Comparing Blood Test Devices for Newborns: ABL90 FLEX PLUS Study

June 30, 2025 updated by: Radiometer Medical ApS

This important clinical study compares two versions of a medical device called ABL90 FLEX PLUS that analyzes blood samples from newborn babies. The research focuses on how well the newer version (SW3.5 MR2) measures two specific blood components - bilirubin (ctBil) and fetal hemoglobin (FHbF) - compared to the older version (SW 3.1 MR7) that doctors currently use.

The study involves collecting small blood samples (just 65 microliters) from babies who are 28 days old or younger. Researchers will test each sample with both devices to see if the new version gives similar results to the approved version doctors trust. This is especially important because accurate bilirubin measurements help detect jaundice, and fetal hemoglobin levels provide crucial information about a newborn's health.

About 129 newborn babies will participate across multiple medical centers. The study will last approximately 6-12 months, depending on how quickly enough babies join. Parents or legal guardians must give permission for their baby to participate, and doctors will carefully evaluate whether each baby can safely be in the study.

Researchers can't include babies who: might be at risk from the small blood draw, have parents who withdraw permission, or have recently taken certain medications that could affect test results. The study also excludes babies who have already provided good comparison samples for both tests.

Why does this matter? Newborns often need blood tests, but their tiny bodies make sample collection challenging. Devices that work well with very small blood samples help avoid multiple needle sticks. Plus, when hospitals upgrade equipment, they need proof that new devices are at least as good as what they're replacing - especially for delicate newborns.

For parents, this research means future blood tests for their babies might be: more comfortable (needing less blood), more accurate, and faster (results in just 35 seconds). The study also helps ensure that when hospitals get new equipment, it meets strict quality standards before being used on vulnerable newborns.

This type of medical device comparison is common but crucial. Before approving new versions, regulatory agencies like the FDA require thorough testing showing they perform as well as existing devices. For newborn care specifically, even small improvements in testing can make a big difference in early detection of health issues.

The research team will primarily look at how much the two devices' results differ at key measurement levels doctors use for medical decisions. They'll also examine differences at individual hospitals to account for any location-specific factors. All this information will help determine whether the newer ABL90 FLEX PLUS model performs reliably for newborn care.

While this might seem like technical research, it directly impacts the quality of care newborns receive. Better, more reliable testing means doctors can make more accurate diagnoses and treatment decisions during those critical first days of life. For parents, it means greater confidence in their baby's test results during an already stressful time.

Studies like this represent an important bridge between medical innovation and patient safety. They allow hospitals to adopt improved technology while ensuring no compromise in care quality - especially vital for our most vulnerable patients.

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