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Disorder of Glucose RegulationPhase 4NCT01856907

Sitagliptin + Metformin Compared to Metformin Monotherapy and Placebo in Women With a Recent GDM

A Phase 4 study testing Sitagliptin-Metformin and Metformin in people with Disorder of Glucose Regulation, run by Woman's 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

Gestational diabetes mellitus (GDM) is defined as "any degree of glucose intolerance with onset or first recognition during pregnancy." GDM is one of the most frequent metabolic disorders occurring during pregnancy. Read more about this study

Who is it for?
Ages 18 to 42 years, women only
Conditions the study is for
Disorder of Glucose Regulation
What is being tested?
Sitagliptin-Metformin and Metformin
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
36 participants
Where
1 siteUnited States
Study dates
28 Sep 2013to 28 Sep 2017
Phase
Phase 4
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 to 42 years
  • Women only
  • No healthy volunteers
  • Adult

Who may be able to join

  • Females 18 years to 42 years of age who experienced gestational diabetes mellitus (GDM) during recent (within 12 months) pregnancy with prediabetic hyperglycemia determined by an oral glucose tolerance test (OGTT) with 75 g glucose postpartum. Study subjects will be inclusive of prior GDM women with impaired fasting glucose (IFG), impaired glucose tolerance (IGT), or both (IFG/IGT) postpartum.
  • Written consent for participation in the study

Who cannot join

  • Cholestasis during the past pregnancy
  • Any hepatic diseases in the past (viral hepatitis, toxic hepatic damage, jaundice of unknown etiology)
  • Serum aspartate transaminase (AST) and/or alanine aminotransferase (ALT) level exceeding more than twice normal lab values
  • Presence of hypersensitivity to sitagliptin or other DPP-4 inhibitor
  • Current use of metformin, thiazolidinediones, GLP-1 receptor agonists, DPP-4 inhibitors, or weight loss medications (prescription or over the counter [OTC])
  • Prior use of medication to treat diabetes except gestational diabetes
Show all 12Show fewer
  • Use of drugs known to exacerbate glucose tolerance
  • History of diabetes or prior use of medications to treat diabetes except GDM
  • Creatinine clearance less than 60 ml/min
  • Pregnancy planned during the coming two years
  • Currently lactating
  • Patient not willing to use adequate contraception during study period (unless sterilized)

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Woman's Hospital

    Baton Rouge, Louisiana, 70817

Other trials in United States

About this study

Official title: A Randomized Pilot Study Evaluating Combination Dipeptidyl Peptidase-4 Inhibitor Sitagliptin Plus Metformin Compared to Metformin Monotherapy and Placebo on Metabolic Abnormalities in Women With a Recent History of GDM

Gestational diabetes mellitus (GDM) is defined as "any degree of glucose intolerance with onset or first recognition during pregnancy." GDM is one of the most frequent metabolic disorders occurring during pregnancy. Approximately 7% of all pregnancies in the United States are complicated by gestational diabetes resulting in more than 200,000 cases annually. There is epidemiologic evidence associating GDM with insulin resistance, glucose intolerance, and type 2 diabetes (DM2). Among all the risk factors of diabetes mellitus, the experience of gestational diabetes is the strongest one. Systematic reviews of older studies conclude that 35-60% women with gestational diabetes will develop type 2 diabetes at rates much greater than control groups who did not have glucose intolerance during pregnancy. Studies are needed for optimal postpartum and long-term health of women who have had GDM. Recent evidence suggests that incretin-based therapies may be useful for the treatment of DM2 because continuous administration of glucagon-like peptide 1 (GLP-1) produces substantial improvements in glucose control and ß-cell function in subjects with DM2. Inhibition of dipeptidyl peptidase-4 (DPP-4) increases the concentration of GLP-1 and may potentially delay disease progression in GDM considering the ß-cell function improvement in DM2 and ß-cell mass shown to increase in animal models. This study will examine if combination sitagliptin (a DPP-4 inhibitor)-plus metformin is more effective than metformin alone or placebo in improving metabolic parameters, specifically the impact on β-cell function, in prior GDM women with glucose abnormalities.

Read the detailed description

Gestational diabetes mellitus (GDM) is defined as "any degree of glucose intolerance with onset or first recognition during pregnancy." GDM is one of the most frequent metabolic disorders occurring during pregnancy. Approximately 7% of all pregnancies in the United States are complicated by gestational diabetes resulting in more than 200,000 cases annually. There is epidemiologic evidence associating GDM with insulin resistance, glucose intolerance, and type 2 diabetes (DM2). Among all the risk factors of diabetes mellitus, the experience of gestational diabetes is the strongest one.

