NCT04069117

Brief Summary

The use of GnRH antagonist protocol nowadays is the slandered protocol of controlled ovarian stimulation in patients with poly cystic ovarian syndrome (PCOS) because it decreases the incidence of OHSS(1, 2). However, this protocol may lead to asynchronous growth of follicles with an early dominant follicle specially in PCOS patients(3). In most of cases this phenomenon will affect the IVF outcomes(2, 4) Aromatase inhibitors (AIs) nowadays is recommended to be used for ovulation induction in patients with PCOS (5, 6).It has fewer side effects, and a shorter half-life than clomiphene citrate(CC), and no effect ON the endometrial receptivity. It is used in treating patients with chronic anovulation, unexplained infertility and poor ovarian reserve(7). It acts through decreasing estrogen levels and allows follicle stimulating hormone (FSH) release from the hypothalamus (8, 9). It could be used alone or with combination with human menopausal gonadotropin (HMG) specially in patients with CC resistant(10-13). It also improves the ovarian response to FSH when they are used in combination and it decreases the risk of OHSS (14). This study aims to evaluate the effect of uses of letrozole in combination with HMG during ovarian stimulation in patients having PCOS undergoing IVF/ICSI on the follicular growth pattern, synchronized growth of follicles, maturity of oocyte and the quality of embryos.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
200

participants targeted

Target at P75+ for phase_4

Timeline
Completed

Started Aug 2019

Typical duration for phase_4

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 1, 2019

Completed
22 days until next milestone

First Submitted

Initial submission to the registry

August 23, 2019

Completed
5 days until next milestone

First Posted

Study publicly available on registry

August 28, 2019

Completed
2.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 20, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 20, 2022

Completed
Last Updated

April 6, 2022

Status Verified

April 1, 2022

Enrollment Period

2.6 years

First QC Date

August 23, 2019

Last Update Submit

April 5, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • the number of asynchronized follicles in both groups

    • Asynchronization will considered when there is a difference of at least 2 mm between the dominant follicle and other follicles

    30 min

Study Arms (2)

• Study group

ACTIVE COMPARATOR

It contains 100 patients will undergo ovarian stimulation with letrozole 2.5mg twice daily (Femara; Novartis Pharma Services, Basel, Switzerland) for 5 days starting from the first day of menstruation in combination with low dose step up stimulation with recombinant FSH starting in the third day of menstruation.

Drug: letrozole 2.5mg (Femara; Novartis Pharma Services, Basel, Switzerland)

• Control group

NO INTERVENTION

It contains 100 patients will undergo ovarian stimulation with low dose step up stimulation with recombinant FSH starting in the third day of menstruation

Interventions

letrozole /antagonist protocol

Also known as: letroz 2.5mg (Sun Pharmaceuticals Industries Ltd.,India)
• Study group

Eligibility Criteria

Age20 Years - 40 Years
Sexfemale(Gender-based eligibility)
Gender Eligibility Detailssubfertile women undergoing IVF/ ICSI trial and having polycystic ovarian syndrome
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • \. Ages ≥20 and \<40 years old 2. Women having the diagnosis of polycystic ovarian syndrome according to Rotterdam criteria (15) 3. Women who have at least one of the following indications for IVF or ICSI:
  • Resistance to slandered ovulation induction and life style modification
  • Tubal factors: unilateral or bilateral tubal obstruction, unilateral or bilateral salpingectomy or tubal ligation
  • Male factors: oligoasthenozoospermia or obstructive azoospermia

You may not qualify if:

  • \. Women with unexplained infertility. 2. women with poor ovarian reserve according to Bologna criteria (16). 3. Couples with known chromosomal abnormalities. 4. Women who refuse to participate in this study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Faculty of Medicine

Al Mansurah, Dakahlia Governorate, 050, Egypt

Location

Related Publications (7)

  • Al-Inany HG, Youssef MA, Ayeleke RO, Brown J, Lam WS, Broekmans FJ. Gonadotrophin-releasing hormone antagonists for assisted reproductive technology. Cochrane Database Syst Rev. 2016 Apr 29;4(4):CD001750. doi: 10.1002/14651858.CD001750.pub4.

    PMID: 27126581BACKGROUND
  • Teede HJ, Misso ML, Costello MF, Dokras A, Laven J, Moran L, Piltonen T, Norman RJ; International PCOS Network. Recommendations from the international evidence-based guideline for the assessment and management of polycystic ovary syndrome. Hum Reprod. 2018 Sep 1;33(9):1602-1618. doi: 10.1093/humrep/dey256.

    PMID: 30052961BACKGROUND
  • Wang R, Mol BW. The Rotterdam criteria for polycystic ovary syndrome: evidence-based criteria? Hum Reprod. 2017 Feb;32(2):261-264. doi: 10.1093/humrep/dew287. Epub 2016 Nov 9.

    PMID: 28119448BACKGROUND
  • Ferraretti AP, Gianaroli L. The Bologna criteria for the definition of poor ovarian responders: is there a need for revision? Hum Reprod. 2014 Sep;29(9):1842-5. doi: 10.1093/humrep/deu139. Epub 2014 Jul 9.

    PMID: 25008235BACKGROUND
  • Franik S, Eltrop SM, Kremer JA, Kiesel L, Farquhar C. Aromatase inhibitors (letrozole) for subfertile women with polycystic ovary syndrome. Cochrane Database Syst Rev. 2018 May 24;5(5):CD010287. doi: 10.1002/14651858.CD010287.pub3.

    PMID: 29797697BACKGROUND
  • Zhao Y, Ruan X, Mueck AO. Letrozole combined with low dose highly purified HMG for ovulation induction in clomiphene citrate-resistant infertile Chinese women with polycystic ovary syndrome: a prospective study. Gynecol Endocrinol. 2017 Jun;33(6):462-466. doi: 10.1080/09513590.2017.1292241. Epub 2017 Feb 28.

    PMID: 28277124BACKGROUND
  • Wang R, Kim BV, van Wely M, Johnson NP, Costello MF, Zhang H, Ng EH, Legro RS, Bhattacharya S, Norman RJ, Mol BW. Treatment strategies for women with WHO group II anovulation: systematic review and network meta-analysis. BMJ. 2017 Jan 31;356:j138. doi: 10.1136/bmj.j138.

    PMID: 28143834BACKGROUND

MeSH Terms

Conditions

Polycystic Ovary Syndrome

Interventions

Letrozole

Condition Hierarchy (Ancestors)

Ovarian CystsCystsNeoplasmsOvarian DiseasesAdnexal DiseasesGenital Diseases, FemaleFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesGenital DiseasesGonadal DisordersEndocrine System Diseases

Intervention Hierarchy (Ancestors)

NitrilesOrganic ChemicalsTriazolesAzolesHeterocyclic Compounds, 1-RingHeterocyclic Compounds

Study Officials

  • Mohamed E Taman, MD

    Faculty of Medicine - Mansoura University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
double blinded clinical trial
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: randomized controlled trial
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
lecturer

Study Record Dates

First Submitted

August 23, 2019

First Posted

August 28, 2019

Study Start

August 1, 2019

Primary Completion

February 20, 2022

Study Completion

February 20, 2022

Last Updated

April 6, 2022

Record last verified: 2022-04

Data Sharing

IPD Sharing
Will not share

Locations