A randomized single-blind non-inferiority trial of delayed start with drospirenone-only and ethinyl estradiol-gestodene pills for ovulation inhibition.

We compared the efficacy of 4 mg drospirenone (DRSP) progestin-only pills (POPs) versus combined oral contraceptive pills (COCs) containing 0.02 mg of ethinyl estradiol (EE) and 0.075 mg of gestodene (GS) in ovulation inhibition and inducing unfavorable cervical mucus changes using a delayed-starting approach.

Correlation levels of serum placental growth factor and human chorionic gonadotropin in gestational trophoblastic disease patients.

Objective: To determine the correlation between serum placental growth factor (PlGF) and human chorionic gonadotropin (hCG) in patients with gestational trophoblastic disease (GTD) and to compare serum levels of PlGF in patients with gestational trophoblastic neoplasia to those of patients with hydatidiform mole.

Study Design: Blood and urine samples were collected from GTD patients. Blood and urine levels for PlGF were processed and quantitated by enzyme-linked immunosorbent assay in parallel with serum levels for hCG.