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2.
PLoS One ; 18(11): e0294519, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37983228

RESUMO

BACKGROUND: In neonates, uncontrolled pain and opioid exposure are both correlated with short- and long-term adverse events. Therefore, managing pain using opioid-sparing approaches is critical in neonatal populations. Multimodal pain control offers the opportunity to manage pain while reducing short- and long-term opioid-related adverse events. Intravenous (IV) acetaminophen may represent an appropriate adjunct to opioid-based postoperative pain control regimes. However, no trials assess this drug in patients less than 36 weeks post-conceptual age or weighing less than 1500 g. OBJECTIVE: The proposed study aims to determine the feasibility of conducting a randomized control trial to compare IV acetaminophen and fentanyl to a saline placebo and fentanyl for patients admitted to the neonatal intensive care unit (NICU) undergoing major abdominal or thoracic surgery. METHODS AND DESIGN: This protocol is for a single-centre, external pilot randomized controlled trial (RCT). Infants in the NICU who have undergone major thoracic or abdominal surgery will be enrolled. Sixty participants will undergo 1:1 randomization to receive intravenous acetaminophen and fentanyl or saline placebo and fentanyl. After surgery, IV acetaminophen or placebo will be given routinely for eight days (192 hours). Appropriate dosing will be determined based on the participant's gestational age. Patients will be followed for eight days after surgery and will undergo a chart review at 90 days. Primarily feasibility outcomes include recruitment rate, follow-up rate, compliance, and blinding index. Secondary clinical outcomes will be collected as well. CONCLUSION: This external pilot RCT will assess the feasibility of performing a multicenter RCT comparing IV acetaminophen and fentanyl to a saline placebo and fentanyl in NICU patients following major abdominal and thoracic surgery. The results will inform the design of a multicenter RCT, which will have the appropriate power to determine the efficacy of this treatment. TRIAL REGISTRATION: ClinicalTrials.gov NCT05678244, Registered December 6, 2022.


Assuntos
Acetaminofen , Unidades de Terapia Intensiva Neonatal , Recém-Nascido , Humanos , Acetaminofen/uso terapêutico , Analgésicos Opioides/efeitos adversos , Projetos Piloto , Dor Pós-Operatória/tratamento farmacológico , Fentanila/uso terapêutico , Método Duplo-Cego , Ensaios Clínicos Controlados Aleatórios como Assunto , Estudos Multicêntricos como Assunto
3.
Pediatr Res ; 94(5): 1714-1719, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37198403

RESUMO

BACKGROUND: Paracetamol is commonly used for analgesia and patent ductus arteriosus (PDA) treatment in preterm infants. We aimed to evaluate early neurodevelopmental outcomes of extreme preterm infants exposed to paracetamol during their neonatal admission. METHODS: This retrospective cohort study included surviving infants born at <29 weeks gestation, or with a birth weight of <1000 grams. Neurodevelopmental outcomes studied were early cerebral palsy (CP) or high risk of CP diagnosis, Hammersmith Infant Neurological Examination (HINE) score and Prechtl General Movement Assessment (GMA) at 3-4 months corrected age. RESULTS: Two hundred and forty-two infants were included, of which 123 were exposed to paracetamol. After adjusting for birth weight, sex and chronic lung disease, there were no significant associations between paracetamol exposure and early CP or high risk of CP diagnosis (aOR 1.46, 95% CI 0.61, 3.5), abnormal or absent GMA (aOR 0.82, 95% CI 0.37, 1.79) or HINE score (adjusted ß -0.19, 95% CI -2.39, 2.01). Subgroup analysis stratifying paracetamol exposure into <180 mg/kg or ≥180 mg/kg cumulative dose found that neither had significant effects on outcomes. CONCLUSIONS: In this cohort of extreme preterm infants, no significant association was found between exposure to paracetamol during the neonatal admission and adverse early neurodevelopment. IMPACT: Paracetamol is commonly used in the neonatal period for analgesia and patent ductus arteriosus treatment in preterm infants, although prenatal paracetamol use has been associated with adverse neurodevelopmental outcomes. Exposure to paracetamol during the neonatal admission was not associated with adverse early neurodevelopment at 3-4 months corrected age in this cohort of extreme preterm infants. The findings from this observational study is consistent with the small body of literature supporting the lack of association between neonatal paracetamol exposure and adverse neurodevelopmental outcomes in preterm infants.


