"When pregnant women are excluded from drug trials, it is harder to know if the medication is safe for mothers and their children."

An expert explains why excluding people with intellectual disabilities from clinical trials is a problem and what can be done to change it.

Only a small number of middle-age adults would be very likely to test new dementia prevention drugs, researchers report.

"These interim results are very encouraging," says Evan Anderson of a COVID-19 vaccine in a phase 1 clinical trial.

Of the roughly 1,500 COVID-19 research studies registered on clinicaltrials.gov, only a handful currently report collecting data on ethnicity. That's a problem.

"Cytokine storms" cause the immune system to attack organs, such as the lungs, that they should be protecting. Can the drug EDP1815 help?

In a clinical trial testing the safety and efficacy of remdesivir, the antiviral drug shows promise in treating adults diagnosed with COVID-19.

Results from a clinical trial for treating COVID-19 with the antiviral drug remdesivir come back next week. Will it turn out to be an effective treatment?

"Before we encourage widespread use of a drug, we need better evidence that it's worth it," says ethicist Alex John London of hydroxychloroquine for COVID-19.

Three bioethicists call for a human challenge study, which they say could bring us a coronavirus vaccine months sooner.