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Non-randomised trial, 2015

Does this birth control pill help premenstrual symptoms in Japanese women?

Yes, in this study of 48 Japanese women, most premenstrual symptoms improved significantly after 3 and 6 cycles of treatment. The study had no comparison group, so we cannot be fully certain of the effect.

Early or limited evidence 48 Japanese women with dysmenorrhea and premenstrual symptoms

What they did

Open-label study of 48 Japanese women with dysmenorrhea and premenstrual symptoms. They took a combined birth control pill with ethinylestradiol 20 µg and drospirenone 3 mg in a 24/4 regimen for 6 treatment cycles. Symptoms were measured at baseline and after 3 and 6 cycles.

What they found

Most premenstrual symptoms were significantly alleviated by three and six cycles of treatment. The birth control pill also significantly improved the severity of dysmenorrhea.

What it means for you

This birth control pill combination may help women in Japan who have PMS and period pain. The main limitation is that this was an open-label study with no control group for comparison.

48

women treated

6

treatment cycles

20 µg

ethinylestradiol dose

About the study

Original title
Effectiveness of ethinylestradiol/drospirenone for premenstrual symptoms in Japanese patients with dysmenorrhea: Open-label pilot study
Authors
Takeda T, Kondo A, Koga S et al.
Journal
The journal of obstetrics and gynaecology research
Year
2015
Study design
Non-randomised trial
What was tested
Ethinylestradiol 20 µg plus drospirenone 3 mg in 24/4 regimen for 6 treatment cycles

Topics