Glioblastoma Multiforme (GBM) is a debilitating type of brain cancer with a high mortality rate. Despite current treatment options such as surgery, radiotherapy, and the use of temozolomide and bevacizumab, it is considered incurable. Various methods, such as drug repositioning, have been used to increase the number of available treatments. Drug repositioning is the use of FDA-approved drugs to treat other diseases. This is possible because the drugs used for this purpose have polypharmacological effects. This means that these medications can bind to multiple targets, resulting in multiple mechanisms of action. Antipsychotics are one type of drug used to treat GBM. Antipsychotics are a broad class of drugs that can be further subdivided into typical and atypical classes. Typical antipsychotics include chlorpromazine, trifluoperazine, and pimozide. This class of antipsychotics was developed early on and primarily works on dopamine D2 receptors, though it can also work on others. Olanzapine and Quetiapine are examples of atypical antipsychotics, a category that was created later. These medications have a high affinity for serotonin receptors such as 5- HT2, but they can also act on dopamine and H1 receptors. Antipsychotic medications, in the case of GBM, also have other effects that can affect multiple pathways due to their polypharmacological effects. These include NF-B suppression, cyclin deregulation, and -catenin phosphorylation, among others. This review will delve deeper into the polypharmacological, the multiple effects of antipsychotics in the treatment of GBM, and an outlook for the field's future progression.
In the past two decades, the search for novel pharmacotherapies to treat alcohol addiction has been a global endeavor. This has resulted in several drugs that have been approved and successfully marketed for public use while some are still in the testing phase. These pharmacological agents, though effective for the treatment of alcoholism, are not without shortcomings; such as abuse potential, serious mental and physical adverse effects, interaction with alcohol and also poor metabolism and excretion. As more is being understood about the neurobiology of alcohol addiction as well as the unique pharmacological action of these drugs, new agents are evaluated for potential benefits when used as an adjunct in combination therapy. This review article summarizes the novel pharmacotherapeutic approaches used in the treatment of alcohol addiction by focusing on the drugs, which include neramexane, gabapentin, baclofen, aripiprazole, nalmafene, and quetiapine.
Matched MeSH terms: Quetiapine Fumarate/adverse effects; Quetiapine Fumarate/therapeutic use
Somnambulism or sleepwalking is a sleep disorder of arousal. Compared to in adults, pediatric and adolescent sleep disorders is still under-researched and poorly described. We report the successful use of low dose quietiapine, an atypical antipsychotic, in the treatment of a 15-year-old Indian male who presented with significant somnambulism. To the best of our knowledge, this is the first report on the use of quetiapine for the treatment of somnambulism in the literature. The presence of high voltage delta waves in sleepwalkers has been offered as a possible explanation for the patho-physiology of sleepwalking Quetiapine has been reported to decrease brain delta activity, and we postulate that this may be the mechanism on how it was beneficial for our patient.
In recent years, more cases of manic switches on Mirtazapine have been reported. In this report, we discuss a case of manic switch in a gentleman who was treated as unipolar depression. A 66-year-old man presented to psychiatry 8 months following a nephrectomy for symptoms of depression. Treatment with Sertraline 50mg daily was initiated and titrated to 150mg, along with Zolpidem and Clonazepam to aid his sleep. Despite these medications he never achieved remission and continued to have persistent anxiety and insomnia. Due to suboptimal control, treatment was changed to Mirtazapine 15mg daily. At day 20 he showed symptoms of mania which included talkativeness, increased goal directed activities, reduced need for sleep and socially disinhibited behavior. Mirtazapine was discontinued, and treatment was changed to Sodium Valproate, optimized to 1000mg daily, augmented with Quetiapine 150mg daily. Remission was achieved after 4 months and he has remained asymptomatic for 2 months. This was his first episode of mania, and a diagnosis of Bipolar I disorder was made. In conclusion, antidepressant induced manic switches are common, they are relatively under-appreciated and under-reported, especially with the use of sleep-promoting antidepressants. All antidepressants should be considered to be a potential mediator of a switch in view of its pharmacological properties.
Introduction: Second generation antipsychotic (SGA) was linked to increased risk of metabolic syndrome. The risk varies between different SGA. We aim to study this risk by examining the co-prescription of antihypertensive, antidiabetic and lipid lowering drugs in patients prescribed with either aripiprazole, quetiapine or clozapine.
