Figure 1.

Serum progesterone concentration profile (mean ± SD) in subjects who were confirmed to be ongoing pregnant at week 5. This figure shows the mean serum progesterone concentration between day 5 and the end of trial in the 20 subjects in whom ongoing pregnancy was confirmed at week 5. In both treatment groups (100 mg BID: bis in die/twice daily, 100 mg TID: ter in die/three times daily), mean serum progesterone concentration sustained over 10 ng/ml throughout the treatment and no marked change was seen