Metformin in High Responder Polycystic Ovary Syndrome (PCOS) Patients

Status Completed

Clinical Trial Summary

The use of metformin pre-treatment and co-administration was recently proposed in infertile women affected by polycystic ovary syndrome (PCOS) treated with gonadotropins.

Data from meta-analyses showed that metformin administration significantly reduced the stimulation length and the total dose of gonadotropins used in PCOS women undergoing gonadotropins stimulation for non in-vitro fertilization (IVF) cycles. On the other hand, in IVF cycles metformin was demonstrated to significantly reduce the ovarian hyperstimulation syndrome (OHSS) rate in infertile patients with PCOS treated with gonadotropins.

The metformin regulating effect on the ovarian response was also observed in a randomized controlled trial (RCT) on young non-obese insulin-resistant women with PCOS receiving gonadotropins for mono-ovulation induction. In particular, metformin increased the mono-ovulatory cycles, the duration of stimulation and the amount of gonadotropins used, while it reduced the number of dominant follicles and the estradiol (E2) levels.

The aim of the present study was to evaluate the effect of metformin administration in high responder PCOS patients undergoing gonadotropins ovarian stimulation for IVF cycles.

Clinical Trial Description

Infertile young non-obese insulin-resistant patients with PCOS who had a background of the first IVF treatment cycle cancelled because of high risk for OHSS will be enrolled and randomized in two treatment arms.

In their second IVF attempt, the experimental group will receive metformin (500 mg, 3 times daily) pre-treatment for two weeks and co-administration during gonadotropins ovarian stimulation; the control group will be treated with placebo (2 cps daily) pre-treatment and co-administration by using the same schedule of the experimental group. In all patients, ovarian stimulation will be carried out with a personalized step-down gonadotropin in association with a minidose flare-up GnRH agonist protocol. ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01233206
Study type	Interventional
Source	University Magna Graecia
Contact
Status	Completed
Phase	Phase 4
Start date	May 2009
Completion date	January 2011

View Details

See also
Status	Clinical Trial	Phase
Completed	`NCT03607409` - Role of Inhibin A as Biomarker for Ovarian Response for IVF Treatment
Recruiting	`NCT02312076` - GnRHa for Luteal Phase Support in Long GnRHa Protocol Cycles	Phase 4
Terminated	`NCT02161861` - Improvement of IVF Fertilization Rates, by the Cyclic Tripeptide FEE - Prospective Randomized Study	N/A
Completed	`NCT03287479` - Comparison of a Semi-automated Closed Vitrification System (Gavi®) With a Manual Open Vitrification Sytem (Cryotop®)	N/A
Terminated	`NCT03522350` - Randomized Trial Comparing EmbryoScope With EmbryoScope+.	N/A
Completed	`NCT04496284` - Embryo Transfer Outcomes After Vitrification With Slush Nitrogen Compared to Liquid Nitrogen	N/A
Completed	`NCT03623659` - pArtiaL zonA pelluciDa Removal by assisteD hatchINg of Blastocysts	N/A
Completed	`NCT03895099` - New Ovarian Stimulation With Random Start, Use of Progestin Protocol for Oocyte Donors	Phase 3
Active, not recruiting	`NCT04142112` - Randomized, Standard-Controlled, Study to Evaluate the Ohana IVF Sperm Preparation Kit, SPeRtility IVF Next Generation	N/A
Completed	`NCT03152643` - Cumulative Live Birth Rates After Cleavage-stage Versus Blastocyst-stage Embryo Transfer	N/A
Recruiting	`NCT03683771` - Assessment of Endometrial Pattern and Sub-endometrial Vascularity in ICSI Outcome
Recruiting	`NCT03161119` - Comparing Two Different Embryo Transfer Catheters	N/A
Completed	`NCT04108039` - Micronized Progesterone vs Gonadotropin-releasing Hormone (GnRH) Antagonist in Freeze-all IVF Cycles.	N/A
Completed	`NCT03677492` - Supplementing Intracytoplasmic Sperm Injection Handling Medium With Cytochalasin D ( ICSI-CD)	N/A
Completed	`NCT03678584` - Supplementing Intracytoplasmic Sperm Injection Handling Medium With Chaetoglobosin A ( ICSI-CA)	N/A
Completed	`NCT03678818` - Supplementing Intracytoplasmic Sperm Injection Handling Medium With Latrunculin A (ICSI-LA)	N/A
Completed	`NCT03678610` - Handling Medium for ICSI With Ionomycin and Latrunculin A	N/A
Completed	`NCT03678558` - Oocyte Vitrification Aided With Cytochalasin B	N/A
Completed	`NCT03678597` - Supplementing Intracytoplasmic Sperm Injection Handling Medium With Latrunculin B ( ICSI-LB)	N/A
Completed	`NCT03678571` - Oocyte Vitrification Aided With Latrunculin A	N/A

Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Metformin in High Responder Polycystic Ovary Syndrome (PCOS) Patients Undergoing IVF Cycles

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms