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Home NEWS Science News Health

Editorial: A proposal to correct minority underrepresentation in clinical trials

Bioengineer by Bioengineer
January 1, 2019
in Health
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Credit: Mark Mahan for the University of Kentucky


LEXINGTON, Ky. (Jan. 3, 2019) — In an editorial published in CNS Spectrums, Jay Avasarala, MD, PhD, takes the research community to task for its lack of minority representation in Phase III clinical trials for drugs to treat Multiple Sclerosis (MS).

Noting that the disease course of MS in African American (AA) patients is more aggressive, he urged researchers to make more effort to stave off the persistent slide in minority representation, which he believes skews efficacy and disability data and prevents physicians’ ability to extrapolate whether drugs are effective in these populations.

“The MS phenotype in the African American patient is an ideal model to study drug efficacy since the disease follows a rapidly disabling course,” he wrote. “AA MS patients admitted to US nursing homes are six years younger but more disabled compared to Caucasian American (CA) patients with MS. Since phenotypes between CA and AA can be clinically distinct, it is remarkable that not a single study has compared how drugs perform in such diverse groups.”

According to Avasarala, a neurologist specializing in Multiple Sclerosis and neuroimmunology at UK HealthCare’s Kentucky Neuroscience Institute, minority recruitment for clinical trials for MS drugs has declined from 7.7% in 2002 to about 2% in 2013.

In 2014, the FDA’s Center for Drug Evaluation and Research (CDER) launched the Drug Trials Snapshots initiative that endeavored to increase minority representation in drug trials and improve public transparency by providing drug trial data online. While Avasarala acknowledges that the initiative was a good first step, he emphasizes that it does not require drug package inserts to include efficacy data from minority populations, making it difficult for prescribing physicians to determine whether the drug will help patients from minority ethnicities.

In the editorial, Avasarala proposed several changes to help spur minority recruitment, which will in turn improve the quality of data for minority populations and make it easier for physicians to treat their AA patients.

“First, I believe we should require pharmaceutical companies to collect post-marketing data in all minority groups who receive FDA-approved drugs for management of MS and classify responsiveness based on ethnicity,” he said, noting that the FDA has required manufacturers to provide post-marketing data on drug safety for many years.

Avasarala also advocates for a requirement that package labelling include efficacy data from minority populations and that no publication should accept study data without a clarifying statement that acknowledges the lack of sufficient data to make reasonable conclusions in non-Caucasian minorities.

Since the 1970’s, science has documented that MS among African Americans is clinically distinct in its progression and presentation, according to Avasarala, but research into treatments that address their particular phenotype has not kept pace.

“The scientific community has published reams of data , but all that matters to a patient is, ‘OK, doc, how can you treat me?’ “What drugs would you recommend?” And we fall short for African Americans, because we simply don’t have the data.”

“I feel powerless to help them. There needs to be a change. And change ought to begin in the form of a policy shift.”

Avasarala states that his research at UK HealthCare will focus on the translational aspects of MS, datamining, the application of retinal imaging techniques to advance disease diagnosis, and studying in vitro blood-brain barrier models to facilitate drug transportation.

###

CNS Spectrums, published by Cambridge University Press in association with the Neuroscience Education Institute, covers all aspects of the clinical neurosciences, neurotherapeutics, and neuropsychopharmacology, particularly those pertinent to the clinician and clinician investigator.

Media Contact
Laura Wright
[email protected]
859-257-5307

Original Source

https://doi.org/10.1017/S1092852918001517

Related Journal Article

http://dx.doi.org/10.1017/S1092852918001517

Tags: Clinical TrialsMedicine/HealthMinoritiesneurobiology
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