| Title: | Cost-effectiveness of CA125- and age-informed risk-based triage for ovarian cancer detection in primary care |
| Journal: | British Journal of Cancer |
| Published: | 17 Sep 2025 |
| Pubmed: | https://pubmed.ncbi.nlm.nih.gov/40962845/ |
| DOI: | https://doi.org/10.1038/s41416-025-03166-3 |
| URL: | https://www.nature.com/articles/s41416-025-03166-3.pdf |
Publication 19479
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Abstract
BackgroundIn England, current practice is cancer antigen 125 (CA125) testing with pelvic ultrasound scan (USS) if CA125 is ≥35 U/mL for triage of women with suspected ovarian cancer (OC) in primary care. However, OC risk varies with CA125 level and age. The Ovatools model predicts OC risk based on age and CA125 levels to support primary care triage.MethodsWe evaluated five alternative triage pathways for suspected OC in primary care, using a decision model. Two CA125-USS sequential pathways used Ovatools risk: 1-3% (subsequent USS) and ≥3% (urgent referral), or age-adjusted CA125 thresholds equivalent to Ovatools risks. Three pathways involved concurrent CA125-USS testing, with referral if abnormal USS or one of the following: (1) Ovatools risk ≥3%, (2) CA125 above the equivalent age-adjusted threshold, or (3) CA125 ≥ 35 U/mL. Clinical and cost-effectiveness was compared against current practice for women over and under 50 years.ResultsAll alternative pathways increased benefits at age ≥50 years, at additional cost. The incremental cost-effectiveness ratios for CA125-USS sequential pathways were below £30,000, dropping below £20,000 if the Ovatools threshold for USS increased to 1.2-1.4% risk.DiscussionFor women ≥50 years, the Ovatools and equivalent age-adjusted threshold sequential pathways are cost-effective compared to current practice.</p>
7 Authors
- Runguo Wu
- Kirsten D. Arendse
- Tooba Hamdani
- Fiona M. Walter
- Emma J. Crosbie
- Borislava Mihaylova
- Garth Funston
1 Application
| Application ID | Title |
|---|---|
| 56757 | Developing chronic disease models to inform health policy and guide treatment decisions |
Enabling scientific discoveries that improve human health