RESUMO
The COVID-19 pandemic was immediately marked by strong clinical research activity. The French national competent authority presents the data on request for authorization during the first 2 years of COVID-19 pandemic to inform discussions on future clinical research issues. Applications for authorization of interventional COVID-19 trials submitted between March 2020 and February 2022 were analysed. Trials on medicinal products were classified according to market authorization status, mechanism of action of the investigational product, target population and clinical context. In 2 years, 208 clinical trials were submitted. 75% were authorized, 3% refused, 22% withdrawn by the sponsor. Among medicinal products trials, 6% were adaptative, 28% included outpatients and 2% were focused on post COVID-19 symptoms. Vaccines were evaluated in 9% of trials, antivirals in 38% and immunomodulators in 35%; 63% of antiviral and 60% of immunomodulation trials included a drug with a marketing authorization in another indication. The dynamics of authorization prove the involvement of stakeholders but also illustrates the risk of dispersion of research efforts and the risk of decorrelation between trials and the epidemic evolution. The high rate of withdrawal of applications could be explained by changes in the sanitary context and by the dropping of some therapeutic approaches. Most of clinical trials evaluate drugs authorized in another indication and assessment procedures by authorities have to mitigate between the knowledge of safety profile of those drugs and the uncertainty in a new clinical context with rapidly evolving knowledge. COVID-19 experience should now support future evolution in clinical research practices.
RESUMO
Supply disruptions and drug shortages : the example of benzathine benzylpenicillin. Despite collective mobilisation, drug shortages have increased in recent years, creating a strong impact on public health. Anti-infective drugs, mainly injectable antibiotics, are particularly affected by these shortages. Although the causes of these ruptures are multiple, they are mainly related to the effects of globalisation and industrial strategies of rationalisation of production costs. The shortage of benzathine benzylpenicillin illustrates the action of the French Medicines Agency (ANSM), and the various actors to guarantee access to care and limit the consequences for the patient. Beyond measures taken at national level by the regulatory authorities in connection with the pharmaceutical companies, it is necessary to set up a concerted action at European level to fight effectively against drug shortages.
Tensions d'approvisionnement et ruptures de stock des médicaments : l'exemple de la benzathine benzylpénicilline. Malgré une mobilisation collective, les ruptures de stock des médicaments se sont multipliées ces dernières années, créant un fort retentissement en matière de santé publique. Les médicaments anti-infectieux, principalement les antibiotiques injectables, sont particulièrement impactés par ces pénuries. Bien que les causes de ces ruptures soient multiples, elles sont principalement liées aux effets de la mondialisation et des stratégies industrielles de rationalisation des coûts de production. La rupture de la benzathine benzylpénicilline illustre l'action de l'Agence nationale de sécurité du médicament et des produits de santé et des différents acteurs pour garantir l'accès aux soins et limiter les conséquences pour le patient. Au-delà des mesures prises au plan national par les autorités sanitaires en lien avec les laboratoires pharmaceutiques, il est nécessaire de mettre en place une action concertée au niveau européen pour lutter efficacement contre les pénuries de médicaments.