Assuntos
Permeabilidade do Canal Arterial , Síndrome da Persistência do Padrão de Circulação Fetal , Lactente , Gravidez , Feminino , Recém-Nascido , Humanos , Recém-Nascido Prematuro , Acetaminofen/efeitos adversos , Permeabilidade do Canal Arterial/tratamento farmacológico , Peso ao Nascer , Estudos Retrospectivos , Ibuprofeno/efeitos adversos
4.
J Pediatr ; 259: 113342, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-36806753

RESUMO

OBJECTIVE: To explore the extent and type of pregnancy and lactation data of newly approved prescription drugs and assess whether the presented recommendations are data-driven, as required by the US Food and Drug Administration Pregnancy and Lactation Labeling Rule implemented in 2015. STUDY DESIGN: In this descriptive analysis, we reviewed pregnancy and lactation data of all new molecular entities approved between 2001 and 2020 in their most updated labeling. Information was collected regarding the pregnancy and lactation risk statements, the source of pregnancy and lactation data, and the design and methods of pregnancy and lactation studies in the labeling. RESULTS: Of the 422 new molecular entities, the key advisory statement for use of 133 (32%) drugs in pregnancy and 194 (46%) drugs in lactation were classified as "against use." Less than 2% of all drugs had a key advisory statement that supported their use during pregnancy or lactation. The sources of data regarding use in pregnancy were studies in human and animals in 46 (11%) and 348 (82%) drugs, respectively. For use during lactation, data included studies in human and animals in 23 (5%) and 251 (59%) drugs, respectively. The key advisory recommendation was consistent with the available human information in 4 (8%) drugs in pregnancy and 3 (13%) drugs in lactation. Prescription drug labeling contains limited data to support informed decision-making for the use of prescription drugs during pregnancy/lactation. Close collaboration among stakeholders is required to enhance the availability of data in this population.


Assuntos
Lactação , Medicamentos sob Prescrição , Gravidez , Feminino , Animais , Estados Unidos , Humanos , United States Food and Drug Administration , Aleitamento Materno , Rotulagem de Medicamentos
5.
Neonatology ; 120(1): 81-89, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36502794

RESUMO

INTRODUCTION: Oral ibuprofen is more effective than intravenous (IV) ibuprofen for closure of a patent ductus arteriosus (PDA). This study explored whether higher concentrations of the biologically active S-enantiomer or increased R- to S-conversion following oral dosing could explain this finding. METHODS: Two datasets containing 370 S- and R-ibuprofen concentrations from 95 neonates with PDA treated with oral (n = 27, 28%) or IV ibuprofen were analyzed using nonlinear mixed effects modeling. Concentration-time profiles in typical neonates were explored and compared in different dosing or R- to S-conversion scenarios. RESULTS: Postnatal age (PNA), gestational age (GA), and being small for GA impacted S- and R-ibuprofen clearance. Upon oral dosing, S-ibuprofen concentrations were lower compared to IV ibuprofen for a large part of the dosing interval. We could show that R- to S-conversion will not exceed 45%. Exploration of a 30% presystemic R- to S-conversion resulted in a 25-32% increase in S-ibuprofen exposure following oral administration with AUC72h values varying between 700-2,213 mg*h/L (oral) and 531-1,762 (IV) for the standard or 1,704-2,893 (oral) and 1,295-2,271 mg*h/L (IV) for PNA-based dosing. DISCUSSION: The absence of higher S-ibuprofen concentrations does not support a beneficial concentration-time profile after oral dosing. While a fraction of up to 45% presystemic R- to S-conversion could not be ruled out, the impact of such a low conversion might be only relevant for the standard but not high dosing regimens, considering reported exposure-response targets. Perhaps, the lack of high peak concentrations observed following IV dosing may play a role in the observed effects upon oral dosing.


