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Durán CE, Riera-Arnau J, Abtahi S, Pajouheshnia R, Hoxhaj V, Gamba M, Alsina E, Martin-Perez M, Garcia-Poza P, Llorente-Garcia A, Gonzalez-Bermejo D, Ibánez L, Sabaté M, Vidal X, Ballarín E, Sanfélix-Gimeno G, Rodríguez-Bernal C, Peiró S, García-Sempere A, Sanchez-Saez F, Ientile V, Ingrasciotta Y, Guarneri C, Tanaglia M, Tari M, Herings R, Houben E, Swart-Polinder K, Holthuis E, Huerta C, Gini R, Roberto G, Bartolini C, Paoletti O, Limoncella G, Girardi A, Hyeraci G, Andersen M, Kristiansen SB, Hallgreen CE, Klungel O, Sturkenboom M. Impact of the 2018 revised Pregnancy Prevention Programme by the European Medicines Agency on the use of oral retinoids in females of childbearing age in Denmark, Italy, Netherlands, and Spain: an interrupted time series analysis. Front Pharmacol 2023; 14:1207976. [PMID: 37663263 PMCID: PMC10469888 DOI: 10.3389/fphar.2023.1207976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 07/24/2023] [Indexed: 09/05/2023] Open
Abstract
Background: In March 2018, the European pregnancy prevention programme for oral retinoids was updated as part of risk minimisation measures (RMM), emphasising their contraindication in pregnant women. Objective: To measure the impact of the 2018 revision of the RMMs in Europe by assessing the utilisation patterns of isotretinoin, alitretinoin and acitretin, contraceptive measures, pregnancy testing, discontinuation, and pregnancy occurrence concomitantly with a retinoid prescription. Methods: An interrupted time series (ITS) analysis to compare level and trend changes after the risk minimisation measures implementation was conducted on a cohort of females of childbearing age (12-55 years of age) from January 2010 to December 2020, derived from six electronic health data sources in four countries: Denmark, Netherlands, Spain, and Italy. Monthly utilisation figures (incidence rates [IR], prevalence rates [PR] and proportions) of oral retinoids were calculated, as well as discontinuation rates, contraception coverage, pregnancy testing, and rates of exposed pregnancies to oral retinoids, before and after the 2018 RMMs. Results: From 10,714,182 females of child-bearing age, 88,992 used an oral retinoid at any point during the study period (mean age 18.9-22.2 years old). We found non-significant level and trend changes in incidence or prevalence of retinoid use in females of child-bearing age after the 2018 RMMs. The reason of discontinuation was unknown in >95% of cases. Contraception use showed a significant increase trend in Spain; for other databases this information was limited. Pregnancy testing was hardly recorded thus was not possible to model ITS analyses. After the 2018 RMM, rates of pregnancy occurrence during retinoid use, and start of a retinoid during a pregnancy varied from 0.0 to 0.4, and from 0.2 to 0.8, respectively. Conclusion: This study shows a limited impact of the 2018 RMMs on oral retinoids utilisation patterns among females of child-bearing age in four European countries. Pregnancies still occur during retinoid use, and oral retinoids are still prescribed to pregnant women. Contraception and pregnancy testing information was limited in most databases. Regulators, policymakers, prescribers, and researchers must rethink implementation strategies to avoid any pregnancy becoming temporarily related to retinoid use.
