Strengthening clinical effectiveness trials: equipoise-stratified randomization.

Area of Science:

• Psychiatric clinical trial methodology
• Evidence-based treatment research
• Mental health treatment innovation

Background:

• Evolving psychiatric practice necessitates clinical trials with broader aims.
• Current randomized trial designs (completely randomized and clinician's choice) have limitations.
• Need for trial designs accommodating multiple treatments and patient/clinician preferences.

Purpose of the Study:

• To introduce and describe the novel "equipoise stratified" design for clinical trials.
• To contrast the equipoise stratified design with completely randomized and clinician's choice designs.
• To illustrate the application of these designs using a real-world example.

Main Methods:

• Description of three clinical trial designs: completely randomized, clinician's choice, and equipoise stratified.
• Comparative analysis of the advantages and disadvantages of each design.
• Application of the National Institute of Mental Health Sequenced Treatment Alternatives to Relieve Depression trial as a case study.

Main Results:

• Completely randomized designs require all options to be acceptable to patients and clinicians.
• Clinician's choice designs allow for preference but limit direct comparison of specific options.
• The equipoise stratified design aims to merge the benefits of both approaches while mitigating drawbacks.

Conclusions:

• The equipoise stratified design offers a promising new approach for psychiatric clinical trials.
• This design facilitates broader research aims by accommodating multiple treatment options and preferences.
• It enhances the ability to conduct robust comparisons in complex treatment landscapes.