Assuntos
Permeabilidade do Canal Arterial , Ibuprofeno , Recém-Nascido , Humanos , Ibuprofeno/uso terapêutico , Permeabilidade do Canal Arterial/tratamento farmacológico , Indometacina/uso terapêutico , Recém-Nascido Prematuro , Recém-Nascido de Baixo Peso , Administração Oral
7.
Artigo em Inglês | MEDLINE | ID: mdl-36360641

RESUMO

INTRODUCTION: The use of arginine vasopressin (AVP) and terlipressin to treat hypotension in preterm neonates is increasing. Our aim was to review the available evidence on the efficacy and safety of AVP and terlipressin for use in preterm neonates. METHODS: MEDLINE, EMBASE, the Cochrane Central Register of Controlled Trials, Web of Science, and Google Scholar from inception to September 2021 were searched for studies of AVP and terlipressin in the treatment of hypotension of any cause in preterm neonates. Primary outcomes were improvement in end-organ perfusion and mortality. The risk of bias assessment and certainty of the evidence were performed using appropriate tools. RESULTS: Fifteen studies describing the use of AVP (n = 12) or terlipressin (n = 3) among 148 preterm neonates were included. Certainly, the available evidence for the primary outcome of end-organ perfusion rated as very low. AVP or terlipressin were used to treat 144 and 4 neonates, respectively. Improvement in markers of end-organ perfusion was reported in 143 (99%) neonates treated with AVP and 3 (75%) treated with terlipressin. The mortality rate was 41% (n = 59) and 50% (n = 2) for neonates who received AVP and terlipressin, respectively. Hyponatremia was the most frequently reported adverse event (n = 37, 25%). CONCLUSION: AVP and terlipressin may improve measured blood pressure values and possibly end-organ perfusion among neonates with refractory hypotension. However, the efficacy-safety balance of these drugs should be assessed on an individual basis and as per the underlying cause. Studies on the optimal dosing, efficacy, and safety of AVP and terlipressin in preterm neonates with variable underlying conditions are critically needed.


Assuntos
Hipotensão , Lipressina , Recém-Nascido , Humanos , Terlipressina/uso terapêutico , Lipressina/efeitos adversos , Vasoconstritores/efeitos adversos , Vasopressinas/uso terapêutico , Arginina Vasopressina/uso terapêutico , Hipotensão/tratamento farmacológico
8.
Am J Health Syst Pharm ; 79(22): 2012-2017, 2022 11 07.
Artigo em Inglês | MEDLINE | ID: mdl-35913934

RESUMO

PURPOSE: To describe US drug shortages affecting medications on the 2019 World Health Organization (WHO) Model List of Essential Medicines for Children (EMLc). METHODS: Drug shortage data from January 2014 to December 2019 were obtained from the University of Utah Drug Information Service. Shortage data for drugs on the EMLc were analyzed for the type of drug, American Hospital Formulary Service category, reason for the shortage, duration of the shortage, marketing status (generic vs brand name), and whether the agent was a single- or multisource drug. RESULTS: From 2014 to 2019, a total of 209 drug shortages impacted medications on the EMLc, of which 77 (36.8%) remained unresolved by 2019. Of all active shortages, 13 (6.2%) began before 2014. Resolved shortages had a median duration of 5.9 months (interquartile range [IQR], 3.6-13.2 months) while active shortages had a median duration of 18.3 months (IQR, 10.9-33.5 months; P ≤ 0.0001). The therapeutic categories most impacted by drug shortages were anti-infective agents (27.3%), central nervous system agents (12.9%), and antineoplastic agents (11.0%). The reason for the shortage was not reported in 46.4% of cases. When a reason was provided, the most common reason was manufacturing problems (29.2%) followed by supply/demand mismatch (15.8%). CONCLUSION: US drug shortages affected many medications on the WHO EMLc. Future studies should examine the global shortage climate and implications for patient care.


