Drug-induced Adverse Events

Long-term follow-up of chemoimmunotherapy with rituximab, oxaliplatin, cytosine arabinoside, dexamethasone (ROAD) in patients with relapsed CD20+ B-cell non-Hodgkin lymphoma: Results of a study of the Mayo Clinic Cancer Center Research Consortium ...
Long-term follow-up of chemoimmunotherapy with rituximab, oxaliplatin, cytosine arabinoside, dexamethasone (ROAD) in patients with relapsed CD20+ B-cell non-Hodgkin lymphoma: Results of a study of the Mayo Clinic Cancer Center Research Consortium (MCCRC) MC0485 now known as academic and community cancer research united (ACCRU).
Am J Hematol. 2017 Oct;92(10):1004-1010
Authors: Witzig TE, Johnston PB, LaPlant BR, Kurtin PJ, Pederson LD, Moore DF, Nabbout NH, Nikcevich DA, Rowland KM, Grothey A
Abstract
Patients with relapsed aggressive non-Hodgkin lymphoma (NHL) are often treated with platinum-based chemoimmunotherapy regimens in preparation for autologous stem cell transplant. We sought to reduce toxicity and maintain efficacy by using oxaliplatin with rituximab, cytarabine and dexamethasone (ROAD) in a phase II clinical trial in patients who had relapsed after one prior regimen. ROAD was delivered q21 days and consisted of rituximab 375 mg/m(2) IV weekly x 4 doses (cycle 1 only); dexamethasone 40 mg PO/IV d2 - 5; oxaliplatin 130 mg/m(2) IV day 2; cytarabine 2000 mg/m(2) IV × two doses on days 2 to 3; and pegfilgrastim 6 mg SC on day 4. Forty-five eligible patients were accrued between 2006 and 2008. Patient characteristics were a median age of 69 years; 96% had received prior rituximab; 53% were within one year of diagnosis. The median number of cycles received was 2 (range, 1-6). Forty-four % received ROAD as an outpatient. The overall response rate was 71% with 27% (12/45) CR and 44% (20/45) PR. Forty-four % (20/45) of all patients and 69% (18/26) of patients whom responded after 2 cycles proceeded to transplant. Median overall survival was 26 mos (95% CI: 7.3 mos-not reached) and median progression-free survival was 11 mos (95% CI: 6-104 mos). There was no grade 3/4 nephrotoxicity; the rate of grade 3/4 neuropathy was 4%. Forty-two percent of all patients and 69% of patients transplanted remain alive at 5 years. ROAD represents an acceptable salvage therapeutic option for patients with relapsed aggressive NHL.
PMID: 28614905 [PubMed - indexed for MEDLINE]
Impact of comorbidities on outcomes of elderly patients with diffuse large B-cell lymphoma.
Impact of comorbidities on outcomes of elderly patients with diffuse large B-cell lymphoma.
Am J Hematol. 2017 Oct;92(10):989-996
Authors: Saygin C, Jia X, Hill B, Dean R, Pohlman B, Smith MR, Jagadeesh D
Abstract
International prognostic index (IPI) has remained the primary prognostic tool in diffuse large B cell lymphoma (DLBCL) for more than 20 years. Even though the disease is more common in older population, the impact of comorbidities, dose reductions, and treatment-related adverse events (TAEs) on the outcome in elderly DLBCL patients has not been well established. We studied 413 consecutive patients aged ≥ 60 years who were treated at the Cleveland Clinic. The median age at diagnosis was 69 years, 58% of patients had high IPI score, and 85% had low Charlson comorbidity index (CCI). Forty percent of patients required dose reductions during treatment, 78% achieved CR, and 70% experienced at least one grade II-IV TAE. High IPI score, high CCI, reduced dose chemotherapy, TAE, and hospitalization were significant predictors of death and relapse. In multivariable analysis, high IPI and CCI were independent predictors of overall and progression free survival. A simple model combining IPI and CCI could reliably distinguish three prognostically separate risk groups. Our results suggest that incorporation of CCI in current prognostic models can improve prognostication of older DLBCL patients and CCI might be a valuable tool in evaluating the eligibility of older patients for clinical trial enrollment.
PMID: 28612386 [PubMed - indexed for MEDLINE]
Association of Adverse Events With Antibiotic Use in Hospitalized Patients.
