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Biomedical subjects

Steven I Gutman

Publications and source records attributed to Steven I Gutman.

8 recordsLinked to original sources
PubMed2006

Point-of-care biosensor systems for cancer diagnostics/prognostics.

With the growing number of fatalities resulting from the 100 or so cancer-related diseases, new enabling tools are required to provide extensive molecular profiles of patients to guide the clinician in making viable diagnosis and prognosis. Unfortunately with cancer-related diseases, there is not one molecular marker that can provide sufficient information to assist the clinician in making effective prognoses or even diagnoses. Indeed, large panels of markers must typically be evaluated that cut across several different classes (mutations in certain gene fragments--DNA; over/under-expression of gene activity as monitored by messenger RNAs; the amount of proteins present in serum or circulating tumor cells). The classical biosensor format (dipstick approach for monitoring the presence of a single element) is viewed as a valuable tool in many bioassays, but possesses numerous limitations in cancer due primarily to the single element nature of these sensing platforms. As such, if biosensors are to become valuable tools in the arsenal of the clinician to manage cancer patients, new formats are required. This review seeks to provide an overview of the current thinking on molecular profiling for diagnosis and prognosis of cancers and also, provide insight into the current state-of-the-art in the biosensor field and new strategies that must be considered to bring this important technology into the cancer field.

Biomarkers, Tumor↗
PubMed2006

FDA perspectives on potential microarray-based clinical diagnostics.

The US Food and Drug Administration (FDA) encourages the development of new technologies such as microarrays which may improve and streamline assessments of safety and the effectiveness of medical products for the benefit of public health. The FDA anticipates that these new technologies may offer the potential for more effective approaches to medical treatment and disease prevention and management. This paper discusses issues associated with the translation of nucleic acid microarray-based devices from basic research and target discovery to in vitro clinical diagnostic use, which the Office of In Vitro Diagnostic Device Evaluation and Safety in the Center for Devices and Radiological Health foresees will be important for assurance of safety and effectiveness of these types of devices. General technological points, assessment of potential concerns for transitioning microarrays into clinical diagnostic use and approaches for evaluating the performance of these types of devices will be discussed.

DNA↗
PubMed2005

Food and Drug Administration regulation of in vitro diagnostic devices.

The Food and Drug Administration regulates the sale and distribution of laboratory devices under a statutory and regulatory framework that is unfamiliar to most clinical laboratory scientists. In this article we briefly describe the criteria that are used to classify and review in vitro diagnostic devices. We discuss the similarities and differences between devices that are not subject to premarket review, and those that are required to undergo either a premarket application or premarket notification [510(k)] pathway. We then discuss the methods that the Food and Drug Administration uses to assess the performance of in vitro diagnostic devices in the marketplace as a component of the total life cycle approach to medical device regulation.

Device Approval↗
PubMed2005

FDA perspectives on pharmacogenetic testing.

The field of pharmacogenetic testing is emerging as a topic of interest for many, due to its potential to improve patient care and optimize therapeutic development. The US Food and Drug Administration is interested in incorporating pharmacogenetics into development activities whenever appropriate to protect and promote public health. This article is intended to reflect the opinions of the Office of In vitro Diagnostic Device Evaluation and Safety in the Center for Devices and Radiological Health on some issues associated with developing in vitro diagnostic devices for use in pharmacogenetics. General points and potential issues related to the analytical and clinical validation of these types of devices will be discussed.

Health↗
PubMed2004

Consumers report glucose meter problems to FDA.

OBJECTIVE: Glucose meters have unquestionable clinical utility, particularly in management of diabetes mellitus. U.S. Food and Drug Administration (FDA) surveillance activities include monitoring adverse event reports from healthcare professionals, manufacturers, and lay users. METHODS: To gain insight into problems reported to FDA on glucose meters, we analyzed reports received over a 3-year period (2000-2002) from all sources (mandatory and voluntary) and focused on reports from users. RESULTS: The vast majority of in vitro diagnostic device (IVD) reports (84%, n = 18,959) were on glucose meters, with 333 glucose meter reports from users. Among the user reports, the most common problems were false high or low values and erratic values. Unique issues reported included purchase of incorrect glucose meter strips, calibration problems, and misunderstanding how FDA regulates glucose device performance. CONCLUSION: The FDA gains valuable insight from and encourages user reports.

Blood Glucose Self-Monitoring↗
PubMed2002

Medical applications of microarray technologies: a regulatory science perspective.

The potential medical applications of microarrays have generated much excitement, and some skepticism, within the biomedical community. Some researchers have suggested that within the decade microarrays will be routinely used in the selection, assessment, and quality control of the best drugs for pharmaceutical development, as well as for disease diagnosis and for monitoring desired and adverse outcomes of therapeutic interventions. Realizing this potential will be a challenge for the whole scientific community, as breakthroughs that show great promise at the bench often fail to meet the requirements of clinicians and regulatory scientists. The development of a cooperative framework among regulators, product sponsors, and technology experts will be essential for realizing the revolutionary promise that microarrays hold for drug development, regulatory science, medical practice and public health.

Forecasting↗
PubMedDate not supplied

Introduction to the Food and Drug Administration (FDA) regulatory process.

FDA oversight of medical devices, including in vitro diagnostic devices (IVDs or laboratory tests), in the United States was a direct result of the passage of the Medical Device Amendments of 1976. This law introduced a series of general controls for medical devices including registration and listing, requirements for production using good manufacturing practices, and requirements for post-market reporting of device failures. This produced for the first time a menu of laboratory tests on the market, a system to ensure these were produced consistently over time, and a mechanism for FDA to identify problems with device use and to work with companies to ensure corrective action. This law also introduced the requirement for premarket review of new versions of old devices and of fundamentally new medical devices.

Animals↗