Assuntos
Anti-Infecciosos , Medicamentos Genéricos , Criança , Estados Unidos , Humanos , Estudos Transversais , Serviços de Informação sobre Medicamentos , Organização Mundial da Saúde
10.
Artigo em Inglês | MEDLINE | ID: mdl-35206317

RESUMO

INTRODUCTION: Paracetamol is the most commonly used antipyretic and analgesic in pregnancy. It is also increasingly used off-label in the neonatal intensive care unit. Despite the frequent use of paracetamol, concerns have been raised regarding the high variability in neonatal dosing regimens and the long-term safety of early life exposure. OBJECTIVE: To investigate the available evidence on the long-term safety of prenatal and neonatal paracetamol exposure. METHODS: We conducted a systematic search of the electronic databases Ovid Medline, Ovid Embase and Web of Science from inception to August 2021 for original research studies of any design that described the use of paracetamol in the prenatal or neonatal (within the first four weeks of life) periods and examined the occurrence of neurodevelopmental, atopic or reproductive adverse outcomes at or beyond birth. RESULTS: We identified 1313 unique articles and included 30 studies in the final review. Of all studies, 27 (90%), two (7%) and one (3%) were on the long-term safety of prenatal, neonatal and both prenatal and neonatal exposure, respectively. Thirteen (46%), 11 (39%) and four (15%) studies examined neurodevelopmental, atopic and reproductive outcomes. Eleven (100%), 11 (100%), and three (27%) studies on prenatal exposure reported adverse neurodevelopmental, atopic and reproductive outcomes. Only one study found a possible correlation between neonatal paracetamol exposure and long-term adverse outcomes. CONCLUSIONS: The available evidence, although limited, suggests a possible association between prenatal paracetamol exposure and an increased risk of neurodevelopmental, atopic and reproductive adverse outcomes. There is an immediate need for robust data on the long-term safety of paracetamol exposure in the prenatal and neonatal periods.


Assuntos
Acetaminofen , Unidades de Terapia Intensiva Neonatal , Acetaminofen/efeitos adversos , Feminino , Humanos , Recém-Nascido , Gravidez , Vitaminas
11.
Arch Dis Child ; 107(1): 86-91, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-33975823

RESUMO

OBJECTIVE: Exploration of a novel therapeutic drug monitoring (TDM) strategy to personalise use of ibuprofen for closure of patent ductus arteriosus (PDA) in preterm neonates. DESIGN: Prospective, single-centre, open-label, pharmacokinetics study in preterm neonates. SETTING: Neonatal intensive care unit at McMaster Children's Hospital. PATIENTS: Neonates with a gestational age ≤28+6 weeks treated with oral ibuprofen for closure of a PDA. METHODS: Population pharmacokinetic parameters, concentration-time profiles and exposure metrics were obtained using pharmacometric modelling and simulation. MAIN OUTCOME MEASURE: Association between ibuprofen plasma concentrations measured at various sampling time points on the first day of treatment and attainment of the target exposure over the first 3 days of treatment (AUC0-72h >900 mg·hour/L). RESULTS: Twenty-three preterm neonates (median birth weight 780 g and gestational age 25.9 weeks) were included, yielding 155 plasma ibuprofen plasma samples. Starting from 8 hours' postdose on the first day, a strong correlation between ibuprofen concentrations and AUC0-72h was observed. At 8 hours after the first dose, an ibuprofen concentration >20.5 mg/L was associated with a 90% probability of reaching the target exposure. CONCLUSION: We designed a novel and practical TDM strategy and have shown that the chance of reaching the target exposure (AUC0-72h >900 mg·hour/L) can be predicted with a single sample collection on the first day of treatment. This newly acquired knowledge can be leveraged to personalise ibuprofen dosing regimens and improve the efficacy of ibuprofen use for pharmacological closure of a PDA.


