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Letrozole vs Clomiphene Citrate for Induction of Ovulation in Women With Polycystic Ovarian Syndrome

Letrozole vs Clomiphene Citrate for Induction of Ovulation in Women With Polycystic Ovarian Syndrome: Randomised Control Trial

Status
Completed
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05702957
Enrollment
220
Registered
2023-01-27
Start date
2016-09-30
Completion date
2019-12-31
Last updated
2023-01-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Infertility, Polycystic Ovary Syndrome

Keywords

polycystic ovary syndrome, Infertility, Clomiphene citrate, Letrozole

Brief summary

It was randomised controlled study to compare the efficacy of clomiphene and letrozole in polycystic ovarian syndrome(PCOS) women with infertility.The aim was to select more appropriate treatment for ovulation induction in PCOS women.

Detailed description

The prevalence of infertility due to polycystic ovarian syndrome in Pakistan is 21.9%.It leads to an ovulation which results in infertility.The objective of this study was to compare the efficacy of letrozole vs clomiphene citrate for ovulation induction in PCOS women.Methods.It was a randomised controlled trial conducted in department of gynaecology and obstetrics ,Services Hospital Lahore from 2016-2019. Total 230 patients were included in study, they were divided in two groups, out of which 220 patients were analysed. .Group-A patients were given clomiphene citrate 50-150mg per day for 5 days starting from 2nd day of menses and group B patients were given letrozole 2.5-7.5mg per day for 5 days. Transvaginal ultrasound monitoring done from day 10-12 of menstrual cycle to measure follicle number and size.When follicle achieved a diameter of 18-20mm, then Inj HCG(human chorionic gonadotropin)10,000 IU intramuscular was given. Ovulation was confirmed by day 21 S.progesterone. When patient conceived, they were followed up till delivery.

Interventions

DRUGletrozole 2.5mg-7.5mg

Tab letrozole 2.5 mg-7.5mg per day for 5 days started from 2nd day of menses.

DRUGClomiphene Citrate 50mg-150mg

Tab clomiphene citrate 50-150mg per day for 5 days started from 2nd day of menses.

Sponsors

Services Institute of Medical Sciences, Pakistan
Lead SponsorOTHER_GOV

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Masking description

Two treatment groups were made by random computer generated number i.e. Group A and Group B. Two Concealed boxes labelling A and B containing study drugs were made by pharmacist.Then participants were given drug from concealed boxes according to computer generated number.

Intervention model description

Total 230 patients were randomized in study, divided in two groups by computer generated numbers, out of which 220 patients were analyzed. .Group-A patients were given clomiphene citrate 50-150mg per day for 5 days starting from 2nd day of menses and group B patients were given letrozole 2.5-7.5mg per day for 5 days.

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 40 Years
Healthy volunteers
Yes

Inclusion criteria

* Women age between 18-40 years. * Normal husband semen analysis.

Exclusion criteria

* All infertile couples who had other causes of infertility than PCOS. * Those who had recently taken these medications. * Any contraindication to use of drugs e.g renal or hepatic dysfunction, hypersensitivity to this drug. * BMI\>35 because obese women respond poorly to ovulation induction.

Design outcomes

Primary

MeasureTime frameDescription
Pregnancy rate5th week of cycle when periods missedTotal number of patients conceived after treatment

Secondary

MeasureTime frameDescription
Live birth rate9 monthstotal number of live births divided by total number of patients in a group
Monofollicular development10-12 day of menstrual cyclewhen only one follicle achieve diameter of greater than or equal to 18mm
ovulation rate10-22 day of cyclewhen follicle achieved diameter of 18-20mm,HCG given,ovulation confirmed by day 21 progesterone.
MiscarraigeLess than 24weeksspontaneous loss of pregnancy before 24 weeks of gestation
Adverse effectsfirst 10days of cyclehot flushes.
Multifollicular development10-12 day of menstrual cyclewhen 2 or more follicles achieve diameter of \>12mm

Countries

Pakistan

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 8, 2026