Table 1

Occurrence of adverse events (AEs) during the 1-year safety extension phase (full analysis set). (AEs are shown for all women who participated in the safety extension phase and according to the regimens received in the 1-year comparative phase)

Regimen received in comparative phase
Adverse event [n (%)]All women (n=727)FlexibleMIB (n=453)Conventional 28-day (n=155)Fixed extended (n=119)
Any AE409 (56.3)244 (53.9)104 (67.1)61 (51.3)
Most frequent AEs*
 Diarrhoea39 (5.4)25 (5.5)7 (4.5)7 (5.9)
 Headache53 (7.3)25 (5.5)20 (12.9)8 (6.7)
 Nasopharyngitis81 (11.1)51 (11.3)19 (12.3)11 (9.2)
Discontinued due to AE9 (1.1)5 (1.0)4 (2.4)0 (0)
Any SAEs29 (2.7)19 (3.0)3 (1.4)7 (3.3)
  • Data shown as mean (SD).

  • * AEs (shown in alphabetical order) are those that occurred in >5% of all women who participated in the 1-year safety extension phase.

  • During the safety extension phase, all women received ethinylestradiol 20 µg/drospirenone 3 mg in the flexibleMIB regimen with the exception of 28 women participating in the bone mineral density analysis. Such women continued to receive either the conventional 28-day or fixed extended regimens.

  • AE, adverse event; MIB, management of intracyclic (breakthrough) bleeding; SAE, serious adverse event.