Assuntos
Anti-Inflamatórios não Esteroides/administração & dosagem , Permeabilidade do Canal Arterial/tratamento farmacológico , Ibuprofeno/administração & dosagem , Doenças do Prematuro/tratamento farmacológico , Administração Oral , Anti-Inflamatórios não Esteroides/farmacocinética , Área Sob a Curva , Monitoramento de Medicamentos/métodos , Feminino , Idade Gestacional , Humanos , Ibuprofeno/farmacocinética , Recém-Nascido , Recém-Nascido Prematuro , Recém-Nascido de muito Baixo Peso , Unidades de Terapia Intensiva Neonatal , Masculino , Estudos Prospectivos
12.
BMJ Paediatr Open ; 5(1): e001067, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34179513

RESUMO

Background: The use of vasoactive agents like arginine vasopressin (AVP) and terlipressin to treat hypotension or persistent pulmonary hypertension in critically ill preterm neonates is increasing. Therefore, a systematic review of the available data on dosing, efficacy and safety of AVP and terlipressin in this patient population appears beneficial. Methods: We will conduct a systematic review of the available evidence on the use of AVP and terlipressin for the treatment of hypotension or persistent pulmonary hypertension in preterm neonates. We will search Ovid MEDLINE, EMBASE, the Cochrane Central Register of Controlled Trials, Web of Science and Google Scholar from inception to March 2021. Two reviewers will independently screen titles and abstracts, review the full text of eligible studies, extract data, assess the risk of bias and judge the certainty of the evidence. Our primary outcome will be an (1) improvement of end-organ perfusion after initiation of AVP or terlipressin and (2) mortality prior to discharge. Our secondary outcomes will include (1) major neurosensory abnormality and (2) the occurrence of adverse events. Discussion: The currently available evidence on the efficacy and safety of AVP and terlipressin in preterm neonates is limited. Yet, evidence on the pharmacology of these drugs and the pathophysiology of vasoplegic shock support the biological plausibility for their clinical effectiveness in this population. Therefore, we aim to address this gap concerning the use of vasopressin and terlipressin among critically ill preterm neonates. Trial registration: This protocol has been submitted for registration to the international database of prospectively registered systematic reviews (PROSPERO, awaiting registration number).


Assuntos
Lipressina , Choque , Humanos , Recém-Nascido , Lipressina/efeitos adversos , Choque/tratamento farmacológico , Revisões Sistemáticas como Assunto , Terlipressina , Vasoconstritores/efeitos adversos , Vasopressinas
13.
Children (Basel) ; 8(3)2021 Feb 25.
Artigo em Inglês | MEDLINE | ID: mdl-33668712

RESUMO

In methadone-exposed preterm neonates, early identification of those at risk of severe neonatal abstinence syndrome (NAS) and use of a methadone dosing regimen that can provide effective and safe drug exposure are two important aspects of optimal care. To this end, we reviewed 17 methadone dosing recommendations in the international guidelines and literature and explored their variability in key dosing strategies. We selected three of the reviewed dosing regimens for their pharmacokinetics (PK) characteristics and their exposure-response relationship in three gestational age groups of preterm neonates (28, 32 and 36 gestational age weeks) at risk for development of severe NAS (defined as an umbilical cord methadone concentration of ≤60 ng/mL, following fetal exposure). We applied early (12 h after birth) vs. typical (36 h after birth) initiation of treatment. We observed that use of universally recommended dosing regimens in preterm neonates can result in under- or over-exposure. Use of a PK-guided dosing regimen resulted in effective target exposures within 24 h after birth with early initiation of treatment (12 h after birth). Future prospective studies should explore the incorporation of umbilical cord methadone concentrations for early identification of preterm neonates at risk of developing severe NAS and investigate the use of a PK-guided methadone dosing regimen, so that treatment failure, prolonged length of stay and opioid over-exposure can be avoided.

