This report examines the nature, importance, and reasons for the gaps between what we know from research, what we need to know, and what we do in the clinic: research-practice gaps. It also makes suggestions for how to narrow these gaps. Patients, families, clinicians, care system managers, regulators, health care policy makers, and payers are all stakeholders in patient-oriented research. Different types of patient-oriented research address their diverse interests. For example, regulators and industry sponsors focus largely on efficacy and safety issues for new medications and devices via phase 1-3 studies. Clinicians and patients want to know how, when, for whom, and under what conditions both new and current treatments are best provided-questions not addressed by trials conducted for regulatory approval. Managers and policy makers understandably want to know about tradeoffs and costs, especially the value added (or not) by new, potentially more expensive treatments. This report will focus on patient and clinician perspectives, which substantially overlap. Figure 1A summarizes common clinical tasks such as screening, diagnosing, treatment targeting, and monitoring outcomes. Treatment targeting entails the selection of the best treatment for specific patients or, conversely, the avoidance of treatments that are rather certain to fail for specific patients (the core of personalized medicine).
WHY ARE THERE RESEARCH-PRACTICE GAPS?Both conceptual and operational factors contribute to these gaps. Conceptual challenges include historical factors; scientific and academic incentives; intellectual silos among clinicians, researchers, and other stakeholders; and the failure to adequately recognize and address the tension entailed in nomothetic and ideographic perspectives in the development, reporting, and application of evidence. Operational challenges include budgets, funding priorities, costs, publication practices, and the growing research burdens placed on both patients and researchers.
Conceptual FactorsHistorical assumptions. We have generally assumed that mental health, medical, and surgical practitioners, once armed with a new clinical test or treatment, will figure out by clinical experience how to best use it. Clinical experience would result in consequent wisdom (ie, the "art of medicine"), so research would not be needed.Once, the surprisingly wide practice variations were recognized. The potential benefit of reducing ineffective or unsafe variations was clear. Practice guidelines were developed to summarize the evidence and recommend evidence-based practices. These recommendations, while helpful, have been of limited value due to the dearth of empirical evidence regarding who, how, when, and in what contexts any specific treatment or clinical test should be selected, avoided, placed in a sequence, combined, or otherwise personalized. This evidence is often just not available.Scientific and academic incentives. Historically, academic incentives have been highly focused on individual researchers, but this fo...