Association of Adverse Events With Antibiotic Use in Hospitalized Patients.
JAMA Intern Med. 2017 Sep 01;177(9):1308-1315
Authors: Tamma PD, Avdic E, Li DX, Dzintars K, Cosgrove SE
Abstract
Importance: Estimates of the incidence of overall antibiotic-associated adverse drug events (ADEs) in hospitalized patients are generally unavailable.
Objective: To describe the incidence of antibiotic-associated ADEs for adult inpatients receiving systemic antibiotic therapy.
Design, Setting, and Participants: Retrospective cohort of adult inpatients admitted to general medicine wards at an academic medical center.
Exposures: At least 24 hours of any parenteral or oral antibiotic therapy.
Main Outcomes and Measures: Medical records of 1488 patients were examined for 30 days after antibiotic initiation for the development of the following antibiotic-associated ADEs: gastrointestinal, dermatologic, musculoskeletal, hematologic, hepatobiliary, renal, cardiac, and neurologic; and 90 days for the development of Clostridium difficile infection or incident multidrug-resistant organism infection, based on adjudication by 2 infectious diseases trained clinicians.
Results: In 1488 patients, the median age was 59 years (interquartile range, 49-69 years), and 758 (51%) participants were female. A total of 298 (20%) patients experienced at least 1 antibiotic-associated ADE. Furthermore, 56 (20%) non-clinically indicated antibiotic regimens were associated with an ADE, including 7 cases of C difficile infection. Every additional 10 days of antibiotic therapy conferred a 3% increased risk of an ADE. The most common ADEs were gastrointestinal, renal, and hematologic abnormalities, accounting for 78 (42%), 45 (24%), and 28 (15%) 30-day ADEs, respectively. Notable differences were identified between the incidence of ADEs associated with specific antibiotics.
Conclusions and Relevance: Although antibiotics may play a critical role when used appropriately, our findings underscore the importance of judicious antibiotic prescribing to reduce the harm that can result from antibiotic-associated ADEs.
PMID: 28604925 [PubMed - indexed for MEDLINE]
Degarelix versus luteinizing hormone-releasing hormone agonists for the treatment of prostate cancer.
Degarelix versus luteinizing hormone-releasing hormone agonists for the treatment of prostate cancer.
Expert Opin Pharmacother. 2017 Jun;18(8):825-832
Authors: Clinton TN, Woldu SL, Raj GV
Abstract
INTRODUCTION: Androgen deprivation therapy (ADT) is the mainstay for advanced, hormone-sensitive prostate cancer, and options include surgical castration, luteinizing hormone-releasing hormone (LHRH) agonist, and more recently, gonadotropin releasing hormone (GnRH) antagonist therapy. Our understanding of the mechanisms and adverse effects of ADT has increased substantially, including the class-specific adverse effects of ADT. Areas covered: This review will summarize the pharmacodynamic and pharmacokinetic properties of the GnRH antagonist degarelix and its role in the management of advanced prostate cancer, the clinical evidence supporting its regulatory approval, as well as potential benefits and disadvantages over traditional LHRH agonist therapy. Expert opinion: Degarelix represents a newer class of ADT that results in a rapid and reliable decline in serum testosterone, a quality that makes it particularly advantageous in men presenting with symptomatic, hormone-sensitive prostate cancer. Due to differences in mechanism of action, there is observational data suggesting a potential cardiovascular and even oncologic benefit over traditional LHRH agonist therapy. Further research is ongoing to more clearly define this potential benefit.
PMID: 28480768 [PubMed - indexed for MEDLINE]
PDC-SGB: Prediction of effective drug combinations using a stochastic gradient boosting algorithm.
PDC-SGB: Prediction of effective drug combinations using a stochastic gradient boosting algorithm.