14.
CMAJ Open ; 9(1): E252-E260, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33731426

RESUMO

BACKGROUND: Topical nitroglycerin (TNG) ointment has been used for almost 3 decades to treat neonatal peripheral tissue ischemia, but this product is now no longer being produced by its Canadian manufacturer. Our aim was to investigate the efficacy and safety of TNG products in newborns in neonatal intensive care units. METHODS: In this systematic review we searched Embase, CINAHL, MEDLINE, PubMed and Web of Science from inception to April 2020 for studies on the use of TNG products (TNG ointment, TNG spray, glyceryl trinitrate [GTN] patch) for the treatment of neonatal tissue ischemia. We did not apply language or study design limitations. Animal studies and duplicate records were excluded. Two reviewers screened and extracted data. The Tool for Evaluating the Methodological Quality of Case Reports and Case Series was used to assess the risk of bias of individual studies. RESULTS: We included 23 articles (20 case reports, 2 case series and 1 retrospective audit) describing the use of TNG ointment, TNG spray or GTN patch in the treatment of 39 tissue ischemia events in 37 newborns. Twenty-three (62.2%), 12 (32.4%), 1 (2.7%) and 1 (2.7%) infants received TNG ointment, GTN patch, both TNG ointment and GTN patch, and TNG spray, respectively. Nineteen (76.0%) and 7 (53.8%) injuries treated with TNG ointment and GTN patch showed complete recovery, respectively. Two (16.7%) infants treated with GTN patch experienced adverse events (i.e., methemoglobinemia) requiring treatment discontinuation. INTERPRETATION: TNG ointment presents a safe therapeutic modality for salvage therapy of neonatal tissue ischemia. Engagement of stakeholders is essential to address its recent commercial inaccessibility in Canada.


Assuntos
Isquemia/tratamento farmacológico , Nitroglicerina/uso terapêutico , Terapia de Salvação , Vasodilatadores/uso terapêutico , Administração Cutânea , Cateterismo Periférico/efeitos adversos , Humanos , Recém-Nascido , Unidades de Terapia Intensiva Neonatal , Isquemia/etiologia , Nitroglicerina/provisão & distribuição , Pomadas/provisão & distribuição , Vasodilatadores/provisão & distribuição
15.
BMJ Paediatr Open ; 5(1)2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-35404836

RESUMO

BACKGROUND: Impaired adrenal function is a well-described entity in critically ill term and preterm neonates with systemic hypotension. The standard treatment for neonatal hypotension includes volume expanders and vasopressors. Recent evidence supports the use of glucocorticoids for the primary or rescue treatment of neonatal hypotension associated with impaired adrenal function. However, inconsistency regarding the prescribed dosing regimen to provide the best balance between efficacy and safety in this vulnerable population remains an area of concern. METHODS: We will conduct a systematic review and meta-analysis to evaluate low-dosing compared with high-dosing regimens of hydrocortisone for the treatment of hypotension in critically ill term, preterm and very low birth weight neonates. Ovid MEDLINE, EMBASE, the Cochrane Central Register of Controlled Trials and Web of Science will be searched from inception to November 2021. Study screening and selection will be completed as per the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guideline. Our primary outcomes will be (1) an improvement in end-organ perfusion, defined as an increase in blood pressure along with an increase in urine output or a reduction in serum lactate and (2) mortality prior to discharge. Our secondary outcomes will be the development of (1) major neurosensory abnormality, (2) bronchopulmonary dysplasia and (3) the occurrence of adverse events. DISCUSSION: Hydrocortisone may be beneficial in the treatment of hypotension associated with impaired adrenal function among critically ill neonates. However, its optimal dosing to balance desired efficacy with the risk of adverse events is yet to be determined. Our systematic review and meta-analysis aims to address this evidence gap, providing valuable knowledge for a large audience, including guideline developers, policy-makers and clinicians. PROSPERO REGISTRATION NUMBER: This protocol is submitted for registration to the international database of prospectively registered systematic reviews (PROSPERO, awaiting registration number).


