Increasing access to brief Coping Strategy Enhancement for distressing voices: a service valuation exploring a possible rote for briefly-trained therapists

Hearing voices is a distressing and trans-diagnostic experience. Cognitive behavioural therapy (CBT) is an effective psychological treatment for distressing voices, but is offered to only a minority of patients. Limited resources are a barrier to accessing CBT. Evaluations of brief forms of CBT for voices have offered encouraging findings, but the ability of briefly-trained therapists to deliver these brief therapies has yet to be explored. We evaluated the outcomes of a brief form of CBT (Coping Strategy Enhancement, CSE) for voices when delivered by highly-trained and briefly-trained therapists. This was a service evaluation comparing pre-post outcomes in patients who had completed brief CSE over four sessions, within NHS Mental Health Services, delivered by highly-trained and briefly-trained therapists. The primary outcome was the negative impact scale of the Hamilton Program for Schizophrenia Voices Questionnaire. Data were available from 92 patients who completed a course of brief CSE - nearly half of whom received therapy from a briefly-trained therapist. Modest benefits across the sample were consistent with previous evaluations and did not seem to be influenced by the training of the therapist. This service evaluation offers further evidence that brief CSE can begin a therapeutic conversation about distressing voices within routine clinical practice. The usefulness of this initial conversation does not seem to be reliant upon the extent of therapist training, suggesting that briefly-trained therapists may play a role in increasing access to these conversations for patients distressed by hearing voices.