Benzoyl peroxide 5% / Clindamycin 1% gel

Background and objectives: Antibiotic resistance in Cutibacterium acnes is undermining topical macrolides and clindamycin, prompting renewed interest in zinc oxide nanoparticles (ZnO-NPs) as non-antibiotic alternatives. We aimed to (i) determine the antimicrobial and anti-inflammatory performance of topical ZnO-NP formulations across in vitro, animal and early human models; (ii) identify physicochemical parameters that modulate potency and tolerance; and (iii) delineate translational gaps and priority design elements for randomised trials. Methods: We systematically searched PubMed, Scopus and Web of Science until 1 June 2025 for in vitro, animal and human studies that evaluated ≤100 nm ZnO-NPs applied topically to C. acnes cultures, extracting data on bacterial load, lesion counts, biophysical skin parameters and acute toxicity. Eight eligible investigations (five in vitro, two animal, one exploratory human) analysed particles 20-50 nm in diameter carrying mildly anionic zeta potentials. Results: Hyaluronic acid-coated ZnO-NPs achieved a sixteen-fold higher selective kill ratio over Staphylococcus epidermidis at 32 µg mL1, while centrifugally spun polyvinyl alcohol dressings reduced C. acnes burden by 3.1 log10 on porcine skin within 24 h, and plant-derived nanogels generated inhibition zones that were 11% wider than benzoyl-peroxide's 5%. In human subjects, twice-daily 0.5% hyaluronic-ZnO nanogel cut inflammatory-lesion counts by 58% at week four and lowered transepidermal water loss without erythema. Preclinical safety was reassuring, zero mortality among animals at 100 µg mL1 and no irritation among patients, although high-dose sunscreen-grade ZnO (20 nm) delayed rat wound closure by 38%, highlighting dose-dependent differences. Conclusions: Collectively, the evidence indicates that nanoscale reformulation markedly augments zinc's antibacterial and anti-inflammatory performance while maintaining favourable acute tolerance, supporting progression to rigorously designed, adequately powered randomised trials that will benchmark ZnO-NPs against benzoyl peroxide and retinoids, optimise dosing for efficacy versus phototoxicity, and establish long-term dermatological safety.

Abstract licence: CC BY

The Global Burden of Disease Study 2020 ranked acne vulgaris as the eighth most common skin condition, with a global estimated prevalence of 9.4%. The clinical presentation of acne vulgaris ranges from comedones to nodules and cysts. The main treatment options for acne are retinoids, antibiotics, and benzoyl peroxide (BPO). This study aimed to evaluate the reported efficacy and safety of the combination treatment with retinoid and benzoyl peroxide. Three databases (ScienceDirect, Google Scholar, and PubMed) were searched using keywords such as acne, adapalene/benzoyl peroxide, and randomized controlled trial, and specific search moods such as "Title and abstract" for PubMed and "Title, abstract, and keywords" for ScienceDirect. On Google Scholar, the "allintitle" option was utilized. The articles were searched for the years between 2003 and 2023. The eight trials selected for systematic review reported randomized controlled trials in 4,596 individuals with the first trials being conducted in February 2007 and the last one in May 2022. There were 52.8% females in the trials, and the trials reported a primary reduction of acne lesions (efficacy) from 27.5% to 70.2%. The occurrence of adverse effects was also variable (ranging from 2.7% to 57.9%), but these effects were mild and vanished with time.  The results showed that the combination of adapalene and benzoyl peroxide is a safe and effective treatment.

