NCT01046032

Brief Summary

The aim of study was to investigate whether pre-treatment with metformin before and during IVF increases the live birth rate compared to placebo in women with sonographic evidence of polycystic ovaries (PCO), but without any clinical manifestations of polycystic ovary syndrome (PCOS).

Trial Health

87
On Track

Trial Health Score

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

Enrollment
134

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Dec 2005

Longer than P75 for not_applicable

Geographic Reach
1 country

3 active sites

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

December 1, 2005

Completed
3.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2009

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2009

Completed
8 months until next milestone

First Submitted

Initial submission to the registry

January 3, 2010

Completed
8 days until next milestone

First Posted

Study publicly available on registry

January 11, 2010

Completed
Last Updated

January 11, 2010

Status Verified

January 1, 2010

Enrollment Period

3.4 years

First QC Date

January 3, 2010

Last Update Submit

January 8, 2010

Conditions

Keywords

Polycystic ovariesOvarian stimulationIVFOvarian hyperstimulationMetformin

Outcome Measures

Primary Outcomes (1)

  • Live birth rate

    End of pregnancy

Secondary Outcomes (1)

  • Severe ovarian hyperstimulation syndrome

    2 months

Study Arms (2)

Metformin

ACTIVE COMPARATOR

Drug (including placebo)

Drug: Metformin

Sugar pill

PLACEBO COMPARATOR

Drug (including placebo)

Drug: Placebo

Interventions

Women were randomised to receive either metformin or placebo starting three weeks before initiation of a GnRH agonist during an IVF treatment cycle (seven weeks prior to oocyte collection and then stopped at oocyte collection). Seventy identical packs of metformin and 70 identical packs of placebo were supplied by DHP Ltd, Crickhowell, Powys (UK) a commercial clinical trial supplier. The randomisation service was provided by DHP Ltd.

Metformin

Women were randomised to receive either metformin or placebo starting three weeks before initiation of a GnRH agonist during an IVF treatment cycle (seven weeks prior to oocyte collection and then stopped at oocyte collection). Seventy identical packs of metformin and 70 identical packs of placebo were supplied by DHP Ltd, Crickhowell, Powys (UK) a commercial clinical trial supplier. The randomisation service was provided by DHP Ltd.

Sugar pill

Eligibility Criteria

AgeUp to 38 Years
Sexfemale
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Women attending with ovulatory PCO due to undergo IVF/ICSI treatment.
  • First or second cycle of IVF/ICSI.
  • If previously on metformin, a minimum one month washout period was required.
  • Polycystic ovaries diagnosed by ultrasound presence of ≥12 follicles measuring 2-9 mm in diameter in at least one ovary and/or increased ovarian volume (≥10 ml).
  • Written informed consent.

You may not qualify if:

  • Clinical manifestations of PCOS, including any of the following:
  • Oligo- or amenorrhoea with cycles ≥42 days apart.
  • Anovulation with mid-luteal progesterone \<16 nmol/L.
  • Biochemical hyperandrogenism with serum testosterone ≥3.5 nmol/L and/or free androgen index \>5 (FAI = \[total testosterone/SHBG\] x 100).
  • Clinical hyperandrogenism with hirsutism or acne requiring treatment at least weekly.
  • Age \>38 years.
  • BMI \>35 kg/m2.
  • Basal FSH \>12 IU/L.
  • Liver disease or ALT \>80 IU/L.
  • Renal disease, or creatinine \>130 nmol/L.
  • Alcoholism or drug abuse.
  • Diabetes mellitus (evaluated by fasting glucose \>6.7mmol/L).
  • Per oral steroid treatment in last month.
  • Cimetidine, anticoagulation, erythromycin, or other macrolides in last month.
  • Hyperprolactinemia (Prolactin \>700 mIU/L).
  • +2 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

IVF Hammersmith

London, United Kingdom

Location

Nuture IVF Unit

Nottingham, United Kingdom

Location

Oxford Fertility Unit

Oxford, OX39DU, United Kingdom

Location

Related Publications (3)

  • Tang T, Glanville J, Orsi N, Barth JH, Balen AH. The use of metformin for women with PCOS undergoing IVF treatment. Hum Reprod. 2006 Jun;21(6):1416-25. doi: 10.1093/humrep/del025. Epub 2006 Feb 24.

    PMID: 16501038BACKGROUND
  • Kjotrod SB, von During V, Carlsen SM. Metformin treatment before IVF/ICSI in women with polycystic ovary syndrome; a prospective, randomized, double blind study. Hum Reprod. 2004 Jun;19(6):1315-22. doi: 10.1093/humrep/deh248. Epub 2004 Apr 29.

    PMID: 15117902BACKGROUND
  • Swanton A, Lighten A, Granne I, McVeigh E, Lavery S, Trew G, Talmor A, Raine-Fenning N, Jayaprakasan K, Child T. Do women with ovaries of polycystic morphology without any other features of PCOS benefit from short-term metformin co-treatment during IVF? A double-blind, placebo-controlled, randomized trial. Hum Reprod. 2011 Aug;26(8):2178-84. doi: 10.1093/humrep/der120. Epub 2011 May 18.

MeSH Terms

Conditions

Polycystic Ovary Syndrome

Interventions

Metformin

Condition Hierarchy (Ancestors)

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

Intervention Hierarchy (Ancestors)

BiguanidesGuanidinesAmidinesOrganic Chemicals

Study Officials

  • Tim J Child, MA MD MRCOG

    University of Oxford

    STUDY DIRECTOR
  • Alexander G Swanton, MBBS MRCOG

    University of Oxford

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER

Study Record Dates

First Submitted

January 3, 2010

First Posted

January 11, 2010

Study Start

December 1, 2005

Primary Completion

May 1, 2009

Study Completion

May 1, 2009

Last Updated

January 11, 2010

Record last verified: 2010-01

Locations