Drug-induced Adverse Events

("drug-induced" OR "drug-related") AND ("adverse events" OR "side effects" OR "side-effects"); +12 new citations

Tue, 2019-01-15 11:42

12 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 2019/01/15

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.

Categories: Literature Watch

Medicinal cannabis for chemotherapy-induced nausea and vomiting: prescribing with limited evidence.

Mon, 2019-01-14 08:02
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Medicinal cannabis for chemotherapy-induced nausea and vomiting: prescribing with limited evidence.

Med J Aust. 2019 Jan;210(1):11-12.e1

Authors: Mersiades AJ, Stockler MR, Olver IN, Grimison P

PMID: 30636299 [PubMed - in process]

Categories: Literature Watch

Long-term safety and efficacy of adjunctive rasagiline in levodopa-treated Japanese patients with Parkinson's disease.

Sun, 2019-01-13 07:32
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Long-term safety and efficacy of adjunctive rasagiline in levodopa-treated Japanese patients with Parkinson's disease.

J Neural Transm (Vienna). 2019 Jan 11;:

Authors: Hattori N, Takeda A, Takeda S, Nishimura A, Nakaya R, Mochizuki H, Nagai M, Takahashi R

Abstract
Rasagiline is a monoamine oxidase type-B inhibitor in development in Japan for Parkinson's disease (PD). This open-label study evaluated the long-term safety and efficacy of rasagiline in Japanese patients with PD receiving levodopa. Patients were aged 30-79 years and had wearing-off or weakened effect. Patients received rasagiline 1 mg/day for 52 weeks. The primary objective was to evaluate safety. Secondary endpoints included MDS-UPDRS Part II and Part III total scores (ON-state) and change from baseline in mean daily OFF-time. An additional endpoint was the Parkinson's Disease Questionnaire-39 (PDQ-39) Summary Index (SI) score. In total, 222 patients were enrolled; 52.3% had wearing-off phenomena. Treatment-emergent adverse events (TEAEs) were mostly mild or moderate and occurred in 83.3% of patients; 63.1% had drug-related TEAEs; and 21.2% had TEAEs resulting in discontinuation. Fall (16.7%), nasopharyngitis (14.0%), and dyskinesia (10.8%) were the most frequent TEAEs. Serious TEAEs were reported in 17.6% of patients, and led to discontinuation in 9.5%. At week 52 (last-observation-carried forward), the mean change from baseline in MDS-UPDRS Part III total score (ON-state) was - 7.6; the mean change from baseline in daily OFF-time was - 0.89 h in patients with wearing-off phenomena at the start of the run-in period. The mean change from baseline in PDQ-39 SI was - 0.64. No major safety issues were observed during this 52-week trial of rasagiline as an adjunct to levodopa in Japanese patients. Mean changes in MDS-UPDRS scores and daily OFF-time suggested that adjunctive rasagiline treatment with levodopa was efficacious, with efficacy maintained for at least 52 weeks.

PMID: 30635744 [PubMed - as supplied by publisher]

Categories: Literature Watch

Evaluating the analgesic effect and advantage of transcutaneous electrical acupoint stimulation combined with opioid drugs for moderate to severe cancer-related pain: a study protocol for a randomized controlled trial.

Sun, 2019-01-13 07:32
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Evaluating the analgesic effect and advantage of transcutaneous electrical acupoint stimulation combined with opioid drugs for moderate to severe cancer-related pain: a study protocol for a randomized controlled trial.

Trials. 2019 Jan 11;20(1):40

Authors: Liang Y, Bao G, Gong L, Zhou J, Kong X, Ran R, Shao X, Jiang Y, Zhang W, Liu B, Du J, Fang J, Nie N, Ji C, Fang J

Abstract
BACKGROUND: Transcutaneous electrical acupoint stimulation (TEAS), which is also known as acupuncture-like transcutaneous electrical nerve stimulation (TENS), has been widely used in acute or chronic pain. However, previous research has not demonstrated that TEAS is effective for cancer-related pain. Opioid drugs are strongly recommended for treating cancer-related pain, but opioid-induced immunosuppression is still the most intractable drug-induced medical problem. Evaluating the efficacy and potential advantage of TEAS combined with opioid drugs in moderate and severe cancer-related pain in China is important because such studies are lacking.
METHODS/DESIGN: This trial is a multicenter, prospective randomized controlled clinical trial. In total, 160 patients who were enrolled from two hospitals in the Zhejiang Province (China) will be randomly allocated into two groups: a TEAS group and sham TEAS group without acupoint electrical stimulation. Both groups will receive a 21-day interval of chemotherapy and conventional cancer pain therapy. Fifteen treatment sessions will be performed over a three-week period. The primary outcomes will be measured by changes in the Numerical Rating Scale (NRS) scores and equivalent dosage of morphine at baseline, three weeks of treatment and one two-week follow-up. The secondary outcome measures include cellular immunity function, life quality assessment, opioids side effects assessment, and safety and compliance evaluation.
DISCUSSION: This trial is expected to clarify whether TEAS is effective for cancer-related pain. These results demonstrate the advantage of TEAS combined with opioid drugs on improving immune function and decreasing opioid induced side effects.
TRIAL REGISTRATION: Chinese Clinical Trial Registry, ChiCTR-13003803 . Registered on 27 August 2013.

