Effects of the Off-Label Drug Prescription in the Paediatric Population in Spain from the Adoption of the Latest European Regulation: A Pre-Post Study

The year 2021 marks the 15th anniversary of the Paediatric Regulation (1901/2006/EC) in Europe. The main aim of the study was to conduct a pre-post comparison on the annual off-label prescription rates in the under-18 population in Spain and assess the potential influence of the Paediatric Regulation adoption. An observational study in the paediatric population was performed. Four cross-sectional annual periods, one before and the three latest periods after the adoption of the Regulation, were compared. Prescriptions in the primary health care setting were sorted by age group and drug and off-label status were determined. The number of off-label prescriptions issued by paediatricians was over two million per year. Prior to the adoption of the Paediatric Regulation, the off-label prescription rate was estimated at 7% of total prescriptions. Although the increase in the off-label rate over the study periods was mild, it was statistically significant (OR: 1.045; 95% CI: 1.043–1.046; p < 0.05). One of the most vulnerable population groups was neonates and infants up to 1 year, in which the off-label prescription rates showed the highest increase during the post follow-up period, which was statistically significant (OR: 4.270; 95% CI: 4.253–4.287; p < 0.05). The findings can help raise awareness and advocate for the development and authorization of medicines for children in the primary health care setting.

Paediatric Medicines in Europe: The Paediatric Regulation—Is It Time for Reform?

Objectives: In this paper, we investigated the effects of the European Paediatric Regulation (EC) N° 1901/2006 with respect to satisfying the paediatric therapeutic needs, assessed in terms of the increased number of paediatric medicinal products, new therapeutic indications in specific high-need conditions (neonates, oncology, rare disease, etc.) and increased number of paediatric clinical studies supporting the marketing authorisation.Methods: We analysed the paediatric medicinal products approved by the European Medicines Agency in the period January 2007-December 2019, by collecting the following data: year of approval, active substance, legal basis for the marketing authorisation, type of medicinal product (i.e., chemical, biological, or ATMP), orphan drug status, paediatric indication, Anatomical Therapeutic Chemical code (first-level), number and type of paediatric studies. Data were compared with similar data collected in the period 1996–2006.Results: In the period January 1996–December 2019, in a total of 1,190 medicinal products and 843 active substances, 34 and 38%, respectively, were paediatric. In the two periods, before and after the Paediatric Regulation implementation, the paediatric/total medicinal products ratio was constant while the paediatric/total active substances ratio decreased. Moreover, excluding generics and biosimilars, a total of 106 and 175 paediatric medicines were granted a new paediatric indication, dosage or age group in the two periods; out of 175, 128 paediatric medicines had an approved Paediatric Investigational Plan. The remaining 47 were approved without an approved Paediatric Investigational Plan, following the provisions of Directive 2001/83/EC and repurposing an off-patent drug. The analysis of the clinical studies revealed that drugs with a Paediatric Investigational Plan were supported by 3.5 studies/drug while drugs without a Paediatric Investigational Plan were supported by only 1.6 studies/drug.Discussion: This report confirms that the expectations of the European Paediatric Regulation (EC) N° 1901/2006 have been mainly satisfied. However, the reasons for the limited development of paediatric medicines in Europe, should be further discussed, taking advantage of recent initiatives in the regulatory field, such as the Action Plan on Paediatrics, and the open consultation on EU Pharmaceutical Strategy.

Does the EU’s Paediatric Regulation work for new medicines for children in Denmark, Finland, Norway and Sweden? A cross-sectional study

ObjectiveThe aim of this study was to assess the marketing status of the new paediatric medicinal products listed in the 10-year report as initially authorised between 2007 and 2016, reflecting the product availability in four Nordic countries.DesignThis is a cross-sectional study.SettingAnalysis of the national medicine agency’s databases in Denmark, Finland, Norway and Sweden.Data sourceNew medicinal products with paediatric indications and new paediatric formulations listed in the Annex of European Medicines Agency’s EU Paediatric Regulation 10-year report.Data analysisThe products were classified according to national marketing status between January 2019 and March 2019, whether a product was authorised and whether the product was marketed.Main outcome measuresThe percentages of the new medicinal products with paediatric indications and new paediatric formulations having a valid marketing authorisation and being marketed, both in terms of the sums of all countries and separately for each country.ResultsAcross the four countries, 21%–32% (16/76–24/76) of the new medicinal products were not marketed. Of the new formulations relevant to children, 29%–50% (16/56–28/56) were not marketed, and a significant proportion of these products had never been marketed.ConclusionsThis study reflects the reality of the implementation of the Paediatric Regulation. The results show that several new paediatric medicines and new formulations are not marketed. This affects the product availability. Similar data from other countries are needed to evaluate the overall European status to find remedies to current situation and increase the availability of the medicines for children.

