Abstract:
BACKGROUND:The Positive and Negative Syndrome Scale (PANSS) total score is widely used to assess antipsychotic efficacy, however schizophrenia is a multi-dimensional disorder. We conducted a 5-factor analysis for evaluating the efficacy of iloperidone vs. placebo across these different domains in the treatment of schizophrenia. METHOD:The 5-factor model was determined from pooled data from 7 clinical trials (4 placebo- and active-controlled and 3 non-inferiority active-comparator trials of iloperidone) in schizophrenia (N=3580).Five factors were derived (excitement/hostility [P4,P7,G8,G14], depression/anxiety [G1,G2,G3,G4,G6], cognition [P2,N5,N7,G5,G10,G11,G12,G13,G15], positive [P1,P3,P5,P6,G9], and negative [N1,N2,N3,N4,N6,G7,G16]) from a factor analysis on the covariance matrix of 30 baseline PANSS items using a varimax rotation; factors retained had eigenvalues of ≥ 0.5. These newly derived 5 factors differ only slightly from other 5-factor analyses published by others using different datasets. The analysis of covariance model was then applied to assess these efficacy outcomes from the 4-6 week double-blind placebo and active controlled clinical trials of iloperidone. RESULTS:Based on the placebo-controlled trials, iloperidone improvements from baseline (least squared mean change ± standard error) were as follows: excitement/hostility, 0.4 ± 0.21 for 10-16 mg, 0.6 ± 0.43 for 20-24 mg vs. -1.0 ± 0.23 for placebo; P<0.001 for both iloperidone doses vs. placebo; depression/anxiety, 1.9 ± 0.21 for 10-16 mg, 1.9 ± 0.41 for 20-24 mg vs. 1.1 ± 0.22 for placebo; P<0.05 for 10-16 mg dose vs. placebo; cognition, 2.8 ± 0.35 for 10-16 mg, 3.9 ± 0.69 for 20-24 mg vs. 1.6 ± 0.38 for placebo; P<0.05 for both iloperidone doses vs. placebo; positive, 3.7 ± 0.26 for 10-16 mg, 4.1 ± 0.53 for 20-24 mg vs. 2.7 ± 0.29 for placebo; P<0.05 for both iloperidone doses vs. placebo; and negative, 2.2 ± 0.29 for 10-16 mg, 2.5 ± 0.58 for 20-24 mg vs. 1.3 ± 0.32 for placebo; P<0.05 for 10-16 mg vs. placebo. Active controls validated iloperidone efficacy. CONCLUSIONS:Iloperidone demonstrated positive treatment effects on these newly derived PANSS factors. The 10-16 mg and 20-24 mg dose groups had similar efficacy on the PANSS factors, with the exception of the depression/anxiety and negative factors, on which the 10-16 mg dose group showed statistical separation from placebo and the 20-24 mg dose group did not. At 6 weeks, the lack of separation from placebo for the higher dose group may have been due to the much smaller sample size in that group.
journal_name
Schizophr Resjournal_title
Schizophrenia researchauthors
Citrome L,Meng X,Hochfeld Mdoi
10.1016/j.schres.2011.05.018subject
Has Abstractpub_date
2011-09-01 00:00:00pages
75-81issue
1-3eissn
0920-9964issn
1573-2509pii
S0920-9964(11)00294-5journal_volume
131pub_type
杂志文章,随机对照试验abstract:BACKGROUND:Some patients develop breakthrough psychotic symptoms on antipsychotic maintenance medication (BAMM), despite receiving therapeutic antipsychotic doses to which they previously responded. METHODS:We examined the occurrence of BAMM in previously minimally treated first-episode patients with schizophrenia-spe...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2019.11.025
更新日期:2020-11-01 00:00:00
abstract::Patients with schizophrenia demonstrate a generalized deficit across multiple cognitive domains. However, it is unknown whether this deficit is largely due to lower intelligence, or if there is an impact of schizophrenia which cannot be accounted for by measures of general intellectual ability (GIA). We created four I...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2013.04.016
更新日期:2013-07-01 00:00:00
abstract::Frontal lobe dysfunction in individuals with schizophrenia has frequently been detected using both neuroimaging and neuropsychological testing. Results from previous studies vary in the findings of regional specificity vs. generalized frontal cortical dysfunction. We sought to examine potential regional differences in...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/S0920-9964(03)00086-0
更新日期:2004-05-01 00:00:00
abstract::Large-scale gene expression studies in schizophrenia (SZ) have generally focused on the dorsolateral prefrontal cortex. Studies of other brain regions have been less frequent and have rarely been performed in the same subjects. We analyzed postmortem gene expression in multiple cortical regions (Brodmann areas 8, 10, ...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2005.06.007
更新日期:2005-11-15 00:00:00
abstract:BACKGROUND:Structural pathology in the hippocampus is well-documented in schizophrenia, but brain functional changes have not been consistently found. We used spatial navigation in a virtual reality environment, a task that is known to produce robust hippocampal activation in healthy subjects, to examine task-related a...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2016.02.033
更新日期:2016-04-01 00:00:00
abstract::In previous studies of self-monitoring in schizophrenia, patients have exhibited reductions in the amplitude of the error-related negativity (ERN), a component of the event-related brain potential (ERP) elicited most prominently immediately following the execution of incorrect responses. In the current study, we exami...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2007.08.027
更新日期:2008-02-01 00:00:00
abstract::The role of mentalizing abilities (or theory of mind) and empathic abilities in violent behavior were studied in 24 hospitalized males with paranoid schizophrenia (ICD-10). Patients were divided into violent and nonviolent groups based on their history of committing violent acts against others. To examine these abilit...
