This paper, titled “A prospective cluster randomized trial of an interventions bundle to reduce inappropriate antibiotic use for upper respiratory tract infections in the outpatient setting” by Butt et al., published in BMC Infectious Diseases in 2025, presents a significant contribution to the global effort against antimicrobial resistance. The research addresses the critical public health threat posed by antibiotic overuse and the resulting increase in antimicrobial resistance, which has been directly implicated in 1.27 million global deaths and contributed to nearly 5 million deaths in 2019. A major driver of this problem is the frequent and often inappropriate prescription of antibiotics for acute upper respiratory tract infections (URTIs) in outpatient settings, despite URTIs being primarily viral in origin. Estimates suggest that 50–80% of antibiotic prescriptions for URTIs are inappropriate, stemming from factors such as limited time for assessment, fear of missing serious bacterial infections, patient expectations, and insufficient knowledge regarding the consequences of overuse.
To address this challenge, the study aimed to determine the impact of a multicomponent intervention bundle in reducing inappropriate antibiotic use for URTIs in outpatient settings. The research utilized a prospective, cluster-randomized trial (CRT) design, conducted across four Primary Healthcare Centers (PHCCs) in Qatar. The study period for data collection spanned from August 2023 to October 2024, with the clinical trial phase specifically from December 1, 2023, to October 31, 2024. Participants included individuals with a diagnosis of URTI who were prescribed antibiotics, excluding children ≤ 2 years old and those prescribed only topical antibiotics.
The core of the intervention involved a bundled 4-component strategy delivered to two randomly assigned intervention sites, while two control sites received a single intervention (an algorithm-driven decision support tool). The four components of the comprehensive intervention were:
- Extensive provider education on appropriate antibiotic use for common URTIs, based on professional society guidelines and pilot-tested materials, delivered through training sessions and monthly email reminders.
- An algorithm-driven decision support tool providing simplified guidelines for URTI management, distributed in print format and included in training and reminders.
- The option for deferred prescription, allowing physicians to write a prescription for patients to fill only if symptoms had not improved after 72 hours, particularly for low-risk patients.
- Monthly feedback to physicians via a customized dashboard detailing their antibiotic prescription patterns, including anonymized comparisons with peers at the same site, to reinforce appropriate prescribing.
The primary outcome measured was the reduction in inappropriate antibiotic prescriptions for URTIs in the intervention group compared to the control group during the 11-month follow-up. The study’s ethical guidelines adhered to the Declaration of Helsinki, and it was approved by institutional review boards, with a waiver of informed consent granted due to the study design. Statistical analysis employed a multi-level mixed effects logistic regression model to account for clustering effects and adjust for individual-level covariates.
Key findings demonstrated that the multicomponent intervention was highly effective:
- The intervention was associated with a 29% reduction in the odds of inappropriate antibiotic prescriptions (adjusted odds ratio [aOR] 0.71; 95% CI 0.66–0.77).
- A relative reduction of 20.9% in inappropriate prescriptions was observed between the intervention and control groups (44.9% vs. 35.5%; p < 0.001).
- Specifically, the intervention sites saw a 16.3% relative drop in inappropriate antibiotic prescriptions from baseline to post-intervention (42.4% to 35.5%; p < 0.001), while control sites showed only a 2.2% change (45.9% to 44.9%; p = 0.4).
- Interestingly, the study identified that senior-most physicians (senior consultants) and younger individuals (19–40 years old) were more likely to prescribe or receive inappropriate antibiotic prescriptions, suggesting targets for future interventions.
- Commonly prescribed antibiotics included amoxicillin/clavulanate (49.5%), amoxicillin (13.7%), azithromycin (10.4%), clarithromycin (9.8%), and cefixime (6.8%), collectively accounting for 90.1% of prescriptions.
- Importantly, no increased risk of emergency department visits or hospitalizations was detected in either group, indicating the safety of the intervention.
In conclusion, the study strongly supports the feasibility and effectiveness of a bundled multicomponent intervention in significantly reducing inappropriate antibiotic prescriptions for URTIs in outpatient settings. The authors recommend that future strategies to mitigate inappropriate prescriptions should particularly target younger adult patients and more senior clinicians.
Reference: Butt, A. A., Shams, S., Jabeen, A., Al-Nuaimi, A. A., Krishnan, J. I., Malik, A. B., Saleem, S., Abdulaziz, M. H., Seyam, N. I., Aziz, K., Kandil, D., Thomas, A. G., Nafady-Hego, H., Lone, M. I., Al Ajmi, J., Bhutta, Z. A., AlSulaiti, N., Said Hussein, W. E., Semaan, S., Al-Abdulla, S. A., Al-Kuwari, M. G., & Abou-Samra, A.-B. (2025). A prospective cluster randomized trial of an interventions bundle to reduce inappropriate antibiotic use for upper respiratory tract infections in the outpatient setting. BMC Infectious Diseases, 25(818). https://doi.org/10.1186/s12879-025-11210-z.