J Theor Biol. 2017 Mar 21;417:1-7
Authors: Xu Q, Xiong Y, Dai H, Kumari KM, Xu Q, Ou HY, Wei DQ
Abstract
Combinatorial therapy is a promising strategy for combating complex diseases by improving the efficacy and reducing the side effects. To facilitate the identification of drug combinations in pharmacology, we proposed a new computational model, termed PDC-SGB, to predict effective drug combinations by integrating biological, chemical and pharmacological information based on a stochastic gradient boosting algorithm. To begin with, a set of 352 golden positive samples were collected from the public drug combination database. Then, a set of 732 dimensional feature vector involving biological, chemical and pharmaceutical information was constructed for each drug combination to describe its properties. To avoid overfitting, the maximum relevance & minimum redundancy (mRMR) method was performed to extract useful ones by removing redundant subsets. Based on the selected features, the three different type of classification algorithms were employed to build the drug combination prediction models. Our results demonstrated that the model based on the stochastic gradient boosting algorithm yield out the best performance. Furthermore, it is indicated that the feature patterns of therapy had powerful ability to discriminate effective drug combinations from non-effective ones. By analyzing various features, it is shown that the enriched features occurred frequently in golden positive samples can help predict novel drug combinations.
PMID: 28099868 [PubMed - indexed for MEDLINE]
Blocking sense-strand activity improves potency, safety and specificity of anti-hepatitis B virus short hairpin RNA.
Blocking sense-strand activity improves potency, safety and specificity of anti-hepatitis B virus short hairpin RNA.
EMBO Mol Med. 2016 09;8(9):1082-98
Authors: Michler T, Große S, Mockenhaupt S, Röder N, Stückler F, Knapp B, Ko C, Heikenwalder M, Protzer U, Grimm D
Abstract
Hepatitis B virus (HBV) is a promising target for therapies based on RNA interference (RNAi) since it replicates via RNA transcripts that are vulnerable to RNAi silencing. Clinical translation of RNAi technology, however, requires improvements in potency, specificity and safety. To this end, we systematically compared different strategies to express anti-HBV short hairpin RNA (shRNA) in a pre-clinical immunocompetent hepatitis B mouse model. Using recombinant Adeno-associated virus (AAV) 8 vectors for delivery, we either (i) embedded the shRNA in an artificial mi(cro)RNA under a liver-specific promoter; (ii) co-expressed Argonaute-2, a rate-limiting cellular factor whose saturation with excess RNAi triggers can be toxic; or (iii) co-delivered a decoy ("TuD") directed against the shRNA sense strand to curb off-target gene regulation. Remarkably, all three strategies minimised adverse side effects as compared to a conventional shRNA vector that caused weight loss, liver damage and dysregulation of > 100 hepatic genes. Importantly, the novel AAV8 vector co-expressing anti-HBV shRNA and TuD outperformed all other strategies regarding efficiency and persistence of HBV knock-down, thus showing substantial promise for clinical translation.
PMID: 27473329 [PubMed - indexed for MEDLINE]
("drug-induced" OR "drug-related") AND ("adverse events" OR "side effects" OR "side-effects"); +13 new citations
13 new pubmed citations were retrieved for your search. Click on the search hyperlink below to display the complete search results:
("drug-induced" OR "drug-related") AND ("adverse events" OR "side effects" OR "side-effects")
These pubmed results were generated on 2017/09/24
PubMed comprises more than millions of citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
The importance of pharmacoepidemiology in pregnancy-implications for safety.
The importance of pharmacoepidemiology in pregnancy-implications for safety.
Expert Opin Drug Saf. 2017 Oct;16(10):1181-1190
Authors: Benevent J, Montastruc F, Damase-Michel C
Abstract
INTRODUCTION: Prescription of medications to pregnant women is usually a challenge as the drug benefit has to be considered regarding its potential adverse effects. As medication use is common in pregnant women, by chance or necessity, it gives the opportunity to evaluate the consequences of prenatal drug exposure in real life through pharmacoepidemiologic studies. Area covered: Data sources are numerous. Some of them have been created for the particular purpose of assessing medications during pregnancy. Augmented databases enable the study of delayed effects in late childhood and provide information on potential confounders. Each data source exhibits strengths and weaknesses. Several designs can be used to assess the safety of medications during pregnancy. Innovative designs have been developed in order to bypass major limits of classical methods. Expert opinion: An efficient system could follow up each pregnant woman, who had taken a medication, and consider her as a precious information for the knowledge of drug potential adverse actions against the child, who must be followed up to identify long term-effects. The diversity of data sources and approaches of pharmacoepidemiologic studies, the implementation of international networks as well as the improvement of adverse signal detection are the keystones of such an evaluation.
