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Cardiovascular DiseasesPhase 2NCT00770575

Efficacy Study of Pioglitazone and Atorvastatin Combination Therapy in Treating Subjects With Elevated Risk for Cardiovascular Disease

A Phase 2 study testing Pioglitazone and atorvastatin and Atorvastatin in people with Cardiovascular Diseases, run by Takeda.

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

The purpose of this study is to determine the effect of pioglitazone, once daily (QD), and atorvastatin combination therapy compared to atorvastatin monotherapy in patients at risk for cardiovascular disease. Read more about this study

Who is it for?
Ages 30 to 70 years
Conditions the study is for
Cardiovascular Diseases
What is being tested?
Pioglitazone and atorvastatin and Atorvastatin
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
148 participants
Where
No sites listed yet
Study dates
Jun 2005to Oct 2006
Phase
Phase 2
Are there results?
None posted in the registry

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 30 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Intima-media thickness of Common Carotid Artery greater than or equal to 0.8 mm (at least on one side).
  • Increased cardiovascular risk defined as one or more of the following:
  • medical history of infarction
  • coronary angiography with proven cardiovascular disease
  • instable Angina pectoris
  • duplex-sonography of cervical or leg vessels with proven atherosclerotic vascular alterations
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  • electrocardiogram with ischemia
  • stroke
  • transient ischemic attack
  • peripheral arterial occlusion
  • vessel surgery
  • hypertension (RR greater than 140/90)
  • antihypertensives
  • high density lipoprotein less than 40 mg/dl.
  • Body mass index greater than or equal to 25 kg/m2.
  • Females of childbearing potential who are sexually active must agree to use adequate contraception, and can neither be pregnant nor lactating from Screening throughout the duration of the study.

Who cannot join

  • History of overt type-2-diabetes according to the World Health Organization criteria.
  • History of type-1-diabetes.
  • History of more than one unexplained hypoglycemic episode within the last 6 months.
  • Statin therapy within the last 4 weeks.
  • Anamnestic history of hypersensitivity to the study drugs or to drugs with similar chemical structures.
  • History of severe or multiple allergies.
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  • Treatment with any other investigational drug within 3 months before trial entry.
  • Progressive fatal disease.
  • Myopathy.
  • Drug or alcohol abuse within the last 5 years.
  • Smoker defined as patient with evidence or history of tobacco or nicotine use within the last 6 months before the screening visit.
  • A history of heart failure (New York Heart Association stage II - IV) or significant respiratory, gastrointestinal, hepatic (glutamate-pyruvate-transaminase time greater than 2.5 times the normal reference range), renal (creatinine greater than 2.0 mg/dl) or hematological disease.
  • Blood donation within the last 30 days.
  • Is required to take or intends to continue taking any disallowed medication, any prescription medication, herbal treatment or over-the counter medication that may interfere with evaluation of the study medication, including:
  • ciclosporin
  • erythromycin
  • clarithromycin
  • itraconazole
  • ketoconazole
  • nefazodone
  • niacin
  • gemfibrozil and other fibrates
  • HIV-Protease-Inhibitors
  • Pre-treatment with thiazolidinediones within 3 months before trial entry.

About this study

Official title: Double Blinded Study of the Effects of Pioglitazone in Combination With Atorvastatin in Comparison to Atorvastatin Treatment Alone on Intima-Media Thickness in Patients at Risk for Vascular Complications

The purpose of this study is to determine the effect of pioglitazone, once daily (QD), and atorvastatin combination therapy compared to atorvastatin monotherapy in patients at risk for cardiovascular disease.

Read the detailed description

Carotid intima-media thickness is a well described surrogate marker for cardiovascular risk. A thickened carotid intima media layer correlates not only with the presence of cardiovascular risk factors but also the risk of future macrovascular events such as myocardial infarction and stroke. The interventional approach of cardiovascular risk factors with angiotensin converting enzyme system blockers, calcium antagonists or beta blockers can result in reduction of progression or even net regression of carotid intima-media thickness. The most potent agents, however, are statins which have consistently shown effects on carotid intima-media thickness in patients with hypercholesterolemia and/or atherosclerotic disease.

