ArticleAnnals of internal medicine2025
The Cost-Effectiveness of Semaglutide and Tirzepatide for Patients With Knee Osteoarthritis and Obesity.
Article in Annals of internal medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
3 citing papers in PubMed.
- Beyond Weight Loss: Tirzepatide as a Metabolic Disease-Modifying Strategy for Metabolic Dysfunction-Associated Steatohepatitis: A Narrative Review.Health science reports · 2026Article
- GLP-1 receptor agonists in obesity-related knee osteoarthritis: from weight loss to therapeutic pathway reconstruction.Frontiers in pharmacology · 2026Review
- Review
Corrections and comments
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Authors and funding
12 authors.
Funding
Abstract
backgroundGlucagon-like peptide-1 receptor agonists (GLP1RAs) lead to substantial weight loss and pain reduction in persons with knee osteoarthritis and obesity.
objectiveTo evaluate the cost-effectiveness of 2 GLP1RAs, semaglutide and tirzepatide, for patients with osteoarthritis and obesity.
designOsteoarthritis Policy Model, a validated microsimulation model of knee osteoarthritis, to estimate lifetime benefits and costs of weight loss strategies. DATA SOURCES: Published data to derive treatment-related weight loss, pain reduction, and costs of GLP1RAs from the U.S. Office of Health Policy. TARGET POPULATION: Persons with knee osteoarthritis and obesity in the United States. The base-case cohort had a Western Ontario and McMaster Universities Osteoarthritis Index pain score of 71 (0 to 100, 100 worst) and a mean body mass index (BMI) of 40 kg/m TIME HORIZON: Lifetime. PERSPECTIVE: Health care, societal.
interventionSemaglutide, tirzepatide, laparoscopic sleeve gastrectomy (LSG), Roux-en-Y gastric bypass (RYGB), and diet and exercise. OUTCOME MEASURES: Quality-adjusted life-years (QALYs), cost, and incremental cost-effectiveness ratios (ICERs). RESULTS OF BASE-CASE ANALYSIS: Tirzepatide provided greater health benefits at lower costs than semaglutide and yielded a $57 400 per QALY ICER versus diet and exercise. For those eligible, RYGB provided greater health benefits at lower costs than the 2 GLP1RAs and had a $30 700 per QALY ICER versus LSG. RESULTS OF SENSITIVITY ANALYSIS: Tirzepatide's ICER was most sensitive to changes in medication costs, treatment efficacy, and cohort baseline BMI. Tirzepatide had a 64% and semaglutide had a 34% probability of being cost-effective at a $100 000 per QALY threshold. LIMITATION: Data from multiple sources.
conclusionBoth tirzepatide and semaglutide would be widely considered cost-effective when compared directly with usual care. Tirzepatide would offer the most favorable return on investment to decision makers whose cost-effectiveness thresholds exceed $57 400 per QALY. PRIMARY FUNDING SOURCE: The Arthritis Foundation and National Institute of Arthritis and Musculoskeletal and Skin Diseases.
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Registered trials
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