Gestational diabetes is often the culmination of years of unrecognized and unmodified diabetes risk factors that lead to overt and occult clinical manifestations during pregnancy. Systematic reviews of older studies conclude that 35-60% women with gestational diabetes will develop type 2 diabetes at rates much greater than control groups who did not have glucose intolerance during pregnancy. The higher rates were in studies of particular ethnic groups in the U.S. Presently, in the literature, there are described new, more efficient methods of diabetes prevention in groups with a high risk of this disorder, which involve both, lifestyle modification and pharmacological therapies. Lifestyle intervention was found to reduce the incidence of type 2 diabetes by 58% and metformin by 31% as compared with placebo. Studies are needed for optimal postpartum and long-term health of women who have had GDM. Considerable recent evidence suggests that incretin-based therapies may be useful for the treatment of DM2 because continuous administration of glucagon-like peptide 1 (GLP-1) produces substantial improvements in glucose control and ß-cell function in subjects with type 2 diabetes. Inhibition of dipeptidyl peptidase-4 (DPP-4) increases the concentration of GLP-1 and may potentially delay disease progression in GDM considering the ß-cell function improvement in DM2 and ß-cell mass shown to increase in animal models. This study will examine if combination sitagliptin-plus metformin is more effective than metformin alone or placebo in improving metabolic parameters, specifically the impact on β-cell function, in at-risk women with a recent history of GDM.

Being tested
Sitagliptin-Metformin, Metformin, Placebo pill
Keywords
prediabetes, impaired fasting/impaired glucose tolerance, post gestational diabetes, diabetes prevention
Medical subject headings
Prediabetic State, Glucose Intolerance

What participants receive

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

  • Sitagliptin-MetforminDrug

    Also called Janumet

    Experimental -dipeptidyl peptidase-4 (DPP-4) inhibitor- oral medication

  • MetforminDrug

    Also called Glucophage

    Biguanide- insulin sensitizer

  • Placebo pillDrug

    Also called placebo control

    Will evaluate effect of lifestyle and diet only

Study groups in NCT01856907
Study groupRoleWhat they receive
Sitagliptin-MetforminExperimental50 mg/1000 mg twice a day (BID)
Receives: Drug: Sitagliptin-Metformin
Placebo pillPlacebo comparator1 pill/BID for 16 weeks
Receives: Drug: Placebo pill
MetforminActive comparator1000 mg BID
Receives: Drug: Metformin

What is being measured

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

  1. Normalization of Glucose Levels

    Normalization of glucose in patients with abnormal glucose levels is defined as a fasting glucose level of <100 mg/dL and a 2-hour glucose level following a 75 gram oral glucose load of <140 mg/dL

    Measured: 16 weeks

Secondary outcomes (9)
  1. Fasting Blood Glucose

    Blood glucose in the fasting state

    Measured: 16 weeks

  2. Mean Blood Glucose Level From the Oral Glucose Tolerance Test (OGTT)

    The mean blood glucose is calculated by averaging the 4 blood glucose levels measure during a 75 gm oral glucose tolerance test . This involves summing the glucose levels measured at baseline, and 1/2 hour,1 hour and 2 hours after the glucose load and dividing by 4..

    Measured: 16 weeks

  3. Fasting Insulin Resistance

    Insulin resistance calculated from fasting glucose and insulin levels known as HOMA-IR

    Measured: 16 weeks

  4. Matsuda Index of Insulin Sensitivity

    Composite insulin sensitivity index calculated from from glucose and insulin levels obtained during the OGTT

    Measured: 16 weeks

  5. Oral Disposition Index

    Measure of pancreatic beta cell compensatory action known as IS-SI

    Measured: 16 weeks

  6. Triglyceride/HDL-Cholesterol Ratio

    The ratio of triglyceride to HDL cholesterol is used as an indirect measure of insulin resistance

    Measured: 16 weeks

  7. Body Mass Index

    Measure of body weight corrected by height

    Measured: 16 weeks

  8. Waist Circumference

    Measure of central fat

    Measured: 16 weeks

  9. Waist-to-Height Ratio

    Measure of central obesity adjusted for stature

    Measured: 16 weeks

Timeline

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

  1. First posted20 May 2013 (estimated)
  2. Study start28 Sep 2013
  3. Primary completion5 Sep 2017
  4. Study completion28 Sep 2017

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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Investigator
Enrolment
36 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01856907
Sponsor's protocol ID
RP13-009
Status last verified
Jan 2018
First submitted
14 May 2013
Last updated
23 Jan 2018
Data monitoring committee
Yes
Individual data sharing
No: Individual data will only be shared with participant

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Sitagliptin-Metformin and Metformin in people with Disorder of Glucose Regulation, run by Woman's 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 2 inclusion and 12 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 23 Jan 2018. 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. Some participants in this study may receive a placebo. 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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

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 23 Jan 2018). 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?

Normalization of Glucose Levels (time frame: 16 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 23 Jan 2018.

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