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Randomised trial, 2002

Does the hormone allopregnanolone relate to how well antidepressants work for severe PMS?

Women whose PMS improved on antidepressants had significantly lower allopregnanolone levels than those who didn't improve. This is preliminary evidence but suggests allopregnanolone may play a role in treatment response.

Moderate study design 46 women with severe premenstrual syndrome

What they did

Researchers gave 46 women with severe PMS either sertraline, desipramine, or placebo in a double-blind study for 2 to 3 months. They measured blood allopregnanolone levels before and after treatment and tracked symptom changes daily.

What they found

Women who improved had significantly lower allopregnanolone levels after treatment compared to those who didn't improve. The improvement was strongest for depression and appetite changes. These findings remained significant even after adjusting for which drug they took, cycle day, and other factors.

What it means for you

This is the first controlled study suggesting allopregnanolone may be involved in how antidepressants help PMS. The main limitation is the small sample size and that results are preliminary.

46

women studied

27 of 46

women improved

2-3 months

treatment duration

About the study

Original title
Allopregnanolone levels and symptom improvement in severe premenstrual syndrome
Authors
Freeman EW, Frye CA, Rickels K et al.
Journal
Journal of clinical psychopharmacology
Year
2002
Study design
Randomised trial
Participants
46
What was tested
Sertraline, desipramine, or placebo for 2 to 3 months

Topics