About this trial
Low back pain is the leading cause of disability in the United States, and obesity is a major risk factor for its development. GLP-1 receptor agonists such as Semaglutide have emerged as effective weight loss agents that may also reduce chronic pain through weight reduction and other mechanisms. This randomized, double-blind, placebo-controlled trial will enroll 250 adults with chronic low back pain and obesity, randomized 1:1 to weekly Semaglutide 2.4 mg or placebo for 52 weeks. The primary outcome is change in low back pain severity, with secondary outcomes including pain-related disability and quality of life.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Ability to provide informed consent before any trial-related activities
Age: 18-85 years
Chronic low back pain, defined as an average low back pain severity of at least 4/10 present on most days for 3 months or longer.
BMI: 30-49 kg/m2
Disqualifiers
Known or suspected allergy to trial medication(s), excipients, or related products
Contraindications to study medication(s), worded specifically as stated in the product's Prescribing Information
Previous randomization in this trial
Pregnant, breastfeeding, or the intention of becoming pregnant or not using adequate contraceptive measures
Trial design
Parallel
Treatments tested in this trial
Semaglutide (administered by PDS290 pen-injector)
DrugSemaglutide 3.0 mg/mL solution for subcutaneous injection, administered using a 3 mL PDS290 pen-injector. Administered subcutaneously once weekly on the same day each week, without regard to meals. Dose escalation: 0.24 mg weekly for 28 days, then increased to 0.5 mg, 1.0 mg, 1.7 mg, and 2.4 mg every 4 weeks to reach the maintenance dose of 2.4 mg. The pen uses a drum scale of 1-80 (in increments of 1); corresponding dose counter values are: 0.24 mg = 8, 0.5 mg = 17, 1.0 mg = 34, 1.7 mg = 57, 2.4 mg = 80. Treatment duration is 52 weeks.
Placebo (administered by PDS290 pen-injector)
DrugMatching placebo solution for subcutaneous injection, administered using a 3 mL PDS290 pen-injector. Administered subcutaneously once weekly on the same day each week, without regard to meals, following the same escalating dose counter schedule as the active comparator (counter values: 8, 17, 34, 57, 80 every 4 weeks). Treatment duration is 52 weeks.
Treatment groups
Trial outcomes
Primary outcomes
BPI-SF Pain Severity Scale
The primary endpoint will be change in low back pain severity, measured using the 0-10 BPI-SF Pain Severity Scale. This outcome will be compared in the treatment group versus placebo.
Secondary outcomes
BPI-SF Pain Interference
Oswestry Disability Index (ODI)
SF-36 Physical Component Summary (PCS) and Mental Component Summary (MCS)
PROMIS Depression
Sponsors and contacts
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Washington University School of Medicine
Lead sponsor
Novo Nordisk A/S
Collaborator
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