This pilot study was conducted to compare the results of intrauterine insemination (IUI) under ovarian stimulation with either letrozole (Femara) or human menopausal gonadotrophin (HMG). A randomized controlled trial was conducted. Eighty women aged 20-35 years with unexplained infertility of at least 2 years' duration were randomized according to a computer-generated randomization list into the letrozole group and the HMG group. Letrozole was administered at 5 mg/day from day 3 to day 7 of the IUI cycle. HMG injections were started on day 3 at a dose of 75 IU for women under 30 years old and 150 IU for women over 30 years old and monitored periodically by vaginal ultrasound and oestradiol concentrations. The variables selected for analysis were clinical pregnancy rate, endometrial thickness, length of follicular phase and number of preovulatory follicles. No statistically significant difference in clinical pregnancy rates per cycle was found for patients in the letrozole or HMG group (18.4 versus 15.7%). Cost was significantly higher in the HMG stimulation cases (P < 0.001) and no injections were required in the letrozole group. In conclusion, letrozole offers a new treatment regimen in ovarian stimulation regimens for IUI that is cost effective, simple and convenient for the patients.

A single reduced depot dose (1.88 mg) of leuprolide was found to be as effective as classical long multi-dose protocol for pituitary desensitization in COH for ICSI cycles.

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A total of 136 patients with PCOS were followed through the Department of the Obstetrics and Gynaecology, Unit-IV, Lady Aitchison Hospital, Lahore. Patients were randomly divided by lottery method into two groups i.e., Group-A (CoQ10 plus Clomiphene citrate) and Group-B (Clomiphene citrate alone). The selected patients in the study group (group-A) were given Clomiphene citrate 100mg/day from cycle days 2-6 for 45 days (2 cycles) and CoQ10 in a dose of 50mg soft gel capsules thrice per day starting at cycle day-2, until HCG administration. Patients in controlled group (group-B) received Clomiphene citrate 100mg/day twice a day cycle for 45 days. Data were analysed in SPSS v25.0. In group-A (CoQ10 plus Clomiphene citrate), successful ovulation induction was noted in 16 (23.5%) patients, showing that with the addition of CoQ10, the chances of ovulation induction increased. Keywords: Co-enzyme Q10, Clomiphene Citrate, Ovulation Induction, Polycystic Ovarian Syndrome.

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