Abstract:
:Objective: The aim of this study was to provide recommendations for improving the design of subsequent studies through analysis of the registered coronavirus disease 2019 (COVID-19) clinical trials.Methods: A retrospective analysis of 189 trial retrievals achieved on 20 February 2020.Results: A total of 189 trials are included in the study. There were 69.3% interventional studies, 21.7% observational studies, 5.3% diagnostic tests and 3.7% other studies. The following statistics are provided only for the interventional studies. Severity of disease: 5.3% light and common type, 17.6% severe and critically ill and 59.6% with no restricted classification. Medication use: 51.1% Western medicine, 32.1% Chinese medicine, 10.7% blood related product and 6.1% non-drug therapy. The median and inner quantile range of the sample sizes included in these studies: 104 (IQR: 60, 200). Primary outcome type most used: 45.8% with clinical characteristics and 21.4% with virological. Study design characteristics: 71% of all studies were randomized, 5% of all studies were blinded, 18% of all studies were multicenter and 76% of all studies were single center.Conclusion: Although many COVID-19 studies include randomization in their design, the lack of additional double-blind and placebo-controlled elements in their designs result in a less robust evaluation of intervention safety and efficacy. Furthermore, similar or repeated research and small sample studies that have less promise in gains of new information have possibly led to a shortage of recruitable patients and become a barrier to the completion of large multicenter clinical trial studies.
journal_name
Curr Med Res Opinjournal_title
Current medical research and opinionauthors
Wang B,Lai J,Yan X,Jin F,Yao Cdoi
10.1080/03007995.2020.1771294subject
Has Abstractpub_date
2020-07-01 00:00:00pages
1131-1135issue
7eissn
0300-7995issn
1473-4877journal_volume
36pub_type
杂志文章abstract::Faecal blood loss arising from tenoxicam at a dose of 20 mg/day was compared to that arising from piroxicam at a dose of 20 mg/day in a double-blind, parallel comparative study in 12 healthy male volunteers. Faecal blood loss was measured for a 1-week run-in on placebo, during 4 weeks of treatment and for a 2-week pos...
journal_title:Current medical research and opinion
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1185/03007998509109629
更新日期:1985-01-01 00:00:00
abstract:OBJECTIVE:This observational study was conducted to document the safety of capecitabine-based adjuvant therapy in patients with resected colon cancer under routine clinical conditions. RESEARCH AND DESIGN METHODS:ML20431 was a prospective, multicenter, non-interventional, observational study. It was designed to answer...
journal_title:Current medical research and opinion
pub_type: 杂志文章,多中心研究
doi:10.1185/03007995.2015.1014030
更新日期:2015-04-01 00:00:00
abstract::An open, multi-centre trial was carried out to assess the efficacy and tolerance of acemetacin in the treatment of patients suffering from various rheumatic diseases. The patients were treated by general practitioners for a maximum period of 6 weeks with a daily dose of 60 mg acemetacin 3-times daily. Assessments were...
journal_title:Current medical research and opinion
pub_type: 临床试验,杂志文章
doi:10.1185/03007998509109654
更新日期:1985-01-01 00:00:00
abstract::Data from phase III clinical trials suggest that high dose chemotherapy (HDC) is currently not indicated for any stage of breast cancer. Therefore HDC should only be considered within the context of clinical trials. Furthermore, there is no significant evidence to support the routine use of taxanes in women with metas...
journal_title:Current medical research and opinion
pub_type:
doi:
更新日期:2001-01-01 00:00:00
abstract::Two hundred and two patients with symptoms, signs and mycological evidence of Candida vaginitis were entered in a single-blind trial comparing 6-day clotrimazole therapy with a control group receiving 6 days' nystatin therapy. Adequate data was collected on 69 clotrimazole and 72 nystatin treated patients for analysis...
journal_title:Current medical research and opinion
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1185/03007997509113652
更新日期:1975-01-01 00:00:00
abstract:OBJECTIVE:This study assesses the direct (medical and drugs) and indirect (work loss) annual costs associated with Atrial Fibrillation (AFIB) in a privately insured population. BACKGROUND:AFIB is the most common sustained rhythm disturbance, affecting 2.3 million people in the United States. METHODS:Cost and co-morbi...
journal_title:Current medical research and opinion
pub_type: 杂志文章,随机对照试验
doi:10.1185/030079905X65475
更新日期:2005-10-01 00:00:00
abstract:OBJECTIVES:Compare migraine duration with frovatriptan (versus baseline) in migraineurs reporting long- (24-72 h) or short-duration (<24 h) migraines at baseline. METHODS:Post hoc analysis of two postmarketing surveillance studies of migraineurs in German primary care clinics using frovatriptan (2.5 mg) to treat a sin...
journal_title:Current medical research and opinion
pub_type: 杂志文章
doi:10.1185/03007995.2010.503488
更新日期:2010-09-01 00:00:00
abstract:BACKGROUND:Adherence to antihyperglycemic medication is thought to be suboptimal, but the proportion of patients missing doses, the number of doses missed, and reasons for missing are not well described. This survey was conducted to estimate the prevalence of and reasons for missed doses of oral antihyperglycemic medic...
