Smart Patch for Real-Time Antibiotic Monitoring Reduces Side Effects
A new approach to administering high-risk antibiotics could dramatically improve patient safety and treatment efficacy. Researchers have developed a smart patch capable of tracking medication concentration in the body in near real-time, potentially eliminating the need for frequent and invasive blood draws.
The Challenge of Vancomycin Dosage
Vancomycin, a powerful antibiotic frequently used in hospital settings, presents a significant dosing challenge. It’s employed in treating severe infections resistant to other therapies, and when infections have spread through the bloodstream. Too little vancomycin can render the treatment ineffective, while an excessive dose can lead to severe kidney damage, or even prove fatal.
Kidney Damage a Significant Risk
Currently, up to 40% of patients receiving vancomycin experience some form of acute kidney injury. Traditional monitoring relies on repeated blood tests, a process that is both time-consuming and invasive, and doesn’t always provide timely data for optimal dose adjustments.
A Smart Patch for Real-Time Monitoring
Researchers at the University of New South Wales (UNSW), in collaboration with the Australian technology company Nutromics, have created a potential solution. Their innovative patch measures antibiotic levels every five minutes, offering a continuous stream of data without the need for repeated venipunctures.
Results from a clinical study, published in Nature Biotechnology, demonstrate that the key scientific and safety hurdles have been overcome. The patch employs these aptamers integrated into micro-needles that gently collect fluid from just beneath the skin’s surface.
Patient Comfort and Versatility
Study participants reported the patch application was nearly painless, a significant improvement over traditional blood draws. The technology is also adaptable for monitoring other medications or biological markers, and Nutromics is already exploring similar patches for other conditions.
Potential Applications Beyond Vancomycin
The study’s authors highlight the potential of this approach in critical clinical situations, such as sepsis, where symptoms can be non-specific and delayed treatment increases the risk of death. Rapid measurement of specific markers could facilitate quicker initiation of appropriate treatment.
Initial studies on aptamers as diagnostic tools were conducted on animal models. The partnership with the Australian diagnostics company enabled the translation of laboratory research into a device suitable for clinical production and use.
Looking Ahead
Clinical trials with the smart patch are currently underway in intensive care units in Australia. The company anticipates seeking regulatory approval from authorities in the United States next year and is investigating the adaptation of the technology for other medical fields, including cardiology and rapid triage in emergency rooms.
Frequently Asked Questions
What is vancomycin used to treat?
Vancomycin is an antibiotic used in hospitals to treat severe infections that are resistant to other treatments, or when an infection has spread to the bloodstream.
How does the smart patch work?
The patch uses sensors based on synthetic DNA, called aptamers, to measure the level of the antibiotic in the fluid under the skin every five minutes.
What are the potential benefits of using this patch?
The patch could allow for faster and more accurate dose adjustments of vancomycin, potentially reducing kidney damage and improving treatment outcomes, while also being more comfortable for patients than traditional blood draws.
As this technology advances, how might continuous, real-time monitoring reshape the future of antibiotic stewardship and patient care?