Bleeding profile of women with cardiovascular risk factors using a drospirenone only pill with 4 mg over nine cycles compared to desogestrel 0.075 mg.

Pedro-Antonio Regidor, Santiago Palacios, Enrico Colli

Gynecological endocrinology : the official journal of the International Society of Gynecological Endocrinology 2022 Apr

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Progestin-only pills are associated with irregular bleeding patterns, including amenorrhea. Desogestrel (DSG) 75 mcg, a pill that inhibits ovulation, shows poor cycle control that may harm acceptability and compliance. A Drospirenone (DRSP)-only pill was developed with 24 & 4 days of active & placebo days every 28-day cycle to improve cycle control. A phase III study in healthy women aged 18 to 45 years was performed to compare the bleeding profile of women taking a DRSP versus DSG over nine cycles. 249 women were older > 35 years: 173 using DRSP and 73 DSG. 259 women had a BMI > 25 kg/m2: 189 using DRSP and 70 DSG and 340 women were smokers: 237 using DRSP and 103 DSG. The amount of unscheduled bleeding/spotting days was analyzed in each of these sub-groups and compared statistically. Age: During cycles 2-4, the mean number of unscheduled bleeding days and spotting was 8.1 (SD10.53) for DRSP and 20.1 (19.41) for DSG; p = .0089. BMI > 25 kg/m2: During cycles 2-4 the mean number of unscheduled bleeding days and spotting was 7.8 (SD 12.18) for DRSP and 17.7 for DSG (SD 19.39); p = .0001. Smokers: During cycles 2-4, the mean number of unscheduled bleeding days and spotting was 9.6 (SD 11.69) for DRSP and 17.4 for DSG (SD 17.47); p = .0016. These analyses show the improvement in the bleeding profile of women with specific cardiovascular risk factors using the DRSP only oral contraceptive product compared to DSG.ImplicationsAn improvement in the bleeding profile of women with specific cardiovascular risk factors like age > 35 years, BMI > 25kg/m2, and smokers using the DRSP only oral contraceptive product is described.Herby a higher contraceptive efficacy in these patients that additionally benefit from estrogen-free contraceptive methods is expected.

Citation

Pedro-Antonio Regidor, Santiago Palacios, Enrico Colli. Bleeding profile of women with cardiovascular risk factors using a drospirenone only pill with 4 mg over nine cycles compared to desogestrel 0.075 mg. Gynecological endocrinology : the official journal of the International Society of Gynecological Endocrinology. 2022 Apr;38(4):333-338