The U.S. FDA recently convened an advisory committee to address accuracy issues with pulse oximetry devices, with a significant focus on skin pigmentation as a source of noise in the results generated by these class II devices. However, a number of other factors, including obesity and finger size/diameter, also cloud the values generated by pulse oximeters, all of which combine into a large set of variables that premarket studies may have to address before the FDA will issue new marketing authorizations.
A U.S. FDA advisory panel saw a number of problems in the clinical trial for the Avertd test for opioid use disorder (OUD), including the fact that the study failed to enroll a sufficiently ethnically diverse body of subjects. Perhaps more damning was that the advisory panel was uncertain as to whether the 15 single nucleotide polymorphisms (SNPs) evaluated in the test were helpful in sorting out which patients were truly at high risk of OUD, leading to an 11-2 vote that the probable benefits of the test do not outweigh the risks.
The U.S. FDA’s two-day meeting of the patient engagement advisory committee (PEAC) covered a range of issues surrounding augmented reality (AR) and virtual reality (VR) products, but patient information and education was one of the key considerations. Naiem Nassiri of Yale Medicine cautioned, however, that a 15-minute briefing between doctor and patient during a face-to-face encounter would likely create more confusion than clarity, a conclusion that would suggest that other patient education methods will likely be needed.
Endovascular stent grafts for abdominal aortic aneurysms don’t generate the fanfare that other circulatory system devices create, but an FDA advisory panel recently made some extensive recommendations regarding postmarket follow up for these devices.
The FDA has posted an advisory regarding robotically assisted surgery (RAS) for mastectomy, but the agency also pointedly noted that it is aware of studies underway for such indications without the appropriate oversight. The FDA did not name Intuitive Surgical Inc. in the notice, but the company nonetheless responded to the FDA statement by confirming the absence of any devices thus approved or cleared. The FDA had previously issued a Feb. 28, 2019, advisory stating that the safety and efficacy of RAS devices for mastectomy and the prevention or treatment of breast cancer had not been established.
The FDA issued an advisory about the use of thermal imaging systems as screening instruments for the COVID-19 pandemic landing the same day as a warning letter to Certify Global Inc. The agency’s concern is that these systems are being used without consideration for the limitations, including that they are not appropriate for mass screenings due to inaccurate findings that could elevate the risk of spread of the SARS-CoV-2 virus.
The latest global regulatory news, changes and updates affecting medical devices and technologies, including: FDA posts advisory for respiratory splitters; NICE: Propel device not ready for routine use; MITA sounds off on third parties with white paper; Ethicon, AIM settle on Esutures sales.