| Summary: | Objectives: To ascertain if access to C-reactive protein (CRP) test kits—and staff training on how to use them in respiratory tract infection (RTI) management—in private community pharmacies (PCPs) can reduce non-prescription antibiotic dispensing for RTI. Methods: A parallel cluster randomized controlled trial was conducted in Nigeria. The clusters—which were equally the participating units—were PCPs with blood testing experience. Stratified block randomization was done. PCPs were stratified by the baseline value of the primary outcome. PCPs were not blinded. The intervention PCPs were provided with CRP kits and trained to use them to make decisions regarding non-prescription antibiotic dispensing for RTI. The control PCPs received no intervention. The primary outcome was the non-prescription antibiotic dispensing rate for RTI. Data were collected by blinded simulated clients who visited each PCP 30 times before and after the intervention without prescriptions. Analyses were by intention-to-treat. Results: Twenty PCPs were randomized, 1:1. Ten PCPs were analyzed in each arm. Each PCP contributed 30 data points to the multiple imputation analysis where antibiotic dispensing decreased by 15.66% (209/300 [intervention] vs 256/300 [control]) in the adjusted analysis (odds ratio = 0·279, 95% confidence interval = 0.107-0.726; P-value = 0.0090) and 16% (208/300 [intervention] vs 256/300 [control]) in the crude analysis (odds ratio = 0.299, 95% confidence interval = 0.098-0.911; P-value = 0.034). Conclusion: Access to CRP kits—and staff training on how to use them in RTI management—in PCPs reduced non-prescription antibiotic dispensing for RTI.
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