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Non Insulin Dependent DiabetesPhase 2MIPODNCT00835861

Effectiveness of Metformin Compared to Insulin in Pregnant Women With Mild Preexisting or Early Gestational Diabetes

A Phase 2 study testing Metformin and Insulin in people with Non Insulin Dependent Diabetes and Pregnancy, run by University of North Carolina, Chapel Hill at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Many women come into pregnancy with diabetes that is controlled with either Metformin or diet control; however, the current standard of care for the treatment of preexisting diabetes in pregnancy is insulin. Read more about this study

Who is it for?
Ages 18 years and older, women only
Conditions the study is for
Non Insulin Dependent Diabetes, Pregnancy
What is being tested?
Metformin and Insulin
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
31 participants
Where
1 siteUnited States
Study dates
Aug 2008to Apr 2010
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Receiving prenatal care at University of North Carolina (UNC), Chapel Hill Obstetric clinics and planning delivery at UNC Women's Hospital
  • Diagnosis of Diabetes prior to pregnancy with use of an oral hypoglycemic agent or dietary control
  • Diagnosis of early gestational diabetes prior to 20 weeks gestation via abnormal 3 hour glucose challenge testing using the national diabetes data group (NDDG)criteria
  • Less than 24 weeks at study enrollment
  • Singleton or twin pregnancy
  • English or Spanish speaking
  • Able to give informed consent

Who cannot join

  • End organ complications of diabetes (retinopathy, renal insufficiency, etc.)
  • Prior need for insulin for glycemic control
  • History of diabetic ketoacidosis (DKA) or hyperosmolar state
  • Prior adverse reaction (ie. lactic acidosis) or allergy to Metformin
  • Kidney or liver disease
  • Significant medical co-morbidities (lupus, cystic fibrosis, etc.) Hypertension controlled on one medication, well controlled asthma, and well controlled thyroid disease are not excluded.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of North Carolina Hospitals Obstetric Clinics

    Chapel Hill, North Carolina, 27599

Other trials in United States

About this study

Official title: Pilot Study of Metformin vs. Insulin in Pregnant Overt Diabetics (MIPOD)

Many women come into pregnancy with diabetes that is controlled with either Metformin or diet control; however, the current standard of care for the treatment of preexisting diabetes in pregnancy is insulin. Metformin is widely used in the non-pregnant population for glycemic control, and has been used in pregnancy for other indications without adverse maternal or fetal outcomes. What remains unproven is the ability of Metformin to adequately control glucose in women during pregnancy.

Our goal is to randomize 100 women who enter pregnancy with diabetes that is controlled by either diet or an oral agent and women who are found to have an abnormal glucose challenge test at less than 20 weeks to either standard treatment with weight based Regular and neutral protamine Hagedorn (NPH) insulin or Metformin. Our hypothesis is that Metformin will provide glycemic control that is equivalent to insulin in these women.

Being tested
Metformin, Insulin
Keywords
Non Insulin Dependent Diabetes, Pregnancy
Medical subject headings
Diabetes Mellitus, Type 2

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • MetforminDrug

    Also called Glucophage

    Women randomized to the Experimental arm will receive standard diet and glucose self-monitoring education. They will be initiated on Metformin 500 BID if they were medication naïve, or will be continued on their current dosage of Metformin if they were taking it prior to pregnancy. At each clinic visit fasting and one hour post prandial glucose values will be reviewed, and dosage will be titrated to a maximum of 2250mg/day to achieve target glycemic control. If glycemic control can not be achieved with Metformin as a single agent insulin will be added.

  • InsulinDrug

    Also called Regular Insulin, Novolin R, Humulin R, NPH Insulin

    Women randomized to the Insulin group will receive standard diet and glycemic monitoring education. They will be initiated on weight based Regular and NPH insulin at a total dosage of 0.7units/kg in the first trimester or 0.8units/kg in the second trimester divided as 2/3 of the total dosage (with 2/3 given as NPH and 1/3 given as Regular) administered before breakfast and 1/3 of the total dosage (with 1/2 given as NPH and 1/2 given as Regular)administered with dinner. At each clinic visit fasting and one hour post prandial glucose values will be reviewed, and dosage will be titrated to achieve optimal glycemic control with fasting values <90 and one hour post prandial values <130.

