Drugs Recommended in Adult Rheumatic Diseases, But Considered for Off-Label Use in Argentina.

BACKGROUND: Off-label (OL) drug use is the prescription of a drug for indications other than those authorised in its technical datasheet. The objective of this study was to identify drugs recommended in rheumatology but considered for off-label use in Argentina. METHODS: A list of medications for certain selected rheumatic conditions was compiled. A drug was considered recommended if it was endorsed by a) at least one Argentine or Pan-American treatment guideline or consensus, or b) two international treatment guidelines, or c) one international treatment guideline and one selected textbook. Approval of these drugs for any condition in Argentina until December 31st, 2018 was explored, and medicines were divided into those with on-label indications and those considered for OL use. RESULTS: One hundred and thirty-six medications were analysed in 13 clinical conditions. Sixty-seven OL recommendations (49%) were found, and several drugs had more than one. All the conditions included the recommendation of at least 1 OL drug except osteoporosis and rheumatoid arthritis. The frequency of OL recommendations for the following conditions was 100%: calcium pyrophosphate dihydrate crystal deposition disease, polymyalgia rheumatica, Sjögren syndrome, and systemic sclerosis. The drugs with the highest number of OL recommendations were methotrexate (in 7 conditions), and glucocorticoids and mycophenolate (in 4). There were 2 OL recommendations for rituximab and 1 for abatacept. CONCLUSIONS: Almost all the rheumatic disorders analysed involved the recommendation of at least 1 OL medication, and in 4 conditions all the recommendations were OL. Most OL drugs recommended in rheumatology are neither biological nor small-molecule therapies.

Drugs Recommended in Adult Rheumatic Diseases, But Considered for Off-Label Use in Argentina.

BACKGROUND: Off-label (OL) drug use is the prescription of a drug for indications other than those authorised in its technical datasheet. The objective of this study was to identify drugs recommended in rheumatology but considered for off-label use in Argentina. METHODS: A list of medications for certain selected rheumatic conditions was compiled. A drug was considered recommended if it was endorsed by a) at least one Argentine or Pan-American treatment guideline or consensus, or b) two international treatment guidelines, or c) one international treatment guideline and one selected textbook. Approval of these drugs for any condition in Argentina until December 31st, 2018 was explored, and medicines were divided into those with on-label indications and those considered for OL use. RESULTS: One hundred and thirty-six medications were analysed in 13 clinical conditions. Sixty-seven OL recommendations (49%) were found, and several drugs had more than one. All the conditions included the recommendation of at least 1 OL drug except osteoporosis and rheumatoid arthritis. The frequency of OL recommendations for the following conditions was 100%: calcium pyrophosphate dihydrate crystal deposition disease, polymyalgia rheumatica, Sjögren syndrome, and systemic sclerosis. The drugs with the highest number of OL recommendations were methotrexate (in 7 conditions), and glucocorticoids and mycophenolate (in 4). There were 2 OL recommendations for rituximab and 1 for abatacept. CONCLUSIONS: Almost all the rheumatic disorders analysed involved the recommendation of at least 1 OL medication, and in 4 conditions all the recommendations were OL. Most OL drugs recommended in rheumatology are neither biological nor small-molecule therapies.

Serious Adverse Drug Reactions and Safety Signals in Children: A Nationwide Database Study.

Children are more exposed to inappropriate medicine use and its consequent harms. Spontaneous reporting of suspected Serious Adverse Drug Reactions (SADR) increases knowledge and prevention of pharmacotherapy risk. Disproportionality measures are useful to quantify unexpected safety issues associated with a given drug-event pair (signals of disproportionality). This cross-sectional study aimed to assess SADR reporting and safety signals for Brazilian children from 0-12 years old, notified between January 2008 and December 2013 from the Brazilian Surveillance Agency (Notivisa). Information from serious reports (gender and age of the patient, event description, suspected drug) was included. Disproportionality analysis based on Reporting Odds Ratios with a confidence interval of 95% was conducted to identify possible signals of disproportionate reporting (SDR). Almost 30% of 1,977 suspected SADR was related to babies (0-1-year-old). 69% of reports happened with intravenous dosage forms, and 35% of suspected SADR involved off label use according to age. Laronidase, miglustat, imipenem/cilastatin, and clofarabine were involved in six or more suspected deaths among 75 deaths reported. There were 107 SDRs, of which 16 events (15%) were not described in the product labels. There was a relatively higher number of SADRs in Brazilian children compared with studies from other countries. SDRs found, (especially drug-event pairs 'imipenen/cilastatin-pneumonia' and 'laronidase-respiratory insufficiency') should be investigated more. The reports of SADR with IV dosage forms and OL drug use suggest the need for drug research and the use of better dosage forms for children in Brazil.