PMID: 28777918 [PubMed - indexed for MEDLINE]
Exploring the potential for using drug indications to prevent look-alike and sound-alike drug errors.
Exploring the potential for using drug indications to prevent look-alike and sound-alike drug errors.
Expert Opin Drug Saf. 2017 Oct;16(10):1103-1109
Authors: Seoane-Vazquez E, Rodriguez-Monguio R, Alqahtani S, Schiff G
Abstract
BACKGROUND: Look-alike, sound-alike (LASA) drug names are a cause of medication errors with resulting patient harm and healthcare costs. This study assessed to which extent the use of the generic drug name, therapeutic class, health problem, and the U.S. Food and Drug Administration (FDA)-approved indications might be used to differentiate LASA drug pairs.
RESEARCH DESIGN AND METHODS: We collected information about LASA drug pairs reported by the FDA to have look-alike sound-alike similarities. To assess potential for differentiating LASA drug pairs, we compared the following drug characteristics: generic name, therapeutic class, health problem, and FDA-approved indication.
RESULTS: For the 33 FDA reported LASA drug pairs we identified a total of 432 FDA-approved indications. Using the generic name, therapeutic class, health problem and drug indication we were able to differentiate 8 (24.2%), 24 (72.7%), 25 (75.8%) and 26 (78.8%), respectively of the 33 LASA drug pairs. Using the generic name, therapeutic class, and health problem we were able to distinguish 31 (7.2%), 212 (49.1%), and 269 (62.3%), respectively of the 432 FDA-approved indications for the LASA drug pairs.
CONCLUSIONS: Including the FDA-approved indication in the drug prescription may be used to differentiate LASA drug pairs and thus, prevent wrong drug medication errors.
PMID: 28724335 [PubMed - indexed for MEDLINE]
Adverse drug events-Analysis of a decade. A Portuguese case-study, from 2004 to 2013 using hospital database.
Adverse drug events-Analysis of a decade. A Portuguese case-study, from 2004 to 2013 using hospital database.
PLoS One. 2017;12(6):e0178626
Authors: Scripcaru G, Mateus C, Nunes C
Abstract
PURPOSE: The goal of this study was to characterise adverse drug events (ADE), including both adverse drug reaction (ADR) and accidental poisoning by drugs (AP), considering age, gender, length of stay (LOS), number of deaths and year, during the period 2004-2013. Additionally distributions of the ten's most frequent ADR and AP were characterized, considering age-group and gender.
METHODS: A retrospective descriptive nationwide study was conducted, based on the hospital discharges database in Portugal from 2004 to 2013, using ICD-9. Events were identified based on the following codes: from E930 to E949.9 and from E850 to E858.9.
RESULTS: A total of 9 320 076 patients were discharged within this period, with 133 688 patients (1.46%) having at least one ADE, 4% of them related with AP. The mean age of these patients was 63.79 years (SD 21.31), 54.50% were female and the mean LOS was 14.05 days (SD 22.19). Patient with AP had a mean age of 41.06 years (SD 34.05), 54.70% were female and LOS was 7.15 days (SD 19.42). We have identified 10.691 deaths that represent 8.00% from the total of patients with an ADE. The patients above 65 years were more affected by ADR and children below 18 were more affected by AP.
CONCLUSION: In the last decade an increasing trend of ADR were observed and an AP pattern relatively stable. Elderly people and children were the age groups most affected. Antibiotics (in ADR) and benzodiazepine-based tranquilizers (in AP) were the major problems. This is a huge, increasing and challenging problem. Further research, using individual and contextual risk factors should be developed to understand spatiotemporal variability, promoting tailored interventions, within and across countries.
PMID: 28575013 [PubMed - indexed for MEDLINE]
Assays for Infliximab Drug Levels and Antibodies: A Matter of Scales and Categories.
Assays for Infliximab Drug Levels and Antibodies: A Matter of Scales and Categories.
