Exploring the TPQ as a possible predictor of antidepressant response to nefazodone in a large multi-site study.
Subjects in the midst of a major depressive episode completed the Tridimensional Personality Questionnaire (TPQ) prior to beginning an open trial of nefazodone. A multiple regression analysis was used to further examine the finding of Joyce et al. (1994; Temperament predicts clomipramine and desipramine response in major depression, J. Affect. Disord. 30 (1994) 35-46) that a model involving TPQ Reward Dependence and Harm Avoidance scores, and their interaction, significantly predicted treatment response. The model was found to have significant predictive value (R2 = 0.011, P = 0.0053), but to account for a trivial 1.1% of the variance. Individuals with high Reward Dependence scores had a significantly lower response rate when response was defined as a 60% reduction from baseline HAM-D score. Although the clinical utility of the present findings is uncertain, this line of investigation attempting to link temperament to pharmacological response represents a potentially useful future strategy.
Nelson
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Washington University School of Medicine, Department of Psychiatry, St. Louis, MO 63110, USA.
Cloninger
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D000928:Antidepressive Agents / Q000494:pharmacology* / Q000627:therapeutic use*; D003866:Depressive Disorder / Q000188:drug therapy*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010555:Personality Inventory; D010879:Piperazines; D012044:Regression Analysis; D013694:Temperament / Q000187:drug effects*; D014230:Triazoles / Q000494:pharmacology* / Q000627:therapeutic use*
D000928:Antidepressive Agents; D010879:Piperazines; D014230:Triazoles; C051752:nefazodone