PMID: 30635007 [PubMed - in process]

Categories: Literature Watch

("drug-induced" OR "drug-related") AND ("adverse events" OR "side effects" OR "side-effects"); +21 new citations

Sat, 2019-01-12 06:52

21 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 2019/01/12

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.

Categories: Literature Watch

Prevention of rocuronium induced mast cell activation with prophylactic oleuropein rich diet in anesthetized rabbits1.

Fri, 2019-01-11 06:27
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Prevention of rocuronium induced mast cell activation with prophylactic oleuropein rich diet in anesthetized rabbits1.

Acta Cir Bras. 2018 Nov;33(11):954-963

Authors: Simsek T, Erbas M, Buyuk B, Pala C, Sahin H, Altinisik B

Abstract
PURPOSE: The effect of a prophylactic oleuropein-rich diet before anesthesia accompanied by the widely-used steroid-based neuromuscular drug rocuronium on mast cell activation was investigated in the study.
METHODS: 14 rabbits used in the study. The rabbits in the oleuropein group were given oleuropein-rich extract added to the animals' water at doses of 20 mg/kg oleuropein for 15 days orally. After 15 days, all rabbits in the two groups were given general anesthesia with rocuronium of 1 mg/kg. After 1 day, animals were sacrificed and the liver tissue sections stained with H&E, toluidine blue and tryptase for immunohistochemical study.
RESULTS: There was no statistically significant difference between ALT, AST and albumin averages of the oleuropein and control groups (p> 0.05). The tryptase average of the control group was higher than the tryptase average of the oleuropein group and this difference was statistically significant (p=0.003). The T. blue average in the oleuropein group was higher than the control group. However, there was no statistically significant difference between groups (p=0.482).
CONCLUSIONS: Rocuronium adverse effects, like hypersensitivity and anaphylaxis, may limit routine use of this substance. The use of oleuropein reduced the number of inflammatory cells and prevented degranulation.

PMID: 30517322 [PubMed - indexed for MEDLINE]

Categories: Literature Watch

Adverse effects of amiodarone therapy in adults with congenital heart disease.

Fri, 2019-01-11 06:27
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Adverse effects of amiodarone therapy in adults with congenital heart disease.

Congenit Heart Dis. 2018 Nov;13(6):944-951

Authors: Moore BM, Cordina RL, McGuire MA, Celermajer DS

Abstract
OBJECTIVE: Amiodarone is a highly effective antiarrhythmic therapy, however its toxicity profile often limits treatment. This is particularly relevant in adults with congenital heart disease (CHD), who are often young and in whom other antiarrhythmic agents commonly fail or are contraindicated. We sought to determine incidence and predictors of adverse effects caused by amiodarone in adult CHD (ACHD).
DESIGN: A retrospective review of patients with moderate to complex ACHD treated with amiodarone at our center between 2000 and 2017 was performed. Incidence and predictors of adverse effects were described. Efficacy of amiodarone therapy in controlling the clinical arrhythmia was assessed as complete, partial, or failed.
RESULTS: Amiodarone was prescribed in 57 patients of 902 ACHD patients reviewed (6%), for a mean duration of 2.7 ± 4.3 years. Significant adverse effects occurred in 56%, most commonly thyroid dysfunction, with amiodarone-induced thyrotoxicosis (AIT) in 30% and amiodarone-induced hypothyroidism in 14%. AIT frequently led to arrhythmia exacerbation and occurred most in those with Fontan anatomy. Severe dermatological effects were seen in 7% and bradycardia requiring pacing in 5%. Interstitial lung disease, peripheral neuropathy and alopecia were observed in single cases. Amiodarone toxicity led to discontinuation of the drug in 42%. Amiodarone was highly effective when tolerated, however, achieving complete arrhythmia control in 63%, partial control in 35%, with failure to control in only one patient.
CONCLUSIONS: Amiodarone therapy is effective in moderate to complex ACHD patients, but is frequently limited by adverse effects. ACHD patients seem especially vulnerable to thyroid dysfunction, with Fontan patients in particular at increased risk of AIT.

PMID: 30239160 [PubMed - indexed for MEDLINE]

Categories: Literature Watch

Triggers for active surveillance of adverse drug events in newborns.

Fri, 2019-01-11 06:27
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Triggers for active surveillance of adverse drug events in newborns.

