I pursued this after the failure of PLOSONE to make the researchers hand over the data in compliance with the journal policy. The researchers relied on the REC. See Expression of Concern and Response here: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0177037 I asked the REC to reconsider. They did but confirmed the decision. I appealed. The decision was confirmed. I appealed to the Chief Executive of the HRA. I received the decision this morning. The REC advice now is that data should be released. I have emailed PLOSONE asking them in light of this change to enforce their conditions of publication and require the sharing of the data.