Abstract:
:Double-blinding is an important and widely implemented feature of clinical trials although its success is rarely assessed. In a randomized, placebo-controlled trial of tea tree oil, an aromatic essential oil, for the treatment of recurrent herpes labialis (RHL), or cold sores, deception was used to prevent volunteers from identifying their treatment allocation. Volunteers received placebo (n=102) or tea tree oil (n=112) ointment in preparation for their next episode of RHL and were told, falsely, that the aroma of the ointments had been changed to prevent identification of the treatment group. At the trial's end, of the volunteers who had used their ointment and presented for treatment assessment (n=100), approximately 50% correctly guessed their treatment allocation (P=0.774). Amongst volunteers that had not presented for treatment assessment (n=114), 12 volunteers did not provide blinding data and 46 did not open their tube. For the 56 volunteers who opened their tube, less than half of those receiving tea tree oil (44.4%) and only a small proportion of those on placebo (17.2%) were able to correctly identify their treatment allocation. Among the volunteers that were not treated, the P-value was 0.083. This study showed that the ethical use of deception may provide effective blinding in challenging circumstances.
journal_name
Contemp Clin Trialsjournal_title
Contemporary clinical trialsauthors
Carson CF,Smith DW,Lampacher GJ,Riley TVdoi
10.1016/j.cct.2007.04.006subject
Has Abstractpub_date
2008-01-01 00:00:00pages
9-12issue
1eissn
1551-7144issn
1559-2030pii
S1551-7144(07)00053-5journal_volume
29pub_type
杂志文章abstract::The fraction of patients who respond to treatment and the duration of response in the subset of responding patients are commonly evaluated in oncology trials of cytotoxic compounds. While formal, comparative analysis of the fraction of patients responding to treatment is straightforward in a randomised trial, analyses...
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2007.10.008
更新日期:2008-07-01 00:00:00
abstract:BACKGROUND:Patients with progressive kidney disease experience increasing physiologic and psychosocial stressors and declining health-related quality of life (HRQOL). METHODS:We conducted a randomized, active-controlled, open-label trial to test whether a Mindfulness-based Stress Reduction (MBSR) program delivered in ...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2017.03.014
更新日期:2017-06-01 00:00:00
abstract::In order to better characterize the safety profile of investigational new drugs (INDs) during clinical development, more interest and attention have been paid to ongoing safety monitoring and evaluation. The 2015 US FDA IND safety reporting draft guidance compels sponsors to periodically evaluate unblinded safety data...
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2019.06.022
更新日期:2019-08-01 00:00:00
abstract:BACKGROUND:Evaluation of new therapies for cancer has suffered a paradigm shift in the last years. The use of innovative and more efficient designs is a priority for the scientific community; nevertheless, the use of this kind of design is not yet wide spread. PURPOSE:In this paper will examine the effectiveness of ad...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,评审
doi:10.1016/j.cct.2011.09.017
更新日期:2012-01-01 00:00:00
abstract::Growing Right Onto Wellness (GROW) is a randomized controlled trial that tests the efficacy of a family-centered, community-based, behavioral intervention to prevent childhood obesity among preschool-aged children. Focusing on parent-child pairs, GROW utilizes a multi-level framework, which accounts for macro (i.e., b...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2013.08.013
更新日期:2013-11-01 00:00:00
abstract:BACKGROUND:Despite significant advancements in psychopharmacology, treating major depressive disorder (MDD) is still a challenge considering the efficacy, tolerability, safety, and economical costs of most antidepressant drugs. One approach that has been increasingly investigated is modulation of cortical activity with...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2010.09.007
更新日期:2011-01-01 00:00:00
abstract:OBJECTIVE:Our goal is to test the efficacy of a family-based, multi-component intervention focused on infants of African-American (AA) mothers and families, a minority population at elevated risk for pediatric obesity, versus a child safety attention-control group to promote healthy weight gain patterns during the firs...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2017.06.002
更新日期:2017-09-01 00:00:00
abstract::Missing data is common in clinical trials. Depending on the volume and nature of missing data, it may reduce statistical power for detecting treatment difference, introduce potential bias and invalidate conclusions. Non-responder imputation (NRI), where patients with missing information to determine endpoint status ar...
