The FDA has published an updated guidance for the appeals process at the Center for Devices and Radiological Health, but the issuance of that guidance did not happen in a vacuum. Mark Duval, president of Duval & Associates in Minneapolis, told BioWorld that industry is filing more appeals of premarket decisions of late, an uptick he said is an artifact of the practice of FDA reviewers more commonly asking for additional data for these applications.

Medtronic plc has launched a single-use device for outpatient-based treatment of chronic, obstructive Eustachian tube dysfunction (ETD). Medtronic’s FDA-approved Nuvent system is a manually controlled balloon catheter for insertion into the Eustachian tube canal. Once pressurized, the balloon expands and dilates the Eustachian tube canal to relieve symptoms of ETD.

The U.S. FDA’s device center has posted a report on premarket review performance metrics under the current device user fee schedule, and the latest data show an 83% rate of deficiency in first-cycle reviews of PMA original filings in the last three months of calendar year 2021. That rate is down somewhat from the 91% rate seen in 2016, but is up substantially from the 63% major deficiency rate seen in 2018, the low-water mark for this metric for more than a decade.

With a round of conference presentations and a new marketing program launched this week, Sight Sciences Inc. kicked off a focused effort to increase awareness of its Omni surgical system’s FDA clearance for glaucoma procedures performed independently of cataract surgery. The coordinated push aims to further boost revenues, which saw an estimated 65% increase compared to 2020 and 12% increase quarter-on-quarter, based on preliminary fourth quarter and fiscal year 2021 results.

A needle-free injection system for patients with diabetes developed by Nugen Medical Devices Inc. has been approved for use in 40 countries but until now has yet to crack the North American market. Nugen said it is now gearing up for FDA and Mexican approval of the Nugen MD needle-free injector following Health Canada’s approval of the system less than a month after the Toronto med tech went public in late 2021.

Oxford Biodynamics plc is launching its clinical assay Episwitch CIRT in the U.S. following clinical validation that demonstrated the 3D genomic eight biomarker panel can predict a cancer patient’s response to immune checkpoint inhibitor (ICI) therapy at up to 93% sensitivity, 82% specificity and 85% accuracy. ICIs are currently used against more than 15 types of cancer but less than one in three patients show any benefit from the treatment.

The U.S. Federal Trade Commission has signed off on an amendment to the divestiture plan for Boston Scientific Corp. (BSX), of Marlborough, Mass., related to the acquisition of British Technology Group plc (BTG).

Neurosigma Inc. has received FDA breakthrough device designation for its Monarch ETNS system to treat drug-resistant epilepsy (DRE). The neuromodulation therapy uses noninvasive external trigeminal nerve stimulation (ETNS) to treat neurological and neuropsychiatric indications. The technology is currently commercialized for pediatric ADHD treatment.

Noninvasix Inc. received a breakthrough device designation from the FDA for its noninvasive Livox central venous oxygenation monitor, which allows real-time monitoring of central venous oxygen saturation (ScvO2) in patients at risk of septic shock. The Noninvasix optoacoustic platform consists of a disposable patient interface with a reusable probe, data display and hardware.