BACKGROUND Subject recruitment for medical research is challenging. Slow patient accrual leads to increased costs and delays in treatment advances. Researchers need reliable tools to manage and predict the accrual rate. The previously developed Bayesian method integrates researchers' experience on former trials and data from an ongoing study, providing a reliable prediction of accrual rate for ...

Investigators need good statistical tools for the initial planning and for the ongoing monitoring of clinical trials. In particular, they need to carefully consider the accrual rate-how rapidly patients are being recruited into the clinical trial. A slow accrual decreases the likelihood that the research will provide results at the end of the trial with sufficient precision (or power) to make m...

Using data collected as part of a larger evaluation of the National Cancer Institute-funded Community Clinical Oncology Program (CCOP), this paper examines the degree to which selected community, interorganizational, and structural characteristics associated with accrual to cancer treatment protocols share equal importance in accruing patients to cancer prevention and control research protocols...

BACKGROUND Poor accrual is a significant barrier to the successful completion of oncology clinical trials; half of all phase 3 oncology trials close due to insufficient accrual. Timely access to accrual data fosters an understanding of successful trial design and can be used to inform the design of new clinical trials prospectively. Accrual statistics are available within research networks, suc...

Objective To provide brief guidance on how to design accrual monitoring activities in a clinical trial protocol. Setting Two completed clinical trials that did not achieve the planned sample size, the Cost of Strategies After Myocardial Infarction (COSTAMI) trial and the Biventricular Pacing After Cardiac Surgery (BiPACS) trial. Design A Bayesian monitoring tool, the constant accrual model,...

SUMMARY With advances in medical research, effective treatments are becoming standard of care for many diseases. Consequently, when testing a new treatment, the sample size in a clinical trial is on the rise in order to demonstrate a moderate, yet clinically meaningful, improvement in therapeutic effect (compared to an active control), which often makes it impossible to enroll all patients from...

Earnings management is an important part of current accounting studies. Many of those studies concentrate on accruals. This study critically evaluates frequently used accrual models. The Jones model was the first econometric approach to estimating discretionary accruals. Even though it is subject to several limitations, such as model misspecification, omitted-variables, and errors-in-variables ...

Patient accrual is essential for the success of oncology clinical trials. Recruitment for trials involving the development of quantitative imaging biomarkers may face different challenges than treatment trials. This study surveyed investigators and study personnel for evaluating accrual performance and perceived barriers to accrual and for soliciting solutions to these accrual challenges that a...

Motivated by the findings that the aggregate (discretionary) accruals positively predicts oneyear-ahead firm-level stock returns and that there is a considerable amount of co-movement in firm-level (discretionary) accruals, we decompose firm-level (discretionary) accruals into a market-wide component and a firm-specific component. We document robust evidence that the two orthogonal (discretiona...

OBJECTIVES To determine factors associated with damage accrual in a prospective cohort of patients with SLE. METHODS Patients with SLE who attended the Lupus Clinic at Monash Health, Australia, between 2007 and 2013 were studied. Clinical variables included disease activity (Systemic Lupus Erythematosus Disease Activity Index-2K, SLEDAI-2K), time-adjusted mean SLEDAI, cumulative glucocorticoi...