse stiffness.
|
Baseline, Week 72
|
Physical Health
Time Frame: Baseline, Week 72
|
Mean change in the 12-item Short Form (SF-12) Physical Component Summary at 72 weeks after randomization.
The SF-12 Physical Component Summary has a score range of 24.00-56.58,
with a lower score indicating poorer physical health.
|
Baseline, Week 72
|
Mental Health
Time Frame: Baseline, Week 72
|
Mean change in the 12-item Short Form Survey (SF-12) Mental Component Summary at 72 weeks after randomization.
The SF-12 Mental Component Summary has a score range of 19.06-60.76,
with a lower score indicating poorer mental health.
|
Baseline, Week 72
|
Physical Activity
Time Frame: Baseline, Week 72
|
Mean change in Physical Activity Scale for the Elderly (PASE) score at 72 weeks after randomization.
The PASE has 12-items with a total score range from 0-400 or more, with higher scores indicating greater physical activity.
|
Baseline, Week 72
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Michelle M Dowsey, University of Melbourne
Study record dates
Study Major Dates
Study Start (Estimated)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Estimated)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Overnutrition
- Nutrition Disorders
- Overweight
- Body Weight
- Joint Diseases
- Musculoskeletal Diseases
- Rheumatic Diseases
- Arthritis
- Obesity
- Osteoarthritis
- Osteoarthritis, Knee
- Hypoglycemic Agents
- Physiological Effects of Drugs
- Hormones
- Hormones, Hormone Substitutes, and Hormone Antagonists
- Incretins
- Tirzepatide
Other Study ID Numbers
- 75430
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
IPD Sharing Time Frame
IPD Sharing Access Criteria
IPD Sharing Supporting Information Type
- STUDY_PROTOCOL
- SAP
- CSR
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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