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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT00795808
Other study ID # UAuckland
Secondary ID
Status Completed
Phase Phase 4
First received November 20, 2008
Last updated November 20, 2008
Start date August 2003
Est. completion date October 2008

Study information

Verified date November 2008
Source University of Auckland, New Zealand
Contact n/a
Is FDA regulated No
Health authority New Zealand: Health Research Council
Study type Interventional

Clinical Trial Summary

1. Metformin increases the pregnancy rate when added to the standard treatment of anovulatory polycystic ovary syndrome (PCOS).

2. Metformin in combination with clomiphene, is more effective than clomiphene alone or metformin alone improves fertility outcomes in women with PCOS of reasonably healthy body weight (BMI </= 32).

3. Metformin improves fertility outcomes in women with BMI > 32 with PCOS.


Recruitment information / eligibility

Status Completed
Enrollment 171
Est. completion date October 2008
Est. primary completion date October 2008
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Female
Age group 18 Years to 39 Years
Eligibility Inclusion Criteria:

- Women between the age of 18 and 39 years inclusive.

- Anovulatory infertility of duration at least 12 months.

- Polycystic ovary syndrome, based on Rotterdam consensus criteria.

- Normal serum prolactin, thyroid function and 17-hydroxyprogesterone.

- Normal serum prolactin, thyroid function and 17-hydroxyprogesterone;

Exclusion Criteria:

- Presence of any other significant infertility factor including male factor, known tubal disease or history of an ectopic pregnancy, known endometriosis affecting the fallopian tubes or ovaries.

- Already taking oral hypoglycaemics.

- Diabetics receiving treatment.

- Renal impairment

- Chronic hepatic disease

- Cardiac Disease

- Alcohol dependency

- Pre-disposition to lactic acidosis

- Previous ovarian drilling procedure, gonadotrophin injection therapy, IUI (intrauterine insemination) or IVF ( in vitro fertilisation).

- For those women who have had previous fertility treatment, the following would be excluded:

- Women who have had > 5 cycles of clomiphene citrate

- Women who have had > 5 months metformin treatment previously

- Women who have proven to be resistant to 100mg or more of clomiphene citrate.

Study Design

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


Related Conditions & MeSH terms


Intervention

Drug:
Metformin
500mg tds for 6 months
Placebo
One tablet tds for 6 months
Metformin + Clomiphene
500mg tds + Ovulatory dose for 6 months
Metformin
500mg tds for 6 months
Clomiphene
Ovulatory dose for 6 months

Locations

Country Name City State
New Zealand University of Auckland Auckland

Sponsors (3)

Lead Sponsor Collaborator
University of Auckland, New Zealand Auckland Medical Research Foundation, Mercia Barnes Trust of the Royal Australian and New Zealand College of Obstetricians and Gynaecologists

Country where clinical trial is conducted

New Zealand, 

Outcome

Type Measure Description Time frame Safety issue
Primary Clinical pregnancy within 6 calendar months of randomisation No
Secondary Live birth No
Secondary Adverse events Yes
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