Study groups in NCT00835861
Study groupRoleWhat they receive
MetforminExperimentalWomen who enter pregnancy with a diagnosis of non insulin dependent/Type 2 Diabetes that is controlled with diet or an oral hypoglycemic agent, and women who demonstrate abnormal glucose tolerance prior to 20 weeks of gestation by abnormal 3 hour glucose challenge testing will be offered study participation. After informed consent, they will be randomized 1:1 to either the Metformin or Insulin group.
Receives: Drug: Metformin
InsulinActive comparatorWomen who enter pregnancy with a diagnosis of non insulin dependent/Type 2 Diabetes that is controlled with diet or an oral hypoglycemic agent, and women who demonstrate abnormal glucose tolerance prior to 20 weeks of gestation by abnormal 3 hour glucose challenge testing will be offered study participation. After informed consent, they will be randomized 1:1 to either the Metformin or Insulin group.
Receives: Drug: Insulin

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Blood Glucose Measurements

    Patients self monitored glucose measures throughout pregnancy to aid glycemic control. Fasting morning measures and postprandial measures were taken at 1 hour after breakfast, lunch, and dinner.

    Measured: Daily fasting and 1-hr post prandial measures were taken from time of enrollment until delivery

Secondary outcomes (8)
  1. Number of Patients With Obstetric Complications

    Maternal complications were stillbirths, major malformations, shoulder dystocia, or postpartum hemorrhage requiring transfusion.

    Measured: Throughout pregnancy until hospital discharge following delivery.

  2. Maternal Weight Gain

    Measured: Baseline throughout pregnancy until last prenatal visit.

  3. Number of Babies With Neonatal Hypoglycemia

    Initial neonatal glucose < 40 mg/dL

    Measured: Time of delivery through hospital discharge

  4. Glycosylated Hemoglobin (HbA1c) by Pregnancy Trimester

    Measured: 1st, 2nd, and 3rd trimester

  5. Percent of Glucose Values at or Below Fasting Goal (<95 mg/dL)

    NUMBER OF ASSESSMENTS OF FASTING GLUCOSE VALUES <95

    Measured: Baseline throughout pregnancy until time of delivery

  6. Percent of Glucose Values at or Below Postprandial Goal (<130 mg/dL)

    NUMBER OF ASSESSMENTS OF POSTPRANDIAL GLUCOSE VALUES <130

    Measured: Baseline throughout pregnancy until time of delivery

  7. Number of Episodes Maternal Hypoglycemia

    Maternal glucose < 60 mg/dL

    Measured: Baseline throughout pregnancy until time of delivery

  8. Number of Babies With Adverse Neonatal Outcomes

    Resuscitation in the delivery room, preterm birth < 37 weeks, neonatal intensive care unit care, birth injury or diagnosis of neonatal complication, glucose infusion, antibiotics, or phototherapy.

    Measured: Delivery until hospital discharge

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted4 Feb 2009 (estimated)
  2. Study startAug 2008
  3. Primary completionFeb 2010
  4. Study completionApr 2010

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
31 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00835861
Sponsor's protocol ID
UNC08-0898
Acronym
MIPOD
Status last verified
Apr 2014
First submitted
2 Feb 2009
Last updated
25 Apr 2017
Data monitoring committee
No

Publications

  • Hickman MA, McBride R, Boggess KA, Strauss R. Metformin compared with insulin in the treatment of pregnant women with overt diabetes: a randomized controlled trial. Am J Perinatol. 2013 Jun;30(6):483-90. doi: 10.1055/s-0032-1326994. Epub 2012 Oct 24.

    PubMed 23096052

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Metformin and Insulin in people with Non Insulin Dependent Diabetes and Pregnancy, run by University of North Carolina, Chapel Hill at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 25 Apr 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 26 May 2014). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Blood Glucose Measurements (time frame: Daily fasting and 1-hr post prandial measures were taken from time of enrollment until delivery). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00835861, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Apr 2017.

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