Letrozole versus clomiphene citrate for superovulation in Egyptian women with unexplained infertility: a randomized controlled trial.

Objectives: To compare the efficacy of letrozole with clomiphene citrate (CC) in Egyptian women with unexplained infertility.

Study Design: This randomized controlled trial was conducted at Ain Shams University Hospital and Dar Al Hekma hospital between February 2010 and May 2011.

Patients And Methods: Two hundreds and seventy women with unexplained infertility were randomized into two groups using computer-generated randomization plan, and were given letrozole 2.