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Type 2 Diabetes MellitusPhase 3NCT00722371

MK0431 and Pioglitazone Co-Administration Factorial Study in Patients With Type 2 Diabetes Mellitus (0431-102 AM2)

A Phase 3 study testing Sitagliptin phosphate, Pioglitazone hydrochloride and Metformin in people with Type 2 Diabetes Mellitus, run by Merck Sharp & Dohme LLC.

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

A study to evaluate the efficacy and safety of sitagliptin and pioglitazone co-administration in comparison with sitagliptin and pioglitazone monotherapy in patients with type 2 diabetes. Read more about this study

Who is it for?
Ages 18 to 78 years
Conditions the study is for
Type 2 Diabetes Mellitus
What is being tested?
Sitagliptin phosphate, Pioglitazone hydrochloride and Metformin
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
1,615 participants
Where
No sites listed yet
Study dates
5 Sep 2008to 25 Mar 2011
Phase
Phase 3
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 78 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patient is highly unlikely to conceive
  • Patient meets one of the 3 categories is naïve to all antihyperglycemic agent (AHA) therapies, or is non-naïve based upon the patient's current diet, medical regimen and screening A1c patient is currently not on AHA with a screening A1c >=7.5 % and =<11.0 % patient is currently on either metformin pr sulfonylurea monotherapy with a screening A1c >=7.0 % and =<9.0 %

Who cannot join

  • Patient has a history of type 1 diabetes mellitus or history of ketoacidosis or has C=peptide value of =<0.8 ng/mL
  • Patient has previously been treated with insulin, thiazolidinedione (TZD) (rosiglitazone or pioglitazone), any Dipeptidyl peptidase-4 (DPP-4) inhibitor (sitagliptin, vildagliptin, or alogliptin), exenatide or has previously been in a clinical study with any DPP-4 inhibitor or incretin mimetic
  • Patient is on a weight loss program and is not in the maintenance phase or has started a weight loss medication (e.g. orlistat or sibutramine) within the prior 8 weeks
  • Patient has undergone surgery within the prior 30 days or has major surgery planned during the study
  • Patient has a medical history of active liver disease including chronic active hepatitis B or C or symptomatic gallbladder disease including primary biliary cirrhosis
  • Patient has received treatment with an investigational product within 12 weeks prior to Visit 1

About this study

Official title: A Multicenter, Randomized, Double-Blind Study of the Co-Administration of Sitagliptin and Pioglitazone in Patients With Type 2 Diabetes Mellitus Who Have Inadequate Glycemic Control

A study to evaluate the efficacy and safety of sitagliptin and pioglitazone co-administration in comparison with sitagliptin and pioglitazone monotherapy in patients with type 2 diabetes.

Being tested
Sitagliptin phosphate, Pioglitazone hydrochloride, Matching placebo to sitagliptin, Matching placebo to pioglitazone, Metformin
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.

  • Sitagliptin phosphateDrug

    Also called Januvia, Tesavel, Xelevia, Ristaben

    Sitagliptin 100 mg tablet (blinded) orally once daily for 54 weeks.

  • Pioglitazone hydrochlorideDrug

    Also called Actos

    Pioglitazone 15 mg, 30 mg, or 45 mg tablets or capsules (blinded) orally once daily for 54 weeks. Participants randomized to receive pioglitazone 45 mg as monotherapy or in combination with sitagliptin were to start on pioglitazone 30 mg at Week 1 and undergo uptitration to pioglitazone 45 mg at Week 4.

  • Matching placebo to sitagliptinDrug

    Matching placebo to sitagliptin orally once daily for 54 weeks.

  • Matching placebo to pioglitazoneDrug

    Matching placebo to pioglitazone tablets or capsules orally once daily for 54 weeks.

  • MetforminDrug

    Metformin 500 mg (open-label) was to be initiated as rescue therapy to participants not meeting specific glycemic goals. The dose of metformin may have been uptitrated and adjusted, at the discretion of the investigator, up to the maximum approved dose in the country of origin.

