Selecting the appropriate formulation and solubility-enabling technology for poorly water soluble drugs is an essential element in the development of formulations for paediatric patients. Different methodologies and structured strategies are available to select a suitable approach and guide formulation scientists for development of adult formulations. However, there is paucity of available literature for selection of technology and overcoming the challenges in paediatric formulation development. The need for flexible dosing, and the limited knowledge of the safety of many formulation excipients in paediatric subjects, impose significant constraints and in some instances require adaptation of the approaches taken to formulating these drugs for the adult population. Selection of the best drug delivery system for paediatrics requires an efficient, systematic approach that considers a drug's physical and chemical properties and the targeted patient population's requirements. This review is a step towards development of a strategy for the design of solubility enhancing paediatric formulations of highly insoluble drugs. The aim of this review is to provide an overview of different approaches and strategies to consider in order to assist development of paediatric formulation for poorly water-soluble drugs with the provision of examples of some marketed products. In addition, it provides recommendations to overcome the range of challenges posed by these strategies and adaptations of the adult approach/product presentation required to enable paediatric drug development and administration.
The development of age-appropriate formulations should focus on dosage forms that can deliver variable yet accurate doses that are safe and acceptable to the child, are matched to his/her development and ability, and avoid medication errors. However, in the past decade, the medication needs of neonates have largely been neglected. The aim of this review is to expand on what differentiates the needs of preterm and term neonates from those of the older paediatric subsets, in terms of environment of care, ability to measure and administer the dose (from the perspective of the patient and carer, the routes of administration, the device and the product), neonatal biopharmaceutics and regulatory challenges. This review offers insight into those challenges posed by the formulation of medicinal products for neonatal patients in order to support the development of clinically relevant products.
13 April 2023 in European Journal of Pharmaceutics and Biopharmaceutics
Both stability and compatibility of parenteral nutrition solutions (PNS) with drug products are major concerns for clinicians and clinical pharmacists, especially when concurrent administration of PNS with intravenous medications (IVM) is unavoidable. Since the same physicochemical principles apply to both adult's and paediatrics' PNS, concerns about stability and compatibility may still apply to both. However, these concerns are relatively more common in paediatrics and neonatal clinical settings, where limited vascular access can be problematic and the coadministration of PNS and drugs is more common. In neonatal and paediatric populations, there have been few experimental studies and comprehensive evaluations looking at medication compatibility with frequently used PNS. This work is part of a larger research project concerned for compatibility of PNS with commonly used intravenous medication in paediatric and neonates. This paper captures and reviews published data on factors influencing stability and compatibility of parenteral nutrition solutions. This information will help clinicians and clinical pharmacists to understand the principals of the stability and compatibility of PNS, furthermore, it will inform better design of future compatibility studies, as it highlights the complexity of PNS and the multiple factors influencing the stability of PNS, and hence its compatibility with IVM. When preparing, prescribing, and administering the PNS, especially when co-administration with IVM is unavoidable, it is important to take into account the physicochemical properties of the PNS components and IVM as well as administration conditions and environmental factors. These factors should also be considered in the design of the compatibility studies of the PNS with the IVM.
Cardiovascular diseases (CVD) account for 36% of deaths in Europe and the United States. Gene therapy can act as a therapeutic modality for the treatment of CVD. The use of microRNA mimetics may be advantageous as they regulate important processes in health and pathology. A major hurdle for using miRNA therapies relates to site specific delivery and sufficient cellular uptake of material to achieve efficacy To assess the feasibility of ultrasound responsive microbubble mediated delivery of miR mimics to cardiomyocytes. Liposome/microbubble formulations were added to HL-1 cardiomyocytes in the presence/absence of ultrasound (US). Transfection efficacy and functionality was assessed using epifluorescent microscopy, flow cytometry and qRT-PCR. DNA Quantification post-ultrasound mediated transfection of HL-1s using microbubbles was quantified. The capability of miR-133 microbubble formulations to suppress hypertrophy were measured by quantifying changes in cell size. Ultrasound mediated microbubble formulations enhanced intracellular delivery of miR mimics in cardiomyocytes. Both complexed/encapsulated miR-microbubble formulations delivered functional miR mimics and showed no adverse effect on cardiomyocyte viability. Furthermore, ultrasound mediated microbubble transfection of miR-133 mimics reversed cardiomyocyte hypertrophy in an in-vitro model. This novel delivery method has the potential for further development as a targeted delivery strategy for miR therapeutics to the heart.
Aim: Medication errors are a leading cause of preventable harm in paediatric patients, both during hospitalisation and after discharge. Evidence on the effectiveness of educational interventions to improve caregiver medication knowledge remains limited. Methods: A systematic review was conducted following PRISMA guidelines and registered in PROSPERO (ID: 1114374). Databases were searched for studies (2005–2025) involving paediatric patients (0–16 years) discharged on medication and evaluating caregiver‐focused educational interventions. Results: Seven studies (three Randomised controlled trials, three Interrupted Time Series and one cross‐sectional) including 1293 participants were included. Interventions commonly combined advanced counselling, health literacy‐informed education and standardised dosing tools. Multi‐component strategies significantly improved caregiver medication knowledge ( p < 0.001 in several studies) and reduced dosing errors (12%–54%, p < 0.05). Only one study assessed adherence, showing improvement. Methodological heterogeneity precluded meta‐analysis. Conclusion: Structured educational interventions effectively enhance caregiver understanding and reduce medication errors at home. Incorporating literacy‐sensitive materials, counselling and dosing tools into discharge processes may improve safety and caregiver confidence. Further research should explore long‐term impact, cost‐effectiveness and applicability across diverse settings.
2 December 2023 in Journal of Pharmacy and Pharmacology
Parenteral drug administration in the neonatal intensive care involves complex pharmacotherapy adjusted for the patient’s weight, fluid allowance, and complex multi-infusion systems. We investigated the delivery rate of a model drug through a multi-infusion system consisting of six intravenous infusions. Delivery rate of the model drug was determined after infusion initiation and termination. Measurements were collected spectrophotometrically in real time. Time to drug delivery and the amount of drug delivered were measured. The longest time to drug delivery was observed for a 500 g neonate model with a distal infusion connection point and neutral pump position (337 ± 30 min, P < 0.001). The shortest time was observed for a 1000 g neonate model in the combination of proximal infusion connection point and neutral pump position (18 ± 12 min, P < 0.05). The expected 100% of the drug was delivered only in two combinations: 500 g and 1000 g neonate models, proximal infusion connection point and neutral pump position (100.4 ± 4.7%, P = 0.819 and 100.2 ± 2.7%, P = 0.874, respectively). While the least drug was delivered to a 500 g neonate model in the combination of distal infusion connection point and neutral pump position (27.5 ± 5.8%, P < 0.001). Delayed drug delivery to premature neonates due to multi-infusion systems may compromise accurate drug administration and lead to dosing errors.