Search results for "Drug trial"

Measuring the Efficacy of Psychotropic Drugs: Clinical Symptoms and Rating Scales

1990

The pathophysiology of anxiety, affective and schizophrenic disorders is not known. Therefore the efficacy of psychotropic drugs cannot be tested by their effect on the pathophysiology of mental disorders. The efficacy of psychotropic drugs in the treatment of acute episodes can only be evidenced by the reduction of indicators of the severity of the target symptomatology in the controlled drug trials.

Evidences from Clinical Trials and Use of Antihypertensive Drugs in Children and Adolescents

2019

In adults, when prescribing antihypertensive therapy, decisions regarding the choice of agent can be based upon evidence from clinical trials in large numbers of subjects, many of these having compared one class of agent with another. Whilst increased emphases on conducting drug trials in children and adolescents over the past 25 years have yielded important advances, and have tested the efficacy and safety of the various classes of antihypertensive agents, there remains a general lack of high quality long-term outcome data to guide choice of drug therapy for pediatricians managing HTN. As of today, certain clinical trials in children and adolescents have established the pharmacokinetics, p…

Early improvement as a predictor of remission and response in schizophrenia: Results from a naturalistic study

2009

AbstractObjectiveTo examine the predictive validity of early improvement in a naturalistic sample of inpatients and to identify the criterion that best defines early improvement.MethodsTwo hundred and forty-seven inpatients who fulfilled ICD-10 criteria for schizophrenia were assessed with the Positive And Negative Syndrome Scale (PANSS) at admission and at biweekly intervals until discharge from hospital. Remission was defined according to the recently proposed consensus criteria, response as a reduction of at least 40% in the PANNS total score from admission to discharge.ResultsReceiver operating characteristic (ROC) analyses showed that early improvement (reduction of the PANSS total sco…

Measures of the efficacy of psychotropic drugs in acute treatment: the current status of their validity

1992

A multicenter measurement of magnetization transfer ratio in normal white matter

1999

To assess the importance of intercenter variations when measuring magnetization transfer ratio (MTR) in the brain, six European centers measured MTR in normal white matter. MTR ranged from 9 to 51 percent units (25 sequences). The effective flip angle of the saturating pulse divided by the pulse repetition time (ENRsat degrees/msec) was a good predictor of MTR (MTR = 3.25 ENRsat).