Abstract:
BACKGROUND:The therapeutic effectiveness of Echinacea in the treatment and the prevention of colds has been debated. Studies of naturally occurring colds are hampered by variability in time from onset of symptoms to treatment and by heterogeneity in trial design. Experimental infection studies allow for the standardization of time to initiation of treatment, virus type and dose, and immune competence of volunteers. OBJECTIVE:To determine whether the negative results obtained in previous studies of Echinacea were a consequence of efficacy or of inadequate sample size, we performed a meta-analysis of experimental rhinovirus infection studies on the efficacy of Echinacea extracts to prevent symptomatic development of an experimentally induced cold. METHODS:We carried out a systematic search of English- and German-language literature using the MEDLINE, EMBASE, CAplus, BIOSIS, CABA, AGRICOLA, TOXCENTER, SCISEARCH, NAHL, and NAPRALERT, databases and the search terms Echinacea, black Sampson, coneflower, and Roter Sonnenbut. Matching documents were then searched for > or = 1 of the following terms: rhinovirus, RV, inoculation, Inokulation, induced, induziert, artificial, and artifiziell. Suitable studies were identified and pooled for analysis. The primary end point was the development of symptomatic clinical colds, as defined by the authors of the original studies. Results were reported as differences in the proportion of subjects with symptomatic episodes of a common cold, expressed as odds ratios (ORs) and 95% CIs. The secondary outcome was the difference in total symptom severity scores between treatment groups (assessed daily by integrating the severity scores of 8 individual cold-related symptoms that were rated on a scale from 0 [absent] to 4 [very severe]). RESULTS:A total of 234 articles were identified through the literature search; 231 were excluded from the analysis because they related to studies of spontaneous common colds. Three suitable studies were selected for pooling of data. Based on the analysis, the likelihood of experiencing a clinical cold was 55% higher with placebo than with Echinacea (OR, 1.55 [95% CI, 1.02-2.36]; P<0.043). The absolute difference in total symptom scores between groups was -1.96 (95% CI, -4.83 to 0.90; P=NS). CONCLUSIONS:This meta-analysis suggests that standardized extracts of Echinacea were effective in the prevention of symptoms of the common cold after clinical inoculation, compared with placebo. Further prospective, appropriately powered clinical studies are required to confirm this finding.
journal_name
Clin Therjournal_title
Clinical therapeuticsauthors
Schoop R,Klein P,Suter A,Johnston SLdoi
10.1016/j.clinthera.2006.02.001subject
Has Abstractpub_date
2006-02-01 00:00:00pages
174-83issue
2eissn
0149-2918issn
1879-114Xpii
S0149-2918(06)00041-5journal_volume
28pub_type
杂志文章,meta分析,评审abstract:PURPOSE:In critical burn patients, the pharmacokinetic parameters (absorption, distribution, metabolism, and excretion) of many classes of drugs, including antibiotics, are altered. The aim of this study was to compare 2 groups of burn patients undergoing treatment for health care-associated infections with and without...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2017.06.008
更新日期:2017-08-01 00:00:00
abstract::A total of 128 corticosteroid-independent adults with chronic allergic asthma were treated for six weeks with 400 micrograms/day of beclomethasone dipropionate aerosol. Most patients (114 or 89%) had a good to excellent response, characterized by a marked improvement in the signs and symptoms of asthma. Substantial im...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:
更新日期:1982-01-01 00:00:00
abstract::Hydroxychloroquine (HCQ), an antimalarial agent used to treat patients with autoimmune diseases, has been shown to suppress human immunodeficiency virus type 1 (HIV-1) replication in T cells and monocytes in vitro by inhibiting posttranscriptional modification of the virus. An initial randomized, placebo-controlled cl...
journal_title:Clinical therapeutics
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0149-2918(97)80045-8
更新日期:1997-09-01 00:00:00
abstract:BACKGROUND:Three inhibitors of phosphodiesterase 5 (PDE5) are now available for the treatment of erectile dysfunction (ED): sildenafil citrate, vardenafil, and tadalafil. Pharmacologic differences between these compounds may result in patient preferences for one over another and may influence treatment decisions made b...
journal_title:Clinical therapeutics
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1016/s0149-2918(03)80329-6
更新日期:2003-11-01 00:00:00
abstract:BACKGROUND:Fenofibrate lowers serum total cholesterol and triglyceride levels while it elevates serum high-density lipoprotein cholesterol (HDL-C) level. OBJECTIVE:The aim of this study was to investigate the effects of fenofibrate on the particle size of high-density lipoprotein (HDL). METHODS:Patients with hyperlip...
journal_title:Clinical therapeutics
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1016/s0149-2918(02)80064-9
更新日期:2002-10-01 00:00:00
abstract::A prospective, multicenter, open-label randomized trial was conducted to compare the efficacy and tolerability of imipenem-cilastatin (I-C) monotherapy with clindamycin+aminoglycoside (C+A) combination therapy. Forty-nine patients were able to be evaluated for clinical efficacy in the treatment of postpartum endometri...
