NCT02690129.

Study name	Vaginal progesterone for treatment of threatened miscarriage; randomized clinical trial
Methods	2‐arm no treatment‐controlled randomised trial.
Participants	Women aged between 20 and 35 years, who are pregnant with a gestational age less than 24 weeks, presenting with bleeding with or without pain, a single viable fetus (confirmed by ultrasound examination. Exclusion criteria include currently under medication for any chronic diseases (DM, thyroid, liver, renal, cardiac and autoimmune disease); hypersensitivity to progesterone; any documented congenital fetal anomaly in the current pregnancy; women receiving hormonal treatment in the current pregnancy; women that conceived via ART.
Interventions	200 mg vaginal micronized progesterone for 15 days versus no treatment
Outcomes	Miscarriage rate up to 28 weeks of gestation; gestational age at delivery or termination of pregnancy
Starting date	February 2016
Contact information	omshaaban2000@yahoo.com
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