Scand J Immunol. 2017 Sep;86(3):165-170
Authors: Bader LI, Solberg SM, Kaada SH, Bolstad N, Warren DJ, Gavasso S, Gjesdal CG, Vedeler CA
Abstract
Immunogenicity is a frequent cause of secondary non-response to tumour necrosis factor (TNF) inhibitors. Drug level measurement and detection of antidrug antibodies have been shown to be cost effective and clinically relevant, and a large number of assays are available for these purposes. It is, however, difficult to compare assays and translate results into clinical meaningful information due to different methodological approaches and a lack of assay standardization. We have analysed infliximab drug levels and antidrug antibodies in 107 patient samples using enzyme-linked immunoassays (ELISA), immunofluorometric assays (IFMA) and reporter-gene assays (RGA). The RGA gave the lowest results for drug levels, whereas the IFMA detected the highest number of antidrug antibody positive sera. Applying individualized therapeutic ranges to each assay resulted in agreement among all three assays in 74% of samples for drug levels and 98% of samples for antidrug antibodies. We found that TNF inhibitor monitoring assays measure on different scales and that the agreement between quantitative results is limited. However, interassay differences can partially be overcome by assay-individualized translations of quantities into categories, which also is necessary for a meaningful clinical application. Our data demonstrate that assays should not be used interchangeably and that direct comparison of quantitative drug levels obtained with different assays should be avoided.
PMID: 28561325 [PubMed - indexed for MEDLINE]
Influence of CYP2C19*2/*17 genotype on adverse drug reactions of voriconazole in patients after allo-HSCT: a four-case report.
Influence of CYP2C19*2/*17 genotype on adverse drug reactions of voriconazole in patients after allo-HSCT: a four-case report.
J Cancer Res Clin Oncol. 2017 Jun;143(6):1103-1106
Authors: Beata S, Donata UK, Jarosław D, Tomasz W, Anna WH
Abstract
PURPOSE: Voriconazole (VCZ) is a new-generation triazol antifungal agent. CYP2C19 mutations have been reported to cause variability in VCZ pharmacokinetics, and thus lead to undesirable effects of pharmacotherapy. We observed four Caucasian patients who underwent allogenic hematopoietic stem cell transplantation, treated with voriconazole for prevention of fungal infections, to establish the impact of CYP2C19*2/*17 genotype on side effect occurrence.
METHODS: Genetic testing for CYP2C19 allele*2 and*17 was performed using two PCR-RFLP methods established by Goldstein and Blaisdell, and Sim et al. All four patients presented CYP2C19*2/*17 genotype.
RESULTS: The patients suffered from gastrointestinal, dermatological, neurological, hepatobiliary and renal adverse drug reactions (ADR). ADR could be best described by the use of VCZ. Other drugs potentially causing side effects were also taken into consideration. The presented complications were temporary and did not force dosage regimen adjustments or discontinuation of pharmacotherapy. After 2 months, the patients were discharged from hospital.
CONCLUSIONS: Drug-drug interactions and ADR may occur even if an agent is used for prophylaxis only. We, therefore, should use any available tools for pharmacotherapy optimization-also genetic testing.
PMID: 28247033 [PubMed - indexed for MEDLINE]
The Placebo and Nocebo Phenomena: Their Clinical Management and Impact on Treatment Outcomes.
The Placebo and Nocebo Phenomena: Their Clinical Management and Impact on Treatment Outcomes.
Clin Ther. 2017 Mar;39(3):477-486
Authors: Chavarria V, Vian J, Pereira C, Data-Franco J, Fernandes BS, Berk M, Dodd S
Abstract
PURPOSE: This overview focuses on placebo and nocebo effects in clinical trials and routine care. Our goal was to propose strategies to improve outcomes in clinical practice, maximizing placebo effects and reducing nocebo effects, as well as managing these phenomena in clinical trials.
METHODS: A narrative literature search of PubMed was conducted (January 1980-September 2016). Systematic reviews, randomized controlled trials, observational studies, and case series that had an emphasis on placebo or nocebo effects in clinical practice were included in the qualitative synthesis. Search terms included: placebo, nocebo, clinical, clinical trial, clinical setting, placebo effect, nocebo effect, adverse effects, and treatment outcomes. This search was augmented by a manual search of the references of the key articles and the related literature.