journal_title:Schizophrenia research
pub_type: 临床试验,杂志文章
doi:10.1016/S0920-9964(03)00049-5
更新日期:2004-07-01 00:00:00
abstract::Previous studies suggest that schizophrenia-related visual perceptual abnormalities are primarily attributed to deficits of the dorsal rather than ventral visual pathway. In this study, we comparatively explored changes in dorsal and ventral networks in schizophrenia patients in both static and dynamic functional conn...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2018.12.005
更新日期:2019-04-01 00:00:00
abstract:BACKGROUND:People from culturally and linguistically diverse (CALD) backgrounds are over-represented in compulsory admissions to hospital but little is known about whether this also applies to community treatment orders (CTOs). AIMS:We investigated any differences between Australian- and foreign-born patients in the l...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2017.12.005
更新日期:2018-07-01 00:00:00
abstract::Widely used in industrialized countries, cannabis is a neuromodulator substance. The cannabinoid system is present at critical stages of retinal processing. We have recently shown a delay in bipolar and ganglion cell responses in regular cannabis users, as observed using flash (fERG) and pattern (PERG) electroretinogr...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2019.01.013
更新日期:2020-05-01 00:00:00
abstract::Structural abnormalities in the lateral prefrontal cortex (LPFC) are well-documented in schizophrenia and recent evidence suggests that these abnormalities relate to functional outcome. Cognitive control mechanisms, reliant on the LPFC, are impaired in schizophrenia and predict functional outcome, thus impaired cognit...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2013.12.005
更新日期:2014-02-01 00:00:00
abstract::The occurrence of a microdeletion at 22q11 has long been considered to constitute a risk factor for schizophrenia. Higher rates of 22q11 deletions have been reported in cohorts of patients with schizophrenia. In order to estimate the prevalence of the 22q11 deletion in schizophrenia patients more accurately, a screeni...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2004.02.008
更新日期:2005-03-01 00:00:00
abstract::We employed a simple and relatively undemanding task of monotone counting for the assessment of sustained attention in schizophrenic patients. The monotone counting task has been validated neuropsychologically and is particularly sensitive to right prefrontal lesions. We compared the performance of schizophrenic patie...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/s0920-9964(96)00120-x
更新日期:1997-04-11 00:00:00
abstract::Schizotypy is usually referred to as a "liability" to schizophrenia, but it could also be more generally referred to as nonspecific "psychosis-proneness". This study examined the structure of schizotypy in a normal sample and in a sample of schizophrenics through the administration of the Schizotypal Personality Quest...
journal_title:Schizophrenia research
pub_type:
doi:10.1016/s0920-9964(01)00353-x
更新日期:2002-03-01 00:00:00
abstract::Attention deficits are considered to be fundamental in patients with schizophrenia. During attention tasks, patients with schizophrenia have been shown to display increased brain activity in some neuroimaging studies but reduced brain activity in others. These conflicting findings may be due to some study designs prim...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2010.03.019
更新日期:2010-09-01 00:00:00
abstract::Poor insight into the neurocognitive deficits in schizophrenia-spectrum disorders may have significant clinical implications for treatment. The purpose of this study was to replicate and extend the psychometric findings initially reported on the Measure of Insight into Cognition Clinician-Rated (MIC-CR) and Self-Repor...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2011.10.002
更新日期:2012-01-01 00:00:00
abstract::Functional abnormalities in the interhemispheric transfer via the corpus callosum in schizophrenia may result in filtering problems and information processing problems, which may in turn be related to the synchronization of cortical event-related activity. To explore whether a relationship exists between corpus callos...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/s0920-9964(00)00123-7
更新日期:2001-04-15 00:00:00
abstract::It is now well established that the utilization of standardized clinical criteria can enhance prediction of psychosis. These criteria are primarily concerned with the presence and severity of attenuated positive symptoms. Because these symptom criteria are used to derive algorithms for designating clinical high risk (...