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2020.106226
更新日期:2020-11-22 00:00:00
abstract::The Rare Diseases Clinical Research Network (RDCRN) Contact Registry has grown in size and scope since it was first reported in this journal in 2007. In this paper, we reflect on our seven years' experience developing and expanding the RDCRN Contact Registry to include many more rare diseases. We present the functiona...
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2012.02.012
更新日期:2012-07-01 00:00:00
abstract:INTRODUCTION:Breast cancer survivors face dual challenges: long term sequelae of treatment, and risk of recurrent disease. Obesity and a sedentary lifestyle complicate both challenges. The WISER Survivor trial assessed the effects of exercise and/or weight-loss on lymphedema, biomarkers of breast cancer recurrence, and...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2017.07.017
更新日期:2017-10-01 00:00:00
abstract:BACKGROUND/AIMS:Cocaine use disorder (CUD) persists as a major public health problem in the United States. Response to evidence-based behavioral treatment has been shown to be predicted by dopaminergic dysfunction. Amphetamine formulations modulate dopaminergic systems and are one of the few agents with positive clinic...
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2020.106187
更新日期:2020-11-01 00:00:00
abstract::The Flexibility, Toning, and Balance (FlexToBa) Trial is a two-armed randomized controlled trial which will contrast the effects of a DVD-delivered, home-based, physical activity intervention and a Healthy Aging attention control condition on physical activity, functional performance, functional limitations, and quali...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.cct.2011.10.002
更新日期:2012-01-01 00:00:00
abstract::Among children with asthma, black children are two to four times as likely to have an emergency department (ED) visit and die from asthma, respectively, compared to white children in the United States. Despite the availability of evidence-based asthma management guidelines, minority children are less likely than white...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2017.03.015
更新日期:2017-06-01 00:00:00
abstract::Thirty percent of all military personnel smoke cigarettes. Because of the negative health consequences and their impact on physical fitness, overall health, and military readiness, the Department of Defense has identified the reduction of tobacco use as a priority of US military forces. This study aims to evaluate the...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2012.04.009
更新日期:2012-09-01 00:00:00
abstract:BACKGROUND:Despite controversy about paying research subjects, little is known about actual practices in the U.S., including what type of studies offer payment, to what type of subjects, and how amounts are determined. OBJECTIVE:To document current U.S. practices regarding payment to research subjects. METHODS:The pr...
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2005.02.003
更新日期:2005-06-01 00:00:00
abstract:BACKGROUND:Despite evidence that palliative care increases quality and length of life, many patients and families remain uninformed about its nature and benefits. The purpose of this study is to test a psycho-educational intervention, Managing Cancer Care: A Personal Guide (MCC), intended to improve breast cancer patie...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2016.04.009
更新日期:2016-05-01 00:00:00
abstract::Suicide remains the 10th leading cause of death among adults in the United States (U.S.). Annually, approximately 30 per 100,000 U.S. military Veterans commit suicide, compared to 14 per 100,000 U.S. civilians. Symptoms associated with suicidality can be treatment resistant and proven-effective pharmaceuticals may hav...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2016.02.002
更新日期:2016-03-01 00:00:00
abstract:BACKGROUND:Mammographic breast density is one of the strongest risk factors for breast cancer after age and family history. Mandatory breast density disclosure policies are increasing nationally without clear guidance on how to communicate density status to women. Coupling density disclosure with personalized risk coun...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.cct.2017.02.009
更新日期:2017-05-01 00:00:00
abstract:BACKGROUND:In 2007, we commenced the Healthy Beginnings Trial (HBT) Phase 1 study, which is the first randomised controlled trial (RCT) to test the effectiveness of an early childhood obesity intervention in children aged up to 2 years. The results were promising with significant improvements in infant feeding practice...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.cct.2011.11.008