FINDINGS: Placebo and nocebo effects are psychobiological events imputable to the therapeutic context. Placebo is defined as an inert substance that provokes perceived benefits, whereas the term nocebo is used when an inert substance causes perceived harm. Their major mechanisms are expectancy and classical conditioning. Placebo is used in several fields of medicine, as a diagnostic tool or to reduce drug dosage. Placebo/nocebo effects are difficult to disentangle from the natural course of illness or the actual effects of a new drug in a clinical trial. There are known strategies to enhance clinical results by manipulating expectations and conditioning.
IMPLICATIONS: Placebo and nocebo effects occur frequently and are clinically significant but are underrecognized in clinical practice. Physicians should be able to recognize these phenomena and master tactics on how to manage these effects to enhance the quality of clinical practice.
PMID: 28237673 [PubMed - indexed for MEDLINE]
Interactions Between Therapeutic Proteins and Small Molecules: The Shared Role of Perpetrators and Victims.
Interactions Between Therapeutic Proteins and Small Molecules: The Shared Role of Perpetrators and Victims.
Clin Pharmacol Ther. 2017 Oct;102(4):649-661
Authors: Cavaco M, Goncalves J
Abstract
Therapeutic proteins (TPs) are becoming increasingly important as therapeutic agents. A consequence of expanding their clinical indications is coadministration with well-established small-molecule drugs (sMDs), which could lead to unpredictable effects. According to the existing regulatory guidance, the development of an sMD includes the evaluation of potential drug-drug interactions (DDIs). For TPs, only a few drug interaction studies have been published. Limited clinically relevant models, long half-lives, and complex elimination pathways are among the associated difficulties.
PMID: 28002637 [PubMed - indexed for MEDLINE]
Comparative Assessment of Off-label and Unlicensed Drug Prescriptions in Children: FDA Versus ANSM Guidelines.
Comparative Assessment of Off-label and Unlicensed Drug Prescriptions in Children: FDA Versus ANSM Guidelines.
Clin Ther. 2016 Aug;38(8):1833-44
Authors: Berdkan S, Rabbaa L, Hajj A, Eid B, Jabbour H, Osta NE, Karam L, Khabbaz LR
Abstract
PURPOSE: The main objectives of this study were to assess the incidence of off-label (OL) and/or unlicensed (UL) prescriptions in a sample of pediatric Lebanese patients by using US Food and Drug Administration (FDA) and the French Medical Regulatory Authority (ANSM) regulations. The goal was to analyze the divergences between regulations and to identify those drugs most commonly involved in OL-UL utilization.
METHODS: This study was a retrospective analysis (500 pediatric files) conducted in a Lebanese University hospital in 3 pediatric wards (chronic diseases, acute diseases, and the pediatric intensive care unit).
FINDINGS: The frequency of OL-UL drug use was significantly different between pediatric wards (P < 0.001), with the highest incidence occurring in the intensive care unit. The most frequent OL-UL prescriptions occurred with cancer (oncology) admissions. Age was significantly related to OL-UL frequency (highest incidence in children aged between 0 and 1 year). The number of drugs prescribed per patient ranged between 1 and 20 (mean [SD], 4.13 [2.6]). The incidence of OL-UL prescriptions was significantly higher in patients treated with a greater number of medicines (P < 0.001). Overall, 58.9% of drug prescriptions were authorized according to ANSM and 50.7% according to FDA regulations; 11.1% (ANSM) and 15.8% (FDA) were UL, and 30.2% (ANSM) and 33.5% (FDA), respectively, were OL use (where OL for the indication were the most common). The highest percentage of OL-UL prescriptions was seen with the following groups: blood and blood-forming organs, genitourinary system, and sex hormones. Divergence between FDA and ANSM was mainly observed for OL medicines. UL prescriptions assessed according to both regulations showed similar results.
IMPLICATIONS: This study highlights the need for prescribers to continuously examine updates to official regulations to avoid using an OL-UL drug whenever possible. It also calls for better harmonization between worldwide official guidelines concerning drugs used in children to reduce risk factors for adverse drug reactions.
PMID: 27392716 [PubMed - indexed for MEDLINE]
Loss of confidence in vaccines following media reports of infant deaths after hepatitis B vaccination in China.
Loss of confidence in vaccines following media reports of infant deaths after hepatitis B vaccination in China.