journal_title:Clinical therapeutics
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:
更新日期:1992-01-01 00:00:00
abstract:OBJECTIVE:This paper examines the rationale for using direct thrombin inhibitors in the management of acute coronary syndrome (ACS). BACKGROUND:With traditional management of ACS using aspirin and unfractionated heparin (UH), refractory angina and new myocardial infarction (MI) continue to develop. Growing understandi...
journal_title:Clinical therapeutics
pub_type: 杂志文章,meta分析
doi:10.1016/S0149-2918(00)80065-X
更新日期:2000-08-01 00:00:00
abstract::Patients with Parkinson's disease experience disabling non-motor symptoms, including autonomic dysfunction, cognitive decline, and sleep disorders. Pharmacologic treatments for these symptoms are often ineffective or have intolerable side effects. Therefore, non-pharmacologic interventions are an attractive alternativ...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2017.11.004
更新日期:2018-01-01 00:00:00
abstract::The efficacy and tolerability of a twice-daily dose of 5 mg of nisoldipine versus 40 mg of sustained-release isosorbide dinitrate (ISDN) were compared in a randomized, double-masked study in 91 patients. During the 21-day treatment period, the mean time taken during bicycle ergometry to the appearance of an ST segment...
journal_title:Clinical therapeutics
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0149-2918(96)80025-7
更新日期:1996-05-01 00:00:00
abstract::Cisapride is a substituted piperidinyl benzamide. It is chemically related to metoclopramide but lacks the antidopaminergic properties of metoclopramide that affect the central nervous system and cause extrapyramidal side effects. Cisapride is indicated for the symptomatic treatment of patients with nocturnal heartbur...
journal_title:Clinical therapeutics
pub_type: 临床试验,杂志文章
doi:10.1016/s0149-2918(98)80092-1
更新日期:1998-03-01 00:00:00
abstract:BACKGROUND:In 2002, fixed-dose combination therapy (FDCT) with rosiglitazone maleate plus metformin hydrochloride became available for the treatment of type 2 diabetes mellitus (DM-2) in subjects whose disease was uncontrolled on monotherapy with metformin or a thiazolidinedione. FDCT allows a reduced pill burden and a...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2004.12.018
更新日期:2004-12-01 00:00:00
abstract::A 28-day regimen of oral contraceptives that uses seven iron tablets (each containing 75 mg of ferrous fumarate) instead of seven sugar placebos was designed to encourage user compliance. To determine professional and user attitudes toward the 28-day regimen, 192 obstetrician-gynecologists and 469 women who used oral ...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:
更新日期:1988-01-01 00:00:00
abstract:BACKGROUND:Antidepressants have been commonly used by women of childbearing age. Recent studies suggest that paroxetine, a selective serotonin reuptake inhibitor (SSRI), might specifically increase teratogenic risk. OBJECTIVES:The purpose of this study was to quantify first-trimester exposure to paroxetine and birth d...
journal_title:Clinical therapeutics
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.clinthera.2007.05.003
更新日期:2007-05-01 00:00:00
abstract:PURPOSE:Public discourse regarding the hepatitis C virus (HCV) drug Sovaldi® (sofosbuvir) has become inflamed, generating much heat but little light concerning the clinical, health economic, and quality-of-life merits of Sovaldi®. The purpose of this article is to provide a factual basis for evaluating the claims regar...
journal_title:Clinical therapeutics
pub_type: 杂志文章,评审
doi:10.1016/j.clinthera.2015.02.009
更新日期:2015-05-01 00:00:00
abstract:BACKGROUND:Outcomes in patients with type 2 diabetes mellitus (DM) can differ based on the antidiabetic medication that is used. Thiazolidinediones (TZDs) are a newer class of agents used for the treatment of type 2 DM. No previous study has compared health care utilization associated with the 2 TZDs on the market. OB...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:
更新日期:2007-01-01 00:00:00
abstract::Immediate complications of trauma and shock include right heart failure, acute respiratory distress syndrome, coagulopathy, brain edema, small bowel dysfunction, renal failure, and immune dysfunction. Nosocomial infections are also common in trauma patients. These infections are the combined result of a compromised ho...
journal_title:Clinical therapeutics
pub_type: 杂志文章,评审
doi:
更新日期:1990-01-01 00:00:00
abstract:BACKGROUND:Numerous studies have shown that plasma exchange (PE) is effective as second-line treatment of severe exacerbations of multiple sclerosis (MS) or other idiopathic inflammatory demyelinating diseases of the central nervous system that are nonresponsive to steroid therapy. OBJECTIVE:The goal of this study was...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2013.02.027
更新日期:2013-04-01 00:00:00
abstract:BACKGROUND:Plasma concentrations of cloxacillin have been found to vary as much as 20-fold among individuals receiving the same oral dose. There is evidence that cloxacillin may be a substrate for P-glycoprotein, suggesting that polymorphisms in the ABCB1 gene may be a contributing factor to the observed variability in...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2009.05.014
更新日期:2009-05-01 00:00:00
abstract:BACKGROUND:Idiopathic thrombocytopenic purpura (ITP) is a relatively rare acquired autoimmune disease characterized by either decreased platelet production or increased platelet destruction leading to reduced platelet counts and increased risk of bleeding. Immune modulators have been used in treatment; however, a novel...
