As a sponsor, when dealing with a patient recruitment solutions provider, you’ll want to have sight of particular metrics that give you a snapshot of how well things are going.
If you have an agency-style payment model in place – where you are covering the ad spend – you’ll obviously want to see how much is being spent.
In the pay-per-patient model, it’s unlikely you’ll see how much is being spent on advertising, but you should still be provided with stats that show you how many Impressions the ads have received (which represents the number of people who’ve seen an ad), the number of click throughs to your trial pre-screening website, and the number of conversions. (ie the number of applications to participate in the trial). All of these metrics should be readily available to you on an ongoing basis, either in a dashboard format or via reports.