Overview Oral Calcium in Pregnant Women With Hypertension Status: Completed Trial end date: 1999-07-01 Target enrollment: Participant gender: Summary To determine of providing calcium supplementation to women with pre-existing hypertension reduces the level of blood pressure, requirement for antihypertensive drugs, and incidence of pre-eclampsia. Phase: Phase 2 Details Lead Sponsor: National Heart, Lung, and Blood Institute (NHLBI)Treatments: CalciumCalcium, Dietary