Zynex, Inc. announced it has started enrollments in an ongoing apheresis clinical trial with its second-generation fluid monitoring system, the CM-1600. The study monitors subjects during an apheresis procedure with the predicate device, the CM-1500, and now also the CM-1600, to refine the system's patented Relative Index in a wide array of patient circumstances. To date, 53 subjects have been enrolled in the study.

Zynex's second generation blood and fluid monitoring device has been introduced to the study to evaluate its sensitivity and accuracy in the same environment. The CM-1500 was cleared by the FDA in February of 2020 while the CM-1600 is still awaiting FDA clearance. The study is expected to complete enrollments in the fourth quarter of 2022.