Cad Saude Publica. 2018 09 06;34(9):e00069817

Authors: Fabretti SC, Brassica SC, Cianciarullo MA, Romano-Lieber NS

Abstract
The study aimed to verify the application and performance of triggers for adverse drug events in hospitalized newborns. This prospective cohort study was conducted in the neonatal care units of a university hospital from March to September 2015. A list of triggers was developed for the identification of adverse drug events in this population. The list included antidote, clinical, and laboratory triggers. A total of 125 newborns who had received drugs during the hospitalization were included. Neonatal patient charts were screened to detect triggers. When a trigger was found, the patient chart was reviewed to identify possible adverse drug events. Each trigger's yield in the identification of adverse drug events was calculated and then classified according to its performance. Nine hundred and twenty-five triggers identified 208 suspected adverse drug events. The triggers' overall yield was 22.5%. The most frequently identified triggers were: drop in oxygen saturation, increased frequency of bowel movements, medications stop, and vomiting. The triggers with the best performance in the identification of adverse drug events were: increased creatinine, increased urea, necrotizing enterocolitis, prescription of flumazenil, hypercalcemia, hyperkalemia, hypernatremia, and oversedation. The triggers identified in this study can be used to track adverse drug events in similar neonatal care services, focusing on the triggers with the best performance and the lowest workload in the identification.

PMID: 30208171 [PubMed - indexed for MEDLINE]

Categories: Literature Watch

An open label randomized clinical trial comparing the safety and effectiveness of one, two or three weekly pentamidine isethionate doses (seven milligrams per kilogram) in the treatment of cutaneous leishmaniasis in the Amazon Region.

Thu, 2019-01-10 06:00
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An open label randomized clinical trial comparing the safety and effectiveness of one, two or three weekly pentamidine isethionate doses (seven milligrams per kilogram) in the treatment of cutaneous leishmaniasis in the Amazon Region.

PLoS Negl Trop Dis. 2018 10;12(10):e0006850

Authors: Gadelha EPN, Ramasawmy R, da Costa Oliveira B, Morais Rocha N, de Oliveira Guerra JA, Allan Villa Rouco da Silva G, Gabrielle Ramos de Mesquita T, Chrusciak Talhari Cortez C, Chrusciak Talhari A

Abstract
BACKGROUND: American Cutaneous Leishmaniasis (ACL), a vector borne disease, is caused by various species of Leishmania and in the Amazonas, Leishmania guyanensis is predominant. The recommended drugs for treatment of cutaneous leishmaniasis (CL) in Brazil are pentavalent antimonials, pentamidine isethionate (PI) and amphotericin B. Pentamidine was initially used as metanolsulfonate or mesylate (Lomidine) at a dose of 4 mg/kg/daily, containing 2.3mg of base. This drug was withdrawn from the market in the eighties, and currently is available as PI. The PI dose required to achieve an equivalent dose of pentamidine base is 7 mg/kg, rather than the 4 mg/kg that is currently recommended in Brazil.
OBJECTIVES: The aim of this study was to evaluate the efficacy and safety of PI in a single dose, two or three doses of 7 mg/kg body weight, intramuscularly, with an interval of seven days between each dose.
MATERIALS AND METHODS: This study was conducted as a controlled, randomized, open-label clinical trial for a total number of 159 patients with CL. Individuals aged 16-64 years with one to six lesions of confirmed CL based on amastigotes visualization in direct examination of Giemsa stained of dermal scraping from the border of the lesion with no previous treatment for CL and no abnormal values for liver enzymes were eligible to participate in the study. Patients with history of diabetes, cardiac, renal, and hepatic disease as well as pregnant women were excluded. Cure was defined as complete healing in the diameters of the ulcers and lesions skin six months after the end of the treatment.
RESULTS: From November 2013 to December 2015, 159 patients were screened and allocated in three groups for treatment with PI: i) 53 patients were treated with a single dose intramuscularly injection of 7 mg/kg body weight; ii) 53 received two doses of 7 mg/kg within an interval of seven days; and iii) 53 were treated with three doses of 7mg/kg with an interval of seven days between each dose. In 120 patients, L. guyanensis was identified. A cure rate of 45%, 81.1% and 96.2% were observed in the first, second and third group, respectively. The cure in the three PI dose group was higher compared to the single-dose (p<0.0001) and two-dose groups (p = 0.03). No serious adverse events occurred.
CONCLUSION: The present study shows that PI is a safe drug and its efficacy varied with the number of doses. The administration of PI in patients with ACL, predominantly caused by L. guyanensis, was mostly efficient in three or two doses of 7 mg/kg.
TRIAL REGISTRATION: ClinicalTrials.gov NCT02919605.

PMID: 30379814 [PubMed - indexed for MEDLINE]

Categories: Literature Watch

Safety, efficacy and acceptability of praziquantel in the treatment of Schistosoma haematobium in pre-school children of Kwale County, Kenya.

Thu, 2019-01-10 06:00
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Safety, efficacy and acceptability of praziquantel in the treatment of Schistosoma haematobium in pre-school children of Kwale County, Kenya.