Study groups in NCT00722371
Study groupRoleWhat they receive
Sitagliptin 100 mgExperimentalNot described
Receives: Drug: Sitagliptin phosphate; Drug: Matching placebo to pioglitazone; Drug: Metformin
Pioglitazone 15 mgExperimentalNot described
Receives: Drug: Pioglitazone hydrochloride; Drug: Matching placebo to sitagliptin; Drug: Metformin
Pioglitazone 30 mgExperimentalNot described
Receives: Drug: Pioglitazone hydrochloride; Drug: Matching placebo to sitagliptin; Drug: Metformin
Pioglitazone 45 mgExperimentalNot described
Receives: Drug: Pioglitazone hydrochloride; Drug: Matching placebo to sitagliptin; Drug: Metformin
Sitagliptin 100 mg/ Pioglitazone 15 mgExperimentalNot described
Receives: Drug: Sitagliptin phosphate; Drug: Pioglitazone hydrochloride; Drug: Metformin
Sitagliptin 100 mg/ Pioglitazone 30 mgExperimentalNot described
Receives: Drug: Sitagliptin phosphate; Drug: Pioglitazone hydrochloride; Drug: Metformin
Sitagliptin 100 mg/ Pioglitazone 45 mgExperimentalNot described
Receives: Drug: Sitagliptin phosphate; Drug: Pioglitazone hydrochloride; Drug: Metformin

What is being measured

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

  1. Change From Baseline in Hemoglobin A1C (A1C) at Week 24

    A1C represents the percentage of glycosylated hemoglobin.

    Measured: Baseline and Week 24

  2. Change From Baseline in A1C at Week 54

    A1C represents the percentage of glycosylated hemoglobin.

    Measured: Baseline and Week 54

Secondary outcomes (4)
  1. Change From Baseline in Fasting Plasma Glucose (FPG) at Week 24

    Measured: Baseline and Week 24

  2. Change From Baseline in 2-Hour Post-meal Glucose (PMG) at Week 24

    PMG was measured using the Meal Tolerance Test (MTT).

    Measured: Baseline and Week 24

  3. Change From Baseline in FPG at Week 54

    Measured: Baseline and Week 54

  4. Change From Baseline in 2-Hour PMG at Week 54

    PMG was measured using the Meal Tolerance Test (MTT).

    Measured: Baseline and Week 54

Timeline

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

  1. First posted25 Jul 2008 (estimated)
  2. Study start5 Sep 2008
  3. Primary completion26 Oct 2010
  4. Study completion25 Mar 2011

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
1,615 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00722371
Sponsor's protocol ID
0431-102
Other IDs
2008_522
Status last verified
Apr 2017
First submitted
22 Jul 2008
Last updated
12 May 2017
Data monitoring committee
No
Individual data sharing
Yes: http://www.merck.com/clinical-trials/pdf/Merck%20Procedure%20on%20Clinical%20Trial%20Data%20Access%20Final\_Updated%20July\_9\_2014.pdf http://engagezone.msd.com/ds\_documentation.php

Publications

  • Henry RR, Staels B, Fonseca VA, Chou MZ, Teng R, Golm GT, Langdon RB, Kaufman KD, Steinberg H, Goldstein BJ. Efficacy and safety of initial combination treatment with sitagliptin and pioglitazone--a factorial study. Diabetes Obes Metab. 2014 Mar;16(3):223-30. doi: 10.1111/dom.12194. Epub 2013 Aug 29.

    PubMed 23909985

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Sitagliptin phosphate, Pioglitazone hydrochloride and Metformin in people with Type 2 Diabetes Mellitus, run by Merck Sharp & Dohme LLC.

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 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 12 May 2017. Status can change between updates, so confirm with the study contact before making plans.

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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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 17 Oct 2011). 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?

Change From Baseline in Hemoglobin A1C (A1C) at Week 24 (time frame: Baseline and Week 24). The study lists 2 primary outcomes in all. 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 NCT00722371, 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 12 May 2017.

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