更新日期:2012-03-01 00:00:00
abstract:OBJECTIVE:To explore a better administration way through comparison of the pharmacodynamics of cisatracurium administered by continuous infusion or intermittent bolus injection. METHODS:Thirty patients (ASAI-II) who had no neuromuscular disease and underwent selective surgery under general anesthesia were randomly div...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2012.01.002
更新日期:2012-05-01 00:00:00
abstract:INTRODUCTION:In promoting the health of chronically ill children, the hospital should help children cope both medically and psychosocially with their disease. The University Children's Hospital of Nancy proposes adapted physical activity for hospitalized children, but the practice during hospitalization is not well dev...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2009.12.003
更新日期:2010-03-01 00:00:00
abstract:BACKGROUND:Current guidelines recommend behavioral intervention to achieve a modest weight loss (e.g., 3-5%) as a first-line obesity treatment. Online behavioral obesity treatment, delivered via the Rx Weight Loss (RxWL) program, produces clinically significant initial weight losses. However, the program's pragmatic ut...
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2019.05.003
更新日期:2019-07-01 00:00:00
abstract:BACKGROUND:The translation of research evidence into practice is facilitated by clinical trials such as those sponsored by the National Cancer Institute's Community Clinical Oncology Program (CCOP) that help disseminate cancer care innovations to community-based physicians and provider organizations. However, CCOP part...
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2012.08.008
更新日期:2012-11-01 00:00:00
abstract::Patients with malignant disease enrolled in trials of thrombotic disorders may experience competing events such as death. The occurrence of a competing event may prevent the thrombotic event from being observed. Standard survival analysis techniques ignore competing risks, resulting in possible bias and distorted infe...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2011.07.005
更新日期:2011-11-01 00:00:00
abstract:UNLABELLED:Latinos bear a disproportionate burden of the dual pandemic of obesity and diabetes. However, successful interventions addressing this disparity through primary care are lacking. To address this gap, the 5-year Vida Sana (Healthy Life) study tests a culturally adapted and technology-enhanced group-based Diab...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2016.03.003
更新日期:2016-05-01 00:00:00
abstract:INTRODUCTION:Focal therapy (FT) targets individual areas of cancer within the prostate, providing oncological control with minimal side-effects. Early evidence demonstrates encouraging short-medium-term outcomes. With no randomized controlled trials (RCT) comparing FT to radical therapies, Comparative Healthcare Resear...
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2020.105999
更新日期:2020-06-01 00:00:00
abstract::Several randomized trials have found behavior change programs delivered via text messaging to be efficacious to improve preventive health behaviors such as physical activity and stopping smoking; however few have assessed its value in skin cancer prevention or early detection. The HealthyTexts study enrolled 678 parti...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2013.03.009
更新日期:2013-05-01 00:00:00
abstract::Traditionally, children presenting with appendicitis are referred for urgent appendectomy. Recent improvements in the quality and availability of diagnostic imaging allow for better pre-operative characterization of appendicitis, including severity of inflammation; size of the appendix; and presence of extra-luminal i...
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2019.06.013
更新日期:2019-08-01 00:00:00
abstract:BACKGROUND:In the past 20-30 years, the prevalence of atopic diseases, particularly among children in the Western world, has increased. It has been suggested that Western lifestyle may have reduced the overall exposure to microbial stimulation early in life. The role of the gut flora in this connection has been studied...
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2006.02.009
更新日期:2006-08-01 00:00:00
abstract::While investigators designing clinical trials face the important issue of endpoint selection, an equally troublesome concern can be the a priori selection of the endpoint analysis. In this latter circumstance, there may be only one endpoint of interest in the clinical trial, but several competing endpoint analyses are...
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2006.05.010
更新日期:2007-01-01 00:00:00