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LASER: assisted staphylococcal eradication

Laser Assisted Staphylococcal ERadication prior to elective orthopaedic implantation surgery (LASER study): pilot study phase I

Status
Active, not recruiting
Phases
Phase 1
Study type
Observational
Source
ISRCTN
Registry ID
ISRCTN28026496
Enrollment
100
Registered
2015-10-19
Start date
2015-10-20
Completion date
Unknown
Last updated
2017-07-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Orthopaedic patients presenting for elective implant surgery that are colonised with S. aureus Infections and Infestations Staphylococcal infection, unspecified site

Interventions

All participants colonised with S. aureus will receive the decolonisation regimen currently recommended and used for MRSA eradication in NHS Lothian and recommended in national guidelines. A pack will

Sponsors

University of Edinburgh
Lead Sponsor
NHS Lothian
Collaborator

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Patient is scheduled for elective implant surgery 2. Patient is attending pre-operative assessment clinic within 8-21 days of planned surgery 3. Patient has confirmed nasal colonisation with S. aureus (MSSA or MRSA) after pre-operative assessment using a rapid PCR test for MRSA and MSSA

Exclusion criteria

Exclusion criteria: 1. Patient with allergy or other contraindication to mupirocin or chlorhexidine treatment 2. Patient known to have mupirocin or chlorhexidine resistant SA 3. Patient unable to wait the 3-4 hours for the SA screening result 4. Patients in whom microbiological treatment for SA other than decolonisation is planned prior to hospital admission for surgery 5. Patients receiving antibiotics in the last 2 weeks or planned to receive antibiotics prior to surgery (excluding routine peri-operative antibiotic prophylaxis) 6. Patient scheduled to receive joint revision surgery due to infection 7. Patient lives too far from the hospital to be followed-up for microbiological sampling 8. Patient aged <16 years 9. Pregnancy or breastfeeding 10. No informed consent

Design outcomes

Primary

MeasureTime frame
Current primary outcome measures as of 05/06/2017: Proportion of participants cleared of nasal SA at 48-96 hours after completing current eradication regimens for S. aureus Previous primary outcome measures: Proportion of participants positive for nasal S. aureus 48-96 hours post eradication regimen as determined by microbial analysis

Secondary

MeasureTime frame
Current secondary outcome measures as of 05/06/2017: Feasibility outcomes 1. Consent rates as proportion of eligible participants 2. Recruitment rates 3. Protocol compliance rates Clinical outcomes 1. Clearance rates of SA from all 3 sampled sites at 48-96 hours after completing current eradication regimens for MRSA. 2. Clearance rates of SA from all 3 sampled sites at hospital admission (pre-surgery) after completing current eradication regimens for MRSA. 3. Clearance rates of SA from all 3 sampled sites at hospital discharge (post-surgery) after completing current eradication regimens for MRSA. 4. Clearance rates of SA from all 3 sampled sites at 6 weeks follow-up after surgery after completing current eradication regimens for MRSA. 5. Adverse event and serious adverse event rates reported in phase I and II of pilot Previous secondary outcome measures: Feasibility outcomes: 1. Consent rates as proportion of eligible patients 2. Recruitment rates 3. Protocol compliance rates Clinical outcomes: 1. Clearance rates of S. aureus from all 3 sampled sites at 48-96 hours after completing current eradication regimens 2. Clearance rates of S. aureus from all 3 sampled sites at hospital admission (pre-surgery) after completing current eradication regimens 3. Clearance rates of S. aureus from all 3 sampled sites at hospital discharge (post-surgery) after completing current eradication regimens 4. Clearance rates of S. aureus from all 3 sampled sites at 6 weeks follow-up after surgery after completing current eradication regimens 5. Adverse event and serious adverse event rates 6. Rate of HAIs at 6 weeks post-surgery 7. Hospital length of stay; 6 week follow-up measures 8. Rates of mupirocin resistance at baseline 9. Rates of biofilm forming S. aureus at baseline

Countries

United Kingdom

Contacts

Public ContactJulia Boyd
julia.boyd@ed.ac.uk+44 (0)131 537 3842

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026