Active clinical trials for "Agranulocytosis"

The purpose of this study is evaluating the efficacy and safety of generics caspofungin in the treatment of the patients with neutropenic and fever.Another purpose of this study is comparing the pharmacokinetic characteristics of generics caspofungin and original medicine(Cancidas®) for providing a basis for clinical rational administration.

In recent decades, hematologists have noticed that persons of African descent sometimes have lower white blood cell counts of a certain type, called granulocytes. These cells help to fight infections. The lower number of granulocytes in this situation does not appear to lead to more infections, and these individuals do not have any symptoms. This condition is called benign ethnic neutropenia (BEN), and is observed in a small percentage of individuals of African descent. This study will investigate the condition by studying people with and without BEN. The goals of this study are to: identify individuals of African descent with BEN. determine the effects of two drugs, G-CSF and dexamethasone, on granulocyte production and movement. determine whether there are differences in those with and without BEN in the way genes are stimulated after the administration of G-CSF and dexamethasone. Study participants will be asked to interview with the research team, undergo physical exams, donate a blood sample, and receive G-CSF by injection, followed by dexamethasone (orally) about three weeks later. They also will be required to undergo apheresis three times, a procedure in which blood is drawn from a donor and separated into its components. Some components are retained for research analyses, such as granulocytes, and small amount of blood; the remainder is returned by transfusion to the donor. This procedure will be required of participants before they receive G-CSF, the day after they receive G-CSF, and the day after they receive dexamethasone. Gene messages (mRNA will be isolated from granulocytes, and analyzed to better understand granulocyte growth and movement.

To quantify the role of drugs and other factors in the etiology of agranulocytosis and aplastic anemia.

Although antibody-drug conjugate(ADC) has proved effective in treating many cancers, few patients receiving ADC may experience rare but life-threatening sepsis-related toxicities such as sepsis and septic shock. Today, data about sepsis/septic shock are scarce. The objective was to investigate reports of sepsis/septic shock adverse events related to ADC, including Gemtuzumab Ozogamicin, Trastuzumab Emtansine, Inotuzumab Ozogamicin, Enfortumab vedotin, Trastuzumab deruxtecan, Sacituzumab govitecan, Brentuximab Vedotin, Moxetumomab pasudotox, Polatuzumab Vedotin, Belantamab Mafodotin, loncastuximab tesirine and Tisotumab vedotin using international pharmacovigilance databases such as the FDA Adverse Event Reporting System (FAERS).

To determine the role of drugs in the etiology of aplastic anemia, agranulocytosis, and thrombocytopenic purpura. Drugs used in chemotherapy and immunotherapy were excluded.

Thionamides, the antithyroid drugs, have been widely used to treat hyperthyroidism1. Side effects are found in 1% - 5% of the patients1. One of the most serious side effect is agranulocytosis, which occurs in 0.1% - 0.3 % of the patients1. This might lead to severe infection and sometimes mortality. The underlying mechanism is unclear. An immune phenomenon may be involved because the antigranulocyte antibodies or lymphocyte sensitized to antithyroid drugs are found in these patients6,7. The recognition of major histocompatibility complex class II peptide complexes by T lymphocytes is central to the development of immune response. According to a report in 1996, the HLA DRB1*08032 allele is strongly associated with susceptibility to methimazole-induced agranulocytosis20. Recently, there are new techniques for genetics study. We aimed to identify the associated genetic change of the agranulocytosis side effect of antithyroid drugs. First, we will look at the classical human Leukocyte Antigen (HLA) loci, such as HLA-A, -B, -C, -DR, -DQ and -DP. If no significant change is found in the above genes, we will consider whole exon sequencing with next-generation sequencing, Statistic analysis will include appropriate linkage analysis, association study, variation data analysis, pathway analysis. If we can identify the genetic change and perform genetic examinations before prescription, we can avoid the happening of severe side effects.