Methods: This is a retrospective cohort study based on the prescription records of a teaching hospital. Prescription records between January 1, 2013 and December 31, 2014 for
psychiatric unit were extracted. Patients with at least one prescription of any antipsychotic were included. The odds of antihypertensive, antidiabetic and lipid lowering drugs co-prescription in patients with either aripiprazole, quetiapine or clozapine were calculated.
Results: Of the 1742 study subjects, 88 patients were prescribed with aripiprazole, 175 patients with clozapine and 124 patients with quetiapine. Patients prescribed with quetiapine had
higher odds of co-prescribed with antihypertensive (OR = 1.71, 95% CI = 1.11, 2.63), antidiabetic drugs (OR = 1.81, 95% CI = 1.11, 2.95) and lipid lowering drugs (OR = 1.94, 95% CI = 1.19, 3.16). There were higher odds of co-prescription of antihypertensive (OR = 1.54, 95% CI = 1.05, 2.25), antidiabetic drugs (OR = 1.69, 95% CI = 1.10, 2.59) and lipid lowering drugs
(OR = 1.90, 95% CI = 1.24, 2.91) in patients with clozapine. However, there were no increase odds of co-prescription of the three agents in patients with aripiprazole.
Conclusion: We need to monitor the risk of metabolic syndrome in patients treated with SGA. Aripiprazole has lower risk of metabolic syndrome.
Introduction: Atypical antipsychotic drugs are effective in the treatment of bipolar disorder. Studies have shown that atypical antipsychotic drugs are more superior to typical antipsychotic in term of neurocognitive function, negative symptoms and extrapyramidal side effects. Both aripiprazole and quetiapine are atypical antipsychotic drugs that are effective and commonly used in all phases of bipolar disorder treatment. Objective: The aim of this study is to examine and compare the clinical outcomes of aripiprazole and quetiapine in bipolar disorder patients. Method: This was a retrospective cohort study among patients from psychiatric unit, University Malaya Medical Center. Prescription records dated between January 1, 2013 and December 31, 2014 for psychiatric unit were extracted. The data of the subjects with prescription of the two atypical antipsychotic, namely aripiprazole and quetiapine was extracted. The outcome measures were the co-prescription of antihypertensive drugs, antidiabetic drugs and lipid lowering drugs. Results: A total of 58 subjects were recruited, 11 were on aripiprazole and 47 were on quetiapine. Statistical analysis has shown that both aripiprazole and quetiapine do not have any association with compliance to the medication and also follow up. Study also revealed that there is no association between the aripiprazole and quetiapine group with the metabolic side effects that were measured such as systolic or diastolic blood pressure, waist circumference, weight, glucose level and body mass index. Conclusion: This study has shown that both aripiprazole and quetiapine were similar in terms of metabolic side effect, compliance to medications and follow up.
In this open-label pilot study, 20 adult patients hospitalized for acute bipolar mania received oral quetiapine as a single evening dose of 200 mg on day 1, increased by 200 mg/day on days 2, 3, and 4 until 800 mg/day taken in 2 divided doses on day 4. From day 5 onward, patients received a flexible total dose of 400-800 mg/day until completion of 3 weeks of treatment. Safety and tolerability were assessed by adverse-event (AE)-related dropouts in week 1, incidence of AEs including EPS, changes in electrocardiogram, and vital signs. Efficacy was assessed using the YMRS, PANSS, and CGI scales. Nineteen of 20 patients (95%) completed the quetiapine rapid titration during week 1. Significant improvement was observed in YMRS, PANSS, and CGI Severity of Illness scores by day 5, and was maintained throughout the study. A reduction of > or = 50% in YMRS score was achieved by 75% of patients by day 7, and maintained to day 21. Overall, 20% of patients discontinued due to AEs. Agitation was the most common cause of AE-related study discontinuation. Thirty-five per cent of patients required dose adjustment due to AEs after rapid dose administration was completed. Most patients tolerated rapid titration of quetiapine to 800 mg/day by day 4 of therapy, with a significant improvement in manic symptoms by day 7 of treatment.