journal_title:Current medical research and opinion
pub_type: 杂志文章
doi:10.1080/03007995.2016.1186614
更新日期:2016-09-01 00:00:00
abstract:BACKGROUND:Persisting pain is demoralising and debilitating for patients and their carers. Most patients with chronic pain do not need the services of a specialised pain clinic and are appropriately managed by their general practitioner (GP). METHOD:Interviewers approached 569 GPs to assess their satisfaction with the...
journal_title:Current medical research and opinion
pub_type: 杂志文章
doi:10.1185/030079903125002478
更新日期:2003-01-01 00:00:00
abstract::A double-blind crossover trial was undertaken to compare the efficacy of sustained-release clonidine and long-acting propranolol in the treatment of 20 patients (8 males and 12 females) with sustained hypertension. Each patient was stabilized with metoprolol with or without diuretic therapy prior to admission to the t...
journal_title:Current medical research and opinion
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1185/03007998209109778
更新日期:1982-01-01 00:00:00
abstract:OBJECTIVES:To compare the efficacy and safety of ciprofloxacin 0.3%/dexamethasone 0.1% (CIP/DEX) otic suspension with that of neomycin 0.35%/polymyxin B 10,000 IU/mL/hydrocortisone 1.0% (N/P/H) otic suspension in patients with acute otitis externa (AOE). STUDY DESIGN:Randomized, observer-masked, parallel-group, multic...
journal_title:Current medical research and opinion
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1185/030079902125004312
更新日期:2004-08-01 00:00:00
abstract:OBJECTIVE:To describe a post hoc analysis comparing the effect of a hyaluronic acid (HA)-trehalose solution to an established eyedrop solution containing HA alone using Ocular Surface Disease Index (OSDI) score <19 as a threshold for moderate to severe dry eye disease (DED). METHODS:A phase III, randomized, controlled...
journal_title:Current medical research and opinion
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1080/03007995.2018.1434496
更新日期:2018-08-01 00:00:00
abstract:PURPOSE:Tamoxifen, used in breast cancer treatment, may induce hepatic steatosis. It has been suggested that leptin, which has a relationship with body fat stores, may be involved in the pathogenesis of hepatic steatosis. In this study, we compared serum leptin levels in tamoxifen-treated patients with and without hepa...
journal_title:Current medical research and opinion
pub_type: 杂志文章
doi:10.1185/030079902125001308
更新日期:2003-01-01 00:00:00
abstract::The pharmacokinetics of Bay g 2821, a new diuretic agent, were studied in dogs, healthy volunteers and in patients with renal insufficiency. The drug was rapidly absorbed after oral administration, peak plasma levels (approx. 0.4 microgram/ml) occurring within 1 hour. Elimination of the unchanged drug from plasma was ...
journal_title:Current medical research and opinion
pub_type: 杂志文章
doi:10.1185/03007997709115271
更新日期:1977-01-01 00:00:00
abstract:OBJECTIVE:To establish a baseline pattern of care across academic and community settings, it is important to examine the contemporary treatment of acromegaly. We characterized medical treatment patterns for acromegaly in the US to develop a basis for tracking concordance with guidelines. RESEARCH DESIGN AND METHODS:Ac...
journal_title:Current medical research and opinion
pub_type: 杂志文章
doi:10.1185/03007995.2015.1125870
更新日期:2016-05-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to determine whether healthy men would prefer either luteinizing hormone releasing hormone analogues (LHRHa) or non-steroidal anti-androgen therapy (NSAA) should they hypothetically develop locally advanced prostate cancer. PARTICIPANTS AND METHODS:A representative sample of 180 men...
journal_title:Current medical research and opinion
pub_type: 杂志文章
doi:10.1185/030079905X59058
更新日期:2005-09-01 00:00:00
abstract::Type 2 diabetes mellitus is a public health problem of epidemic proportions and its prevalence is on the rise. The typical American born today has a one in three chance of developing type 2 diabetes. This diagnosis is associated with an adverse cardiovascular prognosis and is considered the risk equivalent of establis...
journal_title:Current medical research and opinion
pub_type: 杂志文章,meta分析,评审
doi:10.1185/030079905X50606
更新日期:2005-07-01 00:00:00
abstract:OBJECTIVE:To compare the efficacy and safety of epoetin theta and epoetin beta in anaemic patients with chronic kidney disease, undergoing haemodialysis and previously on stable maintenance therapy with epoetin beta. METHODS:In this multicentre, randomised, controlled, double-blind study 270 haemodialysis patients wer...
journal_title:Current medical research and opinion
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1185/03007995.2010.511084
更新日期:2010-10-01 00:00:00
abstract:BACKGROUND:Low back pain in general and specifically chronic low back pain forms a major burden for the patient and society. Recently studies demonstrated that up to 65% of patients evolve to chronic pain as opposed to the previously accepted 8%. As low back pain patients present first with their general practitioner, ...