PLoS Negl Trop Dis. 2018 10;12(10):e0006852

Authors: Kimani BW, Mbugua AK, Kihara JH, Ng'ang'a M, Njomo DW

Abstract
BACKGROUND: The recommended strategy for control of schistosomiasis is preventive chemotherapy with praziquantel (PZQ). Pre-school children (PSC) are excluded from population treatment programs. In high endemic areas, these children are also at risk, and require treatment with PZQ. The Government of Kenya initiated the National School-Based Deworming Programme (NSBDP) where PSC in Early Childhood Development Education (ECDE) Centers are only eligible for treatment with albendazole (ABZ) but not with PZQ.
METHODOLOGY/PRINCIPAL FINDINGS: 400 PSC were enrolled, from 10 randomly selected ECDE Centers in Kwale County, Kenya where children were treated with crushed PZQ tablets mixed with orange juice, at a single dose of 40 mg/kg. Adverse events were assessed 24 hours post-treatment through questionnaires administered to the parents or guardians. Acceptability was determined by observing if the child spat and/ or vomited all or part of the PZQ dose immediately after treatment. Efficacy was assessed by examining urine samples for Schistosoma haematobium eggs in the 5 weeks post-treatment follow-up. Children testing negative for S. haematobium during the follow-up were considered cured. Egg reduction rate (ERR) was calculated as the decrement in the infection intensity (group's geometric mean egg counts per 10 ml of urine) following treatment expressed as a proportion of the pre-treatment infection intensity. Before treatment, 80 out of the 400 children enrolled in the study tested positive for S. haematobium (20.0% (95% confidence interval (CI) 16.4-24.2%). Of these, 41 had infections of heavy intensity (51.3%) while the rest (48.7%) were of light intensity. Five weeks post-treatment, 10 children who had heavy intensity infection were diagnosed with S. haematobium (prevalence: 2.5% (95% CI 1.5-4.9%). Infection intensities decreased significantly from 45.9 (95% CI: 31.0-68.0) eggs/ 10 ml urine to1.4 (95% CI: 1.1-1.7) eggs/ 10 ml urine during pre-and post-treatment respectively. The ERR was 96.9%. There were no severe adverse events during follow up 24 hours post treatment. Treatment tolerability among the 400 children was high as none of the children spat and/ or vomited as observed in this study.
CONCLUSION/SIGNIFICANCE: The study revealed that crushed PZQ is safe and effective in the treatment of urogenital schistosomiasis in this age group. It is therefore recommended that PZQ should be administered to the PSC in Kwale County.

PMID: 30332403 [PubMed - indexed for MEDLINE]

Categories: Literature Watch

A liver-immune coculture array for predicting systemic drug-induced skin sensitization.

Thu, 2019-01-10 06:00
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A liver-immune coculture array for predicting systemic drug-induced skin sensitization.

Lab Chip. 2018 10 23;18(21):3239-3250

Authors: Chong LH, Li H, Wetzel I, Cho H, Toh YC

Abstract
Drug-induced skin sensitization is prevalent worldwide and can trigger life-threatening health conditions, such as Stevens Johnson Syndrome. However, existing in vitro skin models cannot adequately predict the skin sensitization effects of drugs administered into the systemic circulation because dermal inflammation and injury are preceded by conversion of parent drugs into antigenic reactive metabolites in the liver and subsequent activation of the immune system. Here, we demonstrate that recapitulation of these early tandem cellular processes in a compartmentalized liver-immune coculture array is sufficient to predict the skin sensitization potential of systemic drugs. Human progenitor cell (HepaRG)-derived hepatocyte spheroids and U937 myeloid cells, a representative antigen presenting cell (APC), can maintain their respective functions in 2 concentric micro-chambers, which are connected by a diffusion microchannel network. Paradigm drugs that are reported to cause severe cutaneous drug reactions (i.e. carbamazepine, phenytoin and allopurinol) can be metabolized into their reactive metabolites, which diffuse efficiently into the adjoining immune compartment within a 48 hour period. By measuring the extent of U937 activation as indicated by IL8, IL1β and CD86 upregulation upon drug administration, we show that the liver-immune coculture array more consistently and reliably distinguish all 3-paradigm skin sensitizing drugs from a non-skin sensitizer than conventional bulk Transwell coculture. Given its miniaturized format, design simplicity and prediction capability, this novel in vitro system can be readily scaled into a screenable platform to identify the skin sensitization potential of systemically-administered drugs.

PMID: 30252012 [PubMed - indexed for MEDLINE]

Categories: Literature Watch

Does public perception bias lead to more frequent reporting of adverse events: branded vs generic drugs.

Thu, 2019-01-10 06:00
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Does public perception bias lead to more frequent reporting of adverse events: branded vs generic drugs.

Expert Opin Drug Saf. 2018 Aug;17(8):753-756

Authors: Qian J, Mishuk AU, Hansen RA

PMID: 30052091 [PubMed - indexed for MEDLINE]

Categories: Literature Watch

In vitro secondary pharmacological profiling: An IQ-DruSafe industry survey on current practices.

Thu, 2019-01-10 06:00
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In vitro secondary pharmacological profiling: An IQ-DruSafe industry survey on current practices.