P23 Accelerating and de-risking the production of paediatric oral formulations

Background & AimAs part of the EU paediatric regulation, the paediatric use marketing authorisation (PUMA) was introduced, with an aim to stimulate research in existing compounds that are off-patent and/or to help transform known off-label use into authorised use.1 However, success has been limited, with only a few products gaining a PUMA, such as Sialanar 320 micrograms/mL glycopyrronium (equivalent to 400 micrograms/mL glycopyrronium bromide). A distinct challenge to overcome in this area is the development of more ‘age appropriate formulations’, particularly with an excipient composition and load that is suitable for paediatric patients. This project aims to establish an excipient screening platform, supplemented with analytical characterisation of materials, which will act as a decision making tool to accelerate and de-risk the production of age appropriate paediatric medicines.MethodTo develop this excipient screening platform, a list of drugs that require an age appropriate formulation was produced using the ‘needs for paediatric medicines’ documents provided by the European medicines agency (EMA),2whilst common problematic excipients in paediatrics were identified using an EMA reflection paper.3 Literature and prescribing data were also reviewed to ensure drugs selected would benefit from an age appropriate formulation. Differential scanning calorimetry (DSC) to determine compatibility of selected drugs with widely used excipients was carried out using a TA DSCQ200 instrument (TA Instruments, New Castle, DE) with TA Instruments Universal Analysis 2000 software. Data was collected under nitrogen atmosphere (50 mL min−1) using pierced flat-bottomed TZero aluminium pans (sample mass about 2 mg) and heating rate of 10 °C min−1 in the range from 50 to 400°C. For samples containing both the drug and an excipient, 1 mg of each was measured out and gently mixed with a spatula for one minute.ResultsThe most common class of drugs identified as requiring age appropriate formulations were related to cardiovascular disorders and neurology, whilst the majority of drugs identified also exhibit poor aqueous solubilities. Some identified problematic excipients include ethanol, sodium benzoate and sorbitol; however, these excipients may still be used in paediatric formulations, as long as they are below certain concentrations (for example, ethanol concentration should not exceed 0.5% w/v for under 6 years old). Two drugs identified through the initial screening, carvedilol and nifedipine, were analysed by DSC, alone and then alongside starch from corn and starch 1500; the resulting DSC curves showed no changes in peak size, position (peak onset temperatures for nifedipine and carvedilol were observed at 173.2°C and 117.3°C, respectively) and shape, as well as no additional peaks, therefore suggesting compatibility between the tested samples.ConclusionThis first phase of the development of an excipient screening platform will continue to scan several different excipients with selected active pharmaceutical ingredients (APIs) in order to create compatibility profiles. The excipient screening platform generated will accelerate and de-risk the production of age appropriate formulations, as it would allow screening for potential incompatibilities and acceptability, alongside informing formulation of appropriate oral paediatric dosage forms.ReferencesEuropean Commission. State of Paediatric Medicines in the EU. 10 years of the EU Paediatric Regulation. COM (2017) 626. Available at: https://ec.europa.eu/health/sites/health/files/files/paediatrics/docs/2017_childrensmedicines_report_en.pdfNeeds for paediatric medicines - European Medicines Agency [Internet]. 2019 [cited 28 June 2019]. Available from: https://www.ema.europa.eu/en/human-regulatory/research-development/paediatric-medicines/needs-paediatric-medicinesReflection paper: formulations of choice for the paediatric population [Internet]. European Medicines Agency. 2019 [cited 28 June 2019]. Available from: https://www.ema.europa.eu/en/documents/scientific-guideline/reflection-paper-formulations-choice-paediatric-population_en.pdf

More medicines for children: impact of the EU paediatric regulation

IntroductionThis paper focuses on the authorisation of new medicines, new indications and new pharmaceutical forms or strengths for use in children and also on the availability of paediatric information in the product information of centrally authorised medicinal products following the enforcement of the Paediatric Regulation on 26 January 2007.ObjectivesTo investigate whether the Paediatric Regulation has led to more medicines available for children in the European Union (EU) and if more information on paediatric use is now available in the product information of medicines authorised via the centralised procedure.Materials and methodsWe retrospectively analysed the centrally authorised medicinal products in the EU that had an approval for an initial marketing authorisation, a type II variation, or a line extension during the years 2004–2006 and 2012–2014. Medicinal products not subjected to the obligations of the Paediatric Regulation were excluded.ResultsIn 2004–2006, 20 new medicines and 10 new indications were centrally authorised for paediatric use compared with 26 new medicines and 37 new indications in 2012–2014. The number of medicines with a new pharmaceutical form or strength for use in children was eight in 2004–2006 and seven in 2012–2014. There was a huge increase in the number of products with changes of paediatric relevance in the summary of product characteristics in 2012–2014 compared with 2004–2006.ConclusionsThe entry into force of the Paediatric Regulation has had a positive impact on paediatric drug development with more medicines available for children in the EU and substantially more information available for clinicians on paediatric use in the product information.

Paediatric Research under the New eu Regulation on Clinical Trials: Old Issues New Challenges

Regulating paediatric research means searching for the balance between two valuable goals: protecting children while ensuring they benefit from safe and efficient medicines. Different legal instruments were adopted in the eu in order to regulate clinical trials, foster paediatric research and promote European and international ethical guidelines. However a new Regulation on clinical trials was adopted in 2014, and might change the current framework of paediatric research. How does the new Regulation 536/2014 foster research on children taking into account both the eu Paediatric Regulation and the eu Ethical Recommendations? Does it live up to the standards of the Directive 2001/20/ec and does it represent a step forward in accordance with international ethical guidelines? This article shows that, despite the adoption of new rules, many clarifications are still needed. Stakeholders involved in paediatric research have to play a driving role in the implementation process of the new Regulation.