Standardisation framework for the Maudsley staging method for treatment resistance in depression

Area of Science:

• Psychiatry
• Clinical Psychology
• Neuroscience

Background:

• Treatment-resistant depression (TRD) is a significant clinical challenge.
• A lack of consensus in defining and staging TRD hinders understanding and intervention.
• The Maudsley Staging Method (MSM) is a multidimensional model for staging unipolar depression treatment resistance.

Purpose of the Study:

• To present standardized approaches for rating the Maudsley Staging Method (MSM).
• To facilitate consensus in the definition and staging of treatment-resistant depression (TRD).

Main Methods:

• Guidance on rating the three dimensions of the MSM: treatment failure, symptom severity, and episode duration.
• Introduction of the Maudsley Treatment Inventory (MTI) for assessing treatment failure.
• Utilizing existing instruments like Clinical Global Impression for symptom severity assessment.

Main Results:

• Standardized rating scales for the three MSM dimensions are provided.
• The Maudsley Treatment Inventory (MTI) offers a comprehensive method for evaluating treatment history.
• Simple instruments are recommended for assessing symptom severity and episode duration.

Conclusions:

• The proposed standardized approaches offer clinical and research utility for staging TRD.
• Current staging methods are tentative approximations pending better understanding of depression pathophysiology.
• Future staging developments should incorporate biological and pathophysiological dimensions.