Current publications are below: the main trial paper is currently in press and will be uploaded when available. More papers to follow.
Main Trial paper
Sheridan Rains, L., et al. (2019). "Clinical and cost-effectiveness of contingency management for cannabis use in early psychosis: the CIRCLE randomised clinical trial." BMC Medicine 17(1): 161.
Trial protocol paper
Johnson S, Sheridan Rains L, Marwaha S et al. A randomised controlled trial of the clinical and cost‐effectiveness of a contingency management intervention compared to treatment as usual for reduction of cannabis use and of relapse in early psychosis (CIRCLE): a study protocol for a randomised controlled trial. Trials 2016;17:515.