Clinical Implications of Endotoxin Concentrations in Vaccines

2002 ◽  
Vol 36 (5) ◽  
pp. 776-780 ◽  
Author(s):  
David A Geier ◽  
Mark R Geier
Keyword(s):  
Adverse Events ◽  
Adverse Reactions ◽  
Reporting System ◽  
Scientific Literature ◽  
Negative Effects ◽  
Whole Cell ◽  
The Us ◽  
Dtp Vaccine ◽  
High Concentrations ◽  
Lal Assay

BACKGROUND: A previous study suggested that high concentrations of endotoxin may be present in whole-cell diphtheria/tetanus/pertussis (DTP) vaccine, and the scientific literature contains many studies examining the reactivity of whole-cell DTP vaccine. The medical and scientific communities have previously reported that the presence of endotoxin in commercial vaccines may have negative effects on vaccine recipients. OBJECTIVE: To determine the endotoxin concentrations in whole-cell DTP, acellular DTP (DTaP), and DT vaccines and determine the clinical experience with each vaccine. METHODS: To study the endotoxin concentrations in vaccines, the Limulus amebocyte lysate (LAL) assay was used. The vaccines analyzed with the LAL assay were whole-cell DTP vaccine lots manufactured by Connaught, Lederle, the Michigan and Massachusetts Departments of Health, and Wyeth; DTaP vaccine lots manufactured by Merieux and Takeda; and DT vaccine lots manufactured by Wyeth and Lederle. The incidence of adverse reactions following whole-cell DTP, DTaP, and DT vaccines were determined based on analysis of the Vaccine Adverse Events Reporting System (VAERS) database. RESULTS: The results of the LAL assay showed that whole-cell DTP vaccines contained considerably more endotoxin than either DTaP or DT vaccines. The VAERS showed that statistically significantly more adverse reactions were associated with whole-cell DTP vaccine than DTaP or DT vaccines. CONCLUSIONS: This analysis confirmed higher concentrations of endotoxin in whole-cell DTP vaccines compared with DTaP or DT vaccines. As high concentrations of endotoxin may be correlated with a higher incidence of adverse events, the switch from whole-cell DTP to DTaP for routine vaccinations in the US seems well justified.

???Extreme Duplication??? in the US FDA Adverse Events Reporting System Database

Drug Safety ◽  
2007 ◽  
Vol 30 (6) ◽  
pp. 551-554 ◽  
Author(s):  
Manfred Hauben ◽  
Lester Reich ◽  
James DeMicco ◽  
Katherine Kim
Keyword(s):  
Adverse Events ◽  
Reporting System ◽  
System Database ◽  
The Us ◽  
Us Fda

scholarly journals Common Immune-Related Adverse Events of Immune Checkpoint Inhibitors in the Gastrointestinal System: A Study Based on the US Food and Drug Administration Adverse Event Reporting System

2021 ◽  
Vol 12 ◽  
Author(s):  
Xiaoyin Bai ◽  
Shiyu Jiang ◽  
Yangzhong Zhou ◽  
Hongnan Zhen ◽  
Junyi Ji ◽  
...  
Keyword(s):  
Adverse Events ◽  
Odds Ratio ◽  
Adjusted Odds Ratio ◽  
Reporting System ◽  
Checkpoint Inhibitors ◽  
Adverse Event Reporting System ◽  
Adverse Event Reporting ◽  
Event Reporting ◽  
Logistic Analysis ◽  
The Us

Immune checkpoint inhibitors (ICIs) have revolutionized cancer treatment; however, immune-related adverse events (irAEs) in the gastrointestinal (GI) system commonly occur. In this study, data were obtained from the US Food and Drug Administration adverse event reporting system between July 2014 and December 2020. Colitis, hepatobiliary disorders, and pancreatitis were identified as irAEs in our study. Reporting odds ratio (ROR) with information components (IC) was adopted for disproportionate analysis. A total of 70,330 adverse events were reported during the selected period, 4,075 records of which were associated with ICIs. GI toxicities have been reportedly increased with ICI, with ROR025 of 17.2, 6.7, and 2.3 for colitis, hepatobiliary disorders, and pancreatitis, respectively. The risks of colitis, hepatobiliary disorders, and pancreatitis were higher with anti-CTLA-4 treatment than that with anti-PD-1 (ROR025 2.6, 1.3, and 1.1, respectively) or anti-PD-L1 treatment (ROR025 4.8, 1.3, and 1.3, respectively). Logistic analysis indicated that hepatobiliary disorders and pancreatitis more frequently occurred in female patients (adjusted odds ratio, 1.16 and 1.52; both p < 0.05). Consistently, polytherapy was a strong risk factor for colitis (adjusted odds ratio 2.52, p < 0.001), hepatobiliary disorders (adjusted odds ratio 2.50, p < 0.001), and pancreatitis (adjusted odds ratio 2.29, p < 0.001) according to multivariate logistic analysis. This pharmacovigilance analysis demonstrated an increased risk of all three GI irAEs associated with ICI therapies. The comparative analysis offered supportive insights on selecting GI irAEs for patients treated with ICIs.

