Abstract:
OBJECTIVE:Clozapine (CLZ) has been shown to have a beneficial effect on cognition in schizophrenia in some studies and a detrimental effect in others. The relative effect and exposure to CLZ and its major metabolite-N-desmethylclozapine (NDMC)-could explain these discrepancies. METHODS:Using a validated measure of global cognition, we performed 2 binary logistic regression models to assess the relationship among cognition, age, sex, CLZ dose, CLZ and NDMC plasma levels, and their ratio (CLZ/NDMC) in individuals with schizophrenia spectrum disorders. Model 1 included age, sex, CLZ dose, and CLZ and NDMC levels. Model 2 included age, sex, CLZ dose, and CLZ/NDMC. RESULTS:Among 73 subjects (mean [SD] age, 41.6 [12.0] years), 16 (21.9%) had high cognitive impairment, whereas the rest had low cognitive. In model 1, age and CLZ level were associated with high cognitive impairment (odds ratio [95% confidence interval] for age, 1.079 [1.011-1.152]; CLZ level, 1.010 [1.003-1.017]), whereas NDMC level was associated with its absence (NDMC level, 0.987 [0.977-0.997]). In model 2, age, male sex, and CLZ/NDMC were associated with cognitive impairment (age, 1.083 [1.015-1.154]; sex, 0.178 [0.032-0.994]; CLZ/NDMC, 7.302 [1.823-29.253]). Clozapine dose was not associated with cognition in either model. CONCLUSIONS:After controlling for age, sex, and dose, CLZ/NDMC was more strongly associated with cognition than CLZ or NDMC levels. N-desmethylclozapine agonist activity versus CLZ antagonist activity at the muscarinic receptors could explain the strength of the association of CLZ/NDMC with cognition.
journal_name
J Clin Psychopharmacoljournal_title
Journal of clinical psychopharmacologyauthors
Rajji TK,Uchida H,Ismail Z,Ng W,Mamo DC,Remington G,Pollock BG,Mulsant BHdoi
10.1097/JCP.0b013e3181e69060subject
Has Abstractpub_date
2010-08-01 00:00:00pages
431-6issue
4eissn
0271-0749issn
1533-712Xpii
00004714-201008000-00016journal_volume
30pub_type
杂志文章abstract::Serotonin 2C and 2A receptor (5-HT2C and 5-HT2A) antagonisms are hypothesized to play a role in the metabolic adverse effects induced by olanzapine and clozapine. Associations between polymorphisms in 5-HT2C and 5-HT2A receptor coding genes, HTR2C and HTR2A, with antipsychotic-induced weight gain have been reported. T...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:10.1097/JCP.0b013e31819302c3
更新日期:2009-02-01 00:00:00
abstract::Effects of venlafaxine, an antidepressant acting by selective serotonin and norepinephrine reuptake inhibition with a potency ratio of 5:1, were assessed in a standardized, actual driving test, a battery of psychomotor tests (Critical Flicker/Fusion Frequency, Critical Tracking, Divided Attention), and a 45-minute vig...
journal_title:Journal of clinical psychopharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00004714-199806000-00006
更新日期:1998-06-01 00:00:00
abstract::The ability of the Hamilton Rating Scale for Anxiety, the Hamilton Rating Scale for Depression, and 50 items from the self-rated Hopkins Symptom Checklist to discriminate generalized anxiety disorder from major depressive disorder was examined for over 3,000 patients entering studies in three drug development projects...
journal_title:Journal of clinical psychopharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00004714-199006001-00011
更新日期:1990-06-01 00:00:00
abstract:PURPOSE/BACKGROUND:Emotional adverse effects due to antidepressant use may cause difficulties for the clinician in the treatment of depression. In this prospective study, the emotional adverse effects of antidepressants were evaluated in various aspects. METHODS/PROCEDURES:Ninety eight patients diagnosed with major de...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:10.1097/JCP.0000000000001300
更新日期:2020-11-01 00:00:00
abstract::How do we best teach clinical psychopharmacology to trainees and clinicians, so they not only increase their knowledge base, but even more importantly also learn to practice the most informed, evidence-based practice possible? This article attempts to answer this elusive question by compiling the individual and combin...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:10.1097/jcp.0b013e3181603f6b
更新日期:2008-02-01 00:00:00
abstract::The antidepressant mirtazapine is an alternative to classical hypnotics, and this study investigated the efficacy and safety of esmirtazapine (Org 50081, the maleic acid salt of S-mirtazapine) in patients given a diagnosis of primary insomnia after acute (2-day) treatment. Patients aged 18 to 65 years with primary ins...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1097/JCP.0000000000000546
更新日期:2016-10-01 00:00:00
abstract::A case of rhabdomyolysis is described, with onset following three intramuscular injections of loxapine and one injection of benztropine over a 7-hour period. The possible additive effects of intramuscular drug administration and psychotic episode-associated increased muscle membrane permeability are discussed. Because...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:
更新日期:1984-02-01 00:00:00
abstract::Adult attention deficit/hyperactivity disorder (ADHD) is an increasingly recognized disorder with associated psychiatric comorbidity and impairment. Although pharmacotherapy serves an important role in treating ADHD and other concurrent psychiatric disorders in children and adolescents, the use of pharmacotherapeutics...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章,评审
doi:10.1097/00004714-199508000-00006
更新日期:1995-08-01 00:00:00
abstract::The neurotransmitter dopamine is integrally involved in the rewarding effects of drugs, and it has also been thought to mediate impulsive behaviors in animal models. Most of the studies of drug effects on impulsive behaviors in humans have involved drugs with complex actions on different transmitter systems and differ...
