This paper seeks to examine the feasibility of targeting cognitive therapyduring early relapse, using a single case design. Gumley, White and Power(1999) offer a theoretical conceptualization of psychotic relapse based onTeasdale and Barnard's (1993) ICS model of depression. Thisconceptualization aims to provide a means for clinicians and patients toformulate the key psychological factors, which may be responsible for theinitiation, acceleration and maintenance of relapse, thereby enabling thesefactors to be targeted should a relapse be indicated. The interventionreceived by a case illustrated in this paper is derived from the ICSconceptualization of relapse. The intervention has two stages: an initialengagement and formulation phase and, if required, a targeted cognitivetherapy phase. All of the characteristics of traditional cognitive therapyare adhered to, including the use of structure, problem focus, agenda, asocratic style, and collaboration. The paper concludes that there is a needfor further research to provide further evidence of the feasibility andefficacy of this approach.