scholarly journals Adverse Events in Elderly Hodgkin Lymphoma Patients Treated with Pembrolizumab or Nivolumab in the Real World

Blood ◽  
2019 ◽  
Vol 134 (Supplement_1) ◽  
pp. 3490-3490 ◽  
Author(s):  
Marjorie E Zettler ◽  
Chadi Nabhan ◽  
Ajeet Gajra ◽  
Bruce Feinberg
Keyword(s):  
Clinical Trials ◽  
Adverse Events ◽  
Elderly Patients ◽  
Real World ◽  
Adverse Reactions ◽  
Age Group ◽  
Younger Patients ◽  
Fda Approval ◽  
The Us ◽  
Post Marketing

Introduction: Registry data indicate that 20% or more of Hodgkin lymphoma (HL) patients are ≥60; these HL patients have been labeled as elderly as their treatment has been associated with more toxicity, a higher relapse rate, and greater mortality relative to younger patients. The characteristics of HL in elderly patients differ from those in younger patients and may represent a biologically more aggressive disease. Further, elderly patients generally have a greater comorbidity burden than their younger counterparts, which may contribute to their under-representation in clinical trials. Nivolumab (NIVO) and pembrolizumab (PEMBRO) are both approved for treating relapsed/refractory HL based on studies that largely enrolled younger patients, as only about 10% of enrolled patients in the pivotal trials that led to their United States (US) Food and Drug Administration (FDA) approval were ≥60 years of age. Whether adverse events (AEs) related to these immunotherapies differ between younger and older HL patients is unknown and may have important clinical and practice implications. Therefore, we reviewed all post-marketing case reports from the FDA Adverse Events Reporting System (FAERS) Database involving NIVO or PEMBRO for HL and compared AEs and outcomes by age. Methods: The FAERS database is a repository of anonymized reports for product-related AEs, classified using the Medical Dictionary for Regulatory Activities (MedDRA) and categorized as serious or non-serious. The database was queried for cases involving NIVO or PEMBRO (and their respective trade names) from the FDA approval date for the HL indication (May 17, 2016 for NIVO; March 14, 2017 for PEMBRO) through March 31, 2019. Cases were excluded if the age of the patient was unknown, or if the case was reported outside the US. Comparisons of rates of AEs by age group were made using Fisher's exact test; statistical significance was determined at a two-sided α=0.05. Results: A total of 126 cases were retrieved (117 involving NIVO, 9 involving PEMBRO). One hundred and fourteen of the 126 cases (90%) were categorized as serious. Median age of all patients involved was 56 (range 10-89); 53 of the cases (42%) involved patients age 60 or older (Table). Overall, 8 cases had an outcome categorized as life-threatening; 20 cases resulted in death; 2 resulted in disability; and 74 resulted in hospitalization. A higher proportion of cases involving younger patients were categorized under the reaction group "neoplasms benign, malignant and unspecified" (16% vs. 2%; p<0.01), and older patients had a greater incidence of infectious complications compared with their younger counterparts, though this was marginally significant (40% vs. 23%; p=0.05). The proportion of cases resulting in hospitalization was significantly higher in the ≥60 age group as compared to the <60 age group (79% vs. 44%; p <0.01). Adverse reactions that were common in clinical trials, such as fatigue, pyrexia, headache, peripheral neuropathy, upper respiratory tract infection, hypothyroidism, diarrhea, nausea and vomiting, did not show any significant associations by age group (all p values >0.05). Conclusions: Although elderly patients comprise 20% of the HL patient population in the US, our post-marketing analysis indicates that AEs in this subgroup account for more than 40% of the total. This suggests that elderly HL patients experience a disproportional number of AEs compared to younger HL patients. While the types of AEs reported in post-marketing cases generally paralleled those observed in clinical trials of HL patients receiving NIVO or PEMBRO, hospitalizations and infections were more common in the elderly group. These differences in the adverse reactions and safety outcomes associated with PD-1 blockade therapy in HL patients may help inform clinical care and monitoring for AEs. Despite the inherent limitations of this study, our findings complement clinical trial safety data and provide insight into real-world trends in reported safety signals that merit further study. Disclosures Zettler: Cardinal Health: Employment. Nabhan:Aptitude Health: Employment. Gajra:Cardinal Health: Employment. Feinberg:Cardinal Health: Employment.

