Please assess the completion status of the following clinical trial:

Trial Title: Extended Letrozole Regimen Versus Clomiphene Citrate for Superovulation in Patients With Unexplained Infertility Undergoing Intrauterine Insemination

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: SINGLE
- Phase: PHASE2
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Patients with unexplained infertility~* Age between 18 - 37 years~* Period of infertility \> 1 year~* Patent Fallopian tubes detected by hysterosalpingography and/or laparoscopy~* Normal basal luteinizing hormone (LH), follicle stimulating hormone (FSH) and prolactin concentrations~* Normal recent semen analysis (according to World Health Organization criteria)~Exclusion Criteria:~* FSH\> 10 IU/L~* Irregular menstrual cycles~* Polycystic ovary syndrome~* Endometriosis~* Endocrinologic disorders~* Systemic disease contraindicating pregnancy~* Previous IUI cycles~* liver or kidney diseases

- Gender: FEMALE
- Minimum Age: 18 Years
- Maximum Age: 37 Years
- Healthy Volunteers: f

Study Arms:
- Extended letrozole regimen (Type: EXPERIMENTAL): None
- Clomiphene citrate regimen (Type: ACTIVE_COMPARATOR): None

Based on this trial design, predict the completion outcome and termination type (if applicable).