Metformin in Patients With PCOS and Predictors of Poor Ovarian Response Ongoing In-vitro Fertilization

Overview[ - collapse ][ - ]

Purpose Metformin should be administered with caution and could be potentially dangerous in infertile patients with PCOS who show a poor ovarian response and are undergoing gonadotropin-based ovarian stimulation. However, data that address this point are totally lacking. On the basis of these considerations, the aim of the current clinical trial was to test the hypothesis that metformin reduces the ovarian response in infertile patients with PCOS who have a potentially poor ovarian response and who undergo gonadotropin stimulation for IVF cycles.
ConditionInfertility
PCOS
Prognosis for Poor Response
InterventionDrug: Metformin
Drug: Placebo
PhasePhase 4
SponsorUniversity Magna Graecia
Responsible PartyUniversity Magna Graecia
ClinicalTrials.gov IdentifierNCT01208740
First ReceivedMay 24, 2010
Last UpdatedMay 23, 2011
Last verifiedMay 2011

Tracking Information[ + expand ][ + ]

First Received DateMay 24, 2010
Last Updated DateMay 23, 2011
Start DateJanuary 2009
Estimated Primary Completion DateMarch 2011
Current Primary Outcome MeasuresRate of cancellation due to low ovarian response [Time Frame: one month] [Designated as safety issue: No]Number of cancelled cycles/total cycles
Current Secondary Outcome Measures
  • Stimulation length [Time Frame: one month] [Designated as safety issue: No]
  • Gonadotropins dose [Time Frame: one month] [Designated as safety issue: No]
  • Ovulation rate [Time Frame: one month] [Designated as safety issue: No]
  • pregnancy rate [Time Frame: one month] [Designated as safety issue: No]
  • Live-birth rate [Time Frame: nine months] [Designated as safety issue: No]
  • Adverse effects [Time Frame: one month] [Designated as safety issue: Yes]

Descriptive Information[ + expand ][ + ]

Brief TitleMetformin in Patients With PCOS and Predictors of Poor Ovarian Response Ongoing In-vitro Fertilization
Official TitleEffects of Metformin on the Ovarian Response to Gonadotropins for in Vitro Fertilization Treatment in Patients With Polycystic Ovary Syndrome and Predictors of Poor Ovarian Response
Brief Summary
Metformin should be administered with caution and could be potentially dangerous in
infertile patients with PCOS who show a poor ovarian response and are undergoing
gonadotropin-based ovarian stimulation. However, data that address this point are totally
lacking.

On the basis of these considerations, the aim of the current clinical trial was to test the
hypothesis that metformin reduces the ovarian response in infertile patients with PCOS who
have a potentially poor ovarian response and who undergo gonadotropin stimulation for IVF
cycles.
Detailed Description
Primary infertile patients with PCOS older than 35 years and/or with a basal
follicle-stimulating hormone (FSH) level higher than 10 IU/L who were scheduled for IVF
cycles were enrolled in the study protocol.
Study TypeInterventional
Study PhasePhase 4
Study DesignAllocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment
Condition
  • Infertility
  • PCOS
  • Prognosis for Poor Response
InterventionDrug: Metformin
500 mg three times daily
Drug: Placebo
1 pill three times daily
Study Arm (s)
  • Experimental: Metformin
    Metformin pre-treatment and co-administration
  • Placebo Comparator: Placebo
    Placebo pre-treatment and co-administration

Recruitment Information[ + expand ][ + ]

Recruitment StatusTerminated
Estimated Enrollment88
Estimated Completion DateMarch 2011
Estimated Primary Completion DateOctober 2010
Eligibility Criteria
Inclusion Criteria:

- PCOS

- Prognosis for poor response

- Infertility

Exclusion Criteria:

- Male factor infertility

- Tubal infertility
GenderFemale
Ages35 Years
Accepts Healthy VolunteersNo
ContactsNot Provided
Location CountriesItaly

Administrative Information[ + expand ][ + ]

NCT Number NCT01208740
Other Study ID Numbers02/2010
Has Data Monitoring CommitteeYes
Information Provided ByUniversity Magna Graecia
Study SponsorUniversity Magna Graecia
CollaboratorsNot Provided
Investigators Study Chair: Fulvio Zullo, MD Department of Obstetrics and Gynecology, University "Magna Graecia" of CatanzaroPrincipal Investigator: Stefano Palomba, MD Department of Obstetrics and Gynecology, University "Magna Graecia" of Catanzaro
Verification DateMay 2011

Locations[ + expand ][ + ]

Pugliese" Hospital
Catanzaro, Italy, 88100