Análisis del número y diseño de ensayos clínicos y de la prescripción de medicamentos para indicaciones no incluidas en su ficha técnica en pacientes hospitalizados pediátricos / Analysis of clinical trials and off-label drug use in hospitalized pediatric patients

Introducción. La falta de ensayos clínicos en pediatría (ECP) conduce a la prescripción off-label de medicamentos en niños (POMN). Nuestro objetivo fue analizar el número y diseño de ECP y de POMN en los últimos años. Población, material y métodos. Estudio observacional, retrospectivo de ECP y POMN desde 2007 hasta 2012 realizados en un hospital infantil con 252 camas. Se analizó el número y diseño de ECP y de POMN por año y sus características. Resultados. Se evaluaron 87 ECP y 449 principios activos correspondientes a 1049 medicamentos prescritos a niños hospitalizados. De ellos, 117 (26%) se utilizaron fuera de prospecto. Los ECP fueron en aumento desde 2008 hasta 2011. Ese año, el 52,2% de los ECP fueron no aleatorizados ni controlados y solo 39,1% fueron aleatorizados controlados. Un 77% de los fármacos investigados eran prescritos fuera de prospecto. La POMN se mantuvo estable durante el estudio. Conclusiones. En nuestro hospital, ha aumentado la investigación en pediatría en los últimos años; los estudios no aleatorizados ni controlados fueron los más frecuentes. La POMN no se ha modificado.

Introduction. The lack of pediatric clinical trials (PCTs) leads to an off-label drug use (OLDU) in children. Our objective was to analyze the number and design of PCTs and OLDU in children in the past years. Population, material and methods. Observational and retrospective study on PCTs and OLDU in children, conducted from 2007 to 2012 in a 252-bed children's hospital. The number and design of PCTs and OLDU in children were analyzed by year and by characteristics. Results. Eighty-seven PCTs and 449 active ingredients corresponding to 1049 drugs prescribed to hospitalized children were evaluated.Of these, 117 (26%) were used off-label. The number of PCTs increased from 2008 to 2011. In 2011, 52.2% of PCTs were non-randomized and uncontrolled studies, and only 39.1% were randomized, controlled trials. Of all studied drugs, 77% corresponded to off-label use. OLDU in children remained steady throughout the study period. Conclusions. In our hospital, the number of pediatric research studies has increased in the past years, being non-randomized and uncontrolled studies the most frequent. OLDU in children has not changed

A alta prevalência de prescrições de medicamentos off-label e não licenciados em unidade de terapia intensiva pediátrica brasileira / High prevalence of off-label and unlicensed drug prescribing in a Brazilian intensive care unit

OBJETIVO: Descrever o uso e determinar a prevalência de medicamentos de uso off-label enão licenciados em prescrições na unidade de terapia intensiva pediátrica de um hospital no sudeste do Brasil. MÉTODOS: Estudo transversal envolvendo os pacientes internados na unidade de terapia intensiva pediátrica durante o período de maio de 2008 a janeiro de 2009. A classificação quanto aos critérios de aprovação da Agência de Vigilância Sanitária (Anvisa) foi baseada em seu bulário eletrônico e no Dicionário de Especialidades Farmacêuticas e as análises realizadas no software R. RESULTADOS: Foram analisados 1.054 itens de prescrição de 73 pacientes. O gênero feminino foi o mais frequente (52 por cento) e a idade dos pacientes variou de zero a 16 anos. Observou-se que 23,4 por cento dos medicamentos foram prescritos de modo off-label, 12,6 por cento não licenciados e 1,4 por cento foram classificados em ambas as razões; 86 por cento receberam ao menos um item de uso off-label e 67 por cento ao menos um item de uso não licenciado. Os grupos terapêuticos mais prescritos foram os antibacterianos de uso sistêmico, os analgésicos, psicolépticos e antiasmáticos. CONCLUSÃO: Os resultados do presente trabalho confirmam a alta prevalência do uso off-label e não licenciados dos medicamentos em unidade de terapia intensiva pediátrica.

OBJECTIVE: To describe the use and determine the prevalence of off-label and unlicensed drug use prescribing in a pediatric intensive care unit in a Southeastern Brazilian hospital METHODS: Cross-sectional study of inpatients in a pediatric intensive care unit from May 2008 through January 2009. The classification according to the Brazilian regulatory agency (Agência de Vigilância Sanitária - Anvisa) approval criteria was based on the Anvisa electronic package insert list, Pharmaceuticals Dictionary, and the analysis was conducted through R software. RESULTS: We analysed 1,054 prescription items for 73 patients. Females predominated (52 percent), and the patients' age ranged from 0 to 16 years. Among the prescribed items, 23.4 percent were off-label, 12.6 percent were unlicensed, 1.4 percent were both off-label and unlicensed, 86 percent had at least one item off-label, and 67 percent had at least one unlicensed drug. The most frequently prescribed therapeutic groups were systemic anti-bacterial, analgesic, psycholeptic, and antiasmathic agents. CONCLUSION: The current study results confirm the high prevalence of unlicensed and off-label drug use in a pediatric intensive care unit.