J Pharmacol Toxicol Methods. 2018 Sep - Oct;93:7-14

Authors: Valentin JP, Guillon JM, Jenkinson S, Kadambi V, Ravikumar P, Roberts S, Rosenbrier-Ribeiro L, Schmidt F, Armstrong D

Abstract
INTRODUCTION: In 2015, IQ DruSafe conducted a survey of its membership to identify industry practices related to in vitro off target pharmacological profiling of small molecules.
METHODS: An anonymous survey of 20 questions was submitted to IQ-DruSafe representatives. Questions were designed to explore screening strategies, methods employed and experience of regulatory interactions related to in vitro secondary pharmacology profiling.
RESULTS: The pharmaceutical industry routinely utilizes panels of in vitro assays to detect undesirable off-target interactions of new chemical entities that are deployed at all stages of drug discovery and early development. The formats, approaches and size of panels vary between companies, in particular i) choice of assay technology; ii) test concentration (single vs. multiple concentrations) iii) rationale for targets and panels selection (taking into account organizational experience, primary target, therapeutic area, availability at service providers) iv) threshold level for significant interaction with a target and v) data interpretation. Data are generated during the early phases of drug discovery, principally before in vivo GLP studies (i.e., hit-to-lead, lead optimization, development candidate selection) and used to contextualize in vivo non-clinical and clinical findings. Data were included in regulatory documents, and around half of respondents experienced regulatory questions about the significance of the results.
CONCLUSION: While it seems that in vitro secondary pharmacological profiling is generally considered valuable across the industry, particularly as a tool in early phases of drug discovery for small molecules, there is only loose consensus on testing paradigm, the required interpretation and suitable follow up strategies to fully understand potential risk.

PMID: 30030184 [PubMed - indexed for MEDLINE]

Categories: Literature Watch

The use of human tissue in safety assessment.

Thu, 2019-01-10 06:00
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The use of human tissue in safety assessment.

J Pharmacol Toxicol Methods. 2018 Sep - Oct;93:29-34

Authors: Jackson SJ, Prior H, Holmes A

Abstract
INTRODUCTION: The safety-related failure of drugs during clinical phases of development is a significant contributor to drug attrition, wasting resources and preventing treatments from reaching patients. A lack of concordance between results from animal models and adverse events in the clinic has been identified as one potential cause of attrition. In vitro models using human tissue or cells have the potential to replace some animal models and improve predictivity to humans.
METHODS: To gauge the current use of human tissue models in safety pharmacology and the barriers to greater uptake, an electronic survey of the international safety assessment community was carried out and a Safety Pharmacology Society European Regional Meeting was organised entitled 'The Use of Human Tissue in Safety Assessment'.
RESULTS: A greater range of human tissue models is in use in safety assessment now than four years ago, although data is still not routinely included in regulatory submissions. The barriers to increased uptake of the models have not changed over that time, with inadequate supply and characterisation of tissue being the most cited blocks.
DISCUSSION: Supporting biobanking, the development of new human tissue modelling technology, and raising awareness in the scientific and regulatory communities are key ways in which the barriers to greater uptake of human tissue models can be overcome. The development of infrastructure and legislation in the UK to support the use of post-mortem or surgical discard tissue will allow scientists to locally source tissue for research.

PMID: 29753134 [PubMed - indexed for MEDLINE]

Categories: Literature Watch

An overview of the safety pharmacology society strategic plan.

Thu, 2019-01-10 06:00
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An overview of the safety pharmacology society strategic plan.

J Pharmacol Toxicol Methods. 2018 Sep - Oct;93:35-45

Authors: Pugsley MK, Authier S, Koerner JE, Redfern WS, Markgraf CG, Brabham T, Correll K, Soloviev MV, Botchway A, Engwall M, Traebert M, Valentin JP, Mow TJ, Greiter-Wilke A, Leishman DJ, Vargas HM

Abstract
Safety Pharmacology studies are conducted to characterize the confidence by which biologically active new chemical entities (NCE) may be anticipated as safe. Non-clinical safety pharmacology studies aim to detect and characterize potentially undesirable pharmacodynamic activities using an array of in silico, in vitro and in vivo animal models. While a broad spectrum of methodological innovation and advancement of the science occurs within the Safety Pharmacology Society, the society also focuses on partnerships with health authorities and technology providers and facilitates interaction with organizations of common interest such as pharmacology, physiology, neuroscience, cardiology and toxicology. Education remains a primary emphasis for the society through content derived from regional and annual meetings, webinars and publication of its works it seeks to inform the general scientific and regulatory community. In considering the future of safety pharmacology the society has developed a strategy to successfully navigate forward and not be mired in stagnation of the discipline. Strategy can be defined in numerous ways but generally involves establishing and setting goals, determining what actions are needed to achieve those goals, and mobilizing resources within the society to accomplish the actions. The discipline remains in rapid evolution and its coverage is certain to expand to provide better guidance for more systems in the next few years. This overview from the Safety Pharmacology Society will outline the strategic plan from 2016 to 2018 and beyond and provide insight into the future of the discipline which builds upon a previous strategic plan established in 2009.

PMID: 29330132 [PubMed - indexed for MEDLINE]

Categories: Literature Watch

Frequency of Adverse Event Monitoring in Ambulatory Patients on Amiodarone or Dofetilide.