Int J Epidemiol. 2016 Apr;45(2):441-9
Authors: Yu W, Liu D, Zheng J, Liu Y, An Z, Rodewald L, Zhang G, Su Q, Li K, Xu D, Wang F, Yuan P, Xia W, Ning G, Zheng H, Chu Y, Cui J, Duan M, Hao L, Zhou Y, Wu Z, Zhang X, Cui F, Li L, Wang H
Abstract
BACKGROUND: China reduced hepatitis B virus (HBV) infection by 90% among children under 5 years old with safe and effective hepatitis B vaccines (HepB). In December 2013, this success was threatened by widespread media reports of infant deaths following HepB administration. Seventeen deaths and one case of anaphylactic shock following HBV vaccination had been reported.
METHODS: We conducted a telephone survey to measure parental confidence in HepB in eleven provinces at four points in time; reviewed maternal HBV status and use of HepB for newborns in birth hospitals in eight provinces before and after the event; and monitored coverage with hepatitis B vaccine and other programme vaccines in ten provinces.
RESULTS: HepB from the implicated company was suspended during the investigation, which showed that the deaths were not caused by HepB vaccination. Before the event, 85% respondents regarded domestic vaccines as safe, decreasing to 26.7% during the event. During the height of the crisis, 30% of parents reported being hesitant to vaccinate and 18.4% reported they would refuse HepB. Use of HepB in the monitored provinces decreased by 18.6%, from 53 653 doses the week before the event to 43 688 doses during the week that Biokangtai HepB was suspended. Use of HepB within the first day of life decreased by 10% among infants born to HBsAg-negative mothers, and by 6% among infants born to HBsAg-positive mothers. Vaccine refusal and HepB birth dose rates returned to baseline within 2 months; confidence increased, but remained below baseline.
CONCLUSIONS: The HBV vaccine event resulted in the suspension of a safe vaccine, which was associated with a decline of parental confidence, and refusal of vaccination. Suspension of a vaccine can lead to loss of confidence that is difficult to recover. Timely and credible investigation, accompanied by proactive outreach to stakeholders and the media, may help mitigate negative impact of future coincidental adverse events following immunization.
PMID: 27174834 [PubMed - indexed for MEDLINE]
A model for measuring the health burden of classic congenital adrenal hyperplasia in adults.
A model for measuring the health burden of classic congenital adrenal hyperplasia in adults.
Clin Endocrinol (Oxf). 2016 Sep;85(3):361-98
Authors: Hummel SR, Sadler S, Whitaker MJ, Ara RM, Dixon S, Ross RJ
Abstract
AIM: Patients with classic congenital adrenal hyperplasia (CAH) have poor health outcomes. In the absence of a comprehensive observational study, this manuscript provides a model to estimate the lifetime disease burden of adults with classic CAH.
METHODS: The model, built in Excel, comprises subdomains addressing the health consequences of CAH and synthesises evidence from clinical and epidemiological studies on health outcomes.
RESULTS: The model estimates that adults with classic CAH will implement 'sick day rules' (doubling or tripling glucocorticoid and/or use of parenteral therapy) 171 times over their lifetime and attend hospital for adrenal crisis on 11 occasions. In a population of 1000, over 200 will die of a condition complicated by adrenal crisis resulting, on average, in a loss of 7 years of life. Patients with CAH may also suffer from excess CVD events. Treatment with glucocorticoids almost doubles the risk of bone fractures in patients with CAH compared to the general population, leading on average to an additional 0·8 fractures per patient with CAH over their lifetime.
CONCLUSIONS: The disease burden model highlights gaps in evidence, particularly regarding intensity of care and adrenal crisis, and the relationship between control of CAH and risks of CVD, osteoporosis, diabetes and infertility. The model can be used for research on the impact of new clinical pathways and therapeutic interventions in terms of clinical events and cost.
PMID: 26991412 [PubMed - indexed for MEDLINE]
Pediatric lung transplantation.
Pediatric lung transplantation.
