Abrar 2017.

Methods	2‐arm active‐controlled randomised trial.
Participants	98 women were randomised in a hospital setting in Pakistan. The population comprised women aged 15‐45 years with threatened miscarriage in their first trimester (up to 12 weeks of gestation). Exclusion criteria comprised women with history of trauma during pregnancy or a history of bleeding disorders.
Interventions	10 mg oral progesterone, twice daily for 1 week versus 400 mg vaginal progesterone, once daily for 1 week.
Outcomes	The study recorded the following outcomes relevant for this review: miscarriage.
Notes	Evidence of trial documentation and data requested from the corresponding author, but no response was received by the time of publication of this review.