Assuntos
Hidrocortisona , Hipotensão , Estado Terminal , Humanos , Hidrocortisona/efeitos adversos , Hipotensão/tratamento farmacológico , Recém-Nascido , Metanálise como Assunto , Revisões Sistemáticas como Assunto
16.
BMJ Paediatr Open ; 4(1): e000907, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33324766

RESUMO

INTRODUCTION: A surge in the use of paracetamol in neonates has resulted in growing concerns about its potential long-term adverse events. In this study, we conduct a systematic review of the long-term safety of prenatal and neonatal exposure to paracetamol in newborn infants. METHODS AND ANALYSIS: We will follow the Joanna Briggs Institute Manual for Evidence Synthesis and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statements to conduct and report this review. We will conduct a systematic search of Embase, MEDLINE, Web of Science and Google Scholar for studies with data on long-term adverse events in neonates that were exposed to paracetamol in the prenatal and/or neonatal period. We will not apply language or design limitations. We will use standardised risk of bias assessment tools to perform a quality assessment of each included article. ETHICS AND DISSEMINATION: This systematic review will only involve access to publicly available data, and therefore ethical approval will not be required. The results of this study will be communicated to the target audience through peer-reviewed publication as well as other knowledge exchange platforms, such as conferences, congresses or symposia. TRIAL REGISTRATION: The protocol for this systematic review is submitted for registration to international database of prospectively registered systematic reviews (PROSPERO, awaiting registration number).

17.
CMAJ Open ; 8(3): E522-E529, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32873580

RESUMO

BACKGROUND: Optimal drug therapy in children relies on the availability of pediatric-specific information. We aimed to describe the current status of pediatric pharmacotherapy data in monographs of new drugs approved by Health Canada. METHODS: In this descriptive analysis, we reviewed the quality and quantity of monographs of new drugs approved by Health Canada between Jan. 1, 2007, and Dec. 31, 2016. We excluded drugs withdrawn from the Canadian market and drugs with primary indications irrelevant to pediatrics. We determined the percentage of included drug monographs that listed pediatric-specific information. RESULTS: During this study period, Health Canada approved 281 drugs, 270 of which met our inclusion criteria. Pediatric-specific information and indication were present in 127 (47.1%) and 75 (27.8%) of the drug monographs, respectively. Of all pediatric age groups, neonates had the lowest number of indications listed in the product monographs (7, 2.6%). Only 9 (60%) oral drugs indicated for children 6 years of age or younger were available in child-friendly, age-appropriate dosage forms. INTERPRETATION: Most of the new drugs approved by Health Canada do not contain pediatric or neonatal indications in their product monographs, and therefore, are used "off-label." Regulatory mechanisms are required to promote both neonatal and pediatric drug development and submission of available pediatric data by manufacturers to Health Canada.


Assuntos
Formas de Dosagem , Aprovação de Drogas/métodos , Desenvolvimento de Medicamentos/métodos , Tratamento Farmacológico/métodos , Pediatria/métodos , Canadá , Criança , Pré-Escolar , Indústria Farmacêutica , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Uso Off-Label
18.
Br J Clin Pharmacol ; 85(6): 1348-1356, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30805946