journal_title:Schizophrenia research
pub_type: 杂志文章,多中心研究
doi:10.1016/j.schres.2015.04.035
更新日期:2015-08-01 00:00:00
abstract::The degree of cortical atrophy as revealed by computed tomographic scans was assessed in 124 patients meeting the DSM III criteria for schizophrenia and in 45 age- and sex-matched healthy controls. 21 patients, i.e., 33% of the entire sample, showed moderate to severe atrophy. The presence of atrophy was not associate...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/0920-9964(88)90046-1
更新日期:1988-09-01 00:00:00
abstract::An absent response to the niacin skin test has been reported to occur in about 80% of schizophrenic patients, as compared to 20% of healthy individuals. Niacin provokes redness in skin caused by a capillary vasodilatation mediated by prostaglandins. The metabolism of prostaglandins is regulated by the enzyme phospholi...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/s0920-9964(02)00281-5
更新日期:2003-05-01 00:00:00
abstract:OBJECTIVES:The impact of cannabis use on the brain tissue is still unclear, both in the healthy developing brain and in people with schizophrenia. The focus of this review is on white matter, the primary connective infrastructure of the brain. METHODS:We systematically reviewed diffusion tensor imaging (DTI) studies o...
journal_title:Schizophrenia research
pub_type: 杂志文章,评审
doi:10.1016/j.schres.2014.04.026
更新日期:2014-07-01 00:00:00
abstract:INTRODUCTION:Contextual factors representing chronic stressors, such as neighborhood crime characteristics, have been repeatedly linked to compromised mental and physical health, and may contribute to the pathologizing of normative/non-clinical experiences. However, the impact of such structural factors has seldom been...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2019.11.024
更新日期:2020-01-01 00:00:00
abstract::Neurological Examination Abnormalities (NEA) are prevalent in schizophrenia, but the significance of this is obscured by methodological problems. The Neurological Evaluation Scale (NES), the most widely used structured neurological examination in schizophrenia research, has had limited study of its inter-rater reliabi...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/s0920-9964(97)00103-5
更新日期:1998-02-09 00:00:00
abstract::Variable levels of essential polyunsaturated fatty acids (EPUFAs) reported in schizophrenia are likely due to differences in age, sex, ethnicity, diet, life style and treatments. The present study examined the EPUFAs levels in plasma, RBC and CSF in never-medicated first-episode psychotic patients and normal controls ...
journal_title:Schizophrenia research
pub_type: 杂志文章,多中心研究
doi:10.1016/j.schres.2007.09.036
更新日期:2008-01-01 00:00:00
abstract:OBJECTIVE:This study aims to differentiate schizoaffective disorder (SAD) and bipolar-I-disorder (BD) in first-episode psychotic mania (FEPM). METHODS:All 134 patients from an epidemiological first-episode psychosis cohort (N=786) with FEPM and an 18-month follow-up final diagnosis of SAD (n=36) or BD (n=98) were asse...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2012.07.010
更新日期:2012-09-01 00:00:00
abstract::Antipsychotic drugs (APDs) are the standard treatment for schizophrenia. The therapeutic effect of these drugs is dependent upon the dopaminergic D2 blockade, but they also modulate other neurotransmitter pathways. The exact mechanisms underlying the clinical response to APDs are not fully understood. In this study, w...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2014.05.015
更新日期:2014-08-01 00:00:00
abstract::Insight was investigated in 180 individuals consecutively admitted to a comprehensive early psychosis treatment program. Insight was assessed on admission and after 3, 6 and 12 months. Insight improved significantly over 12 months, and was negatively correlated with both positive and negative symptoms, and positively ...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/S0920-9964(03)00047-1
更新日期:2004-04-01 00:00:00
abstract::This study tests the hypothesis that deficits of spatial working memory are an inherent trait in schizophrenic patients, regardless of their clinical status. The participants were 22 chronic schizophrenic patients, 11 schizophrenic patients in remission, and 22 normal adults. All participants were asked to track the o...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/s0920-9964(01)00176-1
更新日期:2002-01-01 00:00:00
abstract:OBJECTIVE:Blockade of dopamine D₂ receptors with antipsychotics above 65% is associated with optimal chance of clinical response although recent data suggest a lower threshold for the maintenance treatment of schizophrenia. The objective of this study was to prospectively examine whether such continuous high blockade w...
journal_title:Schizophrenia research
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.schres.2015.03.025
更新日期:2015-05-01 00:00:00
abstract::Motion-induced blindness (MIB) occurs when target stimuli are presented together with a moving distractor pattern. Most observers experience the targets disappearing and reappearing repeatedly for periods of up to several seconds. MIB can be viewed as a striking marker for the organization of cognitive functioning. In...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2005.08.012
更新日期:2006-01-31 00:00:00