Mortality and adverse events with brand and generic clopidogrel in the US Food and Drug Administration Adverse Event Reporting System

2018 ◽  
Vol 5 (4) ◽  
pp. 210-215 ◽  
Author(s):  
Victor L Serebruany ◽  
Trygve S Hall ◽  
Dan Atar ◽  
Stefan Agewall ◽  
Moo Hyun Kim ◽  
...  
Keyword(s):  
Adverse Event ◽  
Adverse Events ◽  
Drug Administration ◽  
Reporting System ◽  
Food And Drug Administration ◽  
Adverse Event Reporting System ◽  
Adverse Event Reporting ◽  
Chi Square ◽  
Event Reporting ◽  
The Us

Abstract Aims Clopidogrel is commonly used even after expiring patents. The brand clopidogrel (BC) was dealt by single company, while numerous manufacturers produce generic clopidogrel (GC). There are no convincing data to compare the safety of different formulations. Therefore, the data yielded from international, uniform, government-mandated registries may be useful. Methods and results We assessed primary causative adverse events (PCAE) after BC and GC in the US Food and Drug Administration (FDA) Adverse Event Reporting System (FAERS). The outcomes were divided into death, cardiac, thrombotic/embolic, haemorrhagic, and rash/dermal complications. These primary endpoints were then examined by proportional reporting ratios (PRR) and chi-square (χ2). Among total FAERS (n = 9 466 679) reports, overall BC (n = 88 863) cases were more common than after GC (n = 36 559). When triaged by PCAE role, BC (n = 18 328) was also more abundant than GC (n = 3987). The reported death rates were more than doubled after BC [18.4% vs. 7.0%; PRR = 0.38; 95% confidence interval (95% CI) 0.32–0.43; χ2=369.7; P<0.0001] for total FAERS, and consistent for late 2010–2017 (17.6% vs. 7.0% PRR = 0.40; 95% CI 0.37–0.45; χ2=286.2; P<0.004) PCAE cases. In contrast, GC trended to co-report more cardiac (14.6% vs. 13.3%; PRR = 1.12; 95% CI 1.0–1.25; χ2=3.5; P<0.06). The haemorrhagic (40.9% vs. 32.3%; PRR = 1.45; 95% CI 1.33–1.57; χ2=75.8; P<0.0001), and rash/dermal (5.4% vs. 4.6%; PRR = 1.20; 95% CI 1.0–1.44; χ2=3.75; P<0.05) events were also more common for GC. Thrombotic/embolic events were reported equally (at 7.0%) after each formulation. Conclusion The PCAE profiles differ with BC and GC in FAERS. While deaths reports were higher, the rates of cardiac, haemorrhagic, and skin complications were less common for BC. Despite expected reporting bias, this may indicate that the manufacturers of GC are reluctant to report deaths to the FDA. However, the overall adverse event profile suggests potentially better safety of BC over GC formulations.

Novel Adverse Events of Bevacizumab in the US FDA Adverse Event Reporting System Database

Drug Safety ◽  
2012 ◽  
Vol 35 (6) ◽  
pp. 507-518 ◽  
Author(s):  
Behrooz K. Shamloo ◽  
Pankdeep Chhabra ◽  
Andrew N. Freedman ◽  
Arnold Potosky ◽  
Jennifer Malin ◽  
...  
Keyword(s):  
Adverse Event ◽  
Adverse Events ◽  
Reporting System ◽  
Adverse Event Reporting System ◽  
Adverse Event Reporting ◽  
Event Reporting ◽  
System Database ◽  
The Us ◽  
Us Fda
Sign in / Sign up

Export Citation Format

Share Document