RESUMO

AIMS: A dramatic increase in newborn infants with neonatal abstinence syndrome has been observed and these neonates are frequently treated with complex methadone dosing schemes to control their withdrawal symptoms. Despite its abundant use, hardly any data on the pharmacokinetics (PK) of methadone is available in preterm neonates. Therefore we investigated developmental PK of methadone and evaluated current dosing strategies and possible simplification in this vulnerable population. METHODS: A single-centre open-label prospective study was performed to collect PK data after a single oral dose of methadone in preterm neonates. A population PK model was built to characterize developmental PK of (R)- and (S)-methadone. Model-based simulations were performed to identify a simplified dosing strategy to reach and maintain target methadone exposure. RESULTS: A total of 121 methadone concentrations were collected from 31 preterm neonates. A one-compartment model with first order absorption and elimination kinetics best described PK data for (R)- and (S)-methadone. Clearance increases with advancing gestational age and differs between R- and S-enantiomer, being slightly higher for the former (0.244 vs 0.167 L/h). Preterm neonates reached target exposure after 48 hours with currently used dosing schedules. Output from simulations revealed that target exposures can be achieved with a simplified dosing strategy during the first 4 days of treatment. CONCLUSION: Methadone clearance in preterm neonates increases with advancing gestational age and its disposition is influenced by its chirality. Simulations that account for developmental PK changes indicate a shorter methadone dosing strategy can maintain target exposure to control withdrawal symptoms.


Assuntos
Analgésicos Opioides/administração & dosagem , Cálculos da Dosagem de Medicamento , Recém-Nascido Prematuro , Metadona/administração & dosagem , Modelos Biológicos , Síndrome de Abstinência Neonatal/tratamento farmacológico , Tratamento de Substituição de Opiáceos , Administração Oral , Adolescente , Adulto , Fatores Etários , Analgésicos Opioides/efeitos adversos , Analgésicos Opioides/sangue , Analgésicos Opioides/farmacocinética , Feminino , Idade Gestacional , Humanos , Recém-Nascido , Masculino , Metadona/efeitos adversos , Metadona/sangue , Metadona/farmacocinética , Síndrome de Abstinência Neonatal/sangue , Síndrome de Abstinência Neonatal/diagnóstico , Síndrome de Abstinência Neonatal/etiologia , Tratamento de Substituição de Opiáceos/efeitos adversos , Estudos Prospectivos , Resultado do Tratamento , Adulto Jovem
19.
Neonatology ; 115(2): 108-115, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30384374

RESUMO

BACKGROUND: Prescription drug shortages have increased significantly during the past two decades and also impact drugs used in critical care and pediatrics. OBJECTIVES: To analyze drug shortages affecting medications used in neonatal intensive care units (NICUs). METHODS: Drug shortage data for the top 100 NICU drugs were retrieved from the University of Utah Drug Information Service from 2001 to 2016. Data were analyzed focusing on drug class, formulation, reason for shortage, and shortage duration. RESULTS: Seventy-four of the top 100 NICU drugs were impacted by 227 shortages (10.3% of total shortages). Twenty-eight (12.3%) shortages were unresolved as of December 2016. Resolved shortages had a median duration of 8.8 months (interquartile range 3.6-21.3), and generic drugs were involved in 175 (87.9%). An alternative agent was available for 171 (85.8%) drugs but 120 (70.2%) of alternatives were also affected by shortages. Parenteral drugs were involved in 172 (86.4%) shortages, with longer durations than nonparenteral drugs (9.9 vs. 6.4 months, p = 0.022). The most common shortage reason was manufacturing problems (32.2%). CONCLUSIONS: Drug shortages affected many agents used in NICUs, which can have quality and safety implications for patient care, especially in extremely low birth weight infants. Neonatologists must be aware of current shortages and implement mitigation strategies to optimize patient care.


Assuntos
Medicamentos Genéricos/provisão & distribuição , Unidades de Terapia Intensiva Neonatal/estatística & dados numéricos , Terapia Intensiva Neonatal/normas , Medicamentos sob Prescrição/provisão & distribuição , Humanos , Recém-Nascido , Unidades de Terapia Intensiva Neonatal/tendências , Terapia Intensiva Neonatal/organização & administração , Neonatologistas , Estados Unidos
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