Symptom-onset treatment for women with premenstrual dysphoric disorder.
Symptoms of premenstrual dysphoric disorder (PMDD) respond to serotonin reuptake inhibitors when treatment is limited to 14 days of the menstrual cycle. Many women have less than a week of symptoms, and shorter treatment intervals would further reduce medication exposure and costs.


METHODS
Twenty women with PMDD were randomly assigned to either paroxetine CR or placebo for 1 cycle and crossed over to the other condition for a second cycle. Subjects initiated treatment when premenstrual symptoms began and stopped within 3 days of beginning menses.


RESULTS
Women took capsules for an average of 9 days (range, 3-15 days), including the first few days of menses. Moderate "PMDD level" symptoms occurred in 1 subject (6%) for 2 days and 4 subjects (24%) for 1 day before starting paroxetine or placebo. Daily Record of Severity of Problems scores were lower in the paroxetine group compared with the placebo group, although the differences were not statistically significant. However, the mean on-treatment Inventory of Depressive Symptomatology (clinician-rated) score for the paroxetine group was 17.9 +/- 8.3 compared with 31.5 +/- 11.2 in the placebo group (adjusted mean difference = 13.6, P = 0.009). Response (Clinical Global Impressions Scale score of 1 or 2) occurred in 70% of subjects randomized to paroxetine CR and 10% of those assigned to placebo (chi2(1) = 7.5, P = 0.006). Discontinuation symptoms did not differ in the groups.


CONCLUSIONS
These data suggest the need to further evaluate symptom-onset treatment in a larger randomized clinical trial.
Yonkers
Kimberly A
KA
Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06510, USA. kimberly.yonkers@yale.edu
Holthausen
Gretchen A
GA
Poschman
Karalee
K
Howell
Heather B
HB
D000328:Adult; D018592:Cross-Over Studies; D004334:Drug Administration Schedule; D005260:Female; D006801:Humans; D008597:Menstrual Cycle; D017374:Paroxetine / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D010349:Patient Compliance; D011293:Premenstrual Syndrome / Q000188:drug therapy* / Q000523:psychology; D011569:Psychiatric Status Rating Scales; D017367:Selective Serotonin Reuptake Inhibitors / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*
D017374:Paroxetine; D017367:Selective Serotonin Reuptake Inhibitors