journal_title:Journal of clinical psychopharmacology
pub_type: 临床试验,杂志文章
doi:10.1097/jcp.0b013e3181602fab
更新日期:2008-02-01 00:00:00
abstract:BACKGROUND:Anxiety symptoms frequently experienced by patients with a major neurocognitive disorder (NCD) are often treated with long-term benzodiazepines despite known adverse effects. Pregabalin has shown efficacy in generalized anxiety disorders but has not been studied in patients with a major NCD. The objective of...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:10.1097/JCP.0000000000001029
更新日期:2019-05-01 00:00:00
abstract:PURPOSE/BACKGROUND:The purpose of this study was to examine the relationships between ytochrome P450 family 2 subfamily C member 19 (CYP2C19) polymorphisms, brain-derived neurotrophic factor (BDNF) plasma levels, and treatment responses to escitalopram in Chinese patients with panic disorder (PD). METHODS/PROCEDURES:N...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:10.1097/JCP.0000000000001014
更新日期:2019-03-01 00:00:00
abstract:PURPOSE/BACKGROUND:The study objective was to compare the impact of being treated by paliperidone palmitate (PP) or risperidone long-acting injection (RLAI) on the length of stay on initial hospitalization, rehospitalization risk, and treatment duration in schizophrenic patients. METHODS:We conducted an observational ...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章,多中心研究
doi:10.1097/JCP.0000000000000827
更新日期:2018-02-01 00:00:00
abstract::The clinical features and pharmacokinetics of 22 lithium overdoses are described. Effectiveness of different treatment regimens regarding elimination of lithium is discussed. Origin of overdose was due to deliberate poisoning or precipitated by concomitant diseases, coadministration of drugs, or combination of both. T...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:10.1097/01.jcp.0000218405.02738.b3
更新日期:2006-06-01 00:00:00
abstract::Side effect and health status changes were measured in 3 studies in which outpatients experiencing suboptimal efficacy or tolerability with their current antipsychotic were switched to 6 weeks of open-label ziprasidone. The studies differed only in the patient's prior antipsychotic; 1 study group was on olanzapine (n ...
journal_title:Journal of clinical psychopharmacology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1097/01.jcp.0000095347.32154.08
更新日期:2003-12-01 00:00:00
abstract::Nitrous oxide (laughing gas) has shown early promise as a rapidly acting antidepressant in patients with treatment-resistant major depression and is currently investigated in several clinical trials. Because nitrous oxide is rarely administered outside operating rooms or dental practices, most psychiatrists are not fa...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章,评审
doi:10.1097/JCP.0000000000000837
更新日期:2018-04-01 00:00:00
abstract:PURPOSE/BACKGROUND:Many investigators reported that pharmacological treatment of female sexual dysfunction (FSD) has been a promising field yet to be explored. The purpose of this pilot study was to investigate the efficacy and safety of a topical cream containing small concentrations of three vasodilators with differe...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1097/JCP.0000000000000811
更新日期:2018-02-01 00:00:00
abstract::This article reports results for patients who completed the 16-week maintenance phase of a double-blind clinical trial comparing buprenorphine (N = 43; average dose = 9.0 mg/day sublingually) with methadone (N = 43; average dose = 54 mg/day orally) in the outpatient treatment of opioid dependence. In addition to pharm...
journal_title:Journal of clinical psychopharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00004714-199602000-00010
更新日期:1996-02-01 00:00:00
abstract::Seven patients with AIDS-related cognitive and emotional deficits had neuropsychologic testing and then were treated with methylphenidate or dextroamphetamine in individualized doses. Three patients showed marked functional improvement and 5 of the 7 became more spontaneous, reactive, and animated. Additional neuropsy...
