Hip fracture thrombosis prevention: aspirin vs LMWH after surgery
Official title: Delivery and Implementation of a Randomised Cluster Crossover Trial on Thrombosis
Run by Queen Mary University of London · NCT06937372 · Data updated 2026-11-12
A large UK study tests whether aspirin or a daily LMWH shot works better to prevent blood clots after hip fracture surgery.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 60 Years to 120 Years |
| Sex | All |
| Enrollment | 21194 (estimated) |
| Sponsor | Queen Mary University of London Academic / other |
| Locations | 1 site (London) |
| Status | Recruiting |
| Started | July 1, 2026 |
| Main results expected | October 31, 2027 |
| Study ends | April 30, 2028 |
| Registry record updated | September 23, 2026 |
| Trial ID | NCT06937372 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults aged 60 to 150 with fragility hip fractures identified through UK hip registries who undergo hip fracture surgery.
✕Probably not a fit
Patients for whom LMWH is already contraindicated or those who do not fit registry inclusion criteria may not benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
The DIRECT study tests two common ways to prevent clots in people who have had a hip fracture. It compares aspirin taken by mouth to low molecular weight heparin given as injections, in a randomized crossover design. Participants are adults aged 60 to 150 with fragility hip fractures and are enrolled through UK hip fracture registries. The trial aims to determine which approach is safer and more effective for thromboprophylaxis in this setting. Lead sponsorship is by Queen Mary University of London, with study sites including Whipps Cross University Hospital in London.
Why it matters
Potential benefit: If successful, the study could identify a simpler or safer method to prevent clots after hip fracture, potentially reducing hospital stays and complications.
How similar studies have gone: Prior research has explored aspirin vs LMWH for thromboprophylaxis, but results vary and this trial uses a randomized crossover approach in a hip fracture population.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Adults from 60 to 150 years sustaining fragility hip fracture identified by their entry into UK hip registries. Exclusion Criteria: * Individuals who do not meet the eligibility criteria to be enrolled in the NHFD and SHFA registries Hip fracture individuals above 150 years of age.
Where it's running
-
Whipps Cross University Hospital
London, United Kingdom Recruiting
Study contacts
- Study coordinator: Nkemjika S Abiakam, BSc, MRes, MSc, PhD
- Email: n.abiakam@qmul.ac.uk
- Phone: 00000000
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.