Effect of Perimenstrual Ovarian Steroid Supplementation on Perimenstrual Suicidality

A large number of observational studies have documented increased risk of suicide attempt, suicide death, and more lethal attempts during the perimenstrual (around menses) window of the female reproductive cycle; however, no experiments have investigated the causal role of ovarian steroid changes across the natural perimenstrual period in risk factors for acute suicidality. In response, the proposed experimental work investigates a causal role of perimenstrual withdrawal from the hormones estradiol (E2) and progesterone (P4) in previously-documented acute perimenstrual increases in suicidality. Participants are 30 women between the ages of 18 and 45 with current suicidal ideation but minimal risk for suicide attempt. Using a placebo-controlled, crossover within-person design, the experiment tests the hypothesis that suicidality will be heightened during natural perimenstrual E2/P4 withdrawal (under placebo), but that experimental prevention of this perimenstrual E2/P4 withdrawal (with exogenous administration of E2/P4 hormones) will prevent these perimenstrual increases in suicidality and associated risk factors.