journal_title:Clinical therapeutics
pub_type: 杂志文章,评审
doi:10.1016/j.clinthera.2011.10.004
更新日期:2011-11-01 00:00:00
abstract::Outcomes research in oncology is a relatively young field, but its potential for expanding our understanding of patients' experiences with cancer gives it increasing relevance to clinical oncology research. We provide a brief overview of the growing prevalence of oncology outcomes research, and we discuss some of the ...
journal_title:Clinical therapeutics
pub_type: 杂志文章,评审
doi:10.1016/s0149-2918(03)80103-0
更新日期:2003-02-01 00:00:00
abstract:PURPOSE:The goal of this study was to review recent clinical studies of azilsartan medoxomil (AZL-M) and chlorthalidone (CLD), a combined angiotensin receptor blocker and thiazide-like diuretic, and its role in recently published guidelines. This review explores the role of AZL-M/CLD in treating patients with hypertens...
journal_title:Clinical therapeutics
pub_type: 杂志文章,评审
doi:10.1016/j.clinthera.2020.05.015
更新日期:2020-07-01 00:00:00
abstract:PURPOSE:This Phase 1 pharmacokinetic (PK) comparability study in healthy subjects was performed to compare the PK properties and tolerability of single-dose golimumab 100 mg delivered subcutaneously by an autoinjector device or by a standard needle and syringe that had been used for the subcutaneous (SC) delivery of go...
journal_title:Clinical therapeutics
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.clinthera.2014.09.012
更新日期:2015-02-01 00:00:00
abstract:BACKGROUND:According to prescribing information for rheumatoid arthritis (RA) treatments in the United States, infliximab should be administered at weeks 1, 2, 6, and then every 8 weeks starting at a 3-mg/kg dose, with flexible dosing up to 10 mg/kg and/or every 4 weeks based on clinical response. OBJECTIVE:This study...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2012.10.010
更新日期:2012-12-01 00:00:00
abstract::The objective of this 12-week, double-masked, randomized, multicenter study was to compare the elastoviscous properties of a high-molecular-weight viscosupplement, hylan G-F 20 (polymer concentration, 0.8%), with those of a lower-molecular-weight hyaluronan (LMW HA) product (polymer concentration, 1%) and to determine...
journal_title:Clinical therapeutics
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1016/s0149-2918(00)80010-7
更新日期:1999-09-01 00:00:00
abstract::This paper presents a state-of-the-art review of oral contraceptives (OCs), termed one of the epochal developments of modern times. OCs have had both direct and indirect influences on moral, social, and cultural values and on the interaction of population resources and the environment. In recent years there has been...
journal_title:Clinical therapeutics
pub_type: 杂志文章,评审
doi:
更新日期:1985-01-01 00:00:00
abstract::Since the introduction of angiotensin converting enzyme (ACE) inhibitors into clinical use, much information has been accumulated in animal models and man regarding their effects on renal function in different disease states. Enalapril, the first nonsulfhydryl ACE inhibitor approved for general use in the United State...
journal_title:Clinical therapeutics
pub_type: 杂志文章,评审
doi:
更新日期:1989-09-01 00:00:00
abstract:BACKGROUND:Since the recognition that asthma is characterized by extensive inflammation of the airways, the use of inhaled corticosteroids (ICSs) as controller therapy has become central to successful disease management. As the prevalence of asthma increases worldwide, there is concern about increasing numbers of patie...
journal_title:Clinical therapeutics
pub_type: 杂志文章,评审
doi:10.1016/s0149-2918(03)80302-8
更新日期:2003-01-01 00:00:00
abstract:BACKGROUND:Management of essential thrombocythemia (ET) in high-risk patients is difficult because high platelet numbers can lead to vascular occlusive events and bleeding. Therapeutic interventions in ET are limited to hydroxyurea and anagrelide; however, in Europe, anagrelide is contraindicated in patients with chron...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2009.11.006
更新日期:2009-11-01 00:00:00
abstract:BACKGROUND:Sialorrhea, or drooling, is seen in the pediatric population, especially in patients with cerebral palsy and other neurodevelopmental disabilities. If medication use is warranted, anticholinergic agents are the drug of choice; however, adverse effects limit their use. Glycopyrrolate, a synthetic anticholiner...
journal_title:Clinical therapeutics
pub_type: 杂志文章,评审
doi:10.1016/j.clinthera.2012.02.026
更新日期:2012-04-01 00:00:00
abstract:BACKGROUND:Oral bisphosphonates are well established for the treatment and prevention of postmenopausal osteoporosis; however, they are poorly absorbed from the gastrointestinal (GI) tract and have been associated with GI adverse events. Thus, current dosing guidelines recommend that the patient not eat or lie down for...
journal_title:Clinical therapeutics
pub_type: 杂志文章,评审
doi:10.1016/s0149-2918(03)90005-1
更新日期:2003-01-01 00:00:00