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Affiliation(s)
- Carlos E. Durán
- Julius Center for Health Sciences and Primary Care, Department of Data Science and Biostatistics, University Medical Center Utrecht, Utrecht, Netherlands
| | - Judit Riera-Arnau
- Julius Center for Health Sciences and Primary Care, Department of Data Science and Biostatistics, University Medical Center Utrecht, Utrecht, Netherlands
- Department of Clinical Pharmacology, Vall Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Shahab Abtahi
- Division of Pharmacoepidemiology and Clinical Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Universiteit Utrecht, Utrecht, Netherlands
| | - Romin Pajouheshnia
- Division of Pharmacoepidemiology and Clinical Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Universiteit Utrecht, Utrecht, Netherlands
| | - Vjola Hoxhaj
- Julius Center for Health Sciences and Primary Care, Department of Data Science and Biostatistics, University Medical Center Utrecht, Utrecht, Netherlands
| | - Magdalena Gamba
- Division of Pharmacoepidemiology and Clinical Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Universiteit Utrecht, Utrecht, Netherlands
| | - Ema Alsina
- Julius Center for Health Sciences and Primary Care, Department of Data Science and Biostatistics, University Medical Center Utrecht, Utrecht, Netherlands
| | - Mar Martin-Perez
- Agencia Española de Medicamentos y Productos Sanitarios, Madrid, Spain
| | | | | | | | - Luisa Ibánez
- Department of Clinical Pharmacology, Vall Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Mònica Sabaté
- Department of Clinical Pharmacology, Vall Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Xavier Vidal
- Department of Clinical Pharmacology, Vall Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Elena Ballarín
- Department of Clinical Pharmacology, Vall Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Gabriel Sanfélix-Gimeno
- The Foundation for the Promotion of Health and Biomedical Research of Valencia Region, Health Services Research Unit (FISABIO - HSRU), Valencia, Spain
| | - Clara Rodríguez-Bernal
- The Foundation for the Promotion of Health and Biomedical Research of Valencia Region, Health Services Research Unit (FISABIO - HSRU), Valencia, Spain
| | - Salvador Peiró
- The Foundation for the Promotion of Health and Biomedical Research of Valencia Region, Health Services Research Unit (FISABIO - HSRU), Valencia, Spain
| | - Aníbal García-Sempere
- The Foundation for the Promotion of Health and Biomedical Research of Valencia Region, Health Services Research Unit (FISABIO - HSRU), Valencia, Spain
| | - Francisco Sanchez-Saez
- The Foundation for the Promotion of Health and Biomedical Research of Valencia Region, Health Services Research Unit (FISABIO - HSRU), Valencia, Spain
| | - Valentina Ientile
- Department of Biomedical and Dental Sciences and Morpho-functional Imaging, University of Messina, Messina, Italy
| | - Ylenia Ingrasciotta
- Section of Pharmacology, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Claudio Guarneri
- Department of Biomedical and Dental Sciences and Morpho-functional Imaging, University of Messina, Messina, Italy
| | - Matilde Tanaglia
- Section of Pharmacology, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | | | | | | | | | | | - Consuelo Huerta
- Department of Public Health and Maternal and Child Health, Faculty of Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - Rosa Gini
- Agenzia Regionale di Sanità Della Toscana (ARS), Florence, Italy
| | - Giuseppe Roberto
- Agenzia Regionale di Sanità Della Toscana (ARS), Florence, Italy
| | | | - Olga Paoletti
- Agenzia Regionale di Sanità Della Toscana (ARS), Florence, Italy
| | | | - Anna Girardi
- Agenzia Regionale di Sanità Della Toscana (ARS), Florence, Italy
| | - Giulia Hyeraci
- Agenzia Regionale di Sanità Della Toscana (ARS), Florence, Italy
| | - Morten Andersen
- Pharmacovigilance Research Center, Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Sarah Brøgger Kristiansen
- Pharmacovigilance Research Center, Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Christine Erikstrup Hallgreen
- Copenhagen Centre for Regulatory Science, Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Olaf Klungel
- Division of Pharmacoepidemiology and Clinical Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Universiteit Utrecht, Utrecht, Netherlands
| | - Miriam Sturkenboom
- Julius Center for Health Sciences and Primary Care, Department of Data Science and Biostatistics, University Medical Center Utrecht, Utrecht, Netherlands
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Abtahi S, Pajouheshnia R, Durán CE, Riera-Arnau J, Gamba M, Alsina E, Hoxhaj V, Andersen M, Bartolini C, Kristiansen SB, Brown J, Hallgreen CE, Garcia-Poza P, Gardarsdottir H, Gini R, Girardi A, Holthuis E, Huerta C, Ibánez L, Limoncella G, Martín-Pérez M, Paoletti O, Roberto G, Souverein P, Swart KMA, Wing K, Sturkenboom M, Klungel O. Impact of 2018 EU Risk Minimisation Measures and Revised Pregnancy Prevention Programme on Utilisation and Prescribing Trends of Medicinal Products Containing Valproate: An Interrupted Time Series Study. Drug Saf 2023:10.1007/s40264-023-01314-3. [PMID: 37294532 DOI: 10.1007/s40264-023-01314-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/25/2023] [Indexed: 06/10/2023]
Abstract