Peroxisome proliferator activator receptor-gamma activation by thiazolidinediones is a promising new approach which reduces insulin resistance and improves lipid profile. In addition to their metabolic activities, peroxisome proliferator activator receptor-gamma activators were shown to exert anti-inflammatory effects, to improve endothelial function and to inhibit atherogenesis in diabetic and in non-diabetic atherosclerosis-prone animal models. Treatment with peroxisome proliferator activator receptor-gamma agonists have shown to reduce arterial pressure and carotid intima-media thickness in diabetic and non-diabetic patients at risk for cardiovascular disease.

The aim of this study is to evaluate the effect of Pioglitazone in addition to Atorvastatin compared to Atorvastatin alone on vascular risk markers and intima-media thickness in patients with elevated risk for cardiovascular disease.

Being tested
Pioglitazone and atorvastatin, Atorvastatin
Keywords
Biological Markers, Biochemical Markers, Carotid Artery, Internal, Carotid Artery, Common, Marker, Surrogate, Vascular Diseases, Diabetes Mellitus, Drug Therapy
Medical subject headings
Cardiovascular Diseases, Vascular Diseases, Diabetes Mellitus

What participants receive

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

  • Pioglitazone and atorvastatinDrug

    Also called ACTOS®, AD4833

    Pioglitazone 30 mg, capsules, orally, once daily and atorvastatin 20 mg, tablets, orally, once daily for 4 weeks; increase to:

    Pioglitazone 45 mg, capsules, orally, once daily and atorvastatin 40 mg, tablets, orally, once daily for up to 20 weeks.

  • AtorvastatinDrug

    Pioglitazone placebo-matching capsules, orally, once daily and atorvastatin 20 mg, tablets, orally, once daily for 4 weeks; increased to

    Pioglitazone placebo-matching capsules, orally, once daily and atorvastatin 40 mg, tablets, orally, once daily for up to 20 weeks.

Study groups in NCT00770575
Study groupRoleWhat they receive
Pioglitazone 30mg to 45 mg QD + Atorvastatin 20 mg to 40 mg QDExperimentalNot described
Receives: Drug: Pioglitazone and atorvastatin
Atorvastatin 20mg to 40 mg QDActive comparatorNot described
Receives: Drug: Atorvastatin

What is being measured

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

  1. Change in the intima-media thickness of the common carotid artery.

    Measured: Week 24.

Secondary outcomes (11)
  1. Change in the intima-media thickness of the internal carotid artery.

    Measured: Week 24.

  2. Change in the intima-media thickness of the carotid bulbus.

    Measured: Week 24.

  3. Change from Baseline in Efficacy Laboratory findings (Interleukin-6, high sensitive C reactive peptide and monocyte chemotactic protein-1)

    Measured: Week: 24.

  4. Change from Baseline in Efficacy Laboratory findings (matrix metalloproteinase-9, soluble CD40 Ligand, P-Selectin, soluble intracellular adhesion molecule 1 and soluble vascular cell adhesion molecule 1).

    Measured: Week: 24.

  5. Change from Baseline in Efficacy Laboratory findings (adiponectin, tissue plasminogen activator, Plasma glucose, Insulin and Intact proinsulin).

    Measured: Week: 24.

  6. Change from Baseline in Efficacy Laboratory findings (blood lipids (total cholesterol, high density lipoprotein, triglycerides) and low density lipoprotein-subfractions).

    Measured: Week: 24.

  7. Change from Baseline in Glycosylated Hemoglobin.

    Measured: Week: 24.

  8. Change from Baseline in Beta cell function (Homeostatic Model Assessment - beta cell response Score).

    Measured: Week: 24.

  9. Change from Baseline in Insulin sensitivity using the Homeostatic Model Assessment - Sensitivity Score).

    Measured: Week: 24.

  10. Change from Baseline in Microcirculation assessment.

    Measured: Week: 24.

  11. Change from Baseline in Pulse wave velocity.

    Measured: Weeks: 12 and 24.

Timeline

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

  1. First posted10 Oct 2008 (estimated)
  2. Study startJun 2005
  3. Primary completionOct 2006
  4. Study completionOct 2006

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
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
148 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00770575
Sponsor's protocol ID
ATS K015
Other IDs
2004-004463-30, D-PIO-106, U1111-1115-9124, 2004
Status last verified
Jul 2010
First submitted
9 Oct 2008
Last updated
5 Jul 2010
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Pioglitazone and atorvastatin and Atorvastatin in people with Cardiovascular Diseases, run by Takeda.

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 16 inclusion and 24 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 5 Jul 2010. 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 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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 in the intima-media thickness of the common carotid artery. (time frame: Week 24.). 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 5 Jul 2010.

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