journal_title:Journal of clinical psychopharmacology
pub_type: 临床试验,杂志文章
doi:
更新日期:1992-08-01 00:00:00
abstract::Unlike many other areas of medicine, psychiatric clinical trials have no gold standard laboratory tests with which to measure drug effects. Although reliable and valid psychometric measures are available, the standard analysis of such measures obscures the clinical relevance of drug effects. In this study, the authors...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:10.1097/00004714-200012000-00014
更新日期:2000-12-01 00:00:00
abstract::The aim of this study was to compare the disposition of the tricyclic antidepressant clomipramine (C) in Japanese and Swedish patients receiving continuous treatment. Therapeutic drug monitoring data for C and the active metabolite N-desmethylclomipramine (DC) in Japanese patients receiving monotherapy (N = 12) and in...
journal_title:Journal of clinical psychopharmacology
pub_type: 临床试验,杂志文章
doi:10.1097/00004714-199910000-00002
更新日期:1999-10-01 00:00:00
abstract:OBJECTIVE:The quality of clinical interviews conducted in industry-sponsored clinical drug trials is an important but frequently overlooked variable that may influence the outcome of a study. We evaluated the quality of Hamilton Rating Scale for Depression (HAM-D) clinical interviews performed at baseline in 2 similar ...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:10.1097/01.jcp.0000194621.61868.7c
更新日期:2006-02-01 00:00:00
abstract::This discussion focuses on three basic areas relevant to tardive dyskinesia (TD). The first area includes an overview of some specific acts of negligence that have been the basis for successful malpractice cases involving TD. Some of these acts of negligence include inappropriate assessment of the patient, failure to ...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章,评审
doi:10.1097/00004714-198808001-00014
更新日期:1988-08-01 00:00:00
abstract::Central nervous system depressant drugs (CNS-Ds) are known to impair cognitive functions. Overdose of these drugs is common, and most of the hospital-treated patients are discharged within 24 to 48 hours. No previous studies have examined whether they have residual impairment at the time of discharge. Our aim was to e...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:10.1097/JCP.0b013e31825d6ddb
更新日期:2012-08-01 00:00:00
abstract::The potential for iloperidone, a D2/5-HT2A antipsychotic, to affect the heart rate-corrected QT interval (QTc) was assessed in the absence and presence of metabolic inhibitors in a randomized, open-label, multicenter study. QT interval prolongation by medications, including both conventional and atypical antipsychotic...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1097/JCP.0b013e31827c0314
更新日期:2013-02-01 00:00:00
abstract::The objective of this study was twofold: (1) to describe the effects of risperidone on the quantitative electroencephalogram (EEG) in schizophrenic patients and (2) to explore the relationships between EEG changes and clinical improvement. The subjects were nine male schizophrenic patients participating in a placebo-c...
journal_title:Journal of clinical psychopharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1993-10-01 00:00:00
abstract::Olanzapine therapeutic drug monitoring (TDM) is the measurement of plasma olanzapine to assess adherence and guide dosage. We have audited data from an olanzapine TDM service, 1999-2009. Multiple linear regression analysis was conducted to investigate the contribution of dose, age, sex, body weight, and smoking status...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:10.1097/JCP.0b013e318221b408
更新日期:2011-08-01 00:00:00
abstract::Concomitant use of acetylcholine esterase inhibitors (AChEIs) and anticholinergic drugs, such as urinary antispasmodics (UA), is generally considered as inappropriate because of their opposite pharmacological actions. However, prevalence and the duration or factors associated with concomitant use have not been previou...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:10.1097/JCP.0000000000000218
更新日期:2014-12-01 00:00:00
abstract:OBJECTIVE:A serious side effect of atypical antipsychotics is increased body weight, which leads to further morbidity and nonadherence to medication. It has been suggested that both genetic and nongenetic variables may influence antipsychotics-related weight gain. This study aimed to simultaneously explore the effects ...
journal_title:Journal of clinical psychopharmacology
pub_type: 临床试验,杂志文章
doi:10.1097/01.jcp.0000203196.65710.2b
更新日期:2006-04-01 00:00:00
abstract::Methadone is a synthetic opioid that binds to the κ-opioid receptor with a low affinity. This study tested the hypotheses that the genetic polymorphisms in the κ-opioid receptor 1 (OPRK1) gene region are associated with methadone treatment responses in a Taiwan methadone maintenance treatment (MMT) cohort. Seventeen s...
journal_title:Journal of clinical psychopharmacology
pub_type: 临床试验,杂志文章
doi:10.1097/JCP.0000000000000082
更新日期:2014-04-01 00:00:00
abstract::Macrolide antibiotics such as erythromycin have been found to impair the hepatic metabolism of carbamazepine. In addition, recent studies have shown that intestinal flora can N-demethylate tricyclic antidepressants, suggesting that the human gut may be a possible site of extrahepatic drug metabolism. Therefore, we con...
journal_title:Journal of clinical psychopharmacology
pub_type: 杂志文章
doi:
更新日期:1991-06-01 00:00:00