Thu, 2019-01-10 06:00
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Frequency of Adverse Event Monitoring in Ambulatory Patients on Amiodarone or Dofetilide.

J Pharm Pract. 2018 Oct;31(5):457-461

Authors: Rickard JP, Negrelli J, Olson JL, Dick T

Abstract
BACKGROUND: Published studies state that adherence to regular laboratory assessments for anti-arrhythmic drugs is as low as 20%. Monitoring adherence is important as other studies have shown that up to 93% of patients on amiodarone experience an adverse drug event leading to a potentially lethal event.
OBJECTIVE: To determine whether patients prescribed amiodarone or dofetilide are being monitored according to package labeling and guideline recommendations for adverse events.
METHODS: Patients prescribed amiodarone or dofetilide from a 2-year period were eligible for inclusion. Patients with ventricular arrhythmias, prescribed more than 1 anti-arrhythmic agent, or received anti-arrhythmic monitoring outside the health-care system were excluded. Adherence to monitoring parameters was assessed according to labeled recommendations and published guidelines. The primary objective was to determine the frequency of baseline and follow-up monitoring recommendations for patients receiving amiodarone or dofetilide. The secondary objective was to determine rates of adverse drug events.
RESULTS: One hundred patients were evaluated (amiodarone n = 50, dofetilide n = 50). Average rates of baseline and follow-up amiodarone monitoring parameters were 55% and 57%, respectively. Average rates of baseline and follow-up dofetilide monitoring were 99.6% and 85%, respectively. There was a statistically significant difference in abnormally elevated thyroid-stimulating hormone levels (8%-30%, P ≤ .005) after patients were prescribed amiodarone. Twelve percent of patients taking dofetilide had an increase in QTc interval by >15%.
CONCLUSIONS: Amiodarone adverse event monitoring was lower than dofetilide in this cohort. Improving the monitoring of these agents may decrease morbidity risk in this population.

PMID: 28884613 [PubMed - indexed for MEDLINE]

Categories: Literature Watch

Pyronaridine-artesunate for treating uncomplicated Plasmodium falciparum malaria.

Wed, 2019-01-09 08:32
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Pyronaridine-artesunate for treating uncomplicated Plasmodium falciparum malaria.

