Dana Ost (IMAGE) Johns Hopkins Medicine Caption Dana Ost, who was diagnosed with mesothelioma in 2018, continues to participate in PrE0505 clinical study. Credit Dana Ost Usage Restrictions none License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.