INTRODUCTION Due to established teratogenicity of valproates, the EU risk minimisation measures (RMMs) with a pregnancy prevention programme (PPP) for valproate were updated in March 2018. OBJECTIVES To investigate the effectiveness of the 2018 EU RMMs on valproate utilisation in five European countries/regions. METHODS A multi-database, times series study of females of childbearing potential (12-55 years) was conducted using electronic medical records from five countries/regions (01.01.2010-31.12.2020): Denmark, Tuscany (Italy), Spain, the Netherlands, and the UK. Clinical and demographic information from each database was transformed to the ConcePTION Common Data Model, quality checks were conducted and a distributed analysis was performed using common scripts. Incident and prevalent use of valproate, proportion of discontinuers and switchers to alternative medicine, frequency of contraception coverage during valproate use, and occurrence of pregnancies during valproate exposure were estimated per month. Interrupted time series analyses were conducted to estimate the level or trend change in the outcome measures. RESULTS We included 69,533 valproate users from 9,699,371 females of childbearing potential from the five participating centres. A significant decline in prevalent use of valproates was observed in Tuscany, Italy (mean difference post-intervention -7.7%), Spain (-11.3%), and UK (-5.9%) and a non-significant decline in the Netherlands (-3.3%), but no decline in incident use after the 2018 RMMs compared to the period before. The monthly proportion of compliant valproate prescriptions/dispensings with a contraceptive coverage was low (<25%), with an increase after the 2018 RMMs only in the Netherlands (mean difference post-intervention 12%). There was no significant increase in switching rates from valproates to alternative medicine after the 2018 intervention in any of the countries/regions. We observed a substantial number of concurrent pregnancies during valproate exposure, but with a declining rate after the 2018 RMMs in Tuscany, Italy (0.70 per 1000 valproate users pre- and 0.27 post-intervention), Spain (0.48 and 0.13), the Netherlands (0.34 and 0.00), and an increasing rate in UK (1.13 and 5.07). CONCLUSION There was a small impact of the 2018 RMMs on valproate use in the studied European countries/regions. The substantial number of concurrent pregnancies with valproate exposure warrants a careful monitoring of implementation of the existing PPP for valproate in clinical practice in Europe, to see if there is any need for additional measures in the future.
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Affiliation(s)
- Shahab Abtahi
- Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University (UU), David de Wiedgebouw, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Romin Pajouheshnia
- Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University (UU), David de Wiedgebouw, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Carlos E Durán
- Julius Global Health, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
| | - Judit Riera-Arnau
- Julius Global Health, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
- Clinical Pharmacology Department, Hospital Universitari de la Vall d'Hebron, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Magdalena Gamba
- Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University (UU), David de Wiedgebouw, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Ema Alsina
- Julius Global Health, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
| | - Vjola Hoxhaj
- Julius Global Health, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
| | - Morten Andersen
- Pharmacovigilance Research Center, Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | | | - Sarah Brøgger Kristiansen
- Pharmacovigilance Research Center, Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jeremy Brown
- London School of Hygiene & Tropical Medicine (LSHTM), London, UK
| | - Christine Erikstrup Hallgreen
- Copenhagen Centre for Regulatory Science, Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | | | - Helga Gardarsdottir
- Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University (UU), David de Wiedgebouw, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
- Department of Clinical Pharmacy, UMCU, Utrecht, The Netherlands
| | - Rosa Gini
- Agenzia Regionale di Sanità della Toscana (ARS), Firenze, Italy
| | - Anna Girardi
- Agenzia Regionale di Sanità della Toscana (ARS), Firenze, Italy
| | - Emily Holthuis
- PHARMO Institute for Drug Outcomes Research, Utrecht, The Netherlands
| | - Consuelo Huerta
- Department of Public Health, Maternal and Child Health, Faculty of Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - Luisa Ibánez
- Clinical Pharmacology Department, Hospital Universitari de la Vall d'Hebron, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | | | - Mar Martín-Pérez
- Agencia Espanola de Medicamentos y Productos Sanitarios (AEMPS), Madrid, Spain
| | - Olga Paoletti
- Agenzia Regionale di Sanità della Toscana (ARS), Firenze, Italy
| | | | - Patrick Souverein
- Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University (UU), David de Wiedgebouw, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Karin M A Swart
- PHARMO Institute for Drug Outcomes Research, Utrecht, The Netherlands
| | - Kevin Wing
- London School of Hygiene & Tropical Medicine (LSHTM), London, UK
| | - Miriam Sturkenboom
- Julius Global Health, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
| | - Olaf Klungel
- Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University (UU), David de Wiedgebouw, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands.
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