Cochrane Database Syst Rev. 2019 Jan 08;1:CD006404

Authors: Pryce J, Hine P

Abstract
BACKGROUND: The World Health Organization (WHO) recommends artemisinin-based combination therapies (ACTs) to treat uncomplicated Plasmodium falciparum (P falciparum) malaria. Concerns about artemisinin resistance have led to global initiatives to develop new partner drugs to protect artemisinin derivatives in ACT. Pyronaridine-artesunate is a novel ACT.
OBJECTIVES: To evaluate the efficacy of pyronaridine-artesunate compared to alternative ACTs for treating people with uncomplicated P falciparum malaria, and to evaluate the safety of pyronaridine-artesunate and other pyronaridine treatments compared to alternative treatments.
SEARCH METHODS: We searched the Cochrane Infectious Diseases Group Specialized Register; Cochrane Central Register of Controlled Trials (CENTRAL), published in the Cochrane Library; MEDLINE; Embase; and LILACS. We also searched ClinicalTrials.gov, the WHO International Clinical Trials Registry Platform Search Portal, and the International Standard Randomized Controlled Trial Number (ISRCTN) registry for ongoing or recently completed trials. The date of the last search was 8 May 2018.
SELECTION CRITERIA: Efficacy analysis: randomized controlled trials (RCTs) of pyronaridine-artesunate for treating uncomplicated P falciparum malaria.Safety analysis: RCTs of pyronaridine-artesunate or pyronaridine for treating P falciparum or P vivax malaria.
DATA COLLECTION AND ANALYSIS: For this update, two review authors independently re-extracted all data and assessed certainty of evidence. We meta-analysed data to calculate risk ratios (RRs) for treatment failures between comparisons, and for safety outcomes between and across comparisons.
MAIN RESULTS: We included 10 relevant studies. Seven studies were co-funded by Shin Poong Pharmaceuticals which manufactures the drug. Three studies were funded by government agencies.For efficacy analysis we identified five RCTs with 5711 participants. This included 4465 participants from 13 sites in Africa, and 1246 participants from five sites in Asia. It included 541 children aged less than five years.For polymerase chain reaction (PCR)-adjusted failures at day 28, pyronaridine-artesunate may have fewer failures compared to artemether-lumefantrine (RR 0.59, 95% confidence interval (CI) 0.26 to 1.31; 4 RCTs, 3068 participants, low-certainty evidence), artesunate-amodiaquine (RR 0.55, 95% CI 0.11 to 2.77; 1 RCT, 1245 participants, low-certainty evidence), and mefloquine plus artesunate (RR 0.37, 95% CI 0.13 to 1.05; 1 RCT, 1117 participants, low-certainty evidence).For unadjusted failures at day 28, pyronaridine-artesunate may have fewer failures compared to artemether-lumefantrine (RR 0.27, 95% CI 0.13 to 0.58; 4 RCTs, 3149 participants, low-certainty evidence), and probably has fewer failures compared to artesunate-amodiaquine (RR 0.49, 95% CI 0.30 to 0.81; 1 RCT, 1257 participants, moderate-certainty evidence) and mefloquine plus artesunate (RR 0.36, 95% CI 0.17 to 0.78; 1 RCT, 1120 participants, moderate-certainty evidence).For PCR-adjusted failures at day 42, pyronaridine-artesunate may make little or no difference compared to artemether-lumefantrine (RR 0.86, 95% CI 0.49 to 1.51; 4 RCTs, 2575 participants, low-certainty evidence) and artesunate-amodiaquine (RR 0.98, 95% CI 0.20 to 4.83; 1 RCT, 1091 participants, low-certainty evidence), but may have higher failures than mefloquine plus artesunate (RR 1.80, 95% CI 0.90 to 3.57; 1 RCT, 1037 participants, low-certainty evidence). Overall, pyronaridine-artesunate had a PCR-adjusted treatment failure rate of less than 5%.For unadjusted failures at day 42, pyronaridine-artesunate may have fewer failures compared to artemether-lumefantrine (RR 0.61, 95% CI 0.46 to 0.82; 4 RCTs, 3080 participants, low-certainty evidence), may make little or no difference compared to mefloquine plus artesunate (RR 0.84, 95% CI 0.54 to 1.31; 1 RCT, 1059 participants, low-certainty evidence), and probably makes little or no difference compared to artesunate-amodiaquine (RR 0.98, 95% CI 0.78 to 1.23; 1 RCT, 1235 participants, moderate-certainty evidence).For the safety analysis of severe adverse events and liver function, we identified eight RCTs with 6614 participants comparing pyronaridine-artesunate to other antimalarials, four of which were not in the previous version of this review. A further two RCTs, comparing pyronaridine alone to other treatments, contributed to the synthesis of all adverse events.Raised alanine aminotransferase (ALT) greater than five times the upper limit of normal (> 5 x ULN) is more frequent with pyronaridine-artesunate compared to other antimalarials (RR 3.34, 95% CI 1.63 to 6.84; 8 RCTS, 6581 participants, high-certainty evidence). There is probably little or no difference for raised bilirubin > 2.5 x ULN between pyronaridine-artesunate and other antimalarials (RR 1.03, 95% CI 0.49 to 2.18; 7 RCTs, 6384 participants, moderate-certainty evidence). There was one reported case in which raised ALT occurred with raised bilirubin, meeting criteria for moderate drug-induced liver injury. No study reported severe drug-induced liver injury. Electrocardiograph (ECG) abnormalities were less common with pyronaridine-artesunate compared to other antimalarials. We identified no other safety concerns.
AUTHORS' CONCLUSIONS: Pyronaridine-artesunate was efficacious against uncomplicated P falciparum malaria, achieved a PCR-adjusted treatment failure rate of less than 5% at days 28 and 42, and may be at least as good as, or better than other marketed ACTs.Pyronaridine-artesunate increases the risk of episodes of raised ALT > 5 x ULN. This meets criteria for mild drug-induced liver injury. On one instance this was linked to raised bilirubin, indicating moderate drug-induced liver injury. No episodes of severe drug-induced liver injury were reported. The findings of this review cannot fully inform a risk-benefit assessment for an unselected population. Readers should remain aware of this uncertainty when considering use of pyronaridine-artesunate in patients with known or suspected pre-existing liver dysfunction, and when co-administering with other medications which may cause liver dysfunction.

PMID: 30620055 [PubMed - as supplied by publisher]

Categories: Literature Watch

Disabling Resting Tremors Induced by the Short-term Infusion of Valproate: A Reversible Phenomenon.

Wed, 2019-01-09 08:32
Related Articles

Disabling Resting Tremors Induced by the Short-term Infusion of Valproate: A Reversible Phenomenon.

Tremor Other Hyperkinet Mov (N Y). 2018;8:615

Authors: Gupta A, Kushwaha S

Abstract
Background: Drug-induced tremors after long-term administration of anti-epileptics have been described in the literature. Such tremors are usually postural or action in nature with infrequent resting nature.
Case Report: A 23-year-old female presented in status epilepticus. Past and family histories were negative for seizures. She was managed per protocol with valproate. Within hours, she developed resting tremors. The tremors subsided on changing the anti-epileptic.
Discussion: Resting tremors have mostly been described in the literature as long-term side-effects of valproate. This case illustrates that even short-term infusion of valproate can cause resting tremors.

PMID: 30619645 [PubMed - in process]

Categories: Literature Watch

A phase 1, first-in-human study of 18F-GP1 positron emission tomography for imaging acute arterial thrombosis.

Wed, 2019-01-09 08:32
Related Articles

A phase 1, first-in-human study of 18F-GP1 positron emission tomography for imaging acute arterial thrombosis.

