Many blacks avoid participating in clinical trials because they distrust physicians and fear harm, a new Johns Hopkins study found.

The results come amid growing recognition of racial differences in disease rates and treatments. Researchers say some kidney diseases, stroke, lung cancer and diabetes all progress more quickly in blacks and kill more blacks than people of other racial backgrounds.

Recommended Stories

Best hold off on that decongestant

Bringing hospital infections down to zero

Rethinking the county hospital alert system