Nat. Biotechnol. 33, 795 (2015); published online 7 August 2015; corrected after print 6 October 2015

In the version of this article initially published, in the “Notable clinical trial results (2Q 2015)” table, clinical trial data for the drug Glembatumumab vedotin was said to be phase 3. It was phase 2, not phase 3, data. The error has been corrected in the HTML and PDF versions of the article.