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NCT Number: NCT07731256

Semaglutide for Low Back Pain

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.

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Key information

Age range

18 year–85 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

The University of Alabama at Birmingham, Birmingham, Alabama, United States

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • 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

Exclusion criteria

  • 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
  • Low back pain related to infection, trauma, or malignancy
  • Plans to undergo new back pain interventions within 3 months.
  • Considering or have been offered surgery to treat structural disease believed to cause their low back pain, including infection, severe degeneration adjacent to a prior fusion, mobile spondylolisthesis, severe central lumbar stenosis, coronal or sagittal deformity, or other severe structural pathology diagnosed by a board-certified spine surgeon. Ambiguous cases will be adjudicated by a board-certified spine surgeon.
  • Another source of pain that is more severe than their low back pain (e.g., headache or radiculopathy)
  • History of or plans to undergo bariatric weight loss surgery
  • History of a major abdominal or stomach surgery that might affect drug absorption
  • Decrease in body weight of > 5 kg within 3 months of screening
  • History of diabetes mellitus, with HbA1c > 7 or requiring medical treatment (i.e., insulin or other diabetes medication other than Metformin).
  • Uncontrolled hypertension, defined as a systolic blood pressure (BP) > 155 mmHg or a diastolic BP > 100 mmHg
  • Clinically significant congestive heart failure, defined as New York Heart Association Class IV, or active symptoms related to heart failure, or exacerbation requiring hospitalization within 90 days of screening.
  • Any of the following: myocardial infarction, stroke, hospitalization for unstable angina pectoris, or transient ischemic attack within 90 days of screening.
  • Other medical conditions that could impact their treatment, similar to prior published reports
  • Treatment with oral or injectable glucagon-like peptide-1 (GLP-1) receptor agonists within 3 months before screening
  • Active acute or chronic pancreatitis diagnosed within 180 days or history of unprovoked pancreatitis within the past year.
  • Stage 3 or worse chronic kidney disease (i.e., eGFR < 60).
  • Known active gallstone disease, other than disease previously treated with cholecystectomy.
  • Newly diagnosed or worsening chronic liver disease.
  • Active malignancy
  • Major neurological disease, such as multiple sclerosis or Parkinson's Disease
  • Major psychiatric disease, such as psychosis or schizophrenia, or a psychiatric disease requiring hospitalization in the preceding 12 months
  • History of a suicide attempt or any reported suicidal behavior reported within 30 days of screening.
  • Personal history of MEN2
  • Personal or family history of medullary thyroid cancer
  • Impaired sensorium due to alcohol or drug use.

Treatment and study plan

Semaglutide (administered by PDS290 pen-injector)

Drug

Semaglutide 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)

Drug

Matching 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.

Primary outcomes

  1. BPI-SF Pain Severity Scale

    Time frame: Baseline, up to 52 weeks

    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

  1. BPI-SF Pain Interference

    Time frame: Baseline, up to 52 weeks

  2. Oswestry Disability Index (ODI)

    Time frame: Baseline, up to 52 weeks

  3. SF-36 Physical Component Summary (PCS) and Mental Component Summary (MCS)

    Time frame: Baseline, up to 52 weeks

  4. PROMIS Depression

    Time frame: Baseline, up to 52 weeks

  5. Pain Catastrophizing Scale

    Time frame: Baseline, up to 52 weeks

  6. Insomnia Severity Index

    Time frame: Baseline, up to 52 weeks

  7. PROMIS Sleep Disturbance

    Time frame: Baseline, up to 52 weeks

  8. Waist Circumference

    Time frame: Baseline, up to 52 weeks

  9. Number of New Concomitant Back Pain Treatments

    Time frame: Baseline, up to 52 weeks

    The number and type of new low back pain treatments initiated during the study period, captured using the study's Concomitant Back Pain Treatment Log.

    New daily pain medications, exercise/therapy regimens, cognitive/behavioral interventions, spinal injections, interventional pain procedures, lumbar spine surgery, and other treatments.

  10. Change in Serum High-Sensitivity C-Reactive Protein (hs-CRP)

    Time frame: Baseline, every 6 months till 52 weeks.

    Serum hs-CRP will be measured at each time point and reported in mg/L. Additional exploratory inflammatory blood biomarkers may also be assessed to characterize systemic inflammation.

  11. Treatment Satisfaction Questionnaire for Medication (TSQM)

    Time frame: Baseline, up to 52 weeks

  12. Change in serum Leptin levels

    Time frame: Baseline, every 6 months till 52 weeks.

    Serum leptin will be measured at each time point and reported in ng/mL.

Study contacts

Contact information is provided by the study sponsor or research team.

Elizabeth Wilson, MS, CCRP

CONTACT

[email protected]

314-722-0896

Faraz Arkam, MD

CONTACT

[email protected]

314-273-9224

Sponsors and collaborators

Lead sponsor

Washington University School of Medicine

Other

Collaborators

  • Novo Nordisk A/S

Registry information

Official study title

A Randomized-Controlled Trial of Semaglutide for Patients With Chronic Low Back Pain and Obesity

Important dates

Study start
2027
Primary completion
2031
Study completion
2031
First posted
Jul 28, 2026
Registry last updated
Jul 28, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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