NCT01233206

Brief 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.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
120

participants targeted

Target at P50-P75 for phase_4

Timeline
Completed

Started May 2009

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

May 1, 2009

Completed
1.4 years until next milestone

First Submitted

Initial submission to the registry

October 8, 2010

Completed
24 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2010

Completed
2 days until next milestone

First Posted

Study publicly available on registry

November 3, 2010

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2011

Completed
Last Updated

June 10, 2011

Status Verified

June 1, 2011

Enrollment Period

1.5 years

First QC Date

October 8, 2010

Last Update Submit

June 9, 2011

Conditions

Keywords

PCOSPolycystic ovary syndromeCancelled cyclesOHSSInfertility

Outcome Measures

Primary Outcomes (1)

  • Rate of OHSS

    one month

Secondary Outcomes (9)

  • Stimulation length

    one month

  • Gonadotropins dose

    one month

  • Dominant follicles on day of ovulation triggering

    one month

  • Ovulation rate

    one month

  • Peak estradiol levels on day of ovulation triggering

    one month

  • +4 more secondary outcomes

Study Arms (2)

Experimental group

EXPERIMENTAL

Patients receiving metformin pretreatment and co-administration

Drug: Metformin

Control group

PLACEBO COMPARATOR

Placebo

Drug: Placebo administration

Interventions

Metformin pre-treatment and co-administration

Experimental group

Placebo pre-treatment and co-administration

Control group

Eligibility Criteria

Age18 Years - 35 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • History of one previous cancelled cycle for high-risk of OHSS, or history of moderate/severe OHSS during their previous IVF cycle
  • Infertility
  • Polycystic ovary syndrome (PCOS)
  • insulin resistance
  • hyperandrogenism

You may not qualify if:

  • BMI\>30 kg/m2
  • age \>35 years
  • FSH\>9UI/L

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Pugliese" Hospital

Catanzaro, 88100, Italy

Location

Related Publications (3)

  • Palomba S, Falbo A, Orio F Jr, Manguso F, Russo T, Tolino A, Annamaria C, Dale B, Zullo F. A randomized controlled trial evaluating metformin pre-treatment and co-administration in non-obese insulin-resistant women with polycystic ovary syndrome treated with controlled ovarian stimulation plus timed intercourse or intrauterine insemination. Hum Reprod. 2005 Oct;20(10):2879-86. doi: 10.1093/humrep/dei130. Epub 2005 Jun 15.

    PMID: 15958399BACKGROUND
  • Tso LO, Costello MF, Albuquerque LET, Andriolo RB, Macedo CR. Metformin treatment before and during IVF or ICSI in women with polycystic ovary syndrome. Cochrane Database Syst Rev. 2020 Dec 21;12(12):CD006105. doi: 10.1002/14651858.CD006105.pub4.

  • Palomba S, Falbo A, Carrillo L, Villani MT, Orio F, Russo T, Di Cello A, Cappiello F, Capasso S, Tolino A, Colao A, Mastrantonio P, La Sala GB, Zullo F, Cittadini E; METformin in High Responder Italian Group. Metformin reduces risk of ovarian hyperstimulation syndrome in patients with polycystic ovary syndrome during gonadotropin-stimulated in vitro fertilization cycles: a randomized, controlled trial. Fertil Steril. 2011 Dec;96(6):1384-1390.e4. doi: 10.1016/j.fertnstert.2011.09.020. Epub 2011 Oct 7.

MeSH Terms

Conditions

InfertilityPolycystic Ovary Syndrome

Interventions

Metformin

Condition Hierarchy (Ancestors)

Genital DiseasesUrogenital DiseasesOvarian CystsCystsNeoplasmsOvarian DiseasesAdnexal DiseasesGenital Diseases, FemaleFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsGonadal DisordersEndocrine System Diseases

Intervention Hierarchy (Ancestors)

BiguanidesGuanidinesAmidinesOrganic Chemicals

Study Officials

  • Stefano Palomba

    University Magna Graecia

    PRINCIPAL INVESTIGATOR
  • Fulvio Zullo

    University Magna Graecia

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER

Study Record Dates

First Submitted

October 8, 2010

First Posted

November 3, 2010

Study Start

May 1, 2009

Primary Completion

November 1, 2010

Study Completion

January 1, 2011

Last Updated

June 10, 2011

Record last verified: 2011-06

Locations