OPKO Health, Inc. announced the initiation of a multi-center clinical validation study for the company’s proprietary Total PSA microfluidic assay cassette running on the Claros® 1 in-office immunoassay analyzer. Over the next several months, the Total PSA clinical study will enroll approximately 1,000 patients at 15 sites across the United States. The clinical study data is expected to support the Premarket Approval (PMA) application to the FDA for the Total PSA assay and the Claros 1 analyzer, as well as pave the way for future FDA submissions of additional assays to be performed on the Claros 1 instrument. At the heart of the Claros 1 platform is the patented microfluidics and gold nanoparticle signal amplification technology that combine to deliver accurate, high sensitivity results – from a fingerstick drop of blood – in approximately 10 minutes.