J Thorac Dis. 2017 Aug;9(8):2675-2683
Authors: Benden C
Abstract
Pediatric lung transplantation has been undertaken since the 1980s, and it is today considered an accepted therapy option in carefully selected children with end-stage pulmonary diseases, providing carefully selected children a net survival benefit and improved health-related quality of life. Nowadays, >100 pediatric lung transplants are done worldwide every year. Here, specific pediatric aspects of lung transplantation are reviewed such as the surgical challenge, effects of immunosuppression on the developing pediatric immune system, and typical infections of childhood, as it is vital to comprehend that children undergoing lung transplants present a real challenge as children are not 'just small adults'. Further, an update on the management of the pediatric lung transplant patient is provided in this review, and future challenges outlined. Indications for lung transplantation in children are different compared to adults, the most common being cystic fibrosis (CF). However, the primary diagnoses leading to pediatric lung transplantation vary considerably by age group. Furthermore, there are regional differences regarding the primary indication for lung transplantation in children. Overall, early referral, careful patient selection and appropriate timing of listing are crucial to achieve real survival benefit. Although allograft function is to be preserved, immunosuppressant-related side effects are common in children post-transplantation. Strategies need to be put into practice to reduce drug-related side effects through careful therapeutic drug monitoring and lowering of target levels of immunosuppression, to avoid acute-reversible and chronic-irreversible renal damage. Instead of a "one fits all approach", tailored immunosuppression and a personalized therapy is to be advocated, particularly in children. Further, infectious complications are a common in children of all ages, accounting for almost 50% of death in the first year post-transplantation. However, chronic lung allograft dysfunction (CLAD) remains the major obstacle for improved long-term survival.
PMID: 28932575 [PubMed]
Transaminase Levels and Hepatic Events During Tocilizumab Treatment: Pooled Analysis of Long-Term Clinical Trial Safety Data in Rheumatoid Arthritis.
Transaminase Levels and Hepatic Events During Tocilizumab Treatment: Pooled Analysis of Long-Term Clinical Trial Safety Data in Rheumatoid Arthritis.
Arthritis Rheumatol. 2017 Sep;69(9):1751-1761
Authors: Genovese MC, Kremer JM, van Vollenhoven RF, Alten R, Scali JJ, Kelman A, Dimonaco S, Brockwell L
Abstract
OBJECTIVE: To investigate liver enzyme abnormalities and hepatic adverse events (AEs) during long-term tocilizumab treatment for rheumatoid arthritis in clinical trials.
METHODS: Data were pooled from patients who received intravenous tocilizumab (4, 8, or 10 mg/kg with or without disease-modifying antirheumatic drugs [DMARDs]) in phase III or IV clinical trials, long-term extensions, and a pharmacology study. Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels were measured routinely in these trials. AE rates were measured per 100 patient-years of tocilizumab exposure for this pooled analysis.
RESULTS: Overall, 16,204.8 patient-years of tocilizumab exposure (mean ± SD duration of exposure 3.9 ± 2.0 years) were evaluated for 4,171 patients. ALT and AST elevations greater than the upper limit of normal (ULN) occurred in 70.6% and 59.4% of patients, respectively. ALT/AST elevations were >1-3× ULN in 59%/55% of patients, >3-5× ULN in 8.9%/3.3% of patients, and >5× ULN in 2.9%/0.9% of patients. Most elevations occurred during the first year of treatment. Single ALT/AST elevations >3× ULN occurred in 7.7%/3.6% of patients, and ≥2 consecutive elevations >3× ULN occurred in 1.9%/0.4% of patients. Elevations >3× ULN returned to normal in 80% of patients (median of 5.6 weeks to normalization). A total of 2.5% of patients withdrew from tocilizumab treatment following ALT/AST elevations. A total of 7 hepatic serious AEs (SAEs) (0.04 per 100 patient-years [95% confidence interval 0.02-0.09]) occurred in the tocilizumab studies.
CONCLUSION: Transaminase elevations with tocilizumab were frequent, but rates of hepatic SAEs were low in this clinical trial data set. Regular monitoring, with dose adjustment of tocilizumab/DMARDs for persistent elevations, is recommended.
PMID: 28597609 [PubMed - indexed for MEDLINE]
("drug-induced" OR "drug-related") AND ("adverse events" OR "side effects" OR "side-effects"); +16 new citations
16 new pubmed citations were retrieved for your search. Click on the search hyperlink below to display the complete search results:
("drug-induced" OR "drug-related") AND ("adverse events" OR "side effects" OR "side-effects")
These pubmed results were generated on 2017/09/21
PubMed comprises more than millions of citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.