Study summary
Evaluation of the efficacy of 20% IR3535 with a sustained-release formulation and 25% DEET against mosquitoes in a field setting in Ghana
Abudu M, Asafu-Adjaye A, Osei JHN, et al.
- Study type
- Field Trial
- Year
- 2025
- Species tested
- Wild mosquito populations (Ghana)
- Published in
- Parasites & Vectors 18:398
- Evidence strength
- Well-supported evidence
How it was tested
Field comparison of 20% sustained-release IR3535 against 25% DEET; reports percentage protective efficacy rather than a measured complete-protection time.
Summary
Field human-landing-catch evaluation of a sustained-release 20% IR3535 formulation versus 25% DEET against wild mosquito populations in Ghana.
Key findings
Average protection was 91.9% for 20% IR3535 and 89.2% for 25% DEET, with both giving strong, comparable repellency under field biting pressure dominated by Anopheles gambiae s.l.
Limitations
Single-country setting; relatively short observation window; sustained-release formulation may not generalize to standard IR3535 products.