Abstract licence: CC BY

Acne vulgaris is a common skin condition that significantly impacts both physical appearance and mental well-being. Acne, being a chronic skin condition, often requires continuous treatment. This study aims to evaluate the efficacy and safety of clindamycin phosphate 1.2%/benzoyl peroxide 3% compared to clindamycin phosphate 1.2%/adapalene 0.1% combinations for treating acne vulgaris. A systematic review and meta-analysis of randomized controlled trials were carried out following the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines, and three databases were searched to identify RCTs comparing CLIN/BPO with CLIN/ADAP. Primary outcomes included treatment-emergent adverse events, inflammatory and non-inflammatory lesion counts, and application site side effects. Statistical analyses were conducted using RevMan 5.3. The study included a total of 800 participants across three RCTs. The meta-analysis of three RCTs demonstrated a significantly lower risk of TEAEs with CLIN/BPO (OR = 0.49, 95% CI: 0.35-0.86, p < 0.001). CLIN/BPO also resulted in fewer application site side effects (OR = 0.33, 95% CI: 0.23-0.47, p < 0.001). However, no significant differences were observed between the groups for reducing inflammatory (MD = 1.34, 𝑝 = 0.121) or non-inflammatory lesion counts (MD = 0.04, 𝑝 = 0.98). The study concluded that although CLIN/BPO was associated with fewer side effects, both treatments were equally effective in reducing acne lesions. The favorable safety profile of CLIN/BPO, particularly regarding treatment-emergent and application-site adverse events, suggests it may be the more tolerable option for patients. Future studies with larger, more diverse populations are recommended to confirm these findings and explore long-term efficacy.

Abstract licence: CC BY-NC-ND 4.0

BackgroundShoulder infections are an unfortunate and serious complication of surgery. The prevention strategy for infections is multimodal, with a strong reliance on surgical preparation solutions. There is great variability in the use of and effectiveness of surgical preparation solutions; this review aims to identify the most effective methods of shoulder surgical site preparation in the literature.MethodsA systematic review and meta-analysis was conducted by 2 independent reviewers in accordance with the PRISMA (Preferred Reporting Items for Systematic Review and Meta-Analyses) framework. Articles were screened by title, then abstract, and finally by full text by each clinician independently. A third orthopedic clinician adjudicated any disagreement on the application of the inclusion criteria. Studies included were human clinical studies utilizing skin preparation methods for the shoulder in a simulated or real primary surgery setting. English language databases from 1980 until the first of January 2025 were accessed. The terms searched included "shoulder," combined with each of the terms "skin," "wound," "antibiotic," "decolonization," "topical," "eradication," "preparation," and "sterilization." The results were pooled and then analyzed in subgroups according to the timing of skin preparation, the solution used, and the area of sampling.ResultsThe search found 13,154 articles, of which 31 studies were included in the final study and captured a total of 2,115 patients who were cultured for organisms. The lowest rates of culture positivity at the time of surgery were associated with the use of benzoyl peroxide (27.1% culture positive) and prior-to-day-of-surgery preparation solution administration (30.5% culture positive). Patients who received preparation solutions with alcohol numbered 1,551, of which 577 (37.2%) had positive cultures. Patients who received preparation solutions without alcohol numbered 564, with 140 (24.8%) culture positive, P P = .027, chi-square = 4.89.ConclusionThere is a wide range of available surgical preparation solutions to attempt to prevent day-of-surgery culture positivity. However, even the most robust regiments still have a substantially high culture positivity rate at the time of surgery. Further trials are warranted to unify protocols for the management of perioperative shoulder preparation.

Abstract licence: CC BY-NC-ND

Acne vulgaris (AV) is a common dermatological condition that ranges from mild comedones to severe inflammatory nodules and scarring. Effective management is essential for improving patients' quality of life. The recent FDA approval of IDP-126 (Cabtreo™), a novel triple-combination gel, meets these needs by combining clindamycin phosphate, benzoyl peroxide, and adapalene into a single formulation. This systematic review and meta-analysis aimed to assess the efficacy, safety, and impact of IDP-126 on quality of life in managing AV. The study's goal was to provide clinicians with the necessary information to consider including this medication in acne treatment plans. A total of 281 articles were manually screened, and three studies (n = 388) met the inclusion criteria. Standardized mean differences were used to quantify lesion reductions, while pooled ORs assessed adverse events. Additional references were reviewed to address potential gaps in the reported outcomes. IDP-126 showed significant reductions in inflammatory and non-inflammatory lesions compared to vehicle treatments and demonstrated favorable numbers needed to treat compared to other topical therapies. It was associated with application site pain and erythema. Notable improvements in quality of life were observed across various domains related to acne severity. IDP-126 is an effective treatment for AV, offering substantial clinical benefits and improving quality of life. While it is associated with higher rates of certain adverse effects, its overall efficacy supports its inclusion in treatment regimens, provided that its safety profile is carefully managed to optimize patient outcomes.

Abstract licence: CC BY