The British Tinnitus Association is the only national charity dedicated to supporting the 10% of the UK adult population who experience tinnitus. We are pleased to lend our support to the AllTrials initiative. We are a world leader in providing support and advice about tinnitus, giving accurate, reliable and authoritative information. If we are to retain our confidence in the advice we produce, we need to ensure that all relevant information is available. As a major supporter of tinnitus research, we also recognise the need to ensure that patients and clinicians alike have confidence in the results of clinical trials.