Accurate and efficient assessment of outcomes is central to medical device innovation, evaluation andsurveillance. Administrative claims could facilitate prospective device evaluations in older individuals if healthoutcomes of interest (HOIs) are reliable. Various HOI ascertainment tools, including site-based reporting andpatient-reporting are commonly used without rigorous evaluation. Each increases resource utilization vs.
cl aims -based HOI assessment without a clear demonstration of added value, particularly in older cohorts. Existing predicates using procedure-oriented national registries for evaluation of coronary stents,defibrillators and prosthetic heart valves already demonstrate efficiencies with high impact potential for deviceinnovation over the total product life cycle. Extension of these efforts to long-term outcomes databases suchas claims data, if reliable, would integrate these efficiencies for a far broader scope of device applications. Recently, both the Observational Medical Outcomes Partnership (OMOP) and the Mini-Sentinel groupshave highlighted limitations of existing claims-based HOI ascertainment algorithms. Previous HOI validationefforts for myocardial infarction, stroke, heart failure, and bleeding have had limited ability to distinguishbetween incident and prevalent disease, to establish accuracy estimates within subgroups, or to assessadverse events absent re-hospitalization. In addition, existing claims-based HOI ascertainment algorithms relysolely on diagnostic codes, and the extent to which procedural billing codes would enhance their precision andaccuracy is unknown. Enhanced efficiency cannot serve device evaluation without validated accuracy. This proposalapplies a novel linkage of existing in-house clinical and claims data to provide a cost- and time-efficientevaluation of claims-based HOI ascertainment versus 'gold standard' CEC adjudicated outcomes. This studyproposal is structured in 3 phases to progressively leverage deliverables through 3 potential years of funding. In PHASE 1 of this study (year 1), we will refine and validate administrative claims-based HOI codingalgorithms using a novel linkage between Medicare claims data and existing clinical trial and registry records.In PHASES 2 and 3 (years 2 and 3, respectively), we will apply these refined mechanisms of HOIascertainment to the conduct of both 1) the longitudinal surveillance of transcatheter aortic valve replacement(TAVR) prostheses using available unique device identifiers (UDI), and 2) a pragmatic registry-based clinicaltrial that builds on the successful piloting of the National Cardiovascular Research Infrastructure (NCRI) by theSAFE-PCI for Women Trial. This proposal expands and strengthens existing research collaborations and infrastructure for theperformance of medical device surveillance and registry-based randomized clinical trials.
The accurate and efficient assessment of health outcomes of interest (HOIs) is the foundation of medical device testing and surveillance. This study will evaluate and refine efficient methods for HOI ascertainment; then, it will apply these methods in the development of 1) a national surveillance system for transcatheter valve prostheses, and 2) a pragmatic registry-based IDE randomized clinical trial