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Selecting methodologies for the evaluation of differences in time to response between antidepressants
Stuart A Montgomery1, Per Bech, Pierre Blier
1Imperial College School of Medicine, London, United Kingdom. stuart@samontgomery.co.uk
The Journal of Clinical Psychiatry
|August 29, 2002
Summary
The survival analysis approach is the most effective method for determining differences in how quickly antidepressant medications start working. Other methods also offer valuable insights into antidepressant efficacy.
Area of Science:
- Pharmacology
- Clinical Psychology
- Biostatistics
Background:
- Delayed therapeutic effects of antidepressants hinder clinical use.
- Focus is shifting towards antidepressants with a faster onset of action.
Purpose of the Study:
- To evaluate methodologies for assessing the time to response for antidepressant drugs.
- To identify the most rigorous and sensitive approach for detecting differences in antidepressant response speed.
Main Methods:
- Comparison of statistical timepoint identification, pattern analysis, and survival analysis.
- Evaluation of conceptual and practical advantages and disadvantages of each method.
Main Results:
- Multiple methodologies exist for evaluating antidepressant time to response.
- Each method presents unique advantages and disadvantages.
Conclusions:
- Survival analysis is considered the most rigorous and sensitive method for detecting differences in antidepressant response speed.
- Other methodologies provide valuable supplementary information for antidepressant efficacy assessment.