July 3, 2018

Seeing Asthma Differently with the 4Dx Scanner

Targeting specific airways instead of overall airflow

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Cleveland Clinic Lerner Research Institute was recently awarded funding from the National Institutes of Health (NIH) to purchase a leading-edge preclinical scanner from 4Dx Limited, a Melbourne-based medical technology company, to investigate the causes and treatment of asthma. Cleveland Clinic becomes only the second institution in the world to own a 4Dx preclinical scanner (joining Cedars-Sinai Medical Center, Los Angeles), and the first to use it in the study of asthma. This new technology will push forward Cleveland Clinic’s asthma program, which is already one of the strongest and most funded in the country.

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Asthma is a heterogeneous group of diseases. The specific airways that are affected vary from patient to patient and between types of asthma. Although researchers and clinicians have long known that asthma presents differently in different airways, the disease is diagnosed using a breath test that measures the average air flow in all airways. While this diagnostic approach is accurate, it cannot identify subregions of the disease process.

Kewal Asosingh, PhD, principal investigator for the NIH grant, believes the preclinical scanner — which works by analyzing X-ray images to measure air flow throughout each of the lungs’ airways — may transform how asthma severity is evaluated. “It will help physicians monitor the specific airways involved in asthma accurately, which will enable us to understand and treat the disease in a more targeted manner,” he says.

The team at Lerner Research Institute will use the scanner to test in preclinical models drugs currently approved to manage and treat asthma, as well as new compounds developed at Cleveland Clinic. They will measure the effects that new and existing drugs have on specific airways. They may find, for example, that drugs that improve overall airflow might not actually target the diseased airways, and vice versa.

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With purchase of the preclinical scanner, Cleveland Clinic will be in the unique position to conduct preclinical assessment of new drugs and validate results in clinical studies using 4Dx’s clinical product (software imaging processing that analyzes airways visualized using standard clinical scanners). This will allow Cleveland Clinic scientists and physicians to conduct translational analyses in patients, helping to accelerate the important path to new clinical discoveries.

“As the incidence of asthma is on the rise, it is critically important that we can accurately diagnose and treat the disease to the best of our ability. The 4Dx scanner is the key to both,” adds Dr. Asosingh.

Dr. Asosingh is staff scientist in the Department of Inflammation and Immunity and Scientific Director of Flow Cytometry at Cleveland Clinic.

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