Evidence-Based Treatment

 Castle Craig’s Treatment Model

The Castle Craig Treatment Model was established in 1988 and is constantly developing to keep up to date with the evolving base of evidence surrounding the treatment of addiction. Castle Craig is always among the first to embrace new psychotherapies and holistic therapies that are proven to improve treatment outcomes.

Our treatment is very successful. It is evidence based, and the evidence is independently verified.

At the heart of our treatment model is 12-step facilitation based on the Minnesota Model, alongside specialist therapies such as cognitive behavioural therapy (CBT), eye-movement desensitisation and reprocessing (EMDR) and motivational enhancement therapy adapted for addiction treatment. These are supported by complementary therapies, detoxification and close medical supervision, as well as a strong therapeutic community of patients.

Evidence to Support our Treatment Model

2015 Treatment Outcome Research

Our treatment model not only has academic and theoretical backing, but also regularly carries out its own patient outcome research. The most recent independent outcome study we produced in 2015 suggests that:

  • 73.4% of those who attended treatment at Castle Craig were totally abstinent from all drugs or alcohol at follow-up (after about 1 year). 
  • 91.8% of those questioned were either living with reduced alcohol or drug use or totally abstinent.

Treatment outcomes 2015

Our treatment is very successful. It is evidence based, and the evidence is independently verified.

There are very few drug and alcohol treatment services in London and the UK that can demonstrate this kind of evidence for their treatment programme.

2016 Treatment Outcome Review

Our most recent review, A Review of Evidence Supporting Castle Craig's Treatment Programme, written by Oliver Barnes, an experimental psychology graduate from the university of Oxford, and published in August 2016, focusses on three main areas:

  • Outcome studies conducted with former patients from Castle Craig,
  • Evidence in support of residential as opposed to outpatient rehabilitation,
  • Evidence in support of 12 step facilitation as a treatment method.

The evidence presented in the review comes from multiple avenues: from Castle Craig’s own outcome studies, theories from the neuroscience behind addiction, evidence from other treatment centres, and longitudinal studies carried out on drug and alcohol dependents over the past 40 years.


The review concludes that the treatment model of Castle Craig, in providing residential care that utilises Twelve Step Facilitation as one of its primary treatment methods, has been associated with:

  • Longer periods of sobriety,
  • Large increases in measures associated with quality of life such as physical health or occupation, 
  • A greater proportion of clients reaching sobriety than is observed after alternative methods.

As renowned Consultant Psychiatrist Professor Jonathan Chick writes in his introduction to this review: “The approach that has evolved at Castle Craig...has adopted methods that over the years have produced research-validated results. For those who choose such an approach to recovery, there is evidence of its effectiveness.”

To read the full review of Castle Craig’s Treatment Model, you can access and download the full PDF here.

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