EJNMMI Res. 2019 Jan 07;9(1):3

Authors: Chae SY, Kwon TW, Jin S, Kwon SU, Sung C, Oh SJ, Lee SJ, Oh JS, Han Y, Cho YP, Lee N, Kim JY, Koglin N, Berndt M, Stephens AW, Moon DH

Abstract
BACKGROUND: 18F-GP1 is a novel positron emission tomography (PET) tracer that targets glycoprotein IIb/IIIa receptors on activated platelets. The study objective was to explore the feasibility of directly imaging acute arterial thrombosis (AAT) with 18F-GP1 PET/computed tomography (PET/CT) and to quantitatively assess 18F-GP1 uptake. Safety, biodistribution, pharmacokinetics and metabolism were also evaluated.
METHODS: Adult patients who had signs or symptoms of AAT or had recently undergone arterial intervention or surgery within 14 days prior to 18F-GP1 PET/CT were eligible for inclusion. The AAT focus was demonstrated by conventional imaging within the 5 days prior to 18F-GP1 administration. Whole-body dynamic 18F-GP1 PET/CT images were acquired for up to 140 min after injection of 250 MBq of 18F-GP1. Venous plasma samples were analysed to determine 18F-GP1 clearance and metabolite formation.
RESULTS: Among the ten eligible patients assessed, underlying diseases were abdominal aortic aneurysm with endovascular repair (n = 6), bypass surgery and stent placement (n = 1), endarterectomy (n = 1), arterial dissection (n = 1) and acute cerebral infarction (n = 1). 18F-GP1 administration and PET/CT procedures were well tolerated, with no drug-related adverse events. All patients showed high initial 18F-GP1 uptake in the spleen, kidney and blood pool, followed by rapid clearance. Unmetabolised plasma 18F-GP1 levels peaked at 4 min post-injection and decreased over time until 120 min. The overall image quality was sufficient for diagnosis in all patients and AAT foci were detected in all participants. The 18F-GP1 uptake in AAT foci remained constant from 7 min after injection and began to separate from the blood pool after 20 min. The median standardised uptake value of AAT was 5.0 (range 2.4-7.9) at 120 min post-injection. The median ratio of standardised uptake value of AAT foci to the mean blood pool activity was 3.4 (range 2.0-6.3) at 120 min.
CONCLUSIONS: 18F-GP1 is a safe and promising novel PET tracer for imaging AAT with a favourable biodistribution and pharmacokinetic profile.
TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT02864810 , Registered August 3, 2016.

PMID: 30617563 [PubMed]

Categories: Literature Watch

Integrated safety summary of phase II and III studies comparing oral nemonoxacin and levofloxacin in community-acquired pneumonia.

Wed, 2019-01-09 08:32
Related Articles

Integrated safety summary of phase II and III studies comparing oral nemonoxacin and levofloxacin in community-acquired pneumonia.

J Microbiol Immunol Infect. 2018 Dec 21;:

Authors: Cheng SL, Wu RG, Chuang YC, Perng WC, Tsao SM, Chang YT, Chang LW, Hsu MC

Abstract
BACKGROUND: Nemonoxacin, a novel nonfluorinated quinolone, has broad-spectrum antibacterial activity, including activity against antibiotic-resistant strains, and was developed for treating community-acquired pneumonia (CAP). This report provides an integrated safety summary of oral nemonoxacin from two phase II and one phase III clinical studies.
METHODS: Patients with mild CAP were randomized for treatment with nemonoxacin 500 mg (NEMO-500MG), nemonoxacin 750 mg (NEMO-750MG), or levofloxacin 500 mg (LEVO), orally, once daily, for 7-10 days. Hematological, gastrointestinal, and hepatic disorders; electrocardiography abnormalities; and reported quinolone-associated clinical concerns were included in this analysis.
RESULTS: A total of 520, 155, and 320 subjects were assigned to receive NEMO-500MG, NEMO-750MG, and LEVO, respectively. The incidence of adverse events (AEs) was the highest (54.8%) in the NEMO-750MG group (NEMO-500MG, 36.9%; NEMO-750MG, 54.8%; LEVO, 39.7%) and that of drug-related AEs was comparable between the three groups (NEMO-500MG, 22.9%; NEMO-750MG, 31.0%; LEVO, 22.5%). The majority (>80%) of the patients showed mild drug-related AEs and the distribution based on severity was similar between the groups. The most commonly reported drug-related AEs included neutropenia (NEMO-500MG, 2.5%; NEMO-750MG, 8.4%; LEVO, 4.4%), nausea (NEMO-500MG, 2.5%; NEMO-750MG, 7.1%; LEVO, 2.5%), leukopenia (NEMO-500MG, 2.3%; NEMO-750MG, 4.5%; LEVO, 3.1%), and increased alanine aminotransferase level (NEMO-500MG, 4.4%; NEMO-750MG, 0%; LEVO, 2.5%).
CONCLUSION: Nemonoxacin was well tolerated and no clinically significant safety concerns were identified, suggesting that it possesses a desirable safety and tolerability profile similar to that of levofloxacin, and may be a suitable alternative to fluoroquinolones for treating patients with CAP.

PMID: 30616912 [PubMed - as supplied by publisher]

Categories: Literature Watch

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