journal_title:Current medical research and opinion
pub_type: 杂志文章
doi:10.1080/03007995.2016.1220933
更新日期:2016-11-01 00:00:00
abstract:OBJECTIVE:With a growing number of studies and comparators in MRSA skin infections, a unified framework for comparing treatments is needed for health technology assessment (HTA). The objective was to systematically assess the success rates of common antimicrobial agents for the treatment of complicated skin and soft ti...
journal_title:Current medical research and opinion
pub_type: 杂志文章,meta分析,评审
doi:10.1185/03007995.2010.481251
更新日期:2010-07-01 00:00:00
abstract::Women who are diagnosed with early breast cancer remain at considerable risk of recurrence over the next several decades, even if their tumors were small and lymph nodes were negative, and despite receiving standard adjuvant therapy. A majority of breast cancers are hormone (estrogen) receptor-positive and amenable to...
journal_title:Current medical research and opinion
pub_type: 杂志文章,评审
doi:10.1185/030079905X65619
更新日期:2005-12-01 00:00:00
abstract:OBJECTIVE:Several different durable or disposable insulin pen delivery devices are currently available, and newer, improved devices are being introduced. One prefilled insulin device, FlexPen (FP), has recently been improved (known as the Next Generation FlexPen (NGFP) in Europe or the improved FlexPen in the United St...
journal_title:Current medical research and opinion
pub_type: 杂志文章,评审
doi:10.1185/03007995.2010.512447
更新日期:2010-10-01 00:00:00
abstract:BACKGROUND:Obstructive sleep apnea syndrome (OSAS) is mostly seen in adult populations. It is known that increased levels of several inflammatory mediators play roles in OSAS and related comorbidities. Calprotectin is an inflammatory mediator that increases in some diseases such as Behçet's syndrome, bowel diseases and...
journal_title:Current medical research and opinion
pub_type: 杂志文章
doi:10.1080/03007995.2017.1383890
更新日期:2018-03-01 00:00:00
abstract:OBJECTIVE:To determine the effects of long-term atomoxetine treatment on sexual development in children and adolescents with attention-deficit/hyperactivity disorder (ADHD) as compared with placebo and with a national US survey in non-Hispanic white children and adolescents. METHODS:This double-blind, placebo-controll...
journal_title:Current medical research and opinion
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1185/03007995.2011.599372
更新日期:2011-01-01 00:00:00
abstract:BACKGROUND:Resistance to endocrine treatment generally occurs over time, especially in the metastatic stage. In this paper, we aimed to review the mechanisms of cyclin-dependent kinase (CDK) 4/6 inhibition and clinical usage of new agents in the light of recent literature updates. SCOPE:A literature search was carried...
journal_title:Current medical research and opinion
pub_type: 杂志文章,评审
doi:10.1080/03007995.2017.1348344
更新日期:2017-09-01 00:00:00
abstract:OBJECTIVE:To compare clinical characteristics, statin treatment patterns and adherence among patients at different risk for coronary heart disease (CHD) as defined by National Cholesterol Education Program (NCEP) Adult Treatment Panel (ATP) III guidelines. METHODS:Patients ≥ 18 years old with ≥ 1 claim for dyslipidemi...
journal_title:Current medical research and opinion
pub_type: 杂志文章
doi:10.1185/03007995.2014.971151
更新日期:2014-12-01 00:00:00
abstract:OBJECTIVE:To provide clinically relevant information on tadalafil 2.5 or 5 mg once daily for the treatment of erectile dysfunction (ED), by reviewing safety and efficacy study findings. Findings from an integrated analysis of trials of tadalafil 10 and 20 mg as needed are presented to provide context for the daily dosi...
journal_title:Current medical research and opinion
pub_type: 杂志文章,评审
doi:10.1185/03007990802498440
更新日期:2008-12-01 00:00:00
abstract:OBJECTIVE:PREDICTIVE is a multi-national, prospective, observational study, assessing the safety and efficacy of insulin detemir in patients with diabetes. RESEARCH DESIGN AND METHODS:The European cohort includes 20,531 patients with diabetes (7420 type 1) from 11 countries. A subgroup of 4782 type 1 patients were tra...
journal_title:Current medical research and opinion
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1185/030079908x260835
更新日期:2008-02-01 00:00:00
abstract:BACKGROUND:The implementation of international pediatric asthma guidelines hinges on the distinction between intermittent and persistent phenotypes and the prescription of recommended phenotype-specific pharmacotherapy. OBJECTIVES:To ascertain key factors associated with specialist-confirmed phenotype and document phy...
journal_title:Current medical research and opinion
pub_type: 杂志文章
doi:10.1185/03007995.2012.716031
更新日期:2012-09-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to evaluate the safety and clinical efficacy of alcaftadine 0.25% ophthalmic solution, a new topical anti-allergic agent for the prevention of the signs and symptoms of allergic conjunctivitis induced by conjunctival allergen challenge (CAC). STUDY DESIGN AND METHODS:This two-ar...
journal_title:Current medical research and opinion
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1